National Library of Energy BETA

Sample records for late 19th century

  1. California's 19th congressional district: Energy Resources |...

    Open Energy Info (EERE)

    Chowchilla Biomass Facility Fresno Biomass Facility Madera Biomass Facility SPI Sonora Biomass Facility Utility Companies in California's 19th congressional district Modesto...

  2. Pennsylvania's 19th congressional district: Energy Resources...

    Open Energy Info (EERE)

    Registered Energy Companies in Pennsylvania's 19th congressional district Carlisle Construction Materials Enginuity Energy, LLC Keystone Biofuels PaceControls LLC Soy Energy...

  3. 20th Century Reanalysis Project

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    20th Century Reanalysis Project 20th Century Reanalysis Project Key Challenges: Assimilate historical weather observations from sources as diverse as 19th century sea captains and...

  4. Texas's 19th congressional district: Energy Resources | Open...

    Open Energy Info (EERE)

    district in Texas. Registered Energy Companies in Texas's 19th congressional district Big Daddy s Biodiesel Inc Cratech Inc Horn Wind Lauren Engineers amp Constructors Levelland...

  5. Illinois' 19th congressional district: Energy Resources | Open...

    Open Energy Info (EERE)

    Energy Companies in Illinois' 19th congressional district DarkStar VI Illinois Commerce Commission Mid America Biodiesel LLC MAB National Trail Biodiesel Retrieved from...

  6. Los Alamos National Laboratory sponsors 19th annual Hazmat Challenge

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    hazardous materials response teams from New Mexico, Missouri and Nebraska test their skills in a series of graded, timed exercises at the 19th annual Hazmat Challenge. July 23,...

  7. 19th Annual conference & exposition: Global strategies for environmental issues

    SciTech Connect (OSTI)

    1994-12-31

    The 19th Annual conference and exposition on Global Strategies for Environmental Issues was held June 12-15, 1994 in New Orleans, Louisiana. This volume contains abstracts of the oral presentations. They are organized into the following sections: Environmental Management; Biodiversity/sustainable Development; Gulf Regional Issues; Environmental Ethics/Equity; NEPA Symposium; International Environmental Issues; Global Environmental Effects; and, Risk Assessment. Abstracts of poster sessions are also included.

  8. The 19th ICFA Advanced Beam Dynamics Workshop on Future Light Sources

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ICFA2000t.GIF (31362 bytes) The 19th ICFA Advanced Beam Dynamics Workshop on Future Light Sources Physics of and Science with The X-ray Free-Electron Laser (Arcidosso, Italy, September 10-15, 2000) Workshop Summary The19th Advanced ICFA Beam Dynamics Workshop on "The Physics of, and the Science with, X-Ray Free-Electron Lasers" took place in Arcidosso (Italy) from the 10th to the 15th of September, 2000. The Workshop was sponsored by the International Committee for Future Accelerators,

  9. Office of Fossil Energy Kicks Off 19th Year of Mickey Leland Energy

    Office of Environmental Management (EM)

    Fellowship | Department of Energy Fossil Energy Kicks Off 19th Year of Mickey Leland Energy Fellowship Office of Fossil Energy Kicks Off 19th Year of Mickey Leland Energy Fellowship June 27, 2014 - 9:09am Addthis Students in the Mickey Leland Energy Fellowship tour the National Energy Technology Laboratory in Morgantown, WV. Students in the Mickey Leland Energy Fellowship tour the National Energy Technology Laboratory in Morgantown, WV. What does this mean for me? "Being at DOE has

  10. 19th Topical Conference on Radio Frequency Power in Plasmas | Princeton

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Plasma Physics Lab June 1, 2011, 9:00am to June 3, 2011, 5:00pm Conference Newport, Rhode Island 19th Topical Conference on Radio Frequency Power in Plasmas Target audience Fusion scientists and engineers, plasma physicists, RF engineers, theoretical physicists and specialists of plasma-wave interaction, students. Topics of the conference Wave interaction with plasmas, such as heating, current generation, diagnostics, and confinement and profile control. RF applications in fusion devices,

  11. Students showcase research at 19th Supercomputing Challenge Expo at Los

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Alamos National Laboratory Supercomputing Challenge Expo Students showcase research at 19th Supercomputing Challenge Expo at Los Alamos National Laboratory The goal is to increase knowledge of science and computing, expose students and teachers to computers and applied mathematics, and instill enthusiasm for science. April 14, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering

  12. SUMMARY REPORT OF THE DOE DIRECT LIQUEFACTION PROCESS DEVELOPMENT CAMPAIGN OF THE LATE TWENTIETH CENTURY

    SciTech Connect (OSTI)

    F.P. Burke; S.D. Brandes; D.C. McCoy; R.A. Winschel; D. Gray; G. Tomlinson

    2001-07-01

    Following the petroleum price and supply disruptions of 1973, the U.S. government began a substantial program to fund the development of alternative fuels. Direct coal liquefaction was one of the potential routes to alternative fuels. The direct coal liquefaction program was funded at substantial levels through 1982, and at much lower levels thereafter. Those processes that were of most interest during this period were designed to produce primarily distillate fuels. By 1999, U.S. government funding for the development of direct coal liquefaction ended. Now that the end of this campaign has arrived, it is appropriate to summarize the process learnings derived from it. This report is a summary of the process learnings derived from the DOE direct coal liquefaction process development campaign of the late twentieth century. The report concentrates on those process development programs that were designed to produce primarily distillate fuels and were largely funded by DOE and its predecessors in response to the petroleum supply and price disruptions of the 1970s. The report is structured as chapters written by different authors on most of the major individual DOE-funded process development programs. The focus of the report is process learnings, as opposed to, say, fundamental coal liquefaction science or equipment design. As detailed in the overview (Chapter 2), DOE's direct coal liquefaction campaign made substantial progress in improving the process yields and the quality of the distillate product. Much of the progress was made after termination by 1983 of the major demonstration programs of the ''first generation'' (SRC-II, H-Coal, EDS) processes.

  13. High-resolution dynamically downscaled projections of precipitation in the mid and late 21st century over North America

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    none,

    2015-07-29

    This study performs high-spatial-resolution (12 km) Weather Research and Forecasting (WRF) simulations over a very large domain (7200 km × 6180 km, covering much of North America) to explore changes in mean and extreme precipitation in the mid and late 21st century under Representative Concentration Pathways 4.5 (RCP 4.5) and 8.5 (RCP 8.5). We evaluate WRF model performance for a historical simulation and future projections, applying the Community Climate System Model version 4 (CCSM4) as initial and boundary conditions with and without a bias correction. WRF simulations using boundary and initial conditions from both versions of CCSM4 show smaller biasesmore » versus evaluation data sets than does CCSM4 over western North America. WRF simulations also improve spatial details of precipitation over much of North America. However, driving the WRF with the bias-corrected CCSM4 does not always reduce the bias. WRF-projected changes in precipitation include decreasing intensity over the southwestern United States, increasing intensity over the eastern United States and most of Canada, and an increase in the number of days with heavy precipitation over much of North America. Projected precipitation changes are more evident in the late 21st century than the mid 21st century, and they are more evident under RCP 8.5 than under RCP 4.5 in the late 21st century. Uncertainties in the projected changes in precipitation due to different warming scenarios are non-negligible. Differences in summer precipitation changes between WRF and CCSM4 are significant over most of the United States.« less

  14. High-resolution dynamically downscaled projections of precipitation in the mid and late 21st century over North America

    SciTech Connect (OSTI)

    none,

    2015-07-29

    This study performs high-spatial-resolution (12 km) Weather Research and Forecasting (WRF) simulations over a very large domain (7200 km × 6180 km, covering much of North America) to explore changes in mean and extreme precipitation in the mid and late 21st century under Representative Concentration Pathways 4.5 (RCP 4.5) and 8.5 (RCP 8.5). We evaluate WRF model performance for a historical simulation and future projections, applying the Community Climate System Model version 4 (CCSM4) as initial and boundary conditions with and without a bias correction. WRF simulations using boundary and initial conditions from both versions of CCSM4 show smaller biases versus evaluation data sets than does CCSM4 over western North America. WRF simulations also improve spatial details of precipitation over much of North America. However, driving the WRF with the bias-corrected CCSM4 does not always reduce the bias. WRF-projected changes in precipitation include decreasing intensity over the southwestern United States, increasing intensity over the eastern United States and most of Canada, and an increase in the number of days with heavy precipitation over much of North America. Projected precipitation changes are more evident in the late 21st century than the mid 21st century, and they are more evident under RCP 8.5 than under RCP 4.5 in the late 21st century. Uncertainties in the projected changes in precipitation due to different warming scenarios are non-negligible. Differences in summer precipitation changes between WRF and CCSM4 are significant over most of the United States.

  15. Demonstration of LED Retrofit Lamps at an Exhibit of 19th Century Photography at the Getty Museum

    SciTech Connect (OSTI)

    Miller, Naomi J.; Druzik, Jim

    2012-03-02

    This document is a report of observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy (DOE) GATEWAY Demonstration Program. The program supports demonstrations of high-performance solid-state lighting (SSL) products in order to develop empirical data and experience with in-the-field applications of this advanced lighting technology. The DOE GATEWAY Demonstration Program focuses on providing a source of independent, third-party data for use in decision-making by lighting users and professionals; this data should be considered in combination with other information relevant to the particular site and application under examination. Each GATEWAY Demonstration compares SSL products against the incumbent technologies used in that location. Depending on available information and circumstances, the SSL product may also be compared to alternate lighting technologies. Though products demonstrated in the GATEWAY program may have been prescreened for performance, DOE does not endorse any commercial product or in any way guarantee that users will achieve the same results through use of these products. This report reviews the installation and use of LED PAR38 lamps to light a collection of toned albument photographic prints at the J. Paul Getty Museum in Malibu, California. Research results provided by the Getty Conservation Institute are incorporated and discussed.

  16. Demonstration Assessment of Light-Emitting Diode (LED) Retrofit Lamps at an Exhibit of 19th Century Photography at the Getty Museum

    SciTech Connect (OSTI)

    Miller, N. J.; Druzik, J. R.

    2012-03-01

    GATEWAY program report on a demonstration of LED retrofit lamps at the J. Paul Getty Museum in Malibu, CA.

  17. Borehole temperatures and a baseline for 20th-century global warming estimates

    SciTech Connect (OSTI)

    Harris, R.N.; Chapman, D.S.

    1997-03-14

    Lack of a 19th-century baseline temperature against which 20th-century warming can be referenced constitutes a deficiency in understanding recent climate change. Combination of borehole temperature profiles, which contain a memory of surface temperature changes in previous centuries, with the meteorologicl archive of surface air temperatures can provide a 19th-century baseline temperature tied to the current observational record. A test case in Utah, where boreholes are interspersed with meteorological stations belonging to the Historical Climatological network, Yields a noise reduction in estimates of 20th-century warming and a baseline temperature that is 0.6{degrees} {+-} 0.1{degrees}C below the 1951 to 1970 mean temperature for the region. 22 refs., 3 figs., 1 tab.

  18. 19th Annual HAZMAT Challenge

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Past Challenge scenarios have included drug laboratory or chemical hazard identification, a complex valve tree, confined space rescue, compressed gas leaks, a leaking rail car ...

  19. ALS Scientists Patent Technique To Dramatically Advance Grating-Based

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy Print Tuesday, 29 January 2013 16:28 Gratings - optical elements used to separate light in spectroscopy applications - have been in use since the early 19th century. Developments in the late 19th century led to the manufacture of gratings by highly precise ruling with a diamond onto a metallic surface. Many gratings

  20. ALS Scientists Patent Technique To Dramatically Advance Grating-Based

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy Print Gratings - optical elements used to separate light in spectroscopy applications - have been in use since the early 19th century. Developments in the late 19th century led to the manufacture of gratings by highly precise ruling with a diamond onto a metallic surface. Many gratings are still produced today using

  1. Florida's 19th congressional district: Energy Resources | Open...

    Open Energy Info (EERE)

    Inc Ener1 Inc EnerFuel Energy 5 0 Energy 5 0 LLC Enerize Corp Hydro Alternative Energy LPG Electrical, Inc NanoEner Technologies Power Tree Corp RAM Capital Management Group...

  2. Pi Day of the Century

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Pi Day of the Century Pi Day of the Century WHEN: Mar 14, 2015 11:00 AM - 1:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, New Mexico, USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Pi Event Description A special day celebrating this once-in-a-century occasion. Pi Day is an annual celebration commemorating the mathematical constant π, a never-ending, transcendental number representing the ratio of a circle's circumference to its

  3. Century Asset Management | Open Energy Information

    Open Energy Info (EERE)

    Century Asset Management Jump to: navigation, search Name: Century Asset Management Place: Sydney, New South Wales, Australia Zip: 2000 Sector: Solar, Vehicles Product: String...

  4. Solar Century Holdings Solarcentury | Open Energy Information

    Open Energy Info (EERE)

    Solar Century Holdings Solarcentury Jump to: navigation, search Name: Solar Century Holdings (Solarcentury) Place: London, Greater London, United Kingdom Zip: SE1 7AB Sector:...

  5. Pi Day of the Century

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Pi Event Description A special day celebrating this once-in-a-century occasion. Pi Day is an annual celebration...

  6. Fourth Fridays - Museum Open Late

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fourth Fridays - Museum Open Late Fourth Fridays - Museum Open Late WHEN: Oct 23, 2015 10:00 AM - 6:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544 USA CONTACT: Jessica Privette 505 667-0375 CATEGORY: Bradbury INTERNAL: Calendar Login Fourth Fridays in Downtown Los Alamos Event Description The museum will be open late until 6 p.m. every Fourth Friday offering extended access to exhibits, special programming, and activities. The Los Alamos Creative District is

  7. Fourth Fridays - Museum Open Late

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Fourth Fridays - Museum Open Late Fourth Fridays - Museum Open Late WHEN: Jan 22, 2016 10:00 AM - 6:00 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544 USA CONTACT: Linda Anderman (505) 665-9196 CATEGORY: Bradbury INTERNAL: Calendar Login Fourth Fridays in Downtown Los Alamos Event Description The museum will be open late until 6 p.m. every Fourth Friday offering extended access to exhibits, special programming, and activities. The Los Alamos Creative District is

  8. Fourth Fridays - Museum Open Late

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Science Museum is participating by staying open late until 6:00 p.m. offering access to exhibits and special activities for all ages. Admission is free and open to the public...

  9. ALS Capabilities Reveal How Like Can Attract Like

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Capabilities Reveal How Like Can Attract Like Print A Berkeley Lab research team working at the ALS has observed an unusual pairing that seems to go against a universal scientific truth-that opposite charges attract and like charges repel. Led by Berkeley Lab chemist Richard Saykally and theorist David Prendergast, researchers demonstrated that, when hydrated in water, positively charged ions (cations) can actually pair up with one another. A New Law of Water Affinities Late 19th century

  10. ALS Capabilities Reveal How Like Can Attract Like

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Capabilities Reveal How Like Can Attract Like Print A Berkeley Lab research team working at the ALS has observed an unusual pairing that seems to go against a universal scientific truth-that opposite charges attract and like charges repel. Led by Berkeley Lab chemist Richard Saykally and theorist David Prendergast, researchers demonstrated that, when hydrated in water, positively charged ions (cations) can actually pair up with one another. A New Law of Water Affinities Late 19th century

  11. ALS Capabilities Reveal How Like Can Attract Like

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Capabilities Reveal How Like Can Attract Like Print A Berkeley Lab research team working at the ALS has observed an unusual pairing that seems to go against a universal scientific truth-that opposite charges attract and like charges repel. Led by Berkeley Lab chemist Richard Saykally and theorist David Prendergast, researchers demonstrated that, when hydrated in water, positively charged ions (cations) can actually pair up with one another. A New Law of Water Affinities Late 19th century

  12. ALS Capabilities Reveal How Like Can Attract Like

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Capabilities Reveal How Like Can Attract Like Print A Berkeley Lab research team working at the ALS has observed an unusual pairing that seems to go against a universal scientific truth-that opposite charges attract and like charges repel. Led by Berkeley Lab chemist Richard Saykally and theorist David Prendergast, researchers demonstrated that, when hydrated in water, positively charged ions (cations) can actually pair up with one another. A New Law of Water Affinities Late 19th century

  13. ALS Capabilities Reveal How Like Can Attract Like

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Capabilities Reveal How Like Can Attract Like Print A Berkeley Lab research team working at the ALS has observed an unusual pairing that seems to go against a universal scientific truth-that opposite charges attract and like charges repel. Led by Berkeley Lab chemist Richard Saykally and theorist David Prendergast, researchers demonstrated that, when hydrated in water, positively charged ions (cations) can actually pair up with one another. A New Law of Water Affinities Late 19th century

  14. ALS Capabilities Reveal How Like Can Attract Like

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Capabilities Reveal How Like Can Attract Like Print A Berkeley Lab research team working at the ALS has observed an unusual pairing that seems to go against a universal scientific truth-that opposite charges attract and like charges repel. Led by Berkeley Lab chemist Richard Saykally and theorist David Prendergast, researchers demonstrated that, when hydrated in water, positively charged ions (cations) can actually pair up with one another. A New Law of Water Affinities Late 19th century

  15. ALS Capabilities Reveal How Like Can Attract Like

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALS Capabilities Reveal How Like Can Attract Like Print A Berkeley Lab research team working at the ALS has observed an unusual pairing that seems to go against a universal scientific truth-that opposite charges attract and like charges repel. Led by Berkeley Lab chemist Richard Saykally and theorist David Prendergast, researchers demonstrated that, when hydrated in water, positively charged ions (cations) can actually pair up with one another. A New Law of Water Affinities Late 19th century

  16. Vehicle Technologies Office: 21st Century Truck Technical Goals |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 1st Century Truck Technical Goals Vehicle Technologies Office: 21st Century Truck Technical Goals Vehicle Technologies Office: 21st Century Truck Technical Goals Vehicle Technologies Office: 21st Century Truck Technical Goals Vehicle Technologies Office: 21st Century Truck Technical Goals Vehicle Technologies Office: 21st Century Truck Technical Goals Improving fuel efficiency in heavy trucks depends on a number of factors associated with the truck and its components.

  17. 21st century Green Solutions LLC | Open Energy Information

    Open Energy Info (EERE)

    21st century Green Solutions LLC Jump to: navigation, search Name: 21st century Green Solutions, LLC Place: Grand Blanc, Michigan Zip: 48439 Sector: Wind energy Product: Exclusive...

  18. Office of Fossil Energy Kicks Off 19th Year of Mickey Leland...

    Office of Environmental Management (EM)

    The students are science, technology, engineering, and mathematics (STEM) majors ... experiences for students studying science, technology, engineering and mathematics. ...

  19. High Temperature Materials Laboratory User Program: 19th Annual Report, October 1, 2005 - September 30, 2006

    SciTech Connect (OSTI)

    Pasto, Arvid

    2007-08-01

    Annual Report contains overview of the High Temperature Materials Laboratory User Program and includes selected highlights of user activities for FY2006. Report is submitted to individuals within sponsoring DOE agency and to other interested individuals.

  20. Your're Invited: Join Our Supplier Outreach Event on August 19th

    Broader source: Energy.gov [DOE]

    On August 19, 2011, the Department of Energy will be co-sponsoring a suppliers outreach event for suppliers who wish to provide services to Service Disabled Veteran Owned Businesses. This event,...

  1. 20th Century Reanalysis Project Featured in HPCWire Podcast

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    20th Century 20th Century Reanalysis Project Featured in HPCWire Podcast March 11, 2014 earthreanalysis The 20th Century Reanalysis Project is generating a six-hourly, four-dimensional global atmospheric dataset spanning 1871 to 2011 to place current atmospheric circulation patterns into a historical perspective. Long-time NERSC user Dr. Gil Compo and the 20th Century Reanalysis project were featured March 10 in an HPCWire podcast, "Powering the 20th Century Weather Reanalysis

  2. Kilauea East Rift Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    Some historical records also report that King Kalkaua aspired to produce power from geothermal energy resources in the 19th century.6 Modern electricity production...

  3. Solid Cold - D

    Office of Scientific and Technical Information (OSTI)

    D. Einstein's solution illustrated The problem with 19th-century atomic theory was the ... to the absolute temperature, as earlier theory implied, though if the temperature were ...

  4. Complex Systems: Science for the 21st Century (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    Complex Systems: Science for the 21st Century Citation Details In-Document Search Title: Complex Systems: Science for the 21st Century You are accessing a document from the ...

  5. Flexibility in 21st Century Power Systems

    SciTech Connect (OSTI)

    Cochran, J.; Miller, M.; Zinaman, O.; Milligan, M.; Arent, D.; Palmintier, B.; O'Malley, M.; Mueller, S.; Lannoye, E.; Tuohy, A.; Kujala, B.; Sommer, M.; Holttinen, H.; Kiviluoma, J.; Soonee, S. K.

    2014-05-01

    Flexibility of operation--the ability of a power system to respond to change in demand and supply--is a characteristic of all power systems. Flexibility is especially prized in twenty-first century power systems, with higher levels of grid-connected variable renewable energy (primarily, wind and solar). This paper summarizes the analytic frameworks that have emerged to measure this characteristic and distills key principles of flexibility for policy makers.

  6. Petrography of late cenozoic sediments, Raft River geothermal...

    Open Energy Info (EERE)

    of late cenozoic sediments, Raft River geothermal field, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Petrography of late...

  7. Science for the 21st Century

    SciTech Connect (OSTI)

    Not Available

    2004-07-01

    The Federal government plays a key role in supporting the country's science infrastructure, a national treasure, and scientific research, an investment in our future. Scientific discoveries transform the way we think about our universe and ourselves, from the vastness of space to molecular-level biology. In innovations such as drugs derived through biotechnology and new communications technologies we see constant evidence of the power of science to improve lives and address national challenges. We had not yet learned to fly at the dawn of the 20th century, and could not have imagined the amazing 20th century inventions that we now take for granted. As we move into the 21st century, we eagerly anticipate new insights, discoveries, and technologies that will inspire and enrich us for many decades to come. This report presents the critical responsibilities of our Federal science enterprise and the actions taken by the Federal research agencies, through the National Science and Technology Council, to align our programs with scientific opportunity and with national needs. The many examples show how our science enterprise has responded to the President's priorities for homeland and national security, economic growth, health research, and the environment. In addition, we show how the science agencies work together to set priorities; coordinate related research programs; leverage investments to promote discovery, translate science into national benefits, and sustain the national research enterprise; and promote excellence in math and science education and work force development.

  8. Federal laboratories for the 21st century

    SciTech Connect (OSTI)

    Gover, J.; Huray, P.G.

    1998-04-01

    Federal laboratories have successfully filled many roles for the public; however, as the 21st Century nears it is time to rethink and reevaluate how Federal laboratories can better support the public and identify new roles for this class of publicly-owned institutions. The productivity of the Federal laboratory system can be increased by making use of public outcome metrics, by benchmarking laboratories, by deploying innovative new governance models, by partnerships of Federal laboratories with universities and companies, and by accelerating the transition of federal laboratories and the agencies that own them into learning organizations. The authors must learn how government-owned laboratories in other countries serve their public. Taiwan`s government laboratory, Industrial Technology Research Institute, has been particularly successful in promoting economic growth. It is time to stop operating Federal laboratories as monopoly institutions; therefore, competition between Federal laboratories must be promoted. Additionally, Federal laboratories capable of addressing emerging 21st century public problems must be identified and given the challenge of serving the public in innovative new ways. Increased investment in case studies of particular programs at Federal laboratories and research on the public utility of a system of Federal laboratories could lead to increased productivity of laboratories. Elimination of risk-averse Federal laboratory and agency bureaucracies would also have dramatic impact on the productivity of the Federal laboratory system. Appropriately used, the US Federal laboratory system offers the US an innovative advantage over other nations.

  9. Century Concord Wind Power Investment Ltd | Open Energy Information

    Open Energy Info (EERE)

    Concord Wind Power Investment Ltd Jump to: navigation, search Name: Century Concord Wind Power Investment Ltd Place: Beijing, Beijing Municipality, China Sector: Wind energy...

  10. Beijing Jingyi Century Automatic Equipment Co Ltd | Open Energy...

    Open Energy Info (EERE)

    beijing Jingyi Century Automatic Equipment Co Ltd Place: Beijing Municipality, China Zip: 100079 Product: A Chinese equipment manufacturer provides monosilicon ingot puller and...

  11. The 21st Century Truck Partnership | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    December 2006 Roadmap and Technical White Papers for 21st Century Truck Partnership Vehicle Technologies Office Merit Review 2015: Medium and Heavy-Duty Vehicle Field Evaluations

  12. Food and Fuel for the 21st Century

    Broader source: Energy.gov [DOE]

    Food and Fuel for the 21st Century held its annual symposium March 12–13, 2015, at Atkinson Hall, University of California San Diego.

  13. Laboratories for the 21st Century Case Studies

    Broader source: Energy.gov [DOE]

    These case studies feature examples of energy-efficient laboratories for the 21st century. The Featured Concepts Table outlines technologies covered in each case study.

  14. MIT- Center for 21st Century Energy | Open Energy Information

    Open Energy Info (EERE)

    Name: MIT- Center for 21st Century Energy Address: 77 Massachusetts Avenue Place: Cambridge, Massachusetts Zip: 02139 Region: Greater Boston Area Website: web.mit.educ21ce...

  15. 21st Century Truck Partnership Roadmap Roadmap and Technical...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Roadmap Roadmap and Technical White Papers - 21CTP-0003, December 2006 21st Century Truck Partnership Roadmap Roadmap and Technical White Papers - 21CTP-0003, December 2006 Report ...

  16. 21st Century Truck Partnership - Roadmap and Technical White...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    - Roadmap and Technical White Papers Appendix of Supporting Information - 21CTP-0003, December 2006 21st Century Truck Partnership - Roadmap and Technical White Papers Appendix of ...

  17. Half a Century of Physical Review Letters

    ScienceCinema (OSTI)

    Garisto, Robert

    2010-01-08

    Fifty years ago, Sam Goudsmit started an experiment: the journal Physical Review Letters.  Since 1958, the experiment has thrived. PRL has gone through many changes, published many important papers, and become a leader in international scientific publication.  I will trace the rise of PRL from its early 20th century roots as "Letters to the Editor," through changes in editorial process and advents of new technology. Along the way I'll show what has gone on behind the scenes, and give a glimpse of our plans for the future.  I'll also give some advice to would-be authors and referees, illustrated with interesting correspondence we've received.

  18. Acoustic emission: The first half century

    SciTech Connect (OSTI)

    Drouillard, T.F.

    1994-08-01

    The technology of acoustic emission (AE) is approaching the half century mark, having had its beginning in 1950 with the work of Joseph Kaiser. During the 1950s and 1960s researchers delved into the fundamentals of acoustic emission, developed instrumentation specifically for AE, and characterized the AE behavior of many materials. AE was starting to be recognized for its unique capabilities as an NDT method for monitoring dynamic processes. In the decade of the 1970s research activities became more coordinated and directed with the formation of the working groups, and its use as an NDT method continued to increase for industrial applications. In the 1980s the computer became a basic component for both instrumentation and data analysis, and today it has sparked a resurgence of opportunities for research and development. Today we are seeing a transition to waveform-based AE analysis and a shift in AE activities with more emphasis on applications than on research. From the beginning, we have been fortunate to have had so many dedicated savants with different fields of expertise contribute in a collective way to bring AE to a mature, fully developed technology and leave a legacy of knowledge recorded in its literature. AE literature has been a key indicator of the amount of activity, the proportion of research to application, the emphasis on what was of current interest, and the direction AE has taken. The following is a brief survey of the history of acoustic emission with emphasis on development of the infrastructure over the past half century.

  19. Late-time cosmological phase transitions

    SciTech Connect (OSTI)

    Schramm, D.N. Fermi National Accelerator Lab., Batavia, IL )

    1990-11-01

    It is shown that the potential galaxy formation and large-scale structure problems of objects existing at high redshifts (Z {approx gt} 5), structures existing on scales of 100M pc as well as velocity flows on such scales, and minimal microwave anisotropies ({Delta}T/T) {approx lt} 10{sup {minus}5} can be solved if the seeds needed to generate structure form in a vacuum phase transition after decoupling. It is argued that the basic physics of such a phase transition is no more exotic than that utilized in the more traditional GUT scale phase transitions, and that, just as in the GUT case, significant random gaussian fluctuations and/or topological defects can form. Scale lengths of {approximately}100M pc for large-scale structure as well as {approximately}1 M pc for galaxy formation occur naturally. Possible support for new physics that might be associated with such a late-time transition comes from the preliminary results of the SAGE solar neutrino experiment, implying neutrino flavor mixing with values similar to those required for a late-time transition. It is also noted that a see-saw model for the neutrino masses might also imply a tau neutrino mass that is an ideal hot dark matter candidate. However, in general either hot or cold dark matter can be consistent with a late-time transition. 47 refs., 2 figs.

  20. VERY LATE PHOTOMETRY OF SN 2011fe

    SciTech Connect (OSTI)

    Kerzendorf, W. E. [Department of Astronomy and Astrophysics, University of Toronto, 50 Saint George Street, Toronto, ON M5S 3H4 (Canada); Taubenberger, S.; Seitenzahl, I. R.; Ruiter, A. J., E-mail: wkerzendorf@gmail.com [Max-Planck-Institut fr Astrophysik, Karl-Schwarzschild-Strae 1, D-85748 Garching (Germany)

    2014-12-01

    The Type Ia supernova SN 2011fe is one of the closest supernovae of the past decades. Due to its proximity and low dust extinction, this object provides a very rare opportunity to study the extremely late time evolution (>900 days) of thermonuclear supernovae. In this Letter, we present our photometric data of SN 2011fe taken at an unprecedented late epoch of ?930 days with GMOS-N mounted on the Gemini North telescope (g=23.43 0.28, r=24.14 0.14, i=23.91 0.18, and z=23.90 0.17) to study the energy production and retention in the ejecta of SN 2011fe. Together with previous measurements by other groups, our result suggests that the optical supernova light curve can still be explained by the full thermalization of the decay positrons of {sup 56}Co. This is in spite of theoretical predicted effects (e.g., infrared catastrophe, positron escape, and dust) that advocate a substantial energy redistribution and/or loss via various processes that result in a more rapid dimming at these very late epochs.

  1. Technical bases DWPF Late Washing Facility

    SciTech Connect (OSTI)

    Fish, D.L.; Landon, L.F.

    1992-08-10

    A task force recommended that the technical feasibility of a Late Wash' facility be assessed [1]. In this facility, each batch of tetraphenylborate slurry from Tank 49 would be given a final wash to reduce the concentrations of nitrite and radiolysis products to acceptable levels. Laboratory-scale studies have demonstrated that d the nitrite content of the slurry fed to DWPF is reduced to 0.01 M or less (and at least a 4X reduction in concentration of the soluble species is attained), (1) the need for HAN during hydrolysis is eliminated (eliminating the production of ammonium ion during hydrolysis), (2) hydrolysis may be done with a catalyst concentration that will not exceed the copper solubility in glass and (3) the non-polar organic production during hydrolysis is significantly reduced. The first phase of an aggressive research and development program has been completed and all test results obtained to date support the technical feasibility of Late Washing. Paralleling this research and development effort is an aggressive design study directed by DWPF to scope and cost retrofitting the Auxiliary Pump Pit (APP) to enable performing a final wash of each batch of precipitate slurry before R is transferred into the DWPF Soft Processing Cell (SPC). An initial technical bases for the Late Wash Facility was transmitted to DWPF on June 15, 1992. Research and development activities are continuing directed principally at optimization of the cross-f low fitter decontamination methodology and pilot-scale validation of the recommended benzene stripping metodology.

  2. Roadmap and Technical White Papers for 21st Century Truck Partnership...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Roadmap and Technical White Papers for 21st Century Truck Partnership Roadmap and Technical White Papers for 21st Century Truck Partnership Roadmap document for 21st Century Truck ...

  3. Beijing Fuyuan Century Fuel Cell Power Co Ltd FCFCP | Open Energy...

    Open Energy Info (EERE)

    Fuyuan Century Fuel Cell Power Co Ltd FCFCP Jump to: navigation, search Name: Beijing Fuyuan Century Fuel Cell Power Co Ltd (FCFCP) Place: Beijing, Beijing Municipality, China Zip:...

  4. National Academy of Sciences Reviews 21st Century Truck Partnership...

    Broader source: Energy.gov (indexed) [DOE]

    For more than 15 years, the 21st Century Truck Partnership (21CTP) has been facilitating ... aims to enable America's medium and heavy-duty vehicles to safely and cost-effectively ...

  5. Vehicle Technologies Office: 21st Century Truck Partners

    Broader source: Energy.gov [DOE]

    The 21st Century Truck Partnership is an industry-government collaboration among heavy-duty engine manufacturers, medium-duty and heavy-duty truck and bus manufacturers, heavy-duty hybrid...

  6. June 13, 2011: Building the 21st Century Grid

    Broader source: Energy.gov [DOE]

    Secretary Chu participates in an event at the White House on "Building the 21st Century Grid." At the event, the Administration announces a number of new public- and private-sector initiatives...

  7. 20th Century Reanalysis Project Featured in HPCWire Podcast

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    dataset spanning 1871 to 2011 to place current atmospheric circulation patterns into a historical perspective. Long-time NERSC user Dr. Gil Compo and the 20th Century Reanalysis...

  8. 21st Century Truck Partnership - Roadmap and Technical White Papers

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Appendix of Supporting Information - 21CTP-0003, December 2006 | Department of Energy - Roadmap and Technical White Papers Appendix of Supporting Information - 21CTP-0003, December 2006 21st Century Truck Partnership - Roadmap and Technical White Papers Appendix of Supporting Information - 21CTP-0003, December 2006 Appendix containing supporting information to the 21st Century Partnership's Roadmap and Technical White Papers (21CTP-003). PDF icon 21ctp_roadmap_appendix_2007.pdf More

  9. National Lab Celebrates a Century of Science | Department of Energy

    Energy Savers [EERE]

    Lab Celebrates a Century of Science National Lab Celebrates a Century of Science October 13, 2010 - 1:00pm Addthis Washington, DC - On the occasion of its 100th anniversary, the Office of Fossil Energy's National Energy Technology Laboratory (NETL) today launched its Regional University Alliance (NETL-RUA) and dedicated the Energy Challenge, an interactive energy exhibit for kids, with an event at the Carnegie Science Center. Energy Challenge is an interactive kiosk that quizzes players on

  10. Building a 21st Century Electric Grid | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    21st Century Electric Grid Building a 21st Century Electric Grid June 7, 2013 - 4:22pm Addthis Photo courtesy of the Pacific Northwest National Laboratory. Photo courtesy of the Pacific Northwest National Laboratory. Dr. Ernest Moniz Dr. Ernest Moniz Secretary of Energy Nancy Sutley Chair, White House Council on Environmental Quality Sally Jewell Secretary, U.S. Department of the Interior Tom Vilsack Secretary, U.S. Department of Agriculture Editor's note: This article has been cross-posted from

  11. Measurement and modeling of advanced coal conversion processes. 19th quarterly report, April 1, 1991--June 30, 1991

    SciTech Connect (OSTI)

    Solomon, P.R.; Serio, M.A.; Hamblen, D.G.; Smoot, L.D.; Brewster, B.S.

    1991-09-25

    The objectives of this study are to establish the mechanisms and rates of basic steps in coal conversion processes, to integrate and incorporate this information into comprehensive computer models for coal conversion processes, to evaluate these models and to apply them to gasification, mild gasification and combustion in heat engines. (VC)

  12. Transforming Power Systems; 21st Century Power Partnership

    SciTech Connect (OSTI)

    2015-05-20

    The 21st Century Power Partnership - a multilateral effort of the Clean Energy Ministerial - serves as a platform for public-private collaboration to advance integrated solutions for the large-scale deployment of renewable energy in combination with deep energy ef?ciency and smart grid solutions.

  13. Probing Late Neutrino Mass Properties With SupernovaNeutrinos...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Probing Late Neutrino Mass Properties With SupernovaNeutrinos Citation ... DOE Contract Number: DE-AC02-05CH11231 Resource Type: Journal Article Resource Relation: ...

  14. Renewable Energy Policy Network for the 21st Century (REN21)...

    Open Energy Info (EERE)

    Network for the 21st Century (REN21) Jump to: navigation, search Logo: Renewable Energy Policy Network for the 21st Century (REN21) Name: Renewable Energy Policy Network for the...

  15. Characterization of a Messer The late-Medieval single-edged sword of Central Europe

    SciTech Connect (OSTI)

    Fajfar, Peter; Medved, Joef; Klan?nik, Grega; Lazar, Toma; Ne?emer, Marijan; Mrvar, Primo

    2013-12-15

    Metallurgical characterization of a sword blade fragments dating from the second half of the 15th century found in central Slovenia was performed in order to determine its chemical composition, microstructure, microhardness, and to obtain insight into the methods of manufacture of a late-medieval Messer sword. As the artefact was broken, examinations were limited to six very small fragments that were allowed to be removed from the cutting edge, core and the back of the blade. Light optical microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, energy dispersive X-ray fluorescence spectrometry, differential scanning calorimetry, thermodynamics approach and Vickers micro-hardness tests were employed to analyze the microstructure and mechanical properties. The results show that the sword was manufactured from a single wrought iron billet. The surface of the sword was carburized. No evidence of quenching was found. The ferritic microstructure is concentrated in the core, and the pearlitic in the outer layer of the blade. All metal fragments contained non-metallic inclusions that were derived mostly from slag and some from hammer scale. - Highlights: A metallurgical characterization of a medieval sword blade has been performed. The carbon content decreased from the surface to the core of the blade. The dominant microstructure in the outer layer is pearlite and in the core is ferrite. The presence of lump shaped and elongated non-metallic inclusions was observed. The sword was manufactured from a single wrought iron billet.

  16. Appendix of Supporting Information for the 21st Century Truck Technology Partnership

    SciTech Connect (OSTI)

    2009-01-18

    Appendix contains supporting information to the 21st Century Truck Partnership's Roadmap and Technical White Papers (21CTP-003)

  17. DOE pollution prevention in the 21st century

    SciTech Connect (OSTI)

    1996-10-01

    This document presents abstracts of the topics covered in the DOE Pollution Prevention in the 21st Century conference held July 9-11, 1996. These topics include: model facilities; Federal/NEPA/stake- holders; microchemistry; solvents and reduction; education and outreach; return on investments; energy management; decontamination and decommissioning; planning and regulations; environmental restoration; recycling; affirmative procurement in the executive branch; construction and demolition; materials exchange; and ISO 2000.

  18. Bedford Farmhouse High Performance Retrofit Prototype

    SciTech Connect (OSTI)

    2010-04-26

    In this case study, Building Science Corporation partnered with Habitat for Humanity of Greater Lowell on a retrofit of a mid-19th century farmhouse into affordable housing meeting Building America performance standards.

  19. Electric vehicles | Open Energy Information

    Open Energy Info (EERE)

    existence in the mid-19th century, when electricity was among the preferred methods for motor vehicle propulsion, providing a level of comfort and ease of operation that could not...

  20. Flexibility in 21st Century Power Systems (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-10-01

    Flexibility of operation--the ability of a power system to respond to change in demand and supply--is a characteristic of all power systems. Flexibility is especially prized in twenty-first century power systems, with higher levels of grid-connected variable renewable energy (primarily, wind and solar). Sources of flexibility exist--and can be enhanced--across all of the physical and institutional elements of the power system, including system operations and markets, demand side resources and storage; generation; and transmission networks. Accessing flexibility requires significant planning to optimize investments and ensure that both short- and long-time power system requirements are met.

  1. Mexico and the 21st Century Power Partnership (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-02-01

    The 21st Century Power Partnership's program in Mexico (21CPP Mexico) is one initiative of the Clean Energy Ministerial, carried out in cooperation with government and local stakeholders, drawing upon an international community of power system expertise. The overall goal of this program is to support Mexico's power system transformation by accelerating the transition to a reliable, financially robust, and low-carbon system. 21CPP Mexico activities focus on achieving positive outcomes for all participants, especially addressing critical questions and challenges facing policymakers, regulators, and system operators. In support of this goal, 21CPP Mexico taps into deep networks of expertise and professional connections.

  2. Radioactive demonstration of the late wash'' Precipitate Hydrolysis Process

    SciTech Connect (OSTI)

    Bibler, N.E.; Ferrara, D.M.; Ha, B.C.

    1992-06-30

    This report presents results of the radioactive demonstration of the DWPF Precipitate Hydrolysis Process as it would occur in the late wash'' flowsheet in the absence of hydroxylamine nitrate. Radioactive precipitate containing Cs-137 from the April, 1983, in-tank precipitation demonstration in Tank 48 was used for these tests.

  3. Radioactive demonstration of the ``late wash`` Precipitate Hydrolysis Process

    SciTech Connect (OSTI)

    Bibler, N.E.; Ferrara, D.M.; Ha, B.C.

    1992-06-30

    This report presents results of the radioactive demonstration of the DWPF Precipitate Hydrolysis Process as it would occur in the ``late wash`` flowsheet in the absence of hydroxylamine nitrate. Radioactive precipitate containing Cs-137 from the April, 1983, in-tank precipitation demonstration in Tank 48 was used for these tests.

  4. 21st Century jobs initiative - building the foundations for a 21st Century economy. Final main report

    SciTech Connect (OSTI)

    1995-11-01

    The 21st Century Jobs Initiative has been launched in the context of new realities in Washington, D.C., rapid restructuring of the US economy and accelerating changes in the makeup of the East Tennessee economy driven by these and other external economic forces. Continuing downward pressure on Federal budgets for programs that support three key institutions in the region - DOE`s Oak Ridge complex, the Tennessee Valley Authority and research programs of the University of Tennessee - are especially threatening to the region. With a large part of its economy dependent on Federal spending, the area is at risk of troublesome impacts that could ripple out from the Oak Ridge and Knoxville home of these institutions throughout the entire 15-county {open_quotes}Resource Valley.{close_quotes} As these economic forces play out in the region`s economy, important questions arise. How will East Tennessee {open_quotes}earn its living{close_quotes} in the future if the Federal government role in the economy shrinks? What kind of new industries will be formed to replace those at risk due to Federal cutbacks and economic restructuring? Where will the jobs come from for the next generation of job seekers? These are among the questions driving the 21st Century Jobs Initiative, an action-oriented program designed and implemented by local leaders in response to the economic challenges facing East Tennessee. Fortunately, the region`s economy is strong today. Unemployment is at near record lows in most counties. Moreover, leaders are increasingly aware of the threats on the horizon and are already moving to action. And the impacts from the forces at work on the economy will probably come slowly, over the next decade or so. Based on economic research and input from local leaders knowledgeable about the economy, the 21st Century Jobs Initiative has set forth a strategic economic development plan for the region.

  5. Persisting cold extremes under 21st-century warming scenarios

    SciTech Connect (OSTI)

    Kodra, Evan A; Steinhaeuser, Karsten J K; Ganguly, Auroop R

    2011-01-01

    Analyses of climate model simulations and observations reveal that extreme cold events are likely to persist across each land-continent even under 21st-century warming scenarios. The grid-based intensity, duration and frequency of cold extreme events are calculated annually through three indices: the coldest annual consecutive three-day average of daily maximum temperature, the annual maximum of consecutive frost days, and the total number of frost days. Nine global climate models forced with a moderate greenhouse-gas emissions scenario compares the indices over 2091 2100 versus 1991 2000. The credibility of model-simulated cold extremes is evaluated through both bias scores relative to reanalysis data in the past and multi-model agreement in the future. The number of times the value of each annual index in 2091 2100 exceeds the decadal average of the corresponding index in 1991 2000 is counted. The results indicate that intensity and duration of grid-based cold extremes, when viewed as a global total, will often be as severe as current typical conditions in many regions, but the corresponding frequency does not show this persistence. While the models agree on the projected persistence of cold extremes in terms of global counts, regionally, inter-model variability and disparity in model performance tends to dominate. Our findings suggest that, despite a general warming trend, regional preparedness for extreme cold events cannot be compromised even towards the end of the century.

  6. Transforming Epidemiology for 21st Century Medicine and Public Health

    SciTech Connect (OSTI)

    Khoury, Muin J; Lam, Tram Kim; Ioannidis, John; Hartge, Patricia; Spitz, Margaret R.; Buring, Julie E.; Chanock, Stephen J.; Tourassi, Georgia; Zauber, Ann; Schully, Sheri D

    2013-01-01

    n 2012, the National Cancer Institute (NCI) engaged the scientific community to provide a vision for cancer epidemiology in the 21st century. Eight overarching thematic recommendations, with proposed corresponding actions for consideration by funding agencies, professional societies, and the research community emerged from the collective intellectual discourse. The themes are (i) extending the reach of epidemiology beyond discovery and etiologic research to include multilevel analysis, intervention evaluation, implementation, and outcomes research; (ii) transforming the practice of epidemiology by moving toward more access and sharing of protocols, data, metadata, and specimens to foster collaboration, to ensure reproducibility and replication, and accelerate translation; (iii) expanding cohort studies to collect exposure, clinical, and other information across the life course and examining multiple health-related endpoints; (iv) developing and validating reliable methods and technologies to quantify exposures and outcomes on a massive scale, and to assess concomitantly the role of multiple factors in complex diseases; (v) integrating big data science into the practice of epidemiology; (vi) expanding knowledge integration to drive research, policy, and practice; (vii) transforming training of 21st century epidemiologists to address interdisciplinary and translational research; and (viii) optimizing the use of resources and infrastructure for epidemiologic studies. These recommendations can transform cancer epidemiology and the field of epidemiology, in general, by enhancing transparency, interdisciplinary collaboration, and strategic applications of new technologies. They should lay a strong scientific foundation for accelerated translation of scientific discoveries into individual and population health benefits.

  7. 21st Century Truck Partnership Roadmap Roadmap and Technical White Papers -

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    21CTP-0003, December 2006 | Department of Energy Roadmap Roadmap and Technical White Papers - 21CTP-0003, December 2006 21st Century Truck Partnership Roadmap Roadmap and Technical White Papers - 21CTP-0003, December 2006 Report on specific technology goals that will reduce fuel usage and emissions while increasing heavy vehicle safety. PDF icon 21ctp_roadmap_2007.pdf More Documents & Publications Roadmap and Technical White Papers for 21st Century Truck Partnership The 21st Century

  8. EAC Presentation on the Policy Framework for a 21st Century Grid...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    EAC Presentation on the Policy Framework for a 21st Century Grid: Enabling our Secure Energy Future (July 12, 2011) Presentation by Assistant Secretary Patricia Hoffman of the ...

  9. Roadmap and Technical White Papers for 21st Century Truck Partnership

    Broader source: Energy.gov [DOE]

    Roadmap document for 21st Century Truck Partnership developed to pursue detailed goals for engine systems, heavy-duty hybrids, parasitic losses, idle reduction, and safety,

  10. Argonne OutLoud: Renewing Our Grid - Power for the 21st Century (Sept. 19,

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2013) | Argonne National Laboratory Renewing Our Grid - Power for the 21st Century (Sept. 19, 2013) Share Guenter Conzelmann

  11. Technical bases DWPF Late Washing Facility. Revision 1

    SciTech Connect (OSTI)

    Fish, D.L.; Landon, L.F.

    1992-08-10

    A task force recommended that the technical feasibility of a ``Late Wash` facility be assessed [1]. In this facility, each batch of tetraphenylborate slurry from Tank 49 would be given a final wash to reduce the concentrations of nitrite and radiolysis products to acceptable levels. Laboratory-scale studies have demonstrated that d the nitrite content of the slurry fed to DWPF is reduced to 0.01 M or less (and at least a 4X reduction in concentration of the soluble species is attained), (1) the need for HAN during hydrolysis is eliminated (eliminating the production of ammonium ion during hydrolysis), (2) hydrolysis may be done with a catalyst concentration that will not exceed the copper solubility in glass and (3) the non-polar organic production during hydrolysis is significantly reduced. The first phase of an aggressive research and development program has been completed and all test results obtained to date support the technical feasibility of Late Washing. Paralleling this research and development effort is an aggressive design study directed by DWPF to scope and cost retrofitting the Auxiliary Pump Pit (APP) to enable performing a final wash of each batch of precipitate slurry before R is transferred into the DWPF Soft Processing Cell (SPC). An initial technical bases for the Late Wash Facility was transmitted to DWPF on June 15, 1992. Research and development activities are continuing directed principally at optimization of the cross-f low fitter decontamination methodology and pilot-scale validation of the recommended benzene stripping metodology.

  12. Major Design Changes Late in Title II or early in Title III Can...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Design Changes Late in Title II or early in Title III Can Be Costly PMLL Identifier: ... design changes occur late in Title II or early in Title III Discussion: Numerous ...

  13. Smart Grid Week: R&D Projects Paving the Way to the 21st Century...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Smart Grid Week: R&D Projects Paving the Way to the 21st Century Grid Smart Grid Week: R&D Projects Paving the Way to the 21st Century Grid June 4, 2013 - 10:50am Q&A What do you...

  14. Smart Grid Week: R&D Projects Paving the Way to the 21st Century...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    R&D Projects Paving the Way to the 21st Century Grid Smart Grid Week: R&D Projects Paving the Way to the 21st Century Grid June 4, 2013 - 10:50am Q&A What do you want to know about ...

  15. Initial technical basis for late washing filter cleaning

    SciTech Connect (OSTI)

    Morrissey, M.F.; Dworjanyn, L.O.

    1992-07-23

    Bench scale filter cleaning tests at the Savannah River Technology Center have shown that cross-flow filter elements can be cleaned between late wash filtration runs and restored to original clean water flux conditions. The most effective cleaning technique was high flow axial recirculation, followed by flushing with caustic solution. Simple flushing with oxalic acid and caustic is less effective and is not recommended because of adverse experience in ITP filter cleaning and uncertainty in the.nature of radiolysis by-product contaminants.

  16. Clean, Efficient, and Reliable Power for the 21st Century: Fact Sheet |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Clean, Efficient, and Reliable Power for the 21st Century: Fact Sheet Clean, Efficient, and Reliable Power for the 21st Century: Fact Sheet This fact sheet provides an overview of the U.S. Department of Energy's Fuel Cell Technologies Office. PDF icon Clean, Efficient, and Reliable Power for the 21st Century More Documents & Publications QER - Comment of Honda Motor Co., Inc. State of the States: Fuel Cells in America 2012 2010 Hydrogen and Fuel Cell Global

  17. Energy transitions in the early 21st Century

    SciTech Connect (OSTI)

    Paul Meakin

    2013-01-01

    We are in the early stages of a long and complex transition from a global economy based on fossil energy to an economy based on low carbon renewable energy. However, fossil fuel resources are abundant and widely distributed, and they will remain the dominant source of primary energy for at least the next quarter century. In the United States, displacement of coal by natural gas for electric power generation has done more to reduce CO2 emissions than all new renewables combined, and this may occur globally for the next decade or two, even if the European Union does not take advantage of its large unconventional natural gas resources. Greater energy efficiency (not including the efficiencies associated with displacement of coal by gas) will also be more important than new renewables. Cost/benefit ratios are important for sustainability of the transition, and some energy efficiency technologies and displacement of coal by natural gas have lower cost/benefit ratios than wind power, solar power or biofuels. Money spent on the large scale deployment of wind, solar and especially biofuels would be better spent on research, development and demonstration of a broader suite of technologies that would support the energy transition, with a focus on improving the cost benefit ratios of already deployed technologies and developing alternatives. Advanced nuclear reactors, engineered geothermal systems, fossil fuel recovery coupled with CO2 sequestration and pre-combustion or post-combustion decarbonation of fossil fuels with geological CO2 sequestration are among the technologies that might be more cost effective than wind, solar or biofuels, and biofuels have serious adverse societal and environment consequences.

  18. Hydrology of modern and late Holocene lakes, Death Valley, California

    SciTech Connect (OSTI)

    Grasso, D.N.

    1996-07-01

    Above-normal precipitation and surface-water runoff, which have been generally related to the cyclic recurrence of the El Nino-Southern Oscillation, have produced modern ephemeral lakes in the closed-basin Death Valley watershed. This study evaluates the regional hydroclimatic relations between precipitation, runoff, and lake transgressions in the Death Valley watershed. Recorded precipitation, runoff, and spring discharge data for the region are used in conjunction with a closed-basin, lake-water-budget equation to assess the relative contributions of water from these sources to modern lakes in Death Valley and to identify the requisite hydroclimatic changes for a late Holocene perennial lake in the valley. As part of the Yucca Mountain Site Characterization Program, an evaluation of the Quaternary regional paleoflood hydrology of the potential nuclear-waste repository site at Yucca Mountain, Nevada, was planned. The objectives of the evaluation were (1) to identify the locations and investigate the hydraulic characteristics of paleofloods and compare these with the locations and characteristics of modern floods, and (2) to evaluate the character and severity of past floods and debris flows to ascertain the potential future hazards to the potential repository during the pre-closure period (US Department of Energy, 1988). This study addresses the first of these objectives, and the second in part, by assessing and comparing the sizes, locations, and recurrence rates of modern, recorded (1962--83) floods and late Holocene paleofloods for the 8,533-mi{sup 2}, closed-basin, Death Valley watershed with its contributing drainage basins in the Yucca Mountain site area.

  19. Clean, Efficient, and Reliable Power for the 21st Century: Fact...

    Broader source: Energy.gov (indexed) [DOE]

    This fact sheet provides an overview of the U.S. Department of Energy's Fuel Cell Technologies Office. PDF icon Clean, Efficient, and Reliable Power for the 21st Century More ...

  20. Roadmap and technical white papers for the 21st century truck partnership

    SciTech Connect (OSTI)

    None, None

    2006-12-01

    21st Century Truck Partnership will support the development and implementation of technologies that will cut fuel use and emissions and enhance safety, affordability, and performance of trucks and buses.

  1. With 400th Ph.D. grad, UW-Madison celebrates a half century of...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    With 400th Ph.D. grad, UW-Madison celebrates a half century of fusion energy American Fusion News Category: U.S. Universities Link: With 400th Ph.D. grad, UW-Madison celebrates a...

  2. A POLICY FRAMEWORK FOR THE 21st CENTURY GRID: Enabling Our Secure Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Future | Department of Energy A POLICY FRAMEWORK FOR THE 21st CENTURY GRID: Enabling Our Secure Energy Future A POLICY FRAMEWORK FOR THE 21st CENTURY GRID: Enabling Our Secure Energy Future This policy framework focuses on the deployment of information and communications technologies in the electricity sector. As they are developed and deployed, these smart grid technologies and applications will bring new capabilities to utilities and their customers. In tandem with the development and

  3. How Synchrophasors are Bringing the Grid into the 21st Century | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Synchrophasors are Bringing the Grid into the 21st Century How Synchrophasors are Bringing the Grid into the 21st Century April 16, 2014 - 12:10pm Addthis Power lines carry electricity across Washington State. | Photo courtesy of the Energy Department. Power lines carry electricity across Washington State. | Photo courtesy of the Energy Department. Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability What is a

  4. Early Proctoscopy is a Surrogate Endpoint of Late Rectal Toxicity in

    Office of Scientific and Technical Information (OSTI)

    Prostate Cancer Treated With Radiotherapy (Journal Article) | SciTech Connect Early Proctoscopy is a Surrogate Endpoint of Late Rectal Toxicity in Prostate Cancer Treated With Radiotherapy Citation Details In-Document Search Title: Early Proctoscopy is a Surrogate Endpoint of Late Rectal Toxicity in Prostate Cancer Treated With Radiotherapy Purpose: To predict the grade and incidence of late clinical rectal toxicity through short-term (1 year) mucosal alterations. Methods and Materials:

  5. Hydrolysis of late-washed, irradiated tetraphenylborate slurry simulants I: Phenylboric acid hydrolysis kinetics

    SciTech Connect (OSTI)

    Marek, J.C.

    2000-02-10

    The attached report details the kinetics of phenylboric acid reaction at 90 degrees C during precipitate hydrolysis processing of late-washed, irradiated tetraphenylborate slurry simulants.

  6. Late Cenozoic fault kinematics and basin development, Calabrian arc, Italy

    SciTech Connect (OSTI)

    Knott, S.D.; Turco, E.

    1988-08-01

    Current views for explaining the present structure of the Calabrian arc emphasize bending or buckling of an initially straight zone by rigid indentation. Although bending has played an important role, bending itself cannot explain all structural features now seen in the arc for the following reasons: (1) across-arc extension is inconsistent with buckling, (2) north-south compression predicted by a bending mechanism to occur in the internal part of a curved mountain belt is not present in the Calabrian arc, and (3) lateral shear occurs throughout the arc, not just along the northern and southern boundaries. The model presented here is based on lateral bending of mantle and lower crust (demonstrated by variation in extension in the Tyrrhenian basin) and semibrittle faulting and block rotation in the upper crust. These two styles of deformation are confined to the upper plate of the Calabrian subduction system. This deformation is considered to have been active from the beginning of extension in the Tyrrhenian basin (late Tortonian) and is still active today (based on Holocene seismicity). Block rotations are a consequence of lateral heterogeneous shear during extension. Therefore, some of the observed rotation of paleo-magnetic declinations may have occurred in areas undergoing extension and not just during thrusting. Inversion of sedimentary basins by block rotation is predicted by the model. The model will be a useful aid in interpreting reflection seismic data and exploring and developing offshore and onshore sedimentary basins in southern Italy.

  7. Century-Midas steps slowly into the RV (recreational vehicles) LPG conversion market

    SciTech Connect (OSTI)

    Kincaid, J.

    1980-02-01

    Midas International will obtain LPG carburetion equipment from Century for installation in up to 20,000 RV. The market for gasoline-powered RV has been depressed since the surge in gasoline prices, and the installation of Century's equipment represents an attempt to attract customers by reducing RV operating costs. According to J. Kincaid (Midas Inst.), propane, besides being cheaper than gasoline, is also cheaper than diesel fuel, despite the better mileage obtained with diesel fuel, because the use of diesel fuel requires the installation of a diesel engine, which is far more expensive than installation of LPG carburetion. Although most of the LPG carburetion manufacturers, with a backlog of orders, did not evince interest in Midas' search for conversion equipment for RV, Century responded, at least partly because Midas also manufactures fleet delivery trucks, which represent a potentially much larger market for LPG conversion and use.

  8. EAC Recommendations on Expanding and Modernizing the Electric Power Delivery System for the 21st Century (September 2014)

    Broader source: Energy.gov [DOE]

    EAC Recommendations from the September 2014 meeting on Expanding and Modernizing the Electric Power Delivery System for the 21st Century

  9. Market Evolution: Wholesale Electricity Market Design for 21st Century Power Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1stCenturyPower.org Technical Report NREL/TP-6A20-57477 October 2013 Contract No. DE-AC36-08GO28308 Market Evolution: Wholesale Electricity Market Design for 21 st Century Power Systems Jaquelin Cochran, Mackay Miller, Michael Milligan, Erik Ela, Douglas Arent, and Aaron Bloom National Renewable Energy Laboratory Matthew Futch IBM Juha Kiviluoma and Hannele Holtinnen VTT Technical Research Centre of Finland Antje Orths Energinet.dk Emilio Gómez-Lázaro and Sergio Martín-Martínez Universidad

  10. EARLY- AND LATE-TIME OBSERVATIONS OF SN 2008ha: ADDITIONAL CONSTRAINTS...

    Office of Scientific and Technical Information (OSTI)

    We also present late-time imaging and spectroscopy that are consistent with this scenario. Authors: Foley, Ryan J. ; Challis, Peter J. ; Kirshner, Robert P. 1 ; Brown, Peter J. ...

  11. DOUBLETS AND DOUBLE PEAKS: LATE-TIME [O I] lambdalambda6300,...

    Office of Scientific and Technical Information (OSTI)

    ...TIME O I lambdalambda6300, 6364 LINE PROFILES OF STRIPPED-ENVELOPE, CORE-COLLAPSE SUPERNOVAE Citation Details In-Document Search Title: DOUBLETS AND DOUBLE PEAKS: LATE-TIME O I ...

  12. Observed 20th Century Desert Dust Variability: Impact on Climate and Biogeochemistry

    SciTech Connect (OSTI)

    Mahowald, Natalie; Kloster, Silvia; Engelstaedter, S.; Moore, Jefferson Keith; Mukhopadhyay, S.; McConnell, J. R.; Albani, S.; Doney, Scott C.; Bhattacharya, A.; Curran, M. A. J.; Flanner, Mark G.; Hoffman, Forrest M; Lawrence, David M.; Lindsay, Keith; Mayewski, P. A.; Neff, Jason; Rothenberg, D.; Thomas, E.; Thornton, Peter E; Zender, Charlie S.

    2010-01-01

    Desert dust perturbs climate by directly and indirectly interacting with incoming solar and outgoing long wave radiation, thereby changing precipitation and temperature, in addition to modifying ocean and land biogeochemistry. While we know that desert dust is sensitive to perturbations in climate and human land use, previous studies have been unable to determine whether humans were increasing or decreasing desert dust in the global average. Here we present observational estimates of desert dust based on paleodata proxies showing a doubling of desert dust during the 20th century over much, but not all the globe. Large uncertainties remain in estimates of desert dust variability over 20th century due to limited data. Using these observational estimates of desert dust change in combination with ocean, atmosphere and land models, we calculate the net radiative effect of these observed changes (top of atmosphere) over the 20th century to be -0.14 {+-} 0.11 W/m{sup 2} (1990-1999 vs. 1905-1914). The estimated radiative change due to dust is especially strong between the heavily loaded 1980-1989 and the less heavily loaded 1955-1964 time periods (-0.57 {+-} 0.46 W/m{sup 2}), which model simulations suggest may have reduced the rate of temperature increase between these time periods by 0.11 C. Model simulations also indicate strong regional shifts in precipitation and temperature from desert dust changes, causing 6 ppm (12 PgC) reduction in model carbon uptake by the terrestrial biosphere over the 20th century. Desert dust carries iron, an important micronutrient for ocean biogeochemistry that can modulate ocean carbon storage; here we show that dust deposition trends increase ocean productivity by an estimated 6% over the 20th century, drawing down an additional 4 ppm (8 PgC) of carbon dioxide into the oceans. Thus, perturbations to desert dust over the 20th century inferred from observations are potentially important for climate and biogeochemistry, and our understanding of these changes and their impacts should continue to be refined.

  13. Technology Roadmap for the 21st Century Truck Program, a government-industry research partnership

    SciTech Connect (OSTI)

    2000-12-01

    The 21st Century Truck Program has been established as a government-industry research partnership to support the development and implementation of commercially viable technologies that will dramatically cut fuel use and emissions of commercial trucks and buses while enhancing their safety and affordability as well as maintaining or enhancing performance. The innovations resulting from this program will reduce dependence on foreign oil, improve our nation's air quality, provide advanced technology for military vehicles, and enhance the competitiveness of the U.S. truck and bus industry while ensuring safe and affordable freight and bus transportation for the nation's economy. This Technology Roadmap for the 21st Century Truck Program has been prepared to guide the development of the technical advancements that will enable the needed improvements in commercial truck fuel economy, emissions, and safety.

  14. Impact of Light-Duty Vehicle Emissions on 21st Century Carbon Dioxide Concentrations

    SciTech Connect (OSTI)

    Smith, Steven J.; Kyle, G. Page

    2007-08-04

    The impact of light-duty passenger vehicle emissions on global carbon dioxide concentrations was estimated using the MAGICC reduced-form climate model combined with the PNNL contribution to the CCSP scenarios product. Our central estimate is that tailpipe light duty vehicle emissions of carbon-dioxide over the 21st century will increase global carbon dioxide concentrations by slightly over 12 ppmv by 2100.

  15. Visioning the 21st Century Electricity Industry: Outcomes and Strategies for America

    Energy Savers [EERE]

    Lauren Azar Senior Advisor to the Secretary U. S. Department of Energy 8 February 2012 Visioning the 21 st Century Electricity Industry: Strategies and Outcomes for America http://teeic.anl.gov/er/transmission/restech/dist/index.cfm We all have "visions," in one form or another: * Corporations call them strategic plans * RTOs ... transmission expansion plans or Order 1000 plans * State PUCs ... integrated resource plans * Employees ... career goals Artist: Paolo Frattesi Artist: Paolo

  16. Power Systems of the Future: A 21st Century Power Partnership Thought Leadership Report (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    Powerful trends in technology, policy environments, financing, and business models are driving change in power sectors globally. In light of these trends, the question is no longer whether power systems will be transformed, but rather how these transformations will occur. Power Systems of the Future, a thought leadership report from the 21st Century Power Partnership, explores these pathways explores actions that policymakers and regulators can take to encourage desired power system outcomes.

  17. LATE SPECTRAL EVOLUTION OF THE EJECTA AND REVERSE SHOCK IN SN 1987A

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect LATE SPECTRAL EVOLUTION OF THE EJECTA AND REVERSE SHOCK IN SN 1987A Citation Details In-Document Search Title: LATE SPECTRAL EVOLUTION OF THE EJECTA AND REVERSE SHOCK IN SN 1987A We present observations with the Very Large Telescope and Hubble Space Telescope (HST) of the broad emission lines from the inner ejecta and reverse shock of SN 1987A from 1999 February until 2012 January (days 4381-9100 after explosion). We detect broad lines from H{alpha},

  18. Mini Z' Burst from Relic Supernova Neutrinos and Late NeutrinoMasses

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Mini Z' Burst from Relic Supernova Neutrinos and Late NeutrinoMasses Citation Details In-Document Search Title: Mini Z' Burst from Relic Supernova Neutrinos and Late NeutrinoMasses Authors: Goldberg, Haim ; Perez, Gilad ; Sarcevic, Ina Publication Date: 2006-11-26 OSTI Identifier: 933093 Report Number(s): LBNL--57632 DOE Contract Number: DE-AC02-05CH11231 Resource Type: Journal Article Resource Relation: Journal Name: Journal of High Energy Physics;

  19. DOUBLETS AND DOUBLE PEAKS: LATE-TIME [O I] lambdalambda6300, 6364 LINE

    Office of Scientific and Technical Information (OSTI)

    PROFILES OF STRIPPED-ENVELOPE, CORE-COLLAPSE SUPERNOVAE (Journal Article) | SciTech Connect DOUBLETS AND DOUBLE PEAKS: LATE-TIME [O I] lambdalambda6300, 6364 LINE PROFILES OF STRIPPED-ENVELOPE, CORE-COLLAPSE SUPERNOVAE Citation Details In-Document Search Title: DOUBLETS AND DOUBLE PEAKS: LATE-TIME [O I] lambdalambda6300, 6364 LINE PROFILES OF STRIPPED-ENVELOPE, CORE-COLLAPSE SUPERNOVAE We present optical spectra of SN 2007gr, SN 2007rz, SN 2007uy, SN 2008ax, and SN 2008bo obtained in the

  20. Models and correlations of the DEBRIS Late-Phase Melt Progression Model

    SciTech Connect (OSTI)

    Schmidt, R.C.; Gasser, R.D.

    1997-09-01

    The DEBRIS Late Phase Melt Progression Model is an assembly of models, embodied in a computer code, which is designed to treat late-phase melt progression in dry rubble (or debris) regions that can form as a consequence of a severe core uncover accident in a commercial light water nuclear reactor. The approach is fully two-dimensional, and incorporates a porous medium modeling framework together with conservation and constitutive relationships to simulate the time-dependent evolution of such regions as various physical processes act upon the materials. The objective of the code is to accurately model these processes so that the late-phase melt progression that would occur in different hypothetical severe nuclear reactor accidents can be better understood and characterized. In this report the models and correlations incorporated and used within the current version of DEBRIS are described. These include the global conservation equations solved, heat transfer and fission heating models, melting and refreezing models (including material interactions), liquid and solid relocation models, gas flow and pressure field models, and the temperature and compositionally dependent material properties employed. The specific models described here have been used in the experiment design analysis of the Phebus FPT-4 debris-bed fission-product release experiment. An earlier DEBRIS code version was used to analyze the MP-1 and MP-2 late-phase melt progression experiments conducted at Sandia National Laboratories for the US Nuclear Regulatory Commission.

  1. Roadmap to Guide U.S. Photovoltaics Industry in 21st Century

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Roadmap to Guide U.S. Photovoltaics Industry in 21st Century For more information contact: George Douglas, 303-275-4096 e:mail: George Douglas Golden, Colo., Jan. 20, 2000 - Americans want clean solar electricity. The U.S. photovoltaics industry wants them to have it. Solar-cell manufacturers and suppliers see photovoltaics (PV) producing at least 15 percent of the additional electrical power the United States will need in 2020. But how will the industry bring down costs, overcome market

  2. Southwestern piñon forests likely to disappear by end of century

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    STEM skills Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:May 2016 all issues All Issues » submit Southwestern piñon forests likely to disappear by end of century Conifers throughout much of Northern Hemisphere possibly on similar path February 1, 2016 PBS NewsHour reporter Miles O'Brien (l) and Los Alamos scientist Nate McDowell discuss how climate change is killing trees. PBS NewsHour reporter Miles O'Brien (l) and Los Alamos

  3. Scenarios of Global Municipal Water-Use Demand Projections over the 21st Century

    SciTech Connect (OSTI)

    Hejazi, Mohamad I.; Edmonds, James A.; Chaturvedi, Vaibhav; Davies, Evan; Eom, Jiyong

    2013-03-06

    This paper establishes three future projections of global municipal water use to the end of the 21st century: A reference business-as usual (BAU) scenario, a High Technological Improvement (High Tech) scenario and a Low Technological Improvement (Low Tech) scenario. A global municipal water demand model is constructed using global water use statistics at the country-scale, calibrated to the base year of 2005, and simulated to the end of the 21st century. Since the constructed water demand model hinges on socioeconomic variables (population, income), water price, and end-use technology and efficiency improvement rates, projections of those input variables are adopted to characterize the uncertainty in future water demand estimates. The water demand model is linked to the Global Change Assessment Model (GCAM), a global change integrated assessment model. Under the reference scenario, the global total water withdrawal increases from 466 km3/year in 2005 to 941 km3/year in 2100,while withdrawals in the high and low tech scenarios are 321 km3/ year and 2000 km3/ year, respectively. This wide range (321-2000 km3/ year) indicates the level of uncertainty associated with such projections. The simulated global municipal demand projections are most sensitive to population and income projections, then to end-use technology and efficiency projections, and finally to water price. Thus, using water price alone as a policy measure to reduce municipal water use may substantiate the share of municipal water price of peoples annual incomes.

  4. Exploration of cloud computing late start LDRD #149630 : Raincoat. v. 2.1.

    SciTech Connect (OSTI)

    Echeverria, Victor T.; Metral, Michael David; Leger, Michelle A.; Gabert, Kasimir Georg; Edgett, Patrick Garrett; Thai, Tan Q.

    2010-09-01

    This report contains documentation from an interoperability study conducted under the Late Start LDRD 149630, Exploration of Cloud Computing. A small late-start LDRD from last year resulted in a study (Raincoat) on using Virtual Private Networks (VPNs) to enhance security in a hybrid cloud environment. Raincoat initially explored the use of OpenVPN on IPv4 and demonstrates that it is possible to secure the communication channel between two small 'test' clouds (a few nodes each) at New Mexico Tech and Sandia. We extended the Raincoat study to add IPSec support via Vyatta routers, to interface with a public cloud (Amazon Elastic Compute Cloud (EC2)), and to be significantly more scalable than the previous iteration. The study contributed to our understanding of interoperability in a hybrid cloud.

  5. Structure and geologic history of late Cenozoic Eel River basin, California

    SciTech Connect (OSTI)

    Clarke, S.H. Jr.

    1988-03-01

    The Eel River basin formed as a late Cenozoic forearc basin floored by late Mesozoic and early Cenozoic allochthonous terranes (central and coastal belts of the Franciscan complex). Regionally, basement rocks are unconformably overlain on land by a sedimentary sequence as much as about 4200 m thick that comprises the Bear River Formation (early and middle Miocene) and the Wildcat Group (late Miocene to middle Pleistocene) and offshore by broadly coeval upper Tertiary and Quaternary deposits as much as 3300 m thick. Offshore, the southern part of the basin is typified by the seaward extensions of youthful northeast-dipping thrust and reverse faults and northwest-trending anticlines. The latest period of deformation in this part of the basin began during the middle Pleistocene and probably reflects north-northwestward migration of the Mendocino triple junction and encroachment of the Pacific plate. Farther north, the western basin margin and adjacent upper continental slope are separated from the axial part of the offshore basin by a narrow zone of north-northwest-trending, right-stepping en echelon folds. These folds indicate that northeast-southwest compression characteristic of the southern part of the basin is accompanied toward the north by right-lateral shear between the accretionary complex to the west and the basin to the east. The northeastern margin of the offshore basin is cut by north to north-northwest-trending high-angle reverse faults that vertically offset basement rocks as much as 1300 m, west side down. These faults, which may merge northward, coincide with older terrane boundaries and locally show evidence of late Cenozoic reactivation with possible right-lateral slip.

  6. The origin of the plateau and late rebrightening in the afterglow of GRB 120326A

    SciTech Connect (OSTI)

    Hou, S. J.; Lu, J. F.; Geng, J. J.; Wang, K.; Huang, Y. F.; Dai, Z. G.; Wu, X. F.

    2014-04-20

    GRB 120326A is an unusual gamma-ray burst (GRB) that has a long plateau and a very late rebrightening in both X-ray and optical bands. The similar behavior of the optical and X-ray light curves suggests that they may share a common origin. The long plateau starts at several hundred seconds and ends at tens of thousands of seconds, and the peak time of the late rebrightening is about 30,000 s. We analyze the energy injection model by means of numerical and analytical solutions, considering both the wind environment and the interstellar medium environment for GRB afterglows. We particularly study the influence of the injection starting time, ending time, stellar wind density (or density of the circumburst environment), and injection luminosity on the shape of the afterglow light curves, respectively. In the wind model, we find that the light curve is largely affected by the parameters and that there is a 'bump' in the late stage. In the wind environment, we found that the longer the energy is injected, the more obvious the rebrightening will be. We also find that the peak time of the bump is determined by the stellar wind density. We use the late continuous injection model to interpret the unusual afterglow of GRB 120326A. The model fits the observational data well; however, we find that the timescale of the injection must be higher than 10,000 s, which implies that the timescale of the central engine activity must also be more than 10,000 s. This information can give useful constraints on the central engines of GRBswe consider a newborn millisecond pulsar with a strong magnetic field to be the central engine. On the other hand, our results suggest that the circumburst environment of GRB 120326A is very likely a stellar wind.

  7. Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia

    SciTech Connect (OSTI)

    Naeser, C.W.; McKee, E.H.; Johnson, N.M.; MacFadden, B.J.

    1987-11-01

    Three new fission-track (zircon) and four new K-Ar (biotite) dates corroborate a late Oligocene-early Miocene age (22-28 Ma) for the Salla Beds of Bolivia. These ages contrast markedly with the previously accepted age of about 35 Ma for these strata and their contained faunas, and recasts of order and chronology of interchange between New World and Old World mammals.

  8. Late Cenozoic paleomagnetism and chronology of Andean basins of Bolivia: Evidence for possible oroclinal bending

    SciTech Connect (OSTI)

    MacFadden, B.J. ); Anaya, F.; Perez, H. ); Naeser, C.W. ); Zeitler, P.K. ); Campbell, K.E. Jr. )

    1990-07-01

    New paleomagnetic and radioisotopic data are reported from two late Tertiary high-elevation, non-marine basins in the eastern Cordillera of Bolivia. (1) Quebrada Honda, located at 22{degree}S lat., consists of a 300 m thick section containing abundant Santacrucian or Friasian (middle Miocene) fossil mammals. This locality is constrained by mean {sup 40}K/{sup 40}Ar ages of 12.83 {plus minus} 0.11 Ma and 11.96 {plus minus} 0.11 Ma, and the local magnetostratigraphy is correlated to chrons C5AA through C5A on the Magnetic Polarity Time Scale (MPTS). The fossil mammals from Quebrada Honda have an extrapolated age of about 13.0 to 12.7 Ma. (2) Micana, located at 17{degree}S lat., consists of a 205 m thick section containing late Miocene fossil mammals, including a megatheriid sloth and the tiny mesothere Microtypotherium cf. M. choquecotense. The locality is constrained by a fission-track age determination of 6.9 {plus minus} 1.1 Ma, and the local magnetostratigraphy is correlated to Chron 7 on the MPTS. The fossil mammals from this section have an extrapolated age of about 7.3 to 7.4 Ma. In conjunction with two other published data sets (Ocros, 13{degree}S, and Salla, 17{degree}S), these late Tertiary Andean localities indicate counterclockwise rotation at 13{degree}S, negligible rotation at 17{degree}S, and clockwise rotation at 22{degree}S. These data could represent local small-block rotations on a scale greater than about 6 km{sup 2}. However, these data are also consistent with a model of late Neogene bending of the Bolivian Orocline.

  9. On the late-time behavior of tracer test breakthrough curves

    SciTech Connect (OSTI)

    HAGGERTY,ROY; MCKENNA,SEAN A.; MEIGS,LUCY C.

    2000-06-12

    The authors investigated the late-time (asymptotic) behavior of tracer test breakthrough curves (BTCs) with rate-limited mass transfer (e.g., in dual or multi-porosity systems) and found that the late-time concentration, c, is given by the simple expression: c = t{sub ad} (c{sub 0}g {minus} m{sub 0}{partial_derivative}g/{partial_derivative}t), for t >> t{sub ad} and t{sub a} >> t{sub ad} where t{sub ad} is the advection time, c{sub 0} is the initial concentration in the medium, m{sub 0} is the 0th moment of the injection pulse; and t{sub a} is the mean residence time in the immobile domain (i.e., the characteristic mass transfer time). The function g is proportional to the residence time distribution in the immobile domain, the authors tabulate g for many geometries, including several distributed (multirate) models of mass transfer. Using this expression they examine the behavior of late-time concentration for a number of mass transfer models. One key results is that if rate-limited mass transfer causes the BTC to behave as a power-law at late-time (i.e., c {approximately} t{sup {minus}k}), then the underlying density function of rate coefficients must also be a power-law with the form a{sup k{minus}}, as a {r_arrow}0. This is true for both density functions of first-order and diffusion rate coefficients. BTCs with k < 3 persisting to the end of the experiment indicate a mean residence time longer than the experiment and possibly infinite, and also suggest an effective rate coefficient that is either undefined or changes as a function of observation time. They apply their analysis to breakthrough curves from Single-Well Injection-Withdrawal tests at the Waste Isolation Pilot Plant, New Mexico.

  10. Clues to the nature of SN 2009ip from photometric and spectroscopic evolution to late times

    SciTech Connect (OSTI)

    Graham, M. L. [Astronomy Department, University of California, Berkeley, CA 94720 (United States); Sand, D. J. [Physics Department, Texas Tech University, Lubbock, TX 79409 (United States); Valenti, S.; Howell, D. A.; Parrent, J. [Las Cumbres Observatory Global Telescope Network, Goleta, CA 93117 (United States); Halford, M.; Zaritsky, D. [Astronomy Department, University of Arizona, Tucson, AZ 85721 (United States); Bianco, F. [Department of Physics, New York University, 4 Washington Place, New York, NY 10003 (United States); Rest, A. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Dilday, B., E-mail: melissagraham@berkeley.edu [North Idaho College, 1000 W. Garden Avenue, Coeur d'Alene, ID 83814 (United States)

    2014-06-01

    We present time series photometric and spectroscopic data for the transient SN 2009ip from the start of its outburst in 2012 September until 2013 November. These data were collected primarily with the new robotic capabilities of the Las Cumbres Observatory Global Telescope Network, a specialized facility for time domain astrophysics, and includes supporting high-resolution spectroscopy from the Southern Astrophysical Research Telescope, Kitt Peak National Observatory, and Gemini Observatory. Based on our nightly photometric monitoring, we interpret the strength and timing of fluctuations in the light curve as interactions between fast-moving ejecta and an inhomogeneous circumstellar material (CSM) produced by past eruptions of this massive luminous blue variable (LBV) star. Our time series of spectroscopy in 2012 reveals that, as the continuum and narrow H? flux from CSM interactions declines, the broad component of H? persists with supernova (SN)-like velocities that are not typically seen in LBVs or SN impostor events. At late times, we find that SN 2009ip continues to decline slowly, at ? 0.01 mag day{sup 1}, with small fluctuations in slope similar to Type IIn supernovae (SNe IIn) or SN impostors but no further LBV-like activity. The late-time spectrum features broad calcium lines similar to both late-time SNe and SN impostors. In general, we find that the photometric and spectroscopic evolution of SN 2009ip is more similar to SNe IIn than either continued eruptions of an LBV star or SN impostors but we cannot rule out a nonterminal explosion. In this context, we discuss the implications for episodic mass loss during the late stages of massive star evolution.

  11. TESTING THE METAL OF LATE-TYPE KEPLER PLANET HOSTS WITH IRON-CLAD METHODS

    SciTech Connect (OSTI)

    Mann, Andrew W.; Hilton, Eric J.; Gaidos, Eric; Kraus, Adam

    2013-06-10

    It has been shown that F, G, and early K dwarf hosts of Neptune-sized planets are not preferentially metal-rich. However, it is less clear whether the same holds for late K and M dwarf planet hosts. We report metallicities of Kepler targets and candidate transiting planet hosts with effective temperatures below 4500 K. We use new metallicity calibrations to determine [Fe/H] from visible and near-infrared spectra. We find that the metallicity distribution of late K and M dwarfs monitored by Kepler is consistent with that of the solar neighborhood. Further, we show that hosts of Earth- to Neptune-sized planets have metallicities consistent with those lacking detected planets and rule out a previously claimed 0.2 dex offset between the two distributions at 6{sigma} confidence. We also demonstrate that the metallicities of late K and M dwarfs hosting multiple detected planets are consistent with those lacking detected planets. Our results indicate that multiple terrestrial and Neptune-sized planets can form around late K and M dwarfs with metallicities as low as 0.25 solar. The presence of Neptune-sized planets orbiting such low-metallicity M dwarfs suggests that accreting planets collect most or all of the solids from the disk and that the potential cores of giant planets can readily form around M dwarfs. The paucity of giant planets around M dwarfs compared to solar-type stars must be due to relatively rapid disk evaporation or a slower rate of planet accretion, rather than insufficient solids to form a core.

  12. Enforcement Policy Statement: Treatment of Late-Arriving Goods Due to West

    Energy Savers [EERE]

    Treatment of Late-Arriving Goods Due to West Coast Port Closure February 27, 2015 Closures at 29 West Coast marine ports in February 2015 due to a labor dispute have resulted in significant delays for certain goods entering the United States through those ports, including covered products and equipment subject to DOE energy or water conservation standards. Covered products and equipment subject to energy or water conservation standards must meet the standard(s) that are effective on the date

  13. Ruptured Aortic Aneurysm From Late Type II Endoleak Treated by Transarterial Embolization

    SciTech Connect (OSTI)

    Gunasekaran, Senthil; Funaki, Brian Lorenz, Jonathan

    2013-02-15

    Endoleak is the most common complication after endovascular aneurysm repair. The most common type of endoleak, a type II endoleak, typically follows a benign course and is only treated when associated with increasing aneurysm size. In this case report, we describe a ruptured abdominal aortic aneurysm due to a late, type II endoleak occurring 10 years after endovascular aneurysm repair that was successfully treated by transarterial embolization.

  14. The distribution of an illustrated timeline wall chart and teacher's guide of 20th century physics

    SciTech Connect (OSTI)

    Schwartz, Brian

    2000-12-26

    The American Physical Society's part of its centennial celebration in March of 1999 decided to develop a timeline wall chart on the history of 20th century physics. This resulted in eleven consecutive posters, which when mounted side by side, create a 23-foot mural. The timeline exhibits and describes the millstones of physics in images and words. The timeline functions as a chronology, a work of art, a permanent open textbook, and a gigantic photo album covering a hundred years in the life of the community of physicists and the existence of the American Physical Society. Each of the eleven posters begins with a brief essay that places a major scientific achievement of the decade in its historical context. Large portraits of the essays' subjects include youthful photographs of Marie Curie, Albert Einstein, and Richard Feynman among others, to help put a face on science. Below the essays, a total of over 130 individual discoveries and inventions, explained in dated text boxes with accompanying images, form the backbone of the timeline. For ease of comprehension, this wealth of material is organized into five color-coded story lines the stretch horizontally across the hundred years of the 20th century. The five story lines are: Cosmic Scale, relate the story of astrophysics and cosmology; Human Scale, refers to the physics of the more familiar distances from the global to the microscopic; Atomic Scale, focuses on the submicroscopic world of atoms, nuclei and quarks; Living World, chronicles the interaction of physics with biology and medicine; Technology, traces the applications of physic to everyday living. Woven into the bottom border of the timeline are period images of significant works of art, architecture, and technological artifacts such as telephones, automobiles, aircraft, computers, and appliances. The last poster, covering the years since 1995, differs from the others. Its essay concerns the prospect for physics into the next century, and is illustrated with pictures of promising award winning high school students who, it is hoped, will be the leading researchers of physics in the decades ahead. Appropriately the last entries in the timeline are not achievements but open questions to be answered in the future.

  15. Eolian evidence for climatic fluctuations during the Late Pleistocene and Holocene in Wyoming

    SciTech Connect (OSTI)

    Gaylord, D.R.

    1985-01-01

    Evaluation of eolian features, particularly sand dunes, in the Ferris-Lost Solider area of south-central Wyoming demonstrates the dynamic character of late Pleistocene and Holocene climatic fluctuations in a high altitude, intermontane basin. Directly- and indirectly-dated stratigraphic, sedimentary, and geomorphic evidence documents recurrent late Quaternary eolian activity as well as the timing and severity of episodic aridity during the Altithermal. Eolian activity in the Ferris-Lost Solider area began under cool and arid conditions by the late Pleistocene. Radiocarbon-dated dune and interdune strata reveal that Holocene sand dune building at Ferris-Lost Solider peaked between ca. 7660 and 4540 years b.p. The first phase of dune building was the most extensive and lasted until ca. 6460 years b.p. Warm, persistently arid conditions during this time favored active dunes with slipfaces, even in historically well-vegetated locales subject to high water tables. Increased effective moisture from ca. 6460 to 5940 years b.p. promoted dune stabilizing vegetation; but renewed dune building, lasting until ca. 4540 years b.p., followed this climatic moderation. Subsequent dune and interdune deposits reveal a return to climatic conditions where only sporadic and localized dune reactivations have interrupted overall dune stability. The most significant recent reactivation, probably associated with a regional decrease in effective moisture, occurred ca. 290 years b.p.

  16. The late endosome/lysosome-anchored p18-mTORC1 pathway controls terminal maturation of lysosomes

    SciTech Connect (OSTI)

    Takahashi, Yusuke; Nada, Shigeyuki; Mori, Shunsuke; Soma-Nagae, Taeko; Oneyama, Chitose; Okada, Masato

    2012-01-27

    Highlights: Black-Right-Pointing-Pointer p18 is a membrane adaptor that anchors mTORC1 to late endosomes/lysosomes. Black-Right-Pointing-Pointer We examine the role of the p18-mTORC1 pathway in lysosome biogenesis. Black-Right-Pointing-Pointer The loss of p18 causes accumulation of intact late endosomes by arresting lysosome maturation. Black-Right-Pointing-Pointer Inhibition of mTORC1 activity with rapamycin phenocopies the defects of p18 loss. Black-Right-Pointing-Pointer The p18-mTORC1 pathway plays crucial roles in the terminal maturation of lysosomes. -- Abstract: The late endosome/lysosome membrane adaptor p18 (or LAMTOR1) serves as an anchor for the mammalian target of rapamycin complex 1 (mTORC1) and is required for its activation on lysosomes. The loss of p18 causes severe defects in cell growth as well as endosome dynamics, including membrane protein transport and lysosome biogenesis. However, the mechanisms underlying these effects on lysosome biogenesis remain unknown. Here, we show that the p18-mTORC1 pathway is crucial for terminal maturation of lysosomes. The loss of p18 causes aberrant intracellular distribution and abnormal sizes of late endosomes/lysosomes and an accumulation of late endosome specific components, including Rab7, RagC, and LAMP1; this suggests that intact late endosomes accumulate in the absence of p18. These defects are phenocopied by inhibiting mTORC1 activity with rapamycin. Loss of p18 also suppresses the integration of late endosomes and lysosomes, resulting in the defective degradation of tracer proteins. These results suggest that the p18-mTORC1 pathway plays crucial roles in the late stages of lysosomal maturation, potentially in late endosome-lysosome fusion, which is required for processing of various macromolecules.

  17. 21st Century Locomotive Technology: 2003 Annual Technical Status Report DOE/AL68284-TSR03

    SciTech Connect (OSTI)

    Lembit Salasoo

    2004-01-09

    The 21st Century Locomotive program objective is to develop 25% more efficient freight locomotives by 2010. Diesel engine-related research addresses advanced fuel injection, electric turbocharger and abradable seals. Assembly of a common rail fuel injection test system is underway, and a CFD combustion model has been validated. An electrically assisted turbocharger has been constructed and operated, meeting the generator mode design rating. System characterization and optimization is ongoing. Candidate abradable seal materials have been identified and test coupons prepared. Locomotive system-related research addresses capturing, storing and utilizing regenerative braking energy in a hybrid locomotive, and fuel optimization control. Hybrid locomotive energy storage requirements have been identified and studies on specific energy storage solutions are in progress. Energy management controls have been defined and testing initiated. Train and track parameter identification necessary for fuel optimization has been demonstrated.

  18. Laboratories for the 21st Century: Case Studies; National Renewable Energy Laboratory, Science and Technology Facility, Golden, Colorado (Brochure)

    SciTech Connect (OSTI)

    Van Geet, O.

    2010-04-01

    As a Laboratories for the 21st Century (Labs21) partner, NREL set aggressive goals for energy savings, daylighting, and achieving a LEED Gold rating (through the U.S. Green Building Council's Leadership in Energy and Environmental Design program) for its S&TF building.

  19. 20th Century Reanalysis Project Ensemble Gateway: 56 Estimates of World Temperature, Pressure, Humidity, and Wind, 1871-2010

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    This site provides data from the 20th Century Reanalysis Project, offering temperature, pressure, humidity, and wind predictions in 200 km sections all around the earth from 1871 to 2010, every 6 hours, based on historical data. The ensemble mean and standard deviation for each value were calculated over a set of 56 simulations. Data for each of the 56 ensemble members are included here. The dataset consists of files in netCDF 4 format that are available for download from the National Energy Research. The goal of the 20th Century Reanalysis Project is to use a Kalman filter-based technique to produce a global trophospheric circulation dataset at four-times-daily resolution back to 1871. The only dataset available for the early 20th century consists of error-ridden hand-drawn analyses of the mean sea level pressure field over the Northern Hemisphere. Modern data assimilation systems have the potential to improve upon these maps, but prior to 1948, few digitized upper-air sounding observations are available for such a reanalysis. The global tropospheric circulation dataset will provide an important validation check on the climate models used to make 21st century climate projections....[copied from http://portal.nersc.gov/project/20C_Reanalysis/

  20. Late Mesozoic crustal extension and rifting on the western edge of the Parana Basin, Paraguay

    SciTech Connect (OSTI)

    DeGraff, J.M.

    1985-01-01

    Geophysical and geological evidence indicates that the western edge of the Parana basin in Paraguay was a site of NE-SW directed crustal extension during late Mesozoic time. Major zones of normal faulting in south-eastern Paraguay trend northwesterly on average, and mafic dikes of probable late Mesozoic age have similar orientations. At least two NW-trending zones of tectonic subsidence, each over 200 km long, are now recognized in eastern Paraguay. Most alkalic rocks of south-eastern Paraguay are concentrated along this rift, and occur as simple to composite stocks and ring complexes composed of rocks ranging from foid-syenite to essexite. NW-trending, lamprophyric to phonolitic dikes are associated with some alkalic complexes. The southern zone, located about 125 km southwest, is a composite tectonic basin about 60 km wide and nearly devoid of alkalic rocks. The timing of crustal extension and rifting in eastern Paraguay is largely based on isotopic ages of associated alkalic rocks, which cluster between 150 and 100 Ma (latest Jurassic to mid-Cretaceous). Geologic evidence for the age of faulting and subsidence is consistent with this age range; tectonic depressions were being filled in late Cretaceous to early Cenozoic time. The age range of alkalic rocks in Paraguay contain that of the Serra Geral basalts and spans the time when South America Separated from Africa. This suggests that alkalic activity and crustal extension in eastern Paraguay are grossly related to the Serra Geral extrusive event, and were a manifestation of the breakup of South America and Africa far from the site of final separation.

  1. Lung Irradiation Increases Mortality After Influenza A Virus Challenge Occurring Late After Exposure

    SciTech Connect (OSTI)

    Manning, Casey M.; Johnston, Carl J.; Department of Pediatrics, University of Rochester Medical Center, Rochester, New York ; Reed, Christina K.; Lawrence, B. Paige; Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York ; Williams, Jacqueline P.; Finkelstein, Jacob N.

    2013-05-01

    Purpose: To address whether irradiation-induced changes in the lung environment alter responses to a viral challenge delivered late after exposure but before the appearance of late lung radiation injury. Methods and Materials: C57BL/6J mice received either lung alone or combined lung and whole-body irradiation (0-15 Gy). At 10 weeks after irradiation, animals were infected with 120 HAU influenza virus strain A/HKx31. Innate and adaptive immune cell recruitment was determined using flow cytometry. Cytokine and chemokine production and protein leakage into the lung after infection were assessed. Results: Prior irradiation led to a dose-dependent failure to regain body weight after infection and exacerbated mortality, but it did not affect virus-specific immune responses or virus clearance. Surviving irradiated animals displayed a persistent increase in total protein in bronchoalveolar lavage fluid and edema. Conclusions: Lung irradiation increased susceptibility to death after infection with influenza virus and impaired the ability to complete recovery. This altered response does not seem to be due to a radiation effect on the immune response, but it may possibly be an effect on epithelial repair.

  2. LATE-TIME OBSERVATIONS OF GRB 080319B: JET BREAK, HOST GALAXY, AND ACCOMPANYING SUPERNOVA

    SciTech Connect (OSTI)

    Tanvir, N. R.; O'Brien, P. T.; Wiersema, K.; Starling, R. L. C.; Rol, E.; Levan, A. J.; Svensson, K.; Fruchter, A. S.; Granot, J.; Jakobsson, P.; Fynbo, J.; Hjorth, J.; Curran, P. A.; Burrows, D. N.; Genet, F.

    2010-12-10

    The Swift-discovered GRB 080319B was by far the most distant source ever observed at naked-eye brightness, reaching a peak apparent magnitude of 5.3 at a redshift of z = 0.937. We present our late-time optical (Hubble Space Telescope, Gemini, and Very Large Telescope) and X-ray (Chandra) observations, which confirm that an achromatic break occurred in the power-law afterglow light curve at {approx}11 days post-burst. This most likely indicates that the gamma-ray burst (GRB) outflow was collimated, which for a uniform jet would imply a total energy in the jet E{sub jet} {approx}> 10{sup 52} erg. Our observations also show a late-time excess of red light, which is well explained if the GRB was accompanied by a supernova (SN), similar to those seen in some other long-duration GRBs. The latest observations are dominated by light from the host and show that the GRB took place in a faint dwarf galaxy (r(AB) {approx} 27.0, rest frame M{sub B} {approx} -17.2). This galaxy is small even by the standards of other GRB hosts, which is suggestive of a low-metallicity environment. Intriguingly, the properties of this extreme event-a small host and bright SN-are entirely typical of the very low luminosity bursts such as GRB 980425 and GRB 060218.

  3. IDENTIFYING NEARBY, YOUNG, LATE-TYPE STARS BY MEANS OF THEIR CIRCUMSTELLAR DISKS

    SciTech Connect (OSTI)

    Schneider, Adam; Song, Inseok; Melis, Carl; Zuckerman, B.; Bessell, Mike E-mail: song@physast.uga.edu E-mail: ben@astro.ucla.edu

    2012-10-01

    It has recently been shown that a significant fraction of late-type members of nearby, very young associations (age {approx}<10 Myr) display excess emission at mid-IR wavelengths indicative of dusty circumstellar disks. We demonstrate that the detection of mid-IR excess emission can be utilized to identify new nearby, young, late-type stars including two definite new members ('TWA 33' and 'TWA 34') of the TW Hydrae Association (TWA). Both new TWA members display mid-IR excess emission in the Wide-field Infrared Survey Explorer catalog and they show proper motion and youthful spectroscopic characteristics-namely, H{alpha} emission, strong lithium absorption, and low surface gravity features consistent with known TWA members. We also detect mid-IR excess-the first unambiguous evidence of a dusty circumstellar disk-around a previously identified UV-bright, young, accreting star (2M1337) that is a likely member of the Lower-Centaurus Crux region of the Scorpius-Centaurus Complex.

  4. Stratigraphic evidence for late Quaternary dune activity near Hudson on the Piedmont of northern Colorado

    SciTech Connect (OSTI)

    Forman, S.L.; Maat, P. (Univ. of Colorado, Boulder (USA))

    1990-08-01

    Stabilized dune fields are common features near Hudson, on the Piedmont of northern Colorado. Exposures in dune and interdune sites expose a sequence of eolian sediments and paleosols that record a complex history of eolian activity during the late Quaternary. Radiocarbon and thermoluminescence age estimates on A horizons buried by eolian sand indicate that dunes were reactivated sometime between 7 and 9 ka. On the basis of morphology of surface soils, the dunes were most recently stabilized <3 ka. At present that are no data to indicate if there were multiple periods of dune movement and stabilization during the Holocene. The penultimate pre-Holocene dune-forming episode probably terminated ca. 13 ka and may be coincident with the Pinedale glaciation. The stratigraphy at interdune sites shows at least two eolian depositional events prior to the penultimate event; they were separated by periods of pedogenesis, one of which may have exceeded 40 ka. This analysis indicates that dunes in northern Colorado were active during both cold-arid and warn-arid periods in the late Quaternary.

  5. Proxy late Holocene climatic record deduced from northwest Alaska beach ridges

    SciTech Connect (OSTI)

    Mason, O.K.; Jordan, J.W.

    1992-03-01

    A climatically sensitive, oscillatory pattern of progradation and erosion is revealed in late Holocene accretionary sand ridge and barrier island complexes of Seward Peninsula, northwest Alaska. Archaeological and geological radiocarbon dates constrain the chronology for the Cape Espenberg beach ridge plain and the Shishmaref barrier islands, 50 km to the southwest. Cape Espenberg, the depositional sink for the northeastward longshore transport system, contains the oldest sedimentary deposits: 3700 +/- 90 B.P. (B-23170) old grass from a paleosol in a low dune. The oldest date on the Shishmaref barrier islands is 1550 +/- 70 B.P. (B-23183) and implies that the modern barrier is a comparatively recent phenomenon. Late Holocene sedimentation along the Seward Peninsula varied between intervals of rapid progradation and erosion. Rapid progradation predominated from 4000-3300 B.P. and from 2000-1200 B.P., with the generation of low beach ridges without dunes, separated by wide swales. During erosional periods higher dunes built atop beach ridges: as between 3300-2000 B.P. and intermittently from 1000 B.P. to the present. Dune formation correlates with the Neoglacial and Little Ice Age glacial advances and increased alluviation in northern and central Alaska, while rapid progradation is contemporaneous with warmer intervals of soil and/or, peat formation atop alluvial terraces, dated to 4000-3500 and 2000-1000 B.P.

  6. Recognizing 21. century citizenship: 1997 federal energy and water management award winners

    SciTech Connect (OSTI)

    1997-12-31

    Energy is a luxury that no one can afford to waste, and many Federal government agencies are becoming increasingly aware of the importance of using energy wisely. Thoughtful use of energy resources is important, not only to meet agency goals, but because energy efficiency helps improve air quality. Sound facility management offers huge savings that affect the agency`s bottom line, the environment, and workplace quality. Hard work, innovation, and vision are characteristic of those who pursue energy efficiency. That is why the Department of Energy, Federal Energy Management Program (FEMP) is proud to salute the winners of the 1997 Federal Energy and Water Management Award. The 1997 winners represent the kind of 21st century thinking that will help achieve widespread Federal energy efficiency. In one year, the winners, through a combination of public and private partnerships, saved more than $100 million and 9.8 trillion Btu by actively identifying and implementing energy efficiency, water conservation, and renewable energy projects. The contributions of these individuals, small groups, and organizations are presented in this report.

  7. Intensity, duration, and frequency of precipitation extremes under 21st-century warming scenarios

    SciTech Connect (OSTI)

    Kao, Shih-Chieh; Ganguly, Auroop R

    2011-01-01

    Recent research on the projection of precipitation extremes has either focused on conceptual physical mechanisms that generate heavy precipitation or rigorous statistical methods that extrapolate tail behavior. However, informing both climate prediction and impact assessment requires concurrent physically and statistically oriented analysis. A combined examination of climate model simulations and observation-based reanalysis data sets suggests more intense and frequent precipitation extremes under 21st-century warming scenarios. Utilization of statistical extreme value theory and resampling-based uncertainty quantification combined with consideration of the Clausius-Clapeyron relationship reveals consistently intensifying trends for precipitation extremes at a global-average scale. However, regional and decadal analyses reveal specific discrepancies in the physical mechanisms governing precipitation extremes, as well as their statistical trends, especially in the tropics. The intensifying trend of precipitation extremes has quantifiable impacts on intensity-duration-frequency curves, which in turn have direct implications for hydraulic engineering design and water-resources management. The larger uncertainties at regional and decadal scales suggest the need for caution during regional-scale adaptation or preparedness decisions. Future research needs to explore the possibility of uncertainty reduction through higher resolution global climate models, statistical or dynamical downscaling, as well as improved understanding of precipitation extremes processes.

  8. Dynamic EROI Assessment of the IPCC 21st Century Electricity Production Scenario

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Neumeyer, Charles; Goldston, Robert

    2016-04-28

    Abstract: The Energy Return on Investment (EROI) is an important measure of the energy gain of an electrical power generating facility that is typically evaluated based on the life cycle energy balance of a single facility. The EROI concept can be extended to cover a collection of facilities that comprise a complete power system and used to assess the expansion and evolution of a power system as it transitions from one portfolio mix of technologies to another over time. In this study we develop a dynamic EROI model that simulates the evolution of a power system and we perform anmore » EROI simulation of one of the electricity production scenarios developed under the auspices of the Intergovernmental Panel on Climate Change (IPCC) covering the global supply of electricity in the 21st century. Our analytic tool provides the means for evaluation of dynamic EROI based on arbitrary time-dependent demand scenarios by modeling the required expansion of power generation, including the plowback needed for new construction and to replace facilities as they are retired. The results provide insight into the level of installed and delivered power, above and beyond basic consumer demand, that is required to support construction during expansion, as well as the supplementary power that may be required if plowback constraints are imposed. In addition, sensitivity to EROI parameters, and the impact of energy storage efficiency are addressed.« less

  9. Hypopharyngeal Dose Is Associated With Severe Late Toxicity in Locally Advanced Head-and-Neck Cancer: An RTOG Analysis

    SciTech Connect (OSTI)

    Machtay, Mitchell; Moughan, Jennifer; Farach, Andrew; University of Texas Health Science Center Martin-O'Meara, Elizabeth; Galvin, James; Thomas Jefferson University, Philadelphia, Pennsylvania ; Garden, Adam S.; Weber, Randal S.; Cooper, Jay S.; Forastiere, Arlene; Ang, K. Kian

    2012-11-15

    Purpose: Concurrent chemoradiation therapy (CCRT) for squamous cell carcinoma of the head and neck (SCCHN) increases local tumor control but at the expense of increased toxicity. We recently showed that several clinical/pretreatment factors were associated with the occurrence of severe late toxicity. This study evaluated the potential relationship between radiation dose delivered to the pharyngeal wall and toxicity. Methods and Materials: This was an analysis of long-term survivors from 3 previously reported Radiation Therapy Oncology Group (RTOG) trials of CCRT for locally advanced SCCHN (RTOG trials 91-11, 97-03, and 99-14). Severe late toxicity was defined in this secondary analysis as chronic grade 3-4 pharyngeal/laryngeal toxicity and/or requirement for a feeding tube {>=}2 years after registration and/or potential treatment-related death (eg, pneumonia) within 3 years. Radiation dosimetry (2-dimensional) analysis was performed centrally at RTOG headquarters to estimate doses to 4 regions of interest along the pharyngeal wall (superior oropharynx, inferior oropharynx, superior hypopharynx, and inferior hypopharynx). Case-control analysis was performed with a multivariate logistic regression model that included pretreatment and treatment potential factors. Results: A total of 154 patients were evaluable for this analysis, 71 cases (patients with severe late toxicities) and 83 controls; thus, 46% of evaluable patients had a severe late toxicity. On multivariate analysis, significant variables correlated with the development of severe late toxicity, including older age (odds ratio, 1.062 per year; P=.0021) and radiation dose received by the inferior hypopharynx (odds ratio, 1.023 per Gy; P=.016). The subgroup of patients receiving {<=}60 Gy to the inferior hypopharynx had a 40% rate of severe late toxicity compared with 56% for patients receiving >60 Gy. Oropharyngeal dose was not associated with this outcome. Conclusions: Severe late toxicity following CCRT is common in long-term survivors. Age is the most significant factor, but hypopharyngeal dose also was associated.

  10. Disrupting the (Energy) Status Quo: ARPA-E Helping the U.S. Face 21st Century Challenges

    Broader source: Energy.gov [DOE]

    The United States faces extraordinary challenges in the 21st century, from creating jobs to protecting the environment and reducing our energy dependency, but with strategic and smart investment we can create game-changing new technologies that overcome these challenges. The question is, will the U.S. make the choices necessary to “win the future?” Dr. Arun Majumdar -- the director of our advanced research agency, ARPA-E -- believes we can and should.

  11. Lessons Learned and Present Day Challenges of Addressing 20th Century Radiation Legacies of Russia and the United States

    SciTech Connect (OSTI)

    KRISTOFZSKI, J.G.

    2000-10-26

    The decommissioning of nuclear submarines, disposal of highly-enriched uranium and weapons-grade plutonium, and processing of high-level radioactive wastes represent the most challenging issues facing the cleanup of 20th century radiation legacy wastes and facilities. The US and Russia are the two primary countries dealing with these challenges, because most of the world's fissile inventory is being processed and stored at multiple industrial sites and nuclear weapons production facilities in these countries.

  12. CLARREO shortwave observing system simulation experiments of the twenty-first century: Simulator design and implementation

    SciTech Connect (OSTI)

    Feldman, D.R.; Algieri, C.A.; Ong, J.R.; Collins, W.D.

    2011-04-01

    Projected changes in the Earth system will likely be manifested in changes in reflected solar radiation. This paper introduces an operational Observational System Simulation Experiment (OSSE) to calculate the signals of future climate forcings and feedbacks in top-of-atmosphere reflectance spectra. The OSSE combines simulations from the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report for the NCAR Community Climate System Model (CCSM) with the MODTRAN radiative transfer code to calculate reflectance spectra for simulations of current and future climatic conditions over the 21st century. The OSSE produces narrowband reflectances and broadband fluxes, the latter of which have been extensively validated against archived CCSM results. The shortwave reflectance spectra contain atmospheric features including signals from water vapor, liquid and ice clouds, and aerosols. The spectra are also strongly influenced by the surface bidirectional reflectance properties of predicted snow and sea ice and the climatological seasonal cycles of vegetation. By comparing and contrasting simulated reflectance spectra based on emissions scenarios with increasing projected and fixed present-day greenhouse gas and aerosol concentrations, we find that prescribed forcings from increases in anthropogenic sulfate and carbonaceous aerosols are detectable and are spatially confined to lower latitudes. Also, changes in the intertropical convergence zone and poleward shifts in the subsidence zones and the storm tracks are all detectable along with large changes in snow cover and sea ice fraction. These findings suggest that the proposed NASA Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission to measure shortwave reflectance spectra may help elucidate climate forcings, responses, and feedbacks.

  13. Agriculture, Land Use, Energy and Carbon Emission Impacts of Global Biofuel Mandates to Mid-Century

    SciTech Connect (OSTI)

    Wise, Marshall A.; Dooley, James J.; Luckow, Patrick; Calvin, Katherine V.; Kyle, G. Page

    2014-02-01

    Three potential future scenarios of expanded global biofuel production are presented here utilizing the GCAM integrated assessment model. These scenarios span a range that encompasses on the low end a continuation of existing biofuel production policies to two scenarios that would require an expansion of current targets as well as an extension of biofuels targets to other regions of the world. Conventional oil use is reduced by 4-8% in the expanded biofuel scenarios, which results in a decrease of in CO2 emissions on the order of 1-2 GtCO2/year by mid-century from the global transportation sector. The regional distribution of crop production is relatively unaffected, but the biofuels targets do result in a marked increase in the production of conventional crops used for energy. Producer prices of sugar and corn reach levels about 12% and 7% above year 2005 levels, while the increased competition for land causes the price of food crops such as wheat, although not used for bioenergy in this study, to increase by 1 to 2%. The amount of land devoted to growing all food crops and dedicated bioenergy crops is increased by about 10% by 2050 in the High biofuel case, with concurrent decreases in other uses of land such as forest and pasture. In both of the expanded biofuels cases studied, there is an increase in net cumulative carbon emissions for the first couple of decades due to these induced land use changes. However, the difference in net cumulative emissions from the biofuels expansion decline by about 2035 as the reductions in energy system emissions exceed further increases in emissions from land use change. Even in the absence of a policy that would limit emissions from land use change, the differences in net cumulative emissions from the biofuels scenarios reach zero by 2050, and are decreasing further over time in both cases.

  14. Climate mitigation’s impact on global and regional electric power sector water use in the 21st Century

    SciTech Connect (OSTI)

    Dooley, James J.; Kyle, G. Page; Davies, Evan

    2013-08-05

    Over the course of this coming century, global electricity use is expected to grow at least five fold and if stringent greenhouse gas emissions controls are in place the growth could be more than seven fold from current levels. Given that the electric power sector represents the second largest anthropogenic use of water and given growing concerns about the nature and extent of future water scarcity driven by population growth and a changing climate, significant concern has been expressed about the electricity sector’s use of water going forward. In this paper, the authors demonstrate that an often overlooked but absolutely critical issue that needs to be taken into account in discussions about the sustainability of the electric sector’s water use going forward is the tremendous turn over in electricity capital stock that will occur over the course of this century; i.e., in the scenarios examined here more than 80% of global electricity production in the year 2050 is from facilities that have not yet been built. The authors show that because of the large scale changes in the global electricity system, the water withdrawal intensity of electricity production is likely to drop precipitously with the result being relatively constant water withdrawals over the course of the century even in the face of the large growth in electricity usage. The ability to cost effectively reduce the water intensity of power plants with carbon dioxide capture and storage systems in particular is key to constraining overall global water use.

  15. Late-time structure of the Bunch-Davies de Sitter wavefunction

    SciTech Connect (OSTI)

    Anninos, Dionysios; Anous, Tarek; Freedman, Daniel Z.; Konstantinidis, George

    2015-11-30

    We examine the late time behavior of the Bunch-Davies wavefunction for interacting light fields in a de Sitter background. We use perturbative techniques developed in the framework of AdS/CFT, and analytically continue to compute tree and loop level contributions to the Bunch-Davies wavefunction. We consider self-interacting scalars of general mass, but focus especially on the massless and conformally coupled cases. We show that certain contributions grow logarithmically in conformal time both at tree and loop level. We also consider gauge fields and gravitons. The four-dimensional Fefferman-Graham expansion of classical asymptotically de Sitter solutions is used to show that the wavefunction contains no logarithmic growth in the pure graviton sector at tree level. Finally, assuming a holographic relation between the wavefunction and the partition function of a conformal field theory, we interpret the logarithmic growths in the language of conformal field theory.

  16. ELEMENTAL ABUNDANCES IN THE EJECTA OF OLD CLASSICAL NOVAE FROM LATE-EPOCH SPITZER SPECTRA

    SciTech Connect (OSTI)

    Helton, L. Andrew; Vacca, William D.; Gehrz, Robert D.; Woodward, Charles E.; Shenoy, Dinesh P.; Wagner, R. Mark; Evans, Aneurin; Krautter, Joachim; Schwarz, Greg J.; Starrfield, Sumner

    2012-08-10

    We present Spitzer Space Telescope mid-infrared IRS spectra, supplemented by ground-based optical observations, of the classical novae V1974 Cyg, V382 Vel, and V1494 Aql more than 11, 8, and 4 years after outburst, respectively. The spectra are dominated by forbidden emission from neon and oxygen, though in some cases, there are weak signatures of magnesium, sulfur, and argon. We investigate the geometry and distribution of the late time ejecta by examination of the emission line profiles. Using nebular analysis in the low-density regime, we estimate lower limits on the abundances in these novae. In V1974 Cyg and V382 Vel, our observations confirm the abundance estimates presented by other authors and support the claims that these eruptions occurred on ONe white dwarfs (WDs). We report the first detection of neon emission in V1494 Aql and show that the system most likely contains a CO WD.

  17. Tumor histology and location predict deep nuclei toxicity: Implications for late effects from focal brain irradiation

    SciTech Connect (OSTI)

    Plaga, Alexis; Shields, Lisa B.E.; Sun, David A.; Vitaz, Todd W.; Spalding, Aaron C.

    2012-10-01

    Normal tissue toxicity resulting from both disease and treatment is an adverse side effect in the management of patients with central nervous system malignancies. We tested the hypothesis that despite these improvements, certain tumors place patients at risk for neurocognitive, neuroendocrine, and neurosensory late effects. Defining patient groups at risk for these effects could allow for development of preventive strategies. Fifty patients with primary brain tumors underwent radiation planning with magnetic resonance imaging scan and computed tomography datasets. Organs at risk (OAR) responsible for neurocognitive, neuroendocrine, and neurosensory function were defined. Inverse-planned intensity-modulated radiation therapy was optimized with priority given to target coverage while penalties were assigned to exceeding normal tissue tolerances. Tumor laterality, location, and histology were compared with OAR doses, and analysis of variance was performed to determine the significance of any observed correlation. The ipsilateral hippocampus exceeded dose limits in frontal (74%), temporal (94%), and parietal (100%) lobe tumor locations. The contralateral hippocampus was at risk in the following tumor locations: frontal (53%), temporal (83%), or parietal (50%) lobe. Patients with high-grade glioma were at risk for ipsilateral (88%) and contralateral (73%) hippocampal damage (P <0.05 compared with other histologies). The pituitary gland and hypothalamus exceeded dose tolerances in patients with pituitary tumors (both 100%) and high-grade gliomas (50% and 75%, P <0.05 compared with other histologies), respectively. Despite application of modern radiation therapy, certain tumor locations and histologies continue to place patients at risk for morbidity. Patients with high-grade gliomas or tumors located in the frontal, temporal, or parietal lobes are at risk for neurocognitive decline, likely because of larger target volumes and higher radiation doses. Data from this study may help to stratify patients at risk for late effects to develop strategies to reduce frequency and severity of radiation sequelae.

  18. WE-D-BRE-03: Late Toxicity Following Photon Or Proton Radiotherapy in Patients with Brain Tumors

    SciTech Connect (OSTI)

    Munbodh, R; Ding, X; Yin, L; Anamalayil, S; Dorsey, J; Lustig, R; Alonso-Basanta, M

    2014-06-15

    Purpose: To identify indicators of Late Grade 3 (LG3) toxicity, late vision and hearing changes in patients treated for primary brain tumors with photon (XRT) or proton radiotherapy (PRT). Methods: We retrospectively reviewed 102 patients who received brain XRT or PRT to doses of 54 or 59.6 Gy in daily fractions of 1.8–2 Gy. Of the 80 patients (34 XRT, 39 PRT and 7 both modalities) reviewed for indicators of LG3 toxicity, 25 developed LG3 toxicity 90 to 500 days after radiotherapy completion. 55 patients had less than LG3 toxicity > 500 days after treatment. In that time, late vision and hearing changes were seen in 44 of 75 and 25 of 78 patients, respectively. The correlation between late toxicity and prescription dose, planning target volume (PTV) size, and doses to the brainstem, brain, optic chiasm, optic nerves, eyes and cochlea was evaluated. A two-tailed Fisher's exact test and Wilcoxon rank sum test were used for the statistical analysis for XRT, PRT and all patients combined. Results: Exceeding the 54 Gy-5% dose-volume brainstem constraint, but not the optic structure constraints, was significantly correlated (p < 0.05) with late vision changes in all three groups. Exceeding maximum and mean cochlear doses of 45 and 30 Gy, respectively, was a significant indicator of hearing changes (p < 0.05) in PRT patients and all patients combined. In a sub-group of 52 patients in whom the brain was contoured, the absolute brain volume receiving ≤ 50 Gy and > 60 Gy was significantly larger in patients with LG3 toxicity for all patients combined (p < 0.05). Prescription dose, brainstem dose and PTV volume were not correlated to LG3 toxicity. Conclusion: Our results indicate the importance of minimizing the brain volume irradiated, and brainstem and cochlea doses to reduce the risk of late toxicities following brain radiotherapy.

  19. Application for presidential permit OE Docket No. PP-230-4 International Transmission Company: Response to Late Motion to Intervene from PJM Interconnection LLC

    Broader source: Energy.gov [DOE]

    Response from International Transmission Company to late motion to intervene from PJM Interconnection in the matter of the application for a presidential permit authorizing International...

  20. Application for presidential permit OE Docket No. PP-230-4 International Transmission Company: Response to Late Motion to Intervene and Comments

    Broader source: Energy.gov [DOE]

    Answer of International Transmission Company to late motions to intervene and comments of Baltimore Gas and Electric Company, American Electric Power, and Pepco Holdings, Inc.

  1. Application for presidential permit OE Docket No. PP-230-4 International Transmission Company: Response to Late Motion to Intervene of New York Transmission Owners

    Broader source: Energy.gov [DOE]

    Application from International Transmission Company to construct, operate, and maintain electric transmission facilities at the U.S. - Canada Border. Response to Late Motion to Intervene of New...

  2. Examination of the role of nuclear deterrence in the 21st century: a systems analysis approach

    SciTech Connect (OSTI)

    Martz, Joseph C; Stevens, Patrice A; Branstetter, Linda; Hoover, Edward; O' Brien, Kevin; Slavin, Adam; Caswell, David

    2010-01-01

    Until very recently, an evaluation of US policy regarding deterrence and the role of its nuclear weapons arsenal as a deterrent has been largely absent in the public debate. With President's Obama embrace of a goal of a future world without nuclear weapons, issues of nuclear policy and deterrence have just recently risen to the forefront of policy discussions. The traditional role of US nuclear weapons-to deter the use of nuclear weapons by other states-endures, but is no longer unique nor even predominant. In an increasingly multi-polar world, the US now faces growing risks of nuclear weapons proliferation; the spread of weapons of mass destruction generally to non-state, substate and transnational actors; cyber, space, economic, environmental and resource threats along with the application of numerous other forms of 'soft power' in ways that are inimical to national security and to global stability. What concept of deterrence should the US seek to maintain in the 21st Century? That question remains fluid and central to the current debate. Recently there has been a renewed focusing of attention on the role of US nuclear weapons and a national discussion about what the underlying policy should be. In this environment, both the United States and Russia have committed to drastic reductions in their nuclear arsenals, while still maintaining forces sufficient to ensure unacceptable consequence in response to acts of aggression. Further, the declared nuclear powers have maintained that a limited nuclear arsenal continues to provide insurance against uncertain developments in a changing world. In this environment of US and Russian stockpile reductions, all declared nuclear states have reiterated the central role which nuclear weapons continue to provide for their supreme national security interests. Given this new environment and the challenges of the next several decades, how might the United States structure its policy and forces with regard to nuclear weapons? Many competing objectives have been stated across the spectrum of political, social, and military thought. These objectives include goals of ratification of the Comprehensive Test Ban Treaty, recommitment to further downsizing of the nuclear arsenal, embracing a long-term goal of the elimination of nuclear weapons, limitations on both the production complex and upgrades to nuclear weapons and delivery systems, and controls and constraints to limit proliferation of nuclear materials and weapons, particularly to rogue states and terrorist groups.

  3. EVALUATING SHORT-TERM CLIMATE VARIABILITY IN THE LATE HOLOCENE OF THE NORTHERN GREAT PLAINS

    SciTech Connect (OSTI)

    Joseph H. Hartman

    1999-09-01

    This literature study investigated methods and areas to deduce climate change and climate patterns, looking for short-term cycle phenomena and the means to interpret them. Many groups are actively engaged in intensive climate-related research. Ongoing research might be (overly) simplified into three categories: (1) historic data on weather that can be used for trend analysis and modeling; (2) detailed geological, biological (subfossil), and analytical (geochemical, radiocarbon, etc.) studies covering the last 10,000 years (about since last glaciation); and (3) geological, paleontological, and analytical (geochemical, radiometric, etc.) studies over millions of years. Of importance is our ultimate ability to join these various lines of inquiry into an effective means of interpretation. At this point, the process of integration is fraught with methodological troubles and misconceptions about what each group can contribute. This project has met its goals to the extent that it provided an opportunity to study resource materials and consider options for future effort toward the goal of understanding the natural climate variation that has shaped our current civilization. A further outcome of this project is a proposed methodology based on ''climate sections'' that provides spatial and temporal correlation within a region. The method would integrate cultural and climate data to establish the climate history of a region with increasing accuracy with progressive study and scientific advancement (e. g., better integration of regional and global models). The goal of this project is to better understand natural climatic variations in the recent past (last 5000 years). The information generated by this work is intended to provide better context within which to examine global climate change. The ongoing project will help to establish a basis upon which to interpret late Holocene short-term climate variability as evidenced in various studies in the northern Great Plains, northern hemisphere, and elsewhere. Finally these data can be integrated into a history of climate change and predictive climate models. This is not a small undertaking. The goals of researchers and the methods used vary considerably. The primary task of this project was literature research to (1) evaluate existing methodologies used in geologic climate change studies and evidence for short-term cycles produced by these methodologies and (2) evaluate late Holocene climate patterns and their interpretations.

  4. Very late nonfatal consequences of fractionated TBI in children undergoing bone marrow transplant

    SciTech Connect (OSTI)

    Faraci, Maura; Cohen, Amnon; Lanino, Edoardo; Sacco, Oliviero; Cabria, Manlio; De Marco, Riccardo; Stella, Gilberto; Dallorso, Sandro; Vitale, Vito; Dini, Giorgio

    2005-12-01

    Purpose: To describe long-term late consequences in children who received total body irradiation (TBI) for hematopoietic stem cell transplantation 10 years earlier. Methods and Materials: A cohort of 42 children treated with TBI between 1985 and 1993, still alive at least 10 years after fractionated TBI (FTBI), was evaluated. Twenty-five patients received FTBI at 330 cGy/day for 3 days (total dose 990 cGy), whereas 17 children were administered fractions of 200 cGy twice daily for 3 days (total dose 1200 cGy). Twenty-seven patients received autologous and 16 allogeneic hematopoietic stem cell transplantation. Median age at TBI was 6.3 years, and 18.4 years at most recent follow-up. Results: Cataract was diagnosed in 78% of patients after a median of 5.7 years. Hypothyroidism was detected in 12%, whereas thyroid nodules were observed in 60% of our population after a median interval of 10.2 years. Patients treated with 990 cGy developed thyroid nodules more frequently than those treated with 1200 cGy (p = 0.0002). Thyroid carcinoma was diagnosed in 14% of the total population. Females who received FTBI after menarche more frequently developed temporary ovarian dysfunction than those treated before menarche, but cases of persistent ovarian dysfunction did not differ between the two groups. Indirect signs of germinal testicular dysfunction were detected in 87% of males. Restrictive pulmonary disease was observed in 74% of patients. Osteochondroma was found in 29% of patients after a median interval of 9.2 years. This latter complication appeared more frequently in patients irradiated before the age of 3 years (p < 0.001). Conclusions: This study shows that late effects that are likely permanent, although not fatal, are frequent in survivors 10 years after TBI. However, some of the side effects observed shortly after TBI either disappeared or remained unchanged without signs of evolution. Monitoring is recommended to pursue secondary prevention strategies and counseling on family planning.

  5. Predictors of Severe Acute and Late Toxicities in Patients With Localized Head-and-Neck Cancer Treated With Radiation Therapy

    SciTech Connect (OSTI)

    Meyer, Francois; Fortin, Andre; Wang, Chang Shu; Liu, Geoffrey

    2012-03-15

    Purpose: Radiation therapy (RT) causes acute and late toxicities that affect various organs and functions. In a large cohort of patients treated with RT for localized head and neck cancer (HNC), we prospectively assessed the occurrence of RT-induced acute and late toxicities and identified characteristics that predicted these toxicities. Methods and Materials: We conducted a randomized trial among 540 patients treated with RT for localized HNC to assess whether vitamin E supplementation could improve disease outcomes. Adverse effects of RT were assessed using the Radiation Therapy Oncology Group Acute Radiation Morbidity Criteria during RT and one month after RT, and the Radiation Therapy Oncology Group/European Organization for Research and Treatment of Cancer Late Radiation Morbidity Scoring Scheme at six and 12 months after RT. The most severe adverse effect among the organs/tissues was selected as an overall measure of either acute or late toxicity. Grade 3 and 4 toxicities were considered as severe. Stepwise multivariate logistic regression models were used to identify all independent predictors (p < 0.05) of acute or late toxicity and to estimate odds ratios (OR) for severe toxicity with their 95% confidence intervals (CI). Results: Grade 3 or 4 toxicity was observed in 23% and 4% of patients, respectively, for acute and late toxicity. Four independent predictors of severe acute toxicity were identified: sex (female vs. male: OR = 1.72, 95% confidence interval [CI]: 1.06-2.80), Karnofsky Performance Status (OR = 0.67 for a 10-point increment, 95% CI: 0.52-0.88), body mass index (above 25 vs. below: OR = 1.88, 95% CI: 1.22-2.90), TNM stage (Stage II vs. I: OR = 1.91, 95% CI: 1.25-2.92). Two independent predictors were found for severe late toxicity: female sex (OR = 3.96, 95% CI: 1.41-11.08) and weight loss during RT (OR = 1.26 for a 1 kg increment, 95% CI: 1.12-1.41). Conclusions: Knowledge of these predictors easily collected in a clinical setting could help tailoring therapies to reduce toxicities among patients treated with RT for HNC.

  6. Diagenetic features of Trenton Limestone in northern Indiana: petrographic evidence for Late (Mesogenetic) Dolostone

    SciTech Connect (OSTI)

    Fara, D.R.

    1986-08-01

    Three conventional cores of the entire Trenton section were examined in detail by in-depth visual description, analysis of more than 250 thin sections, scanning electron microscopy, and x-ray diffraction. The cores are located in the northern half of Indiana where they span the major dolostone pinch-out that is the trap for the prolific Trenton oil and gas field. The Trenton Limestone is completely dolomitized in northern Indiana. Dolostone abundance decreases to the south where the dolostone is restricted to the upper few feet of the formation. Two major types of dolostone are recognized. The top 5-20 ft of the Trenton cores consists of medium crystalline nonporous xenotopic ferroan dolostone. Mesogenetic dewatering of the overlying Maquoketa shale is the proposed dolomitizing mechanisms for this ferroan dolostone cap. Below the ferroan dolostone cap in northern Indiana is coarsely crystalline dolostone, which consists of thin intercalated subfacies of porous idiotopic and nonporous xenotopic dolostone. This is the dominant dolostone type and is the reservoir in the Trenton field. The coarsely crystalline dolostone postdates the ferroan dolostone cap, chert nodule formation, and initial pressure solution. Therefore, this dolostone is considered to have formed relatively late in the diagenetic history of the Trenton under mesogenetic conditions. In the northernmost core, nearly all of the secondary dolomitic porosity is plugged by poikilotopic gypsum and minor amounts of calcite and celestite. Other diagenetic features observed in Trenton are also discussed, including silicification, ferroan calcite cement, upper Trenton contact formation, hardgrounds, and pressure solution.

  7. Synsedimentary tectonics in Late Cretaceous-Early Tertiary pelagic basin of northern Apennines, Italy

    SciTech Connect (OSTI)

    Montanari, A.; Chan, L.S.; Alvarez, W.

    1987-05-01

    The sequence of Upper Cretaceous-Lower Tertiary pelagic limestones in the Umbria-Marches Apennines of Italy have recorded, with remarkable continuity, the geologic history of an epeiric sea on the eastern continental margin of the Ligurian Ocean during a time of widespread tectonism in the western Tethys domain. Sedimentary facies and paleocurrent analyses indicate that intrabasinal depocenters and structural highs have formed in response to extensional tectonic movements which started to affect the central part of the paleobasin in the early Turonian. The topography of the paleobasin was probably controlled by a complex pattern of buried fault blocks formed during the passive margin phase of the western Tethys and then reactivated in the Turonian after a prolonged time (Aptian to Cenomanian) of tectonic quiescence. Calcareous turbidites essentially made of remobilized pelagic mud were generated on the newly formed intrabasinal slopes and deposited in the adjacent depocenters. Conspicuous sedimentary events such as maxima in turbiditic deposition and soft-sediment slumps in these intrabasinal depocenters are attributed to major syndepositional earthquakes of regional extent. A detailed event-stratigraphy based on these sedimentary features indicates that the level of syndepositional tectonic activity reached a peak in the late Maastrichtian-early Paleocene and rapidly diminished in the Eocene.

  8. Overexpression of Late Embryogenesis Abundant 14 enhances Arabidopsis salt stress tolerance

    SciTech Connect (OSTI)

    Jia, Fengjuan Qi, Shengdong Li, Hui Liu, Pu Li, Pengcheng Wu, Changai Zheng, Chengchao Huang, Jinguang

    2014-11-28

    Highlights: It is the first time to investigate the biological function of AtLEA14 in salt stress response. AtLEA14 enhances the salt stress tolerance both in Arabidopsis and yeast. AtLEA14 responses to salt stress by stabilizing AtPP2-B11, an E3 ligase, under normal or salt stress conditions. - Abstract: Late embryogenesis abundant (LEA) proteins are implicated in various abiotic stresses in higher plants. In this study, we identified a LEA protein from Arabidopsis thaliana, AtLEA14, which was ubiquitously expressed in different tissues and remarkably induced with increased duration of salt treatment. Subcellular distribution analysis demonstrated that AtLEA14 was mainly localized in the cytoplasm. Transgenic Arabidopsis and yeast overexpressing AtLEA14 all exhibited enhanced tolerance to high salinity. The transcripts of salt stress-responsive marker genes (COR15a, KIN1, RD29B and ERD10) were overactivated in AtLEA14 overexpressing lines compared with those in wild type plants under normal or salt stress conditions. In vivo and in vitro analysis showed that AtLEA14 could effectively stabilize AtPP2-B11, an important E3 ligase. These results suggested that AtLEA14 had important protective functions under salt stress conditions in Arabidopsis.

  9. KELT-3b: A HOT JUPITER TRANSITING A V = 9.8 LATE-F STAR

    SciTech Connect (OSTI)

    Pepper, Joshua; Siverd, Robert J.; Stassun, Keivan G.; Cargile, Phillip A.; Dhital, Saurav; Beatty, Thomas G.; Gaudi, B. Scott; Eastman, Jason; Fulton, Benjamin J.; Collins, Karen; Latham, David W.; Bieryla, Allyson; Calkins, Michael L.; Esquerdo, Gilbert A.; Berlind, Perry; Buchhave, Lars A.; Jensen, Eric L. N.; Manner, Mark; Penev, Kaloyan; Crepp, Justin R.; and others

    2013-08-10

    We report the discovery of KELT-3b, a moderately inflated transiting hot Jupiter with a mass of 1.477{sub -0.067}{sup +0.066} M{sub J}, radius of 1.345 {+-} 0.072 R{sub J}, and an orbital period of 2.7033904 {+-} 0.000010 days. The host star, KELT-3, is a V = 9.8 late F star with M{sub *} = 1.278{sub -0.061}{sup +0.063} M{sub sun}, R{sub *} = 1.472{sub -0.067}{sup +0.065} R{sub sun}, T{sub eff}= 6306{sub -49}{sup +50} K, log (g) = 4.209{sub -0.031}{sup +0.033}, and [Fe/H] = 0.044{sub -0.082}{sup +0.080}, and has a likely proper motion companion. KELT-3b is the third transiting exoplanet discovered by the KELT survey, and is orbiting one of the 20 brightest known transiting planet host stars, making it a promising candidate for detailed characterization studies. Although we infer that KELT-3 is significantly evolved, a preliminary analysis of the stellar and orbital evolution of the system suggests that the planet has likely always received a level of incident flux above the empirically identified threshold for radius inflation suggested by Demory and Seager.

  10. BUILDING LATE-TYPE SPIRAL GALAXIES BY IN-SITU AND EX-SITU STAR FORMATION

    SciTech Connect (OSTI)

    Pillepich, Annalisa; Madau, Piero; Mayer, Lucio

    2015-02-01

    We analyze the formation and evolution of the stellar components in ''Eris'', a 120pc resolution cosmological hydrodynamic simulation of a late-type spiral galaxy. The simulation includes the effects of a uniform UV background, a delayed-radiative-cooling scheme for supernova feedback, and a star formation recipe based on a high gas density threshold. It allows a detailed study of the relative contributions of ''in-situ'' (within the main host) and ''ex-situ'' (within satellite galaxies) star formation to each major Galactic component in a close Milky Way analog. We investigate these two star-formation channels as a function of galactocentric distance, along different lines of sight above and along the disk plane, and as a function of cosmic time. We find that: (1) approximately 70% of today's stars formed in-situ; (2) more than two thirds of the ex-situ stars formed within satellites after infall; (3) the majority of ex-situ stars are found today in the disk and in the bulge; (4) the stellar halo is dominated by ex-situ stars, whereas in-situ stars dominate the mass profile at distances ? 5 kpc from the center at high latitudes; and (5) approximately 25% of the inner, r ? 20 kpc, halo is composed of in-situ stars that have been displaced from their original birth sites during Eris' early assembly history.

  11. MOA-2010-BLG-328Lb: A sub-Neptune orbiting very late M dwarf?

    SciTech Connect (OSTI)

    Furusawa, K.; Abe, F.; Itow, Y.; Masuda, K.; Matsubara, Y.; Udalski, A.; Sumi, T.; Bennett, D. P.; Bond, I. A.; Ling, C. H.; Gould, A.; Jørgensen, U. G.; Snodgrass, C.; Prester, D. Dominis; Albrow, M. D.; Botzler, C. S.; Freeman, M.; Chote, P.; Harris, P.; Fukui, A. E-mail: liweih@astro.ucla.edu E-mail: rzellem@lpl.arizona.edu; Collaboration: MOA Collaboration; OGLE Collaboration; μFUN Collaboration; MiNDSTEp Consortium; RoboNet Collaboration; PLANET Collaboration; and others

    2013-12-20

    We analyze the planetary microlensing event MOA-2010-BLG-328. The best fit yields host and planetary masses of M {sub h} = 0.11 ± 0.01 M {sub ☉} and M {sub p} = 9.2 ± 2.2 M {sub ⊕}, corresponding to a very late M dwarf and sub-Neptune-mass planet, respectively. The system lies at D {sub L} = 0.81 ± 0.10 kpc with projected separation r = 0.92 ± 0.16 AU. Because of the host's a priori unlikely close distance, as well as the unusual nature of the system, we consider the possibility that the microlens parallax signal, which determines the host mass and distance, is actually due to xallarap (source orbital motion) that is being misinterpreted as parallax. We show a result that favors the parallax solution, even given its close host distance. We show that future high-resolution astrometric measurements could decisively resolve the remaining ambiguity of these solutions.

  12. Gold deposits in the late Archaean Nzega-Igunga greenstone belt, central plateau of tanzania

    SciTech Connect (OSTI)

    Feiss, P.G.; Siyomana, S.

    1985-01-01

    2.2 m oz of gold have been produced, since 1935, from late Archaean (2480-2740 Ma) greenstone belts of the Central Plateau, Tanzania. North and east of Nzega (4/sup 0/12'S, 3/sup 0/11'E), 18% of the exposed basement, mainly Dodoman schists and granites, consists of metavolcanics and metasediments of the Nyanzian and Kavirondian Series. Four styles of mineralization are observed. 1. Stratabound quartz-gold veins with minor sulfides. Host rocks are quartz porphyry, banded iron formation (BIF), magnetite quartzite, and dense, cherty jasperite at the Sekenke and Canuck mines. The Canuck veins are on strike from BIF's in quartz-eye porphyry of the Igusule Hills. 2. Stratabound, disseminated gold in coarse-grained, crowded feldspar porphyry with lithic fragments and minor pyrite. At Bulangamilwa, the porphyry is conformable with Nyanzian-aged submarine (.) greenstone, volcanic sediment, felsic volcanics, and sericite phyllite. The deposits are on strike with BIF of the Wella Hills, which contains massive sulfide with up to 15% Pb+Zn. 3. Disseminated gold in quartz-albite metasomes in Nyanzian greenstones. At Kirondatal, alteration is associated with alaskites and feldspar porphyry dikes traceable several hundred meters into post-Dodoman diorite porphyry. Gold is with pyrite, arsenopyrite, pyrrhotite, minor chalcopyrite, and sphalerite as well as tourmalinite and silica-cemented breccias. 4. Basal Kavirondian placers in metaconglomerates containing cobbles and boulders of Dodoman and Nyanzian rocks several hundred meters up-section from the stratabound, disseminated mineralization at Bulangamilwa.

  13. Novel, highly expressed late nodulin gene (LjNOD16) from Lotus japonicus

    SciTech Connect (OSTI)

    Kapranov, P.; Bruijn, F.J. de; Szczyglowski, K.

    1997-04-01

    We have isolated a Lotus japonicus cDNA corresponding to a highly abundant, late nodule-specific RNA species that encodes a polypeptide with a predicted molecular mass of 15.6 kD. The protein and its corresponding gene were designated NIj16 and LjNOD16, respectively. LjNOD16 was found to be expressed only in the infected cells of L. japonicus nodules. Related DNA sequences could be identified in the genomes of both Glycine max and Medicago sativa. In the latter, a homologous mRNA species was detected in the nodules. Unlike LiNOD16, its alfalfa homologs appear to represent low-abundance mRNA species. However, the proteins corresponding to the LjNOD16 and its alfalfa homolog could be detected at similar levels in nodules but not in roots of both legume species. The predicted amino acid sequence analysis of nodulin NIj16 revealed the presence of a long {alpha}-helical region and a positively charged C terminus. The former domain has a very high propensity to form a coiled-coil type structure, indicating that nodulin NIj16 may interact with an as-yet-unidentified protein target(s) in the nodule-infected cells. Homology searches revealed no significant similarities to any known sequences in the databases, with the exception of two related, anonymous Arabidopsis expressed sequence tags.

  14. The abundance properties of nearby late-type galaxies. I. The data

    SciTech Connect (OSTI)

    Pilyugin, L. S.; Grebel, E. K.; Kniazev, A. Y. E-mail: grebel@ari.uni-heidelberg.de

    2014-06-01

    We investigate the oxygen and nitrogen abundance distributions across the optical disks of 130 nearby late-type galaxies using around 3740 published spectra of H II regions. We use these data in order to provide homogeneous abundance determinations for all objects in the sample, including H II regions in which not all of the usual diagnostic lines were measured. Examining the relation between N and O abundances in these galaxies we find that the abundances in their centers and at their isophotal R {sub 25} disk radii follow the same relation. The variation in N/H at a given O/H is around 0.3 dex. We suggest that the observed spread in N/H may be partly caused by the time delay between N and O enrichment and the different star formation histories in galaxies of different morphological types and dimensions. We study the correlations between the abundance properties (central O and N abundances, radial O and N gradients) of a galaxy and its morphological type and dimension.

  15. Venezuelan equine encephalitis virus entry mechanism requires late endosome formation and resists cell membrane cholesterol depletion

    SciTech Connect (OSTI)

    Kolokoltsov, Andrey A.; Fleming, Elisa H.; Davey, Robert A. . E-mail: radavey@utmb.edu

    2006-04-10

    Virus envelope proteins determine receptor utilization and host range. The choice of receptor not only permits specific targeting of cells that express it, but also directs the virus into specific endosomal trafficking pathways. Disrupting trafficking can result in loss of virus infectivity due to redirection of virions to non-productive pathways. Identification of the pathway or pathways used by a virus is, thus, important in understanding virus pathogenesis mechanisms and for developing new treatment strategies. Most of our understanding of alphavirus entry has focused on the Old World alphaviruses, such as Sindbis and Semliki Forest virus. In comparison, very little is known about the entry route taken by more pathogenic New World alphaviruses. Here, we use a novel contents mixing assay to identify the cellular requirements for entry of a New World alphavirus, Venezuelan equine encephalitis virus (VEEV). Expression of dominant negative forms of key endosomal trafficking genes shows that VEEV must access clathrin-dependent endocytic vesicles for membrane fusion to occur. Unexpectedly, the exit point is different from Old World alphaviruses that leave from early endosomes. Instead, VEEV also requires functional late endosomes. Furthermore, unlike the Old World viruses, VEEV entry is insensitive to cholesterol sequestration from cell membranes and may reflect a need to access an endocytic compartment that lacks cholesterol. This indicates fundamental differences in the entry route taken by VEEV compared to Old World alphaviruses.

  16. Laboratories for the 21st Century: Case Studies; National Renewable Energy Laboratory, Science and Technology Facility, Golden, Colorado

    SciTech Connect (OSTI)

    Not Available

    2007-03-01

    This publication is one in series of case studies for "Laboratories for the 21st Century," a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy Federal Energy Management Program. It is intended for those who plan to design and construct public and private-sector laboratory buildings. This case study describes the Science and Technology Facility, a new laboratory at NREL that incorporated energy-efficient and sustainable design features including underfloor air distribution in offices, daylighting, and process cooling.

  17. The Importance of Establishing and Maintaining Continuity of Knowledge during 21st Century Nuclear Fuel Cycle Activities

    SciTech Connect (OSTI)

    Pickett, Chris A; Rowe, Nathan C; Younkin, James R; Wishard, Bernard; Bean, Robert; Blair, Dianna; Lawson, Ray; Weeks, George; Tolk, Keith

    2012-01-01

    During this century, the entire nuclear fuel cycle will expand and become increasingly more global, taxing both the resources and capabilities of the International Atomic Energy Agency (IAEA) to maintain an effective Continuity of Knowledge (CoK) and its ability to provide timely detection of diversion. Uranium that currently is mined and milled in one country will be converted, enriched, and fabricated into fuel for reactors in an expanding set of new countries. This expansion will make it harder to guarantee that regional activities stay regional and that diversion detection is timely unless new and sustainable tools are developed to improve inspector effectiveness. To deal with this emerging reality, the IAEA must increase its use of unattended monitoring and employ new tools and methods that enhance CoK during all phases of the fuel cycle. This approach will help provide useful information to aid in detecting undeclared activities and create opportunities for timely and appropriate responses to events well before they enter phases of greater concern (e.g., enrichment). The systems that maintain CoK of safeguarded assets rely on containment and surveillance (C/S) technologies. The 21st century fuel cycle will require increased use of these technologies and systems, plus greater implementation of unattended systems that can securely collect data when inspectors are not present.

  18. AmeriFlux US-Dix Fort Dix

    SciTech Connect (OSTI)

    Clark, Ken

    2016-01-01

    This is the AmeriFlux version of the carbon flux data for the site US-Dix Fort Dix. Site Description - The Fort Dix site is located in the upland forests of the New Jersey Pine Barrens, the largest continuous forested landscape on the Northeastern coastal plain. Upland forests occupy 62% of the 1.1 million acre Pine Barrens and can be divided into three dominant stand types, Oak/Pine (19.1%), Pine/Oak (13.1%), and Pitch Pine/Scrub oak (14.3%). The majority of mature upland forests are the product of regeneration following late 19th century logging and charcoaling activities. Gypsy moths first appeared in the Pine Barrens of New Jersey in 1966. Since the time of arrival, the upland forest stands have undergone several episodes of defoliation, the most significant occurred in 1972, 1981, and 1990. In recent years, the overstory oaks and understory oaks and shrubs of the Fort Dix stand, underwent two periods of defoliation by Gypsy moth, in 2006 and 2007. During these two years, maximum leaf area reached only 70% of the 2005 summer maximum.

  19. Thermonuclear supernovae: probing magnetic fields by positrons and late-time IR line profiles

    SciTech Connect (OSTI)

    Penney, R.; Hoeflich, P. E-mail: rpenney@g.clemson.edu

    2014-11-01

    We show the importance of γ and positron transport for the formation of late-time spectra in Type Ia supernovae (SNe Ia). The goal is to study the imprint of magnetic fields (B) on late-time IR line profiles, particularly the [Fe II] feature at 1.644 μm, which becomes prominent two to three months after the explosion. As a benchmark, we use the explosion of a Chandrasekhar mass (M {sub Ch}) white dwarf (WD) and, specifically, a delayed detonation model that can reproduce the light curves and spectra for a Branch-normal SN Ia. We assume WDs with initial magnetic surface fields between 1 and 10{sup 9} G. We discuss large-scale dipole and small-scale magnetic fields. We show that positron transport effects must be taken into account for the interpretation of emission features starting at about one to two years after maximum light, depending on the size of B. The [Fe II] line profile and its evolution with time can be understood in terms of the overall energy input by radioactive decay and the transition from a γ-ray to a positron-dominated regime. We find that the [Fe II] line at 1.644 μm can be used to analyze the overall chemical and density structure of the exploding WD up to day 200 without considering B. At later times, positron transport and magnetic field effects become important. After about day 300, the line profile allows one to probe the size of the B-field. The profile becomes sensitive to the morphology of B at about day 500. In the presence of a large-scale dipole field, a broad line is produced in M {sub Ch} mass explosions that may appear flat-topped or rounded depending on the inclination at which the SN is observed. Small or no directional dependence of the spectra is found for small-scale B. We note that narrow-line profiles require central {sup 56}Ni as shown in our previous studies. Persistent broad-line, flat-topped profiles require high-density burning, which is the signature of a WD close to M {sub Ch}. Good time coverage is required to separate the effects of optical depth, the size and morphology of B, and the aspect angle of the observer. The spectra require a resolution of about 500 km s{sup –1} and a signal-to-noise ratio of about 20%. Two other strong near-IR spectral features at about 1.5 and 1.8 μm are used to demonstrate the importance of line blending, which may invalidate a kinematic interpretation of emission lines. Flat-topped line profiles between 300 and 400 days have been observed and reported in the literature. They lend support for M {sub Ch} mass explosions in at least some cases and require magnetic fields equal to or in excess of 10{sup 6} G. We briefly discuss the effects of the size and morphology of B on light curves, as well as limitations. We argue that line profiles are a more direct measurement of B than light curves because they measure both the distribution of {sup 56}Ni and the redistribution of the energy input by positrons rather than the total energy input. Finally, we discuss possible mechanisms for the formation of high B-fields and the limitations of our analysis.

  20. FORMING REALISTIC LATE-TYPE SPIRALS IN A {Lambda}CDM UNIVERSE: THE ERIS SIMULATION

    SciTech Connect (OSTI)

    Guedes, Javiera; Madau, Piero [Department of Astronomy and Astrophysics, University of California, 1156 High Street, Santa Cruz, CA 95064 (United States); Callegari, Simone [Institute for Theoretical Physics, University of Zuerich, Winterthurerstrasse 190, CH-9057 Zuerich (Switzerland); Mayer, Lucio [Institute for Astronomy, ETH Zuerich, Wolgang-Pauli-Strasse 27, 8093 Zuerich (Switzerland)

    2011-12-01

    Simulations of the formation of late-type spiral galaxies in a cold dark matter ({Lambda}CDM) universe have traditionally failed to yield realistic candidates. Here we report a new cosmological N-body/smooth particle hydrodynamic simulation of extreme dynamic range in which a close analog of a Milky Way disk galaxy arises naturally. Named 'Eris', the simulation follows the assembly of a galaxy halo of mass M{sub vir} = 7.9 Multiplication-Sign 10{sup 11} M{sub Sun} with a total of N = 18.6 million particles (gas + dark matter + stars) within the final virial radius, and a force resolution of 120 pc. It includes radiative cooling, heating from a cosmic UV field and supernova explosions (blastwave feedback), a star formation recipe based on a high gas density threshold (n{sub SF} = 5 atoms cm{sup -3} rather than the canonical n{sub SF} = 0.1 atoms cm{sup -3}), and neglects any feedback from an active galactic nucleus. Artificial images are generated to correctly compare simulations with observations. At the present epoch, the simulated galaxy has an extended rotationally supported disk with a radial scale length R{sub d} = 2.5 kpc, a gently falling rotation curve with circular velocity at 2.2 disk scale lengths of V{sub 2.2} = 214 km s{sup -1}, an i-band bulge-to-disk ratio B/D = 0.35, and a baryonic mass fraction within the virial radius that is 30% below the cosmic value. The disk is thin, has a typical H I-to-stellar mass ratio, is forming stars in the region of the {Sigma}{sub SFR}-{Sigma}{sub HI} plane occupied by spiral galaxies, and falls on the photometric Tully-Fisher and the stellar-mass-halo-virial-mass relations. Hot (T > 3 Multiplication-Sign 10{sup 5} K) X-ray luminous halo gas makes up only 26% of the universal baryon fraction and follows a 'flattened' density profile {proportional_to}r{sup -1.13} out to r = 100 kpc. Eris appears then to be the first cosmological hydrodynamic simulation in which the galaxy structural properties, the mass budget in the various components, and the scaling relations between mass and luminosity are all consistent with a host of observational constraints. A twin simulation with a low star formation density threshold results in a galaxy with a more massive bulge and a much steeper rotation curve, as in previously published work. A high star formation threshold appears therefore key in obtaining realistic late-type galaxies, as it enables the development of an inhomogeneous interstellar medium where star formation and heating by supernovae occur in a clustered fashion. The resulting outflows at high redshifts reduce the baryonic content of galaxies and preferentially remove low-angular-momentum gas, decreasing the mass of the bulge component. Simulations of even higher resolution that follow the assembly of galaxies with different merger histories shall be used to verify our results.

  1. Climatic change and the planktonic foraminiferal species - coincidences in some Late Neogene clades

    SciTech Connect (OSTI)

    Malmgren, B.A.; Berggren, W.A.

    1985-01-01

    Planktonic foraminifera adjust their position in the water column through modifications in size, shape, and external ornamention (keel, costae, etc.); this is useful in exploiting new ecologic niches. Evolutionary change may be triggered by paleoceanographic change, for example, low sea level, often associated with cool climate, may result in enhanced vertical mixing in the upper water column, decrease in density stratification and available niches. Phyletic evolution is well documented in several clades of Late Neogene planktonic foraminifera. Accelerated or decelerated evolutionary rates in these clades may be due to change in selection pressure in response to changing paleoceanographic conditions. The latest Miocene was marked by low sea level and cool climate; the earliest Pliocene by higher sea level and warmer, more stable climate. In response, size (cross-sectional area) in the Globorotalia tumida clade trebled, test acquired thicker encrustation, ventral/dorsal height proportions changed; the keel was lost in the Globorotalia inflata clade, and chambers became rounded rather than conical; and supplementary apertures appeared in the Sphaeroidinellopsis-Sphaeroidinella clade. The beginning of gradually increasing conicality in the G. inflata clade, which continued to the Miocene-Pliocene boundary, coincided with falling sea level and depletion of delta/sup 13/C in sea water at about 6 ma. Lowered sea level and cooler climate in the middle Pliocene (3.2 Ma) may be responsible for a relatively rapid increase in frequency of supplementary apertures (from 20 to 100 %) in the Sphaeroidinellopsis-Sphaeroidinella clade. This event also coincided with a stepwise increase in benthonic delta/sup 18/O and a brief interval of increased planktonic delta/sup 18/O.

  2. Similarities in shoreline response to Late Holocene lake-level variations in Lake Michigan

    SciTech Connect (OSTI)

    Thompson, T.A.; Baedke, S.J. )

    1992-01-01

    Beach ridges dating back to 2600 B.P. occur in embayments throughout Lake Michigan. Similarities in their geomorphic development are interpreted to be the product of three scales of lake-level variation. The largest of these embayments is roughly coincident with the Indiana shore of Lake Michigan known as the Toleston Beach. In the western part of the Toleston Beach, more than 150 beach ridges have formed in response to short-term variations in lake level occurring at a quasi-periodic interval of about 30 years. Bundles of five of these ridges merge eastward to form higher relief beach ridges that record an intermediate-term lake-level variation of about 150 years. Both the 30-year and 150-year lake-level events are superimposed on a longer term lake-level variation of about 600 years. Beach-ridge development in northern Lake Michigan reflects a similar response to late Holocene lake-level variations. For example, the southern embayment of the Platte Bay Unit of the Sleeping Bear Dunes National Lakeshore also contains a series of beach ridges that record three scales of lake-level variation. In this area, most of the beach ridges formed between 2600 and 1200 B.P., with individual ridges forming about every 29 years. Also recorded in this embayment are the time equivalent groupings of beach ridges every 150 and 600 years. Although embayments containing beach ridges in Lake Michigan may record different short-term lake-level variations in response to local depositional conditions within the embayment, the 150-year and 600-year variations appear to be represented throughout the lake. Relative lake-level curves for the Toleston Beach and the Platte Bay embayment are displaced by approximately 1.5 m. This displacement is accounted for under current models of isostasy for Lake Michigan.

  3. Late Pleistocene landslide-dammed lakes along the Rio Grande, White Rock Canyon, New Mexico

    SciTech Connect (OSTI)

    Reneau, S.L.; Dethier, D.P.

    1996-11-01

    Massive slump complexes composed of Pliocene basaltic rocks and underlying Miocene and Pliocene sediments flank the Rio Grande along 16 km of northern White Rock Canyon, New Mexico. The toe area of at least one slump complex was active in the late Pleistocene, damming the Rio Grande at least four times during the period from 18 to 12 {sup 14}C ka and impounding lakes that extended 10-20 km upriver. Stratigraphic relationships and radiocarbon age constraints indicate that three separate lakes formed between 13.7 and 12.4 {sup 14}C ka. The age and dimensions of the ca. 12.4 ka lake are best constrained; it had an estimated maximum depth of {approx}30 m, a length of {approx}13 km, a surface area of {approx}2.7 km{sup 2}, and an initial volume of {approx}2.5 x 10{sup 7} m{sup 3}. The youngest landslide-dammed lakes formed during a period of significantly wetter regional climate, strongly suggesting that climate changes were responsible for reactivation of the slump complexes. We are not certain about the exact triggering mechanisms for these landslides, but they probably involved removal of lateral support due to erosion of the slope base by the Rio Grande during periods of exceptionally high flood discharge or rapid incision; increased pore pressures associated with higher water tables; higher seepage forces at sites of ground-water discharge; or some combination of these processes. Seismic shaking could also have contributed to triggering of some of the landslides, particularly if aided by wet antecedent conditions. 54 refs., 19 figs., 3 tabs.

  4. Late Quaternary paleodune deposits in Abu Dhabi Emirate, UAF: Paleoclimatic implications

    SciTech Connect (OSTI)

    Brouwers, E.M.; Bown, T.M. (Geological Survey, Denver, CO (United States)); Hadley, D.G. (Geological Survey, Reston, VA (United States))

    1993-04-01

    Remnants of late Quaternary paleodunes are exposed near the coast of the Arabian Gulf and in large inland playas and interdunal areas in central and western Abu Dhabi Emirate over a distance of >45 km normal to the coast. Paleodunes occur south of Madinat Zayed (lat. 23[degree]35 N), which marks the northern limit of a modern dune field that grades into the mega-dune sand sea of the ar Rub al Khali, Saudi Arabia. Coastal paleodunes are composed of weakly cemented millolid foraminifers, ooids, and rounded biogenic grains, whereas inland and southward the paleodunes show a progressive increase in the proportion of eolian quartz sand. The paleodunes exhibit large-scale trough foresets in remnant exposures 0.5 to 10 m thick, indicating paleowind directions from 65[degree] to 184[degree] (dominantly southeast transport). Scattered paleoplaya remnants provide paleodune scale. Paleoplaya deposits form buttes 30--50 m high. If coeval with the Paleodunes, large-scale paleodune fields are implied (100+ m high), comparable to star dunes and sand mountains at the northwestern edge of the ar Rub al Khali. Based on U-Th isotopic analyses, the carbonate paleodune sands are >160ka and probably >250ka. The carbonate source was a shallow, nearly dry Arabian Gulf at a time when large areas were exposed during a low sea-level stand. Paleowind direction indicates that Pleistocene prevailing winds were northwesterly, the direction of the dominant (winter shamal) wind today. The geographic extend and implied magnitude of the paleodunes suggest large-scale eolian transport of carbonate sand during the Pleistocene disiccation, and admixed quartz sand identifies a youthful stage of contemporaneous evolution of the ar Rub al Khali. Wave-eroded paleodunes probably floor much of the present-day Gulf and extend beneath the modern dunes and sand mountains.

  5. Laboratories for the 21st Century: Best Practices; Energy Recovery in Laboratory Facilities (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-06-01

    This guide regarding energy recovery is one in a series on best practices for laboratories. It was produced by Laboratories for the 21st Century ('Labs 21'), a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy. Laboratories typically require 100% outside air for ventilation at higher rates than other commercial buildings. Minimum ventilation is typically provided at air change per hour (ACH) rates in accordance with codes and adopted design standards including Occupational Safety and Health Administration (OSHA) Standard 1910.1450 (4 to 12 ACH - non-mandatory) or the 2011 American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) Applications Handbook, Chapter 16 - Laboratories (6 to 12 ACH). While OSHA states this minimum ventilation rate 'should not be relied on for protection from toxic substances released into the laboratory' it specifically indicates that it is intended to 'provide a source of air for breathing and for input to local ventilation devices (e.g., chemical fume hoods or exhausted bio-safety cabinets), to ensure that laboratory air is continually replaced preventing the increase of air concentrations of toxic substances during the working day, direct air flow into the laboratory from non-laboratory areas and out to the exterior of the building.' The heating and cooling energy needed to condition and move this outside air can be 5 to 10 times greater than the amount of energy used in most office buildings. In addition, when the required ventilation rate exceeds the airflow needed to meet the cooling load in low-load laboratories, additional heating energy may be expended to reheat dehumidified supply air from the supply air condition to prevent over cooling. In addition to these low-load laboratories, reheat may also be required in adjacent spaces such as corridors that provide makeup air to replace air being pulled into negative-pressure laboratories. Various types of energy recovery devices and systems can substantially reduce heating and cooling energy required for conditioning spaces in laboratories. Heating and cooling systems can be downsized when energy recovery is used because these systems reduce peak heating and cooling requirements. Heating and cooling systems can also be downsized by capturing heat generated in high-load spaces and transferring it to spaces requiring reheat. There are many opportunities for energy recovery in laboratories. This guide includes descriptions of several air-to-air energy recovery devices and methods, such as using enthalpy wheels (Figure 1), heat pipes, or run-around loops in new construction. These devices generally recover energy from exhaust air. This recovered energy is used to precondition supply air during both cooling and heating modes of operation. In addition to air-to-air energy recovery options, this guide includes a description of a water-to-water heat recovery system that collects heat from high-load spaces and transfers it to spaces that require reheat. While air-to-air recovery devices provide significant energy reduction, in some laboratory facilities the amount of energy available in the exhaust air exceeds the pre-heat and pre-cooling needed to maintain supply air conditions. During these periods of time, controls typically reduce the energy recovery capacity to match the reduced load. If the energy recovered in the exhaust is not needed then it is rejected from the facility. By using a water-to-water recovery system, it is possible to significantly reduce overall building energy use by reusing heating or cooling energy generated in the building before it is rejected to the outdoors. Laboratory managers are encouraged to perform a life-cycle cost analysis of an energy-recovery technology to determine the feasibility of its application in their laboratory. Usually, the shortest payback periods occur when the heating and cooling load reduction provided by an energy recovery system allows the laboratory to install and use smaller heating (e.g., hot water or steam) and cooling (e.g., c

  6. Diffusion Tensor Imaging of Normal-Appearing White Matter as Biomarker for Radiation-Induced Late Delayed Cognitive Decline

    SciTech Connect (OSTI)

    Chapman, Christopher H.; Nagesh, Vijaya; Sundgren, Pia C.; Buchtel, Henry; Chenevert, Thomas L.; Junck, Larry; Lawrence, Theodore S.; Tsien, Christina I.; Cao, Yue

    2012-04-01

    Purpose: To determine whether early assessment of cerebral white matter degradation can predict late delayed cognitive decline after radiotherapy (RT). Methods and Materials: Ten patients undergoing conformal fractionated brain RT participated in a prospective diffusion tensor magnetic resonance imaging study. Magnetic resonance imaging studies were acquired before RT, at 3 and 6 weeks during RT, and 10, 30, and 78 weeks after starting RT. The diffusivity variables in the parahippocampal cingulum bundle and temporal lobe white matter were computed. A quality-of-life survey and neurocognitive function tests were administered before and after RT at the magnetic resonance imaging follow-up visits. Results: In both structures, longitudinal diffusivity ({lambda}{sub Double-Vertical-Line }) decreased and perpendicular diffusivity ({lambda}{sub Up-Tack }) increased after RT, with early changes correlating to later changes (p < .05). The radiation dose correlated with an increase in cingulum {lambda}{sub Up-Tack} at 3 weeks, and patients with >50% of cingula volume receiving >12 Gy had a greater increase in {lambda}{sub Up-Tack} at 3 and 6 weeks (p < .05). The post-RT changes in verbal recall scores correlated linearly with the late changes in cingulum {lambda}{sub Double-Vertical-Line} (30 weeks, p < .02). Using receiver operating characteristic curves, early cingulum {lambda}{sub Double-Vertical-Line} changes predicted for post-RT changes in verbal recall scores (3 and 6 weeks, p < .05). The neurocognitive test scores correlated significantly with the quality-of-life survey results. Conclusions: The correlation between early diffusivity changes in the parahippocampal cingulum and the late decline in verbal recall suggests that diffusion tensor imaging might be useful as a biomarker for predicting late delayed cognitive decline.

  7. Predictive Factors for Acute and Late Urinary Toxicity After Permanent Prostate Brachytherapy: Long-Term Outcome in 712 Consecutive Patients

    SciTech Connect (OSTI)

    Keyes, Mira Miller, Stacy; Moravan, Veronika; Pickles, Tom; McKenzie, Michael; Pai, Howard; Liu, Mitchell; Kwan, Winkle; Agranovich, Alexander; Spadinger, Ingrid; Lapointe, Vincent; Halperin, Ross; Morris, W. James

    2009-03-15

    Purpose: To describe the frequency of acute and late Radiation Therapy Oncology Group (RTOG) urinary toxicity, associated predictive factors, and resolution of International Prostate Symptom Score (IPSS) in 712 consecutive prostate brachytherapy patients. Methods and Materials: Patients underwent implantation between 1998 and 2003 (median follow-up, 57 months). The IPSS and RTOG toxicity data were prospectively collected. The patient, treatment, and implant factors were examined for an association with urinary toxicity. The time to IPSS resolution was examined using Kaplan-Meier curves, and multivariate modeling of IPSS resolution was done using Cox proportional hazards regression analysis. Logistic regression analysis was used to examine the factors associated with urinary toxicity. Results: The IPSS returned to baseline at a median of 12.6 months. On multivariate analysis, patients with a high baseline IPSS had a quicker resolution of their IPSS. Higher prostate D90 (dose covering 90% of the prostate), maximal postimplant IPSS, and urinary retention slowed the IPSS resolution time. The rate of the actuarial 5-year late urinary (>12 months) RTOG Grade 0, 1, 2, 3, and 4 was 32%, 36%, 24%, 6.2%, and 0.1%, respectively. At 7 years, the prevalence of RTOG Grade 0-1 was 92.5%. Patients with a larger prostate volume, greater number of needles, greater baseline IPSS, and use of hormonal therapy had more acute toxicity. On multivariate analysis, the significant predictors for late greater than or equal to RTOG toxicity 2 were a greater baseline IPSS, maximal postimplant IPSS, presence of acute toxicity, and higher prostate V150 (volume of the prostate covered by 150% of the dose). More recently implanted patients had less acute urinary toxicity and patients given hormonal therapy had less late urinary toxicity (all p < 0.02). Conclusion: Most urinary symptoms resolved within 12 months after prostate brachytherapy, and significant long-term urinary toxicity was very low. Refined patient selection and greater technical experience in prostate brachytherapy were associated with less urinary toxicity.

  8. Prospective Study of Local Control and Late Radiation Toxicity After Intraoperative Radiation Therapy Boost for Early Breast Cancer

    SciTech Connect (OSTI)

    Chang, David W.; Marvelde, Luc te; Chua, Boon H.

    2014-01-01

    Purpose: To report the local recurrence rate and late toxicity of intraoperative radiation therapy (IORT) boost to the tumor bed using the Intrabeam System followed by external-beam whole-breast irradiation (WBI) in women with early-stage breast cancer in a prospective single-institution study. Methods and Materials: Women with breast cancer ?3 cm were recruited between February 2003 and May 2005. After breast-conserving surgery, a single dose of 5 Gy IORT boost was delivered using 50-kV x-rays to a depth of 10 mm from the applicator surface. This was followed by WBI to a total dose of 50 Gy in 25 fractions. Patients were reviewed at regular, predefined intervals. Late toxicities were recorded using the Radiation Therapy Oncology Group/European Organization for Research and Treatment of Cancer Late Radiation Morbidity Scoring systems. Results: Fifty-five patients completed both IORT boost and external-beam WBI. Median follow-up was 3.3 years (range, 1.4-4.1 years). There was no reported locoregional recurrence or death. One patient developed distant metastases. Grade 2 and 3 subcutaneous fibrosis was detected in 29 (53%) and 8 patients (15%), respectively. Conclusions: The use of IORT as a tumor bed boost using kV x-rays in breast-conserving therapy was associated with good local control but a clinically significant rate of grade 2 and 3 subcutaneous fibrosis.

  9. A late-time flattening of light curves in gamma-ray burst afterglows

    SciTech Connect (OSTI)

    Sironi, Lorenzo; Giannios, Dimitrios E-mail: dgiannio@purdue.edu

    2013-12-01

    The afterglow emission from gamma-ray bursts (GRBs) is usually interpreted as synchrotron radiation from relativistic electrons accelerated at the GRB external shock. We investigate the temporal decay of the afterglow emission at late times, when the bulk of the shock-accelerated electrons are non-relativistic (the 'deep Newtonian phase', as denoted by Huang and Cheng). We assume that the electron spectrum in the deep Newtonian phase is a power-law distribution in momentum with slope p, as dictated by the theory of Fermi acceleration in non-relativistic shocks. For a uniform circumburst medium, the deep Newtonian phase begins at t{sub DN}?3 ?{sub e,?1}{sup 5/6}t{sub ST}, where t {sub ST} marks the transition of the blast wave to the non-relativistic, spherically symmetric Sedov-Taylor (ST) solution, and ? {sub e} = 0.1 ? {sub e,1} quantifies the amount of shock energy transferred to the electrons. For typical parameters, the deep Newtonian stage starts ?0.5 to several years after the GRB. The radio flux in this phase decays as F {sub ?}?t {sup 3(p+1)/10}?t {sup (0.91.2)}, for a power-law slope 2 < p < 3. This is shallower than the scaling F {sub ?}?t {sup 3(5p7)/10}?t {sup (0.92.4)} derived by Frail et al., which only applies if the GRB shock is non-relativistic, but the electron distribution still peaks at ultra-relativistic energies (a regime that is relevant for a narrow time interval, and only if t {sub DN} ? t {sub ST}, namely, ? {sub e} ? 0.03). We discuss how the deep Newtonian phase can be reliably used for GRB calorimetry, and we comment on the good detection prospects of trans-relativistic blast waves at 0.110 GHz with the Karl G. Jansky Very Large Array and LOw-Frequency ARray.

  10. The Need for a Strong Science and Technology Program in the Nuclear Weapons Complex for the 21st Century

    SciTech Connect (OSTI)

    Garaizar, X

    2010-01-06

    In this paper I argue for the need for a strong Science and Technology program in the Nuclear Weapons Complex as the basis for maintaining a credible deterrence capability. The current Nuclear Posture Review establishes a New Triad as the basis for the United States deterrence strategy in a changing security environment. A predictive science capability is at the core of a credible National Nuclear Weapons program in the 21st Century. In absence of nuclear testing, the certification of our current Nuclear Weapons relies on predictive simulations and quantification of the associated simulation uncertainties. In addition, a robust nuclear infrastructure needs an active research and development program that considers all the required nuclear scenarios, including new configurations for which there is no nuclear test data. This paper also considers alternative positions to the need for a Science and Technology program in the Nuclear Weapons complex.

  11. Integrated Assessment of Global Water Scarcity over the 21st Century under Multiple Climate Change Mitigation Policies

    SciTech Connect (OSTI)

    Hejazi, Mohamad I.; Edmonds, James A.; Clarke, Leon E.; Kyle, G. Page; Davies, Evan; Chaturvedi, Vaibhav; Wise, Marshall A.; Patel, Pralit L.; Eom, Jiyong; Calvin, Katherine V.

    2014-01-01

    Water scarcity conditions over the 21st century both globally and regionally are assessed in the context of climate change, by estimating both water availability and water demand within the Global Change Assessment Model (GCAM), a leading community integrated assessment model of energy, agriculture, climate, and water. To quantify changes in future water availability, a new gridded water-balance global hydrologic model namely, the Global Water Availability Model (GWAM) is developed and evaluated. Global water demands for six major demand sectors (irrigation, livestock, domestic, electricity generation, primary energy production, and manufacturing) are modeled in GCAM at the regional scale (14 geopolitical regions, 151 sub-regions) and then spatially downscaled to 0.5 o x 0.5o resolution to match the scale of GWAM. Using a baseline scenario (i.e., no climate change mitigation policy) with radiative forcing reaching 8.8 W/m2 (equivalent to the SRES A1Fi emission scenario) and a global population of 14 billion by 2095, global annual water demand grows from about 9% of total annual renewable freshwater in 2005 to about 32% by 2095. This results in almost half of the world population living under extreme water scarcity by the end of the 21st century. Regionally, the demand for water exceeds the amount of water availability in two GCAM regions, the Middle East and India. Additionally, in years 2050 and 2095, 20% and 27% of the global population, respectively, is projected to live in areas (grid cells) that will experience greater water demands than the amount of available water in a year (i.e., the water scarcity index (WSI) > 1.0). This study implies an increasingly prominent role for water in future human decisions, and highlights the importance of including water in integrated assessment of global change.

  12. Studies of Ocean Predictability at Decade to Century Time Scales Using a Global Ocean General Circulation Model in a Parallel Computing Environment

    SciTech Connect (OSTI)

    Barnett, T.P.

    1998-11-30

    The objectives of this report are to determine the structure of oceanic natural variability at time scales of decades to centuries, characterize the physical mechanisms responsible for the variability; determine the relative importance of heat, fresh water, and moment fluxes on the variability; determine the predictability of the variability on these times scales. (B204)

  13. Dosimetric and Late Radiation Toxicity Comparison Between Iodine-125 Brachytherapy and Stereotactic Radiation Therapy for Juxtapapillary Choroidal Melanoma

    SciTech Connect (OSTI)

    Krema, Hatem

    2013-07-01

    Purpose: To compare the dose distributions and late radiation toxicities for {sup 125}I brachytherapy (IBT) and stereotactic radiation therapy (SRT) in the treatment of juxtapapillary choroidal melanoma. Methods: Ninety-four consecutive patients with juxtapapillary melanoma were reviewed: 30 have been treated with IBT and 64 with SRT. Iodine-125 brachytherapy cases were modeled with plaque simulator software for dosimetric analysis. The SRT dosimetric data were obtained from the Radionics XKnife RT3 software. Mean doses at predetermined intraocular points were calculated. Kaplan-Meier estimates determined the actuarial rates of late toxicities, and the logrank test compared the estimates. Results: The median follow-up was 46 months in both cohorts. The 2 cohorts were balanced with respect to pretreatment clinical and tumor characteristics. Comparisons of radiation toxicity rates between the IBT and SRT cohorts yielded actuarial rates at 50 months for cataracts of 62% and 75% (P=.1), for neovascular glaucoma 8% and 47% (P=.002), for radiation retinopathy 59% and 89% (P=.0001), and for radiation papillopathy 39% and 74% (P=.003), respectively. Dosimetric comparisons between the IBT and SRT cohorts yielded mean doses of 12.8 and 14.1 Gy (P=.56) for the lens center, 17.6 and 19.7 Gy (P=.44) for the lens posterior pole, 13.9 and 10.8 Gy (P=.30) for the ciliary body, 61.9 and 69.7 Gy (P=.03) for optic disc center, and 48.9 and 60.1 Gy (P<.0001) for retina at 5-mm distance from tumor margin, respectively. Conclusions: Late radiation-induced toxicities were greater with SRT, which is secondary to the high-dose exposure inherent to the technique as compared with IBT. When technically feasible, IBT is preferred to treat juxtapapillary choroidal melanoma.

  14. Another Side of Light - D

    Office of Scientific and Technical Information (OSTI)

    D. Three quantum phenomena In fluorescence, matter absorbs light waves of a high frequency and then emits light of the same or lower frequency. This process was studied and named by George Gabriel Stokes in the mid-19th century. Today, fluorescence is familiar to us from fluorescent light bulbs. A fluorescent bulb's filament produces ultraviolet light, which is absorbed by the bulb's inner coating, which then emits lower-frequency visible light-more visible light than an incandescent bulb

  15. Inquiring Minds

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    All About Light All About Light Main Page | Classical | Relativistic | Quantum Classical - Speed of Light in a Vacuum What is Light? | Wave's Family Members | Electromagnetic Waves How Do We Create Electromagnetic Waves? | Description of EM Waves Spectrum of Electromagnetic Waves | Visible Spectrum Speed of Light-First Try | Speed of Light in a Vacuum | Speed of Light in Matter In the 19th century, people made discoveries in electricity and magnetism. After zillions of experiments, they

  16. Integrated assessment of global water scarcity over the 21st century under multiple climate change mitigation policies

    SciTech Connect (OSTI)

    Hejazi, Mohamad I.; Edmonds, James A.; Clarke, Leon E.; Kyle, G. Page; Davies, Evan; Chaturvedi, Vaibhav; Wise, Marshall A.; Patel, Pralit L.; Eom, Jiyong; Calvin, Katherine V.

    2014-08-01

    Water scarcity conditions over the 21st century both globally and regionally are assessed in the context of climate change and climate mitigation policies, by estimating both water availability and water demand within the Global Change Assessment Model (GCAM), a leading community integrated assessment model of energy, agriculture, climate, and water. To quantify changes in future water availability, a new gridded water-balance global hydrologic model – namely, the Global Water Availability Model (GWAM) – is developed and evaluated. Global water demands for six major demand sectors (irrigation, livestock, domestic, electricity generation, primary energy production, and manufacturing) are modeled in GCAM at the regional scale (14 geopolitical regions, 151 sub-regions) and then spatially downscaled to 0.5 o x 0.5o resolution to match the scale of GWAM. Using a baseline scenario (i.e., no climate change mitigation policy) with radiative forcing reaching 8.8 W/m2 (equivalent to the SRES A1Fi emission scenario) and three climate policy scenarios with increasing mitigation stringency of 7.7, 5.5, and 4.2 W/m2 (equivalent to the SRES A2, B2, and B1 emission scenarios, respectively), we investigate the effects of emission mitigation policies on water scarcity. Two carbon tax regimes (a universal carbon tax (UCT) which includes land use change emissions, and a fossil fuel and industrial emissions carbon tax (FFICT) which excludes land use change emissions) are analyzed. The baseline scenario results in more than half of the world population living under extreme water scarcity by the end of the 21st century. Additionally, in years 2050 and 2095, 36% (28%) and 44% (39%) of the global population, respectively, is projected to live in grid cells (in basins) that will experience greater water demands than the amount of available water in a year (i.e., the water scarcity index (WSI) > 1.0). When comparing the climate policy scenarios to the baseline scenario while maintaining the same baseline socioeconomic assumptions, water scarcity declines under a UCT mitigation policy but increases with a FFICT mitigation scenario by the year 2095 particularly with more stringent climate mitigation targets. Under the FFICT scenario, water scarcity is projected to increase driven by higher water demands for bio-energy crops.

  17. A closer look at the fluctuations in the brightness of SN 2009IP during its late 2012 eruption

    SciTech Connect (OSTI)

    Martin, J. C. [Barber Observatory, University of Illinois Springfield, Springfield, IL 62704 (United States); Hambsch, F.-J. [Remote Observatory, Atacama Desert, Chile Vereniging Voor Sterrenkunde (VVS), Oude Bleken 12, B-2400 Mol (Belgium); Margutti, R.; Soderberg, A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02318 (United States); Tan, T. G. [Perth Exoplanet Survey Telescope, Perth (Australia); Curtis, I., E-mail: jmart5@uis.edu [Adelaide (Australia)

    2015-01-01

    The supernova (SN) impostor SN 2009ip has re-brightened several times since its initial discovery in 2009 August. During its last outburst in late 2012 September, it reached a peak brightness of m{sub v} ?13.5 (M{sub v} brighter than ?18), causing some to speculate that it had undergone a terminal core-collapse SN. Relatively high-cadence multi-wavelength photometry of the post-peak decline revealed bumps in brightness infrequently observed in other SNe IIn. These bumps occurred synchronously in all ultraviolet (UV) and optical bands with amplitudes of 0.10.4 mag at intervals of 1030 days. Episodic continuum brightening and dimming in the UV and optical with these characteristics is not easily explained within the context of models that have been proposed for the late September 2012 outburst of SN 2009ip. We also present evidence that the post-peak fluctuations in brightness occur at regular intervals and raise more questions about their origin.

  18. Nuclear substructure reorganization during late stageerythropoiesis is selective and does not involve caspase cleavage ofmajor nuclear substructural proteins

    SciTech Connect (OSTI)

    Krauss, Sharon Wald; Lo, Annie J.; Short, Sarah A.; Koury, MarkJ.; Mohandas, Narla; Chasis, Joel Anne

    2005-04-06

    Enucleation, a rare feature of mammalian differentiation, occurs in three cell types: erythroblasts, lens epithelium and keratinocytes. Previous investigations suggest that caspase activation functions in lens epithelial and keratinocyte enucleation, as well as in early erythropoiesis encompassing BFU-E differentiation to proerythroblast. To determine whether caspase activation contributes to later erythropoiesis and whether nuclear substructures other than chromatin reorganize, we analyzed distributions of nuclear subcompartment proteins and assayed for caspase-induced cleavage of subcompartmental target proteins in mouse erythroblasts. We found that patterns of lamin B in the filamentous network interacting with both the nuclear envelope and DNA, nuclear matrix protein NuMA, and splicing factors Sm and SC35 persisted during nuclear condensation, consistent with effective transcription of genes expressed late in differentiation. Thus nuclear reorganization prior to enucleation is selective, allowing maintenance of critical transcriptional processes independent of extensive chromosomal reorganization. Consistent with these data, we found no evidence for caspase-induced cleavage of major nuclear subcompartment proteins during late erythropoiesis, in contrast to what has been observed in early erythropoiesis and in lens epithelial and keratinocyte differentiation. These findings imply that nuclear condensation and extrusion during terminal erythroid differentiation involve novel mechanisms that do not entail major activation of apoptotic machinery.

  19. Excellence in Radiation Research for the 21st Century (EIRR21): Description of an Innovative Research Training Program

    SciTech Connect (OSTI)

    P'ng, Christine; Ito, Emma; Ontario Cancer Institute, Toronto, Ontario ; How, Christine; Department of Medical Biophysics, University of Toronto, Toronto, Ontario ; Bezjak, Andrea; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Bristow, Rob; Ontario Cancer Institute, Toronto, Ontario; Department of Medical Biophysics, University of Toronto, Toronto, Ontario; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Catton, Pam; Fyles, Anthony; Gospodarowicz, Mary; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Jaffray, David; Department of Medical Biophysics, University of Toronto, Toronto, Ontario; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Kelley, Shana; Wong Shun; Odette Cancer Center, Toronto, Ontario ; Liu Feifei

    2012-08-01

    Purpose: To describe and assess an interdisciplinary research training program for graduate students, postdoctoral fellows, and clinical fellows focused on radiation medicine; funded by the Canadian Institutes for Health Research since 2003, the program entitled 'Excellence in Radiation Research for the 21st Century' (EIRR21) aims to train the next generation of interdisciplinary radiation medicine researchers. Methods and Materials: Online surveys evaluating EIRR21 were sent to trainees (n=56), mentors (n=36), and seminar speakers (n=72). Face-to-face interviews were also conducted for trainee liaisons (n=4) and participants in the international exchange program (n=2). Results: Overall response rates ranged from 53% (mentors) to 91% (trainees). EIRR21 was well received by trainees, with the acquisition of several important skills related to their research endeavors. An innovative seminar series, entitled Brainstorm sessions, imparting 'extracurricular' knowledge in intellectual property protection, commercialization strategies, and effective communication, was considered to be the most valuable component of the program. Networking with researchers in other disciplines was also facilitated owing to program participation. Conclusions: EIRR21 is an innovative training program that positively impacts the biomedical community and imparts valuable skill sets to foster success for the future generation of radiation medicine researchers.

  20. Whitehead Policy Symposium. The Human Genome Project: Science, law, and social change in the 21st century

    SciTech Connect (OSTI)

    Nichols, E.K.

    2000-02-17

    Advances in the biomedical sciences, especially in human genomics, will dramatically influence law, medicine, public health, and many other sectors of our society in the decades ahead. The public already senses the revolutionary nature of genomic knowledge. In the US and Europe, we have seen widespread discussions about genetic discrimination in health insurance; privacy issues raised by the proliferation of DNA data banks; the challenge of interpreting new DNA diagnostic tests; changing definitions of what it means to be healthy; and the science and ethics of cloning animals and human beings. The primary goal of the Whitehead/ASLME Policy Symposium was to provide a bridge between the research community and professionals, who were just beginning to grasp the potential impact of new genetic technologies on their fields. The ''Human Genome Project: Science, Law, and Social Change in the 21st Century'' initially was designed as a forum for 300-500 physicians, lawyers, consumers, ethicists, and scientists to explore the impact of new genetic technologies and prepare for the challenges ahead.

  1. Multi-century Changes to Global Climate and Carbon Cycle: Results from a Coupled Climate and Carbon Cycle Model

    SciTech Connect (OSTI)

    Bala, G; Caldeira, K; Mirin, A; Wickett, M; Delire, C

    2005-02-17

    In this paper, we use a coupled climate and carbon cycle model to investigate the global climate and carbon cycle changes out to year 2300 that would occur if CO{sub 2} emissions from all the currently estimated fossil fuel resources were released to the atmosphere. By year 2300, the global climate warms by about 8 K and atmospheric CO{sub 2} reaches 1423 ppmv. The warming is higher than anticipated because the sensitivity to radiative forcing increases as the simulation progresses. In our simulation, the rate of emissions peak at over 30 PgC yr{sup -1} early in the 22nd century. Even at year 2300, nearly 50% of cumulative emissions remain in the atmosphere. In our simulations both soils and living biomass are net carbon sinks throughout the simulation. Despite having relatively low climate sensitivity and strong carbon uptake by the land biosphere, our model projections suggest severe long-term consequences for global climate if all the fossil-fuel carbon is ultimately released to the atmosphere.

  2. Judging Edward Teller: A Closer Look at One of the Most Influential Scientists of the Twentieth Century

    SciTech Connect (OSTI)

    Libby, S B

    2010-12-29

    Much has been written about Edward TEller, but little of it is objective. Given, on the one hand, his position as one of the most inventive theoretical physicists of the 20th century, and on the other, his central role in the development and advocacy of thermonuclear weapons, one might imagine it impossible at this point in history to write a scholarly, impartial account of Teller's life and his impact. Now, however, Istvan Hargittai, a prominent Hungarian physical chemist and historian of science, has written a balanced, thoughtful, and beautifully research biography that comes closest. Hargittai is uniquely qualified for this difficult task. Coming a generation and a half later from a similar Hungarian-Jewish background, Hargittai understands well the influences and terrible events that shaped Teller. The advent of virulent, political anti-Semitism, first in Hungary and then in Germany, made Teller twice a refugee. Both Teller and Hargittai lost close family in the Holocaust; Hargittai was himself liberated from a Nazi concentration camp as a child. While Teller was in the US by then, his and Hargittai's surviving family members in Hungary suffered mistreatment at the hands of the postwar Hungarian Communist dictatorship. Hargittai's informed Eastern European perspective also provides a fresh viewpoint to the cold war context of the second half of Teller's career. Furthermore, Hargittai's own scientific work in molecular structure clearly makes him appreciate of Teller's breakthroughs in that field in the 1930s.

  3. Laboratories for the 21st Century: Best Practices; Modeling Exhaust Dispersion for Specifying Acceptable Exhaust/Intake Design (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-09-01

    This guide provides general information on specifying acceptable exhaust and intake designs. It also provides various quantitative approaches that can be used to determine expected concentration levels resulting from exhaust system emissions. In addition, the guide describes methodologies that can be employed to operate laboratory exhaust systems in a safe and energy efficient manner by using variable air volume (VAV) technology. The guide, one in a series on best practices for laboratories, was produced by Laboratories for the 21st Century (Labs21), a joint program of the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE). Geared toward architects, engineers, and facility managers, the guides contain information about technologies and practices to use in designing, constructing, and operating safe, sustainable, high-performance laboratories. Studies show a direct relationship between indoor air quality and the health and productivity of building occupants. Historically, the study and protection of indoor air quality focused on emission sources emanating from within the building. For example, to ensure that the worker is not exposed to toxic chemicals, 'as manufactured' and 'as installed' containment specifications are required for fume hoods. However, emissions from external sources, which may be re-ingested into the building through closed circuiting between the building's exhaust stacks and air intakes, are an often overlooked aspect of indoor air quality.

  4. July 24, 2009, Visiting Speakers Program Panel Discussion - Governance and Regulations: U. S. to Lead or Lag in the 21st Century - Companion Book

    Energy Savers [EERE]

    Hosted by the U.S. Department of Energy Office of Health, Safety and Security and the National Academy of Public Administration July 24, 2009 Washington, DC Governance and Regulation: U.S. to Lead or Lag in the 21 st Century Visiting Speakers Program Event The National Academy of Public Administration is a non-profit, independent coalition of top public management and organizational leaders who tackle the nation's most critical and complex challenges. With a network of more than 600

  5. Estimating the supply and demand for deep geologic CO2 storage capacity over the course of the 21st Century: A meta-analysis of the literature

    SciTech Connect (OSTI)

    Dooley, James J.

    2013-08-05

    Whether there is sufficient geologic CO2 storage capacity to allow CCS to play a significant role in mitigating climate change has been the subject of debate since the 1990s. This paper presents a meta- analysis of a large body of recently published literature to derive updated estimates of the global deep geologic storage resource as well as the potential demand for this geologic CO2 storage resource over the course of this century. This analysis reveals that, for greenhouse gas emissions mitigation scenarios that have end-of-century atmospheric CO2 concentrations of between 350 ppmv and 725 ppmv, the average demand for deep geologic CO2 storage over the course of this century is between 410 GtCO2 and 1,670 GtCO2. The literature summarized here suggests that -- depending on the stringency of criteria applied to calculate storage capacity global geologic CO2 storage capacity could be: 35,300 GtCO2 of theoretical capacity; 13,500 GtCO2 of effective capacity; 3,900 GtCO2, of practical capacity; and 290 GtCO2 of matched capacity for the few regions where this narrow definition of capacity has been calculated. The cumulative demand for geologic CO2 storage is likely quite small compared to global estimates of the deep geologic CO2 storage capacity, and therefore, a lack of deep geologic CO2 storage capacity is unlikely to be an impediment for the commercial adoption of CCS technologies in this century.

  6. SU-E-T-381: Radio-Dynamic Therapy (RDT) for the Treatment of Late-Stage Cancers

    SciTech Connect (OSTI)

    Ma, C; Chen, L; Price, R [Fox Chase Cancer Center, Philadelphia, PA (United States); Zhang, Q [Wu Xi Yi Ren Tumor Hosiptal, Wuxi, Jiangsu (China); Zeng, J; Xu, K; Sun, Q [Wuxi Yiren Cancer Hospital, Wuxi, Jiangsu (China)

    2014-06-01

    Purpose: Photo-dynamic therapy (PDT) is an effective treatment modality because of the preferential absorption of photosensitizing agent in tumor cells than in surrounding normal tissues. A limitation of PDT for cancer therapy is the finite penetration of laser light to activate the targeting agent in deep-seated tumors. Radio-dynamic therapy (RDT) is designed to overcome this problem by the combination of high-energy (up to 45MV) photon beams and photo/radio-sensitizers. This work investigates the feasibility of PDT for late-stage cancer patients who are no longer respond to conventional therapies available. Methods: The high-energy photon beams are generated using a LA45 RaceTrack Microtron (Top Grade Medical, Beijing, China). The targeting agent investigated is 5- aminolevulinic acid (5-ALA). Both in vitro cell lines and in vivo animal models have been used to investigate the mechanisms of RDT and its therapeutic effects and normal tissue toxicities. Oral 5-ALA (30-60 mg/kg) was administered 4-6 hours before the radiation treatment and the total radiation dose varied between 0.1-4.0Gy in 1-4 fractions. Clinical trials are initiated in China for late-stage cancer patients targeting both primary tumors utilizing localized therapies such as 3DCRT/IMRT and metastases using TBI. Results: There is clear correlation between the cell death and the 5-ALA concentration/radiation dose. The therapeutic effect of RDT is demonstrated using an animal model where the volume of parotid tumors for the RT only group continued to grow after 3Gy irradiation while the RDT group showed a complete response with the same radiation dose. The preliminary clinical results showed encouraging clinical outcome. Conclusion: RDT is a novel treatment technique that may be developed into an effective cancer treatment modality. Further studies on the mechanisms of RDT and its potential clinical applications are warranted.

  7. Sedimentology and diagenesis of windward-facing fore-reef calcarenites, Late Pleistocene of Barbados, West Indies

    SciTech Connect (OSTI)

    Humphrey, J.D.; Kimbell, T.N.

    1989-03-01

    Late Pleistocene reef terraces in southeastern Barbardos developed extensive fore-reef sand facies during deposition in response to high-energy windward-facing conditions. Sedimentology and diagenesis of these deposits illustrate significant contrasts with previous studies from the leeward west coast. These calcarenites are dominantly skeletal packstones with less common grainstones and wackestones present. The fore-reef sand facies occurs within progradational reef sequences, being conformably overlain by deep-water head coral facies. Medium-bedded, laterally continuous sand sheets retain original depositional slopes, dipping seaward at 10/degrees/-15/degrees/. These fore-reef deposits, in places, are over 30 m thick (average 20 m) and developed rapidly during late Pleistocene glacio-eustatic sea level highstands. Sedimentation rate ranges from 2 to 5 m/1000 years. Areal extent of fore-reef calcarenites in southeastern Barbados is estimated to be 8-10 km/sup 2/. Lithologically, the packstones are composed of an abundance of coralline red algae and the benthic foraminifer Amphistegina sp. Other volumetrically significant allochems include echinoids, mollusks, rhodoliths, peloids, and micritized grains. Micrite in the wackestone and packstone lithologies is likely derived from intense physical/mechanical abrasion of shoal-water reef facies. Diagenesis of these lithologies reflects a complex interplay of meteoric, mixing zone, and marine environments as a result of glacio-eustasy. Differences in diagenetic character are derived from differences in terrace ages, terrace geometry, a paleotopographic control on meteoric ground-water distribution, and high-energy coastal conditions. Diagenetic fabrics include equant, blocky meteoric phreatic calcite; limpid dolomite of mixing zone origin: and peloidal and isopachous fibrous cements from marine precipitation.

  8. Sequence stratigraphy of carbonate buildups developed in an active tectonic/volcanic setting: Triassic (Late Ladinian and Carnian) of the Dolomites, northern Italy

    SciTech Connect (OSTI)

    Yose, L.A. ); Littmann, P. )

    1991-03-01

    Late Ladinian and Carnian deposits of the Dolomites record the evolution of carbonate buildups developed during the waning phases of a major period of volcanism and strike-slip tectonics. Each separate buildup provides an independent record of eustasy, tectonism, and competing carbonate and volcaniclastic sedimentation. Palynomorphs, calibrated with ammonites, are used to correlate between buildups and provide a means for distinguishing local variations in buildup histories from regional, synchronous trends in sedimentation which may record third-order eustasy. Although individual buildup histories vary dramatically, two depositional sequences may be recorded at a regional scale: one of late Ladinian age (early to late Longobardian) and another of late Ladinian to middle Carnian age (late Longobardian to Cordevolian). A relative sea-level fall in the late Ladinian resulted in an increased supply of volcaniclastics that onlap the flanks of many buildups and/or downslope shifts in carbonate production. Buildups of the second sequence developed in response to a relative sea-level rise and are similar in diversity to those of the first sequence. Extensive buildup progradation and accretion during this phase, concomitant with mixed-carbonate/volcaniclastic basin filling and diminished tectonic activity, result in a regional suturing of the complex paleogeography developed during the middle Ladinian. Local paleogeography, determined by the distribution of earlier platforms in addition to tectonic and volcanogenic processes, is interpreted as the primary control over buildup geometries and the variability of buildups within sequences. However, the regional extent and synchroneity of the sequences described above many record third-order eustasy.

  9. 2000 U.S. Department of Energy Strategic Plan: Strength through Science Powering the 21st Century

    SciTech Connect (OSTI)

    None,

    2000-09-01

    The Department of Energy conducts programs relating to energy resources, national nuclear security, environmental quality, and science. In each of these areas, the US is facing significant challenges. Our economic well-being depends on the continuing availability of reliable and affordable supplies of clean energy. Our Nation's security is threatened by the proliferation of weapons of mass destruction. Our environment is under threat from the demands a more populated planet and the legacies of 20th-century activities. Science and the technology derived from it offer the promise to improve the Nation's health and well-being and broadly expand human knowledge. In conducting its programs, the Department of Energy (DOE) employs unique scientific and technical assets, including 30,000 scientists, engineers, and other technical staff, in a complex of outstanding national laboratories that have a capital value of over $45 billion. Through its multidisciplinary research and development activities and its formidable assemblage of scientific and engineering talent, DOE focuses its efforts on four programmatic business lines: (1) Energy Resources--promoting the development and deployment of systems and practices that provide energy that is clean, efficient, reasonably priced, and reliable. (2) National Nuclear Security--enhancing national security through military application of nuclear technology and by reducing global danger from the potential spread of weapons of mass destruction. (3) Environmental Quality--cleaning up the legacy of nuclear weapons and nuclear research activities, safely managing nuclear materials, and disposing of radioactive wastes. (4) Science--advancing science and scientific tools to provide the foundation for DOE's applied missions and to provide remarkable insights into our physical and biological world. In support of the above four business lines, DOE provides management services to ensure that the technical programs can run efficiently. Our Corporate Management area deals with organizational and management challenges that we must address to better serve our customers, and ultimately, U.S. taxpayers, in an effective and efficient manner. Within Corporate Management, we strive for excellence in the Department's environment, safety, and health practices, together with effective management systems and efficient business practices.

  10. Total synthesis of gracilioether F. Development and application of Lewis acid promoted ketenealkene [2+2] cycloadditions and late-stage CH oxidation

    SciTech Connect (OSTI)

    Rasik, Christopher M.; Brown, M. Kevin

    2014-12-22

    The first synthesis of gracilioether F, a polyketide natural product with an unusual tricyclic core and five contiguous stereocenters, is described. Key steps of the synthesis include a Lewis acid promoted ketenealkene [2+2] cycloaddition and a late-stage carboxylic acid directed C(sp)H oxidation. The synthesis requires only eight steps from norbornadiene.

  11. The Phillips Stirling engine

    SciTech Connect (OSTI)

    Hargreaves, C.M.

    1991-01-01

    This book is about the Stirling engine and its development from the heavy cast-iron machine of the 19th century to that of today. It is a history of a research effort spanning nearly 50 years, together with an outline of principles, and some technical details and descriptions of the more important engines. Contents include: the hot-air engine; the 20th-century revival; the Stirling cycle; rhombic-drive engines; heating and cooling; pistons and seals; electric generators and heat pumps; exotic heat sources; the engine and the environment; swashplate engines; and the past and the future.

  12. Graph Theory

    SciTech Connect (OSTI)

    Sanfilippo, Antonio P.

    2005-12-27

    Graph theory is a branch of discrete combinatorial mathematics that studies the properties of graphs. The theory was pioneered by the Swiss mathematician Leonhard Euler in the 18th century, commenced its formal development during the second half of the 19th century, and has witnessed substantial growth during the last seventy years, with applications in areas as diverse as engineering, computer science, physics, sociology, chemistry and biology. Graph theory has also had a strong impact in computational linguistics by providing the foundations for the theory of features structures that has emerged as one of the most widely used frameworks for the representation of grammar formalisms.

  13. Constraints on the binary properties of mid- to late T dwarfs from Hubble space telescope WFC3 observations

    SciTech Connect (OSTI)

    Aberasturi, M.; Solano, E.; Burgasser, A. J.; Mora, A.; Martn, E. L.; Reid, I. N.; Looper, D.

    2014-12-01

    We used Hubble Space Telescope/Wide Field Camera 3 (WFC3) observations of a sample of 26 nearby (?20 pc) mid- to late T dwarfs to search for cooler companions and measure the multiplicity statistics of brown dwarfs (BDs). Tightly separated companions were searched for using a double point-spread-function-fitting algorithm. We also compared our detection limits based on simulations to other prior T5+ BD binary programs. No new wide or tight companions were identified, which is consistent with the number of known T5+ binary systems and the resolution limits of WFC3. We use our results to add new constraints to the binary fraction (BF) of T-type BDs. Modeling selection effects and adopting previously derived separation and mass ratio distributions, we find an upper limit total BF of <16% and <25% assuming power law and flat mass ratio distributions, respectively, which are consistent with previous results. We also characterize a handful of targets around the L/T transition.

  14. SEAB Memorandum on NAS Report, Aligning the Governance Structure of the NNSA Laboratories to Meet 21st Century National Security Challenges

    Broader source: Energy.gov [DOE]

    This memorandum transmits the comments of the SEAB Task Force on DOE National Laboratories on the recently released report of the Committee on Assessment of the Governance Structure of the NNSA National Security, entitled Aligning the Governance Structure of the NNSA Laboratories to Meet 21st Century National Security Challenges. That committee, chaired by Richard A. Meserve, was formed by the National Research Council in response to the FY2013 National Defense Authorization Act which directed the Administrator of the NNSA to commission an independent assessment regarding the transition of the NNSA laboratories to multiagency, federally funded research and development centers (FFRDCs) with direct sustainment and sponsorship by multiple national security agencies.

  15. Status Update on the NCRP Scientific Committee SC 5-1 Report: Decision Making for Late-Phase Recovery from Nuclear or Radiological Incidents - 13450

    SciTech Connect (OSTI)

    Chen, S.Y.

    2013-07-01

    In August 2008, the U.S. Department of Homeland Security (DHS) issued its final Protective Action Guide (PAG) for radiological dispersal device (RDD) and improvised nuclear device (IND) incidents. This document specifies protective actions for public health during the early and intermediate phases and cleanup guidance for the late phase of RDD or IND incidents, and it discusses approaches to implementing the necessary actions. However, while the PAG provides specific guidance for the early and intermediate phases, it prescribes no equivalent guidance for the late-phase cleanup actions. Instead, the PAG offers a general description of a complex process using a site-specific optimization approach. This approach does not predetermine cleanup levels but approaches the problem from the factors that would bear on the final agreed-on cleanup levels. Based on this approach, the decision-making process involves multifaceted considerations including public health, the environment, and the economy, as well as socio-political factors. In an effort to fully define the process and approach to be used in optimizing late-phase recovery and site restoration following an RDD or IND incident, DHS has tasked the NCRP with preparing a comprehensive report addressing all aspects of the optimization process. Preparation of the NCRP report is a three-year (2010-2013) project assigned to a scientific committee, the Scientific Committee (SC) 5-1; the report was initially titled, Approach to Optimizing Decision Making for Late- Phase Recovery from Nuclear or Radiological Terrorism Incidents. Members of SC 5-1 represent a broad range of expertise, including homeland security, health physics, risk and decision analysis, economics, environmental remediation and radioactive waste management, and communication. In the wake of the Fukushima nuclear accident of 2011, and guided by a recent process led by the White House through a Principal Level Exercise (PLE), the optimization approach has since been expanded to include off-site contamination from major nuclear power plant accidents as well as other nuclear or radiological incidents. The expanded application under the current guidance has thus led to a broadened scope of the report, which is reflected in its new title, Decision Making for Late-Phase Recovery from Nuclear or Radiological Incidents. The NCRP report, which is due for publication in 2013, will substantiate the current DHS guidance by clarifying and elaborating on the processes required for the development and implementation of procedures for optimizing decision making for late-phase recovery, enabling the establishment of cleanup goals on a site-specific basis. The report will contain a series of topics addressing important issues related to the long-term recovery from nuclear or radiological incidents. Special topics relevant to supporting the optimization of the decision-making process will include cost-benefit analysis, radioactive waste management, risk communication, stakeholder interaction, risk assessment, and decontamination approaches and techniques. The committee also evaluated past nuclear and radiological incidents for their relevance to the report, including the emerging issues associated with the Fukushima nuclear accident. Thus, due to the commonality of the late-phase issues (such as the potential widespread contamination following an event), the majority of the information pertaining to the response in the late-phase decision-making period, including site-specific optimization framework and approach, could be used or adapted for use in case of similar situations that are not due to terrorism, such as those that would be caused by major nuclear facility accidents or radiological incidents. To ensure that the report and the NCRP recommendations are current and relevant to the effective implementation of federal guidance, SC 5-1 has actively coordinated with the agencies of interest and other relevant stakeholders throughout the duration of the project. The resulting report will be an important resource to guide those involved in late-phase recovery efforts following a nuclear or radiological incident. (authors)

  16. Association Between Disruption of Fibrin Sheaths Using Percutaneous Transluminal Angioplasty Balloons and Late Onset of Central Venous Stenosis

    SciTech Connect (OSTI)

    Ni, Nina Mojibian, Hamid; Pollak, Jeffrey; Tal, Michael

    2011-02-15

    To compare the rates of central venous stenosis in patients undergoing hemodialysis who underwent disruption of fibrin sheath with percutaneous transluminal angioplasty balloons and those who underwent over-the-wire catheter exchange. This study is a retrospective review of 209 percutaneous transluminal angioplasty balloon disruption and 1304 over-the-wire catheter exchange procedures performed in 753 patients. Approval from the Human Investigations Committee was obtained for this study. Up to 10-year follow-up was performed. A {chi}{sup 2} test was used to compare the rates of central venous stenosis after balloon disruption versus catheter exchange. A t-test was used to compare time to central venous stenosis development. Of the 753 patients in the study, 127 patients underwent balloon disruption of fibrin sheath and 626 had catheter exchange. Within the balloon disruption group, 18 (14.2%) of 127 patients subsequently developed central venous stenosis, compared with 44 (7.0%) of 626 in the catheter exchange group (P < 0.01, {chi}{sup 2} test). Time to central venous stenosis development was approximately 3 years in both groups and not significantly different (1371 and 1010 days, P = 0.20). A total of 25.2% of patients in the balloon disruption group had four or more subsequent catheter exchanges, versus 12.6% in the catheter exchange group (P < 0.01, {chi}{sup 2} test). In conclusions, there is a possible association between percutaneous transluminal angioplasty balloon disruption of fibrin sheath and late-onset central venous stenosis. Because venography was not routinely performed in catheter exchange patients, future randomized studies are necessary to confirm these findings.

  17. Detailed Analysis of a Late-Phase Core-Melt Progression for the Evaluation of In-vessel Corium Retention

    SciTech Connect (OSTI)

    J. L. Rempe; R. J. Park; S. B. Kim; K. Y. Suh; F. B.Cheung

    2006-12-01

    Detailed analyses of a late-phase melt progression in the advanced power reactor (APR)1400 were completed to identify the melt and the thermal-hydraulic states of the in-vessel materials in the reactor vessel lower plenum at the time of reactor vessel failure to evaluate the candidate strategies for an in-vessel corium retention (IVR). Initiating events considered included high-pressure transients of a total loss of feed water (LOFW) and a station blackout (SBO) and low-pressure transients of a 0.0009-m2 small, 0.0093-m2 medium, and 0.0465-m2 large-break loss-of-coolant accident (LOCA) without safety injection. Best-estimate simulations for these low-probability events with conservative accident progression assumptions that lead to reactor vessel failure were performed by using the SCDAP/RELAP5/MOD3.3 computer code. The SCDAP/RELAP5/MOD3.3 results have shown that the pressurizer surge line failed before the reactor vessel failure, which results in a rapid decrease of the in-vessel pressure and a delay of the reactor vessel failure time of ~40 min in the high-pressure sequences of the total LOFW and the SBO transients. In all the sequences, ~80 to 90% of the core material was melted and relocated to the lower plenum of the reactor vessel at the time of reactor vessel failure. The maximum value of the volumetric heat source in the corium pool was estimated as 1.9 to 3.7 MW/m3. The corium temperature was ~2800 to 3400 K at the time of reactor vessel failure. The highest volumetric heat source sequence is predicted for the 0.0465-m2 large-break LOCA without safety injection in the APR1400, because this sequence leads to an early reactor vessel failure.

  18. Capital investment requirements for greenhouse gas emissions mitigation in power generation on near term to century time scales and global to regional spatial scales

    SciTech Connect (OSTI)

    Chaturvedi, Vaibhav; Clarke, Leon E.; Edmonds, James A.; Calvin, Katherine V.; Kyle, G. Page

    2014-11-01

    Electrification plays a crucial role in cost-effective greenhouse gas emissions mitigation strategies. Such strategies in turn carry implications for financial capital markets. This paper explores the implication of climate mitigation policy for capital investment demands by the electric power sector on decade to century time scales. We go further to explore the implications of technology performance and the stringency of climate policy for capital investment demands by the power sector. Finally, we discuss the regional distribution of investment demands. We find that stabilizing GHG emissions will require additional investment in the electricity generation sector over and above investments that would be need in the absence of climate policy, in the range of 16 to 29 Trillion US$ (60-110%) depending on the stringency of climate policy during the period 2015 to 2095 under default technology assumptions. This increase reflects the higher capital intensity of power systems that control emissions. Limits on the penetration of nuclear and carbon capture and storage technology could increase costs substantially. Energy efficiency improvements can reduce the investment requirement by 8 to21 Trillion US$ (default technology assumptions), depending on climate policy scenario with higher savings being obtained under the most stringent climate policy. The heaviest investments in power generation were observed in the China, India, SE Asia and Africa regions with the latter three regions dominating in the second half of the 21st century.

  19. A Novel Method for Predicting Late Genitourinary Toxicity After Prostate Radiation Therapy and the Need for Age-Based Risk-Adapted Dose Constraints

    SciTech Connect (OSTI)

    Ahmed, Awad A.; Egleston, Brian; Alcantara, Pino; Li, Linna; Pollack, Alan; Horwitz, Eric M.; Buyyounouski, Mark K.

    2013-07-15

    Background: There are no well-established normal tissue sparing dosevolume histogram (DVH) criteria that limit the risk of urinary toxicity from prostate radiation therapy (RT). The aim of this study was to determine which criteria predict late toxicity among various DVH parameters when contouring the entire solid bladder and its contents versus the bladder wall. The area under the histogram curve (AUHC) was also analyzed. Methods and Materials: From 1993 to 2000, 503 men with prostate cancer received 3-dimensional conformal RT (median follow-up time, 71 months). The whole bladder and the bladder wall were contoured in all patients. The primary endpoint was grade ?2 genitourinary (GU) toxicity occurring ?3 months after completion of RT. Cox regressions of time to grade ?2 toxicity were estimated separately for the entire bladder and bladder wall. Concordance probability estimates (CPE) assessed model discriminative ability. Before training the models, an external random test group of 100 men was set aside for testing. Separate analyses were performed based on the mean age (? 68 vs >68 years). Results: Age, pretreatment urinary symptoms, mean dose (entire bladder and bladder wall), and AUHC (entire bladder and bladder wall) were significant (P<.05) in multivariable analysis. Overall, bladder wall CPE values were higher than solid bladder values. The AUHC for bladder wall provided the greatest discrimination for late bladder toxicity when compared with alternative DVH points, with CPE values of 0.68 for age ?68 years and 0.81 for age >68 years. Conclusion: The AUHC method based on bladder wall volumes was superior for predicting late GU toxicity. Age >68 years was associated with late grade ?2 GU toxicity, which suggests that risk-adapted dose constraints based on age should be explored.

  20. THE APPLICATION OF A STATISTICAL DOWNSCALING PROCESS TO DERIVE 21{sup ST} CENTURY RIVER FLOW PREDICTIONS USING A GLOBAL CLIMATE SIMULATION

    SciTech Connect (OSTI)

    Werth, D.; Chen, K. F.

    2013-08-22

    The ability of water managers to maintain adequate supplies in coming decades depends, in part, on future weather conditions, as climate change has the potential to alter river flows from their current values, possibly rendering them unable to meet demand. Reliable climate projections are therefore critical to predicting the future water supply for the United States. These projections cannot be provided solely by global climate models (GCMs), however, as their resolution is too coarse to resolve the small-scale climate changes that can affect hydrology, and hence water supply, at regional to local scales. A process is needed to ‘downscale’ the GCM results to the smaller scales and feed this into a surface hydrology model to help determine the ability of rivers to provide adequate flow to meet future needs. We apply a statistical downscaling to GCM projections of precipitation and temperature through the use of a scaling method. This technique involves the correction of the cumulative distribution functions (CDFs) of the GCM-derived temperature and precipitation results for the 20{sup th} century, and the application of the same correction to 21{sup st} century GCM projections. This is done for three meteorological stations located within the Coosa River basin in northern Georgia, and is used to calculate future river flow statistics for the upper Coosa River. Results are compared to the historical Coosa River flow upstream from Georgia Power Company’s Hammond coal-fired power plant and to flows calculated with the original, unscaled GCM results to determine the impact of potential changes in meteorology on future flows.

  1. Late Patient-Reported Toxicity After Preoperative Radiotherapy or Chemoradiotherapy in Nonresectable Rectal Cancer: Results From a Randomized Phase III Study

    SciTech Connect (OSTI)

    Braendengen, Morten, E-mail: mortbrae@medisin.uio.no [Oslo University Hospital, Ulleval, Cancer Centre, Oslo (Norway); Department of Oncology and Pathology, Karolinska Institutet, Stockholm (Sweden); Tveit, Kjell Magne [Oslo University Hospital, Ulleval, Cancer Centre, Oslo (Norway); Faculty of Medicine, University of Oslo, Oslo (Norway); Bruheim, Kjersti [Oslo University Hospital, Ulleval, Cancer Centre, Oslo (Norway); Cvancarova, Milada [Department of Clinical Cancer Research, Oslo University Hospital, Radiumhospitalet, Oslo (Norway); Berglund, Ake [Department of Oncology, Radiology and Clinical Immunology, University of Uppsala, Uppsala (Sweden); Glimelius, Bengt [Department of Oncology and Pathology, Karolinska Institutet, Stockholm (Sweden); Department of Oncology, Radiology and Clinical Immunology, University of Uppsala, Uppsala (Sweden)

    2011-11-15

    Purpose: Preoperative chemoradiotherapy (CRT) is superior to radiotherapy (RT) in locally advanced rectal cancer, but the survival gain is limited. Late toxicity is, therefore, important. The aim was to compare late bowel, urinary, and sexual functions after CRT or RT. Methods and Materials: Patients (N = 207) with nonresectable rectal cancer were randomized to preoperative CRT or RT (2 Gy Multiplication-Sign 25 {+-} 5-fluorouracil/leucovorin). Extended surgery was often required. Self-reported late toxicity was scored according to the LENT SOMA criteria in a structured telephone interview and with questionnaires European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ-C30), International Index of Erectile Function (IIEF), and sexual function -vaginal changes questionnaire (SVQ). Results: Of the 105 patients alive in Norway and Sweden after 4 to 12 years of follow-up, 78 (74%) responded. More patients in the CRT group had received a stoma (73% vs. 52%, p = 0.09). Most patients without a stoma (7 of 12 in CRT group and 9 of 16 in RT group) had incontinence for liquid stools or gas. No stoma and good anal function were seen in 5 patients (11%) in the CRT group and in 11 (30%) in the RT group (p = 0.046). Of 44 patients in the CRT group, 12 (28%) had had bowel obstruction compared with 5 of 33 (15%) in the RT group (p = 0.27). One-quarter of the patients reported urinary incontinence. The majority of men had severe erectile dysfunction. Few women reported sexual activity during the previous month. However, the majority did not have concerns about their sex life. Conclusions: Fecal incontinence and erectile dysfunction are frequent after combined treatment for locally advanced rectal cancer. There was a clear tendency for the problems to be more common after CRT than after RT.

  2. A Scoping Analysis Of The Impact Of SiC Cladding On Late-Phase Accident Progression Involving CoreConcrete Interaction

    SciTech Connect (OSTI)

    Farmer, M. T.

    2015-11-01

    The overall objective of the current work is to carry out a scoping analysis to determine the impact of ATF on late phase accident progression; in particular, the molten-core concrete interaction portion of the sequence that occurs after the core debris fails the reactor vessel and relocates into containment. This additional study augments previous work by including kinetic effects that govern chemical reaction rates during core-concrete interaction. The specific ATF considered as part of this study is SiC-clad UO2.

  3. Chromosome Damage and Cell Proliferation Rates in In Vitro Irradiated Whole Blood as Markers of Late Radiation Toxicity After Radiation Therapy to the Prostate

    SciTech Connect (OSTI)

    Beaton, Lindsay A.; Ferrarotto, Catherine; Marro, Leonora; Samiee, Sara; Malone, Shawn; Grimes, Scott; Malone, Kyle; Wilkins, Ruth C.

    2013-04-01

    Purpose: In vitro irradiated blood samples from prostate cancer patients showing late normal tissue damage were examined for lymphocyte response by measuring chromosomal aberrations and proliferation rate. Methods and Materials: Patients were selected from a randomized trial evaluating the optimal timing of dose-escalated radiation and short-course androgen deprivation therapy. Of 438 patients, 3% experienced grade 3 late radiation proctitis and were considered to be radiosensitive. Blood samples were taken from 10 of these patients along with 20 matched samples from patients with grade 0 proctitis. The samples were irradiated at 6 Gy and, along with control samples, were analyzed for dicentric chromosomes and excess fragments per cell. Cells in first and second metaphase were also enumerated to determine the lymphocyte proliferation rate. Results: At 6 Gy, there were statistically significant differences between the radiosensitive and control cohorts for 3 endpoints: the mean number of dicentric chromosomes per cell (3.26 0.31, 2.91 0.32; P=.0258), the mean number of excess fragments per cell (2.27 0.23, 1.43 0.37; P<.0001), and the proportion of cells in second metaphase (0.27 0.10, 0.46 0.09; P=.0007). Conclusions: These results may be a valuable indicator for identifying radiosensitive patients and for tailoring radiation therapy.

  4. Asymptomatic and late-onset ornithine transcarbamylase deficiency caused by a A208T mutation: Clinical, biochemical and DNA analyses in a four-generation family

    SciTech Connect (OSTI)

    Ausems, M.G.E.M.; Bakker, E.; Kneppers, A.L.J.

    1997-01-20

    We describe a 4-generation family in which a previously healthy 10-year-old boy died of late-onset ornithine transcarbamylase (OTC) deficiency. Pedigree analysis and allopurinol loading tests in female relatives were not informative. A missense mutation (A208T) in the OTC gene was detected in the deceased patient and in several clinically healthy male and female relatives, the oldest male being 97 years old. OTC deficiency was established in autopsy liver tissue of the propositus and liver biopsy samples of his sister, mother, and a maternal uncle. The males had 4% and 6% residual activity, respectively, the females 58% and 67%, respectively. The observed relation between the mutation and the decreased OTC activity in liver tissue of these subjects suggests that the mutation is a deleterious one. Late-onset, {open_quotes}mild{close_quotes} OTC deficiency can have a fatal or a favorable outcome. The disease can segregate undetected in families. 16 refs., 1 fig., 1 tab.

  5. A KNOWLEDGE DISCOVERY STRATEGY FOR RELATING SEA SURFACE TEMPERATURES TO FREQUENCIES OF TROPICAL STORMS AND GENERATING PREDICTIONS OF HURRICANES UNDER 21ST-CENTURY GLOBAL WARMING SCENARIOS

    SciTech Connect (OSTI)

    Race, Caitlin; Steinbach, Michael; Ganguly, Auroop R; Semazzi, Fred; Kumar, Vipin

    2010-01-01

    The connections among greenhouse-gas emissions scenarios, global warming, and frequencies of hurricanes or tropical cyclones are among the least understood in climate science but among the most fiercely debated in the context of adaptation decisions or mitigation policies. Here we show that a knowledge discovery strategy, which leverages observations and climate model simulations, offers the promise of developing credible projections of tropical cyclones based on sea surface temperatures (SST) in a warming environment. While this study motivates the development of new methodologies in statistics and data mining, the ability to solve challenging climate science problems with innovative combinations of traditional and state-of-the-art methods is demonstrated. Here we develop new insights, albeit in a proof-of-concept sense, on the relationship between sea surface temperatures and hurricane frequencies, and generate the most likely projections with uncertainty bounds for storm counts in the 21st-century warming environment based in turn on the Intergovernmental Panel on Climate Change Special Report on Emissions Scenarios. Our preliminary insights point to the benefits that can be achieved for climate science and impacts analysis, as well as adaptation and mitigation policies, by a solution strategy that remains tailored to the climate domain and complements physics-based climate model simulations with a combination of existing and new computational and data science approaches.

  6. Particles and Forces

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Quarks, Gluons, and Co. Meet the Quirky Inhabitants of the Proton Saturday Morning Physics Saturday Morning Physics -- -- Texas A&M University Texas A&M University Dr. Rainer J. Fries February 21, 2009 Quarks, Gluons and Co. 2 Zooming in on the World around us Quarks, Gluons and Co. 3 Atoms Democritus, Greek philosopher ~ 400 B.C: "All matter is made up of very small indivisible elements" He called them 'atomos'. 19 th century chemistry confirms: there are only 92 different

  7. Trash

    SciTech Connect (OSTI)

    Not Available

    1986-12-01

    Waste disposal problems have been a social problem throughout history, but today's trash no longer has the high organic component that permitted relatively simple recycling procedures. The shift from individual to collective responsibility for waste disposal began after the Civil War. The Industrial Revolution of the 19th Century and the influx of petroleum products after World War II had major impacts on waste disposal. The author examines several approaches that include burial, burning, and recycling, then examines the role of each level of government. He concludes that society, government, and industry will have to assume a combined responsibility.

  8. Argonne Now Magazine - Summer 2014 | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Now Magazine - Summer 2014 In the summer 2014 issue of the Argonne magazine, learn about "The Science that Stumped Einstein," find out how we are addressing crime, social unrest, and buses by finding patterns in data in "City of Big Data," and take a trip back to 19th-century Chicago to get perspective on the ongoing issue of soot and carbon in the air in "The Volcano of a Hundred Thousand Mouths." Also featuring Ask a Scientist, fun facts, infographics, The Secret

  9. NuSTAR OBSERVATIONS OF GRB130427A ESTABLISH A SINGLE COMPONENT SYNCHROTRON AFTERGLOW ORIGIN FOR THE LATE OPTICAL TO MULTI-GEV EMISSION

    SciTech Connect (OSTI)

    Kouveliotou, C.; Racusin, J. L.; Gehrels, N.; McEnery, J. E.; Zhang, W. W.; Bellm, E.; Harrison, F. A.; Vianello, G.; Oates, S.; Fryer, C. L.; Boggs, S. E.; Craig, W. W.; Christensen, F. E.; Dermer, C. D.; Hailey, C. J.; Melandri, A.; Tagliaferri, G.; Mundell, C. G.; Stern, D. K. E-mail: granot@openu.ac.il

    2013-12-10

    GRB130427A occurred in a relatively nearby galaxy; its prompt emission had the largest GRB fluence ever recorded. The afterglow of GRB130427A was bright enough for the Nuclear Spectroscopic Telescope ARray (NuSTAR) to observe it in the 3-79keV energy range long after its prompt emission (?1.5 and 5days). This range, where afterglow observations were previously not possible, bridges an important spectral gap. Combined with Swift, Fermi, and ground-based optical data, NuSTAR observations unambiguously establish a single afterglow spectral component from optical to multi-GeV energies a day after the event, which is almost certainly synchrotron radiation. Such an origin of the late-time Fermi/Large Area Telescope >10GeV photons requires revisions in our understanding of collisionless relativistic shock physics.

  10. BANYAN. V. A SYSTEMATIC ALL-SKY SURVEY FOR NEW VERY LATE-TYPE LOW-MASS STARS AND BROWN DWARFS IN NEARBY YOUNG MOVING GROUPS

    SciTech Connect (OSTI)

    Gagn, Jonathan; Lafrenire, David; Doyon, Ren; Malo, Lison; Artigau, tienne

    2015-01-10

    We present the BANYAN All-Sky Survey (BASS) catalog, consisting of 228 new late-type (M4-L6) candidate members of nearby young moving groups (YMGs) with an expected false-positive rate of ?13%. This sample includes 79 new candidate young brown dwarfs and 22 planetary-mass objects. These candidates were identified through the first systematic all-sky survey for late-type low-mass stars and brown dwarfs in YMGs. We cross-matched the Two Micron All Sky Survey and AllWISE catalogs outside of the galactic plane to build a sample of 98,970 potential ?M5 dwarfs in the solar neighborhood and calculated their proper motions with typical precisions of 5-15 mas yr{sup 1}. We selected highly probable candidate members of several YMGs from this sample using the Bayesian Analysis for Nearby Young AssociatioNsII tool (BANYANII). We used the most probable statistical distances inferred from BANYANII to estimate the spectral type and mass of these candidate YMG members. We used this unique sample to show tentative signs of mass segregation in the AB Doradus moving group and the Tucana-Horologium and Columba associations. The BASS sample has already been successful in identifying several new young brown dwarfs in earlier publications, and will be of great interest in studying the initial mass function of YMGs and for the search of exoplanets by direct imaging; the input sample of potential close-by ?M5 dwarfs will be useful to study the kinematics of low-mass stars and brown dwarfs and search for new proper motion pairs.

  11. Individualized 3D Reconstruction of Normal Tissue Dose for Patients With Long-term Follow-up: A Step Toward Understanding Dose Risk for Late Toxicity

    SciTech Connect (OSTI)

    Ng, Angela; Brock, Kristy K.; Sharpe, Michael B.; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Moseley, Joanne L.; Craig, Tim; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Hodgson, David C.

    2012-11-15

    Purpose: Understanding the relationship between normal tissue dose and delayed radiation toxicity is an important component of developing more effective radiation therapy. Late outcome data are generally available only for patients who have undergone 2-dimensional (2D) treatment plans. The purpose of this study was to evaluate the accuracy of 3D normal tissue dosimetry derived from reconstructed 2D treatment plans in Hodgkin's lymphoma (HL) patients. Methods and Materials: Three-dimensional lung, heart, and breast volumes were reconstructed from 2D planning radiographs for HL patients who received mediastinal radiation therapy. For each organ, a reference 3D organ was modified with patient-specific structural information, using deformable image processing software. Radiation therapy plans were reconstructed by applying treatment parameters obtained from patient records to the reconstructed 3D volumes. For each reconstructed organ mean dose (D{sub mean}) and volumes covered by at least 5 Gy (V{sub 5}) and 20Gy (V{sub 20}) were calculated. This process was performed for 15 patients who had both 2D and 3D planning data available to compare the reconstructed normal tissue doses with those derived from the primary CT planning data and also for 10 historically treated patients with only 2D imaging available. Results: For patients with 3D planning data, the normal tissue doses could be reconstructed accurately using 2D planning data. Median differences in D{sub mean} between reconstructed and actual plans were 0.18 Gy (lungs), -0.15 Gy (heart), and 0.30 Gy (breasts). Median difference in V{sub 5} and V{sub 20} were less than 2% for each organ. Reconstructed 3D dosimetry was substantially higher in historical mantle-field treatments than contemporary involved-field mediastinal treatments: average D{sub mean} values were 15.2 Gy vs 10.6 Gy (lungs), 27.0 Gy vs 14.3 Gy (heart), and 8.0 Gy vs 3.2 Gy (breasts). Conclusions: Three-dimensional reconstruction of absorbed dose to organs at risk can be estimated accurately many years after exposure by using limited 2D data. Compared to contemporary involved-field treatments, normal tissue doses were significantly higher in historical mantle-field treatments. These methods build capacity to quantify the relationship between 3D normal tissue dose and observed late effects.

  12. THERMAL EMISSION IN THE EARLY X-RAY AFTERGLOWS OF GAMMA-RAY BURSTS: FOLLOWING THE PROMPT PHASE TO LATE TIMES

    SciTech Connect (OSTI)

    Friis, Mette [Centre for Astrophysics and Cosmology, Science Institute, University of Iceland, Dunhagi 5, 107 Reykjavik (Iceland); Watson, Darach, E-mail: mef4@hi.is, E-mail: darach@dark-cosmology.dk [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen O (Denmark)

    2013-07-01

    Thermal radiation, peaking in soft X-rays, has now been detected in a handful of gamma-ray burst (GRB) afterglows and has to date been interpreted as shock break-out of the GRB's progenitor star. We present a search for thermal emission in the early X-ray afterglows of a sample of Swift bursts selected by their brightness in X-rays at early times. We identify a clear thermal component in eight GRBs and track the evolution. We show that at least some of the emission must come from highly relativistic material since two show an apparent super-luminal expansion of the thermal component. Furthermore, we determine very large luminosities and high temperatures for many of the components-too high to originate in a supernova shock break-out. Instead, we suggest that the component may be modeled as late photospheric emission from the jet, linking it to the apparently thermal component observed in the prompt emission of some GRBs at gamma-ray and hard X-ray energies. By comparing the parameters from the prompt emission and the early afterglow emission, we find that the results are compatible with the interpretation that we are observing the prompt quasi-thermal emission component in soft X-rays at a later point in its evolution.

  13. Internal energy dissipation of gamma-ray bursts observed with Swift: Precursors, prompt gamma-rays, extended emission, and late X-ray flares

    SciTech Connect (OSTI)

    Hu, You-Dong; Liang, En-Wei; Xi, Shao-Qiang; Peng, Fang-Kun; Lu, Rui-Jing; Lü, Lian-Zhong; Zhang, Bing E-mail: Zhang@physics.unlv.edu

    2014-07-10

    We jointly analyze the gamma-ray burst (GRB) data observed with Burst Alert Telescope (BAT) and X-ray Telescope on board the Swift mission to present a global view on the internal energy dissipation processes in GRBs, including precursors, prompt gamma-ray emission, extended soft gamma-ray emission, and late X-ray flares. The Bayesian block method is utilized to analyze the BAT light curves to identify various emission episodes. Our results suggest that these emission components likely share the same physical origin, which is the repeated activation of the GRB central engine. What we observe in the gamma-ray band may be a small part of more extended underlying activities. The precursor emission, which is detected in about 10% of Swift GRBs, is preferably detected in those GRBs that have a massive star core-collapse origin. The soft extended emission tail, on the other hand, is preferably detected in those GRBs that have a compact star merger origin. Bright X-ray emission is detected during the BAT quiescent phases prior to subsequent gamma-ray peaks, implying that X-ray emission may be detectable prior the BAT trigger time. Future GRB alert instruments with soft X-ray capability are essential for revealing the early stages of GRB central engine activities, and shedding light on jet composition and the jet launching mechanism in GRBs.

  14. Impact of TBI on late effects in children treated by megatherapy for Stage IV neuroblastoma. A study of the French Society of Pediatric oncology

    SciTech Connect (OSTI)

    Flandin, Isabelle; Michon, Jean; Pinkerton, Ross; Coze, Carole; Stephan, Jean Louis; Fourquet, Bernard; Valteau-Couanet, Dominique; Bergeron, Christophe; Philip, Thierry; Carrie, Christian . E-mail: carrie@lyon.fnclcc.fr

    2006-04-01

    Purpose: To determine the contribution of total body irradiation (TBI) to late sequelae in children treated with high-dose chemotherapy and autologous bone marrow transplantation for Stage IV neuroblastoma. Patients and Methods: We compared two populations that were similar with regard to age, stage, pre-autologous bone marrow transplantation chemotherapy (CT) regimen, period of treatment, and follow-up (12 years). The TBI group (n = 32) received TBI as part of the megatherapy procedure (1982-1993), whereas the CT group (n 30) received conditioning without TBI (1985-1992). Analysis 12 years later focused on growth, weight and corpulence (body mass index) delay; hormonal deficiencies; liver, kidney, heart, ear, eye, and dental sequelae; school performance; and the incidence of secondary tumors. Results: Impact of TBI was most marked in relation to growth and weight delay, although the mean delay was not severe, probably because of treatment with growth hormones. Other consequences of TBI were thyroid insufficiency, cataracts, and a high incidence of secondary tumors. Hearing loss and dental agenesis were more prominent in the group treated with CT alone. No differences were observed in school performance. Conclusion: The most frequent side effects of TBI were cataracts, thyroid insufficiency, and growth delay, but more worrying is the risk of secondary tumors. Because of the young mean age of patients and the toxicity of TBI regimens without any survival advantage, regimens without TBI are preferable in the management of Stage IV neuroblastoma.

  15. Ultrasonic Nakagami-parameter characterization of parotid-gland injury following head-and-neck radiotherapy: A feasibility study of late toxicity

    SciTech Connect (OSTI)

    Yang, Xiaofeng; Wu, Ning; Wang, Yuefeng; Tridandapani, Srini; School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332; Winship Cancer Institute, Emory University, Atlanta, Georgia 30322 ; Beitler, Jonathan J.; Yu, David S.; Curran, Walter J.; Liu, Tian; Bruner, Deborah W.; Winship Cancer Institute, Emory University, Atlanta, Georgia 30322; School of Nursing, Emory University, Atlanta, Georgia 30322

    2014-02-15

    Purpose: The study aims to investigate whether Nakagami parametersestimated from the statistical distribution of the backscattered ultrasound radio-frequency (RF) signalscould provide a means for quantitative characterization of parotid-gland injury resulting from head-and-neck radiotherapy. Methods: A preliminary clinical study was conducted with 12 postradiotherapy patients and 12 healthy volunteers. Each participant underwent one ultrasound study in which ultrasound scans were performed in the longitudinal, i.e., vertical orientation on the bilateral parotids. For the 12 patients, the mean radiation dose to the parotid glands was 37.7 9.5 Gy, and the mean follow-up time was 16.3 4.8 months. All enrolled patients experienced grade 1 or 2 late salivary-gland toxicity (RTOG/EORTC morbidity scale). The normal parotid glands served as the control group. The Nakagami-scaling and Nakagami-shape parameters were computed from the RF data to quantify radiation-induced parotid-gland changes. Results: Significant differences in Nakagami parameters were observed between the normal and postradiotherapy parotid glands. Compared with the control group, the Nakagami-scaling parameter of the postradiotherapy group decreased by 25.8% (p < 0.001), and the Nakagami-shape parameter decreased by 31.3% (p < 0.001). The area under the receiver operating characteristic curve was 0.85 for the Nakagami-scaling parameter and was 0.95 for the Nakagami-shape parameter, which further demonstrated the diagnostic efficiency of the Nakagami parameters. Conclusions: Nakagami parameters could be used to quantitatively measure parotid-gland injury following head-and-neck radiotherapy. Moreover, the clinical feasibility was demonstrated and this study provides meaningful preliminary data for future clinical investigation.

  16. Late Holocene shoreline behavior in embayments of Lake Michigan: Influence of quasi-periodic lake-level variations and sediment supply

    SciTech Connect (OSTI)

    Thompson, T.A.; Baedke, S.J. (Indiana Univ., Bloomington, IN (United States). Indiana Geological Survey)

    1994-04-01

    Lake Michigan contains numerous former embayments into glacial deposits or bedrock. Many of the embayments contain dunes, spits, and captured lakes, but others contain arcuate strandplains of beach ridges. The strandplains are a geologic record of shoreline behavior and lake-level variation throughout the late Holocene. The larger strandplains show similar long-term patterns of beach-ridge development. The similar patterns are expected because variations in lake level are a primary control on shoreline behavior, and all embayments would have experienced relatively the same lake-level changes. Some variations in the long-term pattern of shoreline development do occur between strandplains. These dissimilarities are primarily a function of different rates of sediment supply to the shoreline of each embayment. Beach-ridge development within embayments can be represented on a rate of water level change versus rate of sediment supply diagram (Curray diagram) as three superimposed ovals on the positive rate of sediment supply side of the diagram. The three stacked ovals represent the three quasi-periodic lake-level variations defined by Thompson (1992) and show the position of the shoreline for a given time within the Curray diagram fields. For shorelines with a high rate of sediment supply, only the 30-year quasi-periodic variation would reach the aggradation line. For shorelines having significantly less sediment supply, rising lake level on the 150- and 600-year variations would force the 30-year oval across the aggradation line and well into the depositional and possibly the erosional transgression fields. Under these conditions erosion would occur that may remove, stack, or at least prevent one or more beach ridges from being developed.

  17. Dosimetric difference amongst 3 techniques: TomoTherapy, sliding-window intensity-modulated radiotherapy (IMRT), and RapidArc radiotherapy in the treatment of late-stage nasopharyngeal carcinoma (NPC)

    SciTech Connect (OSTI)

    Lee, Francis Kar-ho Yip, Celia Wai-yi; Cheung, Frankie Chun-hung; Leung, Alex Kwok-cheung; Chau, Ricky Ming-chun; Ngan, Roger Kai-cheong

    2014-04-01

    To investigate the dosimetric difference amongst TomoTherapy, sliding-window intensity-modulated radiotherapy (IMRT), and RapidArc radiotherapy in the treatment of late-stage nasopharyngeal carcinoma (NPC). Ten patients with late-stage (Stage III or IV) NPC treated with TomoTherapy or IMRT were selected for the study. Treatment plans with these 3 techniques were devised according to departmental protocol. Dosimetric parameters for organ at risk and treatment targets were compared between TomoTherapy and IMRT, TomoTherapy and RapidArc, and IMRT and RapidArc. Comparison amongst the techniques was done by statistical tests on the dosimetric parameters, total monitor unit (MU), and expected delivery time. All 3 techniques achieved similar target dose coverage. TomoTherapy achieved significantly lower doses in lens and mandible amongst the techniques. It also achieved significantly better dose conformity to the treatment targets. RapidArc achieved significantly lower dose to the eye and normal tissue, lower total MU, and less delivery time. The dosimetric advantages of the 3 techniques were identified in the treatment of late-stage NPC. This may serve as a guideline for selection of the proper technique for different clinical cases.

  18. Extended (5-year) Outcomes of Accelerated Partial Breast Irradiation Using MammoSite Balloon Brachytherapy: Patterns of Failure, Patient Selection, and Dosimetric Correlates for Late Toxicity

    SciTech Connect (OSTI)

    Vargo, John A.; Verma, Vivek; Kim, Hayeon; Kalash, Ronny; Heron, Dwight E.; Johnson, Ronald; Beriwal, Sushil

    2014-02-01

    Purpose: Accelerated partial breast irradiation (APBI) with balloon and catheter-based brachytherapy has gained increasing popularity in recent years and is the subject of ongoing phase III trials. Initial data suggest promising local control and cosmetic results in appropriately selected patients. Long-term data continue to evolve but are limited outside of the context of the American Society of Breast Surgeons Registry Trial. Methods and Materials: A retrospective review of 157 patients completing APBI after breast-conserving surgery and axillary staging via high-dose-rate {sup 192}Ir brachytherapy from June 2002 to December 2007 was made. APBI was delivered with a single-lumen MammoSite balloon-based applicator to a median dose of 34 Gy in 10 fractions over a 5-day period. Tumor coverage and critical organ dosimetry were retrospectively collected on the basis of computed tomography completed for conformance and symmetry. Results: At a median follow-up time of 5.5 years (range, 0-10.0 years), the 5-year and 7-year actuarial incidences of ipsilateral breast control were 98%/98%, of nodal control 99%/98%, and of distant control 99%/99%, respectively. The crude rate of ipsilateral breast recurrence was 2.5% (n=4); of nodal failure, 1.9% (n=3); and of distant failure, 0.6% (n=1). The 5-year and 7-year actuarial overall survival rates were 89%/86%, with breast cancerspecific survival of 100%/99%, respectively. Good to excellent cosmetic outcomes were achieved in 93.4% of patients. Telangiectasia developed in 27% of patients, with 1-year, 3-year, and 5-year actuarial incidence of 7%/24%/33%; skin dose >100% significantly predicted for the development of telangiectasia (50% vs 14%, P<.0001). Conclusions: Long-term single-institution outcomes suggest excellent tumor control, breast cosmesis, and minimal late toxicity. Skin toxicity is a function of skin dose, which may be ameliorated with dosimetric optimization afforded by newer multicatheter brachytherapy applicators and a more rigorous skin dose constraint of ?100%.

  19. Formation of short-lived radionuclides in the protoplanetary disk during late-stage irradiation of a volatile-rich reservoir

    SciTech Connect (OSTI)

    Jacobsen, B; Matzel, J; Hutcheon, I D; Krot, A N; Yin, Q -; Nagashima, K; Ramon, E; Weber, P; Ishii, H; Ciesla, F

    2010-11-30

    The origin of short-lived (t{sub 1/2} < 5 Myr) and now extinct radionuclides ({sup 10}Be, {sup 26}Al, {sup 36}Cl, {sup 41}Ca, {sup 53}Mn, {sup 60}Fe; hereafter SLRs) is fundamental to understanding the formation of the early solar system. Two distinct classes of models have been proposed to explain the origin of SLRs: (1) injection from a nearby stellar source (e.g., supernova, asymptotic giant branch star or Wolf-Rayet star) and (2) solar energetic particle irradiation of dust and gas near the proto-Sun. Recent studies have demonstrated that {sup 36}Cl was extant in the early solar system. However, its presence, initial abundance and the noticeable decoupling from {sup 26}Al raise serious questions about the origin of SLRs. Here we report {sup 36}Cl-{sup 36}S and {sup 26}Al-{sup 26}Mg systematics for wadalite and grossular, secondary minerals in a calcium-aluminum-rich inclusion (CAI) from the CV chondrite Allende that allow us to reassess the origin of SLRs. The inferred abundance of {sup 36}Cl in wadalite, corresponding to a {sup 36}Cl/{sup 35}Cl ratio of (1.81 {+-} 0.13) x 10{sup -5}, is the highest {sup 36}Cl abundance reported in any early solar system material. The high level of {sup 36}Cl in wadalite and the absence of {sup 26}Al ({sup 26}Al/{sup 27}Al {le} 3.9 x 10{sup -6}) in co-existing grossular indicates that (1) {sup 36}Cl formed by late-stage solar energetic particle irradiation and (2) the production of {sup 36}Cl, recorded by secondary minerals, is unrelated to the origin of {sup 26}Al and other SLRs ({sup 10}Be, {sup 53}Mn) recorded by primary minerals of CAIs and chondrules. We conclude that 36Cl was produced by solar energetic particle irradiation of a volatile-rich reservoir in an optically thin protoplanetary disk adjacent to the accretion region of the CV chondrite parent asteroid.

  20. Predictors of Grade 3 or Higher Late Bowel Toxicity in Patients Undergoing Pelvic Radiation for Cervical Cancer: Results From a Prospective Study

    SciTech Connect (OSTI)

    Chopra, Supriya; Dora, Tapas; Chinnachamy, Anand N.; Thomas, Biji; Kannan, Sadhna; Engineer, Reena; Mahantshetty, Umesh; Phurailatpam, Reena; Paul, Siji N.; Shrivastava, Shyam Kishore

    2014-03-01

    Purpose: The present study investigates relationship between dosevolume parameters and severe bowel toxicity after postoperative radiation treatment (PORT) for cervical cancer. Methods and Materials: From June 2010 to December 2012, a total of 71 patients undergoing PORT were included. Small bowel (SB) and large bowel (LB) loops were contoured 2cm above the target volume. The volume of SB and LB that received 15Gy, 30Gy, and 40Gy was calculated (V15 SB, V15 LB, V30 SB, V30 LB, V40 SB, V 40 LB). On follow-up, bowel toxicity was scored using Common Terminology Criteria for Adverse Events (CTCAE), version 3.0. A reciever operating characteristic (ROC) curve identified volume thresholds that predicted for grade 3 or higher toxicity with highest specificity. All data was dichotomized across these identified cut-off values. Univariate and multivariate analysis was performed using SPSS, version15. Results: The median patient age was 47years (range, 35-65years). Of the 71 patients, 46 received image-guided intensity modulated radiation therapy, and 25 received conformal radiation (50Gy in 25 fractions for 5weeks). Overall, 63 of 71 patients received concurrent chemotherapy. On a median follow-up of 18months (range, 8-29months), grade 2 or higher bowel toxicity was seen in 22 of 71 patients (30.9%) and grade 3 or higher bowel toxicity was seen in 9 patients (12.6%). On univariate analysis, V15 SB <275 cc (P=.01), V30 SB <190 cc (P=.02), V40 SB <150 cc (P=.01), and V15 LB <250 cc (P=.03), and V40 LB <90 cc (P=.04) predicted for absence of grade 3 or higher toxicity. No other patient- or treatment-related factors were statistically significant. On multivariate analysis, only V15 SB (P=.002) and V15 LB (P=.03) were statistically significant. Conclusions: V 15Gy SB and LB are independent predictors of late grade 3 or higher toxicity. Restricting V15 SB and V15 LB to <275 cc and <250 cc can reduce grade 3 or higher toxicity to less than 5%.

  1. Preface for small-molecule activation: Carbon-containing fuels

    SciTech Connect (OSTI)

    Fujita, Etsuko; Goldman, Alan S.

    2015-06-01

    For millennia, human transportation was fueled largely through the consumption of biomass (by humans or domestic animals) and to a lesser extent by wind. The 19th century saw a major shift to coal-fueled transportation, with trains and ships powered by steam engines. A second major shift in the fueling of transportation occurred in the 20th century, this time to petroleum. Thus, this transition was not driven by the cost or ease of obtaining energy from oil wells vs. coal mines – indeed, the cost of petroleum has always been higher than coal on a per-unit-energy basis – but rather by the tremendous technical advantages of powering engines with liquids, specifically liquid hydrocarbons.

  2. Historical development of the windmill

    SciTech Connect (OSTI)

    Shepherd, D.G.

    1990-12-01

    Throughout history, windmill technology represented the highest levels of development in those technical fields we now refer to as mechanical engineering, civil engineering, and aerodynamics. This report describes key stages in the technical development of windmills as prime movers -- from antiquity to construction of the well-known Smith-Putnam wind turbine generator of the 1940's, which laid the foundation for modern wind turbines. Subjects covered are windmills in ancient times; the vertical-axis Persian windmill; the horizontal-axis European windmill (including both post mills and tower mills); technology improvements in sails, controls, and analysis; the American farm windmill; the transition from windmills to wind turbines for generating electricity at the end of the 19th century; and wind turbine development in the first half of the 20th century. 43 refs.

  3. Preface: Forum on small molecules related to carbon-containing fuels

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Fujita, Etsuko; Goldman, Alan S.

    2015-06-01

    For millennia, human transportation was fueled largely through the consumption of biomass (by humans or domestic animals) and to a lesser extent by wind. The 19th century saw a major shift to coal-fueled transportation, with trains and ships powered by steam engines. A second major shift in the fueling of transportation occurred in the 20th century, this time to petroleum. This transition was not driven by the cost or ease of obtaining energy from oil wells vs. coal mines indeed, the cost of petroleum has always been higher than coal on a per-unit-energy basis but rather by themoretremendous technical advantages of powering engines with liquids, specifically liquid hydrocarbons.less

  4. Preface for small-molecule activation: Carbon-containing fuels

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Fujita, Etsuko; Goldman, Alan S.

    2015-06-01

    For millennia, human transportation was fueled largely through the consumption of biomass (by humans or domestic animals) and to a lesser extent by wind. The 19th century saw a major shift to coal-fueled transportation, with trains and ships powered by steam engines. A second major shift in the fueling of transportation occurred in the 20th century, this time to petroleum. Thus, this transition was not driven by the cost or ease of obtaining energy from oil wells vs. coal mines – indeed, the cost of petroleum has always been higher than coal on a per-unit-energy basis – but rather bymore » the tremendous technical advantages of powering engines with liquids, specifically liquid hydrocarbons.« less

  5. Late Toxicity and Patient Self-Assessment of Breast Appearance/Satisfaction on RTOG 0319: A Phase 2 Trial of 3-Dimensional Conformal Radiation Therapy-Accelerated Partial Breast Irradiation Following Lumpectomy for Stages I and II Breast Cancer

    SciTech Connect (OSTI)

    Chafe, Susan; Moughan, Jennifer; McCormick, Beryl; Wong, John; Pass, Helen; Rabinovitch, Rachel; Arthur, Douglas W.; Petersen, Ivy; White, Julia; Vicini, Frank A.

    2013-08-01

    Purpose: Late toxicities and cosmetic analyses of patients treated with accelerated partial breast irradiation (APBI) on RTOG 0319 are presented. Methods and Materials: Patients with stages I to II breast cancer ?3 cm, negative margins, and ?3 positive nodes were eligible. Patients received three-dimensional conformal external beam radiation therapy (3D-CRT; 38.5 Gy in 10 fractions twice daily over 5 days). Toxicity and cosmesis were assessed by the patient (P), the radiation oncologist (RO), and the surgical oncologist (SO) at 3, 6, and 12 months from the completion of treatment and then annually. National Cancer Institute Common Terminology Criteria for Adverse Events, version 3.0, was used to grade toxicity. Results: Fifty-two patients were evaluable. Median follow-up was 5.3 years (range, 1.7-6.4 years). Eighty-two percent of patients rated their cosmesis as good/excellent at 1 year, with rates of 64% at 3 years. At 3 years, 31 patients were satisfied with the treatment, 5 were not satisfied but would choose 3D-CRT again, and none would choose standard radiation therapy. The worst adverse event (AE) per patient reported as definitely, probably, or possibly related to radiation therapy was 36.5% grade 1, 50% grade 2, and 5.8% grade 3 events. Grade 3 AEs were all skin or musculoskeletal-related. Treatment-related factors were evaluated to potentially establish an association with observed toxicity. Surgical bed volume, target volume, the number of beams used, and the use of bolus were not associated with late cosmesis. Conclusions: Most patients enrolled in RTOG 0319 were satisfied with their treatment, and all would choose to have the 3D-CRT APBI again.

  6. Research universities for the 21st century

    SciTech Connect (OSTI)

    Gover, J.; Huray, P.G.

    1998-05-01

    The `public outcomes` from research universities are educated students and research that extends the frontiers of knowledge. Measures of these `public outcomes` are inadequate to permit either research or education consumers to select research universities based on quantitative performance data. Research universities annually spend over $20 billion on research; 60% of these funds are provided by Federal sources. Federal funding for university research has recently grown at an annual rate near 6% during a time period when other performers of Federal research have experienced real funding cuts. Ten universities receive about 25% of the Federal funds spent on university research. Numerous studies of US research universities are reporting storm clouds. Concerns include balancing research and teaching, the narrow focus of engineering education, college costs, continuing education, and public funding of foreign student education. The absence of research on the `public outcomes` from university research results in opinion, politics, and mythology forming the basis of too many decisions. Therefore, the authors recommend studies of other nations` research universities, studies of various economic models of university research, analysis of the peer review process and how well it identifies the most capable research practitioners and at what cost, and studies of research university ownership of intellectual property that can lead to increased `public outcomes` from publicly-funded research performed by research universities. They advocate two practices that could increase the `public outcomes` from university research. These are the development of science roadmaps that link science research to `public outcomes` and `public outcome` metrics. Changes in the university research culture and expanded use of the Internet could also lead to increased `public outcomes`. They recommend the use of tax incentives to encourage companies to develop research partnerships with research universities.

  7. MCNP application for the 21 century

    SciTech Connect (OSTI)

    McKinney, M.C.

    2000-08-01

    The Los Alamos National Laboratory (LANL) Monte Carlo N-Particle radiation transport code, MCNP, has become an international standard for a wide spectrum of neutron, photon, and electron radiation transport applications. The latest version of the code, MCNP 4C, was released to the Radiation Safety Information Computational Center (RSICC) in February 2000. This paper describes the code development philosophy, new features and capabilities, applicability to various problems, and future directions.

  8. Nuclear Photonics for the 21st Century

    SciTech Connect (OSTI)

    Barty, Christopher P.J.

    2015-03-10

    Lasers and laser-based sources are now routinely used to control and manipulate nuclear processes, e.g. fusion, fission and resonant nuclear excitation. Two such “nuclear photonics” activities with the potential for profound societal impact will be reviewed in this presentation: the pursuit of laser-driven inertial confinement fusion at the National Ignition Facility and the development of laser-based, mono-energetic gamma-rays for isotope-specific detection, assay and imaging of materials.

  9. Steel: Material for the 21. century

    SciTech Connect (OSTI)

    1996-01-01

    In spite of inroads by a range of competing materials, steel is still the primary structural material because of its outstanding strength, ductility, fracture toughness, repairability, and recyclability. Over the past ten years, advances in steelmaking and processing technologies have enabled the development of a wide range of new steel products with improved properties. For example, combinations of closely controlled chemical composition, rolling practices, and cooling rates now permit the production of steels with enhanced fracture toughness and lower susceptibility to hydrogen cracking.

  10. Muon Physics in the 21st Century

    SciTech Connect (OSTI)

    Marciano, Bill

    2005-05-11

    Intense muon sources have great potential in fundamental physics and applied science. An overview of future possibilities ranging from muon-electron conversion to muon catalyzed fusion and medical diagnostics will be given.

  11. MCNP APPLICATIONS FOR THE 21ST CENTURY

    SciTech Connect (OSTI)

    G. MCKINNEY; T. BOOTH; ET AL

    2000-10-01

    The Los Alamos National Laboratory (LANL) Monte Carlo N-Particle radiation transport code, MCNP, has become an international standard for a wide spectrum of neutron, photon, and electron radiation transport applications. The latest version of the code, MCNP 4C, was released to the Radiation Safety Information Computational Center (RSICC) in February 2000. This paper describes the code development philosophy, new features and capabilities, applicability to various problems, and future directions.

  12. Century Wind Project | Open Energy Information

    Open Energy Info (EERE)

    EnXco Energy Purchaser MidAmerican Energy Location Wright and Hamilton Counties IA Coordinates 42.504259, -93.646524 Show Map Loading map... "minzoom":false,"mappings...

  13. Century Wind Project Expansion | Open Energy Information

    Open Energy Info (EERE)

    EnXco Energy Purchaser MidAmerican Energy Location Wright and Hamilton Counties IA Coordinates 42.509141, -93.682151 Show Map Loading map... "minzoom":false,"mappings...

  14. Transportation in the twenty-first century

    SciTech Connect (OSTI)

    Coffey, H.T.

    1991-01-01

    New energy-efficient and environmentally-sound magnetically levitated (maglev) transportation systems are being developed that have the potential to supplement and extend the intercity portion of our transportation system, and to alleviate part of the commuter congestion on our highways. Prototype passenger-carrying maglev vehicles are now operating in Japan and Germany. The capabilities of these systems, described in science fiction over two decades ago, are no longer speculative. They will be capable of transporting 100--150 passengers per vehicles or 1500 passengers per train at speeds of 250--350 mph. While performing many of the same functions of short-haul aircraft, these electrically powered vehicles: do not emit pollutants along the route; use about 1/3 the energy per passenger mile of modern aircraft; do not contact the guideway and therefore minimize maintenance; are silent except for the noise of air passing over the body. This paper assesses current maglev technology. 7 refs., 5 figs.

  15. Transportation in the twenty-first century

    SciTech Connect (OSTI)

    Coffey, H.T.

    1991-12-01

    New energy-efficient and environmentally-sound magnetically levitated (maglev) transportation systems are being developed that have the potential to supplement and extend the intercity portion of our transportation system, and to alleviate part of the commuter congestion on our highways. Prototype passenger-carrying maglev vehicles are now operating in Japan and Germany. The capabilities of these systems, described in science fiction over two decades ago, are no longer speculative. They will be capable of transporting 100--150 passengers per vehicles or 1500 passengers per train at speeds of 250--350 mph. While performing many of the same functions of short-haul aircraft, these electrically powered vehicles: do not emit pollutants along the route; use about 1/3 the energy per passenger mile of modern aircraft; do not contact the guideway and therefore minimize maintenance; are silent except for the noise of air passing over the body. This paper assesses current maglev technology. 7 refs., 5 figs.

  16. Water in the 21st Century

    SciTech Connect (OSTI)

    Piechota, Thomas C

    2013-02-08

    This research project focused on sustainability issues in the southwest U.S. with an emphasis on water and energy. The efforts were directed through the UNLV Urban Sustainability Office with the funding used to develop a sustainability strategic plan; conduct extensive community outreach in the greater metropolitan area; provide seed money for multidisciplinary research teams to conduct studies in the areas of ecological, socio-cultural, and economic sustainability leading to community-based solutions; and to provide service-learning opportunities for UNLV graduate and undergraduate students. The research advanced understanding of urban and regional water issues with a particular focus on climate change and climate variability in the southwest. In addition, various events were held to promote discussion on energy, water, and sustainability discussions in the community. The impact of this research was broad dissemination of research through 13 peer-reviewed publications, learning opportunities for countless students as a result of class room equipment upgrades (see report for upgrade details), and new research funding for further advancement of these research efforts.

  17. India and the 21st Century Power Partnership; 21st Century Power Partnership

    SciTech Connect (OSTI)

    2015-05-13

    Indian leadership has been crucial in both the establishment of the foundational capabilities of the Power Partnership as well as the realization of opportunities for applied policy implementation. Understanding policy regimes that support and accelerate the transition to clean, smart, efficient, affordable, and reliable electricity will help inform decisions that enable innovative solutions, or even disruptive innovations. India has already demonstrated a wide variety of business model innovation in a wide range of industries. Its potential to do the same in the power sector is an enormous opportunity. Indian contributions to international knowledge about the legal, regulatory and business environment will be an integral component of the Power Partnership program.

  18. THE RETURN OF THE ANDROMEDIDS METEOR SHOWER

    SciTech Connect (OSTI)

    Wiegert, Paul A.; Brown, Peter G.; Weryk, Robert J.; Wong, Daniel K.

    2013-03-15

    The Andromedid meteor shower underwent spectacular outbursts in 1872 and 1885, producing thousands of visual meteors per hour and described as ''stars fell like rain'' in Chinese records of the time. The shower originates from comet 3D/Biela whose disintegration in the mid-1800's is linked to the outbursts, but the shower has been weak or absent since the late 19th century. This shower returned in 2011 December with a zenithal hourly rate of approximately 50, the strongest return in over a hundred years. Some 122 probable Andromedid orbits were detected by the Canadian Meteor Orbit Radar while one possible brighter Andromedid member was detected by the Southern Ontario Meteor Network and several single station possible Andromedids by the Canadian Automated Meteor Observatory. The shower outburst occurred during 2011 December 3-5. The radiant at R.A. +18 Degree-Sign and decl. +56 Degree-Sign is typical of the ''classical'' Andromedids of the early 1800s, whose radiant was actually in Cassiopeia. Numerical simulations of the shower were necessary to identify it with the Andromedids, as the observed radiant differs markedly from the current radiant associated with that shower. The shower's orbital elements indicate that the material involved was released before 3D/Biela's breakup prior to 1846. The observed shower in 2011 had a slow geocentric speed (V{sub G} = 16 km s{sup -1}) and was comprised of small particles: the mean measured mass from the radar is {approx}5 Multiplication-Sign 10{sup -7} kg, corresponding to radii of 0.5 mm at a bulk density of 1000 kg m{sup -3}. Numerical simulations of the parent comet indicate that the meteoroids of the 2011 return of the Andromedids shower were primarily ejected during 3D/Biela's 1649 perihelion passage. The orbital characteristics, radiant, and timing as well as the absence of large particles in the streamlet are all broadly consistent with simulations. However, simulations of the 1649 perihelion passage necessitate going back five Lyapunov times (which is only 25 yr for the highly perturbed parent). As a result, the stream evolution is somewhat uncertain and some discrepancy with the observations is to be expected: the radiant is 8 Degree-Sign off, the inclination 3 Degree-Sign higher, and the peak of the shower occurs a day earlier than predicted. Predictions are made regarding other appearances of the shower in the years 2000-2047 based on our numerical model. We note that the details of the 2011 return can, in principle, be used to better constrain the orbit of 3D/Biela prior to the comets first recorded return in 1772 and we address this issue briefly as well.

  19. Tamarac, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    County, Florida. It falls under Florida's 19th congressional district and Florida's 20th congressional district and Florida's 23rd congressional district.12 References ...

  20. Category:Congressional Districts | Open Energy Information

    Open Energy Info (EERE)

    19th congressional district California's 1st congressional district California's 20th congressional district California's 21st congressional district California's 22nd...

  1. Fort Lauderdale, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    County, Florida. It falls under Florida's 19th congressional district and Florida's 20th congressional district and Florida's 22nd congressional district and Florida's 23rd...

  2. STEAB Meeting Agenda March 2009

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    March 17 th - 19 th , 2009 Final Agenda (3-13-09) STEAB Strategic Direction Focus Areas: Energy Efficiency Market Transformation Technology Commercialization Deployment Renewable ...

  3. Department of Energy: Results From The 2012 Federal Employee...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Indices 62 percent positive on Global Satisfaction 65 percent positive on Employee Engagement HCAAF Rankings Out of 37 Agencies 19th on Leadership & Knowledge Management (22nd in ...

  4. Slide 0

    Gasoline and Diesel Fuel Update (EIA)

    - Residential and Commercial Building Technologies - Reference Case Presented to: U.S. Energy Information Administration Prepared by: Navigant Consulting, Inc. 1200 19th Street,...

  5. Slide 0

    Gasoline and Diesel Fuel Update (EIA)

    - Residential and Commercial Building Technologies - Advanced Case Presented to: U.S. Energy Information Administration Prepared by: Navigant Consulting, Inc. 1200 19th Street,...

  6. Plasma and Ion Assistance in Physical Vapor Deposition: AHistorical Perspective

    SciTech Connect (OSTI)

    Anders, Andre

    2007-02-28

    Deposition of films using plasma or plasma-assist can betraced back surprisingly far, namely to the 18th century for arcs and tothe 19th century for sputtering. However, only since the 1960s thecoatings community considered other processes than evaporation for largescale commercial use. Ion Plating was perhaps the first importantprocess, introducing vapor ionization and substrate bias to generate abeam of ions arriving on the surface of the growing film. Ratherindependently, cathodic arc deposition was established as an energeticcondensation process, first in the former Soviet Union in the 1970s, andin the 1980s in the Western Hemisphere. About a dozen various ion-basedcoating technologies evolved in the last decades, all characterized byspecific plasma or ion generation processes. Gridded and gridless ionsources were taken from space propulsion and applied to thin filmdeposition. Modeling and simulation have helped to make plasma and ionseffects to be reasonably well understood. Yet--due to the complex, oftennon-linear and non-equilibrium nature of plasma and surfaceinteractions--there is still a place for the experience plasma"sourcerer."

  7. South Africa and the 21st Century Power Partnership (Fact Sheet). 21st Century Power Partnership; 21st Century Power Partnership

    SciTech Connect (OSTI)

    2015-04-16

    Established in 2012, the 21CPP South Africa Programme is a global initiative that connects South African stakeholders with an international community of expertise. The overall goal of this program is to support South Africa’s power system transformation by accelerating the transition to a reliable, financially robust, and low-carbon power system. 21CPP activities focus on achieving positive outcomes for all participants, especially addressing critical questions and challenges facing system planners, regulators, and operators. In support of this goal, 21CPP taps into deep networks of expertise among leading industry practitioners.

  8. America's Competitiveness Depends on a 21st Century Grid | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Blackouts and brownouts cost our economy tens of billions of dollars a year. We risk ever ... Blackouts and brownouts already cost our economy tens of billions of dollars a year, and ...

  9. Nissan Sustainability Showcase: 21st Century Sustainable Manufacturing

    SciTech Connect (OSTI)

    2010-04-19

    Presentation from the Save Energy Now LEADER Industrial Sustainability and Energy Management Showcase.

  10. Renewable Energy: A Centuries-old Tradition | Department of Energy

    Energy Savers [EERE]

    Release of the National Biofuels Action Plan Release of the National Biofuels Action Plan October 7, 2008 - 4:14pm Addthis Remarks as Prepared for Delivery by Secretary Bodman Thank you, John Mizroch. It's good to be here with Tom Dorr and with Secretary Schafer. Our two departments' collaboration on biofuels development, begun years ago, has only strengthened over time due in large part to your personal attention and leadership. I am pleased to be here with you to unveil the National Biofuels

  11. Particle Substructure. A Common Theme of Discovery in this Century

    DOE R&D Accomplishments [OSTI]

    Panofsky, W. K. H.

    1984-02-01

    Some example of modern developments in particle physics are given which demonstrate that the fundamental rules of quantum mechanics, applied to all forces in nature as they became understood, have retained their validity. The well-established laws of electricity and magnetism, reformulated in terms of quantum mechanics, have exhibited a truly remarkable numerical agreement between theory and experiment over an enormous range of observation. As experimental techniques have grown from the top of a laboratory bench to the large accelerators of today, the basic components of experimentation have changed vastly in scale but only little in basic function. More important, the motivation of those engaged in this type of experimentation has hardly changed at all.

  12. Weatherization Plus — Opportunities for the 21st Century

    Broader source: Energy.gov [DOE]

    Millennium Committee Strategy Report for the DOE Weatherization Assistance Program; 15 pp.; April 1999.

  13. "Sue Martindale","Meeting Coordinator","20201 Century Blvd",...

    Office of Environmental Management (EM)

    Richard Arnold, Executive Director Las Vegas Indian Center Native American ProgramYMSCO 2300 W. Bonanza Road Las Vegas, ... David J. Crose, Director Technical Hazard Division Indiana ...

  14. HYDROGEN COMMERCIALIZATION: TRANSPORTATION FUEL FOR THE 21ST CENTURY

    SciTech Connect (OSTI)

    APOLONIO DEL TORO

    2008-05-27

    Since 1999, SunLine Transit Agency has worked with the U.S. Department of Energy (DOE), U.S. Department of Defense (DOD), and the U.S. Department of Transportation (DOT) to develop and test hydrogen infrastructure, fuel cell buses, a heavy-duty fuel cell truck, a fuel cell neighborhood electric vehicle, fuel cell golf carts and internal combustion engine buses operating on a mixture of hydrogen and compressed natural gas (CNG). SunLine has cultivated a rich history of testing and demonstrating equipment for leading industry manufacturers in a pre-commercial environment. Visitors to SunLine's "Clean Fuels Mall" from around the world have included government delegations and agencies, international journalists and media, industry leaders and experts and environmental and educational groups.

  15. Industrial Wireless Technology for the 21st Century

    SciTech Connect (OSTI)

    none,

    2002-12-01

    In July 2002, the U.S. Department of Energy's Industrial Technologies Program sponsored the Industrial Wireless Workshop as a forum for articulating some long-term goals that may help guide the development of industrial wireless sensor systems. Over 30 individuals, representing manufacturers and suppliers, end users, universities, and national laboratories, attended the workshop in San Francisco and participated in a series of facilitated sessions. The workshop participants cooperatively developed a unified vision for the future and defined specific goals and challenges. This document presents the results of the workshop as well as some context for non-experts.

  16. Century Expansion (4Q07) Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Energy Developer MidAmerican Energy Energy Purchaser MidAmerican Energy Location IA Coordinates 42.495789, -93.652368 Show Map Loading map... "minzoom":false,"mappings...

  17. Century Expansion (08) Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Energy Developer MidAmerican Energy Energy Purchaser MidAmerican Energy Location IA Coordinates 42.504142, -93.656316 Show Map Loading map... "minzoom":false,"mappings...

  18. 21st Century Renewable Fuels, Energy, and Materials

    SciTech Connect (OSTI)

    Berry, K. Joel; Das, Susanta K.

    2012-11-29

    The objectives of this project were multi-fold: (i) conduct fundamental studies to develop a new class of high temperature PEM fuel cell material capable of conducting protons at elevated temperature (180°C), (ii) develop and fabricate a 5k We novel catalytic flat plate steam reforming process for extracting hydrogen from multi-fuels and integrate with high-temperature PEM fuel cell systems, (iii) research and develop improved oxygen permeable membranes for high power density lithium air battery with simple control systems and reduced cost, (iv) research on high energy yield agriculture bio-crop (Miscanthus) suitable for reformate fuel/alternative fuel with minimum impact on human food chain and develop a cost analysis and production model, and (v) develop math and science alternative energy educator program to include bio-energy and power.

  19. National Academy of Sciences Reviews 21st Century Truck Partnership

    Broader source: Energy.gov [DOE]

    By accelerating collaborative research and development among government and industry partners, including the Vehicle Technologies Office, 21CTP aims to enable America’s medium and heavy-duty vehicles to safely and cost-effectively move ever larger volumes of freight and number of passengers while minimizing pollution and the dependency on foreign oil. VTO regularly works with the National Academy of Sciences (NAS) to evaluate program direction, assess technical progress towards meeting the stated goals, and offer suggestions to improve the Partnership.

  20. 21st Century Truck Partnership - Roadmap and Technical White...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... temperature gas pressure forming technology that ... Heat input during plastic deformation generally creates ... and 0.8 of the absolute melting temperature, so no liquid phase is ...

  1. Defining nuclear security in the 21st century

    SciTech Connect (OSTI)

    Doyle, James E

    2009-01-01

    A conference devoted to Reducing the Risks from Radioactive and Nuclear Materials presupposes that such risks exist. Few would disagree, but what are they? While debate on the nature and severity of risks associated with nuclear energy will always remain, it is easy to define a set of risks that are almost universally acknowledged. These include: (1) Nuclear warfare between states; (2) Continued proliferation of nuclear weapons and weapons-grade nuclear materials to states and non-state actors; (3) Terrorists or non-state actor acquisition or use nuclear weapons or nuclear materials; (4) Terrorists or non-state actors attack on a nuclear facility; and (5) Loss or diversion of nuclear weapons or materials by a state to unauthorized uses. These are listed in no particular order of likelihood or potential consequence. They are also very broadly stated, each one could be broken down into a more detailed set of discrete risks or threats. The fact that there is a strong consensus on the existence of these risks is evidence that we remain in an era of nuclear insecurity. This becomes even clearer when we note that most major trends influencing the probability of these risks continue to run in a negative direction.

  2. Understanding Resource Nationalism in the 21st Century

    SciTech Connect (OSTI)

    Hughes, Llewelyn; Kreyling, Sean J.

    2010-07-26

    Resource nationalism in oil-importing states appears on the rise. Oil price volatility underpinned by demand growth has led China, India and others to increase state support for national-flag firms in order to increase the states energy self-sufficiency. Both Chinese and Indian National Oil Companies (NOCs) have made energy investments worldwide, including in Sudan and Iran. Long-standing oil importers such as the United States and Japan have reenergized policies designed to increase domestic production of crude and crude substitutes, or have subsidized national-flag firms, in the name of energy independence.

  3. Cold fusion: The scientific fiasco of the century

    SciTech Connect (OSTI)

    Huizenga, J.R.

    1992-01-01

    A summary of the cold fusion fiasco, its history, claims, experimental questions, are presented in this book. The author gives in some detail good reasons why cold fusion has been disregarded by mainstream science. Disturbing questions about the behavior of scientific investigators and reactions to such events are raised.

  4. Complex Systems: Science for the 21st Century (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States) Univ. of California, Santa Barbara, CA (United States) Massachusetts Inst. of Technology (MIT), Cambridge, MA ...

  5. Public-Private Leadership Forum; 21st Century Power Partnership

    SciTech Connect (OSTI)

    2015-05-14

    The PPLF convenes stakeholders from across the power sector, spanning electricity supply, delivery, and end-use, and plays a key role in guiding the strategic direction of the Power Partnership. In addition, PPLF members support the implementation of activities set out in the Power Partnership Program of Work. Taken together, the activities of the PPLF span the dynamic landscape of power challenges and opportunities, with a focus on business models, ?nancial tools, and regulatory frameworks.

  6. Plant biology research and training for the 21st century

    SciTech Connect (OSTI)

    Kelly, K.

    1992-01-01

    The committee was assembled in response to a request from the National Science Foundation (NSF), the US Department of Agriculture (USDA), and the US Department of Energy (DoE). The leadership of these agencies asked the National Academy of Sciences through the National Research Council (NRC) to assess the status of plant-science research in the United States in light of the opportunities arising from advances inother areas of biology. NRC was asked to suggest ways of accelerating the application of these new biologic concepts and tools to research in plant science with the aim of enhancing the acquisition of new knowledge about plants. The charge to the committee was to examine the following: Organizations, departments, and institutions conducting plant biology research; human resources involved in plant biology research; graduate training programs in plant biology; federal, state, and private sources of support for plant-biology research; the role of industry in conducting and supporting plant-biology research; the international status of US plant-biology research; and the relationship of plant biology to leading-edge research in biology.

  7. Plant biology research and training for the 21st century

    SciTech Connect (OSTI)

    Kelly, K.

    1992-12-31

    The committee was assembled in response to a request from the National Science Foundation (NSF), the US Department of Agriculture (USDA), and the US Department of Energy (DoE). The leadership of these agencies asked the National Academy of Sciences through the National Research Council (NRC) to assess the status of plant-science research in the United States in light of the opportunities arising from advances inother areas of biology. NRC was asked to suggest ways of accelerating the application of these new biologic concepts and tools to research in plant science with the aim of enhancing the acquisition of new knowledge about plants. The charge to the committee was to examine the following: Organizations, departments, and institutions conducting plant biology research; human resources involved in plant biology research; graduate training programs in plant biology; federal, state, and private sources of support for plant-biology research; the role of industry in conducting and supporting plant-biology research; the international status of US plant-biology research; and the relationship of plant biology to leading-edge research in biology.

  8. Nuclear Energy: Policies and Technology for the 21st Century

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) Nuclear Energy Advisory Committee (NEAC) formed two subcommittees to develop a report for the new Administration: a Policy Subcommittee chartered to evaluate U.S....

  9. Water Challenges for the New Century: Meeting Basic Human and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Framing Energy, Water, and Climate Critical Links USDoE Quadrennial Energy Review Task ... in the fields of water and economic and environmental justice and sustainability. Dr. ...

  10. Temperature increase of 21st century mitigation scenarios (Journal...

    Office of Scientific and Technical Information (OSTI)

    Authors: Van Vuuren, Detlef ; Meinshausen, Malte ; Plattner, Gian-Kasper ; Joos, Fortunat ; Strassmann, Kuno M. ; Smith, Steven J. ; Wigley, T. M. ; Raper, S. ; Riahi, Keywan ; De ...

  11. Rare Isotope Beams for the 21st Century

    ScienceCinema (OSTI)

    James Symons

    2010-01-08

    In a scientific keynote address on Friday, June 12 at Michigan State University (MSU) in East Lansing, James Symons, Director of Berkeley Labs Nuclear Science Division (NSD), discussed the exciting research prospects of the new Facility for Rare Isotope Beams (FRIB) to be built at MSUs National Superconducting Cyclotron Laboratory.

  12. 21st Century Locomotive Technology: Quarterly Technical Status Report 28

    SciTech Connect (OSTI)

    Lembit Salasoo; Ramu Chandra

    2010-02-19

    Thermal testing of a subscale locomotive sodium battery module was initiated.to validate thermal models. The hybrid trip optimizer problem was formulated. As outcomes of this project, GE has proceeded to commercialize trip optimizer technology, and has initiated work on a state-of-the-art battery manufacturing plant for high energy density, sodium-based batteries.

  13. 21st Century Locomotive Technology: Quarterly Technical Status Report 7

    SciTech Connect (OSTI)

    Lembit Salasoo; Jennifer Topinka; Anthony H Furman; Paul K Houpt

    2004-11-03

    Experimental and analytical work has continued on advanced fuel injection. Experimental trends continue to agree with modeling predictions. Based on rub tests, polymeric abradable coating compositions were downselected and evaluated in the turbocharger, to give encouraging performance gains. The detailed hybrid battery duty cycle was studied and battery life testing procedure required adjustments. Optimizer algorithm robustness has been improved, and a real-time optimizer simulation system was constructed and demonstrated at a railroad suppliers trade meeting.

  14. 21st Century Locomotive Technology Quarterly Technical Status Report 4

    SciTech Connect (OSTI)

    Lembit Salasoo; Paul Houpt; Jennifer Topinka

    2004-03-09

    Common rail injection facility has been commissioned. The advanced fuel injection model has been calibrated and studies of fuel consumption and emission subject to design/mechanical constraints have been initiated. Motoring mode of the assisted turbocharger has been studied and performance against the design goals assessed. Preliminary hybrid energy storage system studies were received, and lab testing to support energy management algorithms was performed. A successful field test of optimizing Consist Manager was performed.

  15. 21st Century Truck Partnership Roadmap Roadmap and Technical...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... The Partnership's focus has not wavered from this vision throughout its history. I.2. ... sector, and to work effectively toward a conclusion that can be returned to the ...

  16. Tackling a Key 21st Century Evaluation Challenge

    Broader source: Energy.gov [DOE]

    Scheduled for November 4-6, 2014 in Washington D.C., this 2nd International Conference will tackle the difficulties linked to the evaluation of climate change and development, described by many as...

  17. State Energy Program Strategic Plan for the 21st Century

    Broader source: Energy.gov [DOE]

    Representatives of DOE and the States initiated development of this Strategic Plan to clearly define the program's goals for the next 10 years.

  18. Clean, Efficient, and Reliable Power for the 21st Century

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    approach; that's why the U.S. Department of Energy (DOE) is developing a portfolio of clean energy technologies to capture the sun, harness the wind, and utilize earth's natural ...

  19. Distinguishing Aerosol Impacts on Climate Over the Past Century

    SciTech Connect (OSTI)

    Koch, Dorothy; Menon, Surabi; Del Genio, Anthony; Ruedy, Reto; Alienov, Igor; Schmidt, Gavin A.

    2008-08-22

    Aerosol direct (DE), indirect (IE), and black carbon-snow albedo (BAE) effects on climate between 1890 and 1995 are compared using equilibrium aerosol-climate simulations in the Goddard Institute for Space Studies General Circulation Model coupled to a mixed layer ocean. Pairs of control(1890)-perturbation(1995) with successive aerosol effects allow isolation of each effect. The experiments are conducted both with and without concurrent changes in greenhouse gases (GHG's). A new scheme allowing dependence of snow albedo on black carbon snow concentration is introduced. The fixed GHG experiments global surface air temperature (SAT) changed -0.2, -1.0 and +0.2 C from the DE, IE, and BAE. Ice and snow cover increased 1.0% from the IE and decreased 0.3% from the BAE. These changes were a factor of 4 larger in the Arctic. Global cloud cover increased by 0.5% from the IE. Net aerosol cooling effects are about half as large as the GHG warming, and their combined climate effects are smaller than the sum of their individual effects. Increasing GHG's did not affect the IE impact on cloud cover, however they decreased aerosol effects on SAT by 20% and on snow/ice cover by 50%; they also obscure the BAE on snow/ice cover. Arctic snow, ice, cloud, and shortwave forcing changes occur mostly during summer-fall, but SAT, sea level pressure, and long-wave forcing changes occur during winter. An explanation is that aerosols impact the cryosphere during the warm-season but the associated SAT effect is delayed until winter.

  20. Advanced Wind Technology: New Challenges for a New Century

    SciTech Connect (OSTI)

    Thresher, R.; Laxson, A.

    2006-06-01

    This paper describes the growth, advances, and challenges faced by the wind energy industry in 2006.

  1. Vehicle Technologies Office: 21st Century Truck Partnership ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... losses, auxiliary loads) Idle Reduction (reduce overnight and work-day idling) Safety (crash avoidance, intelligent transportation systems) Operational Efficiency (vehicle duty ...

  2. Downtown district cooling: A 21st century approach

    SciTech Connect (OSTI)

    1995-12-01

    On December 1, 1992, the Board of Directors of the Metropolitan Pier and Exposition Authority (MPEA) met on Chicago`s historic Navy Pier and ushered in a new era of competition for energy supply in Chicago. The MPEA, a state agency created for the purposes of promoting and operating fair and exposition facilities within the Chicago area (including the McCormick Place exposition center and Navy Pier), voted to accept a third-party proposal to provide district heating and cooling services to the existing McCormick Place facilities and a million square feet of new exposition space. The winning bidder was a joint venture between Trigen Energy, the nation`s largest provider of district energy services, and Peoples Gas, the gas distribution company which serves Chicago. This vote culminated two years of effort by the Energy Division of Chicago`s Department of Environment to analyze the feasibility and promote the implementation of a district energy system to serve the expanded McCormick Place and its environs in the South Loop neighborhood. Initial services began in November, 1993, with a new hot and cold water piping system interconnecting the three existing exhibition facilities. The final buildout of the system, with a combined peak demand predicted at 160 MMBtu of heating and 15,920 tons of and cooling, is scheduled for completion in the summer of 1997.

  3. Late Cenozoic volcanism, geochronology, and structure of the...

    Open Energy Info (EERE)

    rocks that were erupted during two periods, as defined by K-Ar dating: (1) 4.0--2.5 m.y., approx.31 km3 of basalt, rhyodacite, dacite, andesite, and rhyolite, in descending...

  4. Silica diagenesis in Santa Cruz mudstone, Late Miocene, California

    SciTech Connect (OSTI)

    El-Sabbagh, D.

    1987-05-01

    The silica-rich upper Miocene Santa Cruz Mudstone is similar to the Miocene Monterey Formation. Previous studies have suggested the Santa Cruz Mudstone was not buried deeply nor had it undergone extensive diagenesis. Because opaline diagenesis is temperature dependent, the author examined the silica diagenesis of the Santa Cruz Mudstone using scanning electron microscopy and x-ray diffraction methods to study its burial history. In a series of samples from Santa Cruz to Davenport, California (over 16 km), opal-CT is the dominant silica phase present and clay minerals are notably absent. The d(101)-spacing values of opal-CT range from 4.11 A (Santa Cruz area) to 4.06 A (north of Santa Cruz), exhibiting the complete range of d(101)-spacing values found in opal-CT zones. Scanning electron micrographs of crystalline microtextures show rosettes of opal-CT (lepispheres) in cavities of samples with medium to high d(101)-spacing values. The morphology of lepisphere crystallites grades from bladed to spiny with decreasing d(101)-spacing values, reflecting an internal crystal ordering with increased diagenesis. Further diagenetic changes occurred in a sample with 4.06 A d(101)-spacing where incipient quartz crystals signal the initial conversion of opal-CT to microcrystalline quartz. Silica diagenesis demonstrates that burial temperatures surpassed the range of opal-A to opal-CT conversion and approached conversion temperatures (55/sup 0/C to 110/sup 0/C) of opal-CT to microcrystalline quartz. The conversion occurred when the Santa Cruz Mudstone was buried over 1900 m (depth calculated from a geohistory diagram). This burial temperature brings the Santa Cruz Mudstone within the oil generation window, and could account for the presence of hydrocarbons in the unit.

  5. Have You Looked at Your Pipes Lately? | Department of Energy

    Energy Savers [EERE]

    Have You Heard? America is #1 Again. Have You Heard? America is #1 Again. April 19, 2012 - 6:13pm Addthis Over the past four years, the United States has reclaimed the title as the world’s leading investor in clean energy technologies and we are on track to double renewable energy generation. Join Secretary Chu for a live chat on the benefits of transitioning to a clean energy economy Friday, April 20, 2012 at 10:45 am ET at <a

  6. Late Cretaceous extension in the hinterland of the Sevier thrust...

    Open Energy Info (EERE)

    Sevier thrust belt, northwestern Utah and southern Idaho Abstract Cover rocks of the Raft River metamorphic core complex, located in the Sevier belt hinterland, preserve a...

  7. Observational constraints on late-time {lambda}(t) cosmology

    SciTech Connect (OSTI)

    Carneiro, S.; Pigozzo, C.; Dantas, M. A.; Alcaniz, J. S.

    2008-04-15

    The cosmological constant {lambda}, i.e., the energy density stored in the true vacuum state of all existing fields in the Universe, is the simplest and the most natural possibility to describe the current cosmic acceleration. However, despite its observational successes, such a possibility exacerbates the well-known {lambda} problem, requiring a natural explanation for its small, but nonzero, value. In this paper we study cosmological consequences of a scenario driven by a varying cosmological term, in which the vacuum energy density decays linearly with the Hubble parameter, {lambda}{proportional_to}H. We test the viability of this scenario and study a possible way to distinguish it from the current standard cosmological model by using recent observations of type Ia supernova (Supernova Legacy Survey Collaboration), measurements of the baryonic acoustic oscillation from the Sloan Digital Sky Survey, and the position of the first peak of the cosmic microwave background angular spectrum from the three-year Wilkinson Microwave Anisotropy Probe.

  8. Transition duct with late injection in turbine system

    SciTech Connect (OSTI)

    LeBegue, Jeffrey Scott; Pentecost, Ronnie Ray; Flanagan, James Scott; Kim, Won -Wook; McMahan, Kevin Weston

    2015-09-15

    A system for supplying an injection fluid to a combustor is disclosed. The system includes a transition duct comprising an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The passage defines a combustion chamber. The system further includes a tube providing fluid communication for the injection fluid to flow through the transition duct and into the combustion chamber.

  9. Galileon gravity and its relevance to late time cosmic acceleration

    SciTech Connect (OSTI)

    Gannouji, Radouane; Sami, M.

    2010-07-15

    We consider the covariant Galileon gravity taking into account the third order and fourth order scalar field Lagrangians L{sub 3}({pi}) and L{sub 4}({pi}), consisting of three and four {pi}'s with four and five derivatives acting on them, respectively. The background dynamical equations are set up for the system under consideration and the stability of the self-accelerating solution is demonstrated in a general setting. We extended this study to the general case of the fifth order theory. For the spherically symmetric static background, we spell out conditions for the suppression of fifth force effects mediated by the Galileon field {pi}. We study field perturbations in the fixed background and investigate the conditions for their causal propagation. We also briefly discuss metric fluctuations and derive an evolution equation for matter perturbations in Galileon gravity.

  10. Early Proctoscopy is a Surrogate Endpoint of Late Rectal Toxicity...

    Office of Scientific and Technical Information (OSTI)

    >2 (32% vs. 15 %, p 0.02) or grade >3 VRS telangiectasia (47% vs. 17%, p < 0.01) and an overall VRS score of >2 (31% vs. 16 %, p 0.04) or >3 (48% vs. 17%, p ...

  11. Millennial-scale ocean acidification and late Quaternary

    SciTech Connect (OSTI)

    Riding, Dr Robert E; Liang, Liyuan; Braga, Dr Juan Carlos

    2014-01-01

    Ocean acidification by atmospheric carbon dioxide has increased almost continuously since the last glacial maximum (LGM), 21 000 years ago. It is expected to impair tropical reef development, but effects on reefs at the present day and in the recent past have proved difficult to evaluate. We present evidence that acidification has already significantly reduced the formation of calcified bacterial crusts in tropical reefs. Unlike major reef builders such as coralline algae and corals that more closely control their calcification, bacterial calcification is very sensitive to ambient changes in carbonate chemistry. Bacterial crusts in reef cavities have declined in thickness over the past 14 000 years with largest reduction occurring 12 000 10 000 years ago. We interpret this as an early effect of deglacial ocean acidification on reef calcification and infer that similar crusts were likely to have been thicker when seawater carbonate saturation was increased during earlier glacial intervals, and thinner during interglacials. These changes in crust thickness could have substantially affected reef development over glacial cycles, as rigid crusts significantly strengthen framework and their reduction would have increased the susceptibility of reefs to biological and physical erosion. Bacterial crust decline reveals previously unrecognized millennial-scale acidification effects on tropical reefs. This directs attention to the role of crusts in reef formation and the ability of bioinduced calcification to reflect changes in seawater chemistry. It also provides a long-term context for assessing anticipated anthropogenic effects.

  12. Aerial photographic interpretation of lineaments and faults in late cenozoic deposits in the Eastern part of the Benton Range 1:100,000 quadrangle and the Goldfield, Last Chance Range, Beatty, and Death Valley Junction 1:100,000 quadrangles, Nevada and California

    SciTech Connect (OSTI)

    Reheis, M.C.; Noller, J.S.

    1991-09-01

    Lineaments and faults in Quaternary and late Tertiary deposits in the southern part of the Walker Lane are potentially active and form patterns that are anomalous with respect to the typical fault patterns in most of the Great Basin. Little work has been done to identify and characterize these faults, with the exception of those in the Death Valley-Furnace Creek (DVFCFZ) fault system and those in and near the Nevada Test Site. Four maps at a scale of 1:100,000 summarize the existing knowledge about these lineaments and faults based on extensive aerial-photo interpretation, limited field investigations, and published geologic maps. The lineaments and faults in all four maps can be divided geographically into two groups. The first group includes west- to north-trending lineaments and faults associated with the DVFCFZ and with the Pahrump fault zone in the Death Valley Junction quadrangle. The second group consists of north- to east-northeast-trending lineaments and faults in a broad area that lies east of the DVFCFZ and north of the Pahrump fault zone. Preliminary observations of the orientations and sense of slip of the lineaments and faults suggest that the least principle stress direction is west-east in the area of the first group and northwest-southeast in the area of the second group. The DVFCFZ appears to be part of a regional right-lateral strike-slip system. The DVFCFZ steps right, accompanied by normal faulting in an extensional zone, to the northern part of the Walker Lane a the northern end of Fish Lake Valley (Goldfield quadrangle), and appears to step left, accompanied by faulting and folding in a compressional zone, to the Pahrump fault zone in the area of Ash Meadows (Death Valley Junction quadrangle). 25 refs.

  13. On the possibility of an experiment on 'nonlocality' of electrodynamics

    SciTech Connect (OSTI)

    Khrapko, Radii I

    2012-12-31

    It has been known since the 19th century that a circularly polarised electromagnetic wave carries an angular momentum. A simple experiment (Righi, 1882) apparently indicates that the angular momentum is distributed over the entire cross section of the beam. According to some modern ideas, the angular momentum of the beam with the given polarisation is localised near the beam 'surface' and represents a spin of photons, while the energy in the beam is distributed throughout its cross section, which is inconsistent with the principle of locality. For the experimental determination of the localisation of the angular momentum, we propose a new scheme, in which we study the interference pattern of two coherent circularly polarised beams. Each beam first passes through a half-wave plate, one of the plates being divided into two coaxial parts. With (manual) rotation of one parts of the plate we change the frequency of the light passing through it: the plate absorbs the momentum and, therefore, work is done. This change in frequency should cause a movement of the interference fringes and show the distribution of the angular momentum over the beam cross section. (light polarisation)

  14. An evaluation of worker lead exposures and cleaning effectiveness during removal of deteriorated lead-based paint

    SciTech Connect (OSTI)

    Sussell, A.; Wild, D.; Ashley, K.; Hart, C.

    1999-03-01

    The authors evaluated worker lead exposures and cleaning effectiveness during initial cleanup of 19th-century buildings with highly deteriorated lead-based paint. Eighteen rooms of similar size and condition in two university-owned buildings were selected for a pilot project to compare three methods for removing loose paint, paint chips, and dust. The methods used were: dry scraping followed by dry sweeping (no engineering or work practice controls); wet scraping and high-efficiency particulate air (HEPA) vacuuming; and the latter method with the addition of a portable HEPA-filtered exhaust fan in the room providing about 40 air changes per hour. The final step for all methods was wet-mopping once with tri-sodium phosphate solution. During a single day 18 rooms were cleaned; each of three two-person work crews cleaned six room, two with each method. Air and surface samples were collected before, during, and after cleaning. All of the methods were potentially hazardous to workers: 44% of the method-based exposures and one of five full-shift exposures exceeded the OSHA PEL.

  15. OSTI, US Dept of Energy, Office of Scientific and Technical Information |

    Office of Scientific and Technical Information (OSTI)

    Speeding access to science information from DOE and Beyond Surviving a Technological Transformation by Dr. Walt Warnick on Tue, Sep 2, 2008 The life of every person in the world today has been shaped by successive technological transformations. The printing press transformed communication and education, beginning in the mid 15th century. Sailing and navigation technology of the late 15th century allowed Europeans to learn about other continents, beginning the global network of trade. Metal

  16. Fact Sheet: Bioenergy Working Group | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bioenergy Working Group Fact Sheet: Bioenergy Working Group A fact sheet detailling the group launched at the Clean Energy Ministerial in Washington, D.C. on July 19th and 20th, ...

  17. SSRL 32nd Users' Meeting Oct 17 - 19, 2005

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tues. Oct. 18th 3-5 pm, Wed. Oct. 19th 8am-5pm Soft X-Ray Science at LCLS Chairs: Jan Lning, Anders Nilsson, Jo Sthr Admin Contact: Michelle Montalvo Location: SLAC ROB Bldg....

  18. Bonneauville, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    article is a stub. You can help OpenEI by expanding it. Bonneauville is a borough in Adams County, Pennsylvania. It falls under Pennsylvania's 19th congressional district.12...

  19. Carroll Valley, Pennsylvania: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    article is a stub. You can help OpenEI by expanding it. Carroll Valley is a borough in Adams County, Pennsylvania. It falls under Pennsylvania's 19th congressional district.12...

  20. Bendersville, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    article is a stub. You can help OpenEI by expanding it. Bendersville is a borough in Adams County, Pennsylvania. It falls under Pennsylvania's 19th congressional district.12...

  1. Biglerville, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    article is a stub. You can help OpenEI by expanding it. Biglerville is a borough in Adams County, Pennsylvania. It falls under Pennsylvania's 19th congressional district.12...

  2. East Berlin, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    article is a stub. You can help OpenEI by expanding it. East Berlin is a borough in Adams County, Pennsylvania. It falls under Pennsylvania's 19th congressional district.12...

  3. SRBAVG: Its Time to Archive CERES Next-Generation Monthly Means

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Patrick Minnis, W. L. Smith, Jr., D. R. Doelling NASA Langley Research Center, Hampton, VA ... ARM 19 th Annual Science Team Meeting Louisville, KY 30 March - 2 April 2009 NASA Langley ...

  4. Power Prepay Next Steps:

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    on BPA's Power Prepay Program is needed, please e-mail powerprepays@bpa.gov by July 19 th . * The open comment period will last for 15 days, beginning on June 28 th and...

  5. Abilene, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    is a stub. You can help OpenEI by expanding it. Abilene is a city in Jones County and Taylor County, Texas. It falls under Texas's 13th congressional district and Texas's 19th...

  6. West Palm Beach, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. West Palm Beach is a city in Palm Beach County, Florida. It falls under Florida's 19th...

  7. Triple E Seminar

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dates: Thursday, November 19 and Friday, November 20 Location: 922 Conference Center Food Set-up - 922B Thursday, November 19th 7:45 am - registration and continental breakfast...

  8. CoverSheet

    Office of Scientific and Technical Information (OSTI)

    conditions for coupling ice sheet models to earth system models Author(s): Perego, Mauro Price, Stephen F. Dr Stadler, Georg Intended for: 19th Annual Community Earth System Model...

  9. BPA-2015-00396-FOIA

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2014. Submitted values are: L' V --Contact information-- NameHowe.Wang) Organization: Navigant Economics Address: NW 1200 19th Street NW Suite 850 Washington,D.0 Fax number: Phone...

  10. Supercomputing Challenge Expo at Los Alamos National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    showcase research at 19th Supercomputing Challenge Expo at Los Alamos National Laboratory April 14, 2009 LOS ALAMOS, New Mexico, April 14, 2009-More than 250 New Mexico middle- and high-school students and their teachers are at the Laboratory Monday and Tuesday, April 20-21, for judging and the awards ceremony in the 19th annual New Mexico Supercomputing Challenge. Sixty-one teams are participating in the challenge, said David Kratzer of the Laboratory's High Performance Computing Systems Group,

  11. Metallurgical characterization of brass objects from the Akko 1 shipwreck, Israel

    SciTech Connect (OSTI)

    Ashkenazi, D.; Cvikel, D.; Stern, A.; Klein, S.; Kahanov, Y.

    2014-06-01

    The Akko 1 shipwreck was a small Egyptian armed vessel or auxiliary naval brig built in the eastern Mediterranean at the beginning of the 19th century. During the underwater excavations, about 230 brass hook-and-eye closures were found, mainly in the bow area. In addition, 158 brass cases were found, mainly between midships and the aft extremity of the shipwreck. Metallurgical non-destructive and destructive characterizations of selected items were performed, including radiographic testing, XRF, lead isotope analysis, optical microscopy, SEM–EDS and microhardness tests. The hook-and-eye closures and the cases were both found to be made of binary copper–zinc alloy (about 30 wt.% zinc). While the brass cases were made from rolled sheets, hand-made using simple tools, and joined by tin–lead soldering material, the brass hook-and-eye closures were hand-made from drawn brass wire, and manufactured from commercial drawn brass bars by a cold-working process. The lead isotope analyses suggest different provenances of the raw materials used for making the brass objects, thus the different origins of the ores may hint that the brass wire and sheet were imported to the workshops in which the objects were manufactured. - Highlights: • Brass cases and hook-and-eye closures were retrieved from the Akko 1 shipwreck. • Both types of objects were made of binary copper–zinc alloy (about 30 wt.% zinc). • The cases were hand-made from rolled sheets and joined by tin–lead soldering. • Hook-and-eye closures were made from drawn brass wire manufactured by cold-working. • Lead isotope analyses suggest that the origins of the raw material were diverse.

  12. Environmental remediation 1991: ``Cleaning up the environment for the 21st Century``. Proceedings

    SciTech Connect (OSTI)

    Wood, D.E.

    1991-12-31

    This report presents discussions given at a conference on environmental remediation, September 8--11, Pasco, Washington. Topics include: public confidence; education; in-situ remediation; Hanford tank operations; risk assessments; field experiences; standards; site characterization and monitoring; technology discussions; regulatory issues; compliance; and the UMTRA project. Individual projects are processed separately for the data bases.

  13. Linking environmental justice and sustainable development for the 21st century

    SciTech Connect (OSTI)

    Goldman, B.A.

    1995-12-01

    This presentation proposes proposes that environmental justice and sustainable development represent the most significant challenges facing environmental professionals during the next 20 years. It will explore the linkages and tensions between these two emerging fields of research and application, as well as their implications for the environmental professions. Questions addressed will include: (1) What is the conceptual link between these ideas? (2) If cost-benefit analysis, taking, and unfunded mandates are the Republican Congress`s top environmental priorities, what do these issues mean from the perspectives of environmental justice and sustainability? (3) What do the justice and sustainability perspectives imply for the future direction of environmental research and advocacy?

  14. Environmental ethics and professional practice: A case study of an environmental challenge for century 2000

    SciTech Connect (OSTI)

    Malone, C.

    1995-12-01

    Objective resolution of environmental issues involves questions of facts and values, and, for environmental issues to be resolved ethically, a proper synthesis of environmental facts with questions of ethics must occur. In this case study, the proposal by the U.S. Department of Energy (DOE) to use the Yucca Mountain site in southwest Nevada as a deep geologic repository for the permanent disposal of the nation`s high-level nuclear waste is examined in part in the context of the {open_quotes}Code of Ethics and Standards of Practice for Environmental Professionals{close_quotes} adopted by the National Association of Environmental Professionals (NAEP). Current plans are that a repository at the Yucca Mountain site would begin functioning in 2010 and would be sealed after about 150 years. The requirement that a geologic repository must isolate nuclear waste from the environment for at least 10,000 years poses unique challenges to environmental professionals. This case study also analyzes the challenges in terms of the implications of a new federal Executive Order on Ecosystem Management and corresponding internal orders within all federal agencies to conform to the Executive Order. The imposition of the principles and practices of ecosystem-based resource management on federal agencies provides an opportunity to also address, in the context of the DOE Yucca Mountain Project, (1) the ecosystem approach to environmental management, (2) concepts of holistic resource management planning, and (3) the concepts of sustainability and biodiversity. Within this framework there are important implications for environmental ethics and professional practice that must remain at the forefront of concerns of the NAEP over the next two decades.

  15. Vehicle Technologies Office: 21st Century Truck Technical Goals and Teams

    Office of Energy Efficiency and Renewable Energy (EERE)

    Fuel efficiency in heavy trucks depends on a number of factors associated with the truck and its components. The top figure shows the power use inventory for a basic Class 8 tractor-trailer combination, listing its balance of fuel input, engine output, and tractive power (losses from aerodynamics, rolling resistance, and inertia). The power use inventory in this diagram highlights areas in which research efforts can lead to major benefits in truck fuel efficiency, including engine efficiency, aerodynamics, and rolling resistance.

  16. Progress on Our 21st Century Grid: Powering Our Country and Our Economy

    Broader source: Energy.gov [DOE]

    Since the start of the new year, I have spoken at more than a dozen events about ways in which investment in the electric power grid is delivering significant benefits to consumers, businesses, and communities across the nation.

  17. Fermilab Industrial Affiliates roundtable on research technology in the twenty-first century

    SciTech Connect (OSTI)

    Carrigan, R.A. Jr.; Fenner, R.B.

    1987-05-01

    This collection of articles presents views on the future of physics research by leading experts in the field. Topics discussed include particle physics, the Superconducting Super Collider, and the development of new superconducting materials. The articles have been abstracted and indexed separately.

  18. Packaging Materials of the 21st Century: "Sustainable Nano-Materials...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ecology Renewable energy Green Nanotechnology Waves of Innovation Source: Natural ... ecology Renewable energy Green Nanotechnology Waves of Innovation Source: Natural ...

  19. Roadmap and Technical White Papers for 21st Century Truck Partnership

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... are roughly 2.2 million trucks, each traveling an average of 65,000 milesyear and ... of the vehicle occupants. Additional benefits in fuel efficiency can be achieved ...

  20. Federal Agencies: Setting an Example with Energy Savings for the 21st Century

    SciTech Connect (OSTI)

    Not Available

    2001-06-01

    The Office of Energy and Renewable Energy Sector Fact Sheets describe the mission and programs within each of the 8 Sectors.

  1. Creating the Clean Energy Jobs of the 21st Century | Department...

    Energy Savers [EERE]

    More Documents & Publications Nevada Recovery Act State Memo Expansion of Domestic Production of Lithium Carbonate and Lithium Hydroxide to Supply US Battery Industry EA-1715: ...

  2. Clean engineered steels -- Progress at the end of the twentieth century

    SciTech Connect (OSTI)

    Eckel, J.A.; Glaws, P.C.; Wolfe, J.O.; Zorc, B.J.

    1999-07-01

    The Timken Company, a manufacturer of alloy steel and bearings, has developed a 15 MHz ultrasonic inspection method that correlates steel cleanness to bearing fatigue performance. It is used to qualify worldwide bearing steel suppliers for cleanness requirements, to monitor their compliance and qualify process changes. This method has permitted the appropriate steel cleanness to be selected for bearing applications. Through Continuous Improvement (CI) methodology, steelmaking productivity advancements have occurred along with advancement in steel cleanness. These efforts have led to 4 orders of magnitude steel cleanness improvement, and nearly 20 times bearing performance improvement over the past 15 years.

  3. Laboratories for the 21st Century: Case Studies, Molecular Foundry, Berkeley, California

    SciTech Connect (OSTI)

    Not Available

    2010-11-01

    This case study provides information on the Molecular Foundry, which incorporates Labs21 principles in its design and construction. The design includes many of the strategies researched at Lawrence Berkeley Laboratory for energy efficient cleanroom and data centers.

  4. BTS: SEP Strategic Plan for the 21st Century Implementation Plan

    Broader source: Energy.gov [DOE]

    The Strategic Plan established three Key Goals that provide a clear focus and conceptual framework for SEP program activities over the next ten years.

  5. Bridging the Cold War and the 21st century: chronicling the history of Sandia National Laboratories

    SciTech Connect (OSTI)

    Mora, C.J.

    1997-04-01

    A historical perspective is given for Sandia National Laboratories from its beginnings as a small engineering group at an offshoot of Los Alamos Laboratory to a facility of 7000 people at its main facility in Albuquerque, another 1000 people in Livermore, California and test ranges in Tonopah, Nevada and Kauai, Hawaii. The Sandia army base became the Z division of Los Alamos and $25 million construction program began the structures that would carry out a test program for nuclear weapons during the cold war. Bell System/AT&T stewardship of the site continued from 1949 to 1993, when Martin Marietta (now Lockheed Martin) was chosen as the new contractor. Management decisions, personnel, and political aspects of the Laboratory are presented up to 1997 and forecasts are given for future policy and programs of Sandia.

  6. Secretary of Energy Bodman Remarks for 21st Century Truck Event...

    Broader source: Energy.gov (indexed) [DOE]

    on petroleum for its energy, with about one-quarter consumed by heavy-duty vehicles. ... Without significant technology development, our Department is forecasting that heavy truck ...

  7. Clean, Efficient, and Reliable Power for the 21st Century (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-06-01

    This fact sheet provides an overview of the U.S. Department of Energy's Fuel Cell Technologies Program.

  8. Proceedings: Twenty years of energy policy: Looking toward the twenty-first century

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    In 1973, immediately following the Arab Oil Embargo, the Energy Resources Center, University of Illinois at Chicago initiated an innovative annual public service program called the Illinois Energy Conference. The objective was to provide a public forum each year to address an energy or environmental issue critical to the state, region and nation. Twenty years have passed since that inaugural program, and during that period we have covered a broad spectrum of issues including energy conservation nuclear power, Illinois coal, energy policy options, natural gas, alternative fuels, new energy technologies, utility deregulation and the National Energy Strategy.

  9. Smart Grid Week: How the Transition to 21st Century Grid Impacts...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Erin R. Pierce Erin R. Pierce Former Digital Communications Specialist, Office of Public Affairs SMART GRID BASICS Video 101 on the smart grid and how it impacts you. Energy Saver ...

  10. Power Marketing Administrations Leading the Nation’s Transition to a 21st Century Electric Grid

    Broader source: Energy.gov [DOE]

    A team of experts from DOE and Western Area Power Administration is working to identify opportunities and develop strategies that will ensure the viability, sustainability and resiliency of our nation's power grid.

  11. Power Systems of the Future: A 21st Century Power Partnership...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Laboratory Sonia Aggarwal Energy Innovation: Policy and Technology LLC Minnesh Bipath ... imports of coal, oil, and natural gas are raising energy security concerns, ...

  12. Power Systems of the Future: A 21st Century Power Partnership Thought Leadership Report

    SciTech Connect (OSTI)

    Zinaman, O.; Miller, M.; Adil, A.; Arent, D.; Cochran, J.; Vora, R.; Aggarwal, S.; Bipath, M.; Linvill, C.; David, A.; Kauffman, R.; Futch, M.; Villanueva Arcos, E.; Valenzuela, J. M.; Martinot, E.; Bazilian, M.; Pillai, R. K.

    2015-02-01

    This report summarizes key forces driving transformation in the power sector around the world, presents a framework for evaluating decisions regarding extent and pace of change, and defines pathways for transformation. Powerful trends in technology, policy environments, financing, and business models are driving change in power sectors globally. In light of these trends, the question is no longer whether power systems will be transformed, but rather how these transformations will occur. Three approaches to policy and technology decision-making can guide these transformations: adaptive, reconstructive, and evolutionary. Within these approaches, we explore the five pathways that have emerged as viable models for power system transformation.

  13. Onsite Distributed Generation Systems For Laboratories, Laboratories for the 21st Century: Best Practices (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-09-01

    This guide provides general information on implementing onsite distributed generation systems in laboratory environments. Specific technology applications, general performance information, and cost data are provided to educate and encourage laboratory energy managers to consider onsite power generation or combined heat and power (CHP) systems for their facilities. After conducting an initial screening, energy managers are encouraged to conduct a detailed feasibility study with actual cost and performance data for technologies that look promising. Onsite distributed generation systems are small, modular, decentralized, grid-connected, or off-grid energy systems. These systems are located at or near the place where the energy is used. These systems are also known as distributed energy or distributed power systems. DG technologies are generally considered those that produce less than 20 megawatts (MW) of power. A number of technologies can be applied as effective onsite DG systems, including: (1) Diesel, natural gas, and dual-fuel reciprocating engines; (2) Combustion turbines and steam turbines; (3) Fuel cells; (4) Biomass heating; (5) Biomass combined heat and power; (6) Photovoltaics; and (7) Wind turbines. These systems can provide a number of potential benefits to an individual laboratory facility or campus, including: (1) High-quality, reliable, and potentially dispatchable power; (2) Low-cost energy and long-term utility cost assurance, especially where electricity and/or fuel costs are high; (3) Significantly reduced greenhouse gas (GHG) emissions. Typical CHP plants reduce onsite GHG by 40 to 60 percent; (4) Peak demand shaving where demand costs are high; (5) CHP where thermal energy can be used in addition to electricity; (6) The ability to meet standby power needs, especially where utility-supplied power is interrupted frequently or for long periods and where standby power is required for safety or emergencies; and (7) Use for standalone or off-grid systems where extending the grid is too expensive or impractical. Because they are installed close to the load, DG systems avoid some of the disadvantages of large, central power plants, such as transmission and distribution losses over long electric lines.

  14. CESM Century-Scale Climate Experiments with a High-Resolution...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    at the National Center for Atmospheric Research (NCAR) will carry out various sets of climate change simulations using the latest release of the Community Earth System Model...

  15. Changes Sweeping Through the Electricity Sector: Moving toward a 21st Century Electricity System

    Broader source: Energy.gov [DOE]

    Advanced Energy Economy Institute (AEEI) is engaging executives of utility companies, advanced energy companies, and regulators in discussions to identify new business and regulatory models that...

  16. Status Report on Power System Transformation: A 21st Century Power Partnership Report

    SciTech Connect (OSTI)

    Miller, Mackay; Martinot, Eric; Cox, Sadie; Speer, Bethany; Zinaman, Owen; Booth, Sam; Zissler, Romain; Cochran, Jaquelin; Soonee, S. K.; Audinet, Pierre; Munuera, Luis; Arent, Doug

    2015-05-27

    This report has three primary goals: (1) to articulate the concept of power system transformation; (2) to explore the current global landscape of ‘innovations’ that constitute power system transformation and provide evidence of how these innovations are emerging; and (3) to suggest an analytical framework for assessing the status of power system transformation on an on-going basis.

  17. Basic science and its relationship to environmental restoration: Preparing for the 21. century. Summary report

    SciTech Connect (OSTI)

    1995-12-31

    The Department of Energy (DOE) funded the two day meeting in order to focus on ways to organize and mobilize the scientific community to effectively address the maze of global environmental problems. Using the Office of Energy Research (ER) as a Test Case, the participants were asked to address such questions as: What are the problems ER can effectively address? Is there a hierarchy of issues involved in attacking those problems? Are there new multi-disciplinary constructs that should be encouraged in the university environment, much like the applied science departments that developed at many institutions in the 1970`s and 1980`s; and/or in the national laboratories? What does it take to get the best minds in the university and national laboratory environments actively engaged in investigations of fundamental environmental problems? If such a beginning can be made, how should its significance be communicated to other agencies?

  18. Laboratories for the 21st Century Best Practices: Energy Recovery in Laboratory Facilities

    SciTech Connect (OSTI)

    2012-06-01

    Laboratories typically require 100% outside air for ventilation at higher rates than other commercial buildings. Minimum ventilation is typically provided at air change per hour (ACH) rates in accordance with codes and adopted design standards including Occupational Safety and Health Administration (OSHA) Standard 1910.1450 (4 to 12 ACH non-mandatory) or the 2011 American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) Applications Handbook, Chapter 16 Laboratories (6 to 12 ACH). While OSHA states this minimum ventilation rate should not be relied on for protection from toxic substances released into the laboratory it specifically indicates that it is intended to provide a source of air for breathing and for input to local ventilation devices (e.g., chemical fume hoods or exhausted bio-safety cabinets), to ensure that laboratory air is continually replaced preventing the increase of air concentrations of toxic substances during the working day, direct air flow into the laboratory from non-laboratory areas and out to the exterior of the building. The heating and cooling energy needed to condition and move this outside air can be 5 to 10 times greater than the amount of energy used in most office buildings. In addition, when the required ventilation rate exceeds the airflow needed to meet the cooling load in low-load laboratories, additional heating energy may be expended to reheat dehumidified supply air from the supply air condition to prevent over cooling. In addition to these low-load laboratories, reheat may also be required in adjacent spaces such as corridors that pro-vide makeup air to replace air being pulled into negative-pressure laboratories.

  19. Los Alamos National Laboratory: 21st century solutions to urgent national challenges

    SciTech Connect (OSTI)

    Mcbranch, Duncan

    2008-01-01

    Los Alamos National Laboratory has been called upon to meet urgent national challenges for more than 65 years. The people, tools, and technologies at Los Alamos are a world class resource that has proved decisive through our history, and are needed in the future. We offer expertise in nearly every science, technology, and engineering discipline, a unique integrated capability for large-scale computing and experimentation, and the proven ability to deliver solutions involving the most complex and difficult technical systems. This white paper outlines some emerging challenges and why the nation needs Los Alamos, the premier National Security Science Laboratory, to meet these challenges.

  20. FY2016 Budget Request: Positioned for the 21st Century Mission...

    National Nuclear Security Administration (NNSA)

    ... unnecessary proliferation-attractive nuclear and radiological material, developing and fielding technologies to deter or detect nuclear proliferation, implementing ...

  1. Basic Research Needs for Geosciences: Facilitating 21st Century Energy Systems

    SciTech Connect (OSTI)

    DePaolo, D. J.; Orr, F. M.; Benson, S. M.; Celia, M.; Felmy, A.; Nagy, K. L.; Fogg, G. E.; Snieder, R.; Davis, J.; Pruess, K.; Friedmann, J.; Peters, M.; Woodward, N. B.; Dobson, P.; Talamini, K.; Saarni, M.

    2007-06-01

    To identify research areas in geosciences, such as behavior of multiphase fluid-solid systems on a variety of scales, chemical migration processes in geologic media, characterization of geologic systems, and modeling and simulation of geologic systems, needed for improved energy systems.

  2. Basic Research Needs for Clean and Efficient Combustion of 21st Century Transportation Fuels

    SciTech Connect (OSTI)

    McIlroy, A.; McRae, G.; Sick, V.; Siebers, D. L.; Westbrook, C. K.; Smith, P. J.; Taatjes, C.; Trouve, A.; Wagner, A. F.; Rohlfing, E.; Manley, D.; Tully, F.; Hilderbrandt, R.; Green, W.; Marceau, D.; O'Neal, J.; Lyday, M.; Cebulski, F.; Garcia, T. R.; Strong, D.

    2006-11-01

    To identify basic research needs and opportunities underlying utilization of evolving transportation fuels, with a focus on new or emerging science challenges that have the potential for significant long-term impact on fuel efficiency and emissions.

  3. Laboratories for the 21st Century: Case Studies, Molecular Foundry, Berkeley, California

    SciTech Connect (OSTI)

    2010-11-29

    This case study provides information on the Molecular Foundry, which incorporates Labs21 principles in its design and construction. The design includes many of the strategies researched at Lawrence Berkeley Laboratory for energy efficient cleanroom and data centers.

  4. Packaging Materials of the 21st Century: "Sustainable Nano-Materials- Benefits to the industry"

    Broader source: Energy.gov [DOE]

    Presentation for the Sustainable Nanomaterials Workshop by Nanocellulose Work Group held on June 26, 2012

  5. Comments for A Conference on Verification in the 21st Century

    SciTech Connect (OSTI)

    Doyle, James E.

    2012-06-12

    The author offers 5 points for the discussion of Verification and Technology: (1) Experience with the implementation of arms limitation and arms reduction agreements confirms that technology alone has never been relied upon to provide effective verification. (2) The historical practice of verification of arms control treaties between Cold War rivals may constrain the cooperative and innovative use of technology for transparency, veification and confidence building in the future. (3) An area that has been identified by many, including the US State Department and NNSA as being rich for exploration for potential uses of technology for transparency and verification is information and communications technology (ICT). This includes social media, crowd-sourcing, the internet of things, and the concept of societal verification, but there are issues. (4) On the issue of the extent to which verification technologies are keeping pace with the demands of future protocols and agrements I think the more direct question is ''are they effective in supporting the objectives of the treaty or agreement?'' In this regard it is important to acknowledge that there is a verification grand challenge at our doorstep. That is ''how does one verify limitations on nuclear warheads in national stockpiles?'' (5) Finally, while recognizing the daunting political and security challenges of such an approach, multilateral engagement and cooperation at the conceptual and technical levels provides benefits for addressing future verification challenges.

  6. Physically-Based Global Downscaling: Climate Change Projections for a Full Century

    SciTech Connect (OSTI)

    Ghan, Steven J.; Shippert, Timothy R.

    2006-05-01

    A global atmosphere/land model with an embedded subgrid orography scheme is used to simulate the period 1977-2100 using ocean surface conditions and radiative constituent concentrations for a climate change scenario. Climate variables simulated for multiple elevation classes are mapping according to the high-resolution of topography in ten regions with complex terrain. Analysis of changes in the simulated climate lead to the following conclusions. Changes in precipitation vary widely, with precipitation increasing more with increasing altitude in some region, decreasing more with altitude in others, and changing little in still others. In some regions the sign of the precipitation change depends on surface elevation. Changes in surface air temperature are rather uniform, with at most a two-fold difference between the largest and smallest changes within a region. In most cases the warming increases with altitude. Changes in snow water are highly dependent on altitude. Absolute changes usually increase with altitude, while relative changes decrease. In places where snow accumulates, an artificial upper bound on snow water limits the sensitivity of snow water to climate change considerably. The simulated impact of climate change on regional mean snow water varies widely, with little impact in regions in which the upper bound on snow water is the dominant snow water sink, moderate impact in regions with a mixture of seasonal and permanent snow, and profound impacts on regions with little permanent snow.

  7. Where contributes most to the present century-scale global warming?

    SciTech Connect (OSTI)

    Zhaomei Zeng; Zhongwei Yan; Duzheng Ye

    1997-12-31

    In recent years, the temporal and spatial patterns of climate changes have received serious attention, by which some authors tried to recognize anthropogenic influences on climate and others tended to explain signals as resulted from natural processes. Yet, there are still many features of the present climate changes remaining open to be explained. As implied in many numerical modeling reviewed in recent literature, the warming induced by enhanced atmospheric greenhouse effect should be larger at higher latitudes. Proxy data indicated also that during past warm periods temperature anomalies at high latitudes were larger than at low latitudes. It gives people the impression that the enhanced greenhouse effect induced global warming should be more easily looked for in near-polar regions. However, this paper will show some new findings.

  8. Physically-Based Global Downscaling Climate Change Projections for a Full Century

    SciTech Connect (OSTI)

    Ghan, Steven J.; Shippert, Timothy R.

    2005-04-15

    A global atmosphere/land model with an embedded subgrid orography scheme is used to simulate the period 1977-2100 using ocean surface conditions and radiative constituent concentrations for a climate change scenario. Climate variables simulated for multiple elevation classes are mapping according to a high-resolution elevation dataset in ten regions with complex terrain. Analysis of changes in the simulated climate leads to the following conclusions. Changes in precipitation vary widely, with precipitation increasing more with increasing altitude in some region, decreasing more with altitude in others, and changing little in still others. In some regions the sign of the precipitation change depends on surface elevation. Changes in surface air temperature are rather uniform, with at most a two-fold difference between the largest and smallest changes within a region; in most cases the warming increases with altitude. Changes in snow water are highly dependent on altitude. Absolute changes usually increase with altitude, while relative changes decrease. In places where snow accumulates, an artificial upper bound on snow water limits the sensitivity of snow water to climate change considerably. The simulated impact of climate change on regional mean snow water varies widely, with little impact in regions in which the upper bound on snow water is the dominant snow water sink, moderate impact in regions with a mixture of seasonal and permanent snow, and profound impacts on regions with little permanent snow.

  9. US forests and global change - precolonization to the 21st century

    SciTech Connect (OSTI)

    Zerbe, J.I.

    1997-12-31

    The forests of the United States and manufacture of products from raw materials produced in the forests are significant for the international global economy and for amelioration of threatening global climate change. This paper explores the conditions of the forests as a result of changing anthropogenic influences, and how these conditions might impact on global change.

  10. DOE/BES Workshop on Clean and Efficient Combustion of 21st Century...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Centers A Workshop to Identify Research Needs and Impacts in Predictive Simulation for Internal Combustion Engines (PreSICE) Overview of the DOE Advanced Combustion Engine R&D

  11. ULTRACLEAN FUELS PRODUCTION AND UTILIZATION FOR THE TWENTY-FIRST CENTURY: ADVANCES TOWARDS SUSTAINABLE TRANSPORTATION FUELS

    SciTech Connect (OSTI)

    Fox, E.

    2013-06-17

    Ultraclean fuels production has become increasingly important as a method to help decrease emissions and allow the introduction of alternative feed stocks for transportation fuels. Established methods, such as Fischer-Tropsch, have seen a resurgence of interest as natural gas prices drop and existing petroleum resources require more intensive clean-up and purification to meet stringent environmental standards. This review covers some of the advances in deep desulfurization, synthesis gas conversion into fuels and feed stocks that were presented at the 245th American Chemical Society Spring Annual Meeting in New Orleans, LA in the Division of Energy and Fuels symposium on "Ultraclean Fuels Production and Utilization".

  12. Heavy crude and tar sands - hydrocarbons for the 21st Century

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    Volume 5 contains: list of participants; speeches and addresses made at the inaugural ceremony and opening plenary session, keynote speech, and speeches made at the closing plenary session; and question and answer sessions. Questions and answers are from the following sessions: geology, characterization and mining; reservoir behavior, drilling and production; recovery processes; and upgrading, government and environment.

  13. The Community Environmental Monitoring Program in the 21st Century: The Evolution of a Monitoring Network

    SciTech Connect (OSTI)

    Hartwell, W.T.; Tappen, J.; Karr, L.

    2007-01-19

    This paper focuses on the evolution of the various operational aspects of the Community Environmental Monitoring Program (CEMP) network following the transfer of program administration from the U.S. Environmental Protection Agency (EPA) to the Desert Research Institute (DRI) of the Nevada System of Higher Education in 1999-2000. The CEMP consists of a network of 29 fixed radiation and weather monitoring stations located in Nevada, Utah, and California. Its mission is to involve stakeholders directly in monitoring for airborne radiological releases to the off site environment as a result of past or ongoing activities on the Nevada Test Site (NTS) and to make data as transparent and accessible to the general public as feasible. At its inception in 1981, the CEMP was a cooperative project of the U.S. Department of Energy (DOE), DRI, and EPA. In 1999-2000, technical administration of the CEMP transitioned from EPA to DRI. Concurrent with and subsequent to this transition, station and program operations underwent significant enhancements that furthered the mission of the program. These enhancements included the addition of a full suite of meteorological instrumentation, state-of-the-art electronic data collectors, on-site displays, and communications hardware. A public website was developed. Finally, the DRI developed a mobile monitoring station that can be operated entirely on solar power in conjunction with a deep-cell battery, and includes all meteorological sensors and a pressurized ion chamber for detecting background gamma radiation. Final station configurations have resulted in the creation of a platform that is well suited for use as an in-field multi-environment test-bed for prototype environmental sensors and in interfacing with other scientific and educational programs. Recent and near-future collaborators have included federal, state, and local agencies in both the government and private sectors. The CEMP also serves as a model for other programs wishing to involve stakeholders with a meaningful role in the process of monitoring and data collection.

  14. 21st Century Locomotive Technology: Quarterly Technical Status Report 5 DOE/AL68284-TSR05

    SciTech Connect (OSTI)

    Lembit Salasoo; Jennifer Topinka; Paul Houpt

    2004-05-07

    The integration of the common rail injection facility with the single cylinder test facility is in progress. Injection modeling parameters wereimproved. Turbocharger experimental data was analyzed and the turbocharger inspected after full load testing. Automatic seal coat spray techniques were developed and several material compositions were tested as coupons and on representative parts. A downselect was made from hybrid energy storage vendor studies. Further development of battery state algorithms was done, and a test plan developed for locomotive demonstration of advanced energy management algorithms. Trip optimization software platform was integrated and baseline validation is in progress. Hybrid energy storage modules have been integrated into the system model.

  15. 21st Century Locomotive Technology: Quarterly Technical Status Report 6 DOE/AL68284-TSR06

    SciTech Connect (OSTI)

    Lembit Salasoo; Jennifer Topinka; Paul K. Houpt

    2004-08-31

    Experimental work to map the performance of the High Pressure Common Rail (HPCR) system on a locomotive is in progress. The experimental trends agree with KIVA modeling predictions. Injection optimization is in progress. Electrically-assisted turbocharger modeling was used to study passenger locomotive performance improvements. Energy storage cycling life testing began, and an improved battery state algorithm was determined. The hybrid locomotive energy storage was prepared for energy management system algorithm testing. Progress in reliable methods for computing optimal driving plans, and methods to reduce the complexity of the necessary optimization are reported.

  16. 21st Century Locomotive Technology: Quarterly Technical Status Report 11 DOE/AL68284-TSR11

    SciTech Connect (OSTI)

    Lembit Salasoo; Jennifer Topinka; Paul Houpt

    2006-02-14

    The fuel injection hardware on the single cylinder research engine was upgraded and performance trends were quantified. The effects of fuel injection rate shapes were studied. Long-term cycling of subscale battery cell assemblies has identified aging trends. Follow-up vibration testing of an instrumented COTS battery was performed. Optimal trip planning algorithms were implemented and demonstrated in the interactive, real-time simulation environment.

  17. 21st Century Locomotive Technology: Quarterly Technical Status Report 8 DOE/AL68284-TSR08

    SciTech Connect (OSTI)

    Lembit Salasoo; Jennifer Topinka; Anthony Furman; Raj Bharadwaj

    2005-02-16

    Completed high pressure common rail system performance mapping at notch 8 to establish advanced fuel injection fuel savings entitlement. Investigated performance differences of several abradable coatings between full-scale tests and rub test coupons using post-run micrographic analysis. Demonstrated implementation of advanced energy management controls on hybrid locomotive. Began advanced energy storage detailed design; continued life-cycle subscale energy storage testing. Formulated trip optimization problem with hybrid locomotive, and evaluated first implementation to produce an optimal driving plan.

  18. Factors that will influence oil and gas supply and demand in the 21st century

    SciTech Connect (OSTI)

    Holditch, S.A.; Chianelli, R.R.

    2008-04-15

    A recent report published by the National Petroleum Council (NPC) in the United States predicted a 50-60% growth in total global demand for energy by 2030. Because oil, gas, and coal will continue to be the primary energy sources during this time, the energy industry will have to continue increasing the supply of these fuels to meet this increasing demand. Achieving this goal will require the exploitation of both conventional and unconventional reservoirs of oil and gas in (including coalbed methane) an environmentally acceptable manner. Such efforts will, in turn, require advancements in materials science, particularly in the development of materials that can withstand high-pressure, high-temperature, and high-stress conditions.

  19. Cellulose Nanomaterials: The Sustainable Material of Choice for the 21st Century

    Broader source: Energy.gov [DOE]

    Presentation for the Sustainable Nanomaterials Workshop by USDA Forest Service held on June 26, 2012

  20. 21st Century Locomotive Technology: Quarterly Technical Status Report 9 DOE/AL68284-TSR09

    SciTech Connect (OSTI)

    Lembit Salasoo; Paul Houpt; Jennifer Topinka; Anthony Furman

    2005-06-29

    Locomotive-scale single cylinder engine with common rail fuel injection data was gathered to explore the fuel consumption and particulate matter emissions entitlement. A structured experiment on thermal spray application of polymer based compressor abradables was begun. Turbine performance improvements were found due to metallic abradables coatings. Hybrid energy storage battery ripple current and long-term cycling tests have been performed. Final track test of advanced energy management system was performed. Fuel optimization computational methods have been enhanced, and a prototype real-time graphic interface developed.

  1. A Century of Physics—The Future of Renewable Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of these ideas and concepts from the most basic, educational level to the most advanced. ... Photovoltaics - turning sunlight into electricity - got its first boost from early ...

  2. A Barn Raising For the 21st Century | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Department of Energy | Department of Energy Bill Valdez Bill Valdez Director of Workforce Management What does this mean for me? There are several program opportunities for small businesses within the Department of Energy. Some of the things on offer this year include: top-level attention to small business objectives, increased outreach, APAT reviews, new tools for prime contractors, expanded teaming, and expanded mentoring. As Ferris Bueller said, "Life moves pretty fast. If you don't

  3. The mine management professions in the twentieth-century Scottish coal mining industry

    SciTech Connect (OSTI)

    Perchard, A.

    2007-07-01

    This book seeks to redress the exclusion of colliery managers and other mining professionals from the history of British, and particularly Scottish, coal industries. This is accomplished by examining these groups within the most crucial period of their ascendancy in the Scottish coal mining industry, 1930-1966. This work seeks to place such persons within their context and to examine their roles, statuses and behaviours through their relationships with employees and the execution of their functions, also examining their terms and conditions of employment, the outlook of their professional associations, and that of their union. Through all this, Dr. Perchard illustrates how this growing consciousness amongst managerial employees in the industry was accompanied by an intense public discussion, within the mining professions, over their future shape, principles and occupational standards.

  4. Flexible Coal: Evolution from Baseload to Peaking Plant (Brochure), 21st Century Power Partnership

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Accelerating the transformation of power systems Flexible Coal Evolution from Baseload to Peaking Plant The experience cited in this paper is from a generating station with multiple units located in North America referred to here as the CGS plant. For commercial reasons, the station has not been identified. Jaquelin Cochran, a Debra Lew, a Nikhil Kumar b a National Renewable Energy Laboratory, b Intertek Summary for Policymakers: Key Findings from a North American Coal Generating Station (CGS)

  5. A Reference Model for Distribution Grid Control in the 21st Century

    SciTech Connect (OSTI)

    Taft, Jeffrey D.; De Martini, Paul; Kristov, Lorenzo

    2015-07-01

    Intensive changes in the structure of the grid due to the penetration of new technologies, coupled with changing societal needs are outpacing the capabilities of traditional grid control systems. The gap is widening at an accelerating rate with the biggest impacts occurring at the distribution level due to the widespread adoption of diverse distribution-connected energy resources (DER) . This paper outlines the emerging distribution grid control environment, defines the new distribution control problem, and provides a distribution control reference model. The reference model offers a schematic representation of the problem domain to inform development of system architecture and control solutions for the high-DER electric system.

  6. DOE/BES Workshop on Clean and Efficient Combustion of 21st Century

    Broader source: Energy.gov (indexed) [DOE]

    Department of Energy As part of DOE's Geothermal Technologies Program, two geothermal companies, AltaRock Energy and Davenport Newberry, announced plans on June 8 to conduct a demonstration of Enhanced Geothermal Systems (EGS) technology at a site located near Bend, Oregon. The purpose of this project is to extract energy from an underground "hot spot" in the Earth's crust by creating an underground reservoir of water near the hot spot. The demonstration will take place on an

  7. Late Cenozoic volcanism in the Lassen area, southernmost Cascade Range, California

    SciTech Connect (OSTI)

    Clynne, M.A.; Muffler, L.J.P.; Dalrymple, G.B. )

    1993-04-01

    Volcanism in the southernmost Cascade Range can be characterized on two scales. Regional volcanism is predominantly basaltic to andesitic, and hundreds of coalescing volcanoes of small volume (10[sup [minus]3] to 10[sup 1] km[sup 3]) with short lifetimes have built a broad platform. Superimposed on the regional volcanism are a few long-lived ([approximately]10[sup 6] years) much larger (>10 [sup 2] km[sup 3]) volcanic centers. Each of these larger centers consists of a basaltic-andesite to andesite composite cone and flanking silicic domes and flows. The evolution of these volcanic centers conforms to a generalized three-stage model during which a conspicuous edifice is constructed. Stages 1 and 2 comprise a dominantly andesitic composite cone; Stage 3 marks a change to dominantly silicic volcanism and is accompanied by development of a hydrothermal system in the permeable core of the andesitic composite cone. Subsequent fluvial and glacial erosion produces a caldera-like depression with a topographically high resistant rim of Stage 2 lavas surrounding the deeply eroded, hydrothermally altered core of the composite cone. Two types of basalt are recognized in the southernmost Cascades; medium-K calc-alkaline (CAB) and low-K olivine tholeiite (LKOT). CAB exhibits considerable geochemical diversity and is the parent magma for the volcanic-center lavas and the majority of the evolved regional lavas. LKOT is chemically homogeneous, and outcrops sporadically in association with extensional tectonics of the Basin and Range Province, and is related to Pleistocene encroachment of Basin-and-Range tectonics on the subduction-related volcanism of the Cascade Range.

  8. Reconstruction of a high-resolution late holocene arctic paleoclimate record from Colville River delta sediments.

    SciTech Connect (OSTI)

    Schreiner, Kathryn Melissa; Lowry, Thomas Stephen

    2013-10-01

    This work was partially supported by the Sandia National Laboratories,Laboratory Directed Research and Development' (LDRD) fellowship program in conjunction with Texas A&M University (TAMU). The research described herein is the work of Kathryn M. Schreiner (Katie') and her advisor, Thomas S. Bianchi and represents a concise description of Katie's dissertation that was submitted to the TAMU Office of Graduate Studies in May 2013 in partial fulfillment of her doctorate of philosophy degree. High Arctic permafrost soils contain a massive amount of organic carbon, accounting for twice as much carbon as what is currently stored as carbon dioxide in the atmosphere. However, with current warming trends this sink is in danger of thawing and potentially releasing large amounts of carbon as both carbon dioxide and methane into the atmosphere. It is difficult to make predictions about the future of this sink without knowing how it has reacted to past temperature and climate changes. This project investigated long term, fine scale particulate organic carbon (POC) delivery by the high-Arctic Colville River into Simpson's Lagoon in the near-shore Beaufort Sea. Modern POC was determined to be a mixture of three sources (riverine soils, coastal erosion, and marine). Downcore POC measurements were performed in a core close to the Colville River output and a core close to intense coastal erosion. Inputs of the three major sources were found to vary throughout the last two millennia, and in the Colville River core covary significantly with Alaskan temperature reconstructions.

  9. Theoretical physicist Evgeny Epelbaum joined Jefferson Lab late in 2003 as

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Connect Theoretical Summary Lecture for Higgs Hunting 2012 Citation Details In-Document Search Title: Theoretical Summary Lecture for Higgs Hunting 2012 In this lecture, I review some of the perspectives on the Higgs boson discussed at the Higgs Hunting 2012 Worshop and discuss the short- and long-term aspects of Higgs physics. Authors: Peskin, Michael E. Publication Date: 2012-08-27 OSTI Identifier: 1049745 Report Number(s): SLAC-PUB-15224 arXiv:1208.5152; TRN: US1204474 DOE Contract

  10. CORRELATED SPECTRAL AND TEMPORAL BEHAVIOR OF LATE-TIME AFTERGLOWS OF GAMMA-RAY BURSTS

    SciTech Connect (OSTI)

    Dado, Shlomo; Dar, Arnon [Physics Department, Technion, Haifa 32000 (Israel)

    2012-12-20

    The cannonball (CB) model of gamma-ray bursts (GRBs) predicts that the asymptotic behavior of the spectral energy density of GRB afterglows is a power law in time and in frequency, and the difference between the temporal and spectral power-law indices, {alpha}{sub X} - {beta}{sub X}, is restricted to the values 0, 1/2, and 1. Here we report the distributions of the values {alpha}{sub X} and {beta}{sub X}, and their difference for a sample of 315 Swift GRBs. This sample includes all Swift GRBs that were detected before 2012 August 1, whose X-ray afterglow extended well beyond 1 day and the estimated error in {alpha}{sub X} - {beta}{sub X} was {<=}0.25. The values of {alpha}{sub X} were extracted from the CB-model fits to the entire light curves of their X-ray afterglow while the spectral index was extracted by the Swift team from the time-integrated X-ray afterglow of these GRBs. We found that the distribution of the difference {alpha}{sub X} - {beta}{sub X} for these 315 Swift GRBs has three narrow peaks around 0, 1/2, and 1 whose widths are consistent with being due to the measurement errors, in agreement with the CB-model prediction.

  11. LATE-TIME OPTICAL EMISSION FROM CORE-COLLAPSE SUPERNOVAE (Journal...

    Office of Scientific and Technical Information (OSTI)

    and a decline in Halpha(O I+O II) which is broadly consistent with the view that the reverse shock has passed through the H envelope of the ejecta in many of these objects. ...

  12. THE LINK BETWEEN LIGHT AND MASS IN LATE-TYPE SPIRAL GALAXY DISKS

    SciTech Connect (OSTI)

    Swaters, Robert A.; Bershady, Matthew A.; Martinsson, Thomas P. K.; Westfall, Kyle B.; Andersen, David R.; Verheijen, Marc A. W.

    2014-12-20

    We present the correlation between the extrapolated central disk surface brightness (?) and extrapolated central surface mass density (?) for galaxies in the DiskMass sample. This ?-? relation has a small scatter of 30% at the high surface brightness (HSB) end. At the low surface brightness (LSB) end, galaxies fall above the ?-? relation, which we attribute to their higher dark matter content. After correcting for the dark matter as well as for the contribution of gas and the effects of radial gradients in the disk, the LSB end falls back on the linear ?-? relation. The resulting scatter around the corrected ?-? relation is 25% at the HSB end and about 50% at the LSB end. The intrinsic scatter in the ?-? relation is estimated to be 10%-20%. Thus, if ? {sub K,} {sub 0} is known, the stellar surface mass density is known to within 10%-20% (random error). Assuming disks have an exponential vertical distribution of mass, the average ?{sub ?}{sup K} is 0.24 M {sub ?}/L {sub ?}, with an intrinsic scatter around the mean of at most 0.05 M {sub ?}/L {sub ?}. This value for ?{sub ?}{sup K} is 20% smaller than we found in Martinsson et al., mainly due to the correction for dark matter applied here. This small scatter means that among the galaxies in our sample, variations in scale height, vertical density profile shape, and/or the ratio of vertical over radial velocity dispersion must be small.

  13. Materials Data on LaTe2 (SG:129) by Materials Project

    SciTech Connect (OSTI)

    Kristin Persson

    2015-02-09

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  14. The Thermal Regime Of The San Juan Basin Since Late Cretaceous...

    Open Energy Info (EERE)

    Times And Its Relationship To San Juan Mountains Thermal Sources Abstract Heat-flow and coal-maturation data suggest that the thermal history of the San Juan Basin has...

  15. Late Cenozoic Ring Faulting and Volcanism in the Coso Range Area...

    Open Energy Info (EERE)

    to the surface during the past few million years. Author Wendell A. Duffield Published Journal Geology, 1975 DOI Not Provided Check for DOI availability: http:crossref.org...

  16. OGLE-2008-BLG-355Lb: A massive planet around a late-type star

    SciTech Connect (OSTI)

    Koshimoto, N.; Sumi, T.; Fukagawa, M.; Shibai, H.; Udalski, A.; Bennett, D. P.; Bond, I. A.; Ling, C. H.; Rattenbury, N.; Botzler, C. S.; Freeman, M.; Abe, F.; Furusawa, K.; Itow, Y.; Masuda, K.; Matsubara, Y.; Fukui, A.; Muraki, Y.; Ohnishi, K.; Saito, To.; Collaboration: MOA Collaboration; OGLE Collaboration; and others

    2014-06-20

    We report the discovery of a massive planet, OGLE-2008-BLG-355Lb. The light curve analysis indicates a planet:host mass ratio of q = 0.0118 ± 0.0006 at a separation of 0.877 ± 0.010 Einstein radii. We do not measure a significant microlensing parallax signal and do not have high angular resolution images that could detect the planetary host star. Therefore, we do not have a direct measurement of the host star mass. A Bayesian analysis, assuming that all host stars have equal probability to host a planet with the measured mass ratio, implies a host star mass of M{sub h}=0.37{sub −0.17}{sup +0.30} M{sub ⊙} and a companion of mass M{sub P}=4.6{sub −2.2}{sup +3.7}M{sub J}, at a projected separation of r{sub ⊥}=1.70{sub −0.30}{sup +0.29} AU. The implied distance to the planetary system is D {sub L} = 6.8 ± 1.1 kpc. A planetary system with the properties preferred by the Bayesian analysis may be a challenge to the core accretion model of planet formation, as the core accretion model predicts that massive planets are far more likely to form around more massive host stars. This core accretion model prediction is not consistent with our Bayesian prior of an equal probability of host stars of all masses to host a planet with the measured mass ratio. Thus, if the core accretion model prediction is right, we should expect that follow-up high angular resolution observations will detect a host star with a mass in the upper part of the range allowed by the Bayesian analysis. That is, the host would probably be a K or G dwarf.

  17. Late Quaternary glacier sensitivity to temperature and precipitation distribution in the Southern Alps of New Zealand

    SciTech Connect (OSTI)

    Ann V. Rowan; Simon H. Brocklehurst; David M. Schultz; Mitchell A. Plummer; Leif S. Anderson; Neil F. Glasser

    2014-05-01

    Glaciers respond to climate variations and leave geomorphic evidence that represents an important terrestrial paleoclimate record. However, the accuracy of paleoclimate reconstructions from glacial geology is limited by the challenge of representing mountain meteorology in numerical models. Precipitation is usually treated in a simple manner and yet represents difficult-to-characterize variables such as amount, distribution, and phase. Furthermore, precipitation distributions during a glacial probably differed from present-day interglacial patterns. We applied two models to investigate glacier sensitivity to temperature and precipitation in the eastern Southern Alps of New Zealand. A 2-D model was used to quantify variations in the length of the reconstructed glaciers resulting from plausible precipitation distributions compared to variations in length resulting from change in mean annual air temperature and precipitation amount. A 1-D model was used to quantify variations in length resulting from interannual climate variability. Assuming that present-day interglacial values represent precipitation distributions during the last glacial, a range of plausible present-day precipitation distributions resulted in uncertainty in the Last Glacial Maximum length of the Pukaki Glacier of 17.1?km (24%) and the Rakaia Glacier of 9.3?km (25%), corresponding to a 0.5°C difference in temperature. Smaller changes in glacier length resulted from a 50% decrease in precipitation amount from present-day values (-14% and -18%) and from a 50% increase in precipitation amount (5% and 9%). Our results demonstrate that precipitation distribution can produce considerable variation in simulated glacier extents and that reconstructions of paleoglaciers should include this uncertainty.

  18. Thermodynamic and Transport Properties of YTe3, LaTe3 and CeTe3

    SciTech Connect (OSTI)

    Ru, N.

    2011-08-19

    Measurements of heat capacity, susceptibility, and electrical resistivity are presented for single crystals of the charge density wave compounds YTe{sub 3}, LaTe{sub 3}, and CeTe{sub 3}. The materials are metallic to low temperatures, but have a small density of states due to the charge density wave gapping large portions of the Fermi surface. CeTe{sub 3} is found to be a weak Kondo lattice, with an antiferromagnetic ground state and T{sub N} = 2.8 K. The electrical resistivity of all three compounds is highly anisotropic, confirming the weak dispersion perpendicular to Te planes predicted by band structure calculations.

  19. Mini Z' Burst from Relic Supernova Neutrinos and Late NeutrinoMasses...

    Office of Scientific and Technical Information (OSTI)

    APA Chicago Bibtex Export Metadata Endnote Excel CSV XML Save to My Library Send to Email Send to Email Email address: Content: Close Send Cite: MLA Format Close Cite: APA ...

  20. The climatic and hydrologic history of southern Nevada during the late Quaternary

    SciTech Connect (OSTI)

    Forester, R.M.; Bradbury, J.P.; Carter, C.; Elvidge-Tuma, A.B.; Hemphill, M.L.; Lundstrom, S.C.; Mahan, S.A.; Marshall, B.D.; Neymark, L.A.; Paces, J.B.; Sharpe, S.E.; Whelan, J.F.; Wigand, P.E.

    1999-09-21

    Understanding climate change during the expected life span of a potential high-level nuclear-waste repository at Yucca Mountain, Nevada, requires estimates of future climate boundary conditions. These climate boundary conditions are governed by changes in the Earth's orbital properties (eccentricity, obliquity, precession) that determine insolation. Subcycles of the 400,000 year insolation-controlled climate cycles last approximately 100,000 years. This report describes the changes which have occurred in the climatic history of Southern Nevada during the past 400,000 years. These changes provide a basis for understanding the changes which may occur during the long-term future in this area.

  1. Modified gravity a la Galileon: Late time cosmic acceleration and observational constraints

    SciTech Connect (OSTI)

    Ali, Amna; Sami, M.; Gannouji, Radouane

    2010-11-15

    In this paper we examine the cosmological consequences of fourth order Galileon gravity. We carry out detailed investigations of the underlying dynamics and demonstrate the stability of one de Sitter phase. The stable de Sitter phase contains a Galileon field {pi} which is an increasing function of time ({pi}>0). Using the required suppression of the fifth force, supernovae, Baryon acoustic oscillations, and CMB data, we constrain parameters of the model. We find that the {pi} matter coupling parameter {beta} is constrained to small numerical values such that {beta}<0.02. We also show that the parameters of the third and fourth order in the action (c{sub 3},c{sub 4}) are not independent and with reasonable assumptions, we obtain constraints on them. We investigate the growth history of the model and find that the subhorizon approximation is not allowed for this model. We demonstrate strong scale dependence of linear perturbations in the fourth order Galileon gravity.

  2. Crystallized alkali-silica gel in concrete from the late 1890s

    SciTech Connect (OSTI)

    Peterson, Karl . E-mail: cee@mtu.edu; Gress, David . E-mail: dlgress@unh.edu; Van Dam, Tom . E-mail: cee@mtu.edu; Sutter, Lawrence . E-mail: cee@mtu.edu

    2006-08-15

    The Elon Farnsworth Battery, a concrete structure completed in 1898, is in an advanced state of disrepair. To investigate the potential for rehabilitation, cores were extracted from the battery. Petrographic examination revealed abundant deposits of alkali silica reaction products in cracks associated with the quartz rich metasedimentary coarse aggregate. The products of the alkali silica reaction are variable in composition and morphology, including both amorphous and crystalline phases. The crystalline alkali silica reaction products are characterized by quantitative X-ray energy dispersive spectrometry (EDX) and X-ray diffraction (XRD). The broad extent of the reactivity is likely due to elevated alkali levels in the cements used.

  3. Late Pseudocoarctation Syndrome After Stent-Graft Implantation For Traumatic Aortic Rupture

    SciTech Connect (OSTI)

    Letocart, Vincent Fau, Georges Tirouvanziam, Ashok; Toquet, Claire; Al Habash, Oussama Guerin, Patrice; Rousseau, Herve; Crochet, Dominique

    2013-06-15

    The present observation illustrates an unusual complication occurring after stent-grafting (S-graft) for aortic isthmus rupture. A 22-year-old patient, treated by S-graft in the emergency department for traumatic aortic rupture, was readmitted 10 months later with pseudocoarctation syndrome. A membrane was found inside the stent-graft that had induced a pseudo-dissection, which caused the pseudocoarctation syndrome. Surgical treatment consisted of removing the stent-graft and membrane and replacing it with a vascular implant. The patient's clinical course was fair. The suggested mechanism was circumferential neoendothelialization of the stent-graft. Dehiscence caused the superior part of the membrane to drop into the lumen of the stent-graft creating a 'false channel' that compressed the 'true lumen' and induced 'pseudocoarctation' syndrome. The cause of the extensive neointimalization remains unexplained. Thoracic aortic stent-grafts require regular follow-up monitoring by angioscan or angio-magnetic resonance imaging.

  4. Introduction

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Prehistoric cultural resources are abundant on the Nevada National Security Site (NNSS), formerly know as the Nevada Test Site (NTS), indicating Native Americans occupied the region for more than 10,000 years. Historic artifacts from the late nineteenth and early twentieth centuries are also present, reflecting use by miners, ranchers, and settlers who traveled through the area. The U.S. Department of Energy National Nuclear Security Administration Nevada Field Office (NNSA/NFO) is committed to

  5. Electronic dispersion from long-range atomic ordering and periodic

    Office of Scientific and Technical Information (OSTI)

    potentials in two overlapping graphene sheets. (Conference) | SciTech Connect 07-01 OSTI Identifier: 1106562 Report Number(s): SAND2013-5766C 465528 DOE Contract Number: AC04-94AL85000 Resource Type: Conference Resource Relation: Conference: The 19th American Conference on Crystal Growth and Epitaxy held July 21-26, 2013 in Keystone.; Related Information: Proposed for presentation at the The 19th American Conference on Crystal Growth and Epitaxy held July 21-26, 2013 in Keystone

  6. Interested in Open Energy Data? Watch the Energy Datapalooza Live! |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Interested in Open Energy Data? Watch the Energy Datapalooza Live! Interested in Open Energy Data? Watch the Energy Datapalooza Live! September 27, 2012 - 5:25pm Addthis U.S. Chief Technology Officer Todd Park kicks off the Safety Datapalooza on September 19th. | Photo Courtesy U.S. Department of Labor U.S. Chief Technology Officer Todd Park kicks off the Safety Datapalooza on September 19th. | Photo Courtesy U.S. Department of Labor Matthew Loveless Matthew Loveless

  7. Microsoft PowerPoint - 13_hudarmoral.ppt [Compatibility Mode...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    top (m 100 120 140 100 120 140 15th 16th 17th 18th 19th e above cl 40 60 80 40 60 80 20th 22nd 25th cloud top re altitude 0 20 40 0 20 40 0 500 1000 1500 2000 2500 pressu -40...

  8. Global strategies for environmental issues

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    This is the 19th Annual NAEP conference proceedings, containing abstracts of oral presentations and poster sessions. Broad areas covered include the following: Environmental Management; Biodiversity/sustainable development; Gulf Regional Issues; Environmental ethics/equity; NEPA workshop and symposium; International environmental issues; global Environmental Effects; Risk Assessment; and Environmental effects of nuclear waste management.

  9. Head of EM to Kick Off Congressional Nuclear Cleanup Caucus

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM Senior Advisor Dave Huizenga will provide an overview of EM’s proposed fiscal year 2014 budget Thursday in the first of six briefings for the 19th annual U.S. House Nuclear Cleanup Caucus.

  10. Summer Study on Energy Efficiency in Buildings

    Broader source: Energy.gov [DOE]

    The 2016 Summer Study will be the 19th biennial ACEEE conference on Energy Efficiency in Buildings. A diverse group of professionals from around the world will gather at this pre-eminent meeting to discuss the technological basis for, and practical implementation of, actions to reduce energy use and the climate impacts associated with buildings.

  11. ICP-MS Workshop

    SciTech Connect (OSTI)

    Carman, April J.; Eiden, Gregory C.

    2014-11-01

    This is a short document that explains the materials that will be transmitted to LLNL and DNN HQ regarding the ICP-MS Workshop held at PNNL June 17-19th. The goal of the information is to pass on to LLNL information regarding the planning and preparations for the Workshop at PNNL in preparation of the SIMS workshop at LLNL.

  12. Wind Market Reports Twitter Q&A

    Broader source: Energy.gov [DOE]

    On Tuesday August 19th, 2014 from 1:00 PM – 2:00 PM EST, the Energy Department will host a live Twitter Q&A from the from the Official Energy Department Twitter Account to answer questions...

  13. Integrated assessment of global warming

    SciTech Connect (OSTI)

    Ott, K.O.

    1996-12-31

    The anomalies of sea surface temperatures, which show a warming trend since the 1850s through the decade 1960/70 of {Delta}SST {approximately} 0.3 C, are complemented by changes of the ground surface temperature ({Delta}GST). The global surface temperature change, based on these data, allows an integrated assessment of the associated increase in black-body irradiance and a comparison with the enhanced greenhouse-gas back-scattering. Information on the GST history is obtained from unfolding analyses of underground temperature distributions measured in 90 boreholes in Alaskan permafrost and Canadian bedrock. These analyses show GST increases ({Delta}GST) since the 19th century through 1960/70 of 3 C on average, with standard deviations of +1.8 C and {minus}0.9 C on the high and low end respectively. The onset of the warming trend, which is uncertain in the GST data, is timed more accurately by detailed length records of large valley glaciers in the US and the Alps. Evaluation of the heat capacities and heat transfer indicates that the temperature response to an increase in radiative forcing must be much larger on land than on the sea. Conversely, the observed large ratio of {Delta}GST and {Delta}SST can only be explained by increased radiative forcing. From 1960/70 through the warmest decade on record, 1980/90, global {Delta}SST and {Delta}SAT have further increased to 0.6 C and 0.8 C respectively, But, the most recent GST data are not accurate enough to extend the comparison through 1990. Calculation of the increase of radiative forcing from back-scattering of greenhouse gases for 1850 to 1970 yields 1.3 W/cm{sup 2}. The increase in black-body irradiance from 3.6 C warming on land and 0.3 C on sea provides the required balance. The warming on land of 3.6 C is larger than the average value of 3.0 C, but well within the observed range.

  14. David Blackwell’s Forty Years in the Idaho Desert, The Foundation for 21st Century Geothermal Research

    SciTech Connect (OSTI)

    McLing, Travis; McCurry, Mike; Cannon, Cody; Neupane, Ghanashyam; Wood, Thomas; Podgorney, Robert; Welhan, John; Mines, Greg; Mattson, Earl; Wood, Rachel; Palmer, Carl

    2015-04-01

    Dr. David Blackwell has had a profound influence on geo-thermal exploration and R&D in Idaho. Forty years have elapsed since the first Southern Methodist University (SMU) temperature logging truck rolled onto the high desert in Southern Idaho, yet even after so much time has elapsed, most recent and ongoing geothermal R&D can trace its roots to the foundational temperature studies led by Dr. Blackwell. We believe that the best way to honor any scientist is to see their work carried forward by others. As this paper demonstrates, it has been an easy task to find a host of Idaho researchers and students eager to contribute to this tribute paper. We organize this paper by ongoing or recent projects that continue to benefit left to Idaho by Dr. David Blackwell.

  15. Integrating mechanistic and polymorphism data to characterize human genetic susceptibility for environmental chemical risk assessment in the 21st century

    SciTech Connect (OSTI)

    Mortensen, Holly M.; Euling, Susan Y.

    2013-09-15

    Response to environmental chemicals can vary widely among individuals and between population groups. In human health risk assessment, data on susceptibility can be utilized by deriving risk levels based on a study of a susceptible population and/or an uncertainty factor may be applied to account for the lack of information about susceptibility. Defining genetic susceptibility in response to environmental chemicals across human populations is an area of interest in the NAS' new paradigm of toxicity pathway-based risk assessment. Data from high-throughput/high content (HT/HC), including -omics (e.g., genomics, transcriptomics, proteomics, metabolomics) technologies, have been integral to the identification and characterization of drug target and disease loci, and have been successfully utilized to inform the mechanism of action for numerous environmental chemicals. Large-scale population genotyping studies may help to characterize levels of variability across human populations at identified target loci implicated in response to environmental chemicals. By combining mechanistic data for a given environmental chemical with next generation sequencing data that provides human population variation information, one can begin to characterize differential susceptibility due to genetic variability to environmental chemicals within and across genetically heterogeneous human populations. The integration of such data sources will be informative to human health risk assessment.

  16. Opportunities for Catalysis in The 21st Century. A report from the Basic Energy Sciences Advisory Committee

    SciTech Connect (OSTI)

    White, J. M.; Bercaw, J.

    2002-05-16

    Chemical catalysis affects our lives in myriad ways. Catalysis provides a means of changing the rates at which chemical bonds are formed and broken and of controlling the yields of chemical reactions to increase the amounts of desirable products from these reactions and reduce the amounts of undesirable ones. Thus, it lies at the heart of our quality of life: The reduced emissions of modern cars, the abundance of fresh food at our stores, and the new pharmaceuticals that improve our health are made possible by chemical reactions controlled by catalysts. Catalysis is also essential to a healthy economy: The petroleum, chemical, and pharmaceutical industries, contributors of $500 billion to the gross national product of the United States, rely on catalysts to produce everything from fuels to ''wonder drugs'' to paints to cosmetics. Today, our Nation faces a variety of challenges in creating alternative fuels, reducing harmful by-products in manufacturing, cleaning up the environment and preventing future pollution, dealing with the causes of global warming, protecting citizens from the release of toxic substances and infectious agents, and creating safe pharmaceuticals. Catalysts are needed to meet these challenges, but their complexity and diversity demand a revolution in the way catalysts are designed and used. This revolution can become reality through the application of new methods for synthesizing and characterizing molecular and material systems. Opportunities to understand and predict how catalysts work at the atomic scale and the nanoscale are now appearing, made possible by breakthroughs in the last decade in computation, measurement techniques, and imaging and by new developments in catalyst design, synthesis, and evaluation.

  17. EAC Presentation on the Policy Framework for a 21st Century Grid: Enabling our Secure Energy Future (July 12, 2011)

    Broader source: Energy.gov [DOE]

    Presentation by Assistant Secretary Patricia Hoffman of the Office of Electricity Delivery and Energy Reliability  before the Electricity Advisorty Committee, July 12, 2011, on work being performed...

  18. Century-long Record of Black Carbon in an Ice Core from the Eastern Pamirs: Estimated Contributions from Biomass Burning

    SciTech Connect (OSTI)

    Wang, Mo; Xu, B.; Kaspari, Susan D.; Gleixner, Gerd; Schwab, Valerie; Zhao, Huabiao; Wang, Hailong; Yao, Ping

    2015-08-01

    We analyzed refractory black carbon (rBC) in an ice core spanning 1875-2000 AD from Mt. Muztagh Ata, the Eastern Pamirs, using a Single Particle Soot Photometer (SP2). Additionally a pre-existing levoglucosan record from the same ice core was used to differentiate rBC that originated from open fires, energy-related combustion of biomass, and fossil fuel combustion. Mean rBC concentrations increased four-fold since the mid-1970s and reached maximum values at the end of 1980s. The observed decrease of the rBC concentrations during the 1990s was likely driven by the economic recession of former USSR countries in Central Asia. Levoglucosan concentrations showed a similar temporal trend to rBC concentrations, exhibiting a large increase around 1980 AD followed by a decrease in the 1990s that was likely due to a decrease in energy-related biomass combustion. The time evolution of levoglucosan/rBC ratios indicated stronger emissions from open fires during the 1940s-1950s, while the increase in rBC during the 1980s-1990s was caused from an increase in energy-related combustion of biomass and fossil fuels.

  19. Oilheat research agenda: A ten year blueprint for residential oilheat research and development in the Twenty-First Century

    SciTech Connect (OSTI)

    McDonald, R.J.; Batey, J.E.

    1996-05-01

    This report summarizes a joint research agenda planned for the US Department of Energy and the National Oilheat Research Alliance (NORA) under a cooperative effort between the Federal government and the private sector industries involved in oilheat marketing. The objective of the oilheat research program is to develop the technical basis for improved equipment designs and operating strategies based on an enhanced understanding of oil-burning fundamentals, heat transfer, and associated environmental factors. The program will continue to provide the oil-fueled heating equipment industry with the basis for developing a new, modern generation of equipment and provide the oil marketers, equipment installers, and consumers with improved knowledge of how best to install, maintain, and operate such equipment for maximum performance and minimum fuel use and environmental impact.

  20. Heavy crude and tar sands: Hydrocarbons for the 21st century. Volume 4, Upgrading, government and environment

    SciTech Connect (OSTI)

    Meyer, R.F.

    1991-12-31

    The 46 reports in Volume 4 begin with a section in the all-important subject of upgrading. Seventeen papers deals with upgrading of heavy oil and bitumen involving either of two basic processes, hydrogen addition or carbon rejection. Another five reports deal with the treatment of the oil in upgrading process through demetallization and by coprocessing with coal or lignite. The two papers on the Imulsion process present both the technology and the field experiences developed to transport and produce ORIMULSION{trademark}, the fuel developed with the bitumen from the Orinoco Belt. Seven papers in the section on environmental impacts are directed specifically to heavy oil. These deal mostly with the upgrading process, although one addresses the vexing problems of the refusal of extraction fines to settle out of tailings ponds in oil sand processing. A principal objective of the Centre is the fostering of technical cooperation between countries and the transfer of technological expertise in the area of heavy oil and natural bitumens from countries with advanced technology to those with undeveloped resources. The five reports in the section on Marketing and Economics carefully consider the demand in the context of world oil supply. Economic incentives is the stage for the final section of the volume, Government Policies and Legal Considerations. One of these reports presents an excellent review of the Venezuelan oil industry and its major efforts to promote the exploitation and utilization of heavy crude oil. Another of the reports describes ways in which the leasing procedures in Alberta may be modified to make the development of oil sands more effective. A third paper outlines procedures a company may usefully follow in order to most efficiently undertake the entire process of obtaining and developing oil sands leases. Individual papers have been processed separately for the database.

  1. Crude oil and alternate energy production forecasts for the twenty-first century: The end of the hydrocarbon era

    SciTech Connect (OSTI)

    Edwards, J.D.

    1997-08-01

    Predictions of production rates and ultimate recovery of crude oil are needed for intelligent planning and timely action to ensure the continuous flow of energy required by the world`s increasing population and expanding economies. Crude oil will be able to supply increasing demand until peak world production is reached. The energy gap caused by declining conventional oil production must then be filled by expanding production of coal, heavy oil and oil shales, nuclear and hydroelectric power, and renewable energy sources (solar, wind, and geothermal). Declining oil production forecasts are based on current estimated ultimate recoverable conventional crude oil resources of 329 billion barrels for the United States and close to 3 trillion barrels for the world. Peak world crude oil production is forecast to occur in 2020 at 90 million barrels per day. Conventional crude oil production in the United States is forecast to terminate by about 2090, and world production will be close to exhaustion by 2100.

  2. Advanced power generation systems for the 21st Century: Market survey and recommendations for a design philosophy

    SciTech Connect (OSTI)

    Andriulli, J.B.; Gates, A.E.; Haynes, H.D.; Klett, L.B.; Matthews, S.N.; Nawrocki, E.A.; Otaduy, P.J.; Scudiere, M.B.; Theiss, T.J.; Thomas, J.F.; Tolbert, L.M.; Yauss, M.L.; Voltz, C.A.

    1999-11-01

    The purpose of this report is to document the results of a study designed to enhance the performance of future military generator sets (gen-sets) in the medium power range. The study includes a market survey of the state of the art in several key component areas and recommendations comprising a design philosophy for future military gen-sets. The market survey revealed that the commercial market is in a state of flux, but it is currently or will soon be capable of providing the technologies recommended here in a cost-effective manner. The recommendations, if implemented, should result in future power generation systems that are much more functional than today's gen-sets. The number of differing units necessary (both family sizes and frequency modes) to cover the medium power range would be decreased significantly, while the weight and volume of each unit would decrease, improving the transportability of the power source. Improved fuel economy and overall performance would result from more effective utilization of the prime mover in the generator. The units would allow for more flexibility and control, improved reliability, and more effective power management in the field.

  3. Molecular medicine for the 21. century: A computational basis for design and critique of vaccines and therapeutics

    SciTech Connect (OSTI)

    Lapedes, A.; Myers, G.; Perelson, A.; Farber, R.; Tung, C.S.

    1997-08-01

    This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The kissing-loop RNA motif is thought to modulate different steps in the retroviral life cycle. Using an RNA folding protocol developed under this project, the authors are studying the folding of the potential kissing-loop motif in HIV. Using only limited information on base-springs, and the constraints based on the connectivities, they are modeling the structure and the flexibility of this particular structural motif and have developed three predicted structures with low conformational energy. Following on the earlier work which analyzed correlated mutations in the V3 loop of HIV, they have developed an evolutionary model which incorporates non-independent mutations at different sequence positions in model sequences. This model takes into account the effects of the phylogenetic tree on the analysis of mutations, and shows a higher correspondence of correlated positions with structurally adjacent positions in the model than previous analyses. Additional research under this project has dealt with analyzing the dynamics of HIV in vivo. Using some simple models and patient data, they were able to establish for the first time some quantitative estimates of HIV dynamics in vivo.

  4. INTERPRETATION OF AIRBORNE ELECTROMAGNETIC AND MAGNETIC DATA IN THE 600 AREA

    SciTech Connect (OSTI)

    CUMMINS GD

    2010-11-11

    As part of the 200-PO-1 Phase I geophysical surveys, Fugro Airborne Surveys was contracted to collect airborne electromagnetic (EM) and magnetic surveys of the Hanford Site 600 Area. Two helicopter survey systems were used with the HeliGEOTEM{reg_sign} time domain portion flown between June 19th and June 20th, 2008, and the RESOLVE{reg_sign} frequency domain portion was flown from June 29th to July 1st, 2008. Magnetic data were acquired contemporaneously with the electromagnetic surveys using a total-field cesium vapor magnetometer. Approximately 925 line kilometers (km) were flown using the HeliGEOTEM{reg_sign} II system and 412 line kilometers were flown using the RESOLVE{reg_sign} system. The HeliGEOTEM system has an effective penetration of roughly 250 meters into the ground and the RESOLVE system has an effective penetration of roughly 60 meters. Acquisition parameters and preliminary results are provided in SGW-39674, Airborne Electromagnetic Survey Report, 200-PO-1 Groundwater Operable Unit, 600 Area, Hanford Site. Airborne data are interpreted in this report in an attempt to identify areas of likely preferential groundwater flow within the aquifer system based on the presence of paleochannels or fault zones. The premise for the interpretation is that coarser-grained intervals have filled in scour channels created by episodic catastrophic flood events during the late Pleistocene. The interpretation strategy used the magnetic field anomaly data and existing bedrock maps to identify likely fault or lineament zones. Combined analysis of the magnetic, 60-Hz noise monitor, and flight-altitude (radar) data were used to identify zones where EM response is more likely due to cultural interference and or bedrock structures. Cross-sectional and map view presentations of the EM data were used to identify more electrically resistive zones that likely correlate with coarser-grained intervals. The resulting interpretation identifies one major northwest-southeast trending preferential flowpath with several minor units running along a similar trend. This presumed path of preferential flow is compared with the tritium concentration levels observed for the 600 Area. Analysis of the magnetic field data shows the location of potential bedrock faults and lineaments which may influence the horizontal and vertical flow of water. Faults lying within, or in the vicinity of preferential groundwater flow paths may allow flow into or out of the otherwise confined basalt layers.

  5. Giant fields of the late 80s associated with type [open quotes]A[close quotes] subduction in South America

    SciTech Connect (OSTI)

    Duval, B.; Cramez, C. ); Figuera, J. ); Lander, R. ); Hernandez, G. )

    1993-02-01

    About 10 billion bbl of recoverable oil have been found in these three fields for which the petroleum generating subsystem is very similar. The potential source rocks are the organic sediments associated with the major downlap surface of the post-Pangea continental encroachment sedimentary cycle, i.e., MFS 91, 5 Ma (La Luna formation). However, the concentrating physico-chemical petroleum subsystem is quite different. The El Furrial/Musipan field is associated with a Tertiary foredeep basin overlying a generating Atlantic type passive margin. On the other hand, Cusiana and Ceuta fields are associated with a Tertiary foredeep basin developed over a generating back-arc basin. The different stacking of sedimentary basins controls the migration/entrapment petroleum subsystem. In El Furrial/Musipan, decollement surfaces and their associated thrusts are predominant whereas, in Ceuta and Cusiana the majority of compressional structures are created by tectonic inversions. These tectonic settings create different petroleum systems: (a) supercharged with low impedance and lateral drainage in El Furrial/Musipan, (b) normally charged with high impedance and vertically drained in Ceuta and Cusiana area. Each case requires appropriated exploration approaches.

  6. An inverse Compton origin for the 55 GeV photon in the late afterglow of GRB 130907A

    SciTech Connect (OSTI)

    Tang, Qing-Wen; Wang, Xiang-Yu [School of Astronomy and Space Science, Nanjing University, Nanjing 210093 (China); Tam, Pak-Hin Thomas, E-mail: xywang@nju.edu.cn, E-mail: phtam@phys.nthu.edu.tw [Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China)

    2014-06-20

    The extended high-energy gamma-ray (>100 MeV) emission which occurs well after the prompt gamma-ray bursts (GRBs) is usually explained as the afterglow synchrotron radiation. Here we report the analysis of Fermi Large Area Telescope observations of GRB 130907A. A 55 GeV photon compatible with the position of the burst was found about 5 hr after the prompt phase. The probability that this photon is associated with GRB 130907A is higher than 99.96%. The energy of this photon exceeds the maximum synchrotron photon energy at this time and its occurrence thus challenges the synchrotron mechanism as the origin for the extended high-energy >10 GeV emission. Modeling of the broadband spectral energy distribution suggests that such high energy photons can be produced by the synchrotron self-Compton emission of the afterglow.

  7. Late Pleistocene and Holocene-Age Columbia River Sediments and Bedforms: Hanford Reach Area, Washington - Part 2

    SciTech Connect (OSTI)

    K.R. Fecht, T.E. Marceau

    2006-03-28

    This report presents the results of a geologic study conducted on the lower slopes of the Columbia River Valley in south-central Washington. The study was designed to investigate glaciofluvial and fluvial sediments and bedforms that are present in the river valley and formed subsequent to Pleistocene large-scale cataclysmic flooding of the region.

  8. Analysis of In-Vessel Late Phase Melt Progression Using SCDAP/RELAP5/MOD3.3

    SciTech Connect (OSTI)

    Park, R.J.; Kim, S.B.; Kim, H.D. [Korea Atomic Energy Research Institute, Yuseong, P.O.Box 105, Daejeon, 305-600 (Korea, Republic of)

    2004-07-01

    High-pressure in-vessel melt progressions of the KSNP (Korean Standard Nuclear Power Plant) have been analyzed using the SCDAP/RELAP5/MOD3.3 computer code. The total loss of feed water (LOFW) to the steam generators with/without intentional RCS depressurization using the safety depressurization system (SDS) and the station blackout (SBO) have been simulated from transient initiation to reactor vessel failure. The SCDAP/RELAP5/MOD3.3 results have shown that the pressure boundary of the reactor coolant system did not fail before reactor vessel failure in the high-pressure sequences of the LOFW and the SBO transients of the KSNP. In all the high-pressure transients, approximately 20-30 % of the core material was melted and relocated to the lower plenum of the reactor vessel at the time of reactor vessel failure. Intentional RCS depressurization using the SDS for the total LOFW delays reactor vessel failure for approximately 5 hours by actuation of the safety injection tanks. At the time of reactor vessel failure, approximately 50-60 % of the fuel rod cladding was oxidized for the total LOFW and the SBO transients of the KSNP. (authors)

  9. microRNA Alterations Driving Acute and Late Stages of Radiation-Induced Fibrosis in a Murine Skin Model

    SciTech Connect (OSTI)

    Simone, Brittany A.; Ly, David; Savage, Jason E.; Hewitt, Stephen M.; Dan, Tu D.; Ylaya, Kris; Shankavaram, Uma; Lim, Meng; Jin, Lianjin; Camphausen, Kevin; Mitchell, James B.; Simone, Nicole L.

    2014-09-01

    Purpose: Although ionizing radiation is critical in treating cancer, radiation-induced fibrosis (RIF) can have a devastating impact on patients' quality of life. The molecular changes leading to radiation-induced fibrosis must be elucidated so that novel treatments can be designed. Methods and Materials: To determine whether microRNAs (miRs) could be responsible for RIF, the fibrotic process was induced in the right hind legs of 9-week old CH3 mice by a single-fraction dose of irradiation to 35Gy, and the left leg served as an unirradiated control. Fibrosis was quantified by measurements of leg length compared with control leg length. By 120days after irradiation, the irradiated legs were 20% (P=.013) shorter on average than were the control legs. Results: Tissue analysis was done on muscle, skin, and subcutaneous tissue from irradiated and control legs. Fibrosis was noted on both gross and histologic examination by use of a pentachrome stain. Microarrays were performed at various times after irradiation, including 7days, 14days, 50days, 90days, and 120days after irradiation. miR-15a, miR-21, miR-30a, and miR-34a were the miRs with the most significant alteration by array with miR-34a, proving most significant on confirmation by reverse transcriptase polymerase chain reaction, c-Met, a known effector of fibrosis and downstream molecule of miR-34a, was evaluated by use of 2cell lines: HCT116 and 1522. The cell lines were exposed to various stressors to induce miR changes, specifically ionizing radiation. Additionally, invitro transfections with pre-miRs and anti-miRs confirmed the relationship of miR-34a and c-Met. Conclusions: Our data demonstrate an inverse relationship with miR-34a and c-Met; the upregulation of miR-34a in RIF causes inhibition of c-Met production. miRs may play a role in RIF; in particular, miR-34a should be investigated as a potential target to prevent or treat this devastating side effect of irradiation.

  10. Super-massive planets around late-type starsthe case of OGLE-2012-BLG-0406Lb

    SciTech Connect (OSTI)

    Poleski, Rados?aw; Gould, Andrew; Udalski, Andrzej; Szyma?ski, Micha? K.; Soszy?ski, Igor; Kubiak, Marcin; Pietrzy?ski, Grzegorz; Koz?owski, Szymon; Pietrukowicz, Pawe?; Ulaczyk, Krzysztof; Skowron, Jan; Wyrzykowski, ?ukasz; Dong, Subo

    2014-02-10

    Super-Jupiter-mass planets should form only beyond the snow line of host stars. However, the core accretion theory of planetary formation does not predict super-Jupiters forming around low-mass hosts. We present a discovery of a 3.9 1.2 M {sub Jup} mass planet orbiting the 0.59 0.17 M {sub ?} star using the gravitational microlensing method. During the event, the projected separation of the planet and the star is 3.9 1.0 AU, i.e., the planet is significantly further from the host star than the snow line. This is the fourth such planet discovered using the microlensing technique and challenges the core accretion theory.

  11. Evidence for change in climate variability during the late-holocene inferred from a sequence of Lake Michigan dune ridges

    SciTech Connect (OSTI)

    Lichter, J. (Univ. of Minnesota, St. Paul, MN (United States))

    1994-06-01

    The timing of ridge formation at a sequence of northern Lake Michigan foredune ridges was calibrated with the historical lake-level record and with climate records to reconstruct a history of climate-related lake-level variation. Foredune ridges are constructed during receding and low lake levels related to regional drought. Shore recession during high lake levels may promote eolian erosion which modifies the shore-parallel foredune ridges into parabolic dunes. A chronology of ridge formation over the last 2400 years indicates that parabolic dunes developed only during periods of frequent ridge formation and drought. Analysis of ridge formation during the historical record of lake-level variation suggest that this association results from increase variability in regional water balances as opposed to variation in sediment supply. Periods of high variability in regional water balances occurred between 380 BC and AD 20, AD 20, AD 20-300, AD 880-990, AD 1180-1280, and AD 1520-1650.

  12. The Origin of the Universe and the Arrow of Time

    ScienceCinema (OSTI)

    Carroll, Sean

    2010-01-08

    Over a century ago, Boltzmann and others provided a microscopic understanding for the tendency of entropy to increase. But this understanding relies ultimately on an empirical fact about cosmology: the early universe had very low entropy. Why was it like that? Cosmologist aspire to provide a dynamical explanation for the observed state of the universe, but have had very little to say about the dramatic asymmetry between early times and late times. I will argue that the search for a natural explanation for the observed breakdown of time-reversal symmetry in cosmology leads us directly to interesting conclusions about inflation, quantum gravity, and the multiverse.

  13. TOP500 Supercomputers for June 2002

    SciTech Connect (OSTI)

    Strohmaier, Erich; Meuer, Hans W.; Dongarra, Jack; Simon, Horst D.

    2002-06-20

    19th Edition of TOP500 List of World's Fastest Supercomputers Released MANNHEIM, Germany; KNOXVILLE, Tenn.;&BERKELEY, Calif. In what has become a much-anticipated event in the world of high-performance computing, the 19th edition of the TOP500 list of the worlds fastest supercomputers was released today (June 20, 2002). The recently installed Earth Simulator supercomputer at the Earth Simulator Center in Yokohama, Japan, is as expected the clear new number 1. Its performance of 35.86 Tflop/s (trillions of calculations per second) running the Linpack benchmark is almost five times higher than the performance of the now No.2 IBM ASCI White system at Lawrence Livermore National Laboratory (7.2 Tflop/s). This powerful leap frogging to the top by a system so much faster than the previous top system is unparalleled in the history of the TOP500.

  14. Microsoft PowerPoint - webcast_of_energy_education_and_bites_presentation_11_19_2012 (4).pptx

    Energy Savers [EERE]

    Education & Workforce Development Webinar: Energy Education and BITES Matthew Garcia AAAS Science & Technology Fellow EERE-EEWD November 19 th , 2012 2 | Education & Workforce Development eere.energy.gov Webinar Agenda Energy Education and the use of IT, simulations and other online learning tools in energy education DOE-Education and Workforce Development: Overview of EWD, Energy literacy and Energy 101 and IT strategy Matthew Garcia- EERE EWD- AAAS Science and Technology Policy

  15. Building Clean Energy Partnerships With China and Japan | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Clean Energy Partnerships With China and Japan Building Clean Energy Partnerships With China and Japan November 15, 2010 - 12:54pm Addthis Secretary Chu Secretary Chu Former Secretary of Energy This week (November 14th-19th), I will be traveling to China and Japan to meet with government officials, business leaders and others to discuss the opportunities for partnership in clean energy - partnerships that are important to America's economic competitiveness. China and Japan have made

  16. Fact Sheet: Sustainable Development of Hydropower Initiative | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Sustainable Development of Hydropower Initiative Fact Sheet: Sustainable Development of Hydropower Initiative A fact sheet detailling the mission behind the Clean Energy Ministerial in Washington D.C on July 19th and July 20th where ministers pledged to establish the Sustainable Development of Hydropower Initiative. PDF icon Fact Sheet: Sustainable Development of Hydropower Initiative More Documents & Publications &#8220;Sustainable development of hydropower in third

  17. Bulk Tritium Shipping Package Overview and Status | Department of Energy

    Office of Environmental Management (EM)

    Energy Clean Energy Partnerships With China and Japan Building Clean Energy Partnerships With China and Japan November 15, 2010 - 12:54pm Addthis Secretary Chu Secretary Chu Former Secretary of Energy This week (November 14th-19th), I will be traveling to China and Japan to meet with government officials, business leaders and others to discuss the opportunities for partnership in clean energy - partnerships that are important to America's economic competitiveness. China and Japan have made

  18. Participants

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Participants Participants The 19th Annual HAZMAT Challenge will take place July 27-31, 2015. Sixteen team slots are available on a first-come, first-served basis, with registration limited to one team per organization. Teams that have registered: Carlsbad Fire Department Clovis Fire Department Gallup Fire Department LANL HAZMAT Nebraska Fire Department Sandia National Laboratory 64th WMD-CST Los Alamos Fire Department City of Santa Fe Fire Department Vendor registration: INFICON TRANSCARER Lee

  19. Microsoft Word - Major end uses front page v2 2015-03-31.docx

    U.S. Energy Information Administration (EIA) Indexed Site

    4 APPENDIX C EIA - Technology Forecast Updates - Residential and Commercial Building Technologies - Reference Case Presented to: U.S. Energy Information Administration Prepared by: Navigant Consulting, Inc. 1200 19th Street, NW, Suite 700 Washington, D.C. 20036 And SAIC 8301 Greensboro Drive McLean, VA 22102 December 19, 2012 Confidential and Proprietary, ©2012 Navigant Consulting, Inc. Do not distribute or copy Final DISCLAIMER This presentation was prepared as an account of work sponsored by

  20. Microsoft Word - Major end uses front page v2 2015-03-31.docx

    U.S. Energy Information Administration (EIA) Indexed Site

    5 APPENDIX D EIA - Technology Forecast Updates - Residential and Commercial Building Technologies - Advanced Case Presented to: U.S. Energy Information Administration Prepared by: Navigant Consulting, Inc. 1200 19th Street, NW, Suite 700 Washington, D.C. 20036 And SAIC 8301 Greensboro Drive McLean, VA 22102 December 19, 2012 Confidential and Proprietary, ©2012 Navigant Consulting, Inc. Do not distribute or copy Advanced Case Final DISCLAIMER This presentation was prepared as an account of work

  1. Standardized Retrofit Packages - What Works to Meet Consistent Levels of Performance: Midwest Energy Efficiency Alliance

    Energy Savers [EERE]

    Building America Webinar Series Standardized Retrofit Packages - What Works to Meet Consistent Levels of Performance: Midwest Energy Efficiency Alliance Scott Yee March 19 th , 2014 1 Midwest Energy Efficiency Alliance (MEEA) Midwest Energy Efficiency Alliance 2 MEEA is a collaborative network whose purpose is to advance energy efficiency to support sustainable economic development and environmental preservation. Partnership for Advanced Residential Retrofit (PARR) Midwest Energy Efficiency

  2. STEAB Teleconference Minutes June 2014

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    June 19 th , 2014 3:30 - 4:00 PM Eastern Time TELECONFERENCE ATTENDEES Designated Federal Officer (DFO): * Julie Hughes, DFO, Sr. Advisor, EERE, DOE. STEAB TELECONFERENCE ATTENDANCE BOARD MEMBERS Present Absent Jeff Ackermann, Director, Colorado Energy Office X Roger Berliner, Council President, Montgomery County Council X Tom Carey, Director, Energy and Rehabilitation Programs, New York State Division of Housing and Community Renewal X William Vaughn Clark, Director, Office of Community

  3. STEAB Teleconference Minutes March 2015

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    March 19 th , 2015 3:30 - 4:06 PM Eastern Time TELECONFERENCE ATTENDEES Designated Federal Officer (DFO): * Monica Neukomm, DFO, Sr. Policy Advisor, EERE, DOE. Contractor Support & Other DOE Staff: * Emily Zuccaro, SRA, International Inc. STEAB TELECONFERENCE ATTENDANCE BOARD MEMBERS Present Absent Jeff Ackermann, Director, Colorado Energy Office X Roger Berliner, Council President, Montgomery County Council X Tom Carey, Director, Energy and Rehabilitation Programs, New York State Division

  4. Production of Butyric Acid and Butanol from Biomass

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Production of Butyric Acid and Butanol from Biomass Final Report Work Performed Under: Contract No.: DE-F-G02-00ER86106 For: U.S. Department of Energy Morgantown, WV By David Ramey Environmental Energy Inc. 1253 N. Waggoner Road P.O. Box 15 Blacklick, Ohio 43004 And Shang-Tian Yang Department of Chemical and Biomolecular Engineering The Ohio State University 140 West 19 th Avenue Columbus, Ohio 43210 - 2004 - Table of Contents Page Proposal Face Page

  5. Workshop Logistics

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Logistics Workshop Logistics Large Scale Computing and Storage Requirements for Advanced Scientific Computing Research January 5-6, 2011 Location The workshop will be held at NERSC's Oakland Scientific Facility (OSF) 415 20th Street (415 Thomas L. Berkeley Way) Oakland CA, 94612 No free parking is available at NERSC. You are urged to take BART to NERSC, since the nearest station (19th Street) is directly across the street from our facility. A map showing locations of nearby parking facilities is

  6. Microsoft Word - DOE News Release-DOE Completes Cleanup at New York California Sites

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DOE Completes Cleanup at New York, California Sites Recovery Act funds accelerate cleanup; support job creation and footprint reduction WASHINGTON, D.C. - Last month, the U.S. Department of Energy completed the cleanup of Cold War legacy waste at the Nuclear Radiation Development, LLC (NRD) site near Grand Island, New York, and at the Lawrence Berkeley National Laboratory in Berkeley, California. The two locations became the 18 th and 19 th sites to be completely cleaned of legacy waste. This

  7. WIPP Mine Rescue Team Sweeps Southeast Missouri Competition

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Team Sweeps Southeast Missouri Competition CARLSBAD, N.M., October 15, 2001 - The Waste Isolation Pilot Plant (WIPP) Blue Mine Rescue Team captured first place in all three categories at the 19 th Annual Southeast Missouri Mine Rescue Competition held October 3-5 at the University of Missouri at Rolla. The WIPP Blue Team outscored mining industry teams from Louisiana, New Mexico, Mississippi and Missouri in the competition, which took place in a mine maintained by the University of Missouri at

  8. Global and regional potential for bioenergy from agricultural and forestry residue biomass

    SciTech Connect (OSTI)

    Gregg, Jay S.; Smith, Steven J.

    2010-02-11

    As co-products, agricultural and forestry residues represent a potential low cost, low carbon, source for bioenergy. A method is developed method for estimating the maximum sustainable amount of energy potentially available from agricultural and forestry residues by converting crop production statistics into associated residue, while allocating some of this resource to remain on the field to mitigate erosion and maintain soil nutrients. Currently, we estimate that the world produces residue biomass that could be sustainably harvested and converted into over 50 EJ yr-1 of energy. The top three countries where this resource is estimated to be most abundant are currently net energy importers: China, the United States (US), and India. The global potential from residue biomass is estimated to increase to approximately 80-95 EJ yr-1 by mid- to late- century, depending on physical assumptions such as of future crop yields and the amount of residue sustainably harvestable. The future market for biomass residues was simulated using the Object-Oriented Energy, Climate, and Technology Systems Mini Climate Assessment Model (ObjECTS MiniCAM). Utilization of residue biomass as an energy source is projected for the next century under different climate policy scenarios. Total global use of residue biomass is estimated to increase to 70-100 EJ yr-1 by mid- to late- century in a central case, depending on the presence of a climate policy and the economics of harvesting, aggregating, and transporting residue. Much of this potential is in developing regions of the world, including China, Latin America, Southeast Asia, and India.

  9. Conference on Nuclear Energy and Science for the 21st Century: Atoms for Peace Plus Fifty - Washington, D.C., October 2003

    SciTech Connect (OSTI)

    Pfaltzgraff, Robert L

    2006-10-22

    This conference's focus was the peaceful uses of the atom and their implications for nuclear science, energy security, nuclear medicine and national security. The conference also provided the setting for the presentation of the prestigious Enrico Fermi Prize, a Presidential Award which recognizes the contributions of distinguished members of the scientific community for a lifetime of exceptional achievement in the science and technology of nuclear, atomic, molecular, and particle interactions and effects. An impressive group of distinguished speakers addressed various issues that included: the impact and legacy of the Eisenhower Administration’s “Atoms for Peace” concept, the current and future role of nuclear power as an energy source, the challenges of controlling and accounting for existing fissile material, and the horizons of discovery for particle or high-energy physics. The basic goal of the conference was to examine what has been accomplished over the past fifty years as well as to peer into the future to gain insights into what may occur in the fields of nuclear energy, nuclear science, nuclear medicine, and the control of nuclear materials.

  10. Swing of the Surgical Pendulum: A Return to Surgery for Treatment of Head and Neck Cancer in the 21st Century?

    SciTech Connect (OSTI)

    Holsinger, F. Christopher Weber, Randal S.

    2007-10-01

    Treatment for head and neck cancer has evolved significantly during the past 100 years. Beginning with Bilroth's total laryngectomy on New Year's Day in 1873, 'radical' surgery remained the only accepted treatment for head and neck cancer when optimal local and regional control was the goal. Bigger was still better when it came to managing the primary tumor and the neck. The 'commando' procedure and radical neck dissection were the hallmarks of this first generation of treatments of head-and-neck cancer. With the advent of microvascular reconstructive techniques, larger and more comprehensive resections could be performed. Despite these large resections and their 'mutilating' sequelae, overall survival did not improve. Even for intermediate-stage disease in head-and-neck cancer, the 5-year survival rate did not improve >50%. Many concluded that more than the scalpel was needed for optimal local and regional control, especially for intermediate- and advanced-stage disease. Most important, the multidisciplinary teams must identify and correlate biomarkers in the tumor and host that predict for a response to therapy and for optimal functional recovery. As the pendulum swings back, a scientific approach using tissue biomarkers for the response to treatment in the setting of multidisciplinary trials must emerge as the new paradigm. In the postgenomic era, treatment decisions should be made based on functional and oncologic parameters-not just to avoid perceived morbidity.

  11. NGVs: Driving to the 21st Century. 17th National Natural Gas Vehicle Conference and Exhibition, October 3-5, 1999 [conference organizational literature and agenda

    SciTech Connect (OSTI)

    1999-10-05

    By attending the conference, participants learn about new and planned OEM vehicle and engine technologies; studies comparing Diesel and gasoline emissions to natural gas; new state and federal legislation; and innovative marketing programs they can use to help sell their products and services.

  12. Impacts of High Resolution Extreme Events on U.S. Energy Demand and CO{sub 2} Emissions in the 21st Century

    SciTech Connect (OSTI)

    Diffenbaugh, Noah

    2013-06-21

    Progress is reported in these areas: Validation of temperature and precipitation extremes; Time of emergence of severe heat stress in the United States; Quantifying the effects of temperature extremes on energy demand and carbon dioxide emissions.

  13. Developing Switchgrass as a Bioenergy Crop

    SciTech Connect (OSTI)

    Bouton, J.; Bransby, D.; Conger, B.; McLaughlin, S.; Ocumpaugh, W.; Parrish, D.; Taliaferro, C.; Vogel, K.; Wullschleger, S.

    1998-11-08

    The utilization of energy crops produced on American farms as a source of renewable fuels is a concept with great relevance to current ecological and economic issues at both national and global scales. Development of a significant national capacity to utilize perennial forage crops, such as switchgrass (Panicum virgatum, L.) as biofuels could benefit our agricultural economy by providing an important new source of income for farmers. In addition energy production from perennial cropping systems, which are compatible with conventional fining practices, would help reduce degradation of agricultural soils, lower national dependence on foreign oil supplies, and reduce emissions of greenhouse gases and toxic pollutants to the atmosphere (McLaughlin 1998). Interestingly, on-farm energy production is a very old concept, extending back to 19th century America when both transpofiation and work on the farm were powered by approximately 27 million draft animals and fueled by 34 million hectares of grasslands (Vogel 1996). Today a new form of energy production is envisioned for some of this same acreage. The method of energy production is exactly the same - solar energy captured in photosynthesis, but the subsequent modes of energy conversion are vastly different, leading to the production of electricity, transportation fuels, and chemicals from the renewable feedstocks. While energy prices in the United States are among the cheapest in the world, the issues of high dependency on imported oil, the uncertainties of maintaining stable supplies of imported oil from finite reserves, and the environmental costs associated with mining, processing, and combusting fossil fuels have been important drivers in the search for cleaner burning fuels that can be produced and renewed from the landscape. At present biomass and bioenergy combine provide only about 4% of the total primary energy used in the U.S. (Overend 1997). By contrast, imported oil accounts for approximately 44% of the foreign trade deficit in the U.S. and about 45% of the total annual U.S. oil consumption of 34 quads (1 quad = 1015 Btu, Lynd et al. 1991). The 22 quads of oil consumed by transportation represents approximately 25% of all energy use in the US and excedes total oil imports to the US by about 50%. This oil has environmental and social costs, which go well beyond the purchase price of around $15 per barrel. Renewable energy from biomass has the potential to reduce dependency on fossil fhels, though not to totally replace them. Realizing this potential will require the simultaneous development of high yielding biomass production systems and bioconversion technologies that efficiently convert biomass energy into the forms of energy and chemicals usable by industry. The endpoint criterion for success is economic gain for both agricultural and industrial sectors at reduced environmental cost and reduced political risk. This paper reviews progress made in a program of research aimed at evaluating and developing a perennial forage crop, switchgrass as a regional bioenergy crop. We will highlight here aspects of research progress that most closely relate to the issues that will determine when and how extensively switchgrass is used in commercial bioenergy production.

  14. Middle to Late Holocene Fluctuations of C3 and C4 Vegetation in a Northern New England Salt Marsh, Sprague Marsh, Phippsburg Maine

    SciTech Connect (OSTI)

    Johnson, B J; Moore, K A; Lehmann, C; Bohlen, C; Brown, T A

    2006-05-26

    A 3.1 meter sediment core was analyzed for stable carbon isotope composition of organic matter and higher plant leaf wax (HPLW) lipid biomarkers to determine Holocene shifts in C{sub 3} (higher high marsh) and C{sub 4} (low and/or high marsh) plant deposition at the Sprague River Salt Marsh, Phippsburg, Maine. The carbon isotope composition of the bulk sediment and the HPLW parallel each other throughout most of the core, suggesting that terrestrial plants are an important source of organic matter to the sediments, and diagenetic alteration of the bulk sediments is minimal. The current salt marsh began to form 2500 cal yr BP. Low and/or high C{sub 4} marsh plants dominated deposition at 2000 cal yr BP, 700 cal yr BP, and for the last 200 cal yr BP. Expansion of higher high marsh C{sub 3} plants occurred at 1300 and 600 cal yr BP. These major vegetation shifts result from a combination of changes in relative sea-level rise and sediment accumulation rates. Average annual carbon sequestration rates for the last 2500 years approximate 40 g C yr{sup -1} m{sup -2}, and are in strong agreement with other values published for the Gulf of Maine. Given that Maine salt marshes cover an area of {approx}79 km{sup 2}, they represent an important component of the terrestrial carbon sink. More detailed isotopic and age records from a network of sediment cores at Sprague Marsh are needed to truly evaluate the long term changes in salt marsh plant communities and the impact of more recent human activity, including global warming, on salt marsh vegetation.

  15. Depositional and erosional coastal processes during the late postglacial sea-level rise: An example from the central Tyrrhenian continental shelf (Italy)

    SciTech Connect (OSTI)

    Tortora, P.

    1996-03-01

    A transgressive systems tract (TST) deposit on the inner continental shelf of the south Tuscany region (central Tyrrhenian Sea, Italy) formed during the last postglacial sea-level rise. Its small-scale stratigraphy has been detailed using high-resolution seismic profiles, gravity cores, and grab samples. The TST deposit overlies a lowstand unconformity, shows a tabular geometry, and comprises three internal architectures of beach facies. Because the lateral distribution of these vertical successions is not random, but parallel to the coast, each architecture represents an individual sedimentary stage during sea-level rise. However, all architectures were formed via shoreface retreat in response to the landward migration of a beach complex over the unconformity. During this migration the beach system was characterized by a source diastem located in the surf zone and by two sediment dispersal systems. One moved the eroded sand over the flat back-barrier palustrine area by storm washover, while the other transported part of this sand to the lower shoreface, forming a reworked sand sheet above the older and inactive source diastem (ravinement surface). The TST architectures originated from a transgressive succession of beach facies, differentiated according to the intensity of shoreface retreat. Architecture A represents a low preservation potential of the original beach complex, Architecture B relatively high preservation, and Architecture C no preservation. The intensity of erosion and the consequent preservation potential were totally controlled by antecedent topography.

  16. Possible flexural mechanisms for origins of extensive, ooid-rich, carbonate environments, middle and early late Mississippian, east-central United States

    SciTech Connect (OSTI)

    Ettensohn, F.R. )

    1989-08-01

    During the earliest Mississippian, much of east-central US was a deep-water black-shale basin formed due to subsidence accompanying Acadian tectonism; by the middle Mississippian, this basin had been transformed into a very shallow epeiric sea characterized by ooid-rich carbonates. This transformation probably occurred in two parts due to flexural mechanisms accompanying the end of the Acadian orogeny and the beginning of the Ouachita orogeny. In the eastern part of the basin, with the end of active Acadian deformational loading, lithospheric relaxation caused uplift and eastward migration of the Acadian peripheral bulge from near the Cincinnati arch into the Appalachian basin. By the middle Meramecian, this uplift and a concomitant infilling of the basin with post-orogenic clastics created an extensive shallow-water platform conducive to ooid deposition well into the Appalachian basin. In western parts of the cratonic black-shale basin, from the western flanks of the Cincinnati arch to the eastern flanks of the Transcontinental arch, any infilling with postorogenic Acadian clastics was minor. However, by the Kinderhook-Osage transition, apparent collision and subduction leading to the Ouachita orogeny had begun, and with the inception of collision, the entire foreland as far north as the Illinois basin was upwarped by the cratonward (north and northeast) migration of the accompany peripheral bulge. As a result, by the early Meramecian, shallow-water conditions favorable for oolitic-carbonate deposition prevailed throughout the area.

  17. QER- Comment of Klinkman Solar Design

    Broader source: Energy.gov [DOE]

    Ms. Wayland, I sincerely hope that your QER efforts will display more vision and practical forward movement than we have previously seen. I would so much like to see my country at the forefront of 21st century energy development rather than, as now, stuck in the same old fossil fuel/nuclear mire. The lack of innovation in our time is connected with the corporate takeover of industry, government and academia. Independent inventors, like my own husband, Paul Klinkman, are ignored. Only those with ties to a powerful corporation or prestigious university even have a chance of getting their ideas considered. Renewable energy, especially, has been stifled by special interests since the late 1970s. (I know this well, having served as Research Associate for an energy organization during that period. Many promising inventions during that time were unnoticed or bought up and deep-sixed to protect the status quo).

  18. Deformation Quantization: Quantum Mechanic Lives and Works in Phase-Space

    SciTech Connect (OSTI)

    Zachos, Cosmas (Argonne National Laboratory) [Argonne National Laboratory

    2001-08-01

    Wigner's 1932 quasi-probability Distribution Function in phase-space is a special (Weyl) representation of the density matrix. It has been useful in describing quantum flows in: quantum optics; nuclear physics; decoherence (eg, quantum computing); quantum chaos; 'Welcher Weg' discussions; semiclassical limits. It is also of importance in signal processing. Nevertheless, a remarkable aspect of its internal logic, pioneered by the late Moyal, has only emerged in the last quarter-century: It furnishes a third, alternate, formulation of Quantum Mechanics, independent of the conventional Hilbert Space, or Path Integral formulations. It is logically complete and self-standing, and accommodates the uncertainty principle in an unexpected manner. Simple illustrations of this fact will be detailed.

  19. Design of underwater superoleophobic TiO{sub 2} coatings with additional photo-induced self-cleaning properties by one-step route bio-inspired from fish scales

    SciTech Connect (OSTI)

    Wang, Hao; Guo, Zhiguang

    2014-05-05

    Self-cleaning properties inspired by the structures and functions of some creatures are of great interest since the late 20th century. In this paper, TiO{sub 2} coatings with hierarchical rutile TiO{sub 2} flowers on fluorine-doped tin oxide substrate are fabricated through a simple one-step hydrothermal method. The flower-like coatings exhibit superhydrophilicity in air and superoleophobicity underwater with a contact angle as high as 157°, presenting good underwater self-cleaning performance. In addition, when contaminated by oleic acid, the as-prepared TiO{sub 2} coatings also exhibit excellent photocatalytic capability under ultraviolet irradiation, which demonstrated self-cleaning properties in a different way. This self-cleaning film provides a good strategy for some industrial and ocean applications.

  20. Oak Ridge Reservation site evaluation report for the Advanced Neutron Source

    SciTech Connect (OSTI)

    Sigmon, B.; Heitzman, A.C. Jr.; Morrissey, J. )

    1990-03-01

    The Advanced Neutron Source (ANS) is a research reactor that is the US Department of Energy (DOE) plans to build for initial service late in this century. The primary purpose of the ANS is to provide a useable neutron flux for scattering experiments 5 to 10 times as a high as that generated by any existing research reactor, secondary purposes include production of a variety of transuranic and other isotopes and irradiation of materials. The ANS is proposed to be located on the DOE Oak Ridge Reservation (ORR) at Oak Ridge, Tennessee, and operated by the Oak Ridge National Laboratory (ORNL). This report documents the evaluation of alternative sites on the ORR and the selection of a site for the ANS.

  1. 2000s | OSTI, US Dept of Energy, Office of Scientific and Technical

    Office of Scientific and Technical Information (OSTI)

    Information 2000s To view OSTI Historical Photo Gallery, you can browse the collections below. 1940s | 1950s | 1960s | 1970s | 1980s | 1990s 2009: Superconductivity 2009: Dr. Warnick, Office of Scientific and Technical Information, Home of Science.gov 2009: Visitors 2009: Science.gov AAAS 2003 Kent Smith; Valerie Allen and Walt Warnick, Science.gov Host Site (U.S. Department of Energy, Office of Scientific and Technical Information); Eleanor Frierson; Tom Lahr 2009: 19th ETDE Technical

  2. Clean Energy Ministerial Press Fact Sheet | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Clean Energy Ministerial Press Fact Sheet Clean Energy Ministerial Press Fact Sheet On July 19th and 20th in Washington, D.C., ministers from 24 governments participated in the first-ever Clean Energy Ministerial, launching 11 new initiatives to accelerate the global transition to clean energy. These initiatives will avoid the need to build more than 500 mid-sized power plants in the next 20 years, promote the rapid deployment of electric vehicles, support the growing global market for renewable

  3. Searches for Light New Physics at BaBar (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Conference: Searches for Light New Physics at BaBar Citation Details In-Document Search Title: Searches for Light New Physics at BaBar Authors: Echenard, Bertrand ; /Caltech Publication Date: 2013-03-06 OSTI Identifier: 1074245 Report Number(s): SLAC-REPRINT-2013-001 DOE Contract Number: AC02-76SF00515 Resource Type: Conference Resource Relation: Journal Name: AIP Conf.Proc.1441:491-493,2012; Conference: 19th International Conference on Particles and Nuclei (PANIC 11), 24-29 Jul 2011. Cambridge,

  4. DOE Completes Cleanup at New York, California Sites | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cleanup at New York, California Sites DOE Completes Cleanup at New York, California Sites July 1, 2011 - 12:00am Addthis WASHINGTON, D.C. - Last month, the U.S. Department of Energy completed the cleanup of Cold War legacy waste at the Nuclear Radiation Development, LLC (NRD) site near Grand Island, New York, and at the Lawrence Berkeley National Laboratory in Berkeley, California. The two locations became the 18th and 19th sites to be completely cleaned of legacy waste. This milestone was

  5. Owens Corning

    Energy Savers [EERE]

    OWENS CORNING GOVERNMENT AND PUBLIC AFFAIRS 900 19 TH STREET N.W. SUITE 250 WASHINGTON, DC 20006 202.639.6900 FAX: 202.639.0247 OWENS CORNING September 20, 2013 By email: expartecommunications@hq.doe.gov Daniel Cohen Assistant General Counsel for Legislation and Regulatory Law Office of General Counsel Department of Energy 1000 Independence Ave., SW Washington DC 20585-0121 RE: Ex Parte Memo Dear Mr. Cohen: On Thursday, August 29, 2013, Julian Francis, VP & Managing Director Residential

  6. Effects of High Shock Pressures and Pore Morphology on Hot Spot Mechanisms

    Office of Scientific and Technical Information (OSTI)

    in HMX (Conference) | SciTech Connect Effects of High Shock Pressures and Pore Morphology on Hot Spot Mechanisms in HMX Citation Details In-Document Search Title: Effects of High Shock Pressures and Pore Morphology on Hot Spot Mechanisms in HMX Authors: Springer, H K ; Tarver, C M ; Bastea, S Publication Date: 2015-08-20 OSTI Identifier: 1240059 Report Number(s): LLNL-CONF-676480 DOE Contract Number: AC52-07NA27344 Resource Type: Conference Resource Relation: Conference: Presented at: 19th

  7. Secretary Chu to Host Secretary of Energy Advisory Board Meeting |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy January 19, 2011 - 12:00am Addthis Washington, DC - On Thursday, January 20, 2011, U.S. Energy Secretary Steven Chu will host the second meeting of the Secretary of Energy Advisory Board (SEAB). The first meeting of the New Year will focus on the importance of innovation in maintaining global competitiveness. Secretary Chu will begin his remarks at 9:30 AM. Media wishing to attend should contact Niketa Kumar at Niketa.kumar@hq.doe.gov by Wednesday, January 19th by 5 p.m.

  8. A New Proposal to the High Intensity Gamma-Ray Source (HIS) PAC-09

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A New Proposal to the High Intensity Gamma-Ray Source (HIS) PAC-12 Cross Section Measurements for 94 Mo(,n) 93 Mo - Key Photonuclear Reaction for Understanding the Origin of p-Nuclei A. Banu (Spokesperson), B. Glassman, D. Votaw James Madison University, Department of Physics and Astronomy, Harrisonburg, VA 22801, USA C. Travaglio INAF - Astronomical Observatory Turin, Italy and B2FH - Association - Turin, Italy October 19 th , 2012 2 1. Experiment Summary The proposed research aims to

  9. Northern New Mexico Citizens' Advisory Board Meeting

    Office of Environmental Management (EM)

    8, 2015 1:00 p.m. to 5:15 p.m. Cities of Gold Conference Center 10-A Cities of Gold Road Pojoaque, New Mexico 87506 AGENDA Time Action Presenter 1:00 p.m. Call to Order Lee Bishop, DDFO Establishment of a Quorum (9 needed) a. Roll Call William Alexander b. Excused Absences Welcome and Introductions Doug Sayre, Chair Approval of Agenda Approval of Minutes of November 19 th and December 10 th 1:15 p.m. Old Business a. Written Reports - See Packet Enclosures (5 minutes) b. Other items 1:30 p.m. New

  10. Holocene Paleohydrology of the tropical andes from lake records

    SciTech Connect (OSTI)

    Abbott, M. B., LLNL

    1997-03-03

    Two century-scale time series in northern Bolivia constrain the ages of abrupt changes in the physical, geochemical, and biological characteristics of sediments obtained from lakes that formed during deglaciation from the late Pleistocene glacial maximum. The watersheds of Laguna Viscachani (16{degrees}12`S, 68{degrees}07`W, 3780m) and Lago Taypi Chaka Kkota (16{degrees}13`S, 68{degrees}21`W, 4300m), located on the eastern and western slopes of the Cordillera Real, respectively, contain small cirque glaciers. A high-resolution chronology of the lake sediments is provided by 23 AMS {sup 14}C dates of discrete macro-fossils. Late Pleistocene glaciers retreated rapidly, exposing the lake basins between 10,700 and 9700 {sup 14}C yr B.P. The sedimentary facies suggest that after 8900 {sup 14}C B.P. glaciers were absent from the watersheds and remained so during the middle Holocene. An increase in the precipitation-evaporation balance is indicated above unconformities dated to about 2300 {sup 14}C yr B.P. in both Lago Taypi Chaka Kkota and Laguna Viscachani. An abrupt increase in sediment accumulation rated after 1400 {sup 14}C yr B.P. signals the onset of Neoglaciation. A possible link exists between the observed millennial-scale shifts in the regional precipitation- evaporation balance and seasonal shifts in tropical insolation.

  11. Response of snow-dependent hydrologic extremes to continued global warming

    SciTech Connect (OSTI)

    Diffenbaugh, Noah; Scherer, Martin; Ashfaq, Moetasim

    2012-01-01

    Snow accumulation is critical for water availability in the Northern Hemisphere1,2, raising concern that global warming could have important impacts on natural and human systems in snow-dependent regions1,3. Although regional hydrologic changes have been observed (for example, refs 1,3 5), the time of emergence of extreme changes in snow accumulation and melt remains a key unknown for assessing climate- change impacts3,6,7. We find that the CMIP5 global climate model ensemble exhibits an imminent shift towards low snow years in the Northern Hemisphere, with areas of western North America, northeastern Europe and the Greater Himalaya showing the strongest emergence during the near- termdecadesandat2 Cglobalwarming.Theoccurrenceof extremely low snow years becomes widespread by the late twenty-first century, as do the occurrences of extremely high early-season snowmelt and runoff (implying increasing flood risk), and extremely low late-season snowmelt and runoff (implying increasing water stress). Our results suggest that many snow-dependent regions of the Northern Hemisphere are likely to experience increasing stress from low snow years within the next three decades, and from extreme changes in snow-dominated water resources if global warming exceeds 2 C above the pre-industrial baseline.

  12. Boston Architectural College Urban Sustainability Initiative

    SciTech Connect (OSTI)

    Byers, Arthur C.

    2013-07-31

    The Boston Architectural College's Urban Sustainability initiative is a demonstration project as defined by the National Energy Technology Laboratory. BAC's proposed project with the U.S. Department of Energy - NETL, is a large part of that overall initiative. The BAC's Urban Sustainability Initiative is a multi-part project with several important goals and objectives that will have a significant impact on the surrounding neighborhood including: energy conservation, reduction of storm water runoff, generation of power through alternative energy sources, elimination/reduction of BAC carbon footprint, and to create a vehicle for ongoing public outreach and education. Education and outreach opportunities will serve to add to the already comprehensive Sustainability Design courses offered at BAC relative to energy savings, performance and conservation in building design. At the finish of these essential capital projects there will be technical materials created for the education of the design, sustainability, engineering, community development and historic preservation communities, to inform a new generation of environmentally-minded designers and practitioners, the city of Boston and the general public. The purpose of the initiative, through our green renovations program, is to develop our green alley projects and energy saving renovations to the BAC physical plant, to serve as a working model for energy efficient design in enclosed 19th century and 20th century urban sites and as an educational laboratory for teaching ecological and sustainable technologies to students and the public while creating jobs. The scope of our project as it relates to the BAC and the U.S. Department of Energy- NETL combined efforts includes: Task I of the project is Phase II (Green Alley). Task I encompasses various renovation activities that will demonstrate the effectiveness of permeable paving and ground water recharge systems. It will aid in the reduction of storm water runoff into the Charles River Basin in one of its most significantly polluted sections and, will provide a green renovation mechanism for the redirected storm water of a public alley way. This activity is designed to improve the quality of water recharging the ground water and protecting the vulnerable wood pilings under many of the historic masonry buildings in Boston's Back Bay. Sustainable design research and system monitoring opportunities will also be incorporated, providing ongoing tools for public outreach and education through innovative signage and "virtual tour" technology. The monitoring will include a "building performance dash board" that reflects real time operating conditions and improvements in environmental and economic performance to be prominently displayed on the face of our 320 Newbury Street building (approximately 1.5 million people walk by annually). The project site and demonstration area is located at the rear of 951 Boylston Street, Boston, MA 02115 and the parking area adjacent to Public Alley #444 in Boston's historic Back Bay. Task II of the project is Geothermal Solution. This task involves the installation of approximately seven Geothermal wells which will tap into the earth's constant underground temperatures to provide air-conditioning and heating for BAC facilities. The environmentally friendly geothermal system uses no fossil fuel, produces no emissions and runs silently, providing a sustainable model for commercial and residential buildings throughout Boston. Ultimately the combination of this project and other projects will assist in making the BAC "carbon-neutral", and could generate enough additional energy to provide free power to the Engine 33 and Ladder 15 Firehouse located at 941 Boylston Street. The project is located at the rear of 951 Boylston Street, Boston, MA 02115 and the parking area adjacent to Public Alley #444 in Boston's historic Back Bay. Task III of the project is the Sustainability Design Curriculum at the BAC. The BAC is the nation’s largest independent, multi-disciplinary college of spatial design, and a leader in sustainable design education. The Sustainabiltiy Design program, in particular, focuses on energy efficiency,energy performance, energy modeling, energy and air quality principles, green building, renewable energy alternatives and much more. Additionally, the Urban Sustainability Initiative has an objective of providing courses relative to the BAC's demonstration project with DOE, the project’s period of performance activities, subsequent performance data and anticipated sustainability teaching tools. In keeping with BAC's practice based curriculum, students have been involved in the discussion and planning of this project since its inception and sustainability issues have become a part of other programs throughout the college as well. Students will continue to benefit from this hands-on learning opportunity. The project is located at 320 Newbury Street Boston, MA 02115. Task IV of the project is Program Management and Reporting. This task will involve BAC's oversight and general management of the entire project including subcontract administration, contracts administration, technical and financial reporting, design and renovation assistance, other deliverables in accordance with the Federal Assistance reporting Checklist and other contractual obligations and provisions.

  13. VersiCharge-SG - Smart Grid Capable Electric Vehicle Supply Equipment (EVSE) for Residential Applications

    SciTech Connect (OSTI)

    Wei, Dong; Haas, Harry; Terricciano, Paul

    2015-09-30

    In his 2011 State of the Union address, President Obama called for one million electric vehicles on the road by 2015 [1]. With large-scale Electric Vehicle (EV) or Plug-in Electric Vehicle (PEV or EV for short) or Plug-in Hybrid Electric Vehicle (PHEV) penetration into the US market, there will be drastic reduction in fossil fuel consumption, thus significantly reducing our dependency on foreign oil [2-6]. There will also be significant reduction on Green House Gas (GHG) emissions and smog in the major US cities [3, 7, 8]. Similar studies have also been done other industrial counties [9]. For the fuel cost, with the home electricity rate around $0.13 per kWh, it would cost about $0.05 per mile for DC operation and $0.03 cents per mile for AC operation. But, assuming 25 miles per gallon for a typical vehicle and $4 per gallon, fossil fuel will cost $0.16 per mile [10]. The overall lifecycle cost of PEVs will be several folds lower than the existing fossil fueled vehicles. Despite the above advantages of the EVs, the current cost of EVSE is not affordable for the average consumer. Presently, the cost of installing state-of-the-art residential EVSE ranges from $1500 to $2500 [11]. Low priced EVSE technology, which is easy to install, and affordable to operate and maintain by an average consumer, is essential for the large-scale market penetration of EVs. In addition, the long-term success of this technology is contingent on the PEVs having minimal excessive load and shift impact on the grid, especially at peak times. In a report [2] published by the Pacific Northwest National Laboratory (PNNL), the exiting electric power generation infrastructure, if used at its full capacity 24 hours a day, would support up to 84% of the nation’s cars, pickup trucks and SUVs for an average daily drive of 33 miles. This mileage estimate is certainly much below what an average driver would drive his/her vehicle per day. Another report [3] by the National Renewable Energy Laboratory (NREL) shows that an increased PEV penetration would significantly increase pressure on the peak generation, if no controlled charging strategy was put in place. Investigations from Oak Ridge National Laboratory (ORNL) show that in many regions, additional power generation facilities must be put in place and operate in evening times to recharge the EVs [12]. By all accounts, large PEV penetration will bring to the power grid enormous challenges due to the excessive and stochastic demand, and can entirely change the peak time distribution and behavior, perhaps, into a bi-modal distribution capable of exhausting primary, secondary and even reserves (spinning or non-spinning). To minimize the infrastructure upgrade costs and risks to the grid, and to ensure that power quality and reliability remain within the set standards, the demand for EV plug-ins must then be controlled and coordinated locally and at regional levels. Novel control techniques must be devised to allow for close collaboration between neighboring plug-in requestors, between neighboring communities, and between these and more central power authorities. The concept of electric drive vehicle is not new. The development of electric vehicle has been around since 19th century [13]. But due to a number of reasons and practical limitations at the time, including lower cost of gasoline compared to electricity, excessive refueling times, and abundance of gasoline, the automobile industry embraced gasoline-powered vehicles worldwide [13]. With the global warming, ever reducing reservoirs of fossil oil around the world and increasing political pressure to reduce the national dependency on foreign oil, the last decade of the 20th century witnessed major technological breakthroughs in Alternative Fueled Vehicle (AFV) technologies, including electric vehicles. With GHG emissions and carbon footprint in the minds of many more consumers and politicians, the first decade of the 21stCentury witnessed more breakthroughs with some real life experimentation and sporadic deployment of these technologies [14]. By many accounts, the second decade of the 21st Century is expected to be the time when mass volume production and popular usage of these AFV technologies, especially EV, will materialize. The current DOE request for proposals recognizes the need for major technological changes to ensure that the above national goal is realizable. Two major challenges have been identified: (1) major reduction in the cost of ownership of EVSEs, and (2) managing additional EV loads in the power grid while maintaining power quality, reliability, and affordability. We note that the two challenges are closely linked – A holistic approach to true lifecycle cost of EVSE ownership will certainly include any taxes and surcharges that can be put in place for major potential investments in the grid, and higher electricity charges in case of more frequent and longer peak periods. From a societal perspective, this cost could also include the lost GDP (computed on a local basis) and revenue for businesses at local and regional levels when the grid is no longer capable of meeting the demand and unexpected outages occur. A typical end-point electrical distribution system delivers power to a residential EVSE from the neighborhood distribution pole, as shown in Fig.1. This pole has a transformer (neighboring step-down transformer) that steps down the utility medium voltage to dual 120VAC single phase (also called 240VAC split phase). This voltage is fed through a meter into the residential load control center. The load control center consists of branch circuit breakers and distributes the power supply within various areas of the residential unit. One of the branch circuits from the load control center feeds EV charging station for the unit. An electric vehicle charger is plugged into the socket of the EV charging station and other end of this charger is connected to the vehicle during charging. Figure 1 illustrates a typical configuration of the power grid. The left side of the figure shows the power grid from the power generation to the neighboring step-down transformer, while the right side of the figure shows multiple EVs with the respective charging stations. The typical step-down transformer has an upper limit representing the maximum load that can be requested from these neighboring houses altogether (typically 24 kW). In case the total load increases beyond the supported limit, the protection system (e.g. a circuit breaker) attached to the step-down transformer gets activated automatically.

  14. Final report to the Department of Energy: Green Schools Project DE-FC01-99EE10685. Schools for the 21st century: Transferring the Green Schools experience

    SciTech Connect (OSTI)

    Harrigan, Merrilee

    2002-01-15

    This report describes five major activities that the Alliance to Save Energy performed for the years 2000 and 2001 to support and compliment DOE's Energy Smart Schools Partnership. The major tasks under this project were to: (1) Promote the School Efficiency Peer Exchange program for school personnel; (2) develop the Earth Apple Awards program and disseminate the best award-winning ideas; (3) link Green Schools with Rebuilt with at least one metropolitan area such as Philadelphia or Buffalo; (4) support Rebuild/Energy Smart Schools through working at the state level to develop business, state, and local government and through making presentations in support of school efficiency; (5) update the curriculum search originally conducted in 1995.

  15. Energy - Water Nexus -- Meeting the Energy and Water Needs of the Snake/Columbia River Basin in the 21st CenturyScience and Technology SummitConference Results

    SciTech Connect (OSTI)

    Paul L. Wichlacz; Gerald Sehlke

    2008-02-01

    In June 2007, representatives from federal, state, and academic institutions met to discuss the role of innovative science, technology, and policy in meeting future energy and water demands in the Snake-Columbia River Basin. Conference members assessed the state-of-the-science, technology, and associated research to develop cost-effective and environmentally sound methodologies and technologies to maximize the production of energy and availability of water and to minimize the consumption of both water and energy in the Snake-Columbia River system. Information on all phases of science and technology development, theoretical analysis, laboratory experiments, pilot tests, and field applications were relevant topics for discussion. An overview of current management needs was presented the first day. On the second day, five focus groups were created: ? Energy Generation and Use ? Water Allocation and Use ? Energy/Water Storage ? Environmental Considerations ? Social, Economic, Political, and Regulatory Considerations. Each group started with a list of status items and trends, and discussed the future challenges and research needed to reach four goals: ? Balance energy production and resource consumption ? Balance water availability and competing needs ? Balance water consumption/energy production and competing needs ? Balance environmental impacts and water use/energy production ? Balance costs and benefits of water use. The resulting initiatives were further broken down into three categories of importance: critical, important, and nice to do but could be delayed. Each initiative was assigned a number of dots to show a more refined ranking. The results of each focus group are given in the pages that follow. These results are intended to help local and regional researchers 1. Develop a technical strategy for developing cost-effective science and technology to predict, measure, monitor, purify, conserve, and store water and to maximize power generation, storage, and efficiency in the region 2. Evaluate methods and technologies for reducing the impacts of energy and water development and use on the environment.

  16. Microsoft PowerPoint - lindenbery_armstmeet04.html

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    - Meeting 2004 Lindenberg Observatory GERMANY Dirk.Engelbart@dwd.de From Weather Kites From Weather Kites to to Windprofilers Windprofilers : : A A Century Century of of...

  17. Transactions of the nineteenth water reactor safety information meeting

    SciTech Connect (OSTI)

    Weiss, A.J.

    1991-10-01

    This report contains summaries of papers on reactor safety research to be presented at the 19th Water Reactor Safety Information Meeting at the Bethesda Marriott Hotel in Bethesda, Maryland, October 28--30, 1991. The summaries briefly describe the programs and results of nuclear safety research sponsored by the Office of Nuclear Regulatory Research, USNRC. Summaries of invited papers concerning nuclear safety issues from US government laboratories, the electric utilities, the Electric Power Research Institute (EPRI), the nuclear industry, and from the governments and industry in Europe and Japan are also included. The summaries have been compiled in one report to provide a basis for meaningful discussion and information exchange during the course of the meeting, and are given in the order of their presentation in each session. The individual summaries have been cataloged separately.

  18. SPECKLE INTERFEROMETRY AT THE U.S. NAVAL OBSERVATORY. XIX

    SciTech Connect (OSTI)

    Mason, Brian D.; Hartkopf, William I.; Hurowitz, Haley M. E-mail: wih@usno.navy.mil

    2013-09-15

    The results of 2916 intensified CCD observations of double stars, made with the 26 inch refractor of the U.S. Naval Observatory, are presented. Each observation of a system represents a combination of over two thousand short-exposure images. These observations are averaged into 1584 mean relative positions and range in separation from 0.''54 to 98.''09, with a median separation of 11.''73. This is the 19th in this series of papers and covers the period 2012 January 5 through 2012 December 18. Also presented are 10 pairs that are reported for the first time, 17 pairs that appear to be lost, linear elements for 18 pairs, and orbital elements for 2 additional pairs.

  19. Urenco centrifuge and laser development

    SciTech Connect (OSTI)

    Upson, P.C.

    1994-12-31

    The Urenco centrifuge process for the enrichment of uranium is now well developed and economically proven. The centrifuge technology that forms the basis of Urenco`s plants in the United Kingdom, the Netherlands, and Germany has evolved steadily over the last two decades since the Urenco partnership was formed, and current programs of development will see this progress continue into the next century. From the early pilot plant work, the first generation of machines was installed and commissioned in the late 1970s in the U.K. and Netherlands plants. These have both significantly exceeded the original design expectation with respect to both stress lifetime and corrosion resistance. The early U.K. plant was shut down in 1992, again well beyond the expected 10-yr lifetime, while the Netherlands plant is still operating. Since then, significant advances have been made, and a fourth-generation machine began operation in the plants in 1991; in fact, Urenco has all four generations still in operation in its plants today. Urenco`s research on laser isotope separation is also described.

  20. Is the northern high latitude land-based CO2 sink weakening?

    SciTech Connect (OSTI)

    Mcguire, David; Kicklighter, David W.; Gurney, Kevin R; Burnside, Todd; Melillo, Jerry

    2011-01-01

    Studies indicate that, historically, terrestrial ecosystems of the northern high latitude region may have been responsible for up to 60% of the global net land-based sink for atmospheric CO2. However, these regions have recently experienced remarkable modification of the major driving forces of the carbon cycle, including surface air temperature warming that is significantly greater than the global average and associated increases in the frequency and severity of disturbances. Whether arctic tundra and boreal forest ecosystems will continue to sequester atmospheric CO2 in the face of these dramatic changes is unknown. Here we show the results of model simulations that estimate a 41 Tg C yr-1 sink in the boreal land regions from 1997 to 2006, which represents a 73% reduction in the strength of the sink estimated for previous decades in the late 20th Century. Our results suggest that CO2 uptake by the region in previous decades may not be as strong as previously estimated. The recent decline in sink strength is the combined result of 1) weakening sinks due to warming-induced increases in soil organic matter decomposition and 2) strengthening sources from pyrogenic CO2 emissions as a result of the substantial area of boreal forest burned in wildfires across the region in recent years. Such changes create positive feedbacks to the climate system that accelerate global warming, putting further pressure on emission reductions to achieve atmospheric stabilization targets.

  1. WIND SPEED AND ATMOSPHERIC STABILITY TRENDS FOR SELECTED UNITED STATES SURFACE STATIONS

    SciTech Connect (OSTI)

    Buckley, R; Allen H. Weber, A

    2006-11-01

    Recently it has been suggested that global warming and a decrease in mean wind speeds over most land masses are related. Decreases in near surface wind speeds have been reported by previous investigators looking at records with time spans of 15 to 30 years. This study focuses on United States (US) surface stations that have little or no location change since the late 1940s or the 1950s--a time range of up to 58 years. Data were selected from 62 stations (24 of which had not changed location) and separated into ten groups for analysis. The group's annual averages of temperature, wind speed, and percentage of Pasquill-Gifford (PG) stability categories were fitted with linear least squares regression lines. The results showed that the temperatures have increased for eight of the ten groups as expected. Wind speeds have decreased for nine of the ten groups. The mean slope of the wind speed trend lines for stations within the coterminous US was -0.77 m s{sup -1} per century. The percentage frequency of occurrence for the neutral (D) PG stability category decreased, while that for the unstable (B) and the stable (F) categories increased in almost all cases except for the group of stations located in Alaska.

  2. Superfund record of decision (EPA Region 2): Love Canal, Niagara Falls, New York, October 1987. Second remedial action

    SciTech Connect (OSTI)

    Not Available

    1987-10-26

    The Love Canal site is located in the southeast corner of the city of Niagara Falls and is approximately one-quarter mile north of the Niagara River. The canal was one of two initial excavations designed to provide inexpensive hydroelectric power for industrial development around the turn of the 20th century. Hooker Chemicals and Plastics Corporation (Hooker), now Occidental Chemical Corporation, disposed of over 21,000 tons of chemical wastes, including dioxin-tainted trichlorophenols, into Love Canal between 1942 and 1953. In the mid to late 1970s, continued periods of high precipitation contributed to water accumulation in the disposal area causing chemically-contaminated leachate to be carried to the surface and into contact with residential-basement foundations. Also, dioxin and other contaminants migrated from Love Canal to the sewers which have outfalls to nearby creeks. The remedial program at Love Canal has been extensive and has occurred in two phases. Approximately 30,400 cu yd - 40,900 cu yd of creek and sewer sediments are contaminated with 2,3,7,8-tetrachlorodibenzo-p-dioxin, commonly referred to as dioxin.

  3. Towards Direct Simulation of Future Tropical Cyclone Statistics in a High-Resolution Global Atmospheric Model

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Wehner, Michael F.; Bala, G.; Duffy, Phillip; Mirin, Arthur A.; Romano, Raquel

    2010-01-01

    We present a set of high-resolution global atmospheric general circulation model (AGCM) simulations focusing on the model's ability to represent tropical storms and their statistics. We find that the model produces storms of hurricane strength with realistic dynamical features. We also find that tropical storm statistics are reasonable, both globally and in the north Atlantic, when compared to recent observations. The sensitivity of simulated tropical storm statistics to increases in sea surface temperature (SST) is also investigated, revealing that a credible late 21st century SST increase produced increases in simulated tropical storm numbers and intensities in all ocean basins. Whilemore » this paper supports previous high-resolution model and theoretical findings that the frequency of very intense storms will increase in a warmer climate, it differs notably from previous medium and high-resolution model studies that show a global reduction in total tropical storm frequency. However, we are quick to point out that this particular model finding remains speculative due to a lack of radiative forcing changes in our time-slice experiments as well as a focus on the Northern hemisphere tropical storm seasons.« less

  4. Application for presidential permit OE Docket No. PP-230-4 Internation...

    Office of Environmental Management (EM)

    Late Motion to Intervene of New York Transmission Owners Application for presidential permit OE Docket No. PP-230-4 International Transmission Company: Response to Late Motion to ...

  5. Assessment of Summer 1997 Motor Gasoline Price Increase

    Reports and Publications (EIA)

    1998-01-01

    Assesses the 1997 late summer gasoline market and some of the important issues surrounding that event.

  6. New York Marcellus Shale: Industry boom put on hold

    SciTech Connect (OSTI)

    Mercurio, Angelique

    2012-01-16

    Key catalysts for Marcellus Shale drilling in New York were identified. New York remains the only state in the nation with a legislative moratorium on high-volume hydraulic fracturing, as regulators and state lawmakers work to balance the advantages of potential economic benefits while protecting public drinking water resources and the environment. New York is being particularly careful to work on implementing sufficiently strict regulations to mitigate the environmental impacts Pennsylvania has already seen, such as methane gas releases, fracturing fluid releases, flowback water and brine controls, and total dissolved solids discharges. In addition to economic and environmental lessons learned, the New York Department of Environmental Conservation (DEC) also acknowledges impacts to housing markets, security, and other local issues, and may impose stringent measures to mitigate potential risks to local communities. Despite the moratorium, New York has the opportunity to take advantage of increased capital investment, tax revenue generation, and job creation opportunities by increasing shale gas activity. The combination of economic benefits, industry pressure, and recent technological advances will drive the pursuit of natural gas drilling in New York. We identify four principal catalysts as follows: Catalyst 1: Pressure from Within the State. Although high-volume hydraulic fracturing has become a nationally controversial technology, shale fracturing activity is common in every U.S. state except New York. The regulatory process has delayed potential economic opportunities for state and local economies, as well as many industry stakeholders. In 2010, shale gas production accounted for $18.6 billion in federal royalty and local, state, and federal tax revenues. (1) This is expected to continue to grow substantially. The DEC is under increased pressure to open the state to the same opportunities that Alabama, Arkansas, California, Colorado, Kansas, Louisiana, Montana, New Mexico, North Dakota, Ohio, Oklahoma, Pennsylvania, South Dakota, Texas, Utah, West Virginia, and Wyoming are pursuing. Positive labor market impacts are another major economic draw. According to the Revised Draft SGEIS on the Oil, Gas and Solution Mining Regulatory Program (September 2011), hydraulic fracturing would create between 4,408 and 17,634 full-time equivalent (FTE) direct construction jobs in New York State. Indirect employment in other sectors would add an additional 29,174 FTE jobs. Furthermore, the SGEIS analysis suggests that drilling activities could add an estimated $621.9 million to $2.5 billion in employee earnings (direct and indirect) per year, depending upon how much of the shale is developed. The state would also receive direct tax receipts from leasing land, and has the potential to see an increase in generated indirect revenue. Estimates range from $31 million to $125 million per year in personal income tax receipts, and local governments would benefit from revenue sharing. Some landowner groups say the continued delay in drilling is costing tens of thousands of jobs and millions of dollars in growth for New York, especially in the economically stunted upstate. A number of New York counties near Pennsylvania, such as Chemung, NY, have experienced economic uptick from Pennsylvania drilling activity just across the border. Chemung officials reported that approximately 1,300 county residents are currently employed by the drilling industry in Pennsylvania. The Marcellus shale boom is expected to continue over the next decade and beyond. By 2015, gas drilling activity could bring 20,000 jobs to New York State alone. Other states, such as Pennsylvania and West Virginia, are also expected to see a significant increase in the number of jobs. Catalyst 2: Political Reality of the Moratorium. Oil and gas drilling has taken place in New York since the 19th century, and it remains an important industry with more than 13,000 currently active wells. The use of hydraulic fracturing in particular has been employed for decades. Yet, as technological advancements have enabled access to gas in areas where drilling is not common practice, public concern has ballooned. Opponents argue that more oversight is necessary to protect the environment and public health, while supporters believe the industry is already adequately regulated. Although it is important for New York to complete a thorough environmental and regulatory review, an extended ban could lead to litigation by property owners who have been stripped of the ability to lease their mineral rights. Other states are moving forward by implementing legislative guidelines or rules created by commissions to ensure that resources are developed safely. One of the most controversial issues in other states to date has revolved around the public disclosure of chemical additives in drilling fluid. While the industry is hesitant to reveal trade secrets, the public and many officials want the security of knowing what chemicals are pumped into the ground. Industry transparency could help mitigate the public concern and controversy that is delaying a lift of the moratorium. Currently, at least five other states have set chemical disclosure rules. Arkansas, Michigan, Montana, Texas, and Wyoming require disclosure of the chemical components of drilling fluid. Colorado has the most stringent rules, requiring not just the disclosure of the additives but of their concentrations as well. As more states continue to allow hydraulic fracturing, New York will likely lift the moratorium and instead implement more stringent regulations that help to alleviate public concern surrounding hydraulic fracturing. This will allow the state to safely pursue the expansive opportunities offered by the Marcellus shale without falling behind economically. Catalyst 3: Energy and Infrastructure Benefits. Natural gas provides a key source of energy in the Northeast. The DEC estimates the Marcellus shale gas resource potential to be between 168-516 Tcf. Even at the low end of this range, Marcellus alone could supply seven years of total U.S. energy consumption, and it would provide a local resource for New York. One report suggests that savings from lower natural gas costs would result in an average annual savings of $926 per household. (4) Industry growth is leading to lower natural gas and electric power prices, while decreasing reliance on Liquid Natural Gas (LNG) imports and enhancing domestic energy security. This makes development of the resources an even more attractive commitment to New York. In addition, the natural gas business is predominantly regional in scope. Drilling companies would be required to build new pipelines for gas development in New York, therefore State regulators face valuable ancillary benefits of natural gas development such as infrastructure improvements. Catalyst 4: Technology Improvements. Lastly, the moratorium itself does not prevent the use of alternative drilling technologies, such as non-hydraulic fracturing, for shale gas production. Developers are already using new systems in Texas and Canada, as well as in France where hydraulic fracturing is banned country-wide. Commercial viability of these new technologies could ultimately provide an alternative to jumpstart shale drilling in New York if necessary. The potential benefits from development of the Marcellus shale in New York are undeniable, though regulators are still working to balance the need to stimulate the economy with environmental protection and public health. Since closing the public comment period in January, the DEC has signaled that much more work is needed, making no promises to near-term completion. While, neighboring states are feeling the economic benefits of drilling, the political environment and the recession continues adding pressure to the process in New York state.

  7. OSTI, US Dept of Energy, Office of Scientific and Technical Informatio...

    Office of Scientific and Technical Information (OSTI)

    The 20th century has been called the Century of Physics. Advances in the physical sciences ... Benefits of research in the physical sciences are evident in much of modern technology, ...

  8. Property:Zip | Open Energy Information

    Open Energy Info (EERE)

    + 21-Century Silicon, Inc. + 75081-1881 + 21st century Green Solutions LLC + 48439 + 25 x 25 America s Energy Future + 21093 + 2OC + BA1 7AB + 2degrees + OX2 7HT + 2e Carbon...

  9. Search results | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    use of windmills in centuries past to high tech wind turbines on wind farms today, and nowhere in history is that more evident than in the last century and a half. Read on to...

  10. DOE Natural Phenomena Hazards (NPH) Workshop

    Office of Environmental Management (EM)

    (301) 428-1990 F. Ruby Tuesday - 19800 Century Boulevard (301) 528-2688 G. Carrabba's Italian Grill - 19935 Century Blvd. (240) 686-1100 H. Hard Times Caf - 13032 Middlebrook...

  11. Before the Senate Energy and Natural Resources Committee

    Broader source: Energy.gov [DOE]

    Subject: 21st Century Energy Deployment Act (Clean Energy Bank) By: Matthew Rogers, Senior Advisor, Office of the Secretary

  12. Tom Vilsack | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Tom Vilsack - Secretary, U.S. Department of Agriculture Most Recent Building a 21st Century Electric Grid June 7...

  13. Roadmap for Nondestructive Evaluation of Reactor Pressure Vessel Research

    Energy Savers [EERE]

    Department of Energy Roadmap and Technical White Papers for 21st Century Truck Partnership Roadmap and Technical White Papers for 21st Century Truck Partnership Roadmap document for 21st Century Truck Partnership developed to pursue detailed goals for engine systems, heavy-duty hybrids, parasitic losses, idle reduction, and safety, PDF icon 21ctp_roadmap_white_papers_2013.pdf More Documents & Publications 21st Century Truck Partnership Roadmap Roadmap and Technical White Papers -

  14. Before the Senate Energy and Natural Resources Committee

    Broader source: Energy.gov [DOE]

    Subject: 21st Century Energy Deployment Act (Clean Energy Bank) Matthew Rogers, Senior Advisor, Office of the Secretary

  15. Climate data, analysis and models for the study of natural variability and anthropogenic change

    SciTech Connect (OSTI)

    Jones, Philip D.

    2014-07-31

    Gridded Temperature Under prior/current support, we completed and published (Jones et al., 2012) the fourth major update to our global land dataset of near-surface air temperatures, CRUTEM4. This is one of the most widely used records of the climate system, having been updated, maintained and further developed with DoE support since the 1980s. We have continued to update the CRUTEM4 (Jones et al., 2012) database that is combined with marine data to produce HadCRUT4 (Morice et al., 2012). The emphasis in our use of station temperature data is to access as many land series that have been homogenized by National Meteorological Services (NMSs, including NCDC/NOAA, Asheville, NC). Unlike the three US groups monitoring surface temperatures in a similar way, we do not infill areas that have no or missing data. We can only infill such regions in CRUTEM4 by accessing more station temperature series. During early 2014, we have begun the extensive task of updating as many of these series as possible using data provided by some NMSs and also through a number of research projects and programs around the world. All the station data used in CRUTEM4 have been available since 2009, but in Osborn and Jones (2014) we have made this more usable using a Google Earth interface (http://www.cru.uea.ac.uk/cru/data/crutem/ge/ ). We have recently completed the update of our infilled land multi-variable dataset (CRU TS 3.10, Harris et al., 2014). This additionally produces complete land fields (except for the Antarctic) for temperature, precipitation, diurnal temperature range, vapour pressure and sunshine/cloud. Using this dataset we have calculated sc-PDSI (self-calibrating Palmer Drought Severity Index) data and compared with other PDSI datasets (Trenberth et al., 2014). Also using CRU TS 3.10 and Reanalysis datasets, we showed no overall increase in global temperature variability despite changing regional patterns (Huntingford et al., 2013). Harris et al. (2014) is an update of an earlier dataset (Mitchell and Jones, 2005) which also had earlier DoE support. The earlier dataset has been cited over 1700 times according to ResearcherID on 31/July/2014 and the recent paper has already been cited 22 times. Analyses of Temperature Data Using the ERA-Interim estimate of the absolute surface air temperature of the Earth (instead of in the more normal form of anomalies) we compared the result against estimates we produced in 1999 with earlier DoE support. The two estimates are surprisingly close (differing by a couple of tenths of a degree Celsius), with the average temperature of the world (for 1981-2010) being very close to 14°C (Jones and Harpham, 2013). We have assessed ERA-Interim against station temperatures from manned and automatic weather station measurements across the Antarctic (Jones and Lister, 2014). Agreement is generally excellent across the Antarctic Peninsula and the sparsely sampled western parts of Antarctica. Differences tend to occur over eastern Antarctica where ERA-Interim is biased warm (up to 6°C) in the interior of the continent and biased cool (up to 6°C) for some of the coastal locations. Opportunities presented themselves during 2012 for collaborative work with a couple of Chinese groups. Three papers develop new temperature series for China as a whole and also for the eastern third of China (Wang et al., 2014, Cao et al., 2013 and Zhao et al., 2014). A dataset of ~400 daily Chinese temperature stations has been added to the CRU datasets. The latter paper finds that urban effects are generally about 10% of the long-term warming trend across eastern China. A fourth paper (Wang et al., 2013) illustrates issues with comparisons between reanalyses and surface temperatures across China, a method that has been widely used by some to suggest urban heating effects are much larger in the region. ERA-Interim can be used but NCEP/NCAR comparisons are very dependent on the period analysed. Earlier a new temperature dataset of homogenized records was developed for China (Li et al., 2009). Urbanization has also been addressed for London (Jones and Lister, 2009) where two rural sites have not warmed more than a city centre site since 1900. Additionally, in Ethymiadis and Jones (2010) we show that land air temperatures agree with marine data around coastal areas, further illustrating that urbanization is not a major component of large-scale surface air temperature change. Early instrumental data (before the development of modern thermometer screens) have always been suspected of being biased warm in summer, due to possible direct exposure to the sun. Two studies (Böhm et al., 2010 and Brunet et al., 2010) show this for the Greater Alpine Region (GAR) and for mainland Spain respectively. The issue is important before about 1870 in the GAR and before about 1900 in Spain. After correction for the problems, summer temperature estimates before these dates are cooler by about 0.4°C. In Jones and Wigley (2010), we discussed the importance of the biases in global temperature estimation. Exposure and to a lesser extent urbanization are the most important biases for the land areas, but both are dwarfed by the necessary adjustments for bucket SST measurements before about 1950. Individual station homogeneity is only important at the local scale. This was additionally illustrated by Hawkins and Jones (2013) where we replicated the temperature record developed by Guy Stewart Callendar in papers in 1938 and 1961. Analyses of Daily Climate Data Work here indicates that ERA-Interim (at least in Europe, Cornes and Jones, 2013, discussed in more detail in this proposal) can be used to monitor extremes (using the ETCCDI software – see Zhang et al., 2011). Additionally, also as a result of Chinese collaboration, a new method of daily temperature homogenization has been developed (Li et al., 2014). In Cornes and Jones (2011) we assessed storm activity in the northeast Atlantic region using daily gridded data. Even though the grid resolution is coarse (5° by 5° lat/long) the changes in storm activity are similar to those developed from the pressure triangle approach with station data. Analyses of humidity and pressure data In Simmons et al. (2010) we showed a reduction in relative humidity over low-latitude and mid-latitude land areas for the 10 years to 2008, based on monthly anomalies of surface air temperature and humidity from ECMWF reanalyses (ERA-40 and ERA-Interim) and our earlier land-only dataset (CRUTEM3) and synoptic humidity observations (HadCRUH). Updates of this station-based humidity dataset (now called HadISDH) extend the record, showing continued reductions (Willett et al., 2013). Analyses of Proxy Temperature Data In Vinther et al. (2010), relationships between the seasonal stable isotope data from Greenland Ice Cores and Greenland and Icelandic instrumental temperatures were investigated for the past 150-200 years. The winter season stable isotope data are found to be influenced by the North Atlantic Oscillation (NAO) and very closely related to SW Greenland temperatures. The summer season stable isotope data display higher correlations with Icelandic summer temperatures and North Atlantic SST conditions than with local SW Greenland temperatures. In Jones et al. (2014) we use these winter isotope reconstructions to show the expected inverse correlation (due to the NAO) with winter-season documentary reconstructions from the Netherlands and Sweden over the last 800 years. Finally, in this section Jones et al. (2013) shows the agreement between tree-ring width measurements from Northern Sweden and Finland and an assessment of the link to explosive volcanic eruptions. An instrumental record for the region in the early 19th century indicates that the summer of 1816 was only slightly below normal, explaining why this year has normal growth for both ring width and density. GCM/RCM/Reanalysis Evaluation In this section we have intercompared daily temperature extremes across Europe in Cornes and Jones (2013) using station data, E-OBS and ERA-Interim. We have additionally considered the impact of the urban issue on the global scale using the results of the Compo et al. (2011) Reanalyses, 20CR. These only make use of SST and station pressure data. Across the world’s land areas, they indicate similar warming since 1900 to that which has occurred (Compo et al., 2013), again illustrating that urbanization is not the cause of the long-term warming. Changes in HadCRUH global land surface specific humidity and CRUTEM3 surface temperatures from 1973 to 1999 were compared to the CMIP3 archive of climate model simulations with 20th Century forcings (Willett et al., 2010). The models reproduce the magnitude of observed interannual variance over all large regions. Observed and modelled trends and temperature-humidity relationships are comparable with the exception of the extra-tropical Southern Hemisphere where observations exhibit no trend but models exhibit moistening.

  16. Grain Handling and Transportation Policy in Canada: Implications for the United States

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Nolan, James; Peterson, Steven K

    2015-08-01

    The grain handling and transportation system in Canada (GHTS) is currently going through a major transition, both with respect to handling and transportation. Historically, the system has pitted farmers against the railways with respect to securing individual fair shares of grain revenues. But with the removal of the single desk marketing and logistics function of the Canadian Wheat Board (CWB) in late 2012, a very interesting and potentially game-changing outcome is emerging with respect to the new functionality of the grain companies in the Canadian system. While historical awareness of rail s natural monopoly position in the grain handling systemmore » has kept that sector regulated (in several ways) for close to a century, we are now starting to see the effects of a less than competitive Canadian grain handling sector on revenue sharing, along with renewed movement in the industry with respect to buyouts and potential mergers. This overview will highlight some of the changes now occurring and how they are potentially going to interact or evolve as the system moves forward. For example, the on-going regulatory instrument used to regulate grain transportation rates in Canada (called the maximum revenue entitlement (MRE) or revenue cap) is under current debate because of the introduction a few months ago of a modification to an old regulatory instrument known as extended (or reciprocal) interswitching. As opposed to the revenue cap which is a direct intervention on monopoly behavior, extended interswitching is designed to encourage the major Canadian grain carriers to compete with one another and potentially seek out new traffic (Nolan and Skotheim, 2008). But the most intriguing aspect of extended interswitching is how it might allow a major rail carrier from the U.S. to solicit grain traffic in some areas of the Canadian grain transportation system.« less

  17. North America's net terrestrial carbon exchange with the atmosphere 1990-2009

    SciTech Connect (OSTI)

    King, Anthony W.; Andres, Robert; Davis, Kenneth J.; Hafer, M.; Hayes, Daniel J.; Huntzinger, Deborah N.; de Jong, Bernardus; Kurz, Werner; McGuire, A. David; Vargas, Rodrigo; Wei, Yaxing; West, Tristram O.; Woodall, Chris W.

    2015-01-01

    Scientific understanding of the global carbon cycle is required for developing national and international policy to mitigate fossil-fuel CO2 emissions by managing terrestrial carbon uptake. Toward that understanding and as a contribution to the REgional Carbon Cycle Assessment and Processes (RECCAP) project, this paper provides a synthesis of net land-atmosphere CO2 exchange for North America over the period (1990-2009). This synthesis is based on results from three different methods: atmospheric inversion, inventory-based methods and terrestrial biosphere modeling. All methods indicate that the North America land surface was a sink for atmospheric CO2, with a net transfer from atmosphere to land. Estimates ranged from -890 to -280 Tg C yr-1, where the atmospheric inversion estimate forms the lower bound of that range (a larger land-sink) and the inventory-based estimate the upper (a smaller land sink). Integrating across estimates, a best estimates (i.e., measures of central tendency) are -472 281 Tg C yr-1 based on the mean and standard deviation of the distribution and -360 Tg C yr-1 (with an interquartile range of -496 to -337) based on the median. Considering both the fossil-fuel emissions source and the land sink, our analysis shows that North America was, however, a net contributor to the growth of CO2 in the atmosphere in the late 20th and early 21st century. The continents CO2 source to sink ratio for this time period was likely in the range of 4:1 to 3:1.

  18. ELECTRONIC SCHOLARLY PUBLISHING: FOUNDATIONS OF GENETICS

    SciTech Connect (OSTI)

    Robert J. Robbins

    2002-11-10

    As the Human Genome Project (HGP) moves toward its successful completion, more and more people have become interested in understanding this project and its results. Since the HGP has significant ethical, legal, and social implications for all citizens, the number of individuals who do, or should wish to become familiar with the project is high. In addition to its importance in the training of professional geneticists, the HGP is of special relevance for undergraduate training in basic biology, and even for high-school and other K-12 education. Understanding the results of HGP research requires a familiarity with the notions of basic genetics. Unlike other disciplines that evolved over centuries, modern genetics began abruptly with the rediscovery of Gregor Mendel's work in 1900. Within a few years, fundamental concepts were elaborated and the foundations of genetics established. Because genetics developed so rapidly in just a few decades after 1900, the literature of that period constitutes a valuable resource even now. It may be read profitably by students and scientists wishing to understand the foundations of their field, as well as by laymen or historians of science. Unfortunately, the early literature is rapidly becoming almost inaccessible. Newer libraries do not hold older journals and even established libraries are moving their materials from that era into hard-to-reach (and impossible to browse) long-term storage in remote warehouses. To be sure, key studies from the early work are discussed in nearly all textbooks, but a comparison of these presentations with the actual literature shows that most textbook treatments have essentially mythologized the early work so that real understanding is lost. There have been several collections of classic works developed over the years (although none lately), but these suffer from the effects of the necessary, but nonetheless pernicious, highly selective sampling that accompanies these projects. Such selectivity, coupled with introductions that offer essentially modern interpretations of the work, obscure the intellectual rigor and excitement of the original efforts.

  19. Grain Handling and Transportation Policy in Canada: Implications for the United States

    SciTech Connect (OSTI)

    Nolan, James; Peterson, Steven K

    2015-08-01

    The grain handling and transportation system in Canada (GHTS) is currently going through a major transition, both with respect to handling and transportation. Historically, the system has pitted farmers against the railways with respect to securing individual fair shares of grain revenues. But with the removal of the single desk marketing and logistics function of the Canadian Wheat Board (CWB) in late 2012, a very interesting and potentially game-changing outcome is emerging with respect to the new functionality of the grain companies in the Canadian system. While historical awareness of rail s natural monopoly position in the grain handling system has kept that sector regulated (in several ways) for close to a century, we are now starting to see the effects of a less than competitive Canadian grain handling sector on revenue sharing, along with renewed movement in the industry with respect to buyouts and potential mergers. This overview will highlight some of the changes now occurring and how they are potentially going to interact or evolve as the system moves forward. For example, the on-going regulatory instrument used to regulate grain transportation rates in Canada (called the maximum revenue entitlement (MRE) or revenue cap) is under current debate because of the introduction a few months ago of a modification to an old regulatory instrument known as extended (or reciprocal) interswitching. As opposed to the revenue cap which is a direct intervention on monopoly behavior, extended interswitching is designed to encourage the major Canadian grain carriers to compete with one another and potentially seek out new traffic (Nolan and Skotheim, 2008). But the most intriguing aspect of extended interswitching is how it might allow a major rail carrier from the U.S. to solicit grain traffic in some areas of the Canadian grain transportation system.

  20. Grain Handling and Transportation Policy in Canada: Implications for the United States

    SciTech Connect (OSTI)

    Nolan, James; Peterson, Steven K

    2015-01-01

    The grain handling and transportation system in Canada (GHTS) is currently going through a major transition, both with respect to handling and transportation. Historically, the system has pitted farmers against the railways with respect to securing individual fair shares of grain revenues. But with the removal of the single desk marketing and logistics function of the Canadian Wheat Board (CWB) in late 2012, a very interesting and potentially game-changing outcome is emerging with respect to the new functionality of the grain companies in the Canadian system. While historical awareness of rail s natural monopoly position in the grain handling system has kept that sector regulated (in several ways) for close to a century, we are now starting to see the effects of a less than competitive Canadian grain handling sector on revenue sharing, along with renewed movement in the industry with respect to buyouts and potential mergers. This overview will highlight some of the changes now occurring and how they are potentially going to interact or evolve as the system moves forward. For example, the on-going regulatory instrument used to regulate grain transportation rates in Canada (called the maximum revenue entitlement (MRE) or revenue cap) is under current debate because of the introduction a few months ago of a modification to an old regulatory instrument known as extended (or reciprocal) interswitching. As opposed to the revenue cap which is a direct intervention on monopoly behavior, extended interswitching is designed to encourage the major Canadian grain carriers to compete with one another and potentially seek out new traffic (Nolan and Skotheim, 2008). But the most intriguing aspect of extended interswitching is how it might allow a major rail carrier from the U.S. to solicit grain traffic in some areas of the Canadian grain transportation system.