Sample records for doug abernathy wide

  1. Doug Jacobsen

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscovering HowAna Moore Anne Jones DevensforDoubleDOE|Doug

  2. Abernathy, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00 U.S.ratiosAbernathy, Texas: Energy

  3. Geothermal Technologies Office Director Doug Hollett Keynotes...

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

    Director Doug Hollett Keynotes at Annual Technical Conference of the Geothermal Resources Council in September Geothermal Technologies Office Director Doug Hollett Keynotes at...

  4. Geothermal Resources Council Annual Meeting - Doug Hollett Presentatio...

    Office of Environmental Management (EM)

    Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Geothermal Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Keynote...

  5. Doug Kothe | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 Russian NuclearandJunetrack graphics4Dimitri Kusnezov -Purpose TheDoug Kothe -

  6. Doug Rand | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197E T ADRAFTJanuaryDominion Resources,DepartmentDoug Rand

  7. Harmonic Fluids Changxi Zheng Doug L. James

    E-Print Network [OSTI]

    Columbia University

    Harmonic Fluids Changxi Zheng Doug L. James Cornell University Abstract Fluid sounds- ing. Furthermore, while offline applications can rely on talented foley artists to "cook up" plausible for vortex-based fluid sounds [Dobashi et al. 2003] and solid bodies [O'Brien et al. 2001; James et al. 2006

  8. Instituto Babcock Pamela Ruegg, Dam Rasmussen, y Doug Reinemann, Universidad de Wisconsin Instituto Babcock

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Instituto Babcock © Pamela Ruegg, Dam Rasmussen, y Doug Reinemann, Universidad de Wisconsin. Pamela Ruegg, Dam Rasmussen, and Doug Reinemann Traductor: Matías Fernandez Introducción La producción y

  9. PNNL Expert Doug McMakin Discusses Millimeter Wave Technology

    ScienceCinema (OSTI)

    Doug McMakin

    2012-12-31T23:59:59.000Z

    Electrical Engineer Doug McMakin discusses Millimeter Wave Holographic technology, which uses non-harmful, ultrahigh-frequency radio waves to penetrate clothing to detect and identify concealed objects, as well as obtain accurate body measurements.

  10. Refrigerator Recycling Evaluation Protocol Doug Bruchs, The Cadmus Group, Inc.

    E-Print Network [OSTI]

    1 Refrigerator Recycling Evaluation Protocol Doug Bruchs, The Cadmus Group, Inc. Refrigerator Description Refrigerator recycling programs are designed to save energy through the removal of old-but- operable refrigerators from service. By offering free pick-up, providing incentives, and disseminating

  11. Network Processes in Evolving Systems Wed Jan 28'04 Doug White (working paper for RFG)

    E-Print Network [OSTI]

    White, Douglas R.

    and Sustainability Centralization and Power Law Connectivity Vulnerability Organization Ridge Structure (see below) 4Network Processes in Evolving Systems Wed Jan 28'04 Doug White (working paper for RFG) OUTLINE Processes in Evolving Systems Wed Jan 28'04 Doug White 1. Outlook: Network Processes, Topological Effects

  12. Bianca Aaron Joshua Abernathy

    E-Print Network [OSTI]

    Taylor, Jerry

    Sydney Anderson Haley Anderson William Anderson Carson Anderson Anastasia Anderson Ashley Anderson Michelle Anderson Emily Anderson Michael Andrade Luke Andrea Michael Andreani Kahlee Andresen Katherine Beydler Elaine Bezold Nida Bhimani Xi Bi Kasandra Bienhoff Mary Bifulco Nicole Billen Jacob Billingsley

  13. Welcome Doug MacIntyre, Director, Office of Petroleum and Biofuels...

    U.S. Energy Information Administration (EIA) Indexed Site

    Time) 9:30 am - 9:45 am Welcome Doug MacIntyre, Director, Office of Petroleum and Biofuels Statistics, U.S. Energy Information Administration Mr. MacIntyre is the Director of...

  14. Natural Reproductive Success and Demographic Effects of Hatchery-Origin Steelhead in Abernathy Creek, Washington : Annual Report 2008.

    SciTech Connect (OSTI)

    U.S. Fish & Wildlife Service, Abernathy Fish Technology Center

    2008-12-01T23:59:59.000Z

    Many hatchery programs for steelhead pose genetic or ecological risks to natural populations because those programs release or outplant fish from non-native stocks. The goal of many steelhead programs has been to simply provide 'fishing opportunities' with little consideration given to conservation concerns. For example, the Washington Department of Fish and Wildlife (WDFW) has widely propagated and outplanted one stock of winter-run steelhead (Chambers Creek stock) and one stock of summer-run steelhead (Skamania stock) throughout western Washington. Biologists and managers now recognize potential negative effects can occur when non-native hatchery fish interact biologically with native populations. Not only do non-native stocks pose genetic and ecological risks to naturally spawning populations, but non-native fish stray as returning adults at a much higher rate than do native fish (Quinn 1993). Biologists and managers also recognize the need to (a) maintain the genetic resources associated with naturally spawning populations and (b) restore or recover natural populations wherever possible. As a consequence, the U.S. Fish & Wildlife Service (USFWS) and the NOAA Fisheries have been recommending a general policy that discourages the use of non-native hatchery stocks and encourages development of native broodstocks. There are two primary motivations for these recommendations: (1) reduce or minimize potential negative biological effects resulting from genetic or ecological interactions between hatchery-origin and native-origin fish and (2) use native broodstocks as genetic repositories to potentially assist with recovery of naturally spawning populations. A major motivation for the captive-rearing work described in this report resulted from NOAA's 1998 Biological Opinion on Artificial Propagation in the Columbia River Basin. In that biological opinion (BO), NOAA concluded that non-native hatchery stocks of steelhead jeopardize the continued existence of U.S. Endangered Species Act (ESA)-listed, naturally spawning populations in the Columbia River Basin. As a consequence of that BO, NOAA recommended - as a reasonable and prudent alternative (RPA) - that federal and state agencies phase out non-native broodstocks of steelhead and replace them with native broodstocks. However, NOAA provided no guidance on how to achieve that RPA. The development of native broodstocks of hatchery steelhead can potentially pose unacceptable biological risks to naturally spawning populations, particularly those that are already listed as threatened or endangered under the ESA. The traditional method of initiating new hatchery broodstocks of anadromous salmonid fishes is by trapping adults during their upstream, spawning migration. However, removing natural-origin adults from ESA listed populations may not be biologically acceptable because such activities may further depress those populations via 'broodstock mining'. In addition, trapping adult steelhead may be logistically unfeasible in many subbasins due to high water flows in the spring, when steelhead are moving upstream to spawn, that will often 'blow out' temporary weirs. Additional risks associated with trapping adults include genetic founder effects and difficulties meeting minimum, genetic effective number of breeders without 'mining' the wild population to potential extinction. As a result, alternative methods for developing native broodstocks are highly desired. One alternative for developing native broodstocks, particularly when the collection of adults is logistically unfeasible or biologically unacceptable, is captive rearing of natural-origin juveniles to sexual maturity. In this approach, pre-smolt juveniles are collected from the stream or watershed for which a native broodstock is desired, and those juveniles are raised to sexual maturity in a hatchery. Those hatchery-reared adults then become the broodstock source for gametes and initial progeny releases. Such a captive rearing program offers many genetic advantages over traditional adult-trapping programs for developing native

  15. NERSC/DOE FES Requirements Workshop Worksheet - Doug McCune

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLoveReference MaterialsReferenceReference MaterialsCS ChangDoug

  16. Pavement Smoothness for Illinois DOT -Doug Dirks 1. Briefly summarize your current pavement smoothness requirements. See below.

    E-Print Network [OSTI]

    Pavement Smoothness for Illinois DOT - Doug Dirks 1. Briefly summarize your current pavement? N/A Illinois has both standard specifications and a special provision for pavement smoothness-Depth HMA pavements, and PCC Pavements are all included in this special provision. http

  17. Doug Larson

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscovering HowAna Moore Anne Jones

  18. abernathy creek washington: Topics by E-print Network

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

    Acidification Panel on Ocean Acidification 12;NOTICE from NOAA Mention of a commercial company or product does and Back Cover Graphic: Acknowledgments: Scientific Summary of...

  19. Wide Blue Sky

    E-Print Network [OSTI]

    Collins, Caroline Imani

    2011-01-01T23:59:59.000Z

    dressed neatly in a dark blue dress, its high neck trimmedIt was covered in a light blue fabric embellished with softOF CALIFORNIA RIVERSIDE Wide Blue Sky A Thesis submitted in

  20. Wide Angle Compton Scattering

    E-Print Network [OSTI]

    Rainer Jakob

    2000-10-16T23:59:59.000Z

    We present the handbag contribution to Wide Angle Compton Scattering (WACS) at moderately large momentum transfer obtained with a proton distribution amplitude close to the asymptotic form. In comparison it is found to be significantly larger than results from the hard scattering (pQCD) approach.

  1. Doug Sisterson | Argonne National Laboratory

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

    Science Highlights In the News Experts Guide Media Contacts Social Media Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Browse by Topic...

  2. Genomics and Bioinformatics Doug Brutlag

    E-Print Network [OSTI]

    IX #12;Genomics, Bioinformatics & Computational Biology Computational Biology Computational Molecular Biology BioinformaticsGenomics ProteomicsStructural Genomics #12;Genomics, Bioinformatics & Computational Biology Computational Biology Computational Molecular Biology BioinformaticsGenomics Proteomics

  3. Wide-Bandgap Semiconductors

    SciTech Connect (OSTI)

    Chinthavali, M.S.

    2005-11-22T23:59:59.000Z

    With the increase in demand for more efficient, higher-power, and higher-temperature operation of power converters, design engineers face the challenge of increasing the efficiency and power density of converters [1, 2]. Development in power semiconductors is vital for achieving the design goals set by the industry. Silicon (Si) power devices have reached their theoretical limits in terms of higher-temperature and higher-power operation by virtue of the physical properties of the material. To overcome these limitations, research has focused on wide-bandgap materials such as silicon carbide (SiC), gallium nitride (GaN), and diamond because of their superior material advantages such as large bandgap, high thermal conductivity, and high critical breakdown field strength. Diamond is the ultimate material for power devices because of its greater than tenfold improvement in electrical properties compared with silicon; however, it is more suited for higher-voltage (grid level) higher-power applications based on the intrinsic properties of the material [3]. GaN and SiC power devices have similar performance improvements over Si power devices. GaN performs only slightly better than SiC. Both SiC and GaN have processing issues that need to be resolved before they can seriously challenge Si power devices; however, SiC is at a more technically advanced stage than GaN. SiC is considered to be the best transition material for future power devices before high-power diamond device technology matures. Since SiC power devices have lower losses than Si devices, SiC-based power converters are more efficient. With the high-temperature operation capability of SiC, thermal management requirements are reduced; therefore, a smaller heat sink would be sufficient. In addition, since SiC power devices can be switched at higher frequencies, smaller passive components are required in power converters. Smaller heat sinks and passive components result in higher-power-density power converters. With the advent of the use of SiC devices it is imperative that models of these be made available in commercial simulators. This enables power electronic designers to simulate their designs for various test conditions prior to fabrication. To build an accurate transistor-level model of a power electronic system such as an inverter, the first step is to characterize the semiconductor devices that are present in the system. Suitable test beds need to be built for each device to precisely test the devices and obtain relevant data that can be used for modeling. This includes careful characterization of the parasitic elements so as to emulate the test setup as closely as possible in simulations. This report is arranged as follows: Chapter 2--The testing and characterization of several diodes and power switches is presented. Chapter 3--A 55-kW hybrid inverter (Si insulated gate bipolar transistor--SiC Schottky diodes) device models and test results are presented. A detailed description of the various test setups followed by the parameter extraction, modeling, and simulation study of the inverter performance is presented. Chapter 4--A 7.5-kW all-SiC inverter (SiC junction field effect transistors (JFET)--SiC Schottky diodes) was built and tested. The models built in Saber were validated using the test data and the models were used in system applications in the Saber simulator. The simulation results and a comparison of the data from the prototype tests are discussed in this chapter. Chapter 5--The duration test results of devices utilized in buck converters undergoing reliability testing are presented.

  4. Wide field of view telescope

    DOE Patents [OSTI]

    Ackermann, Mark R. (Albuquerque, NM); McGraw, John T. (Placitas, NM); Zimmer, Peter C. (Albuquerque, NM)

    2008-01-15T23:59:59.000Z

    A wide field of view telescope having two concave and two convex reflective surfaces, each with an aspheric surface contour, has a flat focal plane array. Each of the primary, secondary, tertiary, and quaternary reflective surfaces are rotationally symmetric about the optical axis. The combination of the reflective surfaces results in a wide field of view in the range of approximately 3.8.degree. to approximately 6.5.degree.. The length of the telescope along the optical axis is approximately equal to or less than the diameter of the largest of the reflective surfaces.

  5. SOFTWAREENGINEERING The World Wide Web

    E-Print Network [OSTI]

    Whitehead, James

    SOFTWAREENGINEERING The World Wide Web Distributed Authoring and Versioning working group on the Web. WEBDAV: IETF Standard for Collaborative Authoring on the Web E. JAMES WHITEHEAD, JR. University remains to be done. What if instead you could simply edit Web documents (or any Web resource) in place

  6. Going Deep vs. Going Wide

    Broader source: Energy.gov [DOE]

    Going Deep vs. Going Wide, from the Residential Energy Efficiency Solutions Conference 2012. Provides an overview on the progress of four energy efficiency programs: Clean Energy Works Oregon, Efficiency Maine, Energy Upgrade California Flex Path, and EcoHouse Loan Program.

  7. Wide Bandgap Extrinsic Photoconductive Switches

    SciTech Connect (OSTI)

    Sullivan, J S

    2012-01-17T23:59:59.000Z

    Photoconductive semiconductor switches (PCSS) have been investigated since the late 1970s. Some devices have been developed that withstand tens of kilovolts and others that switch hundreds of amperes. However, no single device has been developed that can reliably withstand both high voltage and switch high current. Yet, photoconductive switches still hold the promise of reliable high voltage and high current operation with subnanosecond risetimes. Particularly since good quality, bulk, single crystal, wide bandgap semiconductor materials have recently become available. In this chapter we will review the basic operation of PCSS devices, status of PCSS devices and properties of the wide bandgap semiconductors 4H-SiC, 6H-SiC and 2H-GaN.

  8. Opportunities for Wide Bandgap Semiconductor Power Electronics...

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

    Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen and Fuel Cell Applications Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen...

  9. Wide-range voltage modulation

    SciTech Connect (OSTI)

    Rust, K.R.; Wilson, J.M.

    1992-06-01T23:59:59.000Z

    The Superconducting Super Collider`s Medium Energy Booster Abort (MEBA) kicker modulator will supply a current pulse to the abort magnets which deflect the proton beam from the MEB ring into a designated beam stop. The abort kicker will be used extensively during testing of the Low Energy Booster (LEB) and the MEB rings. When the Collider is in full operation, the MEBA kicker modulator will abort the MEB beam in the event of a malfunction during the filling process. The modulator must generate a 14-{mu}s wide pulse with a rise time of less than 1 {mu}s, including the delay and jitter times. It must also be able to deliver a current pulse to the magnet proportional to the beam energy at any time during ramp-up of the accelerator. Tracking the beam energy, which increases from 12 GeV at injection to 200 GeV at extraction, requires the modulator to operate over a wide range of voltages (4 kV to 80 kV). A vacuum spark gap and a thyratron have been chosen for test and evaluation as candidate switches for the abort modulator. Modulator design, switching time delay, jitter and pre-fire data are presented.

  10. S'09 Biology/BIOLA* Dean's List Jessica Abernathy* Bridget Funk Charles Paul

    E-Print Network [OSTI]

    Wurtele, Eve Syrkin

    Johnson Alexandra Schenck* Amanda Bottjen Megan Johnson* Kelsey Schipull Erin Bradley Samuel Johnson

  11. Ultra wide-bandwidth micro energy harvester

    E-Print Network [OSTI]

    Hajati, Arman

    2011-01-01T23:59:59.000Z

    An ultra wide-bandwidth resonating thin film PZT MEMS energy harvester has been designed, modeled, fabricated and tested. It harvests energy from parasitic ambient vibration at a wide range of amplitude and frequency via ...

  12. Microsoft Word - doug flc.doc

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

    * Rocky Mountain Oilfield Testing Center 907 N. Poplar Street, Suite 150 * Casper, WY 82601 * 307.261.5000 * 888.599.2200 * www.rmotc.com RMOTC manager elected to Federal...

  13. TAYLOR BRIDGE -FIELD ASSESSMENT Doug STEWARTi

    E-Print Network [OSTI]

    (Leadline) A PLAN VIEW Fig. 1. Bridge Layout Fig. 2. Girder Reinforcement no. of sensors FRP (CFCC) 5 spans composite cables (CFCC), produced by Tokyo Rope in Japan, were used to pretension two girders while

  14. Waste Disposition Update by Doug Tonkay

    Office of Environmental Management (EM)

    Douglas Tonkay Office of Disposal Operations October 20, 2011 o Continue to manage waste inventories in a safe and compliant manner. o Address high risk waste in a cost-...

  15. Doug Dearolph | National Nuclear Security Administration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscovering HowAna Moore Anne Jones DevensforDoubleDOE|

  16. I-GRC Doug.pptx

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEIHesperia, California:ProjectProgramsAlterationAl.,GRC Jay Nathwani

  17. Waste Disposition Update by Doug Tonkay

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2Uranium TransferonUS-IndiaVALUE STUDY4,

  18. DFAS Wide-Area Workflow Issues

    Broader source: Energy.gov [DOE]

    Presentation covers the DFAS wide-area workflow issues and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

  19. Effective Community-Wide Policy Technical Assistance

    E-Print Network [OSTI]

    Effective Community-Wide Policy Technical Assistance: The DOE/NREL Approach NREL is a national: The DOE/NREL Approach Effective Community-Wide Policy Technical Assistance: The DOE/NREL Approach HelpingVoss, Sarah Busche, Eric Lantz, Lynn Billman, and Dan Beckley. The layout and technical editing were

  20. West Wide Programmatic Environmental Impact Statement Record...

    Open Energy Info (EERE)

    Reference LibraryAdd to library Legal Document- OtherOther: West Wide Programmatic Environmental Impact Statement Record of Decision (BLM)Legal Published NA Year Signed or Took...

  1. GWIDD: Genome-wide protein docking database

    E-Print Network [OSTI]

    Kundrotas, Petras J.; Zhu, Zhengwei; Vasker, Ilya A.

    2009-11-09T23:59:59.000Z

    Structural information on interacting proteins is important for understanding life processes at the molecular level. Genome-wide docking database is an integrated resource for structural studies of protein–protein interactions on the genome scale...

  2. The diameter of the world wide web

    E-Print Network [OSTI]

    Reka Albert; Hawoong Jeong; Albert-Laszlo Barabasi

    1999-09-10T23:59:59.000Z

    Despite its increasing role in communication, the world wide web remains the least controlled medium: any individual or institution can create websites with unrestricted number of documents and links. While great efforts are made to map and characterize the Internet's infrastructure, little is known about the topology of the web. Here we take a first step to fill this gap: we use local connectivity measurements to construct a topological model of the world wide web, allowing us to explore and characterize its large scale properties.

  3. Wide field imaging of distant clusters

    E-Print Network [OSTI]

    T. Treu

    2004-08-05T23:59:59.000Z

    Wide field imaging is key to understanding the build-up of distant clusters and their galaxy population. By focusing on the so far unexplored outskirts of clusters, where infalling galaxies first hit the cluster potential and the hot intracluster medium, we can help separate cosmological field galaxy evolution from that driven by environment. I present a selection of recent advancements in this area, with particular emphasis on Hubble Space Telescope wide field imaging, for its superior capability to deliver galaxy morphologies and precise shear maps of distant clusters.

  4. Wide temperature range seal for demountable joints

    DOE Patents [OSTI]

    Sixsmith, H.; Valenzuela, J.A.; Nutt, W.E.

    1991-07-23T23:59:59.000Z

    The present invention is directed to a seal for demountable joints operating over a wide temperature range down to liquid helium temperatures. The seal has anti-extrusion guards which prevent extrusion of the soft ductile sealant material, which may be indium or an alloy thereof. 6 figures.

  5. Wide temperature range seal for demountable joints

    DOE Patents [OSTI]

    Sixsmith, Herbert (Norwich, VT); Valenzuela, Javier A. (Grantham, NH); Nutt, William E. (Enfield, NH)

    1991-07-23T23:59:59.000Z

    The present invention is directed to a seal for demountable joints operating over a wide temperature range down to liquid helium temperatures. The seal has anti-extrusion guards which prevent extrusion of the soft ductile sealant material, which may be indium or an alloy thereof.

  6. WORLD WIDE WEB 2.3 Web

    E-Print Network [OSTI]

    Markatos, Evangelos P.

    H I2 C WORLD WIDE WEB 1996 #12; 1. 1.1 I2 Cnet 1.2 1.3 WWW 2 2.1 2.2 2.3 Web 2.4 3 O 3.1 3.2 3.3 3.4 O Web browsers. 4. 4.1 4.2 4 File System 9.6 10 A. Web browser HTT . B A #12

  7. World Wide Web( WWW ) Greenberg Web

    E-Print Network [OSTI]

    Shirai, Kiyoaki

    WWW 1 World Wide Web( WWW ) WWW Web Web Greenberg Web 30% [1] Web WWW Web WWW [2] [3] WWW 2 2.1 WWW Web 1 1: · 1 · 1 #12;· Web Web 2: 2 2 Web 2.2 Web Web URL URL .html / Yahoo http://headlines.yahoo.co.jp/hl?a=2 0011205-00000101-yom-soci URL onmouseover on- mouseout JavaScript 2.1 2.3 URL URL 1. Web HTML 2. 1

  8. WIRELESS MINE-WIDE TELECOMMUNICATIONS TECHNOLOGY

    SciTech Connect (OSTI)

    Zvi H. Meiksin

    2004-03-01T23:59:59.000Z

    A comprehensive mine-wide, two-way wireless voice and data communication system for the underground mining industry was developed. The system achieves energy savings through increased productivity and greater energy efficiency in meeting safety requirements within mines. The mine-wide system is comprised of two interfaced subsystems: a through-the-earth communications system and an in-mine communications system. The mine-wide system permits two-way communication among underground personnel and between underground and surface personnel. The system was designed, built, and commercialized. Several systems are in operation in underground mines in the United States. The use of these systems has proven they result in considerable energy savings. A system for tracking the location of vehicles and people within the mine was also developed, built and tested successfully. Transtek's systems are being used by the National Institute of Occupational Safety and Health (NIOSH) in their underground mine rescue team training program. This project also resulted in a spin-off rescue team lifeline and communications system. Furthermore, the project points the way to further developments that can lead to a GPS-like system for underground mines allowing the use of autonomous machines in underground mining operations, greatly reducing the amount of energy used in these operations. Some products developed under this program are transferable to applications in fields other than mining. The rescue team system is applicable to use by first responders to natural, accidental, or terrorist-caused building collapses. The in-mine communications system can be installed in high-rise buildings providing in-building communications to security and maintenance personnel as well as to first responders.

  9. Modern testing meets wide range of objectives

    SciTech Connect (OSTI)

    Ehlig-Economides, C.A.; Hegeman, P. (Schlumberger Oilfield Services, Houston, TX (United States)); Clark, G. (Schlumberger Oilfield Services, Aberdeen (United Kingdom))

    1994-08-01T23:59:59.000Z

    Testing sequences in two very different wells illustrate the wide range of objectives that are met with modern testing procedures. The first example is a drill stem test in an exploration well. The second test is in an established producing well. The exploration well test incorporated tubing-conveyed perforating, fluid sampling, production logging, and matrix stimulation to evaluate and properly treat near-well bore damage, as well as to investigate reservoir volume and characterize boundaries. The test on the established producer evaluated whether a workover could remedy lower than expected productivity. Production logging was combined with stationary transient measurements.

  10. Concave nanomagnets with widely tunable anisotropy

    SciTech Connect (OSTI)

    Lambson, Brian; Gu, Zheng; Carlton, David; Bokor, Jeffrey

    2014-07-01T23:59:59.000Z

    A nanomagnet having widely tunable anisotropy is disclosed. The disclosed nanomagnet is a magnetic particle with a convex shape having a first magnetically easy axis. The convex shape is modified to include at least one concavity to urge a second magnetically easy axis to form substantially offset from the first magnetically easy axis. In at least one embodiment, the convex shape is also modified to include at least one concavity to urge a second magnetically easy axis to form with a magnetic strength substantially different from the first magnetically easy axis.

  11. Wide Bandgap Semiconductors: Pursuing the Promise

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradley NickellApril 16, 2008 TBD-0075 -In theWide Bandgap

  12. Draft Site-Wide Environmental Impact Statement

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T,Office of Policy,Policy ActDetroit7471Site-Wide Environmental Impact Statement

  13. Wide Bandgap Semiconductors | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is a “Shut-down”Whole AlgaeRateWhy IsWhyWhyWide

  14. Wide Electrochemical Window Solvents - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is a “Shut-down”Whole AlgaeRateWhyWide

  15. Lesson Learned by Environmental Management Complex-wide Activity...

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

    Environmental Management Complex-wide Activity-level Work Planning and Control Lesson Learned by Environmental Management Complex-wide Activity-level Work Planning and Control...

  16. Networking and the Web World-Wide Web

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    Networking and the Web #12;World-Wide Web · Wide use of computers Web · Key components of the web ­ Computer Communica8on Networks

  17. District Wide Geothermal Heating Conversion Blaine County School...

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

    District Wide Geothermal Heating Conversion Blaine County School District District Wide Geothermal Heating Conversion Blaine County School District This project will impact the...

  18. Mass Spectrometry Analysis of Proteome-wide Proteolytic Post...

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

    Spectrometry Analysis of Proteome-wide Proteolytic Post-translational Degradation of Proteins. Mass Spectrometry Analysis of Proteome-wide Proteolytic Post-translational...

  19. Effective Community-Wide Policy Technical Assistance: The NREL...

    Open Energy Info (EERE)

    Wide Policy Technical Assistance: The NRELDOE Approach Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Effective Community-Wide Policy Technical Assistance: The NREL...

  20. Proposed Energy Transport Corridors: West-wide energy corridor...

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

    Energy Transport Corridors: West-wide energy corridor programmatic EIS, Draft Corridors - September 2007. Proposed Energy Transport Corridors: West-wide energy corridor...

  1. Webinar: Opportunities for Wide Bandgap Semiconductor Power Electronic...

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

    Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen and Fuel Cell Applications Webinar: Opportunities for Wide Bandgap Semiconductor Power Electronics...

  2. Wide Angle Effects in Galaxy Surveys

    E-Print Network [OSTI]

    Yoo, Jaiyul

    2013-01-01T23:59:59.000Z

    Current and future galaxy surveys cover a large fraction of the entire sky with a significant redshift range, and the recent theoretical development shows that general relativistic effects are present in galaxy clustering on very large scales. This trend has renewed interest in the wide angle effect in galaxy clustering measurements, in which the distant-observer approximation is often adopted. Using the full wide-angle formula for computing the redshift-space correlation function, we show that compared to the sample variance, the deviation in the redshift-space correlation function from the simple Kaiser formula with the distant-observer approximation is negligible in the SDSS and is completely irrelevant in future galaxy surveys such as Euclid and the BigBOSS, if the theoretical prediction from the Kaiser formula is averaged over the survey volume and the non-uniform distribution of cosine angle between the line-of-sight and the pair separation directions is properly considered. We also find small correctio...

  3. WIDE-FIELD ASTRONOMICAL MULTISCALE CAMERAS

    SciTech Connect (OSTI)

    Marks, Daniel L.; Brady, David J., E-mail: dbrady@ee.duke.edu [Department of Electrical and Computer Engineering and Fitzpatrick Institute for Photonics, Box 90291, Duke University, Durham, NC 27708 (United States)

    2013-05-15T23:59:59.000Z

    In order to produce sufficiently low aberrations with a large aperture, telescopes have a limited field of view. Because of this narrow field, large areas of the sky at a given time are unobserved. We propose several telescopes based on monocentric reflective, catadioptric, and refractive objectives that may be scaled to wide fields of view and achieve 1.''1 resolution, which in most locations is the practical seeing limit of the atmosphere. The reflective and Schmidt catadioptric objectives have relatively simple configurations and enable large fields to be captured at the expense of the obscuration of the mirror by secondary optics, a defect that may be managed by image plane design. The refractive telescope design does not have an obscuration but the objective has substantial bulk. The refractive design is a 38 gigapixel camera which consists of a single monocentric objective and 4272 microcameras. Monocentric multiscale telescopes, with their wide fields of view, may observe phenomena that might otherwise be unnoticed, such as supernovae, glint from orbital space debris, and near-earth objects.

  4. Wide range radioactive gas concentration detector

    DOE Patents [OSTI]

    Anderson, David F. (Los Alamos, NM)

    1984-01-01T23:59:59.000Z

    A wide range radioactive gas concentration detector and monitor which is capable of measuring radioactive gas concentrations over a range of eight orders of magnitude. The device of the present invention is designed to have an ionization chamber which is sufficiently small to give a fast response time for measuring radioactive gases but sufficiently large to provide accurate readings at low concentration levels. Closely spaced parallel plate grids provide a uniform electric field in the active region to improve the accuracy of measurements and reduce ion migration time so as to virtually eliminate errors due to ion recombination. The parallel plate grids are fabricated with a minimal surface area to reduce the effects of contamination resulting from absorption of contaminating materials on the surface of the grids. Additionally, the ionization chamber wall is spaced a sufficient distance from the active region of the ionization chamber to minimize contamination effects.

  5. Wide band stepped frequency ground penetrating radar

    DOE Patents [OSTI]

    Bashforth, M.B.; Gardner, D.; Patrick, D.; Lewallen, T.A.; Nammath, S.R.; Painter, K.D.; Vadnais, K.G.

    1996-03-12T23:59:59.000Z

    A wide band ground penetrating radar system is described embodying a method wherein a series of radio frequency signals is produced by a single radio frequency source and provided to a transmit antenna for transmission to a target and reflection therefrom to a receive antenna. A phase modulator modulates those portions of the radio frequency signals to be transmitted and the reflected modulated signal is combined in a mixer with the original radio frequency signal to produce a resultant signal which is demodulated to produce a series of direct current voltage signals, the envelope of which forms a cosine wave shaped plot which is processed by a Fast Fourier Transform Unit 44 into frequency domain data wherein the position of a preponderant frequency is indicative of distance to the target and magnitude is indicative of the signature of the target. 6 figs.

  6. Wide band stepped frequency ground penetrating radar

    DOE Patents [OSTI]

    Bashforth, Michael B. (Buellton, CA); Gardner, Duane (Santa Maria, CA); Patrick, Douglas (Santa Maria, CA); Lewallen, Tricia A. (Ventura, CA); Nammath, Sharyn R. (Santa Barbara, CA); Painter, Kelly D. (Goleta, CA); Vadnais, Kenneth G. (Alexandria, VA)

    1996-01-01T23:59:59.000Z

    A wide band ground penetrating radar system (10) embodying a method wherein a series of radio frequency signals (60) is produced by a single radio frequency source (16) and provided to a transmit antenna (26) for transmission to a target (54) and reflection therefrom to a receive antenna (28). A phase modulator (18) modulates those portion of the radio frequency signals (62) to be transmitted and the reflected modulated signal (62) is combined in a mixer (34) with the original radio frequency signal (60) to produce a resultant signal (53) which is demodulated to produce a series of direct current voltage signals (66) the envelope of which forms a cosine wave shaped plot (68) which is processed by a Fast Fourier Transform unit 44 into frequency domain data (70) wherein the position of a preponderant frequency is indicative of distance to the target (54) and magnitude is indicative of the signature of the target (54).

  7. Imaging spectrometer wide field catadioptric design

    DOE Patents [OSTI]

    Chrisp; Michael P. (Danville, CA)

    2008-08-19T23:59:59.000Z

    A wide field catadioptric imaging spectrometer with an immersive diffraction grating that compensates optical distortions. The catadioptric design has zero Petzval field curvature. The imaging spectrometer comprises an entrance slit for transmitting light, a system with a catadioptric lens and a dioptric lens for receiving the light and directing the light, an immersion grating, and a detector array. The entrance slit, the system for receiving the light, the immersion grating, and the detector array are positioned wherein the entrance slit transmits light to the system for receiving the light and the system for receiving the light directs the light to the immersion grating and the immersion grating receives the light and directs the light through the system for receiving the light to the detector array.

  8. Wide Area Security Region Final Report

    SciTech Connect (OSTI)

    Makarov, Yuri V.; Lu, Shuai; Guo, Xinxin; Gronquist, James; Du, Pengwei; Nguyen, Tony B.; Burns, J. W.

    2010-03-31T23:59:59.000Z

    This report develops innovative and efficient methodologies and practical procedures to determine the wide-area security region of a power system, which take into consideration all types of system constraints including thermal, voltage, voltage stability, transient and potentially oscillatory stability limits in the system. The approach expands the idea of transmission system nomograms to a multidimensional case, involving multiple system limits and parameters such as transmission path constraints, zonal generation or load, etc., considered concurrently. The security region boundary is represented using its piecewise approximation with the help of linear inequalities (so called hyperplanes) in a multi-dimensional space, consisting of system parameters that are critical for security analyses. The goal of this approximation is to find a minimum set of hyperplanes that describe the boundary with a given accuracy. Methodologies are also developed to use the security hyperplanes, pre-calculated offline, to determine system security margins in real-time system operations, to identify weak elements in the system, and to calculate key contributing factors and sensitivities to determine the best system controls in real time and to assist in developing remedial actions and transmission system enhancements offline . A prototype program that automates the simulation procedures used to build the set of security hyperplanes has also been developed. The program makes it convenient to update the set of security hyperplanes necessitated by changes in system configurations. A prototype operational tool that uses the security hyperplanes to assess security margins and to calculate optimal control directions in real time has been built to demonstrate the project success. Numerical simulations have been conducted using the full-size Western Electricity Coordinating Council (WECC) system model, and they clearly demonstrated the feasibility and the effectiveness of the developed technology. Recommendations for the future work have also been formulated.

  9. Comparison with traditional calibration Wide Area Camera Calibration Using

    E-Print Network [OSTI]

    Stanford University

    Comparison with traditional calibration Wide Area Camera Calibration Using Virtual Calibration Objects Xing Chen, James Davis, Philipp Slusallek Goal Calibrate many cameras arranged to cover a wide area working volume. Building a large physical calibration object is impractical. Solution Build

  10. Benefits of Site-wide NEPA National Environmental Policy Act...

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

    Benefits of Site-wide NEPA National Environmental Policy Act Review (1994) Benefits of Site-wide NEPA National Environmental Policy Act Review (1994) The purpose of this guidance...

  11. World Wide Web Internet and Web Information Systems

    E-Print Network [OSTI]

    Cao, Longbing

    1 23 World Wide Web Internet and Web Information Systems ISSN 1386-145X World Wide Web DOI 10's request, provided it is not made publicly available until 12 months after publication. #12;World Wide Web worlds. Its detection is a typical use case of the broad-based Wisdom Web of Things (W2T) methodology

  12. International Journal of Phytoremediation, 11:313328, 2009 Copyright C Taylor & Francis Group, LLC

    E-Print Network [OSTI]

    Ma, Lena

    health include cancer, diabetes, and cardiovascular diseases (Abernathy et al., 2003; Guo, 2004; Pontius

  13. DOE Announces Webinars on Zero Energy Ready Homes, Wide Bandgap...

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

    on Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen and Fuel Cell Applications Webinar Sponsor: Fuel Cell Technologies Office The Energy...

  14. Portsmouth Proposed Plan for the Site-wide Waste Disposition...

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

    Proposed Plan for the Site-wide Waste Disposition Evaluation Project DOE has evaluated alternatives for managing waste that would be created by decomtamination and...

  15. USFS West Wide Programmatic Environmental Impact Statement Record...

    Open Energy Info (EERE)

    Programmatic Environmental Impact Statement Record of Decision Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: USFS West Wide...

  16. Y-12 Final Site-Wide Environmental Impact Statement Approved...

    National Nuclear Security Administration (NNSA)

    Final Site-Wide Environmental Impact Statement Approved | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile...

  17. Draft Site-Wide Environmental Impact Statement Nevada References...

    National Nuclear Security Administration (NNSA)

    Blog Home About Us Our Operations NNSA Office of General Counsel National Environmental Policy Act (NEPA) NEPA Reading Room Draft Site-Wide Environmental Impact...

  18. DOE Issues Final Site-Wide Environmental Impact Statement for...

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

    Security Site The U.S. Department of Energy, National Nuclear Security Administration (NNSA) has issued the Final Site-Wide Environmental Impact Statement (EIS) for the Nevada...

  19. Title Page for the Site-Wide Environmental Assessment

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

    1440 FINAL Site-Wide Environmental Assessment of the National Renewable Energy Laboratory's South Table Mountain Complex July 2003 U.S. DEPARTMENT OF ENERGY GOLDEN FIELD OFFICE...

  20. Cover Page for the Final Site-Wide Environmental Assessment

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

    1440 FINAL Site-Wide Environmental Assessment of the National Renewable Energy Laboratory's South Table Mountain Complex July 2003 U.S. DEPARTMENT OF ENERGY GOLDEN FIELD OFFICE...

  1. Wide Area Camera Calibration Using Virtual Calibration Objects

    E-Print Network [OSTI]

    Stanford University

    Wide Area Camera Calibration Using Virtual Calibration Objects Xing Chen, James Davis, Philipp}@graphics.stanford.edu Abstract This paper introduces a method to calibrate a wide area system of unsynchronized cameras construction of a large calibration object. The user need only wave an identifiable point in front of all

  2. Using the World Wide Web Learning Communities in K-12

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    3.95 #12;commonly perform. Essential to all types of learning communities is access to resourcesUsing the World Wide Web to Build Learning Communities in K-12 Douglas N. Gordin, Louis M. Gomez in Learning Communities 3. The World Wide Web 4. Access to Resources 5. Access to Analysis Tools and Raw Data

  3. World Wide WebWWWDeep Web Web Deep Web

    E-Print Network [OSTI]

    Deep Web Web World Wide WebWWWDeep Web Web Deep Web Deep Web Deep Web Deep Web Deep Web 1 World Wide Web [1] Web 200,000TB Web Web Web Internet Web Web Web "" Surface Web Deep Web Surface Web 21.3% Surface Web Deep Web [2] Deep Web Web Crawler Deep Web 1 Web

  4. How Big Is the World Wide Web? Adrian Dobra

    E-Print Network [OSTI]

    How Big Is the World Wide Web? Adrian Dobra Department of Statistics Carnegie Mellon University of sound proce­ dures for assessing the size of the World Wide Web. The problem is compounded by the fact that sampling directly from the Web is not possible. Several groups of re­ searchers have found sampling schemes

  5. Last Name First Name Company Apicella Doug Henkel

    E-Print Network [OSTI]

    John B. Haldor Topsøe A/S Hayes Jim Consultant Jalalzadeh-Azar Ali National Renewable Energy Manheim Amy DOE McKay Mike Department of Development, State of Ohio McQueen Shawna Energetics Incorporated Melaina Marc NREL Moreland Greg Sentech Novachek Frank Xcel Energy Patel Pinakin FuelCell Energy Penev

  6. Doug Hollett Gives Keynote Presentation at Stanford Geothermal...

    Energy Savers [EERE]

    Seismicity Protocol. Addthis Related Articles Energy Department Addresses Largest Gathering of Geothermal Energy Stakeholders DOE Releases Updated Induced Seismicity Protocol...

  7. Reach Survival Estimates, 2008 Bill Muir, Steve Smith, Doug Marsh,

    E-Print Network [OSTI]

    through the hydropower system #12;Outline · Juvenile travel time and survival through the hydropower the hydropower system · Data problem in lower river in 2008? · Percentage transported #12;Outline · Juvenile travel time and survival through the hydropower system · Data problem in lower river in 2008

  8. 10/24/11, Page 1 VITA -Doug Smith

    E-Print Network [OSTI]

    Yang, Zong-Liang

    -angle Subduction. Journal of Petrology 51, 1355-1379. doi: 10.1093/petrology/egq022 Smith, D., and Griffin, W. L States. Journal of Petrology 46, 1901-1924. Smith D., Connelly J. N., Manser K., Moser D. E., Housh T. B in peridotite xenoliths: Review, discussion, and implications. In Mantle Petrology: Field Observations and High

  9. Doug MacLellan 2014 Visual Arts and Communication,

    E-Print Network [OSTI]

    , sculpture, print media, digital video and new media, while also emphasizing the critical and theoretical courses in drawing, painting, print media, photography, sculpture, bio art and integrated media (digital imaging, sound and video). We offer a complete range of advanced, industry-standard digital media

  10. Doug MacLellan 2014 Communication, Media and Film

    E-Print Network [OSTI]

    that combines a social sciences, theory based format with digital media production. This makes our program Honours Program in Digital Journalism and Communication, Media and Film and other Combined Honours, Media and Film such as new media and digital culture; digital media production; popular culture

  11. From: Doug and Marje Merrill To: Congestion Study Comments Subject:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdf Flash2010-60.pdf2 DOEScienceNIETCMunsonNewacheck6:21 AM I am

  12. From: Doug and Marje Merrill To: Congestion Study Comments Subject:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy0.pdf Flash2010-60.pdf2 DOEScienceNIETCMunsonNewacheck6:21 AM I am4:47

  13. Geothermal Resources Council Annual Meeting - Doug Hollett Presentation,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: Congestion StudyForecasting.EnergyAlthough geothermal heat

  14. Geothermal Technologies Office Director Doug Hollett Keynotes at Annual

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: Congestion StudyForecasting.EnergyAlthoughYEAR IN REVIEWTechnical

  15. Geothermal Technologies Program Annual Peer Review Presentation By Doug

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: Congestion StudyForecasting.EnergyAlthoughYEARHollett | Department

  16. Doug Dearolph receives NNSA's Gold Medal of Excellence | National Nuclear

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTubahq.na.gov Office ofDepartment of Energy

  17. 10 Questions with Special Effects Designer Doug Roble | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platform is always evolving, so are our1pmChemical Engineer:of

  18. Doug Hollett Gives Keynote Presentation at Stanford Geothermal Workshop |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197E T ADRAFTJanuaryDominion Resources,Department of

  19. Geothermal Resources Council Annual Meeting - Doug Hollett Presentation, October 2011

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartmentCounsel Law StudentofPump

  20. Geothermal Technologies Program Annual Peer Review Presentation By Doug

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartmentCounsel Law StudentofPumpStudiesAnnual ReportHollett

  1. Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartmentCounsel Law StudentofPumpStudiesAnnual

  2. A wide-dynamic-range time-based CMOS imager

    E-Print Network [OSTI]

    O'Halloran, Micah G. (Micah Galletta), 1978-

    2008-01-01T23:59:59.000Z

    This thesis describes a novel dual-threshold time-based current sensing algorithm suitable for use in wide-dynamic-range CMOS imagers. A prototype 150 x 256 pixel imager employing this algorithm experimentally achieves ...

  3. Section S Summary of the Site-Wide Environmental Assessment

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

    Degradation Due to the Locations and Designs of New Facilities and Associated Lighting, Especially on Top of South Table Mountain. Final EA Page S-4 July 2003 Site-Wide...

  4. Chemistry & Biology Genome-Wide High-Throughput Mining

    E-Print Network [OSTI]

    Yin, Jun

    Chemistry & Biology Article Genome-Wide High-Throughput Mining of Natural-Product Biosynthetic Gene.01.006 SUMMARY We have developed a phage-display method for high-throughput mining of bacterial gene clus- ters

  5. Department-wide Quick Reaction Work Order System

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1981-03-12T23:59:59.000Z

    To describe the new Department Wide Quick Reaction Work Order System, to establish the criteria and procedures for its use, and to identify responsibilities for managing and operating the system.

  6. Variable rate CELP speech coding using widely variable parameter updates

    E-Print Network [OSTI]

    Moodie, Myron L.

    1995-01-01T23:59:59.000Z

    bit rates for a given quality level. This work develops new techniques, referred to as widely variable CELP parameter updates, which dynamically adapt the transmit frequency of the CELP spectral parameters to the characteristics of the input speech...

  7. Social Network Theory, Broadband and the World Wide Web

    E-Print Network [OSTI]

    Sgroi, Daniel

    2006-03-14T23:59:59.000Z

    This paper aims to predict some possible futures for the World Wide Web based on several key network parameters: size, complexity, cost and increasing connection speed thorough the uptake of broadband technology. This is done through the production...

  8. Genome-wide analyses using bead-based microarrays

    E-Print Network [OSTI]

    Dunning, Mark J

    2008-09-04T23:59:59.000Z

    Microarrays are now an established tool for biological research and have a wide range of applications. In this thesis I investigate the BeadArray microarray technology developed by Illumina. The design of this technology is unique and gives rise...

  9. A Study of Transport Protocols for Wide Area Scientific Applications

    SciTech Connect (OSTI)

    Vishal Misra

    2011-03-01T23:59:59.000Z

    This is the final project report of award "A Study of Transport Protocols for Wide Area Scientific Applications", given by DOE in 2003 to Vishal Misra at Columbia University.

  10. DOE/OIT Plant-Wide Energy Assessment Experience Summary

    E-Print Network [OSTI]

    Olszewski, M.; Leach, R.; McElhaney, K.

    The Department of Energy (DOE) Office of Industrial Technologies (OIT) is sponsoring cost-shared, plant-wide energy assessments of industrial facilities through its BestPractices Program. The purpose of these assessments is to examine plant utility...

  11. Snap: Robust Tool for Internet-wide Operating System Fingerprinting

    E-Print Network [OSTI]

    Nandwani, Ankur Bharatbhushan

    2012-02-14T23:59:59.000Z

    SNAP: ROBUST TOOL FOR INTERNET-WIDE OPERATING SYSTEM FINGERPRINTING A Thesis by ANKUR BHARATBHUSHAN NANDWANI Submitted to the O?ce of Graduate Studies of Texas A&M University in partial fulflllment of the requirements for the degree... of MASTER OF SCIENCE December 2010 Major Subject: Computer Science SNAP: ROBUST TOOL FOR INTERNET-WIDE OPERATING SYSTEM FINGERPRINTING A Thesis by ANKUR BHARATBHUSHAN NANDWANI Submitted to the O?ce of Graduate Studies of Texas A&M University...

  12. A Wide Temperature Range Cryostat for Polarised Target Material Preparation

    E-Print Network [OSTI]

    Dutz, Hartmut

    with current I and target density nt t 1 f 2 · P2 t · L · A2 t FOM = f 2 · P2 t · L is defining quality of frequency e + p DNP requirement: N Tn Te n Scott Reeve Wide Temperature · T Linear dependence of m on P laminar flow profile Falmer Scott Reeve Wide Temperature Range Cryostat 11

  13. Measuring Meaning on the World-Wide Web

    E-Print Network [OSTI]

    Aerts, Diederik

    2010-01-01T23:59:59.000Z

    We introduce the notion of the 'meaning bound' of a word with respect to another word by making use of the World-Wide Web as a conceptual environment for meaning. The meaning of a word with respect to another word is established by multiplying the product of the number of webpages containing both words by the total number of webpages of the World-Wide Web, and dividing the result by the product of the number of webpages for each of the single words. We calculate the meaning bounds for several words and analyze different aspects of these by looking at specific examples.

  14. Development of a World Wide Web based quiz management system

    E-Print Network [OSTI]

    Taylor, Shannon Carol

    1997-01-01T23:59:59.000Z

    over the World Wide Web (WWW) using a WWW browser that is frame-capable. This system would allow instructors to assign quizzes to be taken outside of lecture time on the Internet, which would allow them more lecture time. This system also allows users...

  15. ORIGINAL RESEARCH Systematic family-wide analysis of sodium bicarbonate

    E-Print Network [OSTI]

    Hall, Randy A

    ORIGINAL RESEARCH Systematic family-wide analysis of sodium bicarbonate cotransporter NBCn1/SLC4A7/NBCn1 pulled down syntrophin c2 and con- versely GST/syntrophin c2 pulled down NBCn1. Moreover normally moves Na+ and HCO3 Ã? into cells and protects intracel- lular pH (pHi) from falling below normal

  16. aid policy wide: Topics by E-print Network

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

    aid policy wide First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Aid, Policy and Peace CiteSeer Summary:...

  17. **NEW UNIVERSITY-WIDE MINOR ** Minor in Sustainable Energy

    E-Print Network [OSTI]

    Goldberg, Bennett

    **NEW UNIVERSITY-WIDE MINOR ** Minor in Sustainable Energy Energy is central. The Minor in Sustainable Energy allows a student in any four-year undergraduate School or College perspectives, as taught by faculty in those areas. The minor in Sustainable Energy is a collaborative effort

  18. Genome-Wide In Silico Identification of Transcriptional Regulators Controlling

    E-Print Network [OSTI]

    Shamir, Ron

    Genome-Wide In Silico Identification of Transcriptional Regulators Controlling the Cell Cycle networks that control gene transcription is one of the greatest challenges of functional genomics. Using human genomic sequences, models for binding sites of known transcription factors, and gene expression

  19. Supporting Generic Cost Models for Wide-Area Stream Processing

    E-Print Network [OSTI]

    Cetintemel, Ugur

    Supporting Generic Cost Models for Wide-Area Stream Processing Olga Papaemmanouil #1 , Ugur C¸ etintemel 2 , John Jannotti 2 # Deparment of Computer Science, Brandeis University, Waltham, MA, USA 1 olga and increased availability of receptors that report physical or software events has led to the emergence

  20. Data Mining Middleware for Wide Area High Performance Networks

    E-Print Network [OSTI]

    Grossman, Robert

    1 Data Mining Middleware for Wide Area High Performance Networks Robert L. Grossman*, Yunhong Gu, David Hanley, and Michal Sabala National Center for Data Mining, University of Illinois at Chicago, USA astronomical data from the Sloan Digital Sky Survey (SDSS) and the other involves computing histograms from

  1. Photocell utilizing a wide-bandgap semiconductor material

    DOE Patents [OSTI]

    Carlson, David E. (Yardley, PA); Williams, Brown F. (Princeton, NJ)

    1984-06-05T23:59:59.000Z

    A photocell comprises a p-i-n amorphous silicon structure having a wide bandgap layer adjacent to either the p-type or n-type layer. This structure reduces the absorption of light entering the photocell and the back-diffusion of minority carriers.

  2. Materials Technology for Energy Efficiency: Wide Bandgap Nanophotonics Lab

    E-Print Network [OSTI]

    University of Technology, Sydney

    28/3/2013 Materials Technology for Energy Efficiency: Wide Bandgap Nanophotonics Lab Honours such as low power lasers, molecular sensors and high efficiency light emitters. Several projects are currently of Technology Sydney is one of the leading technological universities in Australia and located in the heart

  3. STRUCTURE PREDICTION CASP AND OTHER COMMUNITY-WIDE

    E-Print Network [OSTI]

    Bourne, Philip E.

    Section VI STRUCTURE PREDICTION #12;#12;28 CASP AND OTHER COMMUNITY-WIDE ASSESSMENTS TO ADVANCE THE FIELD OF STRUCTURE PREDICTION Jenny Gu and Philip E. Bourne A MEASURE FOR SUCCESS In the early 1990s to the biological community and to measure the progress in this developing field of structure prediction. In part

  4. Traffic flow wide-area surveillance system definition

    SciTech Connect (OSTI)

    Allgood, G.O.; Ferrell, R.K.; Kercel, S.W.; Abston, R.A.; Carnal, C.L. [Oak Ridge National Lab., TN (United States); Moynihan, P.I. [Jet Propulsion Lab., Pasadena, CA (United States)

    1994-11-01T23:59:59.000Z

    Traffic Flow Wide-Area Surveillance (TFWAS) is a system for assessing the state of traffic flow over a wide area for enhanced traffic control and improved traffic management and planning. The primary purpose of a TFWAS system is to provide a detailed traffic flow description and context description to sophisticated traffic management and control systems being developed or envisioned for the future. A successful TFWAS system must possess the attributes of safety, reconfigurability, reliability, and expandability. The primary safety premise of TFWAS is to ensure that no action or failure of the TFWAS system or its components can result in risk of injury to humans. A wide variety of communication techniques is available for use with TFWAS systems. These communication techniques can be broken down into two categories, landlines and wireless. Currently used and possible future traffic sensing technologies have been examined. Important criteria for selecting TFWAS sensors include sensor capabilities, costs, operational constraints, sensor compatibility with the infrastructure, and extent. TFWAS is a concept that can take advantage of the strengths of different traffic sensing technologies, can readily adapt to newly developed technologies, and can grow with the development of new traffic control strategies. By developing innovative algorithms that will take information from a variety of sensor types and develop descriptions of traffic flows over a wide area, a more comprehensive understanding of the traffic state can be provided to the control system to perform the most reasonable control actions over the entire wide area. The capability of characterizing the state of traffic over an entire region should revolutionize developments in traffic control strategies.

  5. Comparison of Wide-Bandgap Semiconductors for Power Electronics Applications

    SciTech Connect (OSTI)

    Ozpineci, B.

    2004-01-02T23:59:59.000Z

    Recent developmental advances have allowed silicon (Si) semiconductor technology to approach the theoretical limits of the Si material; however, power device requirements for many applications are at a point that the present Si-based power devices cannot handle. The requirements include higher blocking voltages, switching frequencies, efficiency, and reliability. To overcome these limitations, new semiconductor materials for power device applications are needed. For high power requirements, wide-bandgap semiconductors like silicon carbide (SiC), gallium nitride (GaN), and diamond, with their superior electrical properties, are likely candidates to replace Si in the near future. This report compares wide-bandgap semiconductors with respect to their promise and applicability for power applications and predicts the future of power device semiconductor materials.

  6. Two wide-angle imaging neutral-atom spectrometers

    SciTech Connect (OSTI)

    McComas, D.J.

    1997-12-31T23:59:59.000Z

    The Two Wide-angle Imaging Neutral-atom Spectrometers (TWINS) mission provides a new capability for stereoscopically imaging the magnetosphere. By imaging the charge exchange neutral atoms over a broad energy range (1 < E , {approximately} 100 keV) using two identical instruments on two widely-spaced high-altitude, high-inclination spacecraft, TWINS will enable the 3-dimensional visualization and the resolution of large scale structures and dynamics within the magnetosphere for the first time. These observations will provide a leap ahead in the understanding of the global aspects of the terrestrial magnetosphere and directly address a number of critical issues in the ``Sun-Earth Connections`` science theme of the NASA Office of Space Science.

  7. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, B.M.; Miyano, K.; Ketterson, J.B.

    1983-11-08T23:59:59.000Z

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed. 5 figs.

  8. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, Bernard M. (Oak Park, IL); Miyano, Kenjiro (Downers Grove, IL); Ketterson, John B. (Evanston, IL)

    1983-01-01T23:59:59.000Z

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

  9. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, B.M.; Miyano, K.; Ketterson, J.B.

    1981-03-05T23:59:59.000Z

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

  10. A Cosmology Calculator for the World Wide Web

    E-Print Network [OSTI]

    Edward L. Wright

    2006-10-10T23:59:59.000Z

    A cosmology calculator that computes times and distances as a function of redshift for user-defined cosmological parameters is available on the World Wide Web. This note gives the formulae used by the cosmology calculator and discusses some of its implementation. A version of the calculator that allows one to specify the equation of state parameter w and w' and neutrino masses, and a version for converting the light travel times usually given in the popular press into redshifts are also available.

  11. Wide-area situation awareness in electric power grid

    SciTech Connect (OSTI)

    Greitzer, Frank L.

    2010-04-28T23:59:59.000Z

    Two primary elements of the US energy policy are demand management and efficiency and renewable sources. Major objectives are clean energy transmission and integration, reliable energy transmission, and grid cyber security. Development of the Smart Grid seeks to achieve these goals by lowering energy costs for consumers, achieving energy independence and reducing greenhouse gas emissions. The Smart Grid is expected to enable real time wide-area situation awareness (SA) for operators. Requirements for wide-area SA have been identified among interoperability standards proposed by the Federal Energy Regulatory Commission and the National Institute of Standards and Technology to ensure smart-grid functionality. Wide-area SA and enhanced decision support and visualization tools are key elements in the transformation to the Smart Grid. This paper discusses human factors research to promote SA in the electric power grid and the Smart Grid. Topics that will be discussed include the role of human factors in meeting US energy policy goals, the impact and challenges for Smart Grid development, and cyber security challenges.

  12. Science with a wide-field UV transient explorer

    SciTech Connect (OSTI)

    Sagiv, I.; Gal-Yam, A.; Ofek, E. O.; Waxman, E.; Trakhtenbrot, B.; Topaz, J. [Benoziyo Center for Astrophysics, Weizmann Institute of Science, 76100 Rehovot (Israel); Aharonson, O. [Helen Kimmel Center for Planetary Science, Weizmann Institute of Science, 76100 Rehovot (Israel); Kulkarni, S. R.; Phinney, E. S. [Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States); Nakar, E.; Maoz, D. [School of Physics and Astronomy, Tel Aviv University, 93387 Tel Aviv (Israel); Beichman, C. [Division of Geophysics and Planetary Science, California Institute of Technology, Pasadena, CA 91105 (United States); Murthy, J. [Indian Institute of Astrophysics, Koramangala, Bangalore 560034 (India); Worden, S. P. [NASA Ames Research Center, Moffett Field, CA 94035 (United States)

    2014-04-01T23:59:59.000Z

    The time-variable electromagnetic sky has been well-explored at a wide range of wavelengths. In contrast, the ultra-violet (UV) variable sky is relatively poorly explored, even though it offers exciting scientific prospects. Here, we review the potential scientific impact of a wide-field UV survey on the study of explosive and other transient events, as well as known classes of variable objects, such as active galactic nuclei and variable stars. We quantify our predictions using a fiducial set of observational parameters which are similar to those envisaged for the proposed ULTRASAT mission. We show that such a mission would be able to revolutionize our knowledge about massive star explosions by measuring the early UV emission from hundreds of events, revealing key physical parameters of the exploding progenitor stars. Such a mission would also detect the UV emission from many tens of tidal-disruption events of stars by supermassive black holes at galactic nuclei and enable a measurement of the rate of such events. The overlap of such a wide-field UV mission with existing and planned gravitational-wave and high-energy neutrino telescopes makes it especially timely.

  13. Extreme multiplex spectroscopy at wide-field 4-m telescopes

    E-Print Network [OSTI]

    Robert Content; Tom Shanks

    2008-08-18T23:59:59.000Z

    We describe the design and science case for a spectrograph for the prime focus of classical 4-m wide-field telescopes that can deliver at least 4000 MOS slits over a 1 degree field. This extreme multiplex capability means that 25000 galaxy redshifts can be measured in a single night, opening up the possibilities for large galaxy redshift surveys out to z~0.7 and beyond for the purpose of measuring the Baryon Acoustic Oscillation (BAO) scale and for many other science goals. The design features four cloned spectrographs and exploits the exclusive possibility of tiling the focal plane of wide-field 4-m telescopes with CCDs for multi-object spectroscopic purposes. In ~200 night projects, such spectrographs have the potential to make galaxy redshift surveys of ~6 million galaxies over a wide redshift range and thus may provide a low-cost alternative to other survey routes such as WFMOS and SKA. Two of these extreme multiplex spectrographs are currently being designed for the AAT (NG1dF) and Calar Alto (XMS) 4-m class telescopes. NG2dF, a larger version for the AAT 2 degree field, would have 12 clones and at least 12000 slits. The clones use a transparent design including a grism in which all optics are smaller than the clone square subfield so that the clones can be tightly packed with little gaps between the contiguous fields. Only low cost glasses are used; the variations in chromatic aberrations between bands are compensated by changing one or two of the lenses adjacent to the grism. The total weight and length is smaller with a few clones than a unique spectrograph which makes it feasible to place the spectrograph at the prime focus.

  14. The Wide Field Spectrograph (WiFeS)

    E-Print Network [OSTI]

    Michael Dopita; John Hart; Peter McGregor; Patrick Oates; Gabe Bloxham; Damien Jones

    2007-05-02T23:59:59.000Z

    This paper describes the Wide Field Spectrograph (WiFeS) under construction at the Research School of Astronomy and Astrophysics (RSAA) of the Australian National University (ANU) for the ANU 2.3m telescope at the Siding Spring Observatory. WiFeS is a powerful integral field, double-beam, concentric, image-slicing spectrograph designed to deliver excellent thoughput, wavelength stability, spectrophotometric performance and superb image quality along with wide spectral coverage throughout the 320-950 nm wavelength region. It provides a 25x38 arcsec. field with 0.5 arcsec. sampling along each of twenty five 38X1 arcsec slitlets. The output format is optimized to match the 4096x4096 pixel CCD detectors in each of two cameras individually optimized for the blue and the red ends of the spectrum, respectively. A process of "interleaved nod-and-shuffle" will be applied to permit quantum noise-limited sky subtraction. Using VPH gratings, spectral resolutions of 3000 and 7000 are provided. The full spectral range is covered in a single exposure at R=3000, and in two exposures in the R=7000 mode. The use of transmissive coated optics, VPH gratings and optimized mirror coatings ensures a throughput (including telescope atmosphere and detector) > 30% over a wide spectral range. The concentric image-slicer design ensures an excellent and uniform image quality across the full field. To maximize scientific return, the whole instrument is configured for remote observing, pipeline data reduction, and the accumulation of calibration image libraries.

  15. Development of Autonomous Magnetometer Rotorcraft For Wide Area Assessment

    SciTech Connect (OSTI)

    Mark D. McKay; Matthew O. Anderson

    2011-08-01T23:59:59.000Z

    Large areas across the United States and internationally are potentially contaminated with unexploded ordinance (UXO), with some ranges encompassing tens to hundreds of thousands of acres. Technologies are needed which will allow for cost effective wide area scanning with (1) near 100% coverage and (2) near 100% detection of subsurface ordnance or features indicative of subsurface ordnance. The current approach to wide area assessment is a multi-level one, in which medium - altitude fixed wing optical imaging is used for an initial site assessment. This assessment is followed with low altitude manned helicopter based magnetometry. Subsequent to this wide area assessment targeted surface investigations are performed using either towed geophysical sensor arrays or man portable sensors. In order to be an effective tool for small UXO detection, the sensing altitude for magnetic site investigations needs to be on the order of 1 to 3 meters. These altitude requirements mean that manned helicopter surveys will generally only be feasible in large, open and relatively flat terrains. While such surveys are effective in mapping large areas relatively fast there are substantial mobilization/demobilization, staffing and equipment costs associated with these surveys, resulting in costs of approximately $100-$150/acre. In addition, due to the low altitude there are substantial risks to pilots and equipment. Surface towed arrays provide highresolution maps but have other limitations, e.g. in their ability to navigate rough terrain effectively. Thus there is a need for other systems, which can be used for effective data collection. An Unmanned Aerial Vehicle (UAV) magnetometer platform is an obvious alternative. The motivation behind such a system is that it reduces risk to operators, is lower in initial and Operational and Maintenance (O&M) costs (and can thus potentially be applied to smaller sites) and has the potential of being more effective in terms of detection and possibly characterization (through the use of dynamic acquisition, i.e. survey mission in-flight reprioritization).

  16. Wide band cryogenic ultra-high vacuum microwave absorber

    DOE Patents [OSTI]

    Campisi, Isidoro E. (Newport News, VA)

    1992-01-01T23:59:59.000Z

    An absorber wave guide assembly for absorbing higher order modes of microwave energy under cryogenic ultra-high vacuum conditions, that absorbs wide-band multi-mode energy. The absorber is of a special triangular shape, made from flat tiles of silicon carbide and aluminum nitride. The leading sharp end of the absorber is located in a corner of the wave guide and tapers to a larger cross-sectional area whose center is located approximately in the center of the wave guide. The absorber is relatively short, being of less height than the maximum width of the wave guide.

  17. Wide band cryogenic ultra-high vacuum microwave absorber

    DOE Patents [OSTI]

    Campisi, I.E.

    1992-05-12T23:59:59.000Z

    An absorber waveguide assembly for absorbing higher order modes of microwave energy under cryogenic ultra-high vacuum conditions, that absorbs wide-band multi-mode energy. The absorber is of a special triangular shape, made from flat tiles of silicon carbide and aluminum nitride. The leading sharp end of the absorber is located in a corner of the waveguide and tapers to a larger cross-sectional area whose center is located approximately in the center of the wave guide. The absorber is relatively short, being of less height than the maximum width of the waveguide. 11 figs.

  18. EM Corporate Performance Measures - Complex Wide | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised FindingDepartmentDepartmentStatementEnergy EMEMofComplex Wide EM

  19. Wide range H[sub 2] sensor using catalytic alloys

    SciTech Connect (OSTI)

    Hughes, R.C.; Buss, R.J.; Reynolds, S.W.; Jenkins, M.W.; Rodriguez, J.L.

    1992-01-01T23:59:59.000Z

    A new Wide Range Hydrogen Sensor fabricated on a silicon chip is described. A single die measuring 4 mm by 4 mm has four different kinds of hydrogen sensors, a heater and a temperature-measuring thin metalfilm. Chemiresistors made from thin films of a Pd/Ni alloy give an accurate measure of hydrogen concentrations from 0.1 to 100%, while Metal-Insulator-Silicon (MIS) capacitors are used for hydrogen concentrations down to about 1 ppM. A microprocessor controlled circuit is described that combines temperature control and signal processing.

  20. Wide range H{sub 2} sensor using catalytic alloys

    SciTech Connect (OSTI)

    Hughes, R.C.; Buss, R.J.; Reynolds, S.W.; Jenkins, M.W.; Rodriguez, J.L.

    1992-12-31T23:59:59.000Z

    A new Wide Range Hydrogen Sensor fabricated on a silicon chip is described. A single die measuring 4 mm by 4 mm has four different kinds of hydrogen sensors, a heater and a temperature-measuring thin metalfilm. Chemiresistors made from thin films of a Pd/Ni alloy give an accurate measure of hydrogen concentrations from 0.1 to 100%, while Metal-Insulator-Silicon (MIS) capacitors are used for hydrogen concentrations down to about 1 ppM. A microprocessor controlled circuit is described that combines temperature control and signal processing.

  1. Securing Wide Area Measurement Systems | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015ParentsMiddle| DepartmentAchievementEnergyWide Area Measurement

  2. Sandia Energy - Sandia Wide-Bandgap Semiconductor Workshop

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home Distribution GridDocuments HomeDatabase on EngineATeachesWide-Bandgap

  3. National Training Center (NTC) Launches a New DOE-Wide Voluntary...

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

    National Training Center (NTC) Launches a New DOE-Wide Voluntary Training Reciprocity and Collaboration Initiative National Training Center (NTC) Launches a New DOE-Wide Voluntary...

  4. EIS-0281: Notice of Intent to Prepare a Site-Wide Environmental...

    Office of Environmental Management (EM)

    a Site-Wide Environmental Impact Statement Sandia National Laboratories, Albuquerque, New Mexico The Department of Energy (DOE) announces its intent to prepare a Site-Wide...

  5. EIS-0380: EPA Notice of Availability of the Final Site-Wide Environmen...

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

    EPA Notice of Availability of the Final Site-Wide Environmental Impact Statement EIS-0380: EPA Notice of Availability of the Final Site-Wide Environmental Impact Statement...

  6. SNP-based pathway enrichment analysis for genome-wide association studies

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    SNP: applying gene set enrichment analysis to SNP data fromdetection of pathway enrichment in genome-wide associational. : SNP-based pathway enrichment analysis for genome-wide

  7. FORMATION AND SURVIVABILITY OF GIANT PLANETS ON WIDE ORBITS

    SciTech Connect (OSTI)

    Vorobyov, Eduard I. [Institute for Computational Astrophysics, Saint Mary's University, Halifax, NS B3H 3C3 (Canada); Basu, Shantanu, E-mail: vorobyov@ap.smu.c, E-mail: basu@astro.uwo.c [Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 (Canada)

    2010-05-01T23:59:59.000Z

    Motivated by the recent discovery of massive planets on wide orbits, we present a mechanism for the formation of such planets via disk fragmentation in the embedded phase of star formation. In this phase, the forming disk intensively accretes matter from the natal cloud core and undergoes several fragmentation episodes. However, most fragments are either destroyed or driven into the innermost regions (and probably onto the star) due to angular momentum exchange with spiral arms, leading to multiple FU-Ori-like bursts and disk expansion. Fragments that are sufficiently massive and form in the late embedded phase (when the disk conditions are less extreme) may open a gap and evolve into giant planets on typical orbits of several tens to several hundreds of AU. For this mechanism to work, the natal cloud core must have sufficient mass and angular momentum to trigger the burst mode and also form extended disks of the order of several hundreds of AU. When mass loading from the natal cloud core diminishes and the main fragmentation phase ends, such extended disks undergo a transient episode of contraction and density increase, during which they may give birth to a last and survivable set of giant planets on wide and relatively stable orbits.

  8. Geological problems in radioactive waste isolation - A world wide review

    SciTech Connect (OSTI)

    Witherspoon, P.A. [Lawrence Berkeley Lab., CA (United States)

    1991-06-01T23:59:59.000Z

    The problem of isolating radioactive wastes from the biosphere presents specialists in the earth sciences with some of the most complicated problems they have ever encountered. This is especially true for high-level waste (HLW), which must be isolated in the underground and away from the biosphere for thousands of years. The most widely accepted method of doing this is to seal the radioactive materials in metal canisters that are enclosed by a protective sheath and placed underground in a repository that has been carefully constructed in an appropriate rock formation. Much new technology is being developed to solve the problems that have been raised, and there is a continuing need to publish the results of new developments for the benefit of all concerned. Table 1 presents a summary of the various formations under investigation according to the reports submitted for this world wide review. It can be seen that in those countries that are searching for repository sites, granitic and metamorphic rocks are the prevalent rock type under investigation. Six countries have developed underground research facilities that are currently in use. All of these investigations are in saturated systems below the water table, except the United States project, which is in the unsaturated zone of a fractured tuff.

  9. Measuring the neutrino mass from future wide galaxy cluster catalogues

    SciTech Connect (OSTI)

    Carbone, Carmelita; Moscardini, Lauro; Cimatti, Andrea [Dipartimento di Astronomia, Alma Mater Studiorum-Università di Bologna, via Ranzani 1, I-40127 Bologna (Italy); Fedeli, Cosimo, E-mail: carmelita.carbone@unibo.it, E-mail: cosimo.fedeli@astro.ufl.edu, E-mail: lauro.moscardini@unibo.it, E-mail: a.cimatti@unibo.it [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611 (United States)

    2012-03-01T23:59:59.000Z

    We present forecast errors on a wide range of cosmological parameters obtained from a photometric cluster catalogue of a future wide-field Euclid-like survey. We focus in particular on the total neutrino mass as constrained by a combination of the galaxy cluster number counts and correlation function. For the latter we consider only the shape information and the Baryon Acoustic Oscillations (BAO), while marginalising over the spectral amplitude and the redshift space distortions. In addition to the cosmological parameters of the standard ?CDM+? model we also consider a non-vanishing curvature, and two parameters describing a redshift evolution for the dark energy equation of state. For completeness, we also marginalise over a set of ''nuisance'' parameters, representing the uncertainties on the cluster mass determination. We find that combining cluster counts with power spectrum information greatly improves the constraining power of each probe taken individually, with errors on cosmological parameters being reduced by up to an order of magnitude. In particular, the best improvements are for the parameters defining the dynamical evolution of dark energy, where cluster counts break degeneracies. Moreover, the resulting error on neutrino mass is at the level of ?(M{sub ?}) ? 0.9 eV, comparable with that derived from present Ly? forest measurements and Cosmic Microwave background (CMB) data in the framework of a non-flat Universe. Further adopting Planck priors and reducing the number of free parameters to a ?CDM+? cosmology allows to place constraints on the total neutrino mass of ?(M{sub ?}) ? 0.08 eV, close to the lower bound enforced by neutrino oscillation experiments. Finally, in the optimistic case where uncertainties in the calibration of the mass-observable relation were so small to be neglected, the combination of Planck priors with cluster counts and power spectrum would constrain the total neutrino mass down to ?(M{sub ?}) ? 0.034 eV, i.e. the minimum neutrino mass predicted by oscillation experiments would be detected in a ?CDM framework. We thus show that galaxy clusters from future wide galaxy surveys will be an excellent tool for studying cosmology and fundamental physics.

  10. Wide-range radioactive-gas-concentration detector

    DOE Patents [OSTI]

    Anderson, D.F.

    1981-11-16T23:59:59.000Z

    A wide-range radioactive-gas-concentration detector and monitor capable of measuring radioactive-gas concentrations over a range of eight orders of magnitude is described. The device is designed to have an ionization chamber sufficiently small to give a fast response time for measuring radioactive gases but sufficiently large to provide accurate readings at low concentration levels. Closely spaced parallel-plate grids provide a uniform electric field in the active region to improve the accuracy of measurements and reduce ion migration time so as to virtually eliminate errors due to ion recombination. The parallel-plate grids are fabricated with a minimal surface area to reduce the effects of contamination resulting from absorption of contaminating materials on the surface of the grids. Additionally, the ionization-chamber wall is spaced a sufficient distance from the active region of the ionization chamber to minimize contamination effects.

  11. Modelling of monovacancy diffusion in W over wide temperature range

    SciTech Connect (OSTI)

    Bukonte, L., E-mail: laura.bukonte@helsinki.fi; Ahlgren, T.; Heinola, K. [Department of Physics, University of Helsinki, P.O. Box 43, 00014 Helsinki (Finland)

    2014-03-28T23:59:59.000Z

    The diffusion of monovacancies in tungsten is studied computationally over a wide temperature range from 1300?K until the melting point of the material. Our modelling is based on Molecular Dynamics technique and Density Functional Theory. The monovacancy migration barriers are calculated using nudged elastic band method for nearest and next-nearest neighbour monovacancy jumps. The diffusion pre-exponential factor for monovacancy diffusion is found to be two to three orders of magnitude higher than commonly used in computational studies, resulting in attempt frequency of the order 10{sup 15} Hz. Multiple nearest neighbour jumps of monovacancy are found to play an important role in the contribution to the total diffusion coefficient, especially at temperatures above 2/3 of T{sub m}, resulting in an upward curvature of the Arrhenius diagram. The probabilities for different nearest neighbour jumps for monovacancy in W are calculated at different temperatures.

  12. Wide-field surveys from the SNAP mission

    SciTech Connect (OSTI)

    agkim@lbl.gov

    2002-07-23T23:59:59.000Z

    The Supernova/Acceleration Probe (SNAP) is a proposed space-borne observatory that will survey the sky with a wide-field optical/NIR imager. The images produced by SNAP will have an unprecedented combination of depth, solid-angle, angular resolution, and temporal sampling. Two 7.5 square-degree fields will be observed every four days over 16 months to a magnitude depth of AB = 27.7 in each of nine filters. Co-adding images over all epochs will give an AB = 30.3 per filter. A 300 square-degree field will be surveyed with no repeat visits to AB = 28 per filter. The nine filters span 3500-17000 {angstrom}. Although the survey strategy is tailored for supernova and weak gravitational lensing observations, the resulting data supports a broad range of auxiliary science programs.

  13. The University of Hawaii Wide Field Imager (UHWFI)

    E-Print Network [OSTI]

    Klaus W. Hodapp; Andreas Seifahrt; Gerard A. Luppino; Richard Wainscoat; Ed Sousa; Hubert Yamada; Alan Ryan; Richard Shelton; Mel Inouye; Andrew J. Pickles; Yanko K. Ivanov

    2006-04-01T23:59:59.000Z

    The University of Hawaii Wide-Field Imager (UHWFI) is a focal compressor system designed to project the full half-degree field of the UH 2.2 m telescope onto the refurbished UH 8Kx8K CCD camera. The optics use Ohara glasses and are mounted in an oil-filled cell to minimize light losses and ghost images from the large number of internal lens surfaces. The UHWFI is equipped with a six-position filter wheel and a rotating sector blade shutter,both driven by stepper motors. The instrument saw first light in 2004 in an engineering mode. After filling the lens cell with index matching oil, integration of all software components into the user interface, tuning of the CCD performance, and the purchase of the final filter set, UHWFI is now fully commissioned at the UH 2.2 m telescope.

  14. Wide-Bandwidth Capture of Wire-Scanner Signals

    SciTech Connect (OSTI)

    Gruchalla, Michael E. [Los Alamos National Laboratory; Gilpatrick, John D. [Los Alamos National Laboratory; Sedillo, James Daniel [Los Alamos National Laboratory; Martinez, Derwin [Los Alamos National Laboratory

    2012-05-16T23:59:59.000Z

    Integrated charge collected on the sense wires of wire-scanner systems utilized to determine beam profile is generally the parameter of interest. The LANSCE application requires capturing the charge information macropulse-by-macropulse with macropulse lengths as long as 700 {micro}s at a maximum macropulse rate of 120 Hz. Also, for the LANSCE application, it is required that the integration be performed in a manner that does not require integrator reset between macropulses. Due to the long macropulse which must be accommodated and the 8.33 ms minimum pulse period, a simple R-C integrator cannot be utilized since there is insufficient time between macropulses to allow the integrator to adequately recover. The application of wide analog bandwidth to provide accurate pulse-by-pulse capture of the wire signals with digital integration of the wire signals to determine captured charge at each macropulse in applications with comparatively long macropulses and high pulse repetition rates is presented.

  15. Wide-Field Astronomical Surveys in the Next Decade

    SciTech Connect (OSTI)

    Strauss, Michael A.; /Princeton U.; Tyson, J.Anthony; /UC, Davis; Anderson, Scott F.; /Washington U., Seattle, Astron. Dept.; Axelrod, T.S.; /LSST Corp.; Becker, Andrew C.; /Washington U., Seattle, Astron. Dept.; Bickerton, Steven J.; /Princeton U.; Blanton, Michael R.; /New York U.; Burke, David L.; /SLAC; Condon, J.J.; /NRAO, Socorro; Connolly, A.J.; /Washington U., Seattle, Astron. Dept.; Cooray, Asantha R.; /UC, Irvine; Covey, Kevin R.; /Harvard U.; Csabai, Istvan; /Eotvos U.; Ferguson, Henry C.; /Baltimore, Space Telescope Sci.; Ivezic, Zeljko; /Washington U., Seattle, Astron. Dept.; Kantor, Jeffrey; /LSST Corp.; Kent, Stephen M.; /Fermilab; Knapp, G.R.; /Princeton U.; Myers, Steven T.; /NRAO, Socorro; Neilsen, Eric H., Jr.; /Fermilab; Nichol, Robert C.; /Portsmouth U., ICG /Harish-Chandra Res. Inst. /Caltech, IPAC /Potsdam, Max Planck Inst. /Harvard U. /Hawaii U. /UC, Berkeley, Astron. Dept. /Baltimore, Space Telescope Sci. /NOAO, Tucson /Carnegie Mellon U. /Chicago U., Astron. Astrophys. Ctr.

    2011-11-14T23:59:59.000Z

    Wide-angle surveys have been an engine for new discoveries throughout the modern history of astronomy, and have been among the most highly cited and scientifically productive observing facilities in recent years. This trend is likely to continue over the next decade, as many of the most important questions in astrophysics are best tackled with massive surveys, often in synergy with each other and in tandem with the more traditional observatories. We argue that these surveys are most productive and have the greatest impact when the data from the surveys are made public in a timely manner. The rise of the 'survey astronomer' is a substantial change in the demographics of our field; one of the most important challenges of the next decade is to find ways to recognize the intellectual contributions of those who work on the infrastructure of surveys (hardware, software, survey planning and operations, and databases/data distribution), and to make career paths to allow them to thrive.

  16. Development of autonomous magnetometer rotorcraft for wide area assessment

    SciTech Connect (OSTI)

    Roelof Versteeg; Matt Anderson; Les Beard; Eric Corban; Darryl Curley; Jeff Gamey; Ross Johnson; Dwight Junkin; Mark McKay; Jared Salzmann; Mikhail Tchernychev; Suraj Unnikrishnan; Scott Vinson

    2010-04-01T23:59:59.000Z

    Large areas across the United States are potentially contaminated with UXO, with some ranges encompassing tens to hundreds of thousands of acres. Technologies are needed which will allow for cost effective wide area scanning with 1) near 100 % coverage and 2) near 100 % detection of subsurface ordnance or features indicative of subsurface ordnance. The current approach to wide area assessment is a multi-level one, in which medium - altitude fixed wing optical imaging is used for an initial site assessment. This assessment is followed with low altitude manned helicopter based magnetometry. Subsequent to this wide area assessment targeted surface investigations are performed using either towed geophysical sensor arrays or man portable sensors. In order to be an effective tool for small UXO detection, the sensing altitude for magnetic site investigations needs to be on the order of 1 – 3 meters. These altitude requirements mean that manned helicopter surveys will generally only be feasible in large, open and relatively flat terrains. While such surveys are effective in mapping large areas relatively fast there are substantial mobilization/demobilization, staffing and equipment costs associated with these surveys (resulting in costs of approximately $100-$150/acre). In addition, due to the low altitude there are substantial risks to pilots and equipment. Surface towed arrays provide high resolution maps but have other limitations, e.g. in their ability to navigate rough terrain effectively. There is thus a need for other systems which can be used for effective data collection. An UAV (Unmanned Aerial Vehicle) magnetometer platform is an obvious alternative. The motivation behind such a system is that it reduces risk to operators, is lower in initial and Operational and Maintenance (O&M) costs (and can thus potentially be applied to smaller sites) and has the potential of being more effective in terms of detection and possibly characterization (through the use of dynamic acquisition, i.e. survey mission inflight reprioritization). We describe and report on a one year effort with as primary goal to provide a recommendation to SERDP for a path forward in the implementation of one or more autonomous unmanned magnetometer rotorcraft platforms. This recommendation (which is provided in chapter 6) is based on the following three elements a) An assessment on the applicability of autonomous rotorcraft magnetometer systems to the current DoD site inventory, and an initial assessment of which type(s) of autonomous unmanned magnetometer rotorcraft platforms (in terms of performance characteristics such as payload, altitude, obstacle avoidance, production rate and flight time) would be most relevant to this inventory (chapter 3); b) An evaluation of the feasibility of assembling such platforms from commercial components (unmanned rotorcraft, control systems and sensors – both magnetometer sensors and supporting sensors). This evaluation included several highly successful field tests (chapter 4 and 5); c) A recommendation of the path forward, which includes a detailed outline of the efforts required in the design, assembly and testing of different modular platforms (chapter 6)

  17. The XMM-Newton Wide Angle Survey (XWAS)

    E-Print Network [OSTI]

    Esquej, P; Carrera, F J; Mateos, S; Tedds, J; Watson, M G; Corral, A; Ebrero, J; Krumpe, M; Rosen, S R; Ceballos, M T; Schwope, A; Page, C; Alonso-Herrero, A; Caccianiga, A; Della Ceca, R; Gonzalez-Martín, O; Lamer, G; Severgnini, P

    2013-01-01T23:59:59.000Z

    This programme is aimed at obtaining one of the largest X-ray selected samples of identified active galactic nuclei to date in order to characterise such a population at intermediate fluxes, where most of the Universe's accretion power originates. We present the XMM-Newton Wide Angle Survey (XWAS), a new catalogue of almost a thousand X-ray sources spectroscopically identified through optical observations. A sample of X-ray sources detected in 68 XMM-Newton pointed observations was selected for optical multi-fibre spectroscopy. Optical counterparts and corresponding photometry of the X-ray sources were obtained from the SuperCOSMOS Sky Survey. Candidates for spectroscopy were initially selected with magnitudes down to R~21, with preference for X-ray sources having a flux F(0.5-4.5 keV) >10^-14 erg s^-1 cm^-2. Optical spectroscopic observations performed at the Anglo Australian Telescope Two Degree Field were analysed, and the derived spectra were classified based on optical emission lines. We have identified ...

  18. Wide area augmentation of the Global Positioning System

    SciTech Connect (OSTI)

    Enge, P.; Walter, T.; Pullen, S.; Kee, C.; Chao, Y.C.; Tsai, Y.J. [Stanford Univ., CA (United States). Dept. of Aeronautics and Astronautics] [Stanford Univ., CA (United States). Dept. of Aeronautics and Astronautics

    1996-08-01T23:59:59.000Z

    The Wide Area Augmentation System (WAAS) is being deployed by the Federal Aviation Administration (FAA) to augment the Global Positioning System (GPS). The WAAS will aid GPS with the following three services. First, it will broadcast spread-spectrum ranging signals from communication satellites. The airborne WAAS receiver will add these new ranging signals to the GPS constellation of measurements. By so doing, the augmented position fix will be less sensitive to the failure of individual system components, thus improving time availability and continuity of service. Second, the WAAS will use a nationwide ground network to monitor the health of all satellites over the airspace and flag situations which threaten flight safety. This data will be modulated on to the WAAS ranging signals and broadcast to the users, thereby guaranteeing the integrity of the airborne position fix. Third, the WAAS will use the ground network to develop corrections for the errors which currently limit the accuracy of unaugmented GPS. This data will also be included on the WAAS broadcast and will improve position accuracy from approximately 100 m to 8 m. When complete, the augmented system will provide an accurate position fix from satellites to an unlimited number of aircraft across the nation. It will be the primary navigation system for aircraft in oceanic routes, enroute over domestic airspace, in crowded metropolitan airspaces, and on airport approach.

  19. WorldWide Telescope in Research and Education

    E-Print Network [OSTI]

    Goodman, Alyssa; Muench, August; Pepe, Alberto; Udomprasert, Patricia; Wong, Curtis

    2012-01-01T23:59:59.000Z

    The WorldWide Telescope computer program, released to researchers and the public as a free resource in 2008 by Microsoft Research, has changed the way the ever-growing Universe of online astronomical data is viewed and understood. The WWT program can be thought of as a scriptable, interactive, richly visual browser of the multi-wavelength Sky as we see it from Earth, and of the Universe as we would travel within it. In its web API format, WWT is being used as a service to display professional research data. In its desktop format, WWT works in concert (thanks to SAMP and other IVOA standards) with more traditional research applications such as ds9, Aladin and TOPCAT. The WWT Ambassadors Program (founded in 2009) recruits and trains astrophysically-literate volunteers (including retirees) who use WWT as a teaching tool in online, classroom, and informal educational settings. Early quantitative studies of WWTA indicate that student experiences with WWT enhance science learning dramatically. Thanks to the wealth ...

  20. Hanford’s Robust Safety Culture Gains One More Site-Wide Safety Standard

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – The safety of the Hanford Site workforce has been bolstered with another program added to the list of Site-wide Safety Standards. The latest Site-wide Safety Standard covers Fall Protection.

  1. E-Print Network 3.0 - automated lake-wide erosion Sample Search...

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

    G FIG. 8. Hourly lake-wide means of (a) wind... of hourly lake-wide mean wind and surface heat flux forecasts. Case Wind direction ( ) Mean diff. (F O) Mean... . The resul- tant...

  2. EIS-0387: DOE Notice of Availability of the Draft Site-Wide Environmen...

    Energy Savers [EERE]

    DOE Notice of Availability of the Draft Site-Wide Environmental Impact Statement EIS-0387: DOE Notice of Availability of the Draft Site-Wide Environmental Impact Statement Y-12...

  3. EA-0387: DOE Notice of Availability of the Final Site-Wide Environment...

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

    87: DOE Notice of Availability of the Final Site-Wide Environmental Impact Statement EA-0387: DOE Notice of Availability of the Final Site-Wide Environmental Impact Statement Y-12...

  4. EIS-0426: DOE Notice of Availability of the Draft Site-Wide Environmen...

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

    DOE Notice of Availability of the Draft Site-Wide Environmental Impact Statement and Notice of Public Hearings EIS-0426: DOE Notice of Availability of the Draft Site-Wide...

  5. High-power single mode solid state laser with short wide unstable cavity: Misprints

    E-Print Network [OSTI]

    Kouznetsov, Dmitrii

    1 High-power single mode solid state laser with short wide unstable cavity: Misprints D. Kouznetsov. Kouznetsov, J.-F. Bisson, K. Takaichi K. Ueda. High-power single mode solid state laser with short wide

  6. EIS-0309: Notice of Intent to Prepare a Site-Wide Environmental...

    Office of Environmental Management (EM)

    Notice of Intent to Prepare a Site-Wide Environmental Impact Statement EIS-0309: Notice of Intent to Prepare a Site-Wide Environmental Impact Statement Oak Ridge Y-12 Plant...

  7. agriculture faces world-wide: Topics by E-print Network

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

    12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 World Wide Web Search Engines 155 World Wide Web Computer Technologies and Information Sciences...

  8. accurate world-wide geophysical: Topics by E-print Network

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

    12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 World Wide Web Search Engines 155 World Wide Web Computer Technologies and Information Sciences...

  9. Steps for Switching to Digest Version of Daily Campus-wide Emails The "digest" version compiles all individual campus-wide emails sent through the Computing

    E-Print Network [OSTI]

    Selmic, Sandra

    Steps for Switching to Digest Version of Daily Campus-wide Emails The "digest" version compiles all) Under "Set Digest Mode," switch to "On." 8) Click the "Submit My Changes" button You're done! You should 24 hour period. To switch to the digest version for all campus-wide emails sent to students, faculty

  10. PURPOSE: This product provides simulation capabilities to allow water resource managers to meet operational and water quality objectives in a basin wide approach under the System-Wide

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Manage- ment System (CWMS). ERDC TN-SWWRP-11-2 February 2011 Meeting Water Quality and Water Control operational and water quality objectives in a basin wide approach under the System-Wide Water Resources the impact of water quality in reservoir operations system decision-making. As a result, integration

  11. Using Architectural Properties to Model and Measure System-Wide Graceful Degradation

    E-Print Network [OSTI]

    Koopman, Philip

    Using Architectural Properties to Model and Measure System-Wide Graceful Degradation ABSTRACT System-wide graceful degradation may be a viable approach to improving dependability in computer systems. In order to evaluate and improve system-wide graceful degradation we present initial work on a component

  12. How Large Is the World Wide Web? Adrian Dobra Stephen E. Fienberg

    E-Print Network [OSTI]

    Fienberg, Stephen E.

    How Large Is the World Wide Web? Adrian Dobra Stephen E. Fienberg National Institute of Department of the World Wide Web is extremely difficult because sampling directly from the Web is not possible. Several of the World Wide Web. Keywords Contingency tables; Markov chain Monte Carlo methods; Multiple­recapture models

  13. Weak-Axis Behavior of Wide Flange Columns Subjected to Blast

    E-Print Network [OSTI]

    Bruneau, Michel

    the effect of blast loading on wide flange columns loaded perpendicular to the weak axis of bending field detonations. Furthermore, past studies investigating the effect of blast load- ing on wide flangeWeak-Axis Behavior of Wide Flange Columns Subjected to Blast Nagarjun Krishnappa1 ; Michel Bruneau

  14. ON ACCURACY OF NUMERICAL EMC/EMI MODELING OVER A WIDE FREQUENCY RANGE

    E-Print Network [OSTI]

    Loyka, Sergey

    1 ON ACCURACY OF NUMERICAL EMC/EMI MODELING OVER A WIDE FREQUENCY RANGE Sergey Loyka EMC Lab: loyka@nemc.belpak.minsk.by Abstract - Numerical EMC/EMI modeling over a wide frequency range requires computational efficiency is proposed. I. INTRODUCTION Almost all the EMC problems are wide frequency range ones

  15. EIS-0380: DOE Notice of Availability of the Draft Site-Wide Environmen...

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

    Impact Statement Continued Operation of Los Alamos National Laboratory, Los Alamos, New Mexico NNSA announces the availability of the Draft Site-wide Environmental Impact...

  16. EA-1968: Site-Wide Environmental Assessment of the U.S. Department...

    Office of Environmental Management (EM)

    68: Site-Wide Environmental Assessment of the U.S. Department of Energy National Renewable Energy Laboratory (NREL) South Table Mountain (STM) Campus, Golden, Colorado EA-1968:...

  17. Wide Range of Mercury Contamination in Chicks of Southern Ocean Seabirds

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Wide Range of Mercury Contamination in Chicks of Southern Ocean Seabirds Pierre Blévina,* , Alice environment, Hg contamination was investigated within the large subantarctic seabird community of Kerguelen presented a wide range of Hg concentrations, with the highest contaminated species containing ~102 times

  18. A Site-Wide Perspective on Uranium Geochemistry at the Hanford Site

    E-Print Network [OSTI]

    PNNL-17031 A Site-Wide Perspective on Uranium Geochemistry at the Hanford Site J. Zachara C. Liu C of River Protection (ORP) #12;#12;PNNL-17031 A Site-Wide Perspective on Uranium Geochemistry at the Hanford with the Pacific Northwest National Laboratory (PNNL) and its collaborators. Significant research has more recently

  19. Should a vehicle fuel economy standard be combined with an economy-wide greenhouse gas

    E-Print Network [OSTI]

    Should a vehicle fuel economy standard be combined with an economy-wide greenhouse gas emissions: globalchange@mit.edu Website: http://globalchange.mit.edu/ #12;Should a vehicle fuel economy standard be combined with an economy-wide greenhouse gas emissions constraint? Implications for energy and climate

  20. Utilizing GQM+ Strategies for an Organization-Wide Earned Value Analysis

    E-Print Network [OSTI]

    Basili, Victor R.

    in software engineering standards or its body of knowledge. Earned value (management) is the resultUtilizing GQM+ Strategies for an Organization-Wide Earned Value Analysis 1 Vladimir Mandi´c, 2-wide earned value analysis by taking advan- tage of the hierarchical structure of the GQM+ Strategies grid

  1. Wide Ruled: A Friendly Interface to Author-Goal Based Story Generation

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Wide Ruled: A Friendly Interface to Author-Goal Based Story Generation James Skorupski1 , Lakshmi@cs.ucsc.edu 2 Electronic Arts Abstract. We present Wide Ruled, an authoring tool for the creation of generative stories. It is based on the Universe author-goal-based model of story generation, and extends this model

  2. Interactive Story Generation for Writers: Lessons Learned from the Wide Ruled Authoring Tool

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Interactive Story Generation for Writers: Lessons Learned from the Wide Ruled Authoring Tool James multi-disciplinary background in computational and narrative theory. Wide Ruled is an authoring tool be realized if we can create tools that open their authoring to a much wider audience. Typically, creating

  3. S.J. Quinney Law Library World Wide Web Acceptable Use Policy

    E-Print Network [OSTI]

    Capecchi, Mario R.

    S.J. Quinney Law Library World Wide Web Acceptable Use Policy The S.J. Quinney Library provides access to World Wide Web resources on its computer workstations as a service to its users: the faculty rooms is prohibited. Users may not load their own software on these workstations. While word processing

  4. 2013 China-Korea Relay Protection Forum Wide Area Protection Scheme Preventing Cascading Events based on

    E-Print Network [OSTI]

    Chen, Zhe

    2013 China-Korea Relay Protection Forum 1 Wide Area Protection Scheme Preventing Cascading Events from short circuits. A wide area protection scheme is proposed based on this improved im- pedance relay area protection 1 Introduction In many past blackouts, zone 3 impedance relay played an important role

  5. Genome-wide association study identifies three loci associated with melanoma risk

    E-Print Network [OSTI]

    Pennsylvania, University of

    Genome-wide association study identifies three loci associated with melanoma risk D Timothy Bishop1-wide association study of melanoma conducted by the GenoMEL consortium based on 317K tagging SNPs for 1 and cutaneous sun sensitivity, well-recognized melanoma risk factors. Common variants within the 9p21 locus have

  6. Sintered molybdenum for a metallized ceramic substrate packaging for the wide-

    E-Print Network [OSTI]

    Boyer, Edmond

    ; molybdenum; Spark Plasma Sintering I. INTRODUCTION Wide-bandgap semiconductors devices, such as silicon nitride (AlN) and molybdenum (Mo) is reported in this paper. This substrate is built using a spark plasmaSintered molybdenum for a metallized ceramic substrate packaging for the wide- bandgap devices

  7. Thermoelectric power measurements of wide band gap semiconducting Chul-Ho Lee,1

    E-Print Network [OSTI]

    Kim, Philip

    Thermoelectric power measurements of wide band gap semiconducting nanowires Chul-Ho Lee,1 Gyu online 13 January 2009 We investigated the temperature-dependent thermoelectric power TEP of individual concentration in wide band gap semiconducting nano- wires employing temperature-dependent thermoelectric power

  8. Fiber optics sensor for sub-nanometric displacement and wide bandwidth systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Fiber optics sensor for sub-nanometric displacement and wide bandwidth systems L. Perret, L. Ruaux, B. Cagneau, Y. Alayli, Fiber optics sensor for sub-nanometric displacement and wide bandwidth systems, Sensors and Actuators A Abstract , 165, 189-193 (2011). In this paper, we report fiber optics

  9. Person Wide Web: Active Location based Web Service Architecture using Wireless Infrastructure

    E-Print Network [OSTI]

    Kim, Yong Jung

    Person Wide Web: Active Location based Web Service Architecture using Wireless Infrastructure, we propose Person Wide Web (PWW), a new type of location based web service architecture that effectively recognizes the location specific web resources to the mobile device user based on his geographical

  10. Using the World Wide Web to Provide a Platform Independent Interface to High

    E-Print Network [OSTI]

    Using the World Wide Web to Provide a Platform Independent Interface to High Performance Computing the World Wide Web (WWW) as part of the ``Whole Frog'' project[1]. The success of this project indicates that the Web and its associated browsers can serve as an easily used and powerful front end to high

  11. Genome-wide association study of lung function phenotypes in a founder population

    E-Print Network [OSTI]

    Abney, Mark

    Genome-wide association study of lung function phenotypes in a founder population Tsung-Chieh Yao, Detroit, Mich, Baltimore, Md, Madison, Wis, and Taoyuan, Taiwan Background: Lung function is a long) associated with lung function. Methods: We performed a genome-wide association study (GWAS) of FEV1, forced

  12. Cherish every Joule: Maximizing throughput with an eye on network-wide energy consumption

    E-Print Network [OSTI]

    Hou, Y. Thomas

    Cherish every Joule: Maximizing throughput with an eye on network-wide energy consumption Canming: {jcm, yshi, thou, wjlou}@vt.edu Abstract Conserving network-wide energy consumption is becoming of wireless networks, the concern of energy consumption is becoming in- creasingly important for network

  13. System-Wide Energy Minimization for Real-Time Tasks: Lower Bound and

    E-Print Network [OSTI]

    Xu, Cheng-Zhong

    28 System-Wide Energy Minimization for Real-Time Tasks: Lower Bound and Approximation XILIANG ZHONG that minimizes system-wide energy consumption for both periodic and sporadic tasks. It is known that a system consists of processors and a number of other components. Energy-aware processors can be run in different

  14. Predicting hurricane regional landfall rates: comparing local and basin-wide track model approaches

    E-Print Network [OSTI]

    Hall, T; Hall, Tim; Jewson, Stephen

    2006-01-01T23:59:59.000Z

    We compare two methods for making predictions of the climatological distribution of the number of hurricanes making landfall along short sections of the North American coastline. The first method uses local data, and the second method uses a basin-wide track model. Using cross-validation we show that the basin-wide track model gives better predictions for almost all parts of the coastline. This is the first time such a comparison has been made, and is the first rigourous justification for the use of basin-wide track models for predicting hurricane landfall rates and hurricane risk.

  15. Wide dynamic range neutron flux monitor having fast time response for the Large Helical Device

    SciTech Connect (OSTI)

    Isobe, M., E-mail: isobe@nifs.ac.jp; Takeiri, Y. [National Institute for Fusion Science, Toki 509-5292 (Japan); Department of Fusion Science, The Graduate University for Advanced Studies, Toki 509-5292 (Japan); Ogawa, K.; Miyake, H.; Hayashi, H.; Kobuchi, T. [National Institute for Fusion Science, Toki 509-5292 (Japan); Nakano, Y.; Watanabe, K.; Uritani, A. [Department of Materials, Physics and Energy Engineering, Nagoya University, Nagoya 464-8603 (Japan); Misawa, T. [Kyoto University Research Reactor Institute, Kumatori 590-0494 (Japan); Nishitani, T. [Japan Atomic Energy Agency, Rokkasho 039-3212 (Japan); Tomitaka, M.; Kumagai, T.; Mashiyama, Y.; Ito, D.; Kono, S. [Toshiba Corporation, Fuchu 183-8511 (Japan); Yamauchi, M. [Toshiba Nuclear Engineering Services Corporation, Yokohama 235-8523 (Japan)

    2014-11-15T23:59:59.000Z

    A fast time response, wide dynamic range neutron flux monitor has been developed toward the LHD deuterium operation by using leading-edge signal processing technologies providing maximum counting rate up to ?5 × 10{sup 9} counts/s. Because a maximum total neutron emission rate over 1 × 10{sup 16} n/s is predicted in neutral beam-heated LHD plasmas, fast response and wide dynamic range capabilities of the system are essential. Preliminary tests have demonstrated successful performance as a wide dynamic range monitor along the design.

  16. Joint anisotropy characterization and image formation in wide-angle synthetic aperture radar

    E-Print Network [OSTI]

    Varshney, Kush R. (Kush Raj)

    2006-01-01T23:59:59.000Z

    Imagery formed from wide-angle synthetic aperture radar (SAR) measurements has fine cross-range resolution in principle. However, conventional SAR image formation techniques assume isotropic scattering, which is not valid ...

  17. Scale Matters: An Action Plan for Realizing Sector-Wide "Zero-Energy"

    E-Print Network [OSTI]

    , according to the Annual Energy Outlook [EIA Scale Matters: An Action Plan for Realizing Sector-Wide "Zero-Energy" Performance Goals in Commercial Buildings S. Selkowitz, J. Granderson, P. Haves, P. Mathew Environmental Energy Technologies

  18. UNCORRECTED 2 QoS and energy efficiency in network wide broadcasting

    E-Print Network [OSTI]

    Heinzelman, Wendi

    protocols (IEEE 802.11, CPS, and MH-TRACE) in terms of QoS (packet delivery ratio, packet delay, 12Characterizing the effects of medium access control on 50the behavior of network-wide broadcasting is essential

  19. Migration and the Sending Economy: A Disaggregated Rural Economy Wide Analysis

    E-Print Network [OSTI]

    Taylor, J. Edward; Dyer, George

    2006-01-01T23:59:59.000Z

    A Stylized Village Economy-Wide Model with Nonseparable FarmNetworks in the Modern Economy: Mexican Migrants in the U.S.in a Household-farm Economy. ” Journal of Development

  20. EIS-0238: Notice of Intent to Prepare a Site-Wide Environmental...

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

    EIS-0238: Notice of Intent to Prepare a Site-Wide Environmental Impact Statement Los Alamos National Laboratory The U.S. Department of Energy (DOE) announces its intent to...

  1. Characterizing non-coding hits in genome-wide association studies using epigenetic data

    E-Print Network [OSTI]

    Sarkar, Abhishek Kulshreshtha

    2013-01-01T23:59:59.000Z

    Understanding the molecular basis of human disease is one of the greatest challenges of our time, and recent explosion in genetic and genomic datasets are finally putting it within reach. In the last ten years, genome-wide ...

  2. Krill-eye : Superposition Compound Eye for Wide-Angle Imaging via GRIN Lenses

    E-Print Network [OSTI]

    Hiura, Shinsaku

    We propose a novel wide angle imaging system inspired by compound eyes of animals. Instead of using a single lens, well compensated for aberration, we used a number of simple lenses to form a compound eye which produces ...

  3. Quality of service analysis for audio over cellular voice networks and cellular wireless wide area networks

    E-Print Network [OSTI]

    Malik, Omair S. (Omair Safwan)

    2007-01-01T23:59:59.000Z

    Cellular Wireless Wide Area Networks (WWANs) are most prevalent and offer high-bandwidth data transfer. We believe WWANs can be availed for voice communications employing Voice Over IP technologies. Such a communication ...

  4. Webinar: Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen and Fuel Cell Applications

    Broader source: Energy.gov [DOE]

    The Energy Department will present a live webinar titled "Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen and Fuel Cell Applications" on Tuesday, October 21, at 12:00 p...

  5. New York State-wide Alternative Fuel Vehicle Program for Vehicles...

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

    and Peer Evaluation Meeting arravt053tibolton2012o.pdf More Documents & Publications New York State-wide Alternative Fuel Vehicle Program for Vehicles and Fueling Stations New...

  6. New York State-wide Alternative Fuel Vehicle Program for Vehicles...

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

    7-11, 2010 -- Washington D.C. tiarravt053bolton2010p.pdf More Documents & Publications New York State-wide Alternative Fuel Vehicle Program for Vehicles and Fueling Stations New...

  7. New York State-wide Alternative Fuel Vehicle Program for Vehicles...

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

    Review and Peer Evaluation arravt053tibolton2011p.pdf More Documents & Publications New York State-wide Alternative Fuel Vehicle Program for Vehicles and Fueling Stations New...

  8. Design of wide-area electric transmission networks under uncertainty : methods for dimensionality reduction

    E-Print Network [OSTI]

    Donohoo-Vallett, Pearl Elizabeth

    2014-01-01T23:59:59.000Z

    The growth of location-constrained renewable generators and the integration of electricity markets in the United States and Europe are forcing transmission planners to consider the design of interconnection-wide systems. ...

  9. Modeling genome-wide replication kinetics reveals a mechanism for regulation of replication timing

    E-Print Network [OSTI]

    Bechhoefer, John

    Modeling genome-wide replication kinetics reveals a mechanism for regulation of replication timing, University of Massachusetts Medical School, Worcester, MA, USA * Corresponding author. Department of Physics, testable, biochemically plausible mechanism for the regulation of replication timing in eukaryotes

  10. A comprehensive plant-wide assessment of Amcor PET Packaging at Fairfield, California

    SciTech Connect (OSTI)

    Kevin Losh; Hui Choi; Yin Yin Wu; Bryan W. Hackett; Ahmad R. Ganji

    2008-02-29T23:59:59.000Z

    This report includes the results of the plant-wide assessment of AMCOR PET plants in Fairfield, City of Commerce, and Lathrop California. The project (except the assessment of Lathrop plant) was a cost shared effort between US Department of Energy through Golden Field Office, Golden CO and AMCOR PET Packaging Co. The DOE share of the plant-wide assessment cost was awarded to AMCOR PET in response to the RFP DE-PS36-05GO95009, the 2005 round of funding for “Plant-Wide Energy Efficiency Opportunity Assessments.” The plant-wide assessment included the processes, electrical and gas equipment. Current production practices have been evaluated against best practice standards, as well as utilization of modern technology to improve energy efficiency, reduce the wastes, and improve productivity.

  11. Coupled finite element and meshfree method Application to wide-flange steel sections

    E-Print Network [OSTI]

    Yaw, Louis L.

    , 2007 Yaw, Kunnath & Sukumar Meshfree Inelastic Frame Analysis #12;Motivation Coupled finite element Inelastic Frame Analysis #12;Motivation Coupled finite element and meshfree method Application to wide & Sukumar Meshfree Inelastic Frame Analysis #12;Motivation Coupled finite element and meshfree method

  12. Longitudinal Genome-Wide Association of Cardiovascular Disease Risk Factors in the Bogalusa Heart Study

    E-Print Network [OSTI]

    Peltonen, Leena

    Cardiovascular disease (CVD) is the leading cause of death worldwide. Recent genome-wide association (GWA) studies have pinpointed many loci associated with CVD risk factors in adults. It is unclear, however, if these loci ...

  13. Timing performance of 30-nm-wide superconducting nanowire avalanche photodetectors

    E-Print Network [OSTI]

    Najafi, Faraz

    We investigated the timing jitter of superconducting nanowire avalanche photodetectors (SNAPs, also referred to as cascade-switching superconducting single-photon detectors) based on 30-nm-wide nanowires. At bias currents ...

  14. Graphical Models for Wide-Area Activity Analysis in Continuous Videos

    E-Print Network [OSTI]

    Nayak, Nandita Miyar

    2014-01-01T23:59:59.000Z

    2 Multi-person Activity Recognition in Wide-area Videos 2.1Context Modeling in Continuous Videos Using Graphical Modelsmethod. Given a continuous video with computed tracklets, a

  15. Webinar: Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen and Fuel Cell Applications

    Broader source: Energy.gov [DOE]

    Recording and text version of the Fuel Cell Technologies Office webinar titled "Opportunities for Wide Bandgap Semiconductor Power Electronics for Hydrogen and Fuel Cell Applications," originally presented on October 21, 2014.

  16. A Brief Guide: DOE-wide National Environmental Policy Act Contracts...

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

    May 2,2003 Office of NEPA Policy and Compliance (Mansoor, 202-586-9326) DOE-wide National Environmental Policy Act (NEPA) Contracts Secretarial Officers and Heads of Field...

  17. Effects of ethanol content on gasohol PFI engine wide-open-throttle operation

    E-Print Network [OSTI]

    Cheng, Wai K.

    The NOx emission and knock characteristics of a PFI engine operating on ethanol/gasoline mixtures were assessed at 1500 and 2000 rpm with ? =1 under Wide-Open-Throttle condition. There was no significant charge cooling due ...

  18. A World Wide Web key to the grass genera of Texas

    E-Print Network [OSTI]

    Dawson, John Edward

    2001-01-01T23:59:59.000Z

    of the world. C A B International. Wallingford, Oxon, U K . 7 APPENDIX A CD R O M F O R THE W O R L D WIDE WEB B A S E D K E Y TO GRASS G E N E R A T E X A S The World Wide Web Based Key to the Grass Genera of Texas is accessible by opening the file...

  19. Uncertainty Analysis Framework - Hanford Site-Wide Groundwater Flow and Transport Model

    SciTech Connect (OSTI)

    Cole, Charles R.; Bergeron, Marcel P.; Murray, Christopher J.; Thorne, Paul D.; Wurstner, Signe K.; Rogers, Phillip M.

    2001-11-09T23:59:59.000Z

    Pacific Northwest National Laboratory (PNNL) embarked on a new initiative to strengthen the technical defensibility of the predictions being made with a site-wide groundwater flow and transport model at the U.S. Department of Energy Hanford Site in southeastern Washington State. In FY 2000, the focus of the initiative was on the characterization of major uncertainties in the current conceptual model that would affect model predictions. The long-term goals of the initiative are the development and implementation of an uncertainty estimation methodology in future assessments and analyses using the site-wide model. This report focuses on the development and implementation of an uncertainty analysis framework.

  20. The Pet-Fish problem on the World-Wide Web

    E-Print Network [OSTI]

    Aerts, Diederik; D'Hooghe, Bart; Sozzo, Sandro

    2010-01-01T23:59:59.000Z

    We identify the presence of Pet-Fish problem situations and the corresponding Guppy effect of concept theory on the World-Wide Web. For this purpose, we introduce absolute weights for words expressing concepts and relative weights between words expressing concepts, and the notion of 'meaning bound' between two words expressing concepts, making explicit use of the conceptual structure of the World-Wide Web. The Pet-Fish problem occurs whenever there are exemplars - in the case of Pet and Fish these can be Guppy or Goldfish - for which the meaning bound with respect to the conjunction is stronger than the meaning bounds with respect to the individual concepts.

  1. Storage Alternatives for Mobile Computers \\Lambda Fred Douglis Ram'on C'aceres

    E-Print Network [OSTI]

    storage technologies offer two alter­ natives for file storage on mobile computers: magnetic hard disks Laboratories AT&T Bell Laboratories Frans Kaashoek Kai Li Massachusetts Institute of Technology Princeton University Brian Marsh Joshua A. Tauber D.E. Shaw & Co. Massachusetts Institute of Technology To appear

  2. Say What? Why users choose to speak their web queries Maryam Kamvar, Doug Beeferman

    E-Print Network [OSTI]

    Tomkins, Andrew

    a higher probability of being typed than shorter queries. Index Terms: speech, voice, search, Google, query of voice web search (where the query is entered by speaking rather than by keyboard) is sparse, most likely on an aggregate level factors that are correlated with a decision to speak a web search query rather than type it

  3. A Probabilistic Model of Redundancy in Information Extraction Doug Downey, Oren Etzioni, and Stephen Soderland

    E-Print Network [OSTI]

    Etzioni, Oren

    - formation (PMI) and the noisy-or model used in previous work. For supervised IE, the model's per- formance- formation (PMI) method [Etzioni et al., 2004], which is based on Turney's PMI-IR algorithm [Turney, 2001

  4. Comparative functional morphology of the primate peroneal process Rachel L. Jacobs a,*, Doug M. Boyer b

    E-Print Network [OSTI]

    Boyer, Doug M.

    . Boyer b , Biren A. Patel b a Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook, Stony Brook, New York 11794, USA a r t i c l e i n f o Article history: Received 7 July 2008 Accepted 12)1 , is characterized by a divergent and opposable hallux (e.g., Szalay and Dagosto, 1988; Gebo, 1993; Bloch and Boyer

  5. GTO Director Doug Hollett Delivers Keynote at the Nation's Largest Industry

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: FinalOffers3.pdf0-45.pdf0 Budget Fossil EnergyFullGO 2009 Annual NEPAPolicyGTO 2013

  6. Doug Hollett, Director Geothermal Technologies Office Geothermal R&D: The DOE Perspective

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197E T ADRAFTJanuaryDominion Resources,Department ofR&D:

  7. Doug Hollett, Director Geothermal Technologies Office Hot Rocks and Hard Places

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197E T ADRAFTJanuaryDominion Resources,Department

  8. OSTIblog Posts by Doug Bales | OSTI, US Dept of Energy, Office of

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronicCurvesSpeeding accessSpeeding accessSpeedingSpeedingScientificScientific

  9. Signature of Dennis Donati Signature of Dennis Donati Signature of Doug Dearolph

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysisDarby Dietrich Signature of Raymond

  10. THE HURRICANE IMAGING RADIOMETER WIDE SWATH SIMULATION AND WIND SPEED RETRIEVALS

    E-Print Network [OSTI]

    Ruf, Christopher

    THE HURRICANE IMAGING RADIOMETER WIDE SWATH SIMULATION AND WIND SPEED RETRIEVALS Ruba A. Amarin1 Space Flight Center, Huntsville, Alabama 4 NOAA/AOML/Hurricane Research Division, Miami, Florida, USA ABSTRACT The knowledge of peak winds in hurricanes is critical to classification of hurricane intensity

  11. Paul Sellin, Centre for Nuclear and Radiation Physics Mobility and lifetime mapping in wide bandgap

    E-Print Network [OSTI]

    Sellin, Paul

    Paul Sellin, Centre for Nuclear and Radiation Physics Mobility and lifetime mapping in wide bandgap1. Centre for Nuclear and Radiation Physics Department of Physics University of Surrey www, Hungary. #12;Paul Sellin, Centre for Nuclear and Radiation Physics Introduction r Development of compound

  12. Benefits of Green Energy and Proportionality in High Speed Wide Area Networks Connecting Data Centers

    E-Print Network [OSTI]

    Simunic, Tajana

    Benefits of Green Energy and Proportionality in High Speed Wide Area Networks Connecting Data Network ModelBackbone Network Model Green EnergyGreen Energy SPR vs. GEARSPR vs. GEAR All vs. Necessary (MuSyC), National Science Foundation (NSF) Project GreenLight, Energy Sciences Network (ESnet), NSF

  13. Unobservable Surfing on the World Wide Web: Is Private Information Retrieval an alternative to the MIX

    E-Print Network [OSTI]

    reasons for choosing PIR include: - Security: PIR provides perfect security (the technique itself (PIR) perfectly protects a user's access pattern to a database. An attacker cannot observe (or discuss the application of PIR on the World Wide Web and com- pare it to the MIX approach. We demonstrate

  14. NATURAL RESOURCES MANAGEMENT Opportunities are available with a wide array of local, national, and inter-

    E-Print Network [OSTI]

    NATURAL RESOURCES MANAGEMENT Opportunities are available with a wide array of local, national, and inter- national organizations and institutions involved in natural resource man- agement. Graduates natural resource and environ- mental problems. Positions are found with federal, state, and local govern

  15. Usage Mining for the World Wide Web WenChen Hu, wenchen@cs.und.edu

    E-Print Network [OSTI]

    Hu, Wen-Chen

    Usage Mining for the World Wide Web Wen­Chen Hu, wenchen@cs.und.edu Department of Computer Science@mail.tku.edu.tw Department of Information Engineering, Tamkang University, Tamsui, Taiwan ABSTRACT Web usage mining is used an overview and analysis of current Web usage mining technologies and systems. A Web usage mining system

  16. Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration

    E-Print Network [OSTI]

    Savazzi, Stefano

    Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration Stefano Savazzi1 of new oil and gas reservoir. Seismic exploration requires a large number (500 ÷ 2000 nodes, MAC and network layer to develop wireless sensors networks tailored for oil (and gas) exploration

  17. Issues Associated with the Development of a Wide-Area Analysis and Visualization Environment

    E-Print Network [OSTI]

    node-breaker model. Since the node-breaker model is much more dynamic than the simpler bus-branch type of the issues associated with the development of a wide-area analysis and visualization environment (WAVE data from multiple control areas, combine it into a unified model, analyze the model, and visualize

  18. ARTICLE doi:10.1038/nature11450 A metagenome-wide association study of

    E-Print Network [OSTI]

    Nielsen, Rasmus

    diabetes Junjie Qin1 *, Yingrui Li1 *, Zhiming Cai2 *, Shenghui Li1 *, Jianfeng Zhu1 *, Fan Zhang3 of gut microbiota has become a major research area in human disease, including type 2 diabetes, the most 2 diabetes, we developed a protocol for a metagenome-wide association study (MGWAS) and undertook

  19. Site-Wide Wrapper Induction for Life Science Deep Web Databases

    E-Print Network [OSTI]

    Staab, Steffen

    Site-Wide Wrapper Induction for Life Science Deep Web Databases Saqib Mir1,2 , Steffen Staab2-world biochemical deep Web sources and report our preliminary results, which are very promising. Keywords: Deep Web-paste actions, create temporary text-files and manually link records. #12;"Deep Web" research aims to virtually

  20. HAPs, Micromaps and GPL Visualization of Geographically Referenced Statistical Summaries on the World Wide Web

    E-Print Network [OSTI]

    Symanzik, Jürgen

    ) hazardous air pollutant (HAP) data on the World Wide Web (WWW). Long­term cumulative concentrations for 148.S. Environmental Protection Agency (EPA) hazardous air pollutant (HAP ­ also called air toxics) data on the World concentration estimates of 148 air toxics for every census tract in the continental United States. Air toxics

  1. A New Server Selection Strategy for Reliable Server Pooling in Widely Distributed Environments

    E-Print Network [OSTI]

    Dreibholz, Thomas

    A New Server Selection Strategy for Reliable Server Pooling in Widely Distributed Environments Xing a generic, application- independent and resource-efficient framework for server redundancy and session failover, the IETF RSerPool WG is currently standardizing the Reliable Server Pooling (RSerPool) framework

  2. Wide-angle seismic constraints on the internal structure of Tenerife, Canary Islands

    E-Print Network [OSTI]

    Watts, A. B. "Tony"

    Wide-angle seismic constraints on the internal structure of Tenerife, Canary Islands J.P. Canalesa of Tenerife, Canary Islands. The experiment was designed as a seismic fan pro®le to detect azimuthal rights reserved. Keywords: seismic structure; P-wave velocity anomaly; Tenerife; Canary Islands 1

  3. Ultrasonic absorption frequency dependence of two widely used anti-cancer drugs

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    the ultrasound absorption properties of doxorubicin (DOX) at several temperatures. At physiological temperatures, we found enhanced ultrasound absorption from DOX, and its closely related analogue daunorubicin (DNR efficacyof a widely used anti-cancer agent, namely doxorubicin (DOX), when exposed to therapeutic intensity

  4. Genome-wide In-silico Identification of Transcriptional Regulators Controlling Cell Cycle in Human Cells

    E-Print Network [OSTI]

    Shamir, Ron

    - 1 - Genome-wide In-silico Identification of Transcriptional Regulators Controlling Cell Cycle-3-6409760 Fax: 972-3-6407471 e-mail: yossih@post.tau.ac.il Running title: Transcriptional regulation of human cell cycle Key words: Transcriptional regulation, cell cycle, functional genomics. #12;- 2 - Abstract

  5. The Potential to Coordinate Digital Simulations for UK-wide VET

    E-Print Network [OSTI]

    Crawford, Ian

    Vocational Teaching and Learning London Knowledge Lab July 2013 #12;Digital Simulations in VET 2 #12;DigitalThe Potential to Coordinate Digital Simulations for UK-wide VET Report to the Commission on Adult Simulations in VET 3 Contents Introduction

  6. The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)

    E-Print Network [OSTI]

    Bochanski, John J.

    We present ground-based spectroscopic verification of 6 Y dwarfs (see also Cushing et al.), 89 T dwarfs, 8 L dwarfs, and 1 M dwarf identified by the Wide-field Infrared Survey Explorer (WISE). Eighty of these are cold brown ...

  7. PageSim: A Novel Link-based Similarity Measure for the World Wide Web

    E-Print Network [OSTI]

    King, Kuo Chin Irwin

    PageSim: A Novel Link-based Similarity Measure for the World Wide Web Zhenjiang Lin, Irwin King the similarity between web pages arises in many applications on the Web, such as web searching engine and web document classification. According to the unique characteristics of the Web, which are huge, rapidly

  8. Proceedings of the Western Protective Relay Conference, Spokane, WA, 2006 New wide-area algorithms for

    E-Print Network [OSTI]

    - 1 - Proceedings of the Western Protective Relay Conference, Spokane, WA, 2006 New wide (for N-1 contingency) or with the help of Special Protection Schemes (SPS) or Remedial Action Schemes of the relay actions that may have resulted in the angle stability phenomenon. The concept of a real

  9. INTRODUCTION Teleost fish have evolved a wide array of mechanisms for the

    E-Print Network [OSTI]

    Tricas, Timothy C.

    developmental pattern of vocal musculature and innervation among ray-finned fish and tetrapods (Bass et al3881 INTRODUCTION Teleost fish have evolved a wide array of mechanisms for the production of sound (Ladich, 2001; Ladich and Bass, 2003; Ladich and Bass, 2005). Some evidence exists for a conserved

  10. Local Genealogies in a Linear Mixed Model for Genome-Wide Association Mapping in Complex

    E-Print Network [OSTI]

    Schierup, Mikkel Heide

    Local Genealogies in a Linear Mixed Model for Genome-Wide Association Mapping in Complex Pedigreed fashion. Here, we present a complementary approach, called `GENMIX (genealogy based mixed model)' which combines advantages from two powerful GWAS methods: genealogy-based haplotype grouping and MMA. Subjects

  11. A New Powerful Method For Genome-wide Association Mapping Using Local Genealogies In A

    E-Print Network [OSTI]

    Mailund, Thomas

    A New Powerful Method For Genome-wide Association Mapping Using Local Genealogies In A Mixed Model G. Sahana* , T.Mailund , M.S. Lund* and B. Guldbrandtsen* Introduction Local genealogies are genealogies for the longest chromosome region around a marker that do not require recurrent mutation

  12. PRESS RELEASE Charles University in Prague opens its doors wide to the world -computer science

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    PRESS RELEASE Charles University in Prague opens its doors wide to the world - computer science course in computer science in English. In 1952, when the Faculty of Mathematics and Physics, Charles's and master's study programs in computer science with English as the language of instruction. Attention

  13. From the World Wide Web to digital library stacks: preserving the French web archives

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    From the World Wide Web to digital library stacks: preserving the French web archives Clément Oury nationale de France Bibliographic and Digital Information Department sebastien.peyrard@bnf.fr ABSTRACT The National Library of France is mandated by French law to collect and preserve the French Internet. It is now

  14. All NC State students have access to Unity, a campus-wide computing environment

    E-Print Network [OSTI]

    All NC State students have access to Unity, a campus-wide computing environment that serves faculty. They provide access to the Internet, word processors, spreadsheets, compil- ers and discipline services 4Web-based email client 4Personal web-page support 4Personal networked file space that can be used

  15. High Efficiency Interleaved Power Electronics Converter for wide operating power range

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    High Efficiency Interleaved Power Electronics Converter for wide operating power range K driving strategy for improving the efficiency of power converters even if they are not used is presented. Index Terms-Power converters, Interleaved, Power efficiency I. CONTEXTE, INTRODUCTION One

  16. DAX: A Widely Distributed Multi-tenant Storage Service for DBMS Hosting

    E-Print Network [OSTI]

    Aboulnaga, Ashraf

    DAX: A Widely Distributed Multi-tenant Storage Service for DBMS Hosting Rui Liu University data management needs that are best served by a SQL-based relational DBMS. It is not difficult to run a DBMS in the cloud, and in many cases one DBMS instance is enough to support an application's workload

  17. Genome-wide patterns of divergence and gene flow across a butterfly radiation

    E-Print Network [OSTI]

    Mallet, James

    Genome-wide patterns of divergence and gene flow across a butterfly radiation NICOLA J. NADEAU, Panama City, Naos Island, Causeway Amador, Panama, Facultad de Ciencias Naturales y Matema butterflies are a diverse recent radiation comprising multiple levels of divergence with ongoing gene flow

  18. Plant-wide Control for Better De-oiling of Produced Water in Offshore Oil & Gas

    E-Print Network [OSTI]

    Yang, Zhenyu

    Plant-wide Control for Better De-oiling of Produced Water in Offshore Oil & Gas Production Zhenyu Campus, Niels Bohrs Vej 8, 6700 Esbjerg, Denmark (e-mail: yang@et.aau.dk). Maersk Oil A/S, Kanalen 1, 6700 Esbjerg, Denmark (e-mail: Jens.Peter.Stigkaer@maerskoil.com) Ramboll Oil & Gas A/S, Willemoesgade

  19. Wide-field near-infrared all-reflecting camera with Fabry--Perot for astronomy

    E-Print Network [OSTI]

    Ashley, Michael C. B.

    Wide-field near-infrared all-reflecting camera with Fabry--Perot for astronomy Yin-sheng Sun to small temperature differences in the optical system. Keywords: Fabry-Perot etalon, reflecting, near-infrared, imaging, astronomy 1 INTRODUCTION Our goal is to build a camera that can acquire near-infrared images

  20. Mobile Access of Wide-Spectrum Networks: Design, Deployment and Experimental Evaluation

    E-Print Network [OSTI]

    Knightly, Edward W.

    --Wireless networks increasingly utilize diverse spec- tral bands that exhibit vast differences in both transmissionMobile Access of Wide-Spectrum Networks: Design, Deployment and Experimental Evaluation Anastasios Giannoulis Paul Patras Edward W. Knightly Dept. of Electrical and Computer Engineering, Rice University

  1. Wide input range DC-DC converter with digital control scheme

    E-Print Network [OSTI]

    Harfman Todorovic, Maja

    2006-04-12T23:59:59.000Z

    In this thesis analysis and design of a wide input range DC-DC converter is proposed along with a robust power control scheme. The proposed converter and its control is designed to be compatible to a fuel cell power source, which exhibits 2...

  2. EIS-0387: Y-12 National Security Complex Site-Wide Environmental Impact Statement, Oak Ridge, Tennessee

    Broader source: Energy.gov [DOE]

    This Final Y-12 Site-wide EIS analyzed the potential environmental impacts of the reasonable alternatives for ongoing and foreseeable future operations and activities at Y-12, including alternatives for changes to site infrastructure and levels of operation (using production capacity as the key metric for comparison).

  3. Plant-Wide Waste Management. 1. Synthesis and Multiobjective Aninda Chakraborty and Andreas A. Linninger*

    E-Print Network [OSTI]

    Linninger, Andreas A.

    cleanup and waste treatment efforts often compound actual process overhead unaccounted-specific selection criteria. It is customary to remove hazardous solid wastes via incineration, while wastewaterPlant-Wide Waste Management. 1. Synthesis and Multiobjective Design Aninda Chakraborty and Andreas

  4. INTERNATIONAL ACTIVITIES Preamble: Beans (Phaseolus vulgaris) originated in Latin America and are widely grown at

    E-Print Network [OSTI]

    INTERNATIONAL ACTIVITIES Preamble: Beans (Phaseolus vulgaris) originated in Latin America and are widely grown at mid- to higher elevations today from Chile to Canada. Brazil is the world's leading bean their importance as a food security crop in many Latin American countries, bean production has been relegated

  5. innovati nNREL Produces Highly Efficient, Wide-Bandgap, Thin-Film Solar Cells

    E-Print Network [OSTI]

    . Low-bandgap cells can lose 25% of their power output and efficiency ratings as solar cell operating energy output than a low-bandgap cell with the same wattage or power rating. NREL is a nationalinnovati nNREL Produces Highly Efficient, Wide-Bandgap, Thin-Film Solar Cells Researchers

  6. ClimateChangeCorp.com | Policy Illegal timber: Europe's doors still wide open

    E-Print Network [OSTI]

    ClimateChangeCorp.com | Policy Illegal timber: Europe's doors still wide open 7 Aug 2008 | Author: Rikki Stancich The EU is a massive importer of illegally logged wood. Is there the political will to move beyond a voluntary approach and adopt tough legal measures? The illegal timber trade is thriving

  7. Electric field and temperature measurement using ultra wide bandwidth pigtailed electro-optic probes

    E-Print Network [OSTI]

    Boyer, Edmond

    .1364/AO.47.002470 #12;2 Introduction In the field of high power microwave (HPM) measurements, ultra wideHz-GHz frequency range) and allowing getting simultaneously one specific component of the HPM E field and the probe determining the energy of a single shot HPM signal by measuring the temperature increase of an EO probe

  8. WebOS: Operating System Services for Wide Area Applications Amin Vahdaty

    E-Print Network [OSTI]

    Culler, David E.

    mechanisms for naming, persistent storage, remote process execution, resource management, authentication these abstractions. In the wide area, however, ap- plication developers are forced to build these abstractions-optimal solutions, wasting both programmer effort and system re- sources. To address these problems, we are building

  9. A Maximum Entropy Algorithm for Rhythmic Analysis of Genome-Wide Expression Patterns

    E-Print Network [OSTI]

    Richardson, David

    A Maximum Entropy Algorithm for Rhythmic Analysis of Genome-Wide Expression Patterns Christopher James Langmead C. Robertson McClung Bruce Randall Donald ,,,§,¶ Abstract We introduce a maximum entropy-based spectral analysis, maximum entropy spectral reconstruction is well suited to signals of the type generated

  10. System-Wide Energy Minimization for Real-Time Tasks: Lower Bound and Approximation

    E-Print Network [OSTI]

    Xu, Cheng-Zhong

    - time solutions by exploiting its inherent properties. 1. INTRODUCTION Power management is importantSystem-Wide Energy Minimization for Real-Time Tasks: Lower Bound and Approximation Xiliang Zhong and Cheng-Zhong Xu Department of Electrical and Computer Engineering Wayne State University, Detroit

  11. Evaluation of Emerging Technology for Geothermal Drilling and...

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

    Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications Georgia Bettin Doug Blankenship Presenter: Doug Blankenship Sandia National Laboratories...

  12. Wide angle Compton scattering on the proton: study of power suppressed corrections

    E-Print Network [OSTI]

    Kivel, N

    2015-01-01T23:59:59.000Z

    We study the wide angle Compton scattering process on a proton within the soft collinear factorization (SCET) framework. The main purpose of this work is to estimate the effect due to certain power suppressed corrections. We consider all possible kinematical power corrections and also include the subleading amplitudes describing the scattering with nucleon helicity flip. Under certain assumptions we present a leading-order factorization formula for these amplitudes which includes the hard- and soft-spectator contributions. We apply the formalism and perform a phenomenological analysis of the cross section and asymmetries in the wide angle Compton scattering on a proton. We assume that in the relevant kinematical region where $-t,-u>2.5$~GeV$^{2}$ the dominant contribution is provided by the soft-spectator mechanism. The hard coefficient functions of the corresponding SCET operators are taken in the leading-order approximation. The analysis of existing cross section data shows that the contribution of the heli...

  13. Use of the WECC WAMS in Wide Area Probing Tests for Validation of System Performance & Modeling

    SciTech Connect (OSTI)

    Hauer, John F.; Mittelstadt, William; Martin, Kenneth E.; Burns, J. W.; Lee, Harry; Pierre, John W.; Trudnowski, Daniel

    2009-02-01T23:59:59.000Z

    During 2005 and 2006 the Western Electricity Coordinating Council (WECC) performed three major tests of western system dynamics. These tests used a Wide Area Measurement System (WAMS) based primarily on Phasor Measurement Units (PMUs) to determine response to events including the insertion of the 1400-MW Chief Joseph braking resistor, probing signals, and ambient events. Test security was reinforced through real-time analysis of wide area effects, and high-quality data provided dynamic profiles for interarea modes across the entire western interconnection. The tests established that low-level optimized pseudo-random ±20-MW probing with the Pacific DC Intertie (PDCI) roughly doubles the apparent noise that is natural to the power system, providing sharp dynamic information with negligible interference to system operations. Such probing is an effective alternative to use of the 1400-MW Chief Joseph dynamic brake, and it is under consideration as a standard means for assessing dynamic security.

  14. Paramount Petroleum: Plant-Wide Energy-Efficiency Assessment Identifies Three Projects

    SciTech Connect (OSTI)

    Not Available

    2003-07-01T23:59:59.000Z

    The Paramount Petroleum plant-wide energy assessment identified a cost-effective electrical power and heat energy production facility and systems that could benefit from either fuel-burn adjustments or a new drive/control system. This could lead to independence from a local electric utility with much improved reliability, estimated annual energy savings of 1,200,000 kWh of electricity, and estimated annual savings of$4.1 million for energy reduction and other improvements.

  15. The Garching-Bonn Deep Survey (GaBoDS) Wide-Field-Imaging Reduction Pipeline

    E-Print Network [OSTI]

    H. Hildebrandt; T. Erben; M. Schirmer; J. P. Dietrich; P. Schneider

    2007-05-03T23:59:59.000Z

    We introduce our publicly available Wide-Field-Imaging reduction pipeline THELI. The procedures applied for the efficient pre-reduction and astrometric calibration are presented. A special emphasis is put on the methods applied to the photometric calibration. As a test case the reduction of optical data from the ESO Deep Public Survey including the WFI-GOODS data is described. The end-products of this project are now available via the ESO archive Advanced Data Products section.

  16. New players, opportunities and frustrations in the global marketplace -- Results of an industry-wide survey

    SciTech Connect (OSTI)

    Schwartz, R.

    1998-07-01T23:59:59.000Z

    Review of the annual industry-wide survey of the independent power industry, including top players, market shares, company growth rates, player activities by country and market expectations. The author offers fresh analysis on industry trends based on the survey, conducted through direct interviews with nearly 200 global power developers. Unlike other overviews offering demand projections of various power markets, this survey takes a look at the industry itself.

  17. NREL Produces Highly Efficient, Wide-Bandgap, Thin-Film Solar Cells (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    Researchers at the National Renewable Energy Laboratory (NREL) are finding new ways to manufacture thin-film solar cells made from copper, indium, gallium, and selenium - called CIGS cells - that are different than conventional CIGS solar cells. Their use of high-temperature glass, designed by SCHOTT AG, allows higher fabrication temperatures, opening the door to new CIGS solar cells employing light-absorbing materials with wide 'bandgaps.'

  18. Envelope density pattern around wide binary AGB stars: a dynamical model

    E-Print Network [OSTI]

    J. H. He

    2007-03-26T23:59:59.000Z

    The goal is to build up a simple dynamical model for the out-flowing circumstellar envelope around AGB stars in a wide binary system to explore the parameter dependence of the geometrical characteristics of column density patterns. An AGB star in a wide binary system is considered as a 3-D piston model that can induce a 3-D quasi-spherical density structure in the circumstellar envelope by orbital motion of the AGB star. The column density pattern only depends on two parameters: eccentricity of the orbit e and the terminal outflow velocity to mean orbital velocity ratio gamma. When viewed perpendicular to the orbital plane, spiral, broken spiral, and incomplete concentric shell patterns can be seen, while when viewed along the orbital plane, alternative concentric half-shell, egg-shell, and half-shell half-gap patterns will develop. Non-zero eccentricity causes asymmetry, while larger gamma makes a weaker pattern and helps bring out asymmetry. A spiral pattern may becomes broken when e > 0.4. The spiral center is always less than 12% of spiral pitch away from the orbit center. One should have more chances (~ 80%) seeing spiral-like patterns than seeing concentric shells (~ 20%) in the circumstellar envelope of wide binary AGB stars.

  19. The Wide-area Energy Management System Phase 2 Final Report

    SciTech Connect (OSTI)

    Lu, Ning; Makarov, Yuri V.; Weimar, Mark R.

    2010-08-31T23:59:59.000Z

    The higher penetration of intermittent generation resources (including wind and solar generation) in the Bonneville Power Administration (BPA) and California Independent System Operator (CAISO) balancing authorities (BAs) raises issue of requiring expensive additional fast grid balancing services in response to additional intermittency and fast up and down power ramps in the electric supply system. The overall goal of the wide-area energy management system (WAEMS) project is to develop the principles, algorithms, market integration rules, a functional design, and a technical specification for an energy storage system to help cope with unexpected rapid changes in renewable generation power output. The resulting system will store excess energy, control dispatchable load and distributed generation, and utilize inter-area exchange of the excess energy between the California ISO and Bonneville Power Administration control areas. A further goal is to provide a cost-benefit analysis and develop a business model for an investment-based practical deployment of such a system. There are two tasks in Phase 2 of the WAEMS project: the flywheel field tests and the battery evaluation. Two final reports, the Wide-area Energy Management System Phase 2 Flywheel Field Tests Final Report and the Wide-area Energy Storage and Management System Battery Storage Evaluation, were written to summarize the results of the two tasks.

  20. Imaging design of the wide field x-ray monitor onboard the HETE satellite

    SciTech Connect (OSTI)

    Zand, J.J.M. In`T; Fenimore, E.E. [Los Alamos National Lab., NM (United States); Kawai, N.; Yoshida, A.; Matsuoka, M. [Institute of Physical and Chemical Research (RIKEN), Saitama (Japan); Yamauchi, M. [Miyazaki Univ. (Japan)

    1994-11-01T23:59:59.000Z

    The High Energy Transient Experiment (HETE), to be launched in 1995, will study Gamma-Ray Bursts in an unprecendented wide wavelength range from Gamma- and X-ray to UV wavelengths. The X-ray range (2 to 25 keV) will be covered by 2 perpendicularly oriented 1-dimensional coded aperture cameras. These instruments cover a wide field of view of 2 sr and thus have a relatively large potential to locate GRBs to a fraction of a degree, which is an order of magnitude better than BATSE. The imaging design of these coded aperture cameras relates to the design of the coded apertures and the decoding algorithm. The aperture pattern is to a large extent determined by the high background in this wide field application and the low number of pattern elements ({approximately}100) in each direction. The result is a random pattern with an open fraction of 33%. The onboard decoding algorithm is dedicated to the localization of a single point source.

  1. Proceedings of ICRC 2001: 860 c Copernicus Gesellschaft 2001 Event reconstruction for the orbiting wide-angle light collectors

    E-Print Network [OSTI]

    for the orbiting wide-angle light collectors (OWL) air-fluorescence detector T. Z. Abu-Zayyad1 and the OWL

  2. Graded index and randomly oriented core-shell silicon nanowires with broadband and wide angle antireflection for photovoltaic cell applications

    E-Print Network [OSTI]

    Pignalosa, P; Qiao, L; Tseng, M; Yi, Yasha

    2011-01-01T23:59:59.000Z

    Antireflection with broadband and wide angle properties is important for a wide range of applications on photovoltaic cells and display. The SiOx shell layer provides a natural antireflection from air to the Si core absorption layer. In this work, we have demonstrated the random core-shell silicon nanowires with both broadband (from 400nm to 900nm) and wide angle (from normal incidence to 60\\degree) antireflection characteristics within AM1.5 solar spectrum. The graded index structure from the randomly oriented core-shell (Air/SiOx/Si) nanowires may provide a potential avenue to realize a broadband and wide angle antireflection layer.

  3. Scale Matters: An Action Plan for Realizing Sector-Wide "Zero-Energy" Performance Goals in Commercial Buildings

    E-Print Network [OSTI]

    Selkowitz, Stephen

    2008-01-01T23:59:59.000Z

    potential for achieving zero-energy commercial buildings. ”for Realizing Sector-Wide “Zero Energy” Performance Goals ine.g. targeting “zero energy”, carbon-neutral buildings by

  4. SIMULTANEOUS EXOPLANET CHARACTERIZATION AND DEEP WIDE-FIELD IMAGING WITH A DIFFRACTIVE PUPIL TELESCOPE

    SciTech Connect (OSTI)

    Guyon, Olivier; Eisner, Josh A.; Angel, Roger; Woolf, Neville J. [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States)] [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Bendek, Eduardo A.; Milster, Thomas D. [College of Optical Sciences, University of Arizona, Tucson, AZ 85721 (United States)] [College of Optical Sciences, University of Arizona, Tucson, AZ 85721 (United States); Ammons, S. Mark [Lawrence Livermore National Laboratory, Physics Division L-210, 7000 East Avenue, Livermore, CA 94550 (United States)] [Lawrence Livermore National Laboratory, Physics Division L-210, 7000 East Avenue, Livermore, CA 94550 (United States); Shao, Michael; Shaklan, Stuart; Levine, Marie; Nemati, Bijan [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)] [Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Martinache, Frantz [National Astronomical Observatory of Japan, Subaru Telescope, Hilo, HI 96720 (United States)] [National Astronomical Observatory of Japan, Subaru Telescope, Hilo, HI 96720 (United States); Pitman, Joe [Exploration Sciences, P.O. Box 24, Pine, CO 80470 (United States)] [Exploration Sciences, P.O. Box 24, Pine, CO 80470 (United States); Woodruff, Robert A. [Lockheed Martin, 2081 Evergreen Avenue, Boulder, CO 80304 (United States)] [Lockheed Martin, 2081 Evergreen Avenue, Boulder, CO 80304 (United States); Belikov, Ruslan, E-mail: guyon@naoj.org [NASA Ames Research Center, Moffett Field, CA 94035 (United States)] [NASA Ames Research Center, Moffett Field, CA 94035 (United States)

    2013-04-10T23:59:59.000Z

    High-precision astrometry can identify exoplanets and measure their orbits and masses while coronagraphic imaging enables detailed characterization of their physical properties and atmospheric compositions through spectroscopy. In a previous paper, we showed that a diffractive pupil telescope (DPT) in space can enable sub-{mu}as accuracy astrometric measurements from wide-field images by creating faint but sharp diffraction spikes around the bright target star. The DPT allows simultaneous astrometric measurement and coronagraphic imaging, and we discuss and quantify in this paper the scientific benefits of this combination for exoplanet science investigations: identification of exoplanets with increased sensitivity and robustness, and ability to measure planetary masses to high accuracy. We show how using both measurements to identify planets and measure their masses offers greater sensitivity and provides more reliable measurements than possible with separate missions, and therefore results in a large gain in mission efficiency. The combined measurements reliably identify potentially habitable planets in multiple systems with a few observations, while astrometry or imaging alone would require many measurements over a long time baseline. In addition, the combined measurement allows direct determination of stellar masses to percent-level accuracy, using planets as test particles. We also show that the DPT maintains the full sensitivity of the telescope for deep wide-field imaging, and is therefore compatible with simultaneous scientific observations unrelated to exoplanets. We conclude that astrometry, coronagraphy, and deep wide-field imaging can be performed simultaneously on a single telescope without significant negative impact on the performance of any of the three techniques.

  5. Method and apparatus for use of III-nitride wide bandgap semiconductors in optical communications

    DOE Patents [OSTI]

    Hui, Rongqing (Lenexa, KS); Jiang,Hong-Xing (Manhattan, KS); Lin, Jing-Yu (Manhattan, KS)

    2008-03-18T23:59:59.000Z

    The present disclosure relates to the use of III-nitride wide bandgap semiconductor materials for optical communications. In one embodiment, an optical device includes an optical waveguide device fabricated using a III-nitride semiconductor material. The III-nitride semiconductor material provides for an electrically controllable refractive index. The optical waveguide device provides for high speed optical communications in an infrared wavelength region. In one embodiment, an optical amplifier is provided using optical coatings at the facet ends of a waveguide formed of erbium-doped III-nitride semiconductor materials.

  6. Double Wall Carbon Nanotubes for Wide-Band, Ultrafast Pulse Generation

    E-Print Network [OSTI]

    Hasan, Tawfique; Sun, Zhipei; Tan, PingHeng; Popa, Daniel; Flahaut, Emmanuel; Kelleher, Edmund J. R.; Bonaccorso, Francesco; Wang, Fengqiu; Jiang, Zhe; Torrisi, Felice; Privitera, Giulia; Nicolosi, Valeria; Ferrari, Andrea C.

    2014-04-15T23:59:59.000Z

    Accepted Manuscript: ACS Nano, 2014, 8 (5), pp 4836–4847DOI: 10.1021/nn500767b 1 Double Wall Carbon Nanotubes for Wide-Band, Ultrafast Pulse Generation Tawfique Hasan1,*, Zhipei Sun2, PingHeng Tan3, Daniel Popa1, Emmanuel Flahaut4,5, Edmund J. R... , Polymer Composites, Saturable Absorber, Ultrafast Laser. Accepted Manuscript: ACS Nano, 2014, 8 (5), pp 4836–4847DOI: 10.1021/nn500767b 2 ABSTRACT: We demonstrate wideband ultrafast optical pulse generation at 1, 1.5 and 2?m using a single polymer...

  7. Final Report: Laser-Material Interactions Relevant to Analytic Spectroscopy of Wide Band Gap Materials

    SciTech Connect (OSTI)

    Dickinson, J. T. [Washington State University] [Washington State University

    2014-04-05T23:59:59.000Z

    We summarize our studies aimed at developing an understanding of the underlying physics and chemistry in terms of laser materials interactions relevant to laser-based sampling and chemical analysis of wide bandgap materials. This work focused on the determination of mechanisms for the emission of electrons, ions, atoms, and molecules from laser irradiation of surfaces. We determined the important role of defects on these emissions, the thermal, chemical, and physical interactions responsible for matrix effects and mass-dependent transport/detection. This work supported development of new techniques and technology for the determination of trace elements contained such as nuclear waste materials.

  8. A cognitive-consistency based model of population wide attitude change.

    SciTech Connect (OSTI)

    Lakkaraju, Kiran; Speed, Ann Elizabeth

    2010-06-01T23:59:59.000Z

    Attitudes play a significant role in determining how individuals process information and behave. In this paper we have developed a new computational model of population wide attitude change that captures the social level: how individuals interact and communicate information, and the cognitive level: how attitudes and concept interact with each other. The model captures the cognitive aspect by representing each individuals as a parallel constraint satisfaction network. The dynamics of this model are explored through a simple attitude change experiment where we vary the social network and distribution of attitudes in a population.

  9. EA-1968: Final Site-Wide Environmental Assessment | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015 Business42.1Energy |Final Site-WideBPA issued aSunflower Wind Project,

  10. Searching for Images and Videos on the World-Wide Web John R. Smith and Shih-Fu Chang

    E-Print Network [OSTI]

    Chang, Shih-Fu

    Searching for Images and Videos on the World-Wide Web John R. Smith and Shih-Fu Chang Department of Electrical Engineering and Center for Image Technology for New Media, Columbia University, New York, N-Wide Web. #12;John R. Smith and Shih-Fu Chang 1 1 Introduction A large number of catalogs and search

  11. Genome-wide Co-occurrence of Promoter Elements Reveals a cis-Regulatory Cassette of rRNA

    E-Print Network [OSTI]

    Church, George M.

    Genome-wide Co-occurrence of Promoter Elements Reveals a cis-Regulatory Cassette of r conducted a genome-wide computational survey to identify cis-regulatory motif pairs that co-occur in a significantly high number of promoters in the S. cerevisiae genome. A pair of novel motifs, mRRPE and PAC, co

  12. Absolute x-ray energy calibration over a wide energy range using a diffraction-based iterative method

    E-Print Network [OSTI]

    Duffy, Thomas S.

    Mineral Physics Institute, Stony Brook University, Stony Brook, New York 11794, USA 2 DepartmentAbsolute x-ray energy calibration over a wide energy range using a diffraction-based iterative;REVIEW OF SCIENTIFIC INSTRUMENTS 83, 063901 (2012) Absolute x-ray energy calibration over a wide energy

  13. Hubble Space Telescope Spectroscopy of Brown Dwarfs Discovered with the Wide-field Infrared Survey Explorer

    E-Print Network [OSTI]

    Schneider, Adam C; Kirkpatrick, J Davy; Gelino, Christopher R; Mace, Gregory N; Wright, Edward L; Eisenhardt, Peter R; Skrutskie, M F; Griffith, Roger L; Marsh, Kenneth A

    2015-01-01T23:59:59.000Z

    We present a sample of brown dwarfs identified with the {\\it Wide-field Infrared Survey Explorer} (WISE) for which we have obtained {\\it Hubble Space Telescope} ({\\it HST}) Wide Field Camera 3 (WFC3) near-infrared grism spectroscopy. The sample (twenty-two in total) was observed with the G141 grism covering 1.10$-$1.70 $\\mu$m, while fifteen were also observed with the G102 grism, which covers 0.90$-$1.10 $\\mu$m. The additional wavelength coverage provided by the G102 grism allows us to 1) search for spectroscopic features predicted to emerge at low effective temperatures (e.g.\\ ammonia bands) and 2) construct a smooth spectral sequence across the T/Y boundary. We find no evidence of absorption due to ammonia in the G102 spectra. Six of these brown dwarfs are new discoveries, three of which are found to have spectral types of T8 or T9. The remaining three, WISE J082507.35$+$280548.5 (Y0.5), WISE J120604.38$+$840110.6 (Y0), and WISE J235402.77$+$024015.0 (Y1) are the nineteenth, twentieth, and twenty-first spec...

  14. Kinetics of silicide formation over a wide range of heating rates spanning six orders of magnitude

    SciTech Connect (OSTI)

    Molina-Ruiz, Manel; Lopeandía, Aitor F.; Gonzalez-Silveira, Marta; Garcia, Gemma; Clavaguera-Mora, Maria T. [Grup de Nanomaterials i Microsistemes, Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra (Spain); Peral, Inma [ALBA Synchrotron Light Facility, 08290 Cerdanyola del Vallès (Spain); Rodríguez-Viejo, Javier, E-mail: javier.rodriguez@uab.cat [Grup de Nanomaterials i Microsistemes, Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra (Spain); MATGAS Research Centre, UAB Campus, 08193 Bellaterra (Spain)

    2014-07-07T23:59:59.000Z

    Kinetic processes involving intermediate phase formation are often assumed to follow an Arrhenius temperature dependence. This behavior is usually inferred from limited data over narrow temperature intervals, where the exponential dependence is generally fully satisfied. However, direct evidence over wide temperature intervals is experimentally challenging and data are scarce. Here, we report a study of silicide formation between a 12?nm film of palladium and 15?nm of amorphous silicon in a wide range of heating rates, spanning six orders of magnitude, from 0.1 to 10{sup 5?}K/s, or equivalently more than 300?K of variation in reaction temperature. The calorimetric traces exhibit several distinct exothermic events related to interdiffusion, nucleation of Pd{sub 2}Si, crystallization of amorphous silicon, and vertical growth of Pd{sub 2}Si. Interestingly, the thickness of the initial nucleation layer depends on the heating rate revealing enhanced mass diffusion at the fastest heating rates during the initial stages of the reaction. In spite of this, the formation of the silicide strictly follows an Arrhenius temperature dependence over the whole temperature interval explored. A kinetic model is used to fit the calorimetric data over the complete heating rate range. Calorimetry is complemented by structural analysis through transmission electron microscopy and both standard and in-situ synchrotron X-ray diffraction.

  15. Wide angle Compton scattering on the proton: study of power suppressed corrections

    E-Print Network [OSTI]

    N. Kivel; M. Vanderhaeghen

    2015-04-04T23:59:59.000Z

    We study the wide angle Compton scattering process on a proton within the soft collinear factorization (SCET) framework. The main purpose of this work is to estimate the effect due to certain power suppressed corrections. We consider all possible kinematical power corrections and also include the subleading amplitudes describing the scattering with nucleon helicity flip. Under certain assumptions we present a leading-order factorization formula for these amplitudes which includes the hard- and soft-spectator contributions. We apply the formalism and perform a phenomenological analysis of the cross section and asymmetries in the wide angle Compton scattering on a proton. We assume that in the relevant kinematical region where $-t,-u>2.5$~GeV$^{2}$ the dominant contribution is provided by the soft-spectator mechanism. The hard coefficient functions of the corresponding SCET operators are taken in the leading-order approximation. The analysis of existing cross section data shows that the contribution of the helicity flip amplitudes to this observable is quite small and comparable with other expected theoretical uncertainties. We also show predictions for double polarization observables for which experimental information exists.

  16. Installation-wide energy-conservation demonstration at Fort McClellan, Alabama. Final report

    SciTech Connect (OSTI)

    Windingland, L.M.; Lilly, B.P.; Shonder, J.A.; Underwood, D.M.; Augustine, L.J.

    1988-11-01T23:59:59.000Z

    The objective of the installation-wide energy conservation demonstration at Fort McClellan, AL, was to evaluate the effectiveness of applying available energy-conservation technologies and techniques to produce significant and predictable reductions in energy use and cost. Five major areas of energy conservation were identified and investigated: (1) pressure reduction in district-steam-heating systems; (2) reduction of outdoor air in heating, ventilation, and air-conditioning (HVAC) systems; (3) replacement of oversized and inefficient motors in HVAC systems; (4) reduction of outdoor air infiltration in family housing; and (5) combustion optimization of gas-fired heating equipment. Other areas of investigation included radio-controlled exterior lighting, and temperature reduction in the high-temperature hot-water system. Each conservation project was evaluated on a small scale to verify energy savings before it was implemented. An energy-information management system was developed to maintain annual consumption data for each building. The system provides immediate feedback on energy use so managers can make correct decisions on conservation measures. The energy conservation programs implemented at Fort McClellan contributed to the 14% reduction in baseline (weather independent) energy consumption from FY84 to FY86. These programs have wide applicability to other U.S. Army installations. This research has also shown the importance of preliminary, small-scale testing of energy-conservation programs before implementation.

  17. On-road evaluation of advanced hybrid electric vehicles over a wide range of ambient temperatures.

    SciTech Connect (OSTI)

    Carlson, R.; Duoba, M. J.; Bocci, D.; Lohse-Busch, H. (Energy Systems)

    2007-01-01T23:59:59.000Z

    In recent years, Hybrid Electric Vehicles (HEV's) have become a production viable and effective mode of efficient transportation. HEV's can provide increased fuel economy over convention technology vehicle, but these advantages can be affected dramatically by wide variations in operating temperatures. The majority of data measured for benchmarking HEV technologies is generated from ambient test cell temperatures at 22 C. To investigate cold and hot temperature affects on HEV operation and efficiency, an on-road evaluation protocol is defined and conducted over a six month study at widely varying temperatures. Two test vehicles, the 2007 Toyota Camry HEV and 2005 Ford Escape HEV, were driven on a pre-defined urban driving route in ambient temperatures ranging from -14 C to 31 C. Results from the on-road evaluation were also compared and correlated to dynamometer testing of the same drive cycle. Results from this on-road evaluation show the battery power control limits and engine operation dramatically change with temperature. These changes decrease fuel economy by more than two times at -14 C as compared to 25 C. The two vehicles control battery temperature in different manners. The Escape HEV uses the air conditioning system to provide cool air to the batteries at high temperatures and is therefore able to maintain battery temperature to less than 33 C. The Camry HEV uses cabin air to cool the batteries. The observed maximum battery temperature was 44 C.

  18. TWO WIDE PLANETARY-MASS COMPANIONS TO SOLAR-TYPE STARS IN UPPER SCORPIUS

    SciTech Connect (OSTI)

    Ireland, M. J. [Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney, NSW 2006 (Australia); Kraus, A. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Martinache, F. [National Astronomical Observatory of Japan, Subaru Telescope, Hilo, HI 96720 (United States); Law, N. [Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto M5S 3H4, Ontario (Canada); Hillenbrand, L. A. [Department of Astrophysics, California Institute of Technology, MC 105-24, Pasadena, CA 91125 (United States)

    2011-01-10T23:59:59.000Z

    At wide separations, planetary-mass and brown dwarf companions to solar-type stars occupy a curious region of parameter space not obviously linked to binary star formation or solar system scale planet formation. These companions provide insight into the extreme case of companion formation (either binary or planetary), and due to their relative ease of observation when compared to close companions, they offer a useful template for our expectations of more typical planets. We present the results from an adaptive optics imaging survey for wide ({approx}50-500 AU) companions to solar-type stars in Upper Scorpius. We report one new discovery of a {approx}14 M{sub J} companion around GSC 06214-00210and confirm that the candidate planetary-mass companion 1RXS J160929.1-210524 detected by Lafreniere et al. is in fact comoving with its primary star. In our survey, these two detections correspond to {approx}4% of solar-type stars having companions in the 6-20 M{sub J} mass and {approx}200-500 AU separation range. This figure is higher than would be expected if brown dwarfs and planetary-mass companions were drawn from an extrapolation of the binary mass function. Finally, we discuss implications for the formation of these objects.

  19. Improved Energy Conversion Efficiency in Wide Bandgap Cu(In,Ga)Se2 Solar Cells

    SciTech Connect (OSTI)

    Contreras, M. A.; Mansfield, L. M.; Egaas, B.; Li, J.; Romero, M.; Noufi, R.; Rudiger-Voigt, E.; Mannstadt, W.

    2011-01-01T23:59:59.000Z

    This report outlines improvements to the energy conversion efficiency in wide bandgap (E{sub g} > ;1.2 eV) solar cells based on CuIn{sub 1-x}Ga{sub x}Se{sub 2}. Using (a) alkaline containing high temperature glass substrates, (b) elevated substrate temperatures 600 C-650 C and (c) high vacuum evaporation from elemental sources following NREL's three-stage process, we have been able to improve the performance of wider bandgap solar cells with 1.2 < E{sub g} < 1.45 eV. Initial results of this work have led to efficiencies >18% for absorber bandgaps {approx}1.30 eV and efficiencies {approx}16% for bandgaps up to {approx}1.45 eV. In comparing J-V parameters in similar materials, we establish gains in the open-circuit voltage and, to a lesser degree, the fill factor value, as the reason for the improved performance. The higher voltages seen in these wide gap materials grown at high substrate temperatures may be due to reduced recombination at the grain boundary of such absorber films. Solar cell results, absorber materials characterization, and experimental details are reported.

  20. The Hot and Energetic Universe: The Wide Field Imager (WFI) for Athena+

    E-Print Network [OSTI]

    Rau, A; Nandra, K; Porro, M; Barret, D; Santangelo, A; Schmid, C; Struder, L; Tenzer, C; Wilms, J; Amoros, C; Andritschke, R; Aschauer, F; Bahr, A; Gunther, B; Furmetz, M; Ott, B; Perinati, E; Rambaud, D; Reiffers, J; Treis, J; von Kienlin, A; Weidenspointner, G

    2013-01-01T23:59:59.000Z

    The Wide Field Imager (WFI) is one of the two scientific instruments proposed for the Athena+ X-ray observatory. It will provide imaging in the 0.1-15 keV band over a wide field, simultaneously with spectrally and time-resolved photon counting. The instrument is designed to make optimal use of the grasp (collecting area times solid angle product) provided by the optical design of the Athena+ mirror system (Willingale et al. 2013), by combining a sensitive approx. 40' diameter field of view (baseline; 50' goal) DEPFET detector with a pixel size properly sampling the angular resolution of 5 arc sec on-axis (half energy width).This synthesis makes the WFI a very powerful survey instrument, significantly surpassing currently existing capabilities (Nandra et al. 2013; Aird et al. 2013). In addition, the WFI will provide unprecedented simultaneous high-time resolution and high count rate capabilities for the observation of bright sources with low pile-up and high efficiency. In this paper, we summarize the instrume...

  1. System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors

    DOE Patents [OSTI]

    Harris, John Richardson; Caporaso, George J; Sampayan, Stephen E

    2013-10-22T23:59:59.000Z

    A system and method for producing modulated electrical signals. The system uses a variable resistor having a photoconductive wide bandgap semiconductor material construction whose conduction response to changes in amplitude of incident radiation is substantially linear throughout a non-saturation region to enable operation in non-avalanche mode. The system also includes a modulated radiation source, such as a modulated laser, for producing amplitude-modulated radiation with which to direct upon the variable resistor and modulate its conduction response. A voltage source and an output port, are both operably connected to the variable resistor so that an electrical signal may be produced at the output port by way of the variable resistor, either generated by activation of the variable resistor or propagating through the variable resistor. In this manner, the electrical signal is modulated by the variable resistor so as to have a waveform substantially similar to the amplitude-modulated radiation.

  2. Autonomous Vehicles Have a Wide Range of Possible Energy Impacts (Poster)

    SciTech Connect (OSTI)

    Brown, A.; Repac, B.; Gonder, J.

    2013-07-01T23:59:59.000Z

    This poster presents initial estimates of the net energy impacts of automated vehicles (AVs). Automated vehicle technologies are increasingly recognized as having potential to decrease carbon dioxide emissions and petroleum consumption through mechanisms such as improved efficiency, better routing, lower traffic congestion, and by enabling advanced technologies. However, some effects of AVs could conceivably increase fuel consumption through possible effects such as longer distances traveled, increased use of transportation by underserved groups, and increased travel speeds. The net effect on petroleum use and climate change is still uncertain. To make an aggregate system estimate, we first collect best estimates for the energy impacts of approximately ten effects of AVs. We then use a modified Kaya Identity approach to estimate the range of aggregate effects and avoid double counting. We find that depending on numerous factors, there is a wide range of potential energy impacts. Adoption of automated personal or shared vehicles can lead to significant fuel savings but has potential for backfire.

  3. Time Stamp Attack on Wide Area Monitoring System in Smart Grid

    E-Print Network [OSTI]

    Zhang, Zhenghao; Li, Husheng; Pei, Changxing

    2011-01-01T23:59:59.000Z

    Security becomes an extremely important issue in smart grid. To maintain the steady operation for smart power grid, massive measurement devices must be allocated widely among the power grid. Previous studies are focused on false data injection attack to the smart grid system. In practice, false data injection attack is not easy to implement, since it is not easy to hack the power grid data communication system. In this paper, we demonstrate that a novel time stamp attack is a practical and dangerous attack scheme for smart grid. Since most of measurement devices are equipped with global positioning system (GPS) to provide the time information of measurements, it is highly probable to attack the measurement system by spoofing the GPS. By employing the real measurement data in North American Power Grid, simulation results demonstrate the effectiveness of the time stamp attack on smart grid.

  4. Direction Dependent Effects In Wide-Field Wideband Full Stokes Radio Imaging

    E-Print Network [OSTI]

    Jagannathan, Preshanth; Rau, Urvashi; Taylor, Russ

    2014-01-01T23:59:59.000Z

    Synthesis imaging in radio astronomy is affected by instrumental and atmospheric effects which introduce direction-dependent (DD) gains.The antenna power pattern varies both as a function of time and frequency. The broad band time varying nature of the antenna power pattern when not corrected leads to gross errors in full Stokes imaging and flux estimation. In this poster we explore the errors that arise in image deconvolution while not accounting for the time and frequency dependence of the antenna power pattern. Simulations were conducted with the wide-band full Stokes power pattern of the Karl G. Jansky Very Large Array (VLA) antennas to demonstrate the level of errors arising from direction-dependent gains and their non-neglegible impact on upcoming sky surveys such as the VLASS. DD corrections through hybrid projection algorithms are computationally expensive to perform. A highly parallel implementation through high performance computing architectures is the only feasible way of applying these correction...

  5. Permeability of CoNbZr amorphous thin films over a wide frequency range

    SciTech Connect (OSTI)

    Koyama, H.; Tsujimoto, H.; Shirae, K.

    1987-09-01T23:59:59.000Z

    CoNbZr amorphous films have attracted the attention of many researchers because of their high saturation magnetization, high permeability, low coercivity, and nearly zero magnetostriction. For these films to be used, one of the important magnetic properties is the behavior of the permeability over a wide frequency range. We have measured the permeability of a square-shaped magnetic film (13 mm x 55 mm) sputtered on a glass substrate from 1 MHz to 400 MHz using a stripline. Over 400 MHz, the permeability of the magnetic film was measured using a ring-shaped sample mounted in a coaxial fixture. The wall motion permeability of CoNbZr amorphous films decreases from 1 kHz to nearly zero at 1 MHz. The rotation permeability is constant to 100 MHz and ferromagnetic resonance is observed near 1 GHz.

  6. Wide Binary Effects on Asymmetries in Asymptotic Giant Branch Circumstellar Envelopes

    E-Print Network [OSTI]

    Kim, Hyosun

    2012-01-01T23:59:59.000Z

    Observations of increasingly higher spatial resolution reveal the existence of asymmetries in the circumstellar envelopes of a small fraction of asymptotic giant branch (AGB) stars. Although there is no general consensus for their origin, a binary companion star may be responsible. Within this framework, we investigate the gravitational effects associated with a sufficiently wide binary system, where Roche lobe overflow is unimportant, on the outflowing envelopes of AGB stars using three dimensional hydrodynamic simulations. The effects due to individual binary components are separately studied, enabling investigation of the stellar and circumstellar characteristics in detail. The reflex motion of the AGB star alters the wind velocity distribution, thereby, determining the overall shape of the outflowing envelope. On the other hand, the interaction of the companion with the envelope produces a gravitational wake, which exhibits a vertically thinner shape. The two patterns overlap and form clumpy structures. T...

  7. 230Th/U ages Supporting Hanford Site-Wide Probabilistic Seismic Hazard Analysis

    SciTech Connect (OSTI)

    Paces, James B. [U.S. Geological Survey] [U.S. Geological Survey

    2014-08-31T23:59:59.000Z

    This product represents a USGS Administrative Report that discusses samples and methods used to conduct uranium-series isotope analyses and resulting ages and initial 234U/238U activity ratios of pedogenic cements developed in several different surfaces in the Hanford area middle to late Pleistocene. Samples were collected and dated to provide calibration of soil development in surface deposits that are being used in the Hanford Site-Wide probabilistic seismic hazard analysis conducted by AMEC. The report includes description of sample locations and physical characteristics, sample preparation, chemical processing and mass spectrometry, analytical results, and calculated ages for individual sites. Ages of innermost rinds on a number of samples from five sites in eastern Washington are consistent with a range of minimum depositional ages from 17 ka for cataclysmic flood deposits to greater than 500 ka for alluvium at several sites.

  8. Evaporation monitoring and composition control of alloy systems with widely differing vapor pressures

    SciTech Connect (OSTI)

    Anklam, T.M.; Berzins, L.V.; Braun, D.G.; Haynam, C.; McClelland, M.A.; Meier, T.

    1994-10-01T23:59:59.000Z

    Lawrence Livermore National Laboratory is developing sensors and controls to improve and extend electron beam materials processing technology to alloy systems with constituents of widely varying vapor pressure. The approach under development involves using tunable lasers to measure the density and composition of the vapor plume. A laser based vaporizer control system for vaporization of a uranium-iron alloy has been previously demonstrated in multi-hundred hour, high rate vaporization experiments at LLNL. This paper reviews the design and performance of the uranium vaporization sensor and control system and discusses the extension of the technology to monitoring of uranium vaporization. Data is presented from an experiment in which titanium wire was fed into a molten niobium pool. Laser data is compared to deposited film composition and film cross sections. Finally, the potential for using this technique for composition control in melting applications is discussed.

  9. Evaporation monitoring and composition control of alloy systems with widely differing vapor pressures

    SciTech Connect (OSTI)

    Anklam, T.M.; Berzins, L.V.; Braun, D.G.; Haynam, C.; McClelland, M.A.; Meier, T. [Lawrence Livermore National Lab., CA (United States)

    1994-12-31T23:59:59.000Z

    Lawrence Livermore National Laboratory is developing sensors and controls to improve and extend electron beam materials processing technology to alloy systems with constituents of widely varying vapor pressure. The approach under development involves using tunable lasers to measure the density and composition of the vapor plume. A laser based vaporizer control system for vaporization of a uranium-iron alloy has been previously demonstrated in multi-hundred hour, high rate vaporization experiments at LLNL. This paper reviews the design and performance of the uranium vaporization sensor and control system and discusses the extension of the technology to monitoring of titanium vaporization. Data is presented from an experiment in which titanium wire was fed into a molten niobium pool. Laser data is compared to deposited film composition and film cross sections. Finally, the potential for using this technique for composition control in melting applications is discussed.

  10. Automatic scanning of nuclear emulsions with wide-angle acceptance for nuclear fragment detection

    E-Print Network [OSTI]

    Fukuda, T; Ishida, H; Kodama, K; Matsuo, T; Mikado, S; Ogawa, S; Shibuya, H; Sudo, J

    2013-01-01T23:59:59.000Z

    Nuclear emulsion, a tracking detector with sub-micron position resolution, has played a successful role in the field of particle physics and the analysis speed has been substantially improved by the development of automated scanning systems. This paper describes a newly developed automated scanning system and its application to the analysis of nuclear fragments emitted almost isotropically in nuclear evaporation. This system is able to recognize tracks of nuclear fragments up to |tan{\\theta}|nuclear emulsion is the first trial. Furthermore the track recognition algorithm is performed by a powerful Graphics Processing Unit (GPU) for the first time. This GPU has a sufficient computing power to process large area scanning data with a wide angular acceptance and enough flexibil...

  11. A Robotic Wide-Angle H-Alpha Survey of the Southern Sky

    E-Print Network [OSTI]

    J. E. Gaustad; P. R. McCullough; W. Rosing; D. Van Buren

    2001-08-31T23:59:59.000Z

    We have completed a robotic wide-angle imaging survey of the southern sky (declination less than +15 degrees) at 656.3 nm wavelength, the H-alpha emission line of hydrogen. Each image of the resulting Southern H-Alpha Sky Survey Atlas (SHASSA) covers an area of the sky 13 degrees square at an angular resolution of approximately 0.8 arcminute, and reaches a sensitivity level of 2 rayleigh (1.2 x 10^-17 erg cm^-2 s^-1 arcsec^-2) per pixel, corresponding to an emission measure of 4 cm^-6 pc, and to a brightness temperature for microwave free-free emission of 12 microkelvins at 30 GHz. Smoothing over several pixels allows features as faint as 0.5 rayleigh to be detected.

  12. Simultaneous Exoplanet Characterization and deep wide-field imaging with a diffractive pupil telescope

    E-Print Network [OSTI]

    Guyon, Olivier; Angel, Roger; Woolf, Neville J; Bendek, Eduardo A; Milster, Thomas D; Ammons, Stephen M; Shao, Michael; Shaklan, Stuart; Levine, Marie; Nemati, Bijan; Martinache, Frantz; Pitman, Joe; Woodruff, Robert A; Belikov, Ruslan; 10.1088/0004-637X/767/1/11

    2013-01-01T23:59:59.000Z

    High-precision astrometry can identify exoplanets and measure their orbits and masses, while coronagraphic imaging enables detailed characterization of their physical properties and atmospheric compositions through spectroscopy. In a previous paper, we showed that a diffractive pupil telescope (DPT) in space can enable sub-microarcsecond accuracy astrometric measurements from wide-field images by creating faint but sharp diffraction spikes around the bright target star. The DPT allows simultaneous astrometric measurement and coronagraphic imaging, and we discuss and quantify in this paper the scientific benefits of this combination for exoplanet science investigations: identification of exoplanets with increased sensitivity and robustness, and ability to measure planetary masses to high accuracy. We show how using both measurements to identify planets and measure their masses offers greater sensitivity and provides more reliable measurements than possible with separate missions, and therefore results in a lar...

  13. Development of transparent silica aerogel over a wide range of densities

    E-Print Network [OSTI]

    Makoto Tabata; Ichiro Adachi; Yoshikazu Ishii; Hideyuki Kawai; Takayuki Sumiyoshi; Hiroshi Yokogawa

    2011-12-21T23:59:59.000Z

    We have succeeded in developing hydrophobic silica aerogels over a wide range of densities (i.e. refractive indices). A pinhole drying method was invented to make possible producing highly transparent aerogels with entirely new region of refractive indices of 1.06-1.26. Obtained aerogels are more transparent than conventional ones, and the refractive index is well controlled in the pinhole drying process. A test beam experiment was carried out in order to evaluate the performance of the pinhole-dried aerogels as a Cherenkov radiator. A clear Cherenkov ring was successfully observed by a ring imaging Cherenkov counter. We also developed monolithic and hydrophobic aerogels with a density of 0.01 g/cm^3 (a low refractive index of 1.0026) as a cosmic dust capturer for the first time. Consequently, aerogels with any refractive indices between 1.0026 and 1.26 can be produced freely.

  14. Development of transparent silica aerogel over a wide range of densities

    E-Print Network [OSTI]

    Tabata, Makoto; Ishii, Yoshikazu; Kawai, Hideyuki; Sumiyoshi, Takayuki; Yokogawa, Hiroshi; 10.1016/j.nima.2010.02.241

    2011-01-01T23:59:59.000Z

    We have succeeded in developing hydrophobic silica aerogels over a wide range of densities (i.e. refractive indices). A pinhole drying method was invented to make possible producing highly transparent aerogels with entirely new region of refractive indices of 1.06-1.26. Obtained aerogels are more transparent than conventional ones, and the refractive index is well controlled in the pinhole drying process. A test beam experiment was carried out in order to evaluate the performance of the pinhole-dried aerogels as a Cherenkov radiator. A clear Cherenkov ring was successfully observed by a ring imaging Cherenkov counter. We also developed monolithic and hydrophobic aerogels with a density of 0.01 g/cm^3 (a low refractive index of 1.0026) as a cosmic dust capturer for the first time. Consequently, aerogels with any refractive indices between 1.0026 and 1.26 can be produced freely.

  15. SWIRE: The SIRTF Wide-area InfraRed Extragalactic Survey

    E-Print Network [OSTI]

    Carol J. Lonsdale; Harding E. Smith; Michael Rowan-Robinson; Jason Surace; David Shupe; Cong Xu; Seb Oliver; Deborah Padgett; Fan Fang; Alberto Franceschini; Nick Gautier; Matt Griffin; Frank Masci; Glenn Morrison; JoAnn O'Linger; Ismael Perez-Fournon; Marguerite Pierre; Richard Puetter; Gordon Stacey

    2003-05-20T23:59:59.000Z

    The SIRTF Wide-area InfraRed Extragalactic survey (SWIRE), the largest SIRTF Legacy program, is a wide-area, imaging survey to trace the evolution of dusty, star-forming galaxies, evolved stellar populations, and AGN as a function of environment, from redshifts z~3 to the current epoch. SWIRE will survey 7 high-latitude fields, totaling 60 - 65 sq. deg. in all 7 SIRTF bands: IRAC 3.6, 4.5, 5.6, 8 microns and MIPS 24, 70, 160 microns. The Legacy Extragalactic Catalog may contain in excess of 2 million IR-selected galaxies, dominated by (1) ~150,000 luminous infrared galaxies (LIRGs: L{FIR}>10^11 L_sun), ~7000 of these with z>2; (2) 1 million early-type galaxies, ~10,000 with z>2; and (3) \\~20,000 classical AGN, plus significantly more dust-obscured QSO/AGN among the LIRGs. SWIRE will provide an unprecedented view of the evolution of galaxies, structure, and AGN. The key scientific goals of SWIRE are: (1) to determine the evolution of actively star-forming and passively evolving galaxies in order to understand the history of galaxy formation in the context of cosmic structure formation; (2) to determine the evolution of the spatial distribution and clustering of evolved galaxies, starbursts and AGN in the key redshift range, 0.5

  16. WIDE COMPANIONS TO HIPPARCOS STARS WITHIN 67 pc OF THE SUN

    SciTech Connect (OSTI)

    Tokovinin, Andrei [Cerro Tololo Inter-American Observatory, Casilla 603, La Serena (Chile); Lepine, Sebastien, E-mail: atokovinin@ctio.noao.edu, E-mail: lepine@amnh.org [Department of Astrophysics, Division of Physical Sciences, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 (United States)

    2012-10-01T23:59:59.000Z

    A catalog of common-proper-motion (CPM) companions to stars within 67 pc of the Sun is constructed based on the SUPERBLINK proper-motion survey. It contains 1392 CPM pairs with angular separations 30'' < {rho} < 1800'', relative proper motion between the two components less than 25 mas yr{sup -1}, and magnitudes and colors of the secondaries consistent with those of dwarfs in the (M{sub V} , V - J) diagram. In addition, we list 21 candidate white dwarf CPM companions with separations under 300'', about half of which should be physical. We estimate a 0.31 fraction of pairs with red dwarf companions to be physical systems (about 425 objects), while the rest (mostly wide pairs) are chance alignments. For each candidate companion, the probability of a physical association is evaluated. The distribution of projected separations s of the physical pairs between 2 kAU and 64 kAU follows f(s){proportional_to}s {sup -1.5}, which decreases faster than Oepik's law. We find that solar-mass dwarfs have no less than 4.4% {+-} 0.3% companions with separations larger than 2 kAU, or 3.8% {+-} 0.3% per decade of orbital separation in the 2-16 kAU range. The distribution of mass ratio of those wide companions is approximately uniform in the 0.1 < q < 1.0 range, although we observe a dip at q {approx_equal} 0.5 which, if confirmed, could be evidence of bimodal distribution of companion masses. New physical CPM companions to two exoplanet host stars are discovered.

  17. Wide-bandgap semiconductors for high power, high frequency and high temperature. Materials Research Society symposium proceedings Volume 512

    SciTech Connect (OSTI)

    DenBaars, S.; Palmour, J.; Shur, M.; Spencer, M. [eds.

    1997-07-01T23:59:59.000Z

    Wide-bandgap semiconductors have a long and illustrious history, starting with the first paper on SiC light-emitting diodes published in 1907. In the last few years, however, interest in wide-bandgap semiconductors has skyrocketed. Improved material quality, important breakthroughs both in SiC and GaN technologies, and the emergence of blue GaN-based lasers, have stimulated this progress. To provide a fairly complete and up-to-date picture of this important field, most of the work presented at the conference is included in the volume. In addition, invited papers present an excellent overview of the current state of the art and offer projections for future developments. Topics include: GaN materials and devices; crystal growth; SiC materials and devices; characterization of wide-bandgap semiconductors; and processing characterization and properties of wide-bandgap materials.

  18. Nutrient Management Educational & Planning Resources The Pennsylvania Nutrient Management Education Program provides a wide array of resources

    E-Print Network [OSTI]

    Guiltinan, Mark

    v.08.2011 Nutrient Management Educational & Planning Resources The Pennsylvania Nutrient Management Education Program provides a wide array of resources to nutrient management specialists. These resources serve two purposes: · Education. These factsheets and publications are selected to supplement

  19. An Image and Video Search Engine for the World-Wide Web John R. Smith and Shih-Fu Chang

    E-Print Network [OSTI]

    Chang, Shih-Fu

    An Image and Video Search Engine for the World-Wide Web John R. Smith and Shih-Fu Chang Department of Electrical Engineering and Center for Image Technology for New Media Columbia University, New York, N

  20. EIS-0380: Site-Wide Environmental Impact Statement for Continued Operation of the Los Alamos National Laboratory, New Mexico

    Broader source: Energy.gov [DOE]

    This Site-Wide EIS evaluates the continued operation of the Los Alamos National Laboratory (LANL). NNSA identified and assessed three alternatives for continued operation of LANL: (1) No Action, (2) Reduced Operations, and (3) Expanded Operations.

  1. Genome-wide SNP discovery in walnut with an AGSNP pipeline updated for SNP discovery in allogamous organisms

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    in walnut with an AGSNP pipeline updated for SNP discoveryin walnut with an AGSNP pipeline updated for SNP discoverythe development of a pipeline (AGSNP) for genome-wide SNP

  2. A microfluidic platform for the genome-wide analysis of electrical phenotype : physical theories and biological applications

    E-Print Network [OSTI]

    Vahey, Michael D. (Michael David)

    2010-01-01T23:59:59.000Z

    This thesis presents the development of a new microfluidic method for separating and characterizing cells based upon differences in their electrical properties. The objective of this work is to obtain a genome-wide mapping ...

  3. WebWatcher: A Learning Apprentice for the World Wide Web Robert Armstrong, Dayne Freitag, Thorsten Joachims, and Tom Mitchell

    E-Print Network [OSTI]

    Joachims, Thorsten

    WebWatcher: A Learning Apprentice for the World Wide Web Robert Armstrong, Dayne Freitag, Thorsten. In interactive mode, WebWatcher acts as a learning apprentice [Mitchell et al., 1985; Mitchell et. al., 1994

  4. WebWatcher: A Learning Apprentice for the World Wide Web Robert Armstrong, Dayne Freitag, Thorsten Joachims, and Tom Mitchell

    E-Print Network [OSTI]

    Joachims, Thorsten

    WebWatcher: A Learning Apprentice for the World Wide Web Robert Armstrong, Dayne Freitag, Thorsten. In interactive mode, WebWatcher acts as a learning apprentice Mitchell et al., 1985; Mitchell et. al., 1994

  5. Novel Approaches to Wide Bandgap CuInSe2 Based Absorbers

    SciTech Connect (OSTI)

    William N. Shafarman

    2011-04-28T23:59:59.000Z

    This project targeted the development of high performance wide bandgap solar cells based on thin film alloys of CuInSe2 to relax constraints on module design and enable tandem solar cell structures. This addressed goals of the Solar Energy Technologies Program for Next Generation PV to develop technology needed for higher thin film module efficiency as a means to reduce costs. Specific objectives of the research project were: 1) to develop the processes and materials required to improve the performance of wide bandgap thin film solar cells based on alloys of CuInSe2, and 2) to provide the fundamental science and engineering basis for the material, electronic, and device properties required to effectively apply these processes and materials to commercial manufacture. CuInSe2-based photovoltaics have established the highest efficiencies of the thin film materials at both the cell and module scales and are actively being scaled up to commercialization. In the highest efficiency cells and modules, the optical bandgap, a function of the CuInSe2-based alloy composition, is relatively low compared to the optimum match to the solar spectrum. Wider bandgap alloys of CuInSe2 produce higher cell voltages which can improve module performance and enable the development of tandem solar cells to boost the overall efficiency. A focus for the project was alloying with silver to form (AgCu)(InGa)Se2 pentenary thin films deposited by elemental co-evaporation which gives the broadest range of control of composition and material properties. This alloy has a lower melting temperature than Ag-free, Cu-based chalcopyrite compounds, which may enable films to be formed with lower defect densities and the (AgCu)(InGa)Se2 films give improved material properties and better device performance with increasing bandgap. A comprehensive characterization of optical, structural, and electronic properties of (AgCu)(InGa)Se2 was completed over the complete compositional range 0 ? Ga/(In+Ga) ? 1 and 0 ? Ag/(Ag+Cu) ? 1. Evidence of improved material quality includes reduced sub-bandgap optical absorption, sharper bandtails, and increased grain size with Ag addition. The Ag alloying was shown to increase the range of bandgaps over which solar cells can be fabricated without any drop-off in performance. With bandgap greater than 1.6 eV, in the range needed for tandem solar cells, (AgCu)(InGa)Se2 gave higher efficiency than other CuInSe2-based alloys. Using a simple single-stage co-evaporation process, a solar cell with 17.6% efficiency using a film with bandgap = 1.3 eV was achieved, demonstrating the viability of (AgCu)(InGa)Se2 for high efficiency devices. With a three-stage co-evaporation process for (AgCu)(InGa)Se2 deposition a device with efficiency = 13.0 % and VOC = 890 mV with JSC = 20.5 mA/cm2, FF = 71.3% was achieved. This surpasses the performance of other wide bandgap CuInSe2-based solar cells. Detailed characterization of the electronic properties of the materials and devices including the application of advanced admittance-based easements was completed.

  6. Preliminary assessment of the ecological risks to wide-ranging wildlife species on the Oak Ridge Reservation

    SciTech Connect (OSTI)

    Sample, B.E.; Baron, L.A.; Jackson, B.L.

    1995-08-01T23:59:59.000Z

    Historically, ecological risk assessment at CERCLA sites [such as the Oak Ridge Reservation (ORR)], has focused on species that may be definitively associated with a contaminated area or source operable unit. Consequently the species that are generally considered are those with home ranges small enough such that multiple individuals or a distinct population can be expected to reside within the boundaries of the contaminated site. This approach is adequate for sites with single, discrete areas of contamination that only provide habitat for species with limited requirements. This approach is not adequate however for large sites with multiple, spatially separated contaminated areas that provide habitat for wide-ranging wildlife species. Because wide-ranging wildlife species may travel between and use multiple contaminated sites they may be exposed to and be at risk from contaminants from multiple locations. Use of a particular contaminated site by wide-ranging species will be dependent upon the amount of suitable habitat available at that site. Therefore to adequately evaluate risks to wide-ranging species at the ORR-wide scale, the use of multiple contaminated sites must be weighted by the amount of suitable habitat on OUs. This reservation-wide ecological risk assessment is intended to identify which endpoints are significantly at risk; which contaminants are responsible for this risk; and which OUs significantly contribute to risk.

  7. High damping properties of magnetic particles doped rubber composites at wide frequency

    SciTech Connect (OSTI)

    Tian, Ye, E-mail: schtiany@163.com [Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan 030051 (China); College of Material Science and Engineering, North University of China, Taiyuan 030051 (China); Liu, Yaqing, E-mail: lyq@nuc.edu.cn [Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan 030051 (China); College of Material Science and Engineering, North University of China, Taiyuan 030051 (China); He, Minhong; Zhao, Guizhe; Sun, Youyi [Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, North University of China, Taiyuan 030051 (China); College of Material Science and Engineering, North University of China, Taiyuan 030051 (China)

    2013-05-15T23:59:59.000Z

    Highlights: ? A new kind of permanent magnetic rubber was prepared. ? The microstructure and magnetic properties were investigated. ? The mechanical and damping properties were discussed. ? The new material is expected to be an isolator material to a changed frequency. - Abstract: A new kind of rubber composite was prepared by doping SrFe{sub 12}O{sub 19} nanoparticles coated with silane coupling agents (Si-69) into nitrile butadiene rubber (NBR) matrix, which was characterized by the scanning electron microscopy and X-ray spectroscopy. The results showed that the SrFe{sub 12}O{sub 19} nanoparticles were well dispersed in rubber matrix. Furthermore, the mechanical and magnetic properties of the rubber composites were investigated, in which the high tensile strength (15.8 MPa) and high saturation magnetization (22.9 emu/g) were observed. What is more, the high loss factor of the rubber composites was also obtained in a wide frequency range (0–100 Hz) at high loading (80 phr). The result is attributed to that the permanent magnetic field in rubber nanocomposites can absorb shock energy. These results indicate that the new kind of permanent magnetic rubber is expected to be a smart isolator material, in which the isolator will be able to adapt to a changed frequency.

  8. A Narrow Short-Duration GRB Jet from a Wide Central Engine

    E-Print Network [OSTI]

    Duffell, Paul C; MacFadyen, Andrew I

    2015-01-01T23:59:59.000Z

    We use two-dimensional relativistic hydrodynamic numerical calculations to show that highly collimated relativistic jets can be produced in neutron star merger models of short-duration gamma ray bursts without the need for a highly directed engine or a large net magnetic flux. Even a hydrodynamic engine generating a very wide sustained outflow on small scales can in principle produce a highly collimated relativistic jet, facilitated by a dense surrounding medium which provides a cocoon surrounding the jet core. An oblate geometry to the surrounding gas significantly enhances the collimation process. Previous numerical simulations have shown that the merger of two neutron stars produces an oblate, expanding cloud of dynamical ejecta. We show that this gas can efficiently collimate the central engine power much as the surrounding star does in long-duration GRB models. For typical short-duration GRB central engine parameters, we find jets with opening angles of order 10 degrees in which a large fraction of the t...

  9. Substructure in clusters containing wide-angle tailed radio galaxies. I. New redshifts

    E-Print Network [OSTI]

    Pinkney, J C; Ledlow, M J; Gómez, P L; Hill, J M; Pinkney, Jason; Burns, Jack O.; Ledlow, Michael J.; Gomez, Percy L.; Hill, John M.

    2000-01-01T23:59:59.000Z

    We present new redshifts and positions for 635 galaxies in nine rich clusters containing Wide-Angle Tailed (WAT) radio galaxies. Combined with existing data, we now have a sample of 18 WAT-containing clusters with more than 10 redshifts. This sample contains a substantial portion of the WAT clusters in the VLA 20 cm survey of Abell clusters, including 75% of WAT clusters in the complete survey (z0.09. It is a representative sample which should not contain biases other than selection by radio morphology. We graphically present the new data using histograms and sky maps. A semi-automated procedure is used to search for emission lines in the spectra in order to add and verify galaxy redshifts. We find that the average apparent fraction of emission line galaxies is about 9% in both the clusters and the field. We investigate the magnitude completeness of our redshift surveys with CCD data for a test case, Abell 690. This case indicates that our galaxy target lists are deeper than the detection limit of a typical M...

  10. Substructure in clusters containing wide-angle tailed radio galaxies. I. New redshifts

    E-Print Network [OSTI]

    Jason Pinkney; Jack O. Burns; Michael J. Ledlow; Percy L. Gomez; John M. Hill

    2000-11-08T23:59:59.000Z

    We present new redshifts and positions for 635 galaxies in nine rich clusters containing Wide-Angle Tailed (WAT) radio galaxies. Combined with existing data, we now have a sample of 18 WAT-containing clusters with more than 10 redshifts. This sample contains a substantial portion of the WAT clusters in the VLA 20 cm survey of Abell clusters, including 75% of WAT clusters in the complete survey (z0.09. It is a representative sample which should not contain biases other than selection by radio morphology. We graphically present the new data using histograms and sky maps. A semi-automated procedure is used to search for emission lines in the spectra in order to add and verify galaxy redshifts. We find that the average apparent fraction of emission line galaxies is about 9% in both the clusters and the field. We investigate the magnitude completeness of our redshift surveys with CCD data for a test case, Abell 690. This case indicates that our galaxy target lists are deeper than the detection limit of a typical MX exposure, and they are 82% complete down to R=19.0. The importance of the uniformity of the placement of fibers on targets is posited, and we evaluate this in our datasets. We find some cases of non-uniformities which may influence dynamical analyses. A second paper will use this database to look for correlations between the WAT radio morphology and the cluster's dynamical state.

  11. Wide tracking range, auto ranging, low jitter phase lock loop for swept and fixed frequency systems

    DOE Patents [OSTI]

    Kerner, Thomas M. (Manorville, NY)

    2001-01-01T23:59:59.000Z

    The present invention provides a wide tracking range phase locked loop (PLL) circuit that achieves minimal jitter in a recovered clock signal, regardless of the source of the jitter (i.e. whether it is in the source or the transmission media). The present invention PLL has automatic harmonic lockout detection circuitry via a novel lock and seek control logic in electrical communication with a programmable frequency discriminator and a code balance detector. (The frequency discriminator enables preset of a frequency window of upper and lower frequency limits to derive a programmable range within which signal acquisition is effected. The discriminator works in combination with the code balance detector circuit to minimize the sensitivity of the PLL circuit to random data in the data stream). In addition, the combination of a differential loop integrator with the lock and seek control logic obviates a code preamble and guarantees signal acquisition without harmonic lockup. An adaptive cable equalizer is desirably used in combination with the present invention PLL to recover encoded transmissions containing a clock and/or data. The equalizer automatically adapts to equalize short haul cable lengths of coaxial and twisted pair cables or wires and provides superior jitter performance itself. The combination of the equalizer with the present invention PLL is desirable in that such combination permits the use of short haul wires without significant jitter.

  12. Method for implantation of high dopant concentrations in wide band gap materials

    DOE Patents [OSTI]

    Usov, Igor (Los Alamos, NM); Arendt, Paul N. (Los Alamos, NM)

    2009-09-15T23:59:59.000Z

    A method that combines alternate low/medium ion dose implantation with rapid thermal annealing at relatively low temperatures. At least one dopant is implanted in one of a single crystal and an epitaxial film of the wide band gap compound by a plurality of implantation cycles. The number of implantation cycles is sufficient to implant a predetermined concentration of the dopant in one of the single crystal and the epitaxial film. Each of the implantation cycles includes the steps of: implanting a portion of the predetermined concentration of the one dopant in one of the single crystal and the epitaxial film; annealing one of the single crystal and the epitaxial film and implanted portion at a predetermined temperature for a predetermined time to repair damage to one of the single crystal and the epitaxial film caused by implantation and activates the implanted dopant; and cooling the annealed single crystal and implanted portion to a temperature of less than about 100.degree. C. This combination produces high concentrations of dopants, while minimizing the defect concentration.

  13. A wide variety of injection molding technologies is now applicable to small series and mass production

    SciTech Connect (OSTI)

    Bloß, P., E-mail: bloss@kuz-leipzig.de, E-mail: juettner@kuz-leipzig.de, E-mail: jacob@kuz-leipzig.de, E-mail: loeser@kuz-leipzig.de, E-mail: michaelis@kuz-leipzig.de, E-mail: krajewsky@kuz-leipzig.de; Jüttner, G., E-mail: bloss@kuz-leipzig.de, E-mail: juettner@kuz-leipzig.de, E-mail: jacob@kuz-leipzig.de, E-mail: loeser@kuz-leipzig.de, E-mail: michaelis@kuz-leipzig.de, E-mail: krajewsky@kuz-leipzig.de; Jacob, S., E-mail: bloss@kuz-leipzig.de, E-mail: juettner@kuz-leipzig.de, E-mail: jacob@kuz-leipzig.de, E-mail: loeser@kuz-leipzig.de, E-mail: michaelis@kuz-leipzig.de, E-mail: krajewsky@kuz-leipzig.de; Löser, C., E-mail: bloss@kuz-leipzig.de, E-mail: juettner@kuz-leipzig.de, E-mail: jacob@kuz-leipzig.de, E-mail: loeser@kuz-leipzig.de, E-mail: michaelis@kuz-leipzig.de, E-mail: krajewsky@kuz-leipzig.de; Michaelis, J., E-mail: bloss@kuz-leipzig.de, E-mail: juettner@kuz-leipzig.de, E-mail: jacob@kuz-leipzig.de, E-mail: loeser@kuz-leipzig.de, E-mail: michaelis@kuz-leipzig.de, E-mail: krajewsky@kuz-leipzig.de; Krajewsky, P., E-mail: bloss@kuz-leipzig.de, E-mail: juettner@kuz-leipzig.de, E-mail: jacob@kuz-leipzig.de, E-mail: loeser@kuz-leipzig.de, E-mail: michaelis@kuz-leipzig.de, E-mail: krajewsky@kuz-leipzig.de [Kunststoff-Zentrum in Leipzig gGmbH (KuZ), Leipzig (Germany)

    2014-05-15T23:59:59.000Z

    Micro plastic parts open new fields for application, e. g., to electronics, sensor technologies, optics, and medical engineering. Before micro parts can go to mass production, there is a strong need of having the possibility for testing different designs and materials including material combinations. Hence, flexible individual technical and technological solutions for processing are necessary. To manufacture high quality micro parts, a micro injection moulding machine named formicaPlast based on a two-step plunger injection technology was developed. Resulting from its design, the residence time and the accuracy problems for managing small shot volumes with reproducible high accuracy are uncompromisingly solved. Due to their simple geometry possessing smooth transitions and non adherent inner surfaces, the plunger units allow to process 'all' thermoplastics from polyolefines to high performance polymers, optical clear polymers, thermally sensitive bioresorbables, highly filled systems (the so-called powder injection molding PIM), and liquid silicon rubber (LSR, here with a special kit). The applied platform strategy in the 1K and 2K version allows integrating automation for assembling, handling and packaging. A perpendicular arrangement allows encapsulation of inserts, also partially, and integration of this machine into process chains. Considering a wide variety of different parts consisting of different materials, the high potential of the technology is demonstrated. Based on challenging industrial parts from electronic applications (2K micro MID and bump mat, where both are highly structured parts), the technological solutions are presented in more detail.

  14. Identifications of FIRST radio sources in the NOAO Deep-Wide Field Survey

    E-Print Network [OSTI]

    K. EL Bouchefry; C. M. Cress

    2007-02-05T23:59:59.000Z

    In this paper we present the results of an optical and near infrared identification of 514 radio sources from the FIRST survey (Faint Images of the Radio Sky Survey at Twenty centimeters) with a flux-density limit of 1 mJy in the NOAO Deep-Wide Field Survey (NDWFS) Bootes field. Using optical (Bw, R, I) and K band data with approximate limits of Bw ~ 25.5mag, R ~ 25.8 mag, I ~25.5 mag and K~19.4 mag, optical counterparts have been identified for 378 of 514 FIRST radio sources. This corresponds to an identification rate of 34% in four bands (BwRIK), 60% in optical bands (BwRI) and 74% in I band. Photometric redshifts for these sources have been computed using the hyperz code. The inclusion of quasar template spectra in hyperz is investigated. We note that the photometric data are, in many cases, best matched to templates with very short star-formation timescales and the inferred ages of identified galaxies depend strongly on the assumptions about the star-formation timescale. The redshifts obtained are fairly consistent with those expected from the K-z relation for brighter radio sources but there is more scatter in the K-z diagram at z<1.

  15. THE WIDE-AREA ENERGY STORAGE AND MANAGEMENT SYSTEM PHASE II Final Report - Flywheel Field Tests

    SciTech Connect (OSTI)

    Lu, Ning; Makarov, Yuri V.; Weimar, Mark R.; Rudolph, Frank; Murthy, Shashikala; Arseneaux, Jim; Loutan, Clyde; Chowdhury, S.

    2010-08-31T23:59:59.000Z

    This research was conducted by Pacific Northwest National Laboratory (PNNL) operated for the U.S. department of Energy (DOE) by Battelle Memorial Institute for Bonneville Power Administration (BPA), California Institute for Energy and Environment (CIEE) and California Energy Commission (CEC). A wide-area energy management system (WAEMS) is a centralized control system that operates energy storage devices (ESDs) located in different places to provide energy and ancillary services that can be shared among balancing authorities (BAs). The goal of this research is to conduct flywheel field tests, investigate the technical characteristics and economics of combined hydro-flywheel regulation services that can be shared between Bonneville Power Administration (BPA) and California Independent System Operator (CAISO) controlled areas. This report is the second interim technical report for Phase II of the WAEMS project. This report presents: 1) the methodology of sharing regulation service between balancing authorities, 2) the algorithm to allocate the regulation signal between the flywheel and hydro power plant to minimize the wear-and-tear of the hydro power plants, 3) field results of the hydro-flywheel regulation service (conducted by the Beacon Power), and 4) the performance metrics and economic analysis of the combined hydro-flywheel regulation service.

  16. Automatic scanning of nuclear emulsions with wide-angle acceptance for nuclear fragment detection

    E-Print Network [OSTI]

    T. Fukuda; S. Fukunaga; H. Ishida; K. Kodama; T. Matsuo; S. Mikado; S. Ogawa; H. Shibuya; J. Sudo

    2013-01-09T23:59:59.000Z

    Nuclear emulsion, a tracking detector with sub-micron position resolution, has played a successful role in the field of particle physics and the analysis speed has been substantially improved by the development of automated scanning systems. This paper describes a newly developed automated scanning system and its application to the analysis of nuclear fragments emitted almost isotropically in nuclear evaporation. This system is able to recognize tracks of nuclear fragments up to |tan{\\theta}|nuclear emulsion is the first trial. Furthermore the track recognition algorithm is performed by a powerful Graphics Processing Unit (GPU) for the first time. This GPU has a sufficient computing power to process large area scanning data with a wide angular acceptance and enough flexibility to allow the tuning of the recognition algorithm. This new system will in particular be applied in the framework of the OPERA experiment : the background in the sample of tau decay candidates due to hadronic interactions will be reduced by a better detection of the emitted nuclear fragments.

  17. Fabrication of stable, wide-bandgap thin films of Mg, Zn and O

    DOE Patents [OSTI]

    Katiyar, Ram S.; Bhattacharya, Pijush; Das, Rasmi R.

    2006-07-25T23:59:59.000Z

    A stable, wide-bandgap (approximately 6 eV) ZnO/MgO multilayer thin film is fabricated using pulsed-laser deposition on c-plane Al2O3 substrates. Layers of ZnO alternate with layers of MgO. The thickness of MgO is a constant of approximately 1 nm; the thicknesses of ZnO layers vary from approximately 0.75 to 2.5 nm. Abrupt structural transitions from hexagonal to cubic phase follow a decrease in the thickness of ZnO sublayers within this range. The band gap of the thin films is also influenced by the crystalline structure of multilayer stacks. Thin films with hexagonal and cubic structure have band-gap values of 3.5 and 6 eV, respectively. In the hexagonal phase, Mg content of the films is approximately 40%; in the cubic phase Mg content is approximately 60%. The thin films are stable and their structural and optical properties are unaffected by annealing at 750.degree. C.

  18. Wide angle x-ray scattering of proteins : effect of beam exposure on protein integrity.

    SciTech Connect (OSTI)

    Fischetti, R. F.; Rodi, D. J.; Mirza, A.; Makowski, L.; Illinois Inst. of Tech.

    2003-01-01T23:59:59.000Z

    Wide-angle X-ray scattering patterns from proteins in solution contain information relevant to the determination of protein fold. At relevant scattering angles, however, these data are weak, and the degree to which they might be used to categorize the fold of a protein is unknown. Preliminary work has been performed at the BioCAT insertion-device beamline at the Advanced Photon Source which demonstrates that one can collect X-ray scattering data from proteins in solution to spacings of at least 2.2 {angstrom} (q = 2.8 {angstrom}-1). These data are sensitive to protein conformational states, and are in good agreement with the scattering predicted by the program CRYSOL using the known three-dimensional atomic coordinates of the protein. An important issue in the exploitation of this technique as a tool for structural genomics is the extent to which the high intensity of X-rays available at third-generation synchrotron sources chemically or structurally damage proteins. Various data-collection protocols have been investigated demonstrating conditions under which structural degradation of even sensitive proteins can be minimized, making this technique a viable tool for protein fold categorization, the study of protein folding, unfolding, protein-ligand interactions and domain movement.

  19. Channelization architecture for wide-band slow light in atomic vapors

    E-Print Network [OSTI]

    Zachary Dutton; Mark Bashkansky; Michael Steiner; John Reintjes

    2005-10-20T23:59:59.000Z

    We propose a ``channelization'' architecture to achieve wide-band electromagnetically induced transparency (EIT) and ultra-slow light propagation in atomic Rb-87 vapors. EIT and slow light are achieved by shining a strong, resonant ``pump'' laser on the atomic medium, which allows slow and unattenuated propagation of a weaker ``signal'' beam, but only when a two-photon resonance condition is satisfied. Our wideband architecture is accomplished by dispersing a wideband signal spatially, transverse to the propagation direction, prior to entering the atomic cell. When particular Zeeman sub-levels are used in the EIT system, then one can introduce a magnetic field with a linear gradient such that the two-photon resonance condition is satisfied for each individual frequency component. Because slow light is a group velocity effect, utilizing differential phase shifts across the spectrum of a light pulse, one must then introduce a slight mismatch from perfect resonance to induce a delay. We present a model which accounts for diffusion of the atoms in the varying magnetic field as well as interaction with levels outside the ideal three-level system on which EIT is based. We find the maximum delay-bandwidth product decreases with bandwidth, and that delay-bandwidth product ~1 should be achievable with bandwidth ~50 MHz (~5 ns delay). This is a large improvement over the ~1 MHz bandwidths in conventional slow light systems and could be of use in signal processing applications.

  20. Wide-angle ITER-prototype tangential infrared and visible viewing system for DIII-D

    SciTech Connect (OSTI)

    Lasnier, C. J., E-mail: lasnier@LLNL.gov; Allen, S. L.; Ellis, R. E.; Fenstermacher, M. E.; McLean, A. G.; Meyer, W. H.; Morris, K.; Seppala, L. G. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808 (United States); Crabtree, K. [College of Optics, University of Arizona, Tucson, Arizona 85721 (United States); Van Zeeland, M. A. [General Atomics, P.O. Box 85608, San Diego, California 92186-5608 (United States)

    2014-11-15T23:59:59.000Z

    An imaging system with a wide-angle tangential view of the full poloidal cross-section of the tokamak in simultaneous infrared and visible light has been installed on DIII-D. The optical train includes three polished stainless steel mirrors in vacuum, which view the tokamak through an aperture in the first mirror, similar to the design concept proposed for ITER. A dichroic beam splitter outside the vacuum separates visible and infrared (IR) light. Spatial calibration is accomplished by warping a CAD-rendered image to align with landmarks in a data image. The IR camera provides scrape-off layer heat flux profile deposition features in diverted and inner-wall-limited plasmas, such as heat flux reduction in pumped radiative divertor shots. Demonstration of the system to date includes observation of fast-ion losses to the outer wall during neutral beam injection, and shows reduced peak wall heat loading with disruption mitigation by injection of a massive gas puff.

  1. Wide-Area Mapping of 155 Micron Continuum Emission from the Orion Molecular Cloud Complex

    E-Print Network [OSTI]

    S. Arimura; H. Shibai; T. Teshima; T. Nakagawa; M. Narita; S. Makiuti; Y. Doi; R. P. Verma; S. K. Ghosh; T. N. Rengarajan; M. Tanaka; H. Okuda

    2004-03-03T23:59:59.000Z

    We present the results of a wide-area mapping of the far-infrared continuum emission toward the Orion complex by using a Japanese balloon-borne telescope. The 155-um continuum emission was detected over a region of 1.5 deg^2 around the KL nebula with 3' resolution similar to that of the IRAS 100-um map. Assuming a single-temperature model of the thermal equilibrium dust, maps of the temperature and the optical depth were derived from the 155 um intensity and the IRAS 100 um intensity. The derived dust temperature is 5 - 15 K lower and the derived dust optical thickness were derived from the 155-um intensity and the IRAS 100-um intensity. The derived dust temperature is 5 - 15 K lower and the derived dust optical depth is 5 - 300 times larger than those derived from the IRAS 60 and 100-um intensities due to the significant contribution of the statistically heated very small grains to the IRAS 60-um intensity. The optical-thickness distribution shows a filamentary dust ridge that has a 1.5 degrees extent in the north - south direction and well resembles the Integral-Shaped Filament (ISF) molecular gas distribution. The gas-to-dust ratio derived from the CO molecular gas distribution along the ISF is in the range 30 - 200, which may be interpreted as being an effect of CO depletion due to the photodissociation and/or the freezing on dust grains.

  2. Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor

    DOE Patents [OSTI]

    Krauss, Alan R. (Naperville, IL); Gruen, Dieter M. (Downers Grove, IL); Pellin, Michael J. (Naperville, IL); Auciello, Orlando (Bolingbrook, IL)

    2002-07-23T23:59:59.000Z

    An ultrananocrystalline diamond (UNCD) element formed in a cantilever configuration is used in a highly sensitive, ultra-small sensor for measuring acceleration, shock, vibration and static pressure over a wide dynamic range. The cantilever UNCD element may be used in combination with a single anode, with measurements made either optically or by capacitance. In another embodiment, the cantilever UNCD element is disposed between two anodes, with DC voltages applied to the two anodes. With a small AC modulated voltage applied to the UNCD cantilever element and because of the symmetry of the applied voltage and the anode-cathode gap distance in the Fowler-Nordheim equation, any change in the anode voltage ratio V1/N2 required to maintain a specified current ratio precisely matches any displacement of the UNCD cantilever element from equilibrium. By measuring changes in the anode voltage ratio required to maintain a specified current ratio, the deflection of the UNCD cantilever can be precisely determined. By appropriately modulating the voltages applied between the UNCD cantilever and the two anodes, or limit electrodes, precise independent measurements of pressure, uniaxial acceleration, vibration and shock can be made. This invention also contemplates a method for fabricating the cantilever UNCD structure for the sensor.

  3. Ultrananocrystalline Diamond Cantilever Wide Dynamic Range Acceleration/Vibration /Pressure Sensor

    DOE Patents [OSTI]

    Krauss, Alan R. (Naperville, IL); Gruen, Dieter M. (Downers Grove, IL); Pellin, Michael J. (Naperville, IL); Auciello, Orlando (Bolingbrook, IL)

    2003-09-02T23:59:59.000Z

    An ultrananocrystalline diamond (UNCD) element formed in a cantilever configuration is used in a highly sensitive, ultra-small sensor for measuring acceleration, shock, vibration and static pressure over a wide dynamic range. The cantilever UNCD element may be used in combination with a single anode, with measurements made either optically or by capacitance. In another embodiment, the cantilever UNCD element is disposed between two anodes, with DC voltages applied to the two anodes. With a small AC modulated voltage applied to the UNCD cantilever element and because of the symmetry of the applied voltage and the anode-cathode gap distance in the Fowler-Nordheim equation, any change in the anode voltage ratio V1/V2 required to maintain a specified current ratio precisely matches any displacement of the UNCD cantilever element from equilibrium. By measuring changes in the anode voltage ratio required to maintain a specified current ratio, the deflection of the UNCD cantilever can be precisely determined. By appropriately modulating the voltages applied between the UNCD cantilever and the two anodes, or limit electrodes, precise independent measurements of pressure, uniaxial acceleration, vibration and shock can be made. This invention also contemplates a method for fabricating the cantilever UNCD structure for the sensor.

  4. Effect of Wide-Based Single Tires on Fuel Efficiency of Class 8 Combination Trucks

    SciTech Connect (OSTI)

    Franzese, Oscar [ORNL] [ORNL; Knee, Helmut E [ORNL] [ORNL; Slezak, Lee [U.S. Department of Energy] [U.S. Department of Energy

    2010-01-01T23:59:59.000Z

    In 2007 and 2008, the Oak Ridge National Laboratory, in collaboration with several industry partners, collected real-world performance and situational data for long-haul operations of Class- 8 trucks from a fleet engaged in normal freight operations. Such data and information is useful to support Class-8 modeling of heavy-truck performance, technology evaluation efforts for energy efficiency, and to provide a means of accounting for real-world driving performance within heavy-truck research and analyses. This paper presents some general statistics, including distribution of idling times during long-haul trucking operations. However, the main focus is on the analysis of some of the extensive real-world information collected in this project, specifically on the assessment of the effect that different types of tires (i.e., dual tires vs. new generation single wide-based tires or NGSWBTs) have on the fuel efficiency of Class-8 trucks. The tire effect is also evaluated as a function of the vehicle load level. In all cases analyzed, the statistical tests performed strongly suggest that fuel efficiencies achieved when using all NGSWBTs or combinations of duals and NGSWBTs are higher than in the case of a truck equipped with all dual tires.

  5. A Wide-Field CCD Survey for Centaurs and Kuiper Belt Objects

    E-Print Network [OSTI]

    S. Sheppard; D. Jewitt; C. Trujillo; M. Brown; M. Ashley

    2000-08-29T23:59:59.000Z

    A modified Baker-Nunn camera was used to conduct a wide-field survey of 1428 square degrees of sky near the ecliptic in search of bright Kuiper Belt objects and Centaurs. This area is an order of magnitude larger than any previously published CCD survey for Centaurs and Kuiper Belt Objects. No new objects brighter than red magnitude m=18.8 and moving at a rate 1"/hr to 20"/hr were discovered, although one previously discovered Centaur 1997 CU26 Chariklo was serendipitously detected. The parameters of the survey were characterized using both visual and automated techniques. From this survey the empirical projected surface density of Centaurs was found to be SigmaCentaur(m 1 km) assuming a geometric albedo of 0.04. About 100 Centaurs are larger than 50 km in radius, of which only 4 are presently known. The current total mass of the Centaurs is 10^-4 Earth Masses. No dust clouds were detected resulting from Kuiper Belt object collisions, placing a 3sigma upper limit <600 collisionally produced clouds of m<18.8 per year.

  6. Novel wide band gap materials for highly efficient thin film tandem solar cells

    SciTech Connect (OSTI)

    Brian E. Hardin, Stephen T. Connor, Craig H. Peters

    2012-06-11T23:59:59.000Z

    Tandem solar cells (TSCs), which use two or more materials to absorb sunlight, have achieved power conversion efficiencies of >25% versus 11-20% for commercialized single junction solar cell modules. The key to widespread commercialization of TSCs is to develop the wide-band, top solar cell that is both cheap to fabricate and has a high open-circuit voltage (i.e. >1V). Previous work in TSCs has generally focused on using expensive processing techniques with slow growth rates resulting in costs that are two orders of magnitude too expensive to be used in conventional solar cell modules. The objective of the PLANT PV proposal was to investigate the feasibility of using Ag(In,Ga)Se2 (AIGS) as the wide-bandgap absorber in the top cell of a thin film tandem solar cell (TSC). Despite being studied by very few in the solar community, AIGS solar cells have achieved one of the highest open-circuit voltages within the chalcogenide material family with a Voc of 949mV when grown with an expensive processing technique (i.e. Molecular Beam Epitaxy). PLANT PV�s goal in Phase I of the DOE SBIR was to 1) develop the chemistry to grow AIGS thin films via solution processing techniques to reduce costs and 2) fabricate new device architectures with high open-circuit voltage to produce full tandem solar cells in Phase II. PLANT PV attempted to translate solution processing chemistries that were successful in producing >12% efficient Cu(In,Ga)Se2 solar cells by replacing copper compounds with silver. The main thrust of the research was to determine if it was possible to make high quality AIGS thin films using solution processing and to fully characterize the materials properties. PLANT PV developed several different types of silver compounds in an attempt to fabricate high quality thin films from solution. We found that silver compounds that were similar to the copper based system did not result in high quality thin films. PLANT PV was able to deposit AIGS thin films using a mixture of solution and physical vapor deposition processing, but these films lacked the p-type doping levels that are required to make decent solar cells. Over the course of the project PLANT PV was able to fabricate efficient CIGS solar cells (8.7%) but could not achieve equivalent performance using AIGS. During the nine-month grant PLANT PV set up a variety of thin film characterization tools (e.g. drive-level capacitance profiling) at the Molecular Foundry, a Department of Energy User Facility, that are now available to both industrial and academic researchers via the grant process. PLANT PV was also able to develop the back end processing of thin film solar cells at Lawrence Berkeley National Labs to achieve 8.7% efficient CIGS solar cells. This processing development will be applied to other types of thin film PV cells at the Lawrence Berkeley National Labs. While PLANT PV was able to study AIGS film growth and optoelectronic properties we concluded that AIGS produced using these methods would have a limited efficiency and would not be commercially feasible. PLANT PV did not apply for the Phase II of this grant.

  7. ETDEWEB versus the World-Wide-Web: a specific database/web comparison

    SciTech Connect (OSTI)

    Cutler, D.

    2010-06-28T23:59:59.000Z

    A study was performed comparing user search results from the specialized scientific database on energy-related information, ETDEWEB, with search results from the internet search engines Google and Google Scholar. The primary objective of the study was to determine if ETDEWEB (the Energy Technology Data Exchange – World Energy Base) continues to bring the user search results that are not being found by Google and Google Scholar. As a multilateral information exchange initiative, ETDE’s member countries and partners contribute cost- and task-sharing resources to build the largest database of energy-related information in the world. As of early 2010, the ETDEWEB database has 4.3 million citations to world-wide energy literature. One of ETDEWEB’s strengths is its focused scientific content and direct access to full text for its grey literature (over 300,000 documents in PDF available for viewing from the ETDE site and over a million additional links to where the documents can be found at research organizations and major publishers globally). Google and Google Scholar are well-known for the wide breadth of the information they search, with Google bringing in news, factual and opinion-related information, and Google Scholar also emphasizing scientific content across many disciplines. The analysis compared the results of 15 energy-related queries performed on all three systems using identical words/phrases. A variety of subjects was chosen, although the topics were mostly in renewable energy areas due to broad international interest. Over 40,000 search result records from the three sources were evaluated. The study concluded that ETDEWEB is a significant resource to energy experts for discovering relevant energy information. For the 15 topics in this study, ETDEWEB was shown to bring the user unique results not shown by Google or Google Scholar 86.7% of the time. Much was learned from the study beyond just metric comparisons. Observations about the strengths of each system and factors impacting the search results are also shared along with background information and summary tables of the results. If a user knows a very specific title of a document, all three systems are helpful in finding the user a source for the document. But if the user is looking to discover relevant documents on a specific topic, each of the three systems will bring back a considerable volume of data, but quite different in focus. Google is certainly a highly-used and valuable tool to find significant ‘non-specialist’ information, and Google Scholar does help the user focus on scientific disciplines. But if a user’s interest is scientific and energy-specific, ETDEWEB continues to hold a strong position in the energy research, technology and development (RTD) information field and adds considerable value in knowledge discovery. (auth)

  8. The WSRT wide-field HI survey: I. The background galaxy sample

    E-Print Network [OSTI]

    Robert Braun; David Thilker; Rene Walterbos

    2003-05-21T23:59:59.000Z

    We have used the Westerbork array to carry out an unbiased wide-field survey for HI emission features, achieving an RMS sensitivity of about 18 mJy/Beam at a velocity resolution of 17 km/s over 1800 deg^2 and between -1000 < V_Hel<+6500 km/s. The primary data consists of auto-correlation spectra with an effective angular resolution of 49' FWHM. We detect 155 external galaxies in excess of 8 sigma in integrated HI flux density. Plausible optical associations are found within a 30' search radius for all but one of our HI detections in DSS images, although several are not previously cataloged or do not have published red-shift determinations. Twenty-three of our objects are detected in HI for the first time. We classify almost half of our detections as ``confused'', since one or more companions is cataloged within a radius of 30' and a velocity interval of 400 km/s. We identify a handful of instances of significant positional offsets exceeding 10 kpc of unconfused optical galaxies with the associated HI centroid, possibly indicative of severe tidal distortions or uncataloged gas-rich companions. A possible trend is found for an excess of detected HI flux in unconfused galaxies within our large survey beam relative to that detected previously in smaller telescope beams, both as function of increasing distance and increasing gas mass. This may be an indication for a diffuse gaseous component on 100 kpc scales in the environment of massive galaxies or a population of uncataloged low mass companions. We use our galaxy sample to estimate the HI mass function from our survey volume. Good agreement is found with the HIPASS BGC results, but only after explicit correction for galaxy density variations with distance.

  9. Generation of high-current electron beam in a wide-aperture open discharge

    SciTech Connect (OSTI)

    Bokhan, P. A.; Zakrevsky, Dm. E.; Gugin, P. P. [A. V. Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, prospekt Lavrent'eva 13, Novosibirsk 630090 (Russian Federation)

    2011-10-15T23:59:59.000Z

    In the present study, it was examined generation of nanosecond-duration electron-beam (EB) pulses by a wide-aperture open discharge burning in helium or in a mixture of helium with nitrogen and water vapor. In the experiments, a discharge cell with coaxial electrode geometry, permitting radial injection of the electron beam into operating lasing medium, was used, with the cathode having radius 2.5 cm and length 12 cm. It was shown possible to achieve an efficient generation of a high-intensity electron beam (EB pulse power {approx}250 MW and EB pulse energy up to 4 J) in the kiloampere range of discharge currents (up to 26 kA at {approx}12 kV discharge voltage). The current-voltage characteristics of the discharge proved to be independent of the working-gas pressure. The existence of an unstable dynamic state of EB, conditioned by the presence of an uncompensated space charge accumulated in the discharge cell due to the exponential growth of the current in time during discharge initiation and the hyperbolic growth of current density in the direction towards the tube axis, was revealed. The obtained pulsed electron beam was used to excite the self-terminated laser on He 2{sup 1}P{sub 1}{sup 0}-2{sup 1}S{sub 0} transition. The oscillations developing in the discharge cell at high discharge currents put limit to the pumping energy and emissive power of the laser excited with the radially converging electron beam.

  10. A wide-field photometric study of the globular cluster system of NGC 4636

    E-Print Network [OSTI]

    Boris Dirsch; Ylva Schuberth; Tom Richtler

    2005-03-13T23:59:59.000Z

    We investigate the unusually rich cluster system of NGC4636 with wide-field Washington photometry. The globular cluster luminosity function can be followed roughly 1 mag beyond the turn-over magnitude. This corresponds to a distance modulus of m-M=31.24+-0.17, 0.4 mag larger than the distance determined from surface brightness fluctuations. The high specific frequency is confirmed, yet the exact value remains uncertain because of the uncertain distance: it varies between 5.6+-1.2 and 8.9+-1.2. The globular cluster system has a clearly bimodal color distribution. The color peak positions show no radial dependence and are in good agreement with the values found for other galaxies studied in the same filter system. However, a luminosity dependence is found: brighter clusters with an ``intermediate'' color exist. The clusters exhibit a shallow radial distribution within 7'.Within the same radial interval, the galaxy light has a distinctly steeper profile. Because of the difference in the cluster and light distribution the specific frequency increases considerably with radius. At 7' and 9' the density profiles of the red and blue clusters, respectively, change strongly which indicates that we reach the outer rim of the cluster system at approximately 11'. This feature is seen for the first time in a globular cluster system. While the radial distribution of the cluster and field populations are rather different, this is not true for the ellipticity of the system: the elongation as well as the position angle of the cluster system agree well with the galaxy light. We compare the radial distribution of globular clusters with the light profiles for a sample of elliptical galaxies. The difference observed in NGC 4636 is typical of an elliptical galaxy of this luminosity.

  11. WEAK LENSING MEASUREMENT OF GALAXY CLUSTERS IN THE CFHTLS-WIDE SURVEY

    SciTech Connect (OSTI)

    Shan Huanyuan; Tao Charling [Department of Physics and Tsinghua Center for Astrophysics, Tsinghua University, Beijing, 100084 (China); Kneib, Jean-Paul; Jauzac, Mathilde; Limousin, Marceau [Laboratoire d'Astrophysique de Marseille, CNRS-Universite de Provence, 38 rue Frederic Joliot-Curie, F-13388 Marseille Cedex 13 (France); Fan Zuhui [Department of Astronomy, Peking University, Beijing, 100871 (China); Massey, Richard [Institute for Astronomy, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom); Rhodes, Jason [California Institute of Technology, MC 350-17, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Thanjavur, Karun [Canada France Hawaii Telescope, 65-1238 Mamalahoa Hwy, Kamuela, HI 96743 (United States); McCracken, Henry J., E-mail: shanhuany@gmail.com [Institude d'Astrophysique de Paris, UMR 7095, 98 bis Boulevard Arago, F-75014 Paris (France)

    2012-03-20T23:59:59.000Z

    We present the first weak gravitational lensing analysis of the completed Canada-France-Hawaii Telescope Legacy Survey (CFHTLS). We study the 64 deg{sup 2} W1 field, the largest of the CFHTLS-Wide survey fields, and present the largest contiguous weak lensing convergence 'mass map' yet made. 2.66 million galaxy shapes are measured, using the Kaiser Squires and Broadhurst Method (KSB) pipeline verified against high-resolution Hubble Space Telescope imaging that covers part of the CFHTLS. Our i'-band measurements are also consistent with an analysis of independent r'-band imaging. The reconstructed lensing convergence map contains 301 peaks with signal-to-noise ratio {nu} > 3.5, consistent with predictions of a {Lambda}CDM model. Of these peaks, 126 lie within 3.'0 of a brightest central galaxy identified from multicolor optical imaging in an independent, red sequence survey. We also identify seven counterparts for massive clusters previously seen in X-ray emission within 6 deg{sup 2} XMM-LSS survey. With photometric redshift estimates for the source galaxies, we use a tomographic lensing method to fit the redshift and mass of each convergence peak. Matching these to the optical observations, we confirm 85 groups/clusters with {chi}{sup 2}{sub reduced} < 3.0, at a mean redshift (z{sub c} ) = 0.36 and velocity dispersion ({sigma}{sub c}) = 658.8 km s{sup -1}. Future surveys, such as DES, LSST, KDUST, and EUCLID, will be able to apply these techniques to map clusters in much larger volumes and thus tightly constrain cosmological models.

  12. EIS/Hinode observations of Doppler flow seen through the 40 arcsec wide slit

    E-Print Network [OSTI]

    D. E. Innes; R. Attie; H. Hara; M. S. Madjarska

    2008-07-08T23:59:59.000Z

    The Extreme ultraviolet Imaging Spectrometer (EIS) on board Hinode is the first solar telescope to obtain wide slit spectral images that can be used for detecting Doppler flows in transition region and coronal lines on the Sun and to relate them to their surrounding small scale dynamics. We select EIS lines covering the temperature range 6x10^4 K to 2x10^6 K that give spectrally pure images of the Sun with the 40 arcsec slit. In these images Doppler shifts are seen as horizontal brightenings. Inside the image it is difficult to distinguish shifts from horizontal structures but emission beyond the image edge can be unambiguously identified as a line shift in several lines separated from others on their blue or red side by more than the width of the spectrometer slit (40 pixels). In the blue wing of He II, we find a large number of events with properties (size and lifetime) similar to the well-studied explosive events seen in the ultraviolet spectral range. Comparison with X-Ray Telescope (XRT) images shows many Doppler shift events at the footpoints of small X-ray loops. The most spectacular event observed showed a strong blue shift in transition region and lower corona lines from a small X-ray spot that lasted less than 7 min. The emission appears to be near a cool coronal loop connecting an X-ray bright point to an adjacent region of quiet Sun. The width of the emission implies a line-of-sight velocity of 220 km/s. In addition, we show an example of an Fe XV shift with a velocity about 120 km/s, coming from what looks like a narrow loop leg connecting a small X-ray brightening to a larger region of X-ray emission.

  13. The WSRT wide-field HI survey: II. Local Group features

    E-Print Network [OSTI]

    Robert Braun; David Thilker

    2003-12-12T23:59:59.000Z

    We have used the WSRT to carry out an unbiased wide-field survey of HI emission features, achieving an RMS sensitivity of about 18 mJy/Beam at a velocity resolution of 17 km/s over 1800 deg^2. In this paper we present our HI detections at negative velocities which could be distinguished from the Galactic foreground. Fully 29% of the entire survey area has high velocity HI emission with N_HI exceeding our 3 sigma limit of about 1.5x10^17cm^-2 over 30 km/s. A faint population of discrete HVCs is detected in the immediate vicinity of M31 which spans a large fraction of the M31 rotation velocity. This class of features is confined to about 12 deg (160 kpc) projected radius of M31 and appears to be physically associated. We detect a diffuse northern extension of the Magellanic Stream (MS) from at least Dec=+20 to +40 deg., which then loops back toward the south. Recent numerical simulations had predicted just such an MS extension corresponding to the apo-galacticon portion of the LMC/SMC orbit at a distance of 125 kpc. A faint bridge of HI emission appears to join the systemic velocities of M31 with that of M33 and continues beyond M31 to the north-west. This may be the first detection of HI associated with the warm-hot intergalactic medium (WHIM). The distribution of peculiar velocity HI associated with M31 can be described by a projected exponential of 25 kpc scale-length and 5x10^17cm^-2 peak column density. We present the distribution function of N_HI in the extended M31 environment, which agrees well with the low red-shift QSO absorption line data over the range log(N_HI)=17.2 to 21.9. Our data extend this comparison about two orders of magnitude lower than previously possible and provide the first image of the Lyman limit absorption system associated with an L* galaxy. (abridged)

  14. Beyond the plane-parallel and Newtonian approach: wide-angle redshift distortions and convergence in general relativity

    SciTech Connect (OSTI)

    Bertacca, Daniele; Maartens, Roy [Physics Department, University of the Western Cape, Cape Town 7535 (South Africa); Raccanelli, Alvise [Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA 91109 (United States); Clarkson, Chris, E-mail: daniele.bertacca@pd.infn.it, E-mail: Roy.Maartens@port.ac.uk, E-mail: Alvise@caltech.edu, E-mail: Clarkson@maths.uct.ac.za [Centre for Astrophysics, Cosmology and Gravitation and Department of Mathematics and Applied Mathematics, University of Cape Town, Cape Town 7701 (South Africa)

    2012-10-01T23:59:59.000Z

    We extend previous analyses of wide-angle correlations in the galaxy power spectrum in redshift space to include all general relativistic effects. These general relativistic corrections to the standard approach become important on large scales and at high redshifts, and they lead to new terms in the wide-angle correlations. We show that in principle the new terms can produce corrections of nearly 10% on Gpc scales over the usual Newtonian approximation. General relativistic corrections will be important for future large-volume surveys such as SKA and Euclid, although the problem of cosmic variance will present a challenge in observing this.

  15. Geographic Information Systems (GIS) Mapping Contest at Boston College Students are invited to present their GIS Mapping work as part of a campus-wide celebration of geospatial

    E-Print Network [OSTI]

    Huang, Jianyu

    to present their GIS Mapping work as part of a campus-wide celebration of geospatial research at Boston

  16. Design and Analysis of a Region-Wide Remotely Controllable Electrical Lock-Out System

    SciTech Connect (OSTI)

    Olama, Mohammed M [ORNL; Allgood, Glenn O [ORNL; Kuruganti, Phani Teja [ORNL; Howlader, Mostofa [ORNL; Kisner, Roger A [ORNL; Ewing, Paul D [ORNL; McIntyre, Timothy J [ORNL

    2012-01-01T23:59:59.000Z

    Electric utilities have a main responsibility to protect the lives and safety of their workers when they are working on low-, medium-, and high-voltage power lines and distribution circuits. With the anticipated widespread deployment of smart grids, a secure and highly reliable means of maintaining isolation of customer-owned distributed generation (DG) from the affected distribution circuits during maintenance is necessary to provide a fully de-energized work area, ensure utility personnel safety, and prevent hazards that can lead to accidents such as accidental electrocution from unanticipated power sources. Some circuits are serviced while energized (live line work) while others are de-energized for maintenance. For servicing de-energized circuits and equipment, lock-out tag-out (LOTO) programs provide a verifiable procedure for ensuring that circuit breakers are locked in the off state and tagged to indicate that status to operational personnel so that the lines will be checked for voltage to verify they are de-energized. The de-energized area is isolated from any energized sources, which traditionally are the substations. This procedure works well when all power sources and their interconnections are known armed with this knowledge, utility personnel can determine the appropriate circuits to de-energize for isolating the target line or equipment. However, with customer-owned DG tied into the grid, the risk of inadvertently reenergizing a circuit increases because circuit connections may not be adequately documented and are not under the direct control of the local utility. Thus, the active device may not be properly de-energized or isolated from the work area. Further, a remote means of de-energizing and locking out energized devices provides an opportunity for greatly reduced safety risk to utility personnel compared to manual operations. In this paper, we present a remotely controllable LOTO system that allows individual workers to determine the configuration and status of electrical system circuits and permit them to lock out customer-owned DG devices for safety purposes using a highly secure and ultra-reliable radio signal. The system consists of: (1) individual personal lockout devices, (2) lockout communications and logic module at circuit breakers, which are located at all DG devices, and (3) a database and configuration control process located at the utility operations center. The lockout system is a close permissive, i.e., loss of control power or communications will cause the circuit breaker to open. Once the DG device is tripped open, a visual means will provide confirmation of a loss of voltage and current that verifies the disconnected status of the DG. Further the utility personnel will be able to place their own lock electronically on the system to ensure a lockout functionally. The proposed LOTO system provides enhanced worker safety and protection against unintended energized lines when DG is present. The main approaches and challenges encountered through designing the proposed region-wide LOTO system are discussed in this paper. These approaches include: (1) evaluating the reliability of the proposed approach under N-modular redundancy with voter/spares configurations and (2) conducting a system level risk assessment study using the failure modes and effects analysis (FMEA) technique to identify and rank failure modes by probability of occurrence, probability of detection, and severity of consequences. This ranking allows a cost benefits analysis to be conducted such that dollars and efforts will be applied to the failures that provide greatest incremental gains in system capability (resilience, survivability, security, reliability, availability, etc.) per dollar spent whether capital, operations, or investment. Several simulation scenarios and their results are presented to demonstrate the viability of these approaches.

  17. 962 IEEE JOURNAL OF PHOTOVOLTAICS, VOL. 4, NO. 3, MAY 2014 Ultrabroadband and Wide-Angle Hybrid

    E-Print Network [OSTI]

    Bowers, John

    962 IEEE JOURNAL OF PHOTOVOLTAICS, VOL. 4, NO. 3, MAY 2014 Ultrabroadband and Wide-Angle Hybrid) are essential to realizing efficiency gains for state-of- the-art multijunction photovoltaic devices approach. Index Terms--Biomimetics, optical films, photovoltaic cells, III­V semiconductor materials. I

  18. University of Southern California Computer science is an enabling discipline at the intersection of a wide array

    E-Print Network [OSTI]

    Zhou, Chongwu

    of a wide array of human endeavors, including biology, nanotechnology, robotics, education, the social Professors and 1 Distinguished Professor »Almost every eligible assistant professor has won an NSF CAREERKempe, assistant professor of computer science, won the USC Viterbi School's Junior Research Award. In his research

  19. Wide-Range Robust Control of Combustion Instability BOE-SHONG HONG, ASOK RAY, and VIGOR YANG*

    E-Print Network [OSTI]

    Ray, Asok

    time V Volume of combustion chamber Un Control input of nth mode vg Velocity of gas phase z AxialWide-Range Robust Control of Combustion Instability BOE-SHONG HONG, ASOK RAY, and VIGOR YANG This paper presents the concept and design of a two-layer robust control system for suppression of combustion

  20. Investigation of Self-Assembly and Micelle Polarity for a Wide Range of Ethylene Oxide-Propylene Oxide-Ethylene

    E-Print Network [OSTI]

    Loh, Watson

    Investigation of Self-Assembly and Micelle Polarity for a Wide Range of Ethylene Oxide-Propylene of 15 EO-PO-EO (EO ) ethylene oxide, PO ) propylene oxide) block copolymers by using three different) propylene oxide) block copolymers, commercially known as Polox- amers, Pluronics, or Synperonics, have been

  1. Abstract--This paper presents the work program of DESIMAX, a collaborative research project looking at wide-scale

    E-Print Network [OSTI]

    Aickelin, Uwe

    , and aggregated demand displays for network operators. The expected outcome of the work in the DESIMAX project looking at wide-scale implementation of demand side management (DSM) within electricity networks. To fully that will be able to capture, predict and demonstrate the response of the power system at time scales ranging from

  2. Scanner-Free and Wide-Field Endoscopic Imaging by Using a Single Multimode Optical Fiber Youngwoon Choi,1

    E-Print Network [OSTI]

    Fang-Yen, Christopher

    Scanner-Free and Wide-Field Endoscopic Imaging by Using a Single Multimode Optical Fiber Youngwoon November 2012) A single multimode fiber is considered an ideal optical element for endoscopic imaging due fiber has been an important turning point. Especially, a multimode optical fiber has drawn interest

  3. Web-Prospector An Automatic, Site-Wide Wrapper Induction Approach for Scientific Deep-Web Databases

    E-Print Network [OSTI]

    Staab, Steffen

    Web-Prospector ­ An Automatic, Site-Wide Wrapper Induction Approach for Scientific Deep-Web of the additional clues commonly available in scientific deep Web databases. The solution consists of a sequence across an entire Web site. We test our algorithm against three real-world biochemical deep Web sources

  4. Control of Induction Motor with Cbrientation on Rotor Flux or on Stator Flux in a very wide Field Weakening Regiori -

    E-Print Network [OSTI]

    Paderborn, Universität

    inductance of stator and rotor winding (Ls = L, = L,,, +Lo is assumed here). Rotor speed. Number of pole pairs. Resistances of stator and rotor winding. Rotor time constant. Electromagnetic torque. Load torqueControl of Induction Motor with Cbrientation on Rotor Flux or on Stator Flux in a very wide Field

  5. Molecular beam epitaxy of n-type ZnS: A wide band gap emitter for heterojunction PV devices

    E-Print Network [OSTI]

    Atwater, Harry

    Molecular beam epitaxy of n-type ZnS: A wide band gap emitter for heterojunction PV devices Jeffrey and AZO transparent conductive oxides did not. Applications to novel PV devices incorporating low electron-ray diffraction, zinc compounds. I. INTRODUCTION The growing interest in scalable, thin-film photovoltaics (PV

  6. Plastic behavior of fcc metals over a wide range of strain: Macroscopic and microscopic descriptions and their relationship

    E-Print Network [OSTI]

    Gubicza, Jenõ

    Plastic behavior of fcc metals over a wide range of strain: Macroscopic and microscopic The room temperature macroscopic and microscopic plastic behavior of four face-centered cubic metals (Al dislocations during plastic flow. It is shown that forest dislocations develop primarily due to interaction

  7. Plastic behavior of face-centered-cubic metals over a wide range Nguyen Q. Chinh a,*, Tamas Csanadi a

    E-Print Network [OSTI]

    Gubicza, Jenõ

    Plastic behavior of face-centered-cubic metals over a wide range of strain Nguyen Q. Chinh a Available online 16 June 2010 Abstract The plastic behavior of four pure face-centered-cubic (fcc) metals plastic deformation. It is shown that at high strains the saturation flow stress and the total dislocation

  8. The Kyoto University Research Administration office (KURA) was established to perform a function that is still not widely known

    E-Print Network [OSTI]

    Takada, Shoji

    -Program for World-Leading Innovative R&D on Science and Technology" called "FIRST Program" is one of them. The total that is still not widely known in Japan. After the establishment of KURA, Kyoto University has been engaged and Technology (MEXT) to further reinforce such initiatives. To achieve top-level research activities and high

  9. Declarative Integration of Interactive 3D Graphics into the World-Wide Web: Principles, Current Approaches, and Research Agenda

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Declarative Integration of Interactive 3D Graphics into the World-Wide Web: Principles, Current With the advent of WebGL, plugin-free hardware-accelerated inter- active 3D graphics has finally arrived in all of incor- porating 3D graphics directly into HTML to enable its use on any Web page. We present declarative

  10. Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report

    E-Print Network [OSTI]

    Spergel, D; Baltay, C; Bennett, D; Breckinridge, J; Donahue, M; Dressler, A; Gaudi, B S; Greene, T; Guyon, O; Hirata, C; Kalirai, J; Kasdin, N J; Macintosh, B; Moos, W; Perlmutter, S; Postman, M; Rauscher, B; Rhodes, J; Wang, Y; Weinberg, D; Benford, D; Hudson, M; Jeong, W -S; Mellier, Y; Traub, W; Yamada, T; Capak, P; Colbert, J; Masters, D; Penny, M; Savransky, D; Sterns, D; Zimmerman, N; Barry, R; Bartusek, L; Carpenter, K; Cheng, E; Content, D; Dekens, F; Demers, R; Grady, K; Jackson, C; Kuan, G; Kruk, J; Melton, M; Nemati, B; Parvin, B; Poberezhskiy, I; Peddie, C; Ruffa, J; Wallace, J K; Whipple, A; Wollack, E; Zhao, F

    2015-01-01T23:59:59.000Z

    This report describes the 2014 study by the Science Definition Team (SDT) of the Wide-Field Infrared Survey Telescope (WFIRST) mission. It is a space observatory that will addresses the most compelling scientific problems in dark energy, exoplanets and general astrophysics using a 2.4m telescope with a wide-field infrared instrument and an optical coronagraph. The Astro2010 Decadal Survey recommended a Wide Field Infrared Survey Telescope as its top priority for a new large space mission. As conceived by the decadal survey, WFIRST would carry out a dark energy science program, a microlensing program to determine the demographics of exoplanets, and a general observing program utilizing its ultra wide field. In October 2012, NASA chartered a Science Definition Team (SDT) to produce, in collaboration with the WFIRST Study Office at GSFC and the Program Office at JPL, a Design Reference Mission (DRM) for an implementation of WFIRST using one of the 2.4-m, Hubble-quality telescope assemblies recently made availabl...

  11. Transcriptome Kinetics Is Governed by a Genome-Wide Coupling of mRNA Production and Degradation: A Role

    E-Print Network [OSTI]

    Pilpel, Yitzhak

    Transcriptome Kinetics Is Governed by a Genome-Wide Coupling of mRNA Production and Degradation dynamics is governed by two opposing processes, mRNA production and degradation. Recent studies found, which are recruited to mRNAs during transcription and later affect their degradation in the cytoplasm

  12. 65Home Power #25 October / November 1991 s PV systems become more widely distributed, the requirements established by

    E-Print Network [OSTI]

    Johnson, Eric E.

    handling equipment. In many cases, charge controllers, inverters, and other PV components may be required65Home Power #25 · October / November 1991 s PV systems become more widely distributed. Each metal case (on switch gear, module frames, charge controllers, inverters, etc.) of an alternate

  13. Thanks to the random movements of agitated molecules, biological rubber allows clams to open wide and insects to fly efficiently.

    E-Print Network [OSTI]

    Denny, Mark

    Thanks to the random movements of agitated molecules, biological rubber allows clams to open wide into the shell's hinge. As the shell closes, this material (a protein rubber called abduction) deforms materials akin to the man-made rubber in automobile tires and rubber bands. The walls of mammalian arteries

  14. BMI231 Final Report Paul Godden Machine Learning for Genome-Wide Association Studies: A Critical Review

    E-Print Network [OSTI]

    1 BMI231 ­ Final Report ­ Paul Godden Machine Learning for Genome-Wide Association Studies studies that have been reported in the research literature. Typically the analyses performed do not take of GWA studies, in order to realise the benefits outlined above, is the application of machine learning

  15. Estimating basin-wide hydraulic parameters of a semi-arid mountainous watershed by recession-flow analysis

    E-Print Network [OSTI]

    Walter, M.Todd

    Estimating basin-wide hydraulic parameters of a semi-arid mountainous watershed by recession 2002; accepted 23 April 2003 Abstract Insufficient sub-surface hydraulic data from watersheds often and in watersheds with low population densities because well-drilling to obtain the hydraulic data is expensive

  16. Abstract--Hybrid vehicle techniques have been widely studied recently because of their potential to significantly improve the

    E-Print Network [OSTI]

    Peng, Huei

    ]). The optimization scheme then figures out the proper split between the two energy sources using steady2002-182 1 Abstract-- Hybrid vehicle techniques have been widely studied recently because a procedure for the design of a near-optimal power management strategy. The design procedure starts

  17. The performance of a multiple-disk centrifugal pump as an artificial ventricle over a wide range of operating parameters

    E-Print Network [OSTI]

    Sidhu, Amrita Singh

    1993-01-01T23:59:59.000Z

    The performance of a multiple-disk centrifugal pump based on the Tesla Turbine design is tested over a wide range of operating conditions. 'This pump is tested on a mock circulatory loop (with a blood analog) approved by the NIH. This valveless...

  18. La Revue de Mtallurgie-CIT Janvier 2006 37 Stainless steel grades are now widely used for

    E-Print Network [OSTI]

    Boyer, Edmond

    La Revue de Métallurgie-CIT Janvier 2006 37 Stainless steel grades are now widely used with the thermomechanical fatigue (TMF) of stainless steels at high temperature, specially behaviour and damage models steel exhaust manifolds. A numerical method is proposed for the design and the lifetime prediction

  19. Plant-Wide Waste Management. 1. Synthesis and Multi-Objective Design Aninda Chakraborty and Andreas A. Linninger

    E-Print Network [OSTI]

    Linninger, Andreas A.

    unbalanced environmental impact. It should not surprise that subsequent cleanup and waste treatment efforts criteria. It is customary to remove hazardous solid wastes via incineration, while waste-water is mostly1 Plant-Wide Waste Management. 1. Synthesis and Multi-Objective Design Aninda Chakraborty

  20. University Awards California State University, Fullerton offers a number of university-wide awards to students each year.

    E-Print Network [OSTI]

    de Lijser, Peter

    University Awards California State University, Fullerton offers a number of university-wide awards are a faculty member, we welcome your nomination of deserving students for whichever award you feel would Association Outstanding Graduate Student Award Amount: $1,000 Established by: This award was established

  1. 480 IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 12, NO. 5, MAY 2000 Coupled Structure for Wide-Band EDFA with Gain

    E-Print Network [OSTI]

    Park, Namkyoo

    480 IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 12, NO. 5, MAY 2000 Coupled Structure for Wide applications due to the maturity of the supporting technologies such as the host material and pump sources-band EDFA's [4], [5], we have suggested a structure that recycles useless backward amplified spontaneous

  2. Preliminary core design studies for the advanced burner reactor over a wide range of conversion ratios.

    SciTech Connect (OSTI)

    Hoffman, E. A.; Yang, W. S.; Hill, R. N.; Nuclear Engineering Division

    2008-05-05T23:59:59.000Z

    A consistent set of designs for 1000 MWt commercial-scale sodium-cooled Advance Burner Reactors (ABR) have been developed for both metal and oxide-fueled cores with conversion ratios from breakeven (CR=1.0) to fertile-free (CR=0.0). These designs are expected to satisfy thermal and irradiation damage limits based on the currently available data. The very low conversion ratio designs require fuel that is beyond the current fuel database, which is anticipated to be qualified by and for the Advanced Burned Test Reactor. Safety and kinetic parameters were calculated, but a safety analysis was not performed. Development of these designs was required to achieve the primary goal of this study, which was to generate representative fuel cycle mass flows for system studies of ABRs as part of the Global Nuclear Energy Partnership (GNEP). There are slight variations with conversion ratio but the basic ABR configuration consists of 144 fuel assemblies and between 9 and 22 primary control assemblies for both the metal and oxide-fueled cores. Preliminary design studies indicated that it is feasible to design the ABR to accommodate a wide range of conversion ratio by employing different assembly designs and including sufficient control assemblies to accommodate the large reactivity swing at low conversion ratios. The assemblies are designed to fit within the same geometry, but the size and number of fuel pins within each assembly are significantly different in order to achieve the target conversion ratio while still satisfying thermal limits. Current irradiation experience would allow for a conversion ratio of somewhat below 0.75. The fuel qualification for the first ABR should expand this experience to allow for much lower conversion ratios and higher bunrups. The current designs were based on assumptions about the performance of high and very high enrichment fuel, which results in significant uncertainty about the details of the designs. However, the basic fuel cycle performance trends such as conversion ratio and mass flow parameters are less sensitive to these parameters and the current results should provide a good basis for static and dynamic system analysis. The conversion ratio is fundamentally a ratio of the macroscopic cross section of U-238 capture to that of TRU fission. Since the microscopic cross sections only change moderately with fuel design and isotopic concentration for the fast reactor, a specific conversion ratio requires a specific enrichment. The approximate average charge enrichment (TRU/HM) is 14%, 21%, 33%, 56%, and 100% for conversion ratios of 1.0, 0.75, 0.50, 0.25, and 0.0 for the metal-fueled cores. The approximate average charge enrichment is 17%, 25%, 38%, 60%, and 100% for conversion ratios of 1.0, 0.75, 0.50, 0.25, and 0.0 for the oxide-fueled core. For the split batch cores, the maximum enrichment will be somewhat higher. For both the metal and oxide-fueled cores, the reactivity feedback coefficients and kinetics parameters seem reasonable. The maximum single control assembly reactivity faults may be too large for the low conversion ratio designs. The average reactivity of the primary control assemblies was increased, which may cause the maximum reactivity of the central control assembly to be excessive. The values of the reactivity coefficients and kinetics parameters show that some values appear to improve significantly at lower conversion ratios while others appear far less favorable. Detailed safety analysis is required to determine if these designs have adequate safety margins or if appropriate design modifications are required. Detailed system analysis data has been generated for both metal and oxide-fueled core designs over the entire range of potential burner reactors. Additional data has been calculated for a few alternative fuel cycles. The systems data has been summarized in this report and the detailed data will be provided to the systems analysis team so that static and dynamic system analyses can be performed.

  3. The Babcock Institute Pamela Ruegg, Dam Rasmussen, and Doug Reinemann at University of Wisconsin The Babcock Institute

    E-Print Network [OSTI]

    Sheridan, Jennifer

    . Further improvements in cow cleanliness can be made through removal of udder hair. It is a good practice. The objective of milking management is to ensure that teatcups are applied to visibly clean, well stimulated teats, milk is rapidly and efficiently harvested and milking units are removed when milking is completed

  4. Biogeochemical redox cycling in hyper alkaline sediment-water systems. Ian Burke, Rob Mortimer and Doug Stewart (Civil Engineering)

    E-Print Network [OSTI]

    Burke, Ian

    kiln contrusted at Harper Hill in Derbyshire by the Buxton Lime Company was biggest of its type and was in operation continuously, 24/7, from 1872 until it was closed in 1944. (The kiln was demolished in 1980 of the kiln, and groundwater in contact with this waste has become saturated in Ca-, Na-, and K- hydroxides

  5. Biogeochemical redox cycling in hyper alkaline sediment-water systems. Ian Burke, Rob Mortimer and Doug Stewart (Civil Engineering)

    E-Print Network [OSTI]

    Burke, Ian

    kiln constructed at Harper Hill in Derbyshire by the Buxton Lime Company was biggest of its type and was in operation continuously, 24/7, from 1872 until it was closed in 1944. (The kiln was demolished in 1980 of the kiln, and groundwater in contact with this waste has become saturated in Ca-, Na-, and K- hydroxides

  6. SELECTED PUBLICATIONS -Doug Smith Smith, D., 2010, Antigorite Peridotite, Metaserpentinite, and other Inclusions within Diatremes on the

    E-Print Network [OSTI]

    Yang, Zong-Liang

    during Low-angle Subduction. Journal of Petrology, v 51, 1355-1379. doi: 10.1093/petrology/egq022 Smith Plateau, Southwestern United States. Journal of Petrology, v 46, 1901-1924. Smith D., Connelly J. N, and implications. In Mantle Petrology: Field Observations and High Pressure Experimentation: A tribute to Francis R

  7. Provost Level Employee Communication Council meeting April 14, 2004 Present: Brian Bader, Doug Moseley, Kathy Soule, Linda Hunt, Michael

    E-Print Network [OSTI]

    Whittle, Mark

    of the biggest sources being permit sales. P&T gets no state or tuition money. Its budget is $11million. About a half of that is parking permits and a third is University transit and the rest split up between and faculty include a presidential committee (which met on April 14); employee councils can name people

  8. Welcome Doug MacIntyre, Director, Office of Petroleum and Biofuels Statistics, U.S. Energy Information

    U.S. Energy Information Administration (EIA) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are nowTotal" (Percent) Type: Sulfur Content4,367,470 4,364,790 4,363,909 4,363,143 4,363,967 4,363,549 1973-2015 Alaska 14,197 14,197Cubic Feet) Gas,UndergroundWorking

  9. The Hubble Wide Field Camera 3 Test of Surfaces in the Outer Solar System: Spectral Variation on Kuiper Belt Objects

    E-Print Network [OSTI]

    Fraser, Wesley C; Glass, Florian

    2015-01-01T23:59:59.000Z

    Here we present additional photometry of targets observed as part of the Hubble Wide Field Camera 3 Test of Surfaces in the Outer Solar System. 12 targets were re-observed with the Wide Field Camera 3 in optical and NIR wavebands designed to compliment those used during the first visit. Additionally, all observations originally presented by Fraser and Brown (2012) were reanalyzed through the same updated photometry pipeline. A reanalysis of the optical and NIR colour distribution reveals a bifurcated optical colour distribution and only two identifiable spectral classes, each of which occupies a broad range of colours and have correlated optical and NIR colours, in agreement with our previous findings. We report the detection of significant spectral variations on 5 targets which cannot be attributed to photometry errors, cosmic rays, point spread function or sensitivity variations, or other image artifacts capable of explaining the magnitude of the variation. The spectrally variable objects are found to have ...

  10. 2DPHOT: A Multi-purpose Environment for the Two-dimensional Analysis of Wide-field Images

    E-Print Network [OSTI]

    F. La Barbera; R. R. de Carvalho; J. L. Kohl-Moreira; R. R. Gal; M. Soares-Santos; M. Capaccioli; R. Santos; N. Sant'Anna

    2008-04-08T23:59:59.000Z

    We describe 2DPHOT, a general purpose analysis environment for source detection and analysis in deep wide-field images. 2DPHOT is an automated tool to obtain both integrated and surface photometry of galaxies in an image, to perform reliable star-galaxy separation with accurate estimates of contamination at faint flux levels, and to estimate completeness of the image catalog. We describe the analysis strategy on which 2DPHOT is based, and provide a detailed description of the different algorithms implemented in the package. This new environment is intended as a dedicated tool to process the wealth of data from wide-field imaging surveys. To this end, the package is complemented by 2DGUI, an environment that allows multiple processing of data using a range of computing architectures.

  11. Extragalactic Transients in the Era of Wide-Field Radio Surveys. I. Detection Rates and Light Curve Characteristics

    E-Print Network [OSTI]

    Metzger, Brian D; Berger, Edo

    2015-01-01T23:59:59.000Z

    The impending era of wide-field radio surveys has the potential to revolutionize our understanding of astrophysical transients. Here we evaluate the prospects of a wide range of planned and hypothetical radio surveys using the properties and volumetric rates of known and hypothetical classes of extragalactic synchrotron radio transients (e.g., on- and off-axis gamma-ray bursts [GRB], supernovae, tidal disruption events [TDE], compact object mergers). Utilizing these sources and physically motivated considerations we assess the allowed phase-space of radio luminosity and peak timescale for extragalactic transients. We also include for the first time effects such as redshift evolution of the rates, K-corrections, and non-Euclidean luminosity distance, which affect the detection rates of the most sensitive surveys. The number of detected events is calculated by means of a Monte Carlo method, using the various survey properties (depth, cadence, area) and realistic detection criteria that include a cut on the mini...

  12. Identification of Signatures of Selection in Bos Taurus Beef and Dairy Cattle Using Genome-wide SNP Genotypes

    E-Print Network [OSTI]

    Choi, Jung Woo

    2010-10-12T23:59:59.000Z

    IDENTIFICATION OF SIGNATURES OF SELECTION IN BOS TAURUS BEEF AND DAIRY CATTLE USING GENOME-WIDE SNP GENOTYPES A Dissertation by JUNG WOO CHOI Submitted to the Office of Graduate Studies of Texas A&M University in partial... Dissertation by JUNG WOO CHOI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Clare A. Gill Committee Members...

  13. Experimental Investigation of Muon-catalyzed dt Fusion in Wide Ranges of D/T Mixture Conditions

    SciTech Connect (OSTI)

    Bom, V.R.; Eijk, C.W.E. van [Delft University of Technology, 2629 JB Delft (Netherlands); Demin, A.M.; Golubkov, A.N.; Grishechkin, S.K.; Klevtsov, V.G.; Kuryakin, A.V.; Musyaev, R.K.; Perevozchikov, V.V.; Vinogradov, Yu.I.; Yukhimchuk, A.A.; Zlatoustovskii, S.V. [Russian Federal Nuclear Center All-Russian Research Institute of Experimental Physics, Sarov, Nizhni Novgorod oblast, 607200 (Russian Federation); Demin, D.L.; Filchenkov, V.V.; Grafov, N.N.; Gritsaj, K.I.; Konin, A.D.; Medved', S.V.; Rudenko, A.I.; Yukhimchuk, S.A. [Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980 (Russian Federation)] [and others

    2005-04-01T23:59:59.000Z

    A vast program of the experimental investigation of muon-catalyzed dt fusion was performed on the Joint Institute for Nuclear Research phasotron. Parameters of the dt cycle were obtained in a wide range of the D/T mixture conditions: temperatures of 20-800 K, densities of 0.2-1.2 of the liquid hydrogen density (LHD), and tritium concentrations of 15-86%. In this paper, the results obtained are summarized.

  14. Wide-band-gap InAlAs solar cell for an alternative multijunction approach Marina S. Leite,1,a

    E-Print Network [OSTI]

    Atwater, Harry

    Wide-band-gap InAlAs solar cell for an alternative multijunction approach Marina S. Leite,1,a Robyn; published online 28 February 2011 We have fabricated an In0.52Al0.48As solar cell lattice-matched to In-free InxAl1-xAs alloyed layers were used to fabricate the single junction solar cell. Photoluminescence

  15. LOW-MASS TERTIARY COMPANIONS TO SPECTROSCOPIC BINARIES. I. COMMON PROPER MOTION SURVEY FOR WIDE COMPANIONS USING 2MASS

    SciTech Connect (OSTI)

    Allen, Peter R. [Department of Physics and Astronomy, P.O. Box 3003, Franklin and Marshall College, Lancaster, PA 17604 (United States); Burgasser, Adam J. [Department of Physics, University of California, San Diego, CA 92093 (United States); Faherty, Jacqueline K. [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10034 (United States); Kirkpatrick, J. Davy, E-mail: peter.allen@fandm.edu [IPAC, California Institute of Technology, Pasadena, CA 91125 (United States)

    2012-08-15T23:59:59.000Z

    We report the first results of a multi-epoch search for wide (separations greater than a few tens of AU), low-mass tertiary companions of a volume-limited sample of 118 known spectroscopic binaries within 30 pc of the Sun, using the Two Micron All Sky Survey Point Source Catalog and follow-up observations with the KPNO and CTIO 4 m telescopes. Note that this sample is not volume complete but volume limited, and, thus, there is incompleteness in our reported companion rates. We are sensitive to common proper motion companions with separations from roughly 200 AU to 10,000 AU ({approx}10'' {yields} {approx} 10'). From 77 sources followed-up to date, we recover 11 previously known tertiaries, 3 previously known candidate tertiaries, of which 2 are spectroscopically confirmed and 1 rejected, and 3 new candidates, of which 2 are confirmed and 1 rejected. This yields an estimated wide tertiary fraction of 19.5{sup +5.2}{sub -3.7}%. This observed fraction is consistent with predictions set out in star formation simulations where the fraction of wide, low-mass companions to spectroscopic binaries is >10%.

  16. DISCOVERY OF TWO VERY WIDE BINARIES WITH ULTRACOOL COMPANIONS AND A NEW BROWN DWARF AT THE L/T TRANSITION

    SciTech Connect (OSTI)

    Muzic, Koraljka; Radigan, Jacqueline; Jayawardhana, Ray [Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4 (Canada); Ivanov, Valentin D.; Boffin, Henri M. J.; Jones, David; Tyndall, Amy [European Southern Observatory, Alonso de Cordova 3107, Casilla 19, Santiago 19001 (Chile); Faherty, Jacqueline K. [Department of Astronomy, University of Chile, Camino El Observatorio 1515, Casilla 36-D, Santiago (Chile); Kurtev, Radostin G.; Borissova, Jura [Departamento de Fisica y Astronomia, Facultad de Ciencias, Universidad de Valparaiso, Av. Gran Bretana 1111, Playa Ancha, Casilla 53, Valparaiso (Chile); Nunez, Alejandro; Cruz, Kelle [Department of Astrophysics, American Museum of Natural History, New York, NY, 10024 (United States); Hainaut, Olivier [European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei Muenchen (Germany); Metchev, Stanimir, E-mail: kmuzic@eso.org [Department of Physics and Astronomy, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY 11794-3800 (United States)

    2012-12-01T23:59:59.000Z

    We present the discovery and spectroscopic follow-up of a nearby late-type L dwarf (2M0614+3950), and two extremely wide very low mass binary systems (2M0525-7425AB and 2M1348-1344AB), resulting from our search for common proper motion pairs containing ultracool components in the Two Micron All Sky Survey and the Wide-field Infrared Survey Explorer catalogs. The near-infrared spectrum of 2M0614+3950 indicates a spectral type L9 {+-} 1 object residing at a distance of 26.0 {+-} 1.8 pc. The optical spectrum of 2M0525-7425A reveals an M3.0 {+-} 0.5 dwarf primary, accompanied by a secondary previously classified as L2. The system has an angular separation of {approx}44'', equivalent to {approx}2000 AU at a distance of 46.0 {+-} 3.0 pc. Using optical and infrared spectra, respectively, we classify the components of 2M1348-1344AB as M4.5 {+-} 0.5 and T5.5 {+-} 1. The angular separation of {approx}68'' is equivalent to {approx}1400 AU at a distance of 20.7 {+-} 1.4 pc. 2M1348-1344AB is one of only six very wide (separation >1000 AU) systems containing late T dwarfs known to date.

  17. Scale Matters: An Action Plan for Realizing Sector-Wide"Zero-Energy" Performance Goals in Commercial Buildings

    SciTech Connect (OSTI)

    Selkowitz, Stephen; Selkowitz, Stephen; Granderson, Jessica; Haves, Philip; Mathew, Paul; Harris, Jeff

    2008-06-16T23:59:59.000Z

    It is widely accepted that if the United States is to reduce greenhouse gas emissions it must aggressively address energy end use in the building sector. While there have been some notable but modest successes with mandatory and voluntary programs, there have also been puzzling failures to achieve expected savings. Collectively, these programs have not yet reached the majority of the building stock, nor have they yet routinely produced very large savings in individual buildings. Several trends that have the potential to change this are noteworthy: (1) the growing market interest in 'green buildings' and 'sustainable design', (2) the major professional societies (e.g. AIA, ASHRAE) have more aggressively adopted significant improvements in energy efficiency as strategic goals, e.g. targeting 'zero energy', carbon-neutral buildings by 2030. While this vision is widely accepted as desirable, unless there are significant changes to the way buildings are routinely designed, delivered and operated, zero energy buildings will remain a niche phenomenon rather than a sector-wide reality. Toward that end, a public/private coalition including the Alliance to Save Energy, LBNL, AIA, ASHRAE, USGBC and the World Business Council for Sustainable Development (WBCSD) are developing an 'action plan' for moving the U.S. commercial building sector towards zero energy performance. It addresses regional action in a national framework; integrated deployment, demonstration and R&D threads; and would focus on measurable, visible performance indicators. This paper outlines this action plan, focusing on the challenge, the key themes, and the strategies and actions leading to substantial reductions in GHG emissions by 2030.

  18. Transient Inverse Calibration of Hanford Site-Wide Groundwater Model to Hanford Operational Impacts - 1943 to 1996

    SciTech Connect (OSTI)

    Cole, Charles R.; Bergeron, Marcel P.; Wurstner, Signe K.; Thorne, Paul D.; Orr, Samuel; Mckinley, Mathew I.

    2001-05-31T23:59:59.000Z

    This report describes a new initiative to strengthen the technical defensibility of predictions made with the Hanford site-wide groundwater flow and transport model. The focus is on characterizing major uncertainties in the current model. PNNL will develop and implement a calibration approach and methodology that can be used to evaluate alternative conceptual models of the Hanford aquifer system. The calibration process will involve a three-dimensional transient inverse calibration of each numerical model to historical observations of hydraulic and water quality impacts to the unconfined aquifer system from Hanford operations since the mid-1940s.

  19. The Nuclear Material Focus Area Roadmapping Process Utilizing Environmental Management Complex-Wide Nuclear Material Disposition Pathways

    SciTech Connect (OSTI)

    Sala, D. R.; Furhman, P.; Smith, J. D.

    2002-02-26T23:59:59.000Z

    This paper describes the process that the Nuclear Materials Focus Area (NMFA) has developed and utilizes in working with individual Department of Energy (DOE) sites to identify, address, and prioritize research and development efforts in the stabilization, disposition, and storage of nuclear materials. By associating site technology needs with nuclear disposition pathways and integrating those with site schedules, the NMFA is developing a complex wide roadmap for nuclear material technology development. This approach will leverage technology needs and opportunities at multiple sites and assist the NMFA in building a defensible research and development program to address the nuclear material technology needs across the complex.

  20. Final Site-Wide Environmental Assessment of the National Renewable Energy Laboratorys South Table Mountain Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport inEnergy June 6-7, 2013 MeetingEA # 1440 FINAL Site-Wide Environmental

  1. Different Virtual Stator Winding Configurations of Open-End Winding Five-Phase PM Machines for Wide Speed Range without Flux Weakening Operation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Different Virtual Stator Winding Configurations of Open-End Winding Five-Phase PM Machines for Wide of double-ended inverter system for wide-speed range of open- winding five phase PM machines. Different virtual winding configurations (star, pentagon, pentacle and bipolar) can be obtained by choosing

  2. 1M. Panahi, S. Skogestad ' Optimal Operation of a CO2 Capturing Plant for a Wide Range of Disturbances' Optimal Operation of a CO2 Capturing

    E-Print Network [OSTI]

    Skogestad, Sigurd

    1M. Panahi, S. Skogestad ' Optimal Operation of a CO2 Capturing Plant for a Wide Range of Disturbances' Optimal Operation of a CO2 Capturing Plant for a Wide Range of Disturbances Mehdi Panahi Sigurd Skogestad 18.10.2011 AIChE Annual Meeting #12;2M. Panahi, S. Skogestad ' Optimal Operation of a CO2

  3. Genome-wide co-occurrence of promoter elements reveals a cis-regulatory cassette of rRNA transcription motifs in S. cerevisiae

    E-Print Network [OSTI]

    Church, George M.

    1 Genome-wide co-occurrence of promoter elements reveals a cis- regulatory cassette of r. We have conducted a genome-wide computational survey to identify cis-regulatory motif pairs that co-occur in a significantly high number of promoters in the S. cerevisiae genome. A pair of novel motifs, mRRPE and PAC, co

  4. REFINED METALLICITY INDICES FOR M DWARFS USING THE SLoWPoKES CATALOG OF WIDE, LOW-MASS BINARIES

    SciTech Connect (OSTI)

    Dhital, Saurav; Stassun, Keivan G.; Bastien, Fabienne A. [Department of Physics and Astronomy, Vanderbilt University, 6301 Stevenson Center, Nashville, TN 37235 (United States); West, Andrew A.; Massey, Angela P. [Department of Astronomy, Boston University, 725 Commonwealth Avenue, Boston, MA 02215 (United States); Bochanski, John J., E-mail: saurav.dhital@vanderbilt.edu [Astronomy and Astrophysics Department, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802 (United States)

    2012-03-15T23:59:59.000Z

    We report the results from spectroscopic observations of 113 ultra-wide, low-mass binary systems, largely composed of M0-M3 dwarfs, from the SLoWPoKES catalog of common proper motion pairs identified in the Sloan Digital Sky Survey. Radial velocities of each binary member were used to confirm that they are comoving and, consequently, to further validate the high fidelity of the SLoWPoKES catalog. Ten stars appear to be spectroscopic binaries based on broad or split spectral features, supporting previous findings that wide binaries are likely to be hierarchical systems. We measured the H{alpha} equivalent width of the stars in our sample and found that components of 81% of the observed pairs have similar H{alpha} levels. The difference in H{alpha} equivalent width among components with similar masses was smaller than the range of H{alpha} variability for individual objects. We confirm that the Lepine et al. {zeta}-index traces iso-metallicity loci for most of our sample of M dwarfs. However, we find a small systematic bias in {zeta}, especially in the early-type M dwarfs. We use our sample to recalibrate the definition of {zeta}. While representing a small change in the definition, the new {zeta} is a significantly better predictor of iso-metallicity for the higher-mass M dwarfs.

  5. The Impact of Wide-Scale Implementation of Net Zero-Energy Homes on the Western Grid

    SciTech Connect (OSTI)

    Dirks, James A.

    2010-08-16T23:59:59.000Z

    Pacific Northwest National Laboratory conducted a study on the impact of wide-scale implementation of net zero-energy homes (ZEHs) in the western grid. Although minimized via utilization of advanced building technologies, ZEHs still consume energy that must be balanced on an annual basis via self-generation of electricity which is commonly assumed to be from rooftop photovoltaics (PV). This results in a ZEH having a significantly different electricity demand profile than a conventional home. Wide-spread implementation of ZEHs will cause absolute demand levels to fall compared to continued use of more conventional facilities; however, the shape of the demand profile will also change significantly. Demand profile changes will lead to changes in the hourly value of electric generation. With significant penetration of ZEHs, it can be expected that ZEHs will face time of day rates or real time pricing that reflect the value of generation and use. This will impact the economics of ZEHs and the optimal design of PV systems for subsequent ZEHs.

  6. Active probing of cloud multiple scattering, optical depth, vertical thickness, and liquid water content using wide-angle imaging LIDAR.

    SciTech Connect (OSTI)

    Love, Steven P.; Davis, A. B. (Anthony B.); Rohde, C. A. (Charles A.); Tellier, L. L. (Larry L.); Ho, Cheng,

    2002-01-01T23:59:59.000Z

    At most optical wavelengths, laser light in a cloud lidar experiment is not absorbed but merely scattered out of the beam, eventually escaping the cloud via multiple scattering. There is much information available in this light scattered far from the input beam, information ignored by traditional 'on-beam' lidar. Monitoring these off-beam returns in a fully space- and time-resolved manner is the essence of our unique instrument, Wide Angle Imaging Lidar (WAIL). In effect, WAIL produces wide-field (60-degree full-angle) 'movies' of the scattering process and records the cloud's radiative Green functions. A direct data product of WAIL is the distribution of photon path lengths resulting from multiple scattering in the cloud. Following insights from diffusion theory, we can use the measured Green functions to infer the physical thickness and optical depth of the cloud layer, and, from there, estimate the volume-averaged liquid water content. WAIL is notable in that it is applicable to optically thick clouds, a regime in which traditional lidar is reduced to ceilometry. Here we present recent WAIL data oti various clouds and discuss the extension of WAIL to full diurnal monitoring by means of an ultra-narrow magneto-optic atomic line filter for daytime measurements.

  7. Iron K{alpha} measurement of LHD plasmas using a wide band and compact x-ray crystal spectrometer

    SciTech Connect (OSTI)

    Sakurai, I.; Tawara, Y.; Matsumoto, C.; Furuzawa, A.; Morita, S.; Goto, M. [EcoTopia Science Institute, Nagoya University, Nagoya 464-8603, Aichi (Japan); National Institute for Fusion Science, Toki 509-5292, Gifu (Japan)

    2006-10-15T23:59:59.000Z

    X-ray spectra of Fe K{alpha} transitions have been obtained on the Large Helical Device (LHD) using a wide band and compact x-ray spectrometer. The spectrometer consists of a Johann-type LiF(220) crystal with a curvature of 430 mm and a back-illuminated charge-coupled device (CCD) detector with a size of 26.6x6.7 mm{sup 2}. A wide energy range of 6.4-7.0 keV can be observed with high brightness and high temporal resolution, which enables us the measurement of K{alpha} transitions from all charge states of Fe ions. An energy resolution of the spectrometer was 10 eV at full width at half maximum. Time-developed K{alpha} spectra after injection of Fe-coated impurity pellet were also measured with a time interval of 10 ms in the full binning mode of CCD in order to analyze the impurity transport at the central column of LHD plasmas. The system can be modified to have better time response up to 1 ms to analyze the ionization and recombination processes after the pellet injection.

  8. Preliminary assessment of the ecological risks to wide-ranging wildlife species on the Oak Ridge Reservation. 1996 update

    SciTech Connect (OSTI)

    Sample, B.E.; Hinzman, R.L.; Jackson, B.L.; Baron, L.

    1996-09-01T23:59:59.000Z

    More than approximately 50 years of operations, storage, and disposal of wastes generated by the three facilities on the Oak Ridge Reservation (ORR) (the Oak Ridge K-25 Site, Oak Ridge National Laboratory, and the Oak Ridge Y-12 Plant) has resulted in a mosaic of uncontaminated property and lands that are contaminated to varying degrees. This contaminated property includes source areas and the terrestrial and aquatic habitats down gradient from these source areas. Although the integrator OUs generally contain considerable habitat for biota, the source OUs provide little or no suitable habitat. Historically, ecological risk assessment at Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) sites has focused on species that may be definitively associated with a contaminated area or source OU. Endpoints considered in source OUs include plants, soil/litter invertebrates and processes, aquatic biota found in on-OU sediments and surface waters, and small herbivorous, omnivorous, and vermivorous (i.e., feeding on ground, litter, or soil invertebrates) wildlife. All of these endpoints have limited spatial distributions or home ranges such that numerous individuals or a distinct population can be expected to reside within the boundaries of the source OU. Most analyses are not adequate for large sites with multiple, spatially separated contaminated areas such as the ORR that provide habitat for wide-ranging wildlife species. This report is a preliminary response to a plan for assessing risks to wide-ranging species.

  9. Improved Energy Conversion Efficiency in Wide-Bandgap Cu(In,Ga)Se2 Solar Cells: Preprint

    SciTech Connect (OSTI)

    Contreras, M.; Mansfield, L.; Egaas, B.; Li, J.; Romero, M.; Noufi, R.; Rudiger-Voigt, E.; Mannstadt, W.

    2011-07-01T23:59:59.000Z

    This report outlines improvements to the energy conversion efficiency in wide bandgap (Eg>1.2 eV) solar cells based on CuIn1-xGaxSe2. Using (a) alkaline containing high temperature glass substrates, (b) elevated substrate temperatures 600?C-650?C and (c) high vacuum evaporation from elemental sources following NREL's three-stage process, we have been able to improve the performance of wider bandgap solar cells with 1.218% for absorber bandgaps ~1.30 eV and efficiencies ~16% for bandgaps up to ~1.45 eV. In comparing J-V parameters in similar materials, we establish gains in the open-circuit voltage and, to a lesser degree, the fill factor value, as the reason for the improved performance. The higher voltages seen in these wide gap materials grown at high substrate temperatures may be due to reduced recombination at the grain boundary of such absorber films. Solar cell results, absorber materials characterization, and experimental details are reported.

  10. the World Wide Web

    Office of Scientific and Technical Information (OSTI)

    W.J. Luckas and K.R. Perkins, Brookhaven National Laboratory, June 1987. 36. H. George, "Control of Heavy Loads at Nuclear Power Plants," U.S. Nuclear Regulatory Commission,...

  11. Wide Bandgap Materials

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

    May 10, 2011 Project ID: APE007 This presentation does not contain any proprietary, confidential, or otherwise restricted information 2011 U.S. DOE Hydrogen and Fuel Cells Program...

  12. Wide Bandgap Materials

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

    June 10, 2010 Project ID: APE007 This presentation does not contain any proprietary, confidential, or otherwise restricted information 2 Managed by UT-Battelle for the U.S....

  13. Wide Bandgap Materials

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

    Materials Madhu Chinthavali Oak Ridge National Laboratory May 15, 2012 Project ID: APE007 This presentation does not contain any proprietary, confidential, or otherwise restricted...

  14. Island Wide Management Corporation

    Office of Legacy Management (LM)

    reading room, please contact me at 301-353-4716. Sincerely, Edward G. DeLaney, Director Division of Facility and Site Decommissioning Projects Office of Nuclear Energy -.- .- ..---...

  15. Wide Blue Sky

    E-Print Network [OSTI]

    Collins, Caroline Imani

    2011-01-01T23:59:59.000Z

    peasy, that's all it takes. Shelving any previous suspicionnow that perhaps she’d been shelving any realistic notion of

  16. Wide Blue Sky

    E-Print Network [OSTI]

    Collins, Caroline Imani

    2011-01-01T23:59:59.000Z

    we restart the rotation. Jimmy P. , Teddy, then Violet. I'mthe ball flew forward. Jimmy's swing made an audible whoosh.Rev. Crawford reiterated. Jimmy P's cheeks puffed as he blew

  17. Wide Bandgap Power Electronics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradley NickellApril 16, 2008 TBD-0075 -In the MatterWhyofOur

  18. the World Wide Web

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, ,Development1U C L E A R Etest and evaluation*

  19. NNSA-Wide

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronic Input Options Gary L. Hirsch SNL 2001a,Summary; i- DNANuclear Security

  20. the World Wide Web

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not FoundInformation DOEInformation SummaryTECHNICAL REPORT,m, iC lovL+ .UJC

  1. the World Wide Web

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not FoundInformation DOEInformation SummaryTECHNICAL REPORT,m, iC lovL+

  2. Island Wide Management Corporation

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling CorpNewCF INDUSTRIES,L? .-I I ,Is II:c*1r'*9

  3. Geothermal Technologies Program Annual Peer Review Presentation...

    Energy Savers [EERE]

    Technologies Program Annual Peer Review Presentation By Doug Hollett Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett 2012 Peer Review presentation...

  4. Mapping the footsteps of the green anole: A template for publishing ecological data on the World Wide Web

    SciTech Connect (OSTI)

    Carnes, E.T. [Univ. of Tennessee, Knoxville, TN (United States); Truett, D.F. [Univ. of Georgia, Athens, GA (United States); Truett, L.F. [Oak Ridge National Lab., TN (United States)

    1996-10-01T23:59:59.000Z

    In the handful of years since the World Wide Web (WWW or Web) came into being, Web sites have developed at an astonishing rate. With the influx of Web pages comes a disparity of site types, including personal homepages, commercial sales sites, and educational data. The variety of sites and the deluge of information contained on the Web exemplify the individual nature of the WWW. Whereas some people argue that it is this eclecticism which gives the Web its charm, we propose that sites which are repositories of technical data would benefit from standardization. This paper proffers a methodology for publishing ecological research on the Web. The template we describe uses capabilities of HTML (the HyperText Markup Language) to enhance the value of the traditional scientific paper.

  5. Resolving three-dimensional shape of sub-50?nm wide lines with nanometer-scale sensitivity using conventional optical microscopes

    SciTech Connect (OSTI)

    Attota, Ravikiran, E-mail: Ravikiran.attota@nist.gov; Dixson, Ronald G. [Semiconductor and Dimensional Metrology Division, NIST, Gaithersburg, Maryland 20899 (United States)

    2014-07-28T23:59:59.000Z

    We experimentally demonstrate that the three-dimensional (3-D) shape variations of nanometer-scale objects can be resolved and measured with sub-nanometer scale sensitivity using conventional optical microscopes by analyzing 4-D optical data using the through-focus scanning optical microscopy (TSOM) method. These initial results show that TSOM-determined cross-sectional (3-D) shape differences of 30?nm–40?nm wide lines agree well with critical-dimension atomic force microscope measurements. The TSOM method showed a linewidth uncertainty of 1.22?nm (k?=?2). Complex optical simulations are not needed for analysis using the TSOM method, making the process simple, economical, fast, and ideally suited for high volume nanomanufacturing process monitoring.

  6. Association Genetics of Populus trichocarpa or Resequencing in Populus: Towards Genome Wide Association Genetics (2011 JGI User Meeting)

    SciTech Connect (OSTI)

    Tuskan, Gerry

    2011-03-23T23:59:59.000Z

    The U.S. Department of Energy Joint Genome Institute (JGI) invited scientists interested in the application of genomics to bioenergy and environmental issues, as well as all current and prospective users and collaborators, to attend the annual DOE JGI Genomics of Energy & Environment Meeting held March 22-24, 2011 in Walnut Creek, Calif. The emphasis of this meeting was on the genomics of renewable energy strategies, carbon cycling, environmental gene discovery, and engineering of fuel-producing organisms. The meeting features presentations by leading scientists advancing these topics. Gerry Tuskan of Oak Ridge National Laboratory on "Resequencing in Populus: Towards Genome Wide Association Genetics" at the 6th annual Genomics of Energy & Environment Meeting on March 23, 2011

  7. Electrocaloric properties of ferroelectric-paraelectric superlattices controlled by the thickness of paraelectric layer in a wide temperature range

    SciTech Connect (OSTI)

    Ma, D. C.; Lin, S. P. [Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Guangzhou 510275 (China); Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275 (China); Chen, W. J.; Zheng, Yue, E-mail: zhengy35@mail.sysu.edu.cn; Xiong, W. M. [State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275 (China); Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275 (China); Wang, Biao, E-mail: wangbiao@mail.sysu.edu.cn [State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275 (China)

    2014-10-15T23:59:59.000Z

    As functions of the paraelectric layer thickness, misfit strain and temperature, the electrocaloric properties of ferroelectric-paraelectric superlattices are investigated using a time-dependent Ginzburg-Landau thermodynamic model. Ferroelectric phase transition driven by the relative thickness of the superlattice is found to dramatically impact the electrocaloric response. Near the phase transition temperature, the magnitude of the electrocaloric effect is maximized and shifted to lower temperatures by increasing the relative thickness of paraelectric layer. Theoretical calculations also imply that the electrocaloric effect of the superlattices depends not only on the relative thickness of paraelectric layer but also on misfit strain. Furthermore, control of the relative thickness of paraelectric layer and the misfit strain can change availably both the magnitude and the temperature sensitivity of the electrocaloric effect, which suggests that ferroelectric-paraelectric superlattices may be promising candidates for use in cooling devices in a wide temperature range.

  8. X-ray Surveys and Wide-Field Optical/Near-Infrared Imaging with the Joint Dark Energy Mission

    E-Print Network [OSTI]

    W. N. Brandt

    2004-07-22T23:59:59.000Z

    I briefly describe a few important scientific issues that could be addressed effectively via the combination of data from JDEM and X-ray missions. The topics covered are largely focused on active galactic nuclei (AGN) and include (1) the selection of AGN via X-ray emission and optical variability, (2) nuclear outbursts in galaxies due to transient fueling of their supermassive black holes, (3) moderate-luminosity AGN at high redshift (z > 4) found via application of "dropout" techniques to X-ray sources, and (4) the host-galaxy morphologies of X-ray selected AGN. I also describe the substantial challenges to obtaining wide-field X-ray data with sufficient sensitivity to complement JDEM properly.

  9. Association Genetics of Populus trichocarpa or Resequencing in Populus: Towards Genome Wide Association Genetics (2011 JGI User Meeting)

    ScienceCinema (OSTI)

    Tuskan, Gerry

    2011-06-03T23:59:59.000Z

    The U.S. Department of Energy Joint Genome Institute (JGI) invited scientists interested in the application of genomics to bioenergy and environmental issues, as well as all current and prospective users and collaborators, to attend the annual DOE JGI Genomics of Energy & Environment Meeting held March 22-24, 2011 in Walnut Creek, Calif. The emphasis of this meeting was on the genomics of renewable energy strategies, carbon cycling, environmental gene discovery, and engineering of fuel-producing organisms. The meeting features presentations by leading scientists advancing these topics. Gerry Tuskan of Oak Ridge National Laboratory on "Resequencing in Populus: Towards Genome Wide Association Genetics" at the 6th annual Genomics of Energy & Environment Meeting on March 23, 2011

  10. Accurate small and wide angle x-ray scattering profiles from atomic models of proteins and nucleic acids

    SciTech Connect (OSTI)

    Nguyen, Hung T. [BioMaPS Institute for Quantitative Biology, Rutgers University, Piscataway, New Jersey 08854 (United States); Pabit, Suzette A.; Meisburger, Steve P.; Pollack, Lois [School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853 (United States); Case, David A., E-mail: case@biomaps.rutgers.edu [BioMaPS Institute for Quantitative Biology, Rutgers University, Piscataway, New Jersey 08854 (United States); Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854 (United States)

    2014-12-14T23:59:59.000Z

    A new method is introduced to compute X-ray solution scattering profiles from atomic models of macromolecules. The three-dimensional version of the Reference Interaction Site Model (RISM) from liquid-state statistical mechanics is employed to compute the solvent distribution around the solute, including both water and ions. X-ray scattering profiles are computed from this distribution together with the solute geometry. We describe an efficient procedure for performing this calculation employing a Lebedev grid for the angular averaging. The intensity profiles (which involve no adjustable parameters) match experiment and molecular dynamics simulations up to wide angle for two proteins (lysozyme and myoglobin) in water, as well as the small-angle profiles for a dozen biomolecules taken from the BioIsis.net database. The RISM model is especially well-suited for studies of nucleic acids in salt solution. Use of fiber-diffraction models for the structure of duplex DNA in solution yields close agreement with the observed scattering profiles in both the small and wide angle scattering (SAXS and WAXS) regimes. In addition, computed profiles of anomalous SAXS signals (for Rb{sup +} and Sr{sup 2+}) emphasize the ionic contribution to scattering and are in reasonable agreement with experiment. In cases where an absolute calibration of the experimental data at q = 0 is available, one can extract a count of the excess number of waters and ions; computed values depend on the closure that is assumed in the solution of the Ornstein–Zernike equations, with results from the Kovalenko–Hirata closure being closest to experiment for the cases studied here.

  11. Plant Wide Assessment of Energy Usage Utilizing SitEModelling as a Tool for Optimizing Energy Consumption

    SciTech Connect (OSTI)

    Ralf Janowsky, Ph.D.; Tracey Mole, Ph.D.

    2007-12-31T23:59:59.000Z

    The Evonik Degussa Corporation is the global market leader in the specialty chemicals industry. Innovative products and system solutions make an indispensable contribution to our customers' success. We refer to this as "creating essentials". In fiscal 2004, Degussa's 45,000 employees worldwide generated sales of 11.2 billion euros and operating profits (EBIT) of 965 million euros. Evonik Degussa Corporation has performed a plant wide energy usage assessment at the Mapleton, Illinois facility, which consumed 1,182,330 MMBTU in 2003. The purpose of this study was to identify opportunities for improvement regarding the plant’s utility requirements specific to their operation. The production is based mainly on natural gas usage for steam, process heating and hydrogen production. The current high price for natural gas in the US is not very competitive compared to other countries. Therefore, all efforts must be taken to minimize the utility consumption in order to maximize market position and minimize fixed cost increases due to the rising costs of energy. The main objective of this plant wide assessment was to use a methodology called Site Energy Modelling (SitE Modelling) to identify areas of potential improvement for energy savings, either in implementing a single process change or in changing the way different processes interact with each other. The overall goal was to achieve energy savings of more than 10% compared to the 2003 energy figures of the Mapleton site. The final savings breakdown is provided below: - 4.1% savings for steam generation and delivery These savings were accomplished through better control schemes, more constant and optimized loading of the boilers and increased boiler efficiency through an advanced control schemes. - 1.6% savings for plant chemical processing These saving were accomplished through optimized processing heating efficiency and batch recipes, as well as an optimized production schedule to help equalize the boiler load (e.g. steam consumption).

  12. Chromosome-wide mapping of DNA methylation patterns in normal and malignant prostate cells reveals pervasive methylation of gene-associated and conserved intergenic sequences

    E-Print Network [OSTI]

    Yegnasubramanian, Srinivasan; Wu, Zhijin; Haffner, Michael C; Esopi, David; Aryee, Martin J; Badrinath, Raghav; He, Tony L; Morgan, James D; Carvalho, Benilton S; Zheng, Qizhi; De Marzo, Angelo M; Irizarry, Rafael A; Nelson, William G

    2011-06-13T23:59:59.000Z

    G island [13-15], chromosome-wide [15], or genome-wide [16] til- ing microarrays or to analyze by next generation sequen- cing [17,18]. Here, we describe the use of an MBD-chip approach (Figure 1A) to compare the chromosome-wide DNA methylation patterns... identified as differentially methylated in the LNCaP cells compared to the PrEC cells. We could then compare the distribution of CpG dinucleotide content and number of regions overlapping CpG islands in these simulated data sets with these parameters in our...

  13. University-Wide Requirements for the Ph.D. Dissertation Dissertations must comply with the specifications set by ProQuest/UMI, by the Library, by the

    E-Print Network [OSTI]

    He, Chuan

    University-Wide Requirements for the Ph.D. Dissertation Dissertations must comply. Dissertation Requirements Doctoral dissertations are original contributions to scholarship. As a condition Dissertation Publishing. The public sharing of original dissertation research is a principle to which

  14. School-Wide Positive Behavior Support Implementation as it Relates to Referral Reduction among Students of Color in an In-school Suspension Program: Perceptions of Key Stakeholders

    E-Print Network [OSTI]

    Long, Robert

    2012-07-16T23:59:59.000Z

    The purpose of this qualitative study was to examine a problem of practice present in an actual school district. The study examined School-Wide Positive Behavior Support Implementation as it relates to the recidivism rates of students of color...

  15. Design and evaluation of a wide bandwidth logarithmic-ratio beam position monitor processor for the Proton Storage Ring at the Los Alamos Meson Physics Facility

    E-Print Network [OSTI]

    Carter, Hamilton Blalock

    1994-01-01T23:59:59.000Z

    The Proton Storage Ring (PSR) is a facility used for high intensity neutron studies at the Los Alamos Meson Physics Facility(LAWF), located at the Los Alamos National Laboratories, Los Alamos, New Mexico. A wide bandwidth beam position processor...

  16. Water resources: sustainable water supply management and basin wide modelling Internationally it has been recognized that the most important challenge to ensuring sustainable

    E-Print Network [OSTI]

    Barthelat, Francois

    Water resources: sustainable water supply management and basin wide modelling Internationally it has been recognized that the most important challenge to ensuring sustainable water use is implementing integrated water resources management (IWRM). It provides the best framework for balancing

  17. 8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource or risks? 13-16 May 2008

    E-Print Network [OSTI]

    Boyer, Edmond

    support systems; sustainable development; developing countries. INTRODUCTION Urban water provision poses prevention, complicate the urban water system's environment. In this context, facing the challenges8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource

  18. Use of Genome-Wide Expression Data to Mine the "Gray Zone" of GWA Studies Leads to Novel Candidate Obesity Genes

    E-Print Network [OSTI]

    Peltonen, Leena

    To get beyond the “low-hanging fruits” so far identified by genome-wide association (GWA) studies, new methods must be developed in order to discover the numerous remaining genes that estimates of heritability indicate ...

  19. The Woodcock-Johnson Tests of Achievement and the Wide Range Achievement Test: convergent and discriminant validity for blacks and whites

    E-Print Network [OSTI]

    Jenson, Glenn Martin

    1983-01-01T23:59:59.000Z

    THE WOODCOCK-JOHNSON TESTS OF ACHIEVEMENT AND THE WIDE RANGE ACHIEVEMENT TEST: CONVERGENT AND DISCRIMINANT VALIDITY FOR BLACKS AND WHITES A Thesis by GLENN MARTIN JENSON Submitted to the Graduate College of Texas A&M University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1983 Major Subject: Educational Psychology THE WOODCOCK-JOHNSON TESTS OF ACHIEVEMENT AND THE WIDE RANGE ACHIEVEMENT TEST: CONVERGENT AND DISCRIMINANT VALIDITY FOR BLACKS...

  20. Design and 3D simulation of a two-cavity wide-gap relativistic klystron amplifier with high power injection

    SciTech Connect (OSTI)

    Bai Xianchen; Yang Jianhua; Zhang Jiande [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

    2012-08-15T23:59:59.000Z

    By using an electromagnetic particle-in-cell (PIC) code, an S-band two-cavity wide-gap klystron amplifier (WKA) loaded with washers/rods structure is designed and investigated for high power injection application. Influences of the washers/rods structure on the high frequency characteristics and the basic operation of the amplifier are presented. Generally, the rod structure has great impacts on the space-charge potential depression and the resonant frequency of the cavities. Nevertheless, if only the resonant frequency is tuned to the desired operation frequency, effects of the rod size on the basic operation of the amplifier are expected to be very weak. The 3-dimension (3-D) PIC simulation results show an output power of 0.98 GW corresponding to an efficiency of 33% for the WKA, with a 594 keV, 5 kA electron beam guided by an external magnetic field of 1.5 Tesla. Moreover, if a conductive plane is placed near the output gap, such as the electron collector, the beam potential energy can be further released, and the RF power can be increased to about 1.07 GW with the conversion efficiency of about 36%.

  1. An Exploration of Impacts of Wide-Scale Implementation of Net Zero-Energy Homes on the Western Grid

    SciTech Connect (OSTI)

    Dirks, James A.

    2010-07-01T23:59:59.000Z

    Pacific Northwest National Laboratory conducted a study on the impact of wide-scale implementation of net zero-energy homes (ZEHs) in the western grid. Although minimized via utilization of advanced building technologies, ZEHs still consume energy that must be balanced on an annual basis via self-generation of electricity, which is commonly assumed to be from rooftop photovoltaics (PV). This results in a ZEH having a significantly different electricity demand profile than a conventional home. Widespread implementation of ZEHs will cause absolute demand levels to fall compared to continued use of more conventional facilities; however, the shape of the demand profile will also change significantly. Demand profile changes will lead to changes in the hourly value of electric generation. With significant penetration of ZEHs, it can be expected that ZEHs will face time-of-day rates or real-time pricing that reflect the value of generation and use. This will impact the economics of ZEHs and the optimal design of PV systems for subsequent ZEHs.

  2. Genome-Wide Identification and 3D Modeling of Proteins involved in DNA Damage Recognition and Repair (Final Report)

    SciTech Connect (OSTI)

    Ruben A. Abagyan, PhD

    2004-04-15T23:59:59.000Z

    OAK-B135 DNA Damage Recognition and Repair (DDR and R) proteins play a critical role in cellular responses to low-dose radiation and are associated with cancer. the authors have performed a systematic, genome-wide computational analysis of genomic data for human genes involved in the DDR and R process. The significant achievements of this project include: (1) Construction of the computational pipeline for searching DDR and R genes, building and validation of 3D models of proteins involved in DDR and R; (2) Functional and structural annotation of the 3D models and generation of comprehensive lists of suggested knock-out mutations; (3) Important improvement of macromolecular docking technology and its application to predict the DNA-Protein complex conformation; (4) Development of a new algorithm for improved analysis of high-density oligonucleotide arrays for gene expression profiling; (5) Construction and maintenance of the DNA Damage Recognition and Repair Database; and (6) Producing 14 research papers (10 published and 4 in preparation).

  3. THE EVOLUTION OF CIRCUMPLANETARY DISKS AROUND PLANETS IN WIDE ORBITS: IMPLICATIONS FOR FORMATION THEORY, OBSERVATIONS, AND MOON SYSTEMS

    SciTech Connect (OSTI)

    Shabram, Megan; Boley, Aaron C. [Department of Astronomy, University of Florida, 211 Bryant Space Center, Gainesville, FL 32611 (United States)] [Department of Astronomy, University of Florida, 211 Bryant Space Center, Gainesville, FL 32611 (United States)

    2013-04-10T23:59:59.000Z

    Using radiation hydrodynamics simulations, we explore the evolution of circumplanetary disks around wide-orbit proto-gas giants. At large distances from the star ({approx}100 AU), gravitational instability followed by disk fragmentation can form low-mass substellar companions (massive gas giants and/or brown dwarfs) that are likely to host large disks. We examine the initial evolution of these subdisks and their role in regulating the growth of their substellar companions, as well as explore consequences of their interactions with circumstellar material. We find that subdisks that form in the context of GIs evolve quickly from a very massive state. Long-term accretion rates from the subdisk onto the proto-gas giant reach {approx}0.3 Jupiter masses kyr{sup -1}. We also find consistency with previous simulations, demonstrating that subdisks are truncated at {approx}1/3 of the companion's Hill radius and are thick, with (h/r) of {approx}> 0.2. The thickness of subdisks draws to question the use of thin-disk approximations for understanding the behavior of subdisks, and the morphology of subdisks has implications for the formation and extent of satellite systems. These subdisks create heating events in otherwise cold regions of the circumstellar disk and serve as planet formation beacons that can be detected by instruments such as ALMA.

  4. The XMM-Newton Wide Angle Survey (XWAS): the X-ray spectrum of type-1 AGN

    E-Print Network [OSTI]

    Mateos, S; Page, M J; Watson, M G; Corral, A; Tedds, J A; Ebrero, J; Krumpe, M; Schwope, A; Ceballos, M T

    2009-01-01T23:59:59.000Z

    We discuss the broad band X-ray properties of one of the largest samples of X-ray selected type-1 AGN to date (487 objects in total), drawn from the XMM-Newton Wide Angle Survey. The objects cover 2-10 keV luminosities from ~10^{42}-10^{45} erg s^{-1} and are detected up to redshift ~4. We constrain the overall properties of the broad band continuum, soft excess and X-ray absorption, along with their dependence on the X-ray luminosity and redshift and we discuss the implications for models of AGN emission. We constrained the mean spectral index of the broad band X-ray continuum to =1.96+-0.02 with intrinsic dispersion sigma=0.27_{-0.02}^{+0.01}. The continuum becomes harder at faint fluxes and at higher redshifts and luminosities. The dependence of Gamma with flux is likely due to undetected absorption rather than to spectral variation. We found a strong dependence of the detection efficiency of objects on the spectral shape which can have a strong impact on the measured mean continuum shapes of sources at di...

  5. Influence of grain boundary modification on limited performance of wide bandgap Cu(In,Ga)Se{sub 2} solar cells

    SciTech Connect (OSTI)

    Raghuwanshi, M., E-mail: mohit.raghuwanshi@etu.univ-rouen.fr; Cadel, E.; Pareige, P.; Duguay, S. [Groupe de Physique des Materiaux (GPM), UMR 6634 CNRS, Université et INSA de Rouen, Avenue de l'Universite BP 12, 76801 Saint Etienne du Rouvray (France); Couzinie-Devy, F.; Arzel, L.; Barreau, N. [Institut des Materiaux Jean Rouxel (IMN), UMR 6502 CNRS, Université de Nantes, 2 rue de la Houssiniere BP 32229, 44322 Nantes cedex 3 (France)

    2014-07-07T23:59:59.000Z

    The reason why so-called wide-bandgap CuIn{sub 1?x}Ga{sub x}Se{sub 2} (CIGSe with x?>?0.4) based solar cells show hindered performance compared with theoretical expectations is still a matter of debate. In the present Letter, atom probe tomography studies of CuIn{sub 1?x}Ga{sub x}Se{sub 2} polycrystalline thin films with x varying from 0 to 1 are reported. These investigations confirm that the grain boundaries (GBs) of low gallium containing (x??0.8) are Cu-enriched compared with GI. For intermediate gallium contents (0.4?

  6. Supplement Analysis for the Site-Wide Environmental Impact Statement for Continued Operations of Los Alamos National Laboratory

    SciTech Connect (OSTI)

    N /A

    2000-09-20T23:59:59.000Z

    This Supplement Analysis (SA) has been prepared to determine if the ''Site-Wide Environmental Impact Statement for Continued Operations of Los Alamos National Laboratory'' (SWEIS) adequately addresses the environmental effects of a proposal for modifying current methods utilized to receive and manage certain offsite unwanted radioactive sealed sources at Los Alamos National Laboratory or if additional documentation under the National Environmental Policy Act (NEPA) is needed. The need for a SA to an existing environmental impact statement (EIS) is initiated by subsequent changes in the basis upon which the original EIS was prepared and the need to evaluate whether or not the EIS is adequate in light of those changes. It is submitted according to the requirements for determining the need for supplemental environmental impact statements (10 CFR 1021.314) in the Department of Energy's regulation for implementing NEPA. This SA specifically compares key impact assessment parameters of a program evaluated in the SWEIS with those of a proposal that would change the approach of this management. It also provides an explanation of any differences between the proposed action and activities described in earlier NEPA analysis.

  7. Addendum to the East Tennessee Technology Park Site-Wide Residual Contamination Remedial Investigation Work Plan Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    SAIC

    2011-04-01T23:59:59.000Z

    The East Tennessee Technology Park Site-Wide Residual Contamination Remedial Investigation Work Plan (DOE 2004) describes the planned fieldwork to support the remedial investigation (RI) for residual contamination at the East Tennessee Technology Park (ETTP) not addressed in previous Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) decisions. This Addendum describes activities that will be conducted to gather additional information in Zone 1 of the ETTP for groundwater, surface water, and sediments. This Addendum has been developed from agreements reached in meetings held on June 23, 2010, August 25, 2010, October 13, 2010, November 13, 2010, December 1, 2010, and January 13, 2011, with representatives of the U. S. Department of Energy (DOE), U. S. Environmental Protection Agency (EPA), and Tennessee Department of Environment and Conservation (TDEC). Based on historical to recent groundwater data for ETTP and the previously completed Sitewide Remedial Investigation for the ETTP (DOE 2007a), the following six areas of concern have been identified that exhibit groundwater contamination downgradient of these areas above state of Tennessee and EPA drinking water maximum contaminant levels (MCLs): (1) K-720 Fly Ash Pile, (2) K-770 Scrap Yard, (3) Duct Island, (4) K-1085 Firehouse Burn/J.A. Jones Maintenance Area, (5) Contractor's Spoil Area (CSA), and (6) Former K-1070-A Burial Ground. The paper presents a brief summary of the history of the areas, the general conceptual models for the observed groundwater contamination, and the data gaps identified.

  8. Wide-open, high-resolution microwave/millimeter-wave Doppler frequency shift estimation using photonics technology

    E-Print Network [OSTI]

    Zou, Xihua; Lu, Bing; Pan, Wei; Yan, Lianshan; Shao, Liyang

    2014-01-01T23:59:59.000Z

    Today, wide-open, high-resolution Doppler frequency shift (DFS) estimation is essential for radar, microwave/millimeter-wave, and communication systems. Using photonics technology, an effective approach is proposed and experimentally demonstrated, providing a high-resolution and frequency-independent solution. In the approach consisting of two cascaded opto-electronic modulators, DFS between the transmitted microwave/ millimeter-wave signal and the received echo signal is mapped into a doubled spacing between two target optical sidebands. Subsequently, the DFS is then estimated through the spectrum analysis of a generated low-frequency electrical signal, with an improved resolution by a factor of 2. In experiments, DFSs from -90 to 90 KHz are successfully estimated for microwave/millimeter-wave signals at 10, 15, and 30 GHz, where estimation errors keep lower than +/- 5e-10 Hz. For radial velocity measurement, these results reveal a range from 0 to 900 m/s (0 to 450 m/s) and a resolution of 1e-11 m/s (5e-12 m...

  9. DEVELOPMENT OF SUPERIOR SORBENTS FOR SEPARATION OF CO2 FROM FLUE GAS AT A WIDE TEMPERATURE RANGE DURING COAL COMBUSTION

    SciTech Connect (OSTI)

    Panagiotis G. Smirniotis

    2005-01-30T23:59:59.000Z

    For this part of the project the studies focused on the development of novel sorbents for reducing the carbon dioxide emissions at high temperatures. Our studies focused on cesium doped CaO sorbents with respect to other major flue gas compounds in a wide temperature range. The thermo-gravimetric analysis of sorbents with loadings of CaO doped on 20 wt% cesium demonstrated high CO{sub 2} sorption uptakes (up to 66 wt% CO{sub 2}/sorbent). It is remarkable to note that zero adsorption affinity for N{sub 2}, O{sub 2}, H{sub 2}O and NO at temperatures as high as 600 C was observed. For water vapor and nitrogen oxide we observed a positive effect for CO{sub 2} adsorption. In the presence of steam, the CO{sub 2} adsorption increased to the highest adsorption capacity of 77 wt% CO{sub 2}/sorbent. In the presence of nitrogen oxide, the final CO{sub 2} uptake remained same, but the rate of adsorption was higher at the initial stages (10%) than the case where no nitrogen oxide was fed.

  10. Radiation response analysis of wide-gap p-AlInGaP for superhigh-efficiency space photovoltaics

    SciTech Connect (OSTI)

    Khan, Aurangzeb; Marupaduga, S.; Anandakrishnan, S.S.; Alam, M.; Ekins-Daukes, N.J.; Lee, H.S.; Sasaki, T.; Yamaguchi, M.; Takamoto, T.; Agui, T.; Kamimura, K.; Kaneiwa, M.; Imazumi, M. [Department of Electrical and Computer Engineering, University of South Alabama, Mobile, Alabama 36688 (United States); Toyota Technological Institute, Nagoya (Japan); Sharp Corporation, Nara (Japan); JAXA, Tsukuba (Japan)

    2004-11-29T23:59:59.000Z

    We present here the direct observation of the majority and minority carrier defects generation from wide-band-gap (2.04 eV) and thick (2 {mu}m) p-AlInGaP diodes and solar cells structures before and after 1 MeV electron irradiation by deep level transient spectroscopy (DLTS). One dominant hole-emitting trap H1 (E{sub V}+0.37{+-}0.05 eV) and two electron-emitting traps, E1 (E{sub C}-0.22{+-}0.04 eV) and E3 (E{sub C}-0.78{+-}0.05 eV) have been observed in the temperature range, which we could scan by DLTS. Detailed analysis of the minority carrier injection annealing experiment reveals that the H1 center has shown the same annealing characteristics, which has been previously observed in all phosphide-based materials such as InP, InGaP, and InGaAsP. The annealing property of the radiation-induced defects in p-AlInGaP reveals that multijunction solar cells and other optoelectronic devices such as light-emitting diodes based on this material could be considerably better to Si and GaAs in a radiation environment.

  11. EISily looking for distant clusters of galaxies - - a new algorithm and its application to the EIS-wide data

    E-Print Network [OSTI]

    C. Lobo; A. Iovino; D. Lazzati; G. Chincarini

    2000-06-29T23:59:59.000Z

    We present a new algorithm to search for distant clusters of galaxies on catalogues deriving from imaging data, as those of the ESO Imaging Survey. Our algorithm is a matched filter one, similar to that adopted by Postman et al. (1996), aiming at identifying cluster candidates by using positional and photometric data simultaneously. The main novelty of our approach is that spatial and luminosity filter are run separately on the catalogue and no assumption is made on the typical size nor on the typical M* for clusters, as these parameters intervene in our algorithm as typical angular scale (sigma) and typical apparent magnitude m*. Moreover we estimate the background locally for each candidate, allowing us to overcome the hazards of inhomogeneous datasets. As a consequence our algorithm has a lower contamination rate - without loss of completeness - in comparison to other techniques, as tested through extensive simulations. We provide catalogues of galaxy cluster candidates as the result of applying our algorithm to the I-band data of the EIS-wide patches A and B.

  12. Examining System-Wide Impacts of Solar PV Control Systems with a Power Hardware-in-the-Loop Platform

    SciTech Connect (OSTI)

    Williams, Tess L.; Fuller, Jason C.; Schneider, Kevin P.; Palmintier, Bryan; Lundstrom, Blake; Chakraborty, Sudipta

    2014-10-11T23:59:59.000Z

    High penetration levels of distributed solar PV power generation can lead to adverse power quality impacts such as excessive voltage rise, voltage flicker, and reactive power values that result in unacceptable voltage levels. Advanced inverter control schemes have been proposed that have the potential to mitigate many power quality concerns. However, closed-loop control may lead to unintended behavior in deployed systems as complex interactions can occur between numerous operating devices. In order to enable the study of the performance of advanced control schemes in a detailed distribution system environment, a Hardware-in-the-Loop (HIL) platform has been developed. In the HIL system, GridLAB-D, a distribution system simulation tool, runs in real-time mode at the Pacific Northwest National Laboratory (PNNL) and supplies power system parameters at a point of common coupling to hardware located at the National Renewable Energy Laboratory (NREL). Hardware inverters interact with grid and PV simulators emulating an operational distribution system and power output from the inverters is measured and sent to PNNL to update the real-time distribution system simulation. The platform is described and initial test cases are presented. The platform is used to study the system-wide impacts and the interactions of controls applied to inverters that are integrated into a simulation of the IEEE 8500-node test feeder, with inverters in either constant power factor control or active volt/VAR control. We demonstrate that this HIL platform is well-suited to the study of advanced inverter controls and their impacts on the power quality of a distribution feeder. Additionally, the results from HIL are used to validate GridLAB-D simulations of advanced inverter controls. ?

  13. Researching Complex Heat, Air and Moisture Interactions for a Wide-Range of Building Envelope Systems and Environmental Loads

    SciTech Connect (OSTI)

    Karagiozis, A.N.

    2007-05-15T23:59:59.000Z

    This document serves as the final report documenting work completed by Oak Ridge National Laboratory (ORNL) and the Fraunhofer Institute in Building Physics (Holzkirchen, Germany) under an international CRADA No. 0575 with Fraunhofer Institute of Bauphysics of the Federal Republic of Germany for Researching Complex Heat, Air and Moisture Interactions for a Wide Range of Building Envelope Systems and Environmental Loads. This CRADA required a multi-faceted approach to building envelope research that included a moisture engineering approach by blending extensive material property analysis, laboratory system and sub-system thermal and moisture testing, and advanced moisture analysis prediction performance. The Participant's Institute for Building physics (IBP) and the Contractor's Buildings Technology Center (BTC) identified potential research projects and activities capable of accelerating and advancing the development of innovative, low energy and durable building envelope systems in diverse climates. This allowed a major leverage of the limited resources available to ORNL to execute the required Department of Energy (DOE) directives in the area of moisture engineering. A joint working group (ORNL and Fraunhofer IBP) was assembled and a research plan was executed from May 2000 to May 2005. A number of key deliverables were produced such as adoption of North American loading into the WUFI-software. in addition the ORNL Weather File Analyzer was created and this has been used to address environmental loading for a variety of US climates. At least 4 papers have been co-written with the CRADA partners, and a chapter in the ASTM Manual 40 on Moisture Analysis and Condensation Control. All deliverables and goals were met and exceeded making this collaboration a success to all parties involves.

  14. Absolute kinematics of radio source components in the complete S5 polar cap sample. III. First wide-field high-precision astrometry at 15.4 GHz

    E-Print Network [OSTI]

    I. Marti-Vidal; J. M. Marcaide; J. C. Guirado; M. A. Perez-Torres; E. Ros

    2007-11-13T23:59:59.000Z

    We report on the first wide-field, high-precision astrometric analysis of the 13 extragalactic radio sources of the complete S5 polar cap sample at 15.4 GHz. We describe new algorithms developed to enable the use of differenced phase delays in wide-field astrometric observations and discuss the impact of using differenced phase delays on the precision of the wide-field astrometric analysis. From this global fit, we obtained estimates of the relative source positions with precisions ranging from 14 to 200 $\\mu$as at 15.4 GHz, depending on the angular separation of the sources (from $\\sim$1.6 to $\\sim$20.8 degrees). These precisions are $\\sim$10 times higher than the achievable precisions using the phase-reference mapping technique.

  15. OBSERVATIONS OF SOLAR ENERGETIC PARTICLES FROM {sup 3}He-RICH EVENTS OVER A WIDE RANGE OF HELIOGRAPHIC LONGITUDE

    SciTech Connect (OSTI)

    Wiedenbeck, M. E. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)] [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Mason, G. M.; Haggerty, D. K [Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723 (United States)] [Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723 (United States); Cohen, C. M. S. [Space Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125 (United States)] [Space Radiation Laboratory, California Institute of Technology, Pasadena, CA 91125 (United States); Nitta, N. V. [Lockheed-Martin Solar and Astrophysics Lab, Palo Alto, CA 94304 (United States)] [Lockheed-Martin Solar and Astrophysics Lab, Palo Alto, CA 94304 (United States); Gomez-Herrero, R., E-mail: mark.e.wiedenbeck@jpl.nasa.gov [Christian-Albrechts Universitaet zu Kiel, D-24118 Kiel (Germany)

    2013-01-01T23:59:59.000Z

    A prevailing model for the origin of {sup 3}He-rich solar energetic particle (SEP) events attributes particle acceleration to processes associated with the reconnection between closed magnetic field lines in an active region and neighboring open field lines. The open field from the small reconnection volume then provides a path along which accelerated particles escape into a relatively narrow range of angles in the heliosphere. The narrow width (standard deviation <20 Degree-Sign ) of the distribution of X-ray flare longitudes found to be associated with {sup 3}He-rich SEP events detected at a single spacecraft at 1 AU supports this model. We report multispacecraft observations of individual {sup 3}He-rich SEP events that occurred during the solar minimum time period from 2007 January through 2011 January using instrumentation carried by the two Solar Terrestrial Relations Observatory spacecraft and the Advanced Composition Explorer. We find that detections of {sup 3}He-rich events at pairs of spacecraft are not uncommon, even when their longitudinal separation is >60 Degree-Sign . We present the observations of the {sup 3}He-rich event of 2010 February 7, which was detected at all three spacecraft when they spanned 136 Degree-Sign in heliographic longitude. Measured fluences of {sup 3}He in this event were found to have a strong dependence on longitude which is well fit by a Gaussian with standard deviation {approx}48 Degree-Sign centered at the longitude that is connected to the source region by a nominal Parker spiral magnetic field. We discuss several mechanisms for distributing flare-accelerated particles over a wide range of heliographic longitudes including interplanetary diffusion perpendicular to the magnetic field, spreading of a compact cluster of open field lines between the active region and the source surface where the field becomes radial and opens out into the heliosphere, and distortion of the interplanetary field by a preceding coronal mass ejection. Statistical studies of additional {sup 3}He-rich events detected at multiple spacecraft will be needed to establish the relative importance of the various mechanisms.

  16. Dear Colleagues: It is our great pleasure to invite you to join Metabolic

    E-Print Network [OSTI]

    , Novozymes, USA) Roel Bovenberg (Director, DSM, Netherlands) Doug Cameron (Managing Director, Piper Jaffray

  17. Cross-Functional Project Teams Real Estate

    E-Print Network [OSTI]

    Kamat, Vineet R.

    Rigg Assistant Director Project Controls Doug Hanna University Architect Design Mary Krasny Associate

  18. Cross-Functional Project Teams Real Estate

    E-Print Network [OSTI]

    Kamat, Vineet R.

    Assistant Director Project Controls Doug Hanna University Architect University Architects Office Mary Krasny

  19. Green University Planning Committee Page 1/2 Agenda May 20, 2011

    E-Print Network [OSTI]

    Owens, Philip

    , Director, Facilities Management Trevor Fuson, CUPE Regrets: Doug Carter, Capital Projects Manager Gail

  20. Tenth Annual Faculty and Staff

    E-Print Network [OSTI]

    Christensen, Dan

    Jones, Louise Milligan (survival kits) Bryan Neff, Doug Jones, Gail Amaral, Heidi Van Galen And special

  1. Mechanisms of Mitotic Spindle Disassembly and Positioning in Saccharomyces cerevisiae

    E-Print Network [OSTI]

    Woodruff, Jeffrey Blake

    2011-01-01T23:59:59.000Z

    Doug Koshland, Stefan Westermann, Liam Holt, and Arash Komeili. My scientific mentors of the past, Gail

  2. From the Editor's Desk: Our Paper Anniversary

    E-Print Network [OSTI]

    Feldman, Mitchell D.; Kravitz, Richard L.

    2010-01-01T23:59:59.000Z

    Doug Beach, Mary Catherine* Becker, Bryan* Beckman, Thomas Bell, Christina* Bender, D. Berger, Barbara Berkenblit, Gail

  3. Initial Site-wide Groundwater remediation Strategy of the Hanford Site, WA: Its Application, Lessons Learned and Future Path forward

    SciTech Connect (OSTI)

    Goswami, D.; Hedges, J.; Whalen, C. [Nuclear Waste Program, Washington State Department of Ecology, WA (United States)

    2007-07-01T23:59:59.000Z

    In 1989, the Washington State Department of Ecology (Ecology), the U.S. Environmental Protection Agency (EPA), and the U.S. Department of Energy (DOE) formed an agreement to clean up the Hanford Site, located in the state of Washington. By 1995, the three parties developed an initial comprehensive site wide groundwater remediation strategy with a vision to address contaminated plumes of hazardous and radioactive waste. The Hanford Site has more than 170 square miles of contaminated groundwater. Almost half exceeds the state and federal drinking water standards. The plumes are often commingled. The remediation is challenged by limited technologies, poor understanding of conceptual models, and subsurface contaminant behavior. This paper briefly describes the basic principles of the initial strategy, its application, the results of the decade-long operation, and the future path forward. The initial strategy was based on a qualitative assessment to reduce immediate risk to human health and the environment; to support commonly held values of stakeholders, including tribal nations and the public; and to deploy available remediation technologies. Two different approaches were used for two distinct geographic, the river shore reactor areas and the central plateau few miles away. The strategy was to cleanup the major groundwater plumes in the reactor areas next to the Columbia River where chromium, strontium-90, and uranium already entering the river and to contain the plumes of chlorinated solvents and radionuclides in the central plateau. The strategy acknowledges the lack of cost-effective technologies to address the contaminants, and asked DOE to develop, test, and deploy cost-effective alternative technologies wherever applicable. After more than a decade, the results are mixed. While the pump and treat provided a meaningful approach to address certain contaminants, it was too small in scale. Efforts to scale up these operations enhance characterization, and to deployment innovative technologies are progressing; albeit slowly due to budget constraints. A number of innovative technologies were identified to address source control and groundwater remediation across the Hanford Site. In the 10 years since the initial strategy was developed, additional severe groundwater and vadose zone contaminations were discovered under the waste storage tanks on the central plateau and river corridor areas. These problems required changes to the strategy. Changes include complete integration of vadose zone and groundwater characterization and remediation activities and immediate needs for technologies to address the deep vadose zone source areas, as well as thick aquifer contamination - especially for chlorinated solvents and technetium-99. The successes of the initial strategy show that even a strategy based on incomplete information can make progress on difficult issues. The regulatory agencies identified these issues early and provided the needed direction to DOE to move forward with the overall mission of clean up. The cleanup of the Hanford site is a big challenge, not only for DOE, but also for the regulators, to ensure the tri-party agencies achieve the desired goals. (authors)

  4. The field of finance is abundant with rewarding opportunities in a wide range of industries. By focusing on real-world cases and applied

    E-Print Network [OSTI]

    Westfall, Peter H.

    The field of finance is abundant with rewarding opportunities in a wide range of industries. By focusing on real-world cases and applied problems, students in the Area of Finance are prepared to become, consulting or corporate finance, our graduates hit the ground running with the skills needed to become

  5. GSC 07396-00759 = V4046 Sgr C[D]: A WIDE-SEPARATION COMPANION TO THE CLOSE T TAURI BINARY SYSTEM V4046 Sgr AB

    E-Print Network [OSTI]

    Kastner, J. H.

    We explore the possibility that GSC 07396-00759 (spectral type M1e) is a widely separated (~2[' over .]82, or projected separation ~12,350 AU) companion to the "old" (age ~12 Myr) classical T Tauri binary system V4046 Sgr ...

  6. CAH Technology Policy Abstract The College of Arts and Humanities uses a wide array of technological resources to uphold the vision and mission

    E-Print Network [OSTI]

    Wu, Shin-Tson

    CAH Technology Policy Abstract The College of Arts and Humanities uses a wide array and compliance with college and university regulations. CAH Technology policy addresses conditions related this policy carefully. Particular attention should be paid to the following points: · The college adheres

  7. Fish die as a result of a wide variety of natural and unnatural causes. Fish may die of old age, starvation,

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Fish die as a result of a wide variety of natural and unnatural causes. Fish may die of old age, severe weather, and other reasons. A few dead fish floating on the surface of a pond or lake is not necessarily cause for alarm. Expect some fish to die of old age, injury, winter starvation, or even post

  8. 9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . INTRODUCTION Problem The landfilling is an attractive method for the municipal solid waste management due9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters problems of the urban water management in developing countries C. Madera* and Viviana Valencia

  9. 9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    supply, sanitation and waste management facilities. Urban context of the Mingoa River watershed9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters on the Municipal Lake of Yaoundé, Cameroon Marielle Naah* *Laboratoire Eau Environnement et Systèmes Urbains (LEESU

  10. 204 Mechanical Engineering and Materials Science 205 of Architecture. The campus-wide Rice Quantum Institute is also active in the research

    E-Print Network [OSTI]

    Richards-Kortum, Rebecca

    204 Mechanical Engineering and Materials Science 205 of Architecture. The campus-wide Rice Quantum. Degree Requirements for B.A., B.S.M.E. in Mechanical Engineering or B.A., B.S.M.S. in Materials Science and Engineering The B.A. program in either mechanical engineering or materials science

  11. GEOPHYSICS, VOL. 54, NO. 9 (SEPTEMBER 1989): P. 1153-I 163, 14 FIGS.. 4 TABLES. Stability of wide-angle absorbing boundary conditions

    E-Print Network [OSTI]

    Renaut, Rosemary

    GEOPHYSICS, VOL. 54, NO. 9 (SEPTEMBER 1989): P. 1153-I 163, 14 FIGS.. 4 TABLES. Stability of wide and numerically. Our numerical results confirm that INTRODUCTION Many geophysical problems, including modeling-1804. *Bergen Scientific Centre, IBM, N5006 Bergen, Norway. 0 1989 Society of Exploration Geophysic

  12. Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in our environment. The

    E-Print Network [OSTI]

    Maynard, J. Barry

    Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in our environment. The chief sources of exposure are from (1) Lead paint ­ commonly present in house interiors (2) Leaded gasoline ­ soils along major roadways are strongly enriched in lead

  13. Copyright 2000, 2013 Board of Regents of the University of Wisconsin System WebAccess Policy, Page 1/2 World Wide Web Accessibility Policy

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    Copyright © 2000, 2013 Board of Regents of the University of Wisconsin System WebAccess Policy, Page 1/2 UW-Madison World Wide Web Accessibility Policy Policy 1. All new or revised Web pages and other Web resources published, hosted or otherwise provided by the University must be in compliance

  14. The MagLab's ultra-wide-bore (105mm) 21.1T NMR/MRI magnet provides an opportunity to use low gamma, low

    E-Print Network [OSTI]

    McQuade, D. Tyler

    The MagLab's ultra-wide-bore (105mm) 21.1T NMR/MRI magnet provides an opportunity to use low gamma, low sensitive nuclei for MR imaging. The potential of nuclei such as chlorine remains largely and the capability of MRI at ultra high magnetic fields to observe glioma. The finding of an increased concentration

  15. 9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    director plans. Keywords Management; decision support systems; sustainable development; geopolitics; social9th World Wide Workshop for Young Environmental Scientists WWW-YES-Brazil-2009: Urban waters: resource or risks? 26-30 October 2009 Brazilian Regulatory Process: including groundwater in urban water

  16. 8th World Wide Workshop for Young Environmental Scientists WWW-YES 2009: Urban waters: resource or risks? 2-5 June 2009

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    that cross the urban-rural divide. Also, an easy-to use model can support decision making at the local urban water planning and policy level. This paper describes ongoing research on the urban water system8th World Wide Workshop for Young Environmental Scientists WWW-YES 2009: Urban waters: resource

  17. Nuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology for energy, environment, and health. NRG offers a wide range of services to energy

    E-Print Network [OSTI]

    Vuik, Kees

    of overheating of the nuclear reactor core during a severe accident, large amount of hydrogen are generatedNuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology for energy, environment, and health. NRG offers a wide range of services to energy utilities, government

  18. Lithium Polymer (LiPo) Battery Usage Lithium polymer batteries are now being widely used in hobby and UAV applications. They work

    E-Print Network [OSTI]

    Langendoen, Koen

    Lithium Polymer (LiPo) Battery Usage 1 Lithium polymer batteries are now being widely used in hobby only LiPo Chargers with Error Detection - It is always recommended that you charge your lithium polymer batteries with a battery charger specifically designed for lithium polymer batteries. As an example, you

  19. A Metaphor Graphics Based Representation of Digital Libraries on the World Wide Web: Using the libViewer to Make Metadata Visible

    E-Print Network [OSTI]

    Rauber,Andreas

    A Metaphor Graphics Based Representation of Digital Libraries on the World Wide Web: Using the lib way to go. Most interfaces to digital libraries present themselves as various forms of sorted lists interface to digital libraries using metaphor graphics to display information on the el­ ements in a digital

  20. A Metaphor Graphics Based Representation of Digital Libraries on the World Wide Web: Using the libViewer to Make Metadata Visible

    E-Print Network [OSTI]

    Rauber,Andreas

    A Metaphor Graphics Based Representation of Digital Libraries on the World Wide Web: Using the lib way to go. Most interfaces to digital libraries present themselves as various forms of sorted lists interface to digital libraries using metaphor graphics to display information on the el- ements in a digital

  1. The New York State Library and the New York Public Library makes a wide variety of online resources available to New York State residents.

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    Library reference librarians http://www.nysl.nysed.gov/reference/ and the New York State Library Digital Available From Home logo . The New York Public Library also has extensive Digital Collections http://www.nypl.org/digitalThe New York State Library and the New York Public Library makes a wide variety of online resources

  2. 8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource or risks? 13-16 May 2008

    E-Print Network [OSTI]

    Boyer, Edmond

    consequence of water lack is unhealthy. Water-borne diseases caused by pathogen agents appear in this city so endemic. Keywords lack, pathogens, quality, water borne disease, water supply, well INTRODUCTION8th World Wide Workshop for Young Environmental Scientists WWW-YES-2008: Urban waters: resource

  3. The phenomenon of ion migration in solids forms the basis for a wide variety of electrochemical applications, ranging from power generators and chemical sensors to

    E-Print Network [OSTI]

    Elliott, James

    of electrochemical applications, ranging from power generators and chemical sensors to ionic switches. SolidAbstract The phenomenon of ion migration in solids forms the basis for a wide variety-state ionics (SSI) is the field of research concerning ionic motions in solids and the materials properties

  4. The production and utilization of a clean, abundant, and renewable energy source is widely accepted as one of the key challenges facing mankind today. Population

    E-Print Network [OSTI]

    Bruck, Jehoshua (Shuki)

    The production and utilization of a clean, abundant, and renewable energy source is widely accepted-splitter and may one day be used as a source of clean energy.The components include (a) Membrane assembly of underdeveloped nations will increase our current demand for energy. Although fossil fuels may power the planet

  5. Fuel Cells in Transit Buses Transit buses are widely viewed as one of the best strategies for commercializing fuel cells for

    E-Print Network [OSTI]

    for commercializing fuel cells for vehicles and transitioning to a hydrogen economy. Many advantages have beenFuel Cells in Transit Buses Summary Transit buses are widely viewed as one of the best strategies identified regarding the use of transit buses as fuel cell platforms. For example: · Transit buses have well

  6. Abstract --The central performance problem in the World Wide Web, in recent years, is user perceived latency. This is the time

    E-Print Network [OSTI]

    Levy, Hanoch

    1 Abstract -- The central performance problem in the World Wide Web, in recent years, is user perceived latency. This is the time spent by a user while waiting for a Web page he/she requested. Im- patience with poor performance is the most common reason visitors terminate their visit at Web sites. For e

  7. Growing Potatoes Soil Potatoes are adapted to a wide range of soil types, though a deep, well-drained sandy loam is ideal.

    E-Print Network [OSTI]

    New Hampshire, University of

    Growing Potatoes Soil Potatoes are adapted to a wide range of soil types, though a deep, well to plant earlier. If irrigation is available, sandy soil will produce a good potato crop. Poorly drained contribute to tuber rot. Grow potatoes in soils with a pH of 5.2 to 5.5 to prevent potato scab. If the level

  8. Development of Superior Sorbents for Separation of CO2 from Flue Gas at a Wide Temperature Range During Coal Combustion

    SciTech Connect (OSTI)

    Panagiotis G. Smirniotis

    2007-06-30T23:59:59.000Z

    In chapter 1, the studies focused on the development of novel sorbents for reducing the carbon dioxide emissions at high temperatures. Our studies focused on cesium doped CaO sorbents with respect to other major flue gas compounds in a wide temperature range. The thermo-gravimetric analysis of sorbents with loadings of CaO doped on 20 wt% cesium demonstrated high CO{sub 2} sorption uptakes (up to 66 wt% CO{sub 2}/sorbent). It is remarkable to note that zero adsorption affinity for N{sub 2}, O{sub 2}, H{sub 2}O and NO at temperatures as high as 600 C was observed. For water vapor and nitrogen oxide we observed a positive effect for CO{sub 2} adsorption. In the presence of steam, the CO{sub 2} adsorption increased to the highest adsorption capacity of 77 wt% CO{sub 2}/sorbent. In the presence of nitrogen oxide, the final CO{sub 2} uptake remained same, but the rate of adsorption was higher at the initial stages (10%) than the case where no nitrogen oxide was fed. In chapter 2, Ca(NO{sub 3}){sub 2} {center_dot} 4H{sub 2}O, CaO, Ca(OH){sub 2}, CaCO{sub 3}, and Ca(CH{sub 3}COO){sub 2} {center_dot} H{sub 2}O were used as precursors for synthesis of CaO sorbents on this work. The sorbents prepared from calcium acetate (CaAc{sub 2}-CaO) resulted in the best uptake characteristics for CO{sub 2}. It possessed higher BET surface area and higher pore volume than the other sorbents. According to SEM images, this sorbent shows 'fluffy' structure, which probably contributes to its high surface area and pore volume. When temperatures were between 550 and 800 C, this sorbent could be carbonated almost completely. Moreover, the carbonation progressed dominantly at the initial short period. Under numerous adsorption-desorption cycles, the CaAc{sub 2}-CaO demonstrated the best reversibility, even under the existence of 10 vol % water vapor. In a 27 cyclic running, the sorbent sustained fairly high carbonation conversion of 62%. Pore size distributions indicate that their pore volume decreased when experimental cycles went on. Silica was doped on the CaAc{sub 2}-CaO in various weight percentages, but the resultant sorbent did not exhibit better performance under cyclic operation than those without dopant. In chapter 3, the Calcium-based carbon dioxide sorbents were made in the gas phase by flame spray pyrolysis (FSP) and compared to the ones made by standard high temperature calcination (HTC) of selected calcium precursors. The FSP-made sorbents were solid nanostructured particles having twice as large specific surface area (40-60 m{sup 2}/g) as the HTC-made sorbents (i.e. from calcium acetate monohydrate). All FSP-made sorbents showed high capacity for CO{sub 2} uptake at high temperatures (773-1073 K) while the HTC-made ones from calcium acetate monohydrate (CaAc{sub 2} {center_dot} H{sub 2}O) demonstrated the best performance for CO{sub 2} uptake among all HTC-made sorbents. At carbonation temperatures less than 773 K, FSP-made sorbents demonstrated better performance for CO{sub 2} uptake than all HTC-made sorbents. Above that, both FSP-made, and HTC-made sorbents from CaAc{sub 2} {center_dot} H{sub 2}O exhibited comparable carbonation rates and maximum conversion. In multiple carbonation/decarbonation cycles, FSP-made sorbents demonstrated stable, reversible and high CO{sub 2} uptake capacity sustaining maximum molar conversion at about 50% even after 60 such cycles indicating their potential for CO{sub 2} uptake. In chapter 4 we investigated the performance of CaO sorbents with dopant by flame spray pyrolysis at higher temperature. The results show that the sorbent with zirconia gave best performance among sorbents having different dopants. The one having Zr to Ca of 3:10 by molar gave stable performance. The calcium conversion around 64% conversion during 102-cycle operations at 973 K. When carbonation was performance at 823 K, the Zr/Ca sorbent (3:10) exhibited stable performance of 56% by calcium molar conversion, or 27% by sorbent weight, both of which are less than those at 973 K as expected. In chapter 5 we investigated the perfor

  9. Enhanced Chemical Incident Response Plan (ECIRP). Appendix F, remediation analysis with Decision Support Tools (DSTs) for wide-area chemical hazards.

    SciTech Connect (OSTI)

    Hassig, Nancy L. (Pacific Northwest National Laboratory, Richland, WA); Pulsipher, Brent A. (Pacific Northwest National Laboratory, Richland, WA); Foltz, Greg W.; Hoette, Trisha Marie

    2011-07-01T23:59:59.000Z

    The Defense Threat Reduction Agency (DTRA) commissioned an assessment of the Consequence Management (CM) plans in place on military bases for response to a chemical attack. The effectiveness of the CM plans for recovering from chemical incidents was modeled using a multiple Decision Support Tools (DSTs). First, a scenario was developed based on an aerial dispersion of a chemical agent over a wide-area of land. The extent of contamination was modeled with the Hazard Prediction and Assessment Capability (HPAC) tool. Subsequently, the Analyzer for Wide Area Restoration Effectiveness (AWARE) tool was used to estimate the cost and time demands for remediation based on input of contamination maps, sampling and decontamination resources, strategies, rates and costs. The sampling strategies incorporated in the calculation were designed using the Visual Sample Plan (VSP) tool. Based on a gaps assessment and the DST remediation analysis, an Enhanced Chemical Incident Response Plan (ECIRP) was developed.

  10. SWEIS Yearbook-2012 Comparison of 2012 Data to Projections of the 2008 Site-Wide Environmental Impact Statement for Continued Operation of Los Alamos National Laboratory

    SciTech Connect (OSTI)

    Mahowald, Hallie B. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Wright, Marjorie Alys [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-01-16T23:59:59.000Z

    Los Alamos National Laboratory (LANL or the Laboratory) operations data for Calendar Year (CY) 2012 mostly fell within the 2008 Site-Wide Environmental Impact Statement (SWEIS) projections. Operation levels for one LANL facility exceeded the 2008 SWEIS capability projections—Radiochemistry Facility; however, none of the capability increases caused exceedances in radioactive air emissions, waste generation, or National Pollutant Discharge Elimination System (NPDES) discharge. Several facilities exceeded the2008 SWEIS levels for waste generation quantities; however, all were one-time, non-routine events that do not reflect the day-to-day operations of the Laboratory. In addition, total site-wide waste generation quantities were below SWEIS projections for all waste types, reflecting the overall levels of operations at both the Key and Non-Key Facilities. Although gas and electricity consumption have remained within the 2008 SWEIS limits for utilities, water consumption exceeded the 2008 SWEIS projections by 27 million gallons in CY 2012.

  11. EIS-0238-S1: Supplemental Environmental Impact Statement to the Final Site-Wide Environmental Impact Statement for Continued Operation of the Los Alamos National Laboratory, New Mexico

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE), Albuquerque Operations Office, has prepared a Supplemental Analysis (SA) to determine if the Site-Wide Environmental Impact Statement for Continued Operations of Los Alamos National Laboratory (SWEIS) adequately addresses the environmental effects of a proposal for modifying current methods utilized to receive and manage certain offsite unwanted radioactive sealed sources at Los Alamos National Laboratory or if additional documentation under the National Environmental Policy Act (NEPA) is needed.

  12. The longest thermonuclear X-ray burst ever observed? (A BeppoSAX Wide Field Camera observation of 4U 1735-44)

    E-Print Network [OSTI]

    R. Cornelisse; J. Heise; E. Kuulkers; F. Verbunt; J. J. M. in 't Zand

    2000-03-30T23:59:59.000Z

    A long flux enhancement, with an exponential decay time of 86 min, is detected in 4U 1735-44 with the BeppoSAX Wide Field Cameras. We argue that this is a type-I X-ray burst, making it the longest such burst ever observed. Current theories for thermonuclear bursts predict shorter and more frequent bursts for the observed persistent accretion rate.

  13. Demonstration of a Novel Synchrophasor-based Situational Awareness System: Wide Area Power System Visualization, On-line Event Replay and Early Warning of Grid Problems

    SciTech Connect (OSTI)

    Rosso, A.

    2012-12-31T23:59:59.000Z

    Since the large North Eastern power system blackout on August 14, 2003, U.S. electric utilities have spent lot of effort on preventing power system cascading outages. Two of the main causes of the August 14, 2003 blackout were inadequate situational awareness and inadequate operator training In addition to the enhancements of the infrastructure of the interconnected power systems, more research and development of advanced power system applications are required for improving the wide-area security monitoring, operation and planning in order to prevent large- scale cascading outages of interconnected power systems. It is critically important for improving the wide-area situation awareness of the operators or operational engineers and regional reliability coordinators of large interconnected systems. With the installation of large number of phasor measurement units (PMU) and the related communication infrastructure, it will be possible to improve the operators’ situation awareness and to quickly identify the sequence of events during a large system disturbance for the post-event analysis using the real-time or historical synchrophasor data. The purpose of this project was to develop and demonstrate a novel synchrophasor-based comprehensive situational awareness system for control centers of power transmission systems. The developed system named WASA (Wide Area Situation Awareness) is intended to improve situational awareness at control centers of the power system operators and regional reliability coordinators. It consists of following main software modules: • Wide-area visualizations of real-time frequency, voltage, and phase angle measurements and their contour displays for security monitoring. • Online detection and location of a major event (location, time, size, and type, such as generator or line outage). • Near-real-time event replay (in seconds) after a major event occurs. • Early warning of potential wide-area stability problems. The system has been deployed and demonstrated at the Tennessee Valley Authority (TVA) and ISO New England system using real-time synchrophasor data from openPDC. Apart from the software product, the outcome of this project consists of a set of technical reports and papers describing the mathematical foundations and computational approaches of different tools and modules, implementation issues and considerations, lessons learned, and the results of lidation processes.

  14. Applying Decay Strategies to Branch Predictors for Leakage Energy Savings Zhigang Hu y Philo Juang y Kevin Skadron z Doug Clark Margaret Martonosi y

    E-Print Network [OSTI]

    Martonosi, Margaret

    Applying Decay Strategies to Branch Predictors for Leakage Energy Savings Zhigang Hu y Philo Juang process, leakage energy starts to become a major concern, especially for large on­chip array structures to consider applying decay techniques, which can reduce leak­ age energy for caches, to the branch

  15. A 2-Stage Genome-Wide Association Study to Identify Single Nucleotide Polymorphisms Associated With Development of Erectile Dysfunction Following Radiation Therapy for Prostate Cancer

    SciTech Connect (OSTI)

    Kerns, Sarah L. [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States) [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States); Departments of Pathology and Genetics, Albert Einstein College of Medicine, Bronx, New York (United States); Stock, Richard [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States)] [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States); Stone, Nelson [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States) [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States); Department of Urology, Mount Sinai School of Medicine, New York, New York (United States); Buckstein, Michael [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States)] [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States); Shao, Yongzhao [Division of Biostatistics, New York University School of Medicine, New York, New York (United States)] [Division of Biostatistics, New York University School of Medicine, New York, New York (United States); Campbell, Christopher [Departments of Pathology and Genetics, Albert Einstein College of Medicine, Bronx, New York (United States)] [Departments of Pathology and Genetics, Albert Einstein College of Medicine, Bronx, New York (United States); Rath, Lynda [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States)] [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States); De Ruysscher, Dirk; Lammering, Guido [Department of Radiation Oncology, Maastricht University Medical Center, Maastricht (Netherlands)] [Department of Radiation Oncology, Maastricht University Medical Center, Maastricht (Netherlands); Hixson, Rosetta; Cesaretti, Jamie; Terk, Mitchell [Florida Radiation Oncology Group, Jacksonville, Florida (United States)] [Florida Radiation Oncology Group, Jacksonville, Florida (United States); Ostrer, Harry [Departments of Pathology and Genetics, Albert Einstein College of Medicine, Bronx, New York (United States)] [Departments of Pathology and Genetics, Albert Einstein College of Medicine, Bronx, New York (United States); Rosenstein, Barry S., E-mail: barry.rosenstein@mssm.edu [Department of Radiation Oncology, Mount Sinai School of Medicine, New York, New York (United States); Department of Radiation Oncology, New York University School of Medicine, New York, New York (United States); Departments of Dermatology and Preventive Medicine, Mount Sinai School of Medicine, New York, New York (United States)

    2013-01-01T23:59:59.000Z

    Purpose: To identify single nucleotide polymorphisms (SNPs) associated with development of erectile dysfunction (ED) among prostate cancer patients treated with radiation therapy. Methods and Materials: A 2-stage genome-wide association study was performed. Patients were split randomly into a stage I discovery cohort (132 cases, 103 controls) and a stage II replication cohort (128 cases, 102 controls). The discovery cohort was genotyped using Affymetrix 6.0 genome-wide arrays. The 940 top ranking SNPs selected from the discovery cohort were genotyped in the replication cohort using Illumina iSelect custom SNP arrays. Results: Twelve SNPs identified in the discovery cohort and validated in the replication cohort were associated with development of ED following radiation therapy (Fisher combined P values 2.1 Multiplication-Sign 10{sup -5} to 6.2 Multiplication-Sign 10{sup -4}). Notably, these 12 SNPs lie in or near genes involved in erectile function or other normal cellular functions (adhesion and signaling) rather than DNA damage repair. In a multivariable model including nongenetic risk factors, the odds ratios for these SNPs ranged from 1.6 to 5.6 in the pooled cohort. There was a striking relationship between the cumulative number of SNP risk alleles an individual possessed and ED status (Sommers' D P value = 1.7 Multiplication-Sign 10{sup -29}). A 1-allele increase in cumulative SNP score increased the odds for developing ED by a factor of 2.2 (P value = 2.1 Multiplication-Sign 10{sup -19}). The cumulative SNP score model had a sensitivity of 84% and specificity of 75% for prediction of developing ED at the radiation therapy planning stage. Conclusions: This genome-wide association study identified a set of SNPs that are associated with development of ED following radiation therapy. These candidate genetic predictors warrant more definitive validation in an independent cohort.

  16. Non-smooth Chemical Freeze-out and Apparent Width of Wide Resonances and Quark Gluon Bags in a Thermal Environment

    E-Print Network [OSTI]

    K. A. Bugaev; A. I. Ivanytskyi; D. R. Oliinychenko; E. G. Nikonov; V. V. Sagun; G. M. Zinovjev

    2014-05-06T23:59:59.000Z

    Here we develop the hadron resonance gas model with the Gaussian width of hadron resonances. This model allows us to treat the usual hadrons and the quark gluon bags on the same footing and to study the stability of the results obtained within different formulations of the hadron resonance gas model. In this work we perform a successful fit of 111 independent hadronic multiplicity ratios measured for $\\sqrt{s_{NN}} $= 2.7- 200 GeV. We demonstrate that in a narrow range of collision energy $\\sqrt{s_{NN}} =$ 4.3-4.9 GeV there exist peculiar irregularities in various thermodynamic quantities found at chemical freeze-out. The most remarkable irregularity is an unprecedented jump of the number of effective degrees of freedom observed in this narrow energy range which is seen in all realistic versions of the hadron resonance gas model. Therefore, the developed concept is called the non-smooth chemical freeze-out. We are arguing that these irregularities evidence for the possible formation of quark gluon bags. In order to develop other possible signals of their formation here we study the apparent width of wide hadronic resonances and quark gluon bags in a thermal environment. Two new effects generated for the wide resonances and quark gluon bags by a thermal medium are discussed here: the near threshold thermal resonance enhancement and the near threshold thermal resonance sharpening. On the basis of the new effects we argue that the most optimistic chance to find experimentally the quark gluon bags may be related to their sharpening and enhancement in a thermal medium. In this case the wide quark gluon bags may appear directly or in decays as narrow resonances that are absent in the tables of elementary particles and that have the apparent width about 50-120 MeV and the mass about or above 2.5 GeV.

  17. EA-1968: Site-Wide Environmental Assessment of the U.S. Department of Energy National Renewable Energy Laboratory (NREL) South Table Mountain (STM) Campus, Golden, Colorado

    Broader source: Energy.gov [DOE]

    DOE is preparing a Site-Wide Environmental Assessment to analyze the potential environmental impacts of possible site operations and improvements over the next five to ten years at DOE’s STM campus of NREL and nearby leased support facilities in Golden, Colorado. This proposed action would support DOE’s mission to research, develop, and deploy energy efficiency and renewable energy technologies and would consist of: • Research, routine laboratory, and site operation enhancements • New building construction and modifications of existing buildings • Infrastructure and utilities upgrades and enhancements

  18. University-Wide Instructional Programs University-Wide Instructional

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    business; air pollution assessment and management; air quality; biological control and pest management management; sustainable building design and construction; and water chemistry, quality, and management in environmental management, science, and policy. It is difficult to find a degree or department that does

  19. In only four or five years, the World Wide Web has changed from a static collection of HTML web pages to a dynamic engine that powers e-commerce, collaborative work, and distribution

    E-Print Network [OSTI]

    Offutt, Jeff

    Abstract In only four or five years, the World Wide Web has changed from a static collection process 1 Introduction Only a few short years ago, the World Wide Web (Web) was used to make information. Although the term "heterogeneous" is often used to describe web applications, this word is traditionally

  20. Self-Management of Patient Body Position, Pose, and Motion Using Wide-Field, Real-Time Optical Measurement Feedback: Results of a Volunteer Study

    SciTech Connect (OSTI)

    Parkhurst, James M. [Developing Technologies, Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester (United Kingdom); Price, Gareth J., E-mail: gareth.price@christie.nhs.uk [Developing Technologies, Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester (United Kingdom); Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester (United Kingdom); Sharrock, Phil J. [Developing Technologies, Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester (United Kingdom); Jackson, Andrew S.N. [Clinical Oncology, Southampton University Hospitals Foundation Trust, Southampton (United Kingdom); Stratford, Julie [Department of Radiotherapy, The Christie NHS Foundation Trust, Manchester (United Kingdom); Moore, Christopher J. [Developing Technologies, Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester (United Kingdom); Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, Manchester (United Kingdom)

    2013-12-01T23:59:59.000Z

    Purpose: We present the results of a clinical feasibility study, performed in 10 healthy volunteers undergoing a simulated treatment over 3 sessions, to investigate the use of a wide-field visual feedback technique intended to help patients control their pose while reducing motion during radiation therapy treatment. Methods and Materials: An optical surface sensor is used to capture wide-area measurements of a subject's body surface with visualizations of these data displayed back to them in real time. In this study we hypothesize that this active feedback mechanism will enable patients to control their motion and help them maintain their setup pose and position. A capability hierarchy of 3 different level-of-detail abstractions of the measured surface data is systematically compared. Results: Use of the device enabled volunteers to increase their conformance to a reference surface, as measured by decreased variability across their body surfaces. The use of visual feedback also enabled volunteers to reduce their respiratory motion amplitude to 1.7 ± 0.6 mm compared with 2.7 ± 1.4 mm without visual feedback. Conclusions: The use of live feedback of their optically measured body surfaces enabled a set of volunteers to better manage their pose and motion when compared with free breathing. The method is suitable to be taken forward to patient studies.