National Library of Energy BETA

Sample records for david szucs approx

  1. David Tooker

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

    David Tooker David Tooker David-Tooker.jpg David Tooker DPTooker@lbl.gov Phone: (510) 486-4003 Mobile: (510) 637-9410 Assistant Facilities Manager Last edited: 2014-03-18 12:33:03...

  2. David Paul

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

    David Paul David Paul David-Paul.jpg David Paul Computational Systems Group DPaul@lbl.gov Phone: (510) 495-2883 Fax: (510) 486-4316 1 Cyclotron Road Mail Stop 943-256 Berkeley, CA...

  3. David Foster

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

    Policies ESnet Policy Board Larry Smarr Jagdeep Singh Kristin Rauschenbach Cees de Laat David Foster David Clark Vinton Cerf ESCC Acceptable Use Policy Facility Data Policy Career...

  4. Sandia Energy - David Wilson

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

    Wilson Home David Wilson David Wilson Mechanical Engineer Department: Water Power Technologies wilson-david...

  5. David Amaral

    Office of Energy Efficiency and Renewable Energy (EERE)

    David is the DOE Facility Chairperson for the Eisenhower School for National Security and Resource Strategy. David has over 25 years of human resources experience and has served in a variety of...

  6. David Sandalow

    Broader source: Energy.gov [DOE]

    As Under Secretary of Energy (Acting), David Sandalow helped to oversee the Department’s renewable energy, energy efficiency, fossil energy, nuclear energy and electricity delivery...

  7. David Mitchell

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

    David Mitchell Engineering Services The Network OSCARS Fasterdata IPv6 Network Network Performance Tools The ESnet Engineering Team Contact Us Technical Assistance: 1 800-33-ESnet...

  8. David Hemelright

    Broader source: Energy.gov [DOE]

    David Hemelright, who lives in Lenoir City, is the K–12 Facilities Specialist for Kaatz, Binkley, Jones & Morris Architects, Inc, specializing in Tennessee public school planning, design...

  9. David Keavney

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

    Publications Contact Us Ring Status Current Schedule David Keavney Argonne National Laboratory 9700 S. Cass Ave 431E002 Argonne, Il 60439 Phone: 252-7893 Fax: 252-7392 E-Mail:...

  10. David Johnson

    Broader source: Energy.gov [DOE]

    David Johnson is the Deputy Assistant Secretary for the Office of Petroleum Reserves in the Office of Fossil Energy. He is responsible for the management and direction of the Strategic Petroleum...

  11. David Foster

    Broader source: Energy.gov [DOE]

    David Foster joined the Energy Department as a senior advisor on industrial and economic policy in June, 2014. Prior to his appointment, he served eight years as the founding Executive Director of...

  12. David Cohan

    Broader source: Energy.gov [DOE]

    [[{"type":"media","view_mode":"media_large","fid":"1069436","attributes":{"alt":"Headshot of David Cohan.","class":"media-image caption","height":"162","style":"width: 108px; height: 162px; float:...

  13. David Clark

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

    Clark About ESnet Our Mission The Network ESnet History Governance & Policies ESnet Policy Board Larry Smarr Jagdeep Singh Kristin Rauschenbach Cees de Laat David Foster David Clark Vinton Cerf ESCC Acceptable Use Policy Data Privacy Policy Facility Data Policy Career Opportunities ESnet Staff & Org Chart Contact Us Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems:

  14. Sandia Energy - David Maniaci

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

    Maniaci Home David Maniaci David Maniaci Aerodynamics Lead Department: Wind Energy Technologies maniaci David Maniaci is the Rotor Blade and Wind Plant Aerodynamics Lead in the...

  15. David Mitchell

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

    David Mitchell About ESnet Our Mission The Network ESnet History Governance & Policies Career Opportunities ESnet Staff & Org Chart ESnet Leadership Administration Advanced Network Technologies Cybersecurity Infrastructure, Identity & Collaboration Network Engineering Network Planning Operational Enhancements Office of the CTO Science Engagement Tools Team Contact Us Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1

  16. David Mohler | Department of Energy

    Energy Savers [EERE]

    David Mohler - Deputy Assistant Secretary, Office of Clean Coal and Carbon Management David Mohler David Mohler is the Deputy Assistant Secretary for Clean Coal and Carbon ...

  17. David K. Zabransky

    Broader source: Energy.gov [DOE]

    David K. Zabransky is the Director of the Office of Standard Contract Management in the Office of the General Counsel.

  18. David Gates home page

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

    Friedman About Us David Friedman - Assistant Secretary for Energy Efficiency and Renewable Energy (Acting) Photo of David Friedman. As Acting Assistant Secretary for the Office of Energy Efficiency and Renewable Energy (EERE), David Friedman leads the organization to transition the nation to a clean energy economy. He oversees six major technology and strategic areas, including Energy Efficiency, Renewable Power, Sustainable Transportation, Strategic Programs, Financial Management, and Business

  19. David M. Rose

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

    M. Klaus About Us David M. Klaus - Deputy Under Secretary for Management and Performance David Klaus, Deputy Under Secretary for Management and Performance David M. Klaus has served as the Deputy Under Secretary for Management and Performance at the U.S. Department of Energy since July 2013. The Office of the Under Secretary for Management and Performance functions as the Chief Operating Officer of the Department and has responsibility for its primary mission support organizations, including

  20. David G. Huizenga

    Broader source: Energy.gov [DOE]

    David G. Huizenga currently serves as the Principal Assistant Deputy Administrator for Defense Nuclear Nonproliferation (DNN) at the Department of Energy’s National Nuclear Security...

  1. Mr. David Meyer

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

    David Meyer Office of Electricity Delivery and Energy ... National Electric Transmission Congestion Study Dear Mr. ... and inform transmission investment and policy decisions. ...

  2. Liron David | Photosynthetic Antenna Research Center

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

    Liron David Liron David placeholder image Liron David Alumnus E-mail: liron.david@childrens.harvard.edu Website: Harvard University Formerly a student of PARC Research Affiliate...

  3. David Sims - ORNL - Energy Innovation Portal

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

    David Dims Photo of David Sims, Commercialization Manager in the Partnerships Directorate at the Oak Ridge National Laboratory (ORNL) Meet David Sims. David is a Commercialization...

  4. David W. Templeton | Bioenergy | NREL

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

    W. Templeton David W. Templeton Senior Biomass Analyst David.Templeton@nrel.gov | 303-384-7764 Research Interests David W. Templeton is the senior biomass analyst on the Biomass ...

  5. David Lee | Department of Energy

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

    Lee About Us David Lee - Residential Program Supervisor, Building Technologies Program David Lee is Residential Program Supervisor, Building Technologies Program with the Office of ...

  6. David Ortiz, OE-40

    Broader source: Energy.gov [DOE]

    David Ortiz is the former Deputy Assistant Secretary for Energy Infrastructure Modeling and Analysis (EIMA) in the Department of Energy's Office of Electricity Delivery and Energy...

  7. David J. Weitzman- Biography

    Broader source: Energy.gov [DOE]

    David Weitzman is an industrial hygienist in the DOE's Office of Health, Safety and Security, Office of Safety and Health Policy. He primarily has been engaged in developing worker protection policy since joining the DOE in 1990.

  8. David Telles wins NNSA Security

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

    David Telles wins NNSA Security Professional of the Year award May 7, 2009 LOS ALAMOS, New Mexico, May 7, 2009 - David M. Telles, who leads Los Alamos National Laboratory's...

  9. David Bina | Photosynthetic Antenna Research Center

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

    Bina David Bina David Bina David Bina Alumnus E-mail: david.bina@seznam.cz Website: University of South Bohemia Dr. Bina completed his postdoctoral appointment at Washington...

  10. Mr. David Martin, Chair

    Office of Environmental Management (EM)

    Oak Ridge Office P.O. Box 2001 Oak Ridge, Tennessee 37831 January 8, 2013 Oak Ridge Site Specific Advisory Board Post Office Box 2001 Oak Ridge, Tennessee 3 7831 Dear Mr. Martin: RESPONSE TO YOUR LETTER DATED OCTOBER 16,2012, RECOMMENDATION 211: RECOMMENDATION AVAILABILITY OF DEPARTMENT OF ENERGY (DOE) ENVIRONMENTAL MANAGEMENT DOCUMENTS Reference: October 16, 2012 Letter from David Martin to Susan Cange, Recommendation 211: Recommendation on Availability of DOE Environmental Management Documents

  11. David Friedman | Department of Energy

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

    Friedman About Us David Friedman - Assistant Secretary for Energy Efficiency and Renewable Energy (Acting) Photo of David Friedman. As Acting Assistant Secretary for the Office of Energy Efficiency and Renewable Energy (EERE), David Friedman leads the organization to transition the nation to a clean energy economy. He oversees six major technology and strategic areas, including Energy Efficiency, Renewable Power, Sustainable Transportation, Strategic Programs, Financial Management, and Business

  12. David Nemtzow | Department of Energy

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

    Nemtzow About Us David Nemtzow - Building Technologies Office Director (Acting) Photo of David Nemtzow. David Nemtzow was named as the Building Technologies Office Director of the Office of Energy Efficiency and Renewable Energy (EERE) after previously serving as the team's Senior Strategist. He brings to EERE more than three decades of experience in the industry, including running a large state government energy and water department, a prominent bi-partisan non-profit energy efficiency

  13. David Moore | Department of Energy

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

    Moore About Us David Moore - Presidential Management Fellow, Office of Energy Efficiency & Renewable Energy David Moore joined the Department in November 2010 as a Presidential Management Fellow in the Office of Energy Efficiency and Renewable Energy. A Georgia native with North Carolina roots, David's passion for good innovation policy is matched only by his appreciation of excellent barbecue and handcrafted libations. He studied international finance and resource policy at Johns Hopkins

  14. David Danielson | Department of Energy

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

    David Danielson About Us David Danielson - Former Assistant Secretary for the Office of Energy Efficiency and Renewable Energy David Danielson is the former Assistant Secretary for the Office of Energy Efficiency and Renewable Energy. Most Recent Small Business Vouchers Pilot: 33 Businesses Selected for Lab Collaboration, Round 2 Now Open March 16 Building the American Clean Energy Innovation Ecosystem: Cyclotron Road Announces New Innovators, Success of First Cohort March 15 New CEMAC Report

  15. David Turk | Department of Energy

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

    David Turk About Us David Turk - Deputy Assistant Secretary for International Climate and Technology David Turk Dave Turk is Deputy Assistant Secretary for International Climate and Technology at the U.S. Department of Energy. In this role, Mr. Turk helps to coordinate the Department's international climate change and clean energy efforts. He has previously served as Deputy Special Envoy for Climate Change at the U.S. Department of State, where he focused on a range of bilateral and multilateral

  16. NREL: Energy Analysis - David Harrison

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

    Harrison David Harrison is a member of the Data Analysis and Visualization Group in the Strategic Energy Analysis Center. Software Engineer On staff since 2009 Phone number:...

  17. David Feldman | Department of Energy

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

    David Feldman - Energy Analyst, Department of Energy's National Renewable Energy Laboratory ... related to financial, policy, and market developments in the solar industry. ...

  18. David Lee | Department of Energy

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

    Residential Program Supervisor, Building Technologies Office David Lee is the Residential Program Supervisor for the Building Technologies Office within the Office of Energy ...

  19. Dr. David Peters | Photosynthetic Antenna Research Center

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

    David Peters October 18, 2011 Dr. David Peters An Overview of Wind Energy Systems Published: October 18, 2011 As part of PARC's Events and Topics in Bioenergy Series, Dr. David...

  20. David J. Gross and the Strong Force

    Office of Scientific and Technical Information (OSTI)

    from Cal Alum David Gross (PhD '66) Shares Nobel Prize in Physics, University of California Berkeley Resources with Additional Information Additional information about David ...

  1. David Swainsbury | Photosynthetic Antenna Research Center

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

    Swainsbury David Swainsbury David Swainsbury Postdoctoral Research Associate E-mail: d.swainsbury@sheffield.ac.uk Website: University of Sheffield Postdoctoral Associates...

  2. David Skinner Named NERSC Strategic Partnerships Lead

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

    David Skinner Named NERSC Strategic Partnerships Lead David Skinner Named NERSC Strategic Partnerships Lead January 24, 2014 Contact: Linda Vu, +1 510 495 2402, lvu@lbl.gov...

  3. David Martin | Argonne Leadership Computing Facility

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

    David Martin Industrial Outreach Lead David Martin Argonne National Laboratory 9700 South Cass Avenue Building 240 - Rm. 3126 Argonne, IL 60439 630-252-0929 dem...

  4. Perspective & Acquisition Fellows Program - David Klaus, Deputy...

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

    Perspective & Acquisition Fellows Program - David Klaus, Deputy Under Secretary for Management and Performance Perspective & Acquisition Fellows Program - David Klaus, Deputy Under ...

  5. David Steward | Department of Energy

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

    David Steward About Us David Steward - Chairman and founder of World Wide Technology (WWT) David Steward WWT is a market-leading systems integrator and supply chain solutions provider. Started in 1990, with a handful of employees and a 4,000 square foot office, WWT posted its strongest year to date in 2013, with over 2,500 employees and two and a half million-plus sq. ft. of facilities and annual revenues exceeding $6 billion. Mr. Steward is the Council Board Chair for the Greater St. Louis Area

  6. David A. Sievers | Bioenergy | NREL

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

    A. Sievers David A. Sievers Senior R&D Engineer David.Sievers@nrel.gov | 303-384-7748 Research Interests Thermochemical pretreatment residence time distribution measurement and control Solid-liquid separation of a wide variety of biomass intermediate slurries Continuous enzymatic hydrolysis (reactive separations) Sugar fractionation and concentration Co-product recovery and purification Specialized instrumentation Affiliated Research Programs Separations Development and Application

  7. David Dieffenthaler | Argonne National Laboratory

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

    Danielson About Us David Danielson - Former Assistant Secretary for the Office of Energy Efficiency and Renewable Energy David Danielson is the former Assistant Secretary for the Office of Energy Efficiency and Renewable Energy. Most Recent Small Business Vouchers Pilot: 33 Businesses Selected for Lab Collaboration, Round 2 Now Open March 16 Building the American Clean Energy Innovation Ecosystem: Cyclotron Road Announces New Innovators, Success of First Cohort March 15 New CEMAC Report Examines

  8. David Telles wins NNSA Security

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

    David Telles wins NNSA Security Professional of the Year award May 7, 2009 LOS ALAMOS, New Mexico, May 7, 2009 - David M. Telles, who leads Los Alamos National Laboratory's Vulnerability Analysis Office, received a 2008 National Nuclear Security Administration Security Professional of the Year award. NNSA administrator Tom D'Agostino said, "Our security professionals dedicate themselves to protecting some of the nation's most vital strategic assets, and in so doing, help advance broader

  9. David Underwood | Argonne National Laboratory

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

    Underwood Physicist For David, polarization related phenomena in hadronic spin physics has been a recurring theme pursued in various experiments at many laboratories, and currently at RHIC. He has also developed optical innovations and solutions from polarized particle beam design through light collection, and most recently high speed optical data links. David designed the polarized beamline at Fermilab in the 1990's and led the implementation of many aspects of it. Results from this experiment

  10. H. David Politzer, Asymptotic Freedom, and Strong Interaction

    Office of Scientific and Technical Information (OSTI)

    H. David Politzer, Asymptotic Freedom, and Strong Interaction Resources with Additional Information H. David Politzer Photo Credit: California Institute of Technology H. David...

  11. David Armstrong | Photosynthetic Antenna Research Center

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

    Armstrong David Armstrong David Armstrong Alumnus Dr. Armstrong completed his PhD under PARC PI Neil Hunter and is currently a staff member of the Bioinformatics Institute, Cambridge, United Kingdom

  12. Dr. David Tiede | Photosynthetic Antenna Research Center

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

    David Tiede April 22, 2015 Dr. David Tiede "Wiring Photosynthetic and Redox Proteins for Solar Fuels Function" An error occurred. Try watching this video on www.youtube.com, or...

  13. David Skinner Named NERSC Strategic Partnerships Lead

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

    David Skinner Named NERSC Strategic Partnerships Lead David Skinner Named NERSC Strategic Partnerships Lead January 24, 2014 Contact: Linda Vu, +1 510 495 2402, lvu@lbl.gov XBD201102-00089.jpg David Skinner This month, the National Energy Research Scientific Computing Center (NERSC) created a new position-Strategic Partnerships Lead, to identify new science communities that can benefit from NERSC resources. David Skinner, former head of NERSC's Outreach Software and Programming Group (OSP), has

  14. David F. Conrad | Department of Energy

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

    David F. Conrad About Us David F. Conrad - Deputy Director, Office of Indian Energy Policy and Programs David Conrad, Director for Tribal and Intergovernmental Affairs David F. Conrad (Osage Nation) serves as the deputy director for the U.S. Department of Energy Office of Indian Energy Policy and Programs. He previously served as the Department's Director for Tribal and Intergovernmental Affairs in the Office of Congressional and Intergovernmental Affairs, where he was responsible for

  15. David M. Klaus | Department of Energy

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

    David M. Klaus About Us David M. Klaus - Deputy Under Secretary for Management and Performance David Klaus, Deputy Under Secretary for Management and Performance David M. Klaus has served as the Deputy Under Secretary for Management and Performance at the U.S. Department of Energy since July 2013. The Office of the Under Secretary for Management and Performance functions as the Chief Operating Officer of the Department and has responsibility for its primary mission support organizations,

  16. Dr. David Wilson | Department of Energy

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

    David Wilson About Us Dr. David Wilson - President, Morgan State University Dr. David Wilson Dr. David Wilson, the 10th inaugurated president of Morgan State University, has a long record of accomplishments and more than 30 years of experience in higher education administration. He holds four academic degrees: a B.S. in political science and an M.S. in education from Tuskegee University; a master's in educational planning and administration from Harvard University; and a doctorate in

  17. David Hopkinson | netl.doe.gov

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

    David Hopkinson david-hopkinson.png Dr. David Hopkinson joined the National Energy Technology Laboratory in 2010, serving as the team lead for the Separations Materials Team and the technical portfolio lead for the Carbon Capture Field Work Proposal (FWP). Under the Carbon Capture FWP, Hopkinson and his team are developing innovative new solvent, sorbent, and membrane materials for the separation of carbon dioxide from flue gas in fossil fueled power plants. His ultimate goal is to prove the

  18. David S. Ginley - Research Fellow | NREL

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

    David S. Ginley - Research Fellow Photo of David S. Ginley Research Fellows David S. Ginley's current activities are in the areas of the general class of defective transition metal oxides including high temperature superconductors, LiTMO2 rechargable Li battery materials, ferroelectric materials, transparent conducting oxides and electrochromic materials. Another focus of his work is on the development of new nano-materials for organic electronics and as biofilters etc. Dr. Ginley's work is

  19. david miller | netl.doe.gov

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

    david miller david-miller.jpg Dr. David Miller joined the National Energy Technology Laboratory's (NETL) Computational Science Division in 2009 as a general engineer after a ten-year career as a professor of chemical engineering at the Rose-Hulman Institute of Technology. Since joining the lab, Miller has led the Department of Energy's Carbon Capture Simulation Initiative (CCSI) from its inception. CCSI is a partnership among national labs, universities, and industry to develop, demonstrate, and

  20. Lee Berry, Paul Bonoli, David Green

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

    Lee Berry, Paul Bonoli, David Green Lee Berry, Paul Bonoli, David Green FES Requirements Worksheet 1.1. Project Information - Center for Simulation of Wave-Plasma Interactions (aka RF SciDAC) Document Prepared By Lee Berry, Paul Bonoli, David Green Project Title Center for Simulation of Wave-Plasma Interactions (aka RF SciDAC) Principal Investigator Paul Bonoli Participating Organizations Massachusetts Institute of Technology, Princeton Plasma Physics Laboratory, Oak Ridge National Laboratory,

  1. ORISE: Postdoctoral Research Experiences - Dr. David Mebane

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

    As some scientists turn to solar and wind energy to ... David Mebane looks to improve current energy technologies to ... for coal mining and production, Mebane participated as ...

  2. EM Update Presentation by David Huizenga

    Office of Environmental Management (EM)

    EM Program Update EM Site-Specific Advisory Board Chairs' Meeting October 2, 2012 David Huizenga Senior Advisor for Environmental Management www.em.doe.gov safety performance ...

  3. David W Johnson | Princeton Plasma Physics Lab

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

    W Johnson Principal Research Physicist, Head, ITER Fabrication David Johnson is a ... (NSTX) projects, and was the Work Breakdown Structure Team Leader for US ITER Diagnostics. ...

  4. David G. Frantz | Department of Energy

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

    David Frantz is the Deputy Director of LPO, overseeing application review, due diligence, negotiation, environmental compliance and performance tracking. Prior to LPO, Mr. Frantz ...

  5. David A. Wark | Inventors | GE Global Research

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

    By David Wark Alloys for Bond Coatings and Articles Incorporating the Same TitaniQ: A Titanium-in-Quartz Geothermometer Grain-Scale Permeabilities of Texturally Equilibrated, ...

  6. David J. Gross and the Strong Force

    Office of Scientific and Technical Information (OSTI)

    published their proposal simultaneously with H. David Politzer, a graduate student at Harvard University who independently came up with the same idea. ... The discovery of Gross,...

  7. David A Gates | Princeton Plasma Physics Lab

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

    Physicist, Stellerator Physics Lead, Advanced Projects Division, Science Focus Group Leader for Macroscopic Stability David Gates is a principal research physicist for the...

  8. High Performance Builder Spotlight: David Weekley Homes

    SciTech Connect (OSTI)

    2011-01-01

    This fact sheet gives an overview of David Weekley Homes building approach, which qualifed over 1,100 homes in DOE's Builders Challenge in 2010.

  9. David W. Mulder, Ph.D. | Bioenergy | NREL

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

    W. Mulder David W. Mulder, Ph.D. Research Scientist, Scientist III David.Mulder@nrel.gov | 303-384-7486 Research Interests David W. Mulder's research interests revolve around ...

  10. Aligning Contract Incentives & Contract Mgt Trends - David Leotta...

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

    Aligning Contract Incentives & Contract Mgt Trends - David Leotta, Director, Office of Contract Management, OAPM Aligning Contract Incentives & Contract Mgt Trends - David Leotta, ...

  11. NREL: Biomass Research - David A. Sievers, P.E.

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

    Photo of David Sievers David Sievers is an engineer in the Bioprocess Integration R&D ... Education and Training Licensed Professional Engineer, Colorado B.S., Chemical ...

  12. Remarks by David Sandalow, Assistant Secretary of Energy for...

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

    Remarks by David Sandalow, Assistant Secretary of Energy for Policy and International Affairs, to the Detroit Economic Club National Summit Remarks by David Sandalow, Assistant...

  13. Sandia Energy - CRF Researchers Awarded David A. Shirley Award...

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

    David Osborn (Sandia). Craig Taatjes and David Osborn (both in 8353), along with collaborators at the universities of Manchester and Bristol, were given this LBNL Advanced Light...

  14. David Prendergast | Center for Gas SeparationsRelevant to Clean...

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

    David Prendergast Previous Next List Prendergast David Prendergast Director of the Theory of Nanostructured Materials Facility, The Molecular Foundry, Lawrence Berkeley National...

  15. City of David City, Nebraska (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    David City, Nebraska (Utility Company) Jump to: navigation, search Name: David City Municipal Power Place: Nebraska Phone Number: 402.367.3135 Website: davidcityne.comutilities...

  16. EECBG Success Story: David Crockett, Chattanooga's Green Frontiersman...

    Energy Savers [EERE]

    David Crockett, Chattanooga's Green Frontiersman EECBG Success Story: David Crockett, Chattanooga's Green Frontiersman June 11, 2010 - 5:15pm Addthis Crockett has seen Chattanooga ...

  17. Nuclear energy field fascinates David Parkinson, chemical engineer

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

    Nuclear energy field fascinates David Parkinson, chemical engineer Nuclear energy field fascinates David Parkinson, chemical engineer Chemical engineer undergraduate designs and ...

  18. Postdoctoral Research Awards Annual Research Meeting: David Lampert...

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

    David Lampert Postdoctoral Research Awards Annual Research Meeting: David Lampert Poster Presentation at 2012 EERE Annual Research Meeting, Postdoctoral Research Awards, from the ...

  19. Quercus Trust David Gelbaum Private investor | Open Energy Information

    Open Energy Info (EERE)

    Quercus Trust David Gelbaum Private investor Jump to: navigation, search Name: Quercus Trust David Gelbaum (Private investor) Place: Newport Beach, California Zip: 92660 Product:...

  20. David E. Scott | Savannah River Ecology Laboratory

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

    Scott Curriculum Vitae Faculty & Scientists SREL Home David E. Scott Savannah River Ecology Laboratory P O Drawer E, Aiken, SC 29802 (803) 725-5747 office (803) 725-3309 fax...

  1. USAEC, David Lilienthal and Oak Ridge

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

    ... David Lilienthal had been named one of three directors of the newly formed Tennessee Valley Authority in 1933. Recall the first dam built by TVA was Norris Dam on the Clinch River. ...

  2. A Message from David Friedman | Department of Energy

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

    A Message from David Friedman A Message from David Friedman June 27, 2016 - 4:39pm Addthis David Friedman David Friedman Assistant Secretary for Energy Efficiency and Renewable Energy (Acting) Learn more about David Friedman In my new capacity as acting assistant secretary, it is my pleasure to kick off this latest issue of Amped Up! Magazine. I am humbled by the opportunity to lead this tremendous organization as we continue to support a clean energy revolution that is strengthening our economy

  3. A BARE MOLECULAR CLOUD AT z {approx} 0.45

    SciTech Connect (OSTI)

    Jones, Therese M.; Misawa, Toru; Charlton, Jane C.; Mshar, Andrew C.; Ferland, Gary J. E-mail: misawatr@shinshu-u.ac.j E-mail: acmshar@gmail.co

    2010-06-01

    Several neutral species (Mg I, Si I, Ca I, Fe I) have been detected in a weak Mg II absorption line system (W{sub r} (2796) {approx} 0.15 A) at z {approx} 0.45 along the sightline toward HE0001-2340. These observations require extreme physical conditions, as noted in D'Odorico. We place further constraints on the properties of this system by running a wide grid of photoionization models, determining that the absorbing cloud that produces the neutral absorption is extremely dense ({approx}100-1000 cm{sup -3}), cold (<100 K), and has significant molecular content ({approx}72%-94%). Structures of this size and temperature have been detected in Milky Way CO surveys and have been predicted in hydrodynamic simulations of turbulent gas. In order to explain the observed line profiles in all neutral and singly ionized chemical transitions, the lines must suffer from unresolved saturation and/or the absorber must partially cover the broad emission line region of the background quasar. In addition to this highly unusual cloud, three other ordinary weak Mg II clouds (within densities of {approx}0.005 cm{sup -3} and temperatures of {approx}10, 000 K) lie within 500 km s{sup -1} along the same sightline. We suggest that the 'bare molecular cloud', which appears to reside outside of a galaxy disk, may have had in situ star formation and may evolve into an ordinary weak Mg II absorbing cloud.

  4. David Willets Visits JCESR - Joint Center for Energy Storage Research

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

    19, 2014, Videos David Willets Visits JCESR willets-audio UK Universities and Science Minister, David Willetts, visited Argonne National Laboratory and the Joint Center for Energy Storage Research (JCESR).

  5. PARC Seminar Series featuring David Tiede | Photosynthetic Antenna...

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

    PARC Seminar Series featuring David Tiede PARC Seminar Series featuring David Tiede Wiring Photosynthetic and Redox Proteins for Solar Fuels Function April 21, 2015 - 11:00am Rodin...

  6. Sandia researcher David Osborn elected physics fellow

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

    researcher David Osborn elected physics fellow - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management

  7. Microsoft PowerPoint - 2 David Kosson

    Office of Environmental Management (EM)

    Put Title Here Put SubTitle Here David S. Kosson 1 , Charles W. Powers 1 , Jennifer Salisbury, Craig H. Benson 2 , Kevin G. Brown 1 , Lisa Bliss 1 , Joanna Burger 3 , Bethany Burkhardt 1 , James H. Clarke 1 , Allen G. Croff 1 , Lyndsey Fern Fyffe 1 , Michael Gochfeld 3 , Michael Greenberg 3 , Kathryn A. Higley 4 , George M. Hornberger 1 , Kimberly L. Jones 5 , Steven L. Krahn 1 , Eugene J. LeBoeuf 1 , Henry S. Mayer 3 , Jane B. Stewart 6 , Richard B. Stewart 6 , and Hamp Turner 1 1 Vanderbilt

  8. Meet CMI Researcher David Reed | Critical Materials Institute

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

    David Reed CMI researcher David Reed is the principal investigator for the CMI project bioleaching for recovery of recycled rare earth elements. CMI Researcher David Reed is the PI for project 3.2.5 Bioleaching for Recovery of Recycled REE. The objective of this project is to develop and deploy a biological strategy for recovery of rare earth elements from recyclable materials. His collaborators include Vicki Thompson, Dayna Daubaras, and Debra Bruhn at Idaho National Laboratory and Yongqin Jiao

  9. 2013 Federal Energy and Water Management Award Winner David Morin |

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

    Department of Energy David Morin 2013 Federal Energy and Water Management Award Winner David Morin fewm13_morin_highres.pdf (1.78 MB) fewm13_morin.pdf (374.42 KB) More Documents & Publications 2013 Federal Energy and Water Management Award Winner David Morin Comprehensive Energy Program at Patrick Air Force Base Set to Exceed Energy Goals 2013 Federal Energy and Water Management Award Winners Chris Manis, Randy Monohan, Laura Nelson, Mark Rodriguez, and Mick Wasco

  10. Update from the Director: David Conrad | Department of Energy

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

    Update from the Director: David Conrad Update from the Director: David Conrad March 5, 2015 - 9:41am Addthis David F. Conrad David F. Conrad Deputy Director, Office of Indian Energy Policy and Programs We wrapped up 2014 with an outstanding dialogue between DOE Secretary of Energy Dr. Ernest Moniz and the tribal leaders of our DOE-sponsored energy working groups. Also at the end of the year, the new Under Secretary for Science and Energy, Dr. Franklin Orr, was sworn in to oversee several offices

  11. 2013 Federal Energy and Water Management Award Winner David Morin

    Office of Energy Efficiency and Renewable Energy (EERE)

    Poster features 2013 Federal Energy and Water Management Award winner David Morin of the U.S. Air Force's Laughlin Air Force Base in Texas.

  12. Written Statement of David Huizenga Senior Advisor for Environmental...

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

    House of Representatives (May 9, 2013) Written Statement of David Huizenga Senior Advisor for Environmental Management United States Department of Energy Before the Subcommittee on ...

  13. Senior Advisor David Huizenga's Written Statement Before the...

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

    Written Statement of David Huizenga, Senior Advisor for Environmental Management, United States Department of Energy, before the Subcommittee on Energy and Water Development ...

  14. H. David Politzer, Asymptotic Freedom, and Strong Interaction

    Office of Scientific and Technical Information (OSTI)

    Resources with Additional Information H. David Politzer Photo Credit: California Institute ... professor of theoretical physics at the California Institute of Technology, shares the ...

  15. CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone

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

    PROFESSIONAL SCIENTIFIC TECHNICAL CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone (510) 486-4506 Email dtchen@lbl.gov Engineering Services 541330 Drafting Services ...

  16. David Turner to Retire from NERSC User Services Group

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

    David Turner to Retire from NERSC User Services Group David Turner to Retire from NERSC User Services Group June 17, 2015 davidturnernow2 David Turner in the NERSC machine room, in front of Carver, circa 2015 Long-time User Services Group consultant David Turner is hanging up his headset after 17 years at NERSC. His love of math, science and computers began when he was still in high school, and it has not waned over the years. Here Turner, whose last official day is June 26, talks about how he

  17. Statement of David Sandalow Assistant Secretary of Energy for...

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

    Assistant Secretary of Energy for Policy and International Affairs Before the U.S.-China Economic and Security Review Commission Statement of David Sandalow Assistant...

  18. Statement of David Sandalow, Assistant Secretary of Energy for...

    Energy Savers [EERE]

    Energy and the Environment, Committee on Science, Space, and Technology, United States House of Representatives Statement of David Sandalow, Assistant Secretary of Energy for...

  19. Statement of David Sandalow, Assistant Secretary of Energy for...

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

    Energy and Natural Resources Committee Remarks by David Sandalow, Assistant Secretary of Energy for Policy and International Affairs, to the Detroit Economic Club National Summit...

  20. David Hopkinson | Center for Gas SeparationsRelevant to Clean...

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

    Previous Next List Hopkinson David Hopkinson Carbon Capture Technical Portfolio Lead, National ... Hopkinson group is developing and characterizing MOFpolymer mixed-matrix membranes.

  1. Sandia Energy - Introduction of Prof. David Kelley and UC Merced...

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

    to SSLS Home Solid-State Lighting Partnership News Energy Efficiency News & Events Introduction of Prof. David Kelley and UC Merced to SSLS Previous Next Introduction of Prof....

  2. Statement of David Sandalow, Assistant Secretary of Energy for...

    Energy Savers [EERE]

    Energy, Committee on Energy and Natural Resources, United States Senate Statement of David Sandalow, Assistant Secretary of Energy for Policy and International Affairs, Before the...

  3. St. David, Arizona: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    David, Arizona: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 31.9042517, -110.2142399 Show Map Loading map... "minzoom":false,"mappingservic...

  4. David Lee, Douglas Osheroff, Superfluidity, and Helium 3

    Office of Scientific and Technical Information (OSTI)

    David M. Lee and Douglas D. Osheroff received the 1996 Nobel Prize in Physics for 'their ... University includes " Low Temperature Physics: Normal and superfluid 3He, studies of ...

  5. From: David Schaefer To: Congestion Study Comments Subject:

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

    I urge you to consider these reasons and please do not establish any National Interest Energy Transmission Corridors. Thank you, David Schaefer 26503 State Hwy 6 East Kirksville, ...

  6. From: David Newacheck To: Congestion Study Comments Date:

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

    I urge you to consider these reasons and please do not establish any National Interest Energy Transmission Corridors. Thank you. Very Respectfully; David A. Newacheck 18838 ...

  7. Profiles in Leadership: David Mohler, Deputy Assistant Secretary...

    Energy Savers [EERE]

    Deputy Assistant Secretary for Clean Coal and Carbon Management Profiles in Leadership: David Mohler, Deputy Assistant Secretary for Clean Coal and Carbon Management August 6, 2015 ...

  8. David Telles wins NNSA Security Professional of the Year award

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

    David Telles wins NNSA Security Professional of the Year award The award recognizes one federal employee and one contractor employee whose contributions to the security programs ...

  9. Written Statement of David Huizenga Senior Advisor for Environmental...

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

    Senior Advisor David Huizenga represented the Department of Energy's (DOE) Office of Environmental Management (EM) before the Subcommittee on Strategic Forces Armed Services ...

  10. David Muller > Research Thrust Leader - Complex OxidesProfessor...

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

    David Muller Research Thrust Leader - Complex Oxides Professor Applied and Engineering Physics Research Group Webpage dm24@cornell.edu He joined the Applied and Engineering Physics...

  11. MEMORANDUM TO: File FROM: David R. Hill RE: Meeting Concerning...

    Office of Environmental Management (EM)

    MEMORANDUM TO: File FROM: David R. Hill RE: Meeting Concerning Potential Test Procedures ... with DOE officials concerning potential test procedures and energy conservation ...

  12. DAVID Fuel Cell Components SL | Open Energy Information

    Open Energy Info (EERE)

    manufacture and marketing of components and devices for PEM fuel cells, direct methanol fuel cells (DMFC) and fuel reformers. References: DAVID Fuel Cell Components SL1...

  13. Systems and Professional Development - David Brown, Director, Systems &

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

    Professional Development, OAPM | Department of Energy Systems and Professional Development - David Brown, Director, Systems & Professional Development, OAPM Systems and Professional Development - David Brown, Director, Systems & Professional Development, OAPM Topics Discussed: Importance of Contracting in DOE Compared with Other Civilian Agencies Professional Workforce Workload DOE's Certified Workforce Acquisition Workload The Holy Grail of Contract and Project Management More...

  14. 5 Questions for a Scientist: Materials Engineer David Forrest

    Office of Energy Efficiency and Renewable Energy (EERE)

    David Forrest is one of many engineers at the Energy Department who are bringing innovative materials processes to commercial scale and helping manufacturers develop clean energy technologies that save energy, increase American competitiveness, and cut carbon pollution. Learn more about David, who was recently selected as a fellow by ASM International (formerly known as American Society for Metals) for his outstanding technical leadership.

  15. David K. Garman Sworn in as Under Secretary of Energy | Department...

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

    David K. Garman Sworn in as Under Secretary of Energy David K. Garman Sworn in as Under Secretary of Energy June 23, 2005 - 1:39pm Addthis WASHINGTON, DC - David K. Garman was ...

  16. TBH-0046- In the Matter of David K. Isham

    Broader source: Energy.gov [DOE]

    David Isham filed a retaliation complaint (the Part 708 Complaint or the Complaint) under the Department of Energy (DOE) Contractor Employee Protection Program. 10 C.F.R. Part 708 (2007). As...

  17. TBH-0087- In the Matter of David P. Sanchez

    Broader source: Energy.gov [DOE]

    This Decision will consider a Motion to Dismiss filed by Los Alamos National Laboratory (“LANL” or “the Respondent”). LANL seeks dismissal of a pending complaint filed by David P. Sanchez (“Mr....

  18. TBZ-0087- In the Matter of David P. Sanchez

    Broader source: Energy.gov [DOE]

    This Decision will consider a Motion to Dismiss filed by Los Alamos National Laboratory (“LANL” or “the Respondent”). LANL seeks dismissal of a pending complaint filed by David P. Sanchez (“Mr....

  19. VWX-0001- in the Matter of David Ramirez

    Broader source: Energy.gov [DOE]

    On December 2, 1994, the Deputy Secretary of Energy issued a Final Decision and Order in a case involving a "whistleblower" complaint filed by David Ramirez ("Ramirez") under the Department of...

  20. Shane Canon, David Skinner and Jay Srinivasan! NUG2013

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

    Canon, David Skinner and Jay Srinivasan NUG2013 NERSC and HTC --- 1 --- February 1 2, 2 013 Science Strategies @ NERSC Science at Scale P etascale t o E xascale Science through...

  1. EECBG Success Story: David Crockett, Chattanooga’s Green Frontiersman

    Broader source: Energy.gov [DOE]

    David Crockett is no stranger to Chattanooga, Tennessee. A three-term city councilman, former chairman of the council and President of the Chattanooga Institute for Sustainability, he knows his way around the city government. Learn more.

  2. David Turner! NERSC User Services Group NERSC User Environment

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

    User Environment --- 1 --- September 10, 2013 Overview * Login N odes, F ile S ystems, a nd D ot F iles - David T urner * So;ware M odules - Doug J acobsen * Compilers - Mike S ...

  3. David Turner! NERSC User Services Group NERSC Data Management

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

    Data Management --- 1 --- September 10, 2013 Overview * File S ystem R eview, D ata S haring, D ata T ransfer - David T urner * GlobusOnline D emo - Shreyas C holia * HPSS - Lisa G ...

  4. Physics Nobel winner David Gross gives public lecture at Jefferson...

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

    Nobel winner David Gross gives public lecture at Jefferson Lab on June 12 (Monday) Physics ... "The Coming Revolutions in Fundamental Physics" beginning at 8 p.m. at Jefferson Lab on ...

  5. From: Jay Caspary To: Congestion Study Comments Cc: Meyer, David...

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

    Jay Caspary To: Congestion Study Comments Cc: Meyer, David; Lanny Nickell Subject: SPP Staff Comments on DOE Congestion Study Date: Monday, October 20, 2014 4:32:04 PM Attachments: ...

  6. LWA-0002- In the Matter of David Ramirez

    Broader source: Energy.gov [DOE]

    This Decision involves a complaint filed by David Ramirez ("Ramirez" or "the complainant") under the Department of Energy's Contractor Employee Protection Program, 10 C.F.R. Part 708. Ramirez...

  7. TBA-0066- In the Matter of David L. Moses

    Broader source: Energy.gov [DOE]

    This Decision considers an Appeal of an Initial Agency Decision (IAD) issued on September 3, 2008, involving a Complaint of Retaliation filed by David L. Moses (also referred to as the employee or...

  8. TBH-0066- In the Matter of David L. Moses

    Broader source: Energy.gov [DOE]

    This Initial Agency Decision involves a whistleblower complaint filed by Dr. David L. Moses (“Moses” or “the complainant”) under the Department of Energy (DOE) Contractor Employee Protection...

  9. Complex Oxides - Research Thrust Leader > David Muller > Leadership...

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

    David Muller dm24@cornell.edu He joined the Applied and Engineering Physics faculty at Cornell University in July 2003, is a graduate of the University of Sydney and completed his...

  10. VWD-0003- In the Matter of David M. Turner

    Broader source: Energy.gov [DOE]

    This decision will consider two Motions for Discovery filed by David M Turner with the Office of Hearings and Appeals (OHA) of the Department of Energy (DOE) on June 8, 1999, as amended on June 22,...

  11. VWD-0005- In the Matter of David M. Turner

    Broader source: Energy.gov [DOE]

    This decision will consider two Motions for Discovery filed by David M Turner with the Office of Hearings and Appeals (OHA) of the Department of Energy (DOE) on June 8, 1999, as amended on June 22,...

  12. Docker File System Isolation By Darrin Schmitz David Huff Destiny...

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

    Docker File System Isolation By Darrin Schmitz David Huff Destiny Velasquez 1 LA-UR-15-25911 Specifications * HP ProLiant DL380p Gen8 servers * Head node has 32 cores and 32 GB RAM...

  13. Postdoctoral Research Awards Annual Research Meeting: David Lampert |

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

    Department of Energy David Lampert Postdoctoral Research Awards Annual Research Meeting: David Lampert Poster Presentation at 2012 EERE Annual Research Meeting, Postdoctoral Research Awards, from the U.S. Department of Energy. lampertd_2012poster.pdf (414.42 KB) More Documents & Publications EERE Postdoctoral Research Awards Annual Meeting Posters 2015 Peer Review Presentations-Sustainability and Strategic Analysis 2013 Peer Review Presentations-Analysis and Sustainability

  14. Senate Confirms DOE Nominees Daniel Poneman, David Sandalow, Kristina

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

    Johnson, Steve Koonin, Scott Harris, and Ines Triay | Department of Energy Confirms DOE Nominees Daniel Poneman, David Sandalow, Kristina Johnson, Steve Koonin, Scott Harris, and Ines Triay Senate Confirms DOE Nominees Daniel Poneman, David Sandalow, Kristina Johnson, Steve Koonin, Scott Harris, and Ines Triay May 21, 2009 - 12:00am Addthis WASHINGTON, D.C. -- This week, the Senate confirmed six DOE nominees, including Deputy Secretary Daniel Poneman, Under Secretary for Energy Kristina

  15. Aligning Contract Incentives & Contract Mgt Trends - David Leotta,

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

    Director, Office of Contract Management, OAPM | Department of Energy Aligning Contract Incentives & Contract Mgt Trends - David Leotta, Director, Office of Contract Management, OAPM Aligning Contract Incentives & Contract Mgt Trends - David Leotta, Director, Office of Contract Management, OAPM The Deputy Secretary issued December 2012 memo: "Aligning Contract Incentives" The purpose of the memo: Align Contractor Incentives with taxpayer interests Hold each party to the

  16. W. David Montgomery Senior Vice President NERA Economic Consulting

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

    W. David Montgomery Senior Vice President NERA Economic Consulting 1255 23rd Street NW, Suite 600 Washington, DC 20037 Tel: 202-466-9294 Fax: 202-466-3605 w.david.Montgomery@NERA.com www.nera.com Office of Fossil Energy U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 December 3, 2012 Attn: Deputy Assistant Secretary Christopher Smith Dear Mr. Smith I am transmitting with this letter a clean copy of NERA's report on the macroeconomic impacts of LNG exports from the

  17. Richard Gerber, Helen He, Zhengji Zhao, David Turner NUG Monthly

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

    Helen He, Zhengji Zhao, David Turner NUG Monthly Meeting --- 1 --- NUG M onthly M ee-ng November 13, 2014 Agenda * Tuesday's Q uarterly M aintenance * Hopper and Edison Status Updates * NUGEX Elec-ons * NUG 2 015 M ee-ng P lanning * Training U pdate * User Survey * Queue C ommiJee T opics --- 2 --- Quarterly Maintenance Summary" David Turner, NERSC User Services --- 3 --- Maintenance: November 11, 2014 * Quarterly m aintenance - Originally t o a ccommodate J GI s equencer o pera;ons -

  18. Alaska Energy Champion: David Pelunis-Messier | Department of Energy

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

    David Pelunis-Messier Alaska Energy Champion: David Pelunis-Messier March 11, 2015 - 1:03pm Addthis Gary Williams, Tribal Administrator for the Organized Village of Kake, Jay Peltz, Peltz Power solar installer, and Dave Pelunis-Messier are finishing up the racking for a dual axis tracking array installed in Kake, Alaska, in 2012. Gary Williams, Tribal Administrator for the Organized Village of Kake, Jay Peltz, Peltz Power solar installer, and Dave Pelunis-Messier are finishing up the racking for

  19. Acting Under Secretary of Energy David Sandalow's Remarks at the

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

    U.S.-Brazil Wind Workshop - As Prepared for Delivery | Department of Energy Under Secretary of Energy David Sandalow's Remarks at the U.S.-Brazil Wind Workshop - As Prepared for Delivery Acting Under Secretary of Energy David Sandalow's Remarks at the U.S.-Brazil Wind Workshop - As Prepared for Delivery August 29, 2012 - 6:26pm Addthis Wind power has arrived. For many years, widespread wind power was a distant dream. No longer. Today, wind power is shaping energy markets around the world.

  20. A CENSUS OF MID-INFRARED-SELECTED ACTIVE GALACTIC NUCLEI IN MASSIVE GALAXY CLUSTERS AT 0 {approx}< z {approx}< 1.3

    SciTech Connect (OSTI)

    Tomczak, Adam R.; Tran, Kim-Vy H.; Saintonge, Amelie

    2011-09-01

    We conduct a deep mid-infrared (mid-IR) census of nine massive galaxy clusters at (0 < z < 1.3) with a total of {approx}1500 spectroscopically confirmed member galaxies using Spitzer/IRAC photometry and established mid-IR color selection techniques. Of the 949 cluster galaxies that are detected in at least three of the four IRAC channels at the {>=}3{sigma} level, we identify 12 that host mid-IR-selected active galactic nuclei (IR-AGNs). To compare the IR-AGNs across our redshift range, we define two complete samples of cluster galaxies: (1) optically selected members with rest-frame V{sub AB} magnitude < - 21.5 and (2) mid-IR-selected members brighter than (M*{sub 3.6} + 0.5), i.e., essentially a stellar mass cut. In both samples, we measure f{sub IR-AGN} {approx} 1% with a strong upper limit of {approx}3% at z < 1. This uniformly low IR-AGN fraction at z < 1 is surprising given that the fraction of 24 {mu}m sources in the same galaxy clusters is observed to increase by about a factor of four from z {approx} 0 to z {approx} 1; this indicates that most of the detected 24 {mu}m flux is due to star formation. Only in our single galaxy cluster at z = 1.24 is the IR-AGN fraction measurably higher at {approx}15% (all members; {approx}70% for late-types only). In agreement with recent studies, we find that the cluster IR-AGNs are predominantly hosted by late-type galaxies with blue optical colors, i.e., members with recent/ongoing star formation. The four brightest IR-AGNs are also X-ray sources; these IR+X-ray AGNs all lie outside the cluster core (R{sub proj} {approx}> 0.5 Mpc) and are hosted by highly morphologically disturbed members. Although our sample is limited, our results suggest that f{sub IR-AGN} in massive galaxy clusters is not strongly correlated with star formation at z < 1 and that IR-AGNs have a more prominent role at z {approx}> 1.

  1. CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone

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

    PROFESSIONAL / SCIENTIFIC / TECHNICAL CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone (510) 486-4506 Email dtchen@lbl.gov Engineering Services 541330 Drafting Services 541340 Geophysical Surveying and Mapping Services 541360 Testing Laboratories 541380 Custom Computer Programming Services 541511 Computer Systems Design Services 541512 Other Computer Related Services 541519 Administrative Management and General Management Consulting Services 541611 Other Scientific and Technical

  2. GOODS CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone

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

    GOODS CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone (510) 486-4506 Email dtchen@lbl.gov Photographic Equipment and Supplies Merchant Wholesalers 423410 Computer and Computer Peripheral Equipment and Software Merchant Wholesalers 423430 Other Commercial Equipment Merchant Wholesalers 423440 Other Professional Equipment and Supplies Merchant Wholesalers 423490 Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers 423610 Electrical and

  3. MANUFACTURING CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen

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

    MANUFACTURING CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone (510) 486-4506 Email dtchen@lbl.gov Industrial Gas Manufacturing 325120 All Other Basic Inorganic Chemical Manufacturing 325188 Plastics Material and Resin Manufacturing 325211 Explosives Manufacturing 325920 All Other Plastics Product Manufacturing 326199 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding 331491 Fabricated Structural Metal Manufacturing 332312 Metal Tank (Heavy Gauge)

  4. EVMS - FROM DATA TO DIAGNOSIS - A DoD Perspective - David Kester...

    Office of Environmental Management (EM)

    EVMS - FROM DATA TO DIAGNOSIS - A DoD Perspective - David Kester, Defense Contract Management Agency EVMS - FROM DATA TO DIAGNOSIS - A DoD Perspective - David Kester, Defense ...

  5. S3TEC seminar, Prof David Clarke | Solid State Solar Thermal Energy

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

    Conversion seminar, Prof David Clarke Seminar Wednesday Dec 7, 2016 12:00pm Location: 5-134

  6. ENVIRONMENTAL EFFECTS ON STAR FORMATION ACTIVITY AT z {approx} 0.9 IN THE COSMOS FIELD

    SciTech Connect (OSTI)

    Kajisawa, M.; Shioya, Y.; Taniguchi, Y.; Nagao, T.; Matsubayashi, K.; Riguccini, L.; Aida, Y.; Ideue, Y.; Murayama, T.

    2013-05-01

    We investigated the fraction of [O II] emitters in galaxies at z {approx} 0.9 as a function of the local galaxy density in the Hubble Space Telescope (HST) COSMOS 2 deg{sup 2} field. [O II] emitters are selected by the narrowband excess technique with the NB711-band imaging data taken with Suprime-Cam on the Subaru telescope. We carefully selected 614 photo-z-selected galaxies with M{sub U3500} < -19.31 at z = 0.901 - 0.920, which includes 195 [O II] emitters, to directly compare the results with our previous study at z {approx} 1.2. We found that the fraction is almost constant at 0.3 Mpc{sup -2} < {Sigma}{sub 10th} < 10 Mpc{sup -2}. We also checked the fraction of galaxies with blue rest-frame colors of NUV - R < 2 in our photo-z-selected sample, and found that the fraction of blue galaxies does not significantly depend on the local density. On the other hand, the semi-analytic model of galaxy formation predicted that the fraction of star-forming galaxies at z {approx} 0.9 decreases with increasing projected galaxy density even if the effects of the projection and the photo-z error in our analysis were taken into account. The fraction of [O II] emitters decreases from {approx}60% at z {approx} 1.2 to {approx}30% at z {approx} 0.9 independent of galaxy environment. The decrease of the [O II] emitter fraction could be explained mainly by the rapid decrease of star formation activity in the universe from z {approx} 1.2 to z {approx} 0.9.

  7. CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone

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

    ADMINISTATIVE / WASTE / REMEDIATION CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone (510) 486-4506 Email dtchen@lbl.gov Security Systems Services (except Locksmiths) 561621 Hazardous Waste Treatment and Disposal 562211 Remediation Services 562910 LAWRENCE LIVERMORE LAB POC Jill Swanson Telephone (925) 423-4535 Email swanson6@llnl.gov Security Systems Services (except Locksmiths) 561621 Hazardous Waste Treatment and Disposal 562211 Remediation Services 562910 COLORADO GOLDEN FIELD

  8. CONSTRUCTION CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen

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

    CONSTRUCTION CALIFORNIA LAWRENCE BERKELEY LAB POC David Chen Telephone (510) 486-4506 Email dtchen@lbl.gov All Other Specialty Trade Contractors 238990 LAWRENCE LIVERMORE LAB POC Jill Swanson Telephone (925) 423-4535 Email swanson6@llnl.gov All Other Specialty Trade Contractors 238990 COLORADO GOLDEN FIELD OFFICE POC Karen Downs Telephone (720) 356-1269 Email karen.downs@go.doe.gov Industrial Building Construction 236210 Commercial and Institutional Building Construction 236220 Power and

  9. Mr. David B. B. Helfrey Guilfoil Petzell & Shoemake

    Office of Legacy Management (LM)

    Energy Washington, DC 20545 AUG 15 1988 Mr. David B. B. Helfrey Guilfoil Petzell & Shoemake Attorneys at Law 100 North Broadway St. Louis, Missouri 63102 Dear Mr. Helfrey: Enclosed please find two copies of the revised survey consent form for the radiological survey of that portion of the Spectrulite Consortium, Inc., site that was used by DOW Chemical for the processing of uranium metal. We have incorporated a modified version of the addendum that contained your requested changes into the

  10. David Telles wins NNSA Security Professional of the Year award

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

    Security Professional of the Year award David Telles wins NNSA Security Professional of the Year award The award recognizes one federal employee and one contractor employee whose contributions to the security programs within the NNSA enterprise exemplify the highest ideals of public service. May 7, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from

  11. From: Henderson, Michael To: Congestion Study Comments; Meyer, David

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

    Henderson, Michael To: Congestion Study Comments; Meyer, David Cc: Doe, Stanley; Kowalski, Richard; Paradise, Theodore Subject: DOE Congestion Study Date: Monday, October 20, 2014 10:12:20 AM Attachments: image001.png ISO New England is pleased to provide comments on the public draft of the DOE Congestion Study. The ISO appreciates DOE's consideration of several specific comments shown in red below. Comments: Figure ES-2: It is possible to identify the consistent impacts of a few specific

  12. Attn: David Meyer Office of Electricity Delivery and Energy Reliability

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

    October 20, 2014 Attn: David Meyer Office of Electricity Delivery and Energy Reliability U.S. Department of Energy; 1000 Independence Avenue SW Washington, DC 20585. RE: Comments on Draft National Electric Transmission Congestion Study Dear Mr. Meyer, On behalf of the American Wind Energy Association ("AWEA"), 1 we are submitting comments in response to the draft National Electric Transmission Congestion Study published August 19, 2014 (Draft NIETC Study). For the reasons set forth

  13. Physics Nobel winner David Gross gives public lecture at Jefferson Lab on

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

    June 12 (Monday) | Jefferson Lab Nobel winner David Gross gives public lecture at Jefferson Lab on June 12 (Monday) Physics Nobel winner David Gross gives public lecture at Jefferson Lab on June 12 (Monday) June 6, 2006 David Gross David Gross, Nobel Prize recipient and lecturer David Gross, Nobel Prize recipient is scheduled to give a free, public lecture titled "The Coming Revolutions in Fundamental Physics" beginning at 8 p.m. at Jefferson Lab on (Monday) June 12. He is one of

  14. Los Alamos' David Mascareñas receives Presidential Early Career Award

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

    Mascareñas receives Presidential Early Career Award Los Alamos' David Mascareñas receives Presidential Early Career Award David Mascareñas was named a recipient of the Presidential Early Career Award by President Obama last week. February 24, 2016 David Mascareñas David Mascareñas Contact Nick Njegomir Communications Office (505) 665-9394 Email "David is an innovative engineer whose creative thinking is essential to the continuing success of Los Alamos' national-security science

  15. A SPECTROSCOPIC SEARCH FOR LEAKING LYMAN CONTINUUM AT z {approx} 0.7

    SciTech Connect (OSTI)

    Bridge, Carrie R.; Siana, Brian; Salvato, Mara; Rudie, Gwen C.; Teplitz, Harry I.; Scarlata, Claudia; Colbert, James; Armus, Lee; Conselice, Christopher J.; Ferguson, Henry C.; Brown, Thomas M.; Giavalisco, Mauro; De Mello, Duilia F.; Gardner, Jonathan P.

    2010-09-01

    We present the results of rest-frame, UV slitless spectroscopic observations of a sample of 32 z {approx} 0.7 Lyman break galaxy (LBG) analogs in the COSMOS field. The spectroscopic search was performed with the Solar Blind Channel on the Hubble Space Telescope. We report the detection of leaking Lyman continuum (LyC) radiation from an active galactic nucleus-starburst composite. While we find no direct detections of LyC emission in the remainder of our sample, we achieve individual lower limits (3{sigma}) of the observed non-ionizing UV-to-LyC flux density ratios, f{sub {nu}} (1500 A)/f{sub {nu}}(830 A) of 20 to 204 (median of 73.5) and 378.7 for the stack. Assuming an intrinsic Lyman break of 3.4 and an intergalactic medium transmission of LyC photons along the line of sight to the galaxy of 85%, we report an upper limit for the relative escape fraction in individual galaxies of 0.02-0.19 and a stacked 3{sigma} upper limit of 0.01. We find no indication of a relative escape fraction near unity as seen in some LBGs at z {approx} 3. Our UV spectra achieve the deepest limits to date at any redshift for the escape fraction in individual sources. The contrast between these z {approx} 0.7 low escape fraction LBG analogs with z {approx} 3 LBGs suggests that either the processes conducive to high f{sub esc} are not being selected for in the z {approx}< 1 samples or the average escape fraction is decreasing from z {approx} 3 to z {approx} 1. We discuss possible mechanisms that could affect the escape of LyC photons.

  16. Mr. David Abney Chief Executive Officer Wise Services, Inc.

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

    9, 2014 Mr. David Abney Chief Executive Officer Wise Services, Inc. 1705 Guenther Road P.O. Box 159 Dayton, Ohio 45417 WEL-2014-04 Dear Mr. Abney: This letter refers to the U.S. Department of Energy's (DOE) investigation into the facts and circumstances associated with a track hoe operated by a Wise Services, Inc. (Wise Services) employee that struck a fiber optics line at the DOE Portsmouth Gaseous Diffusion Plant on November 8, 2012. The results of the investigation, conducted April 8-12,

  17. Helen He, David Turner, Richard Gerber NUG Monthly Meeting

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

    David Turner, Richard Gerber NUG Monthly Meeting --- 1 --- NUG M onthly M ee-ng July 1 0, 2 014 Zhengji Zhao " NERSC User Services Group" " NUG Monthly 2014 " July 10, 2014 Edison Issues Since the 6/25 upgrade Upgrades on Edison on 6/25 (partial list) * Maintenance/Configura-on M odifica-ons - set C DT 1 .16 t o d efault * Upgrades on Edison login nodes - SLES 1 1 S P3 - BCM 6 .1 - ESM---XX---3.0.0 - ESL---XC---2.2.0 * Upgrades on main frame - Sonexion u pdate_cs.1.3.1---007

  18. Request for Rehearing and Request for Interim Clarification by David K.

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

    Paylor, Director of the Virginia Department of Environmental Quality | Department of Energy Rehearing and Request for Interim Clarification by David K. Paylor, Director of the Virginia Department of Environmental Quality Request for Rehearing and Request for Interim Clarification by David K. Paylor, Director of the Virginia Department of Environmental Quality Docket No. EO-05-01: Pursuant to Federal Power Act § 313, David K. Paylor, Director of the Virginia Department of Environmental

  19. Supplemental Comments of David K. Paylor, Director of the Commonwealth of

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

    Virginia's Department of Environmental Quality | Department of Energy David K. Paylor, Director of the Commonwealth of Virginia's Department of Environmental Quality Supplemental Comments of David K. Paylor, Director of the Commonwealth of Virginia's Department of Environmental Quality Docket No. EO-05-01: Pursuant to Department of Energy ("DOE") Order No. 202-06-1 issued February 17,2006, David K. Paylor ("Director"), Director of the Virginia Department of Environmental

  20. David Blackwell's Forty Years in the Idaho Desert, The Foundation for

    Office of Scientific and Technical Information (OSTI)

    21st Century Geothermal Research (Journal Article) | SciTech Connect Journal Article: David Blackwell's Forty Years in the Idaho Desert, The Foundation for 21st Century Geothermal Research Citation Details In-Document Search Title: David Blackwell's Forty Years in the Idaho Desert, The Foundation for 21st Century Geothermal Research Dr. David Blackwell has had a profound influence on geo-thermal exploration and R&D in Idaho. Forty years have elapsed since the first Southern Methodist

  1. David Friedman: On the Future of Transportation and the LA Auto Show |

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

    Department of Energy David Friedman: On the Future of Transportation and the LA Auto Show David Friedman: On the Future of Transportation and the LA Auto Show Addthis Description David Friedman, Principal Deputy Assistant Secretary in the Energy Department's Office of Energy Efficiency & Renewable Energy (EERE), visited the L.A. Auto Show in November 2015. In this video interview, he shared his thoughts about transportation's future, the exciting technologies being introduced to the

  2. Microsoft PowerPoint - 9_David Thomas_WR Transparency at NMMSS...

    National Nuclear Security Administration (NNSA)

    HEU Downblending in Russia Under the 1993 U.S.-Russia HEU Purchase Agreement David Thomas NNSASAIC Russian HEU Down Blending Almost Complete The Agreement for the disposition...

  3. David Toledo > Graduate Student - Robinson Group > Researchers, Postdocs &

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

    Graduates > The Energy Materials Center at Cornell David Toledo Graduate Student - Robinson Group dpt34@cornell.edu

  4. David Young Named NNSA Security Professional of the Year | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration | (NNSA) David Young Named NNSA Security Professional of the Year November 20, 2008 Microsoft Office document icon NR-09-08 Young

  5. ECOR VAP Flux Corrections, Gap-filling, and Results David R....

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

    ECOR VAP Flux Corrections, Gap-filling, and Results David R. Cook, Meredith Franklin, Donna J. Holdridge Argonne National Laboratory, Argonne, IL This work was supported by the...

  6. Building America Whole-House Solutions for New Homes: David Weekely...

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

    David Weekley Homes, who worked with Building America research partner Building Science Corporation to design HERS-59 homes with advanced framed walls, airtight drywall, and rigid ...

  7. David Friedman: On the Future of Transportation and the L.A. Auto Show |

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

    Department of Energy David Friedman: On the Future of Transportation and the L.A. Auto Show David Friedman: On the Future of Transportation and the L.A. Auto Show January 6, 2016 - 8:45am Addthis A conversation with David Friedman, Principal Deputy Assistant Secretary, Office of Energy Efficiency & Renewable Energy on his visit to the L.A. Auto Show in November 2015 Drew Bittner Writer/Editor, Office of Energy Efficiency and Renewable Energy David Friedman, Principal Deputy Assistant

  8. HERSCHEL-ATLAS: TOWARD A SAMPLE OF {approx}1000 STRONGLY LENSED GALAXIES

    SciTech Connect (OSTI)

    Gonzalez-Nuevo, J.; Lapi, A.; Bressan, S.; Danese, L.; De Zotti, G.; Cai, Z.-Y.; Fan, L.; Fleuren, S.; Sutherland, W.; Negrello, M.; Baes, M.; Baker, A. J.; Clements, D. L.; Cooray, A.; Dannerbauer, H.; Dunne, L.; Dye, S.; Eales, S.; Frayer, D. T.; Harris, A. I.; and others

    2012-04-10

    While the selection of strongly lensed galaxies (SLGs) with 500 {mu}m flux density S{sub 500} > 100 mJy has proven to be rather straightforward, for many applications it is important to analyze samples larger than the ones obtained when confining ourselves to such a bright limit. Moreover, only by probing to fainter flux densities is it possible to exploit strong lensing to investigate the bulk of the high-z star-forming galaxy population. We describe HALOS (the Herschel-ATLAS Lensed Objects Selection), a method for efficiently selecting fainter candidate SLGs, reaching a surface density of {approx_equal} 1.5-2 deg{sup -2}, i.e., a factor of about 4-6 higher than that at the 100 mJy flux limit. HALOS will allow the selection of up to {approx}1000 candidate SLGs (with amplifications {mu} {approx}> 2) over the full H-ATLAS survey area. Applying HALOS to the H-ATLAS Science Demonstration Phase field ({approx_equal} 14.4 deg{sup 2}) we find 31 candidate SLGs, whose candidate lenses are identified in the VIKING near-infrared catalog. Using the available information on candidate sources and candidate lenses we tentatively estimate a {approx_equal} 72% purity of the sample. As expected, the purity decreases with decreasing flux density of the sources and with increasing angular separation between candidate sources and lenses. The redshift distribution of the candidate lensed sources is close to that reported for most previous surveys for lensed galaxies, while that of candidate lenses extends to redshifts substantially higher than found in the other surveys. The counts of candidate SLGs are also in good agreement with model predictions. Even though a key ingredient of the method is the deep near-infrared VIKING photometry, we show that H-ATLAS data alone allow the selection of a similarly deep sample of candidate SLGs with an efficiency close to 50%; a slightly lower surface density ({approx_equal} 1.45 deg{sup -2}) can be reached with a {approx}70% efficiency.

  9. INTERMEDIATE-MASS HOT CORES AT {approx}500 AU: DISKS OR OUTFLOWS?

    SciTech Connect (OSTI)

    Palau, Aina; Girart, Josep M.; Fuente, Asuncion; Alonso-Albi, Tomas; Fontani, Francesco; Sanchez-Monge, Alvaro; Boissier, Jeremie; Pietu, Vincent; Neri, Roberto; Busquet, Gemma; Estalella, Robert; Zapata, Luis A.; Zhang, Qizhou; Ho, Paul T. P.; Audard, Marc

    2011-12-20

    Observations with the Plateau de Bure Interferometer in the most extended configuration toward two intermediate-mass star-forming regions, IRAS 22198+6336 and AFGL 5142, reveal the presence of several complex organic molecules at {approx}500 AU scales, confirming the presence of hot cores in both regions. The hot cores are not rich in CN-bearing molecules, as often seen in massive hot cores, and are mainly traced by CH{sub 3}CH{sub 2}OH, (CH{sub 2}OH){sub 2}, CH{sub 3}COCH{sub 3}, and CH{sub 3}OH, with, additionally, CH{sub 3}CHO, CH{sub 3}OD, and HCOOD for IRAS 22198+6336, and C{sub 6}H and O{sup 13}CS for AFGL 5142. The emission of complex molecules is resolved down to sizes of {approx}300 and {approx}600 AU, for IRAS 22198+6336 and AFGL 5142, respectively, and most likely is tracing protostellar disks rather than flattened envelopes or toroids as is usually found. This is especially clear for the case of IRAS 22198+6336, where we detect a velocity gradient for all the mapped molecules perpendicular to the most chemically rich outflow of the region, yielding a dynamic mass {approx}> 4 M{sub Sun }. As for AFGL 5142, the hot core emission is resolved into two elongated cores separated {approx}1800 AU. A detailed comparison of the complex molecule peaks to the new CO (2-1) data and H{sub 2}O maser data from the literature suggests also that for AFGL 5142 the complex molecules are mainly associated with disks, except for a faint and extended molecular emission found to the west, which is possibly produced in the interface between one of the outflows and the dense surrounding gas.

  10. LOW-METALLICITY STAR FORMATION IN HIGH-REDSHIFT GALAXIES AT z {approx} 8

    SciTech Connect (OSTI)

    Taniguchi, Y.; Shioya, Y.; Trump, J. R.

    2010-12-01

    Based on the recent very deep near-infrared imaging of the Hubble Ultra Deep Field with WFC3 on the Hubble Space Telescope, five groups published the most probable samples of galaxies at z {approx} 8, selected by the so-called dropout method or photometric redshift; e.g., Y{sub 105}-dropouts (Y{sub 105} - J{sub 125} > 0.8). These studies are highly useful for investigating both the early star formation history of galaxies and the sources of cosmic re-ionization. In order to better understand these issues, we carefully examine whether there are low-z interlopers in the samples of z {approx} 8 galaxy candidates. We focus on the strong emission-line galaxies at z {approx} 2 in this paper. Such galaxies may be selected as Y{sub 105}-dropouts since the [O III] {lambda}5007 emission line is redshifted into the J{sub 125} band. We have found that the contamination from such low-z interlopers is negligibly small. Therefore, all objects found by the five groups are free from this type of contamination. However, it remains difficult to extract real z {approx} 8 galaxies because all the sources are very faint and the different groups have found different candidates. With this in mind, we construct a robust sample of eight galaxies at z {approx} 8 from the objects found by the five groups: each of these eight objects has been selected by at least two groups. Using this sample, we discuss their UV continuum slope. We also discuss the escape fraction of ionizing photons adopting various metallicities. Our analysis suggests that massive stars forming in low-metallicity gas (Z {approx} 5 x 10{sup -4} Z{sub sun}) can be responsible for the completion of cosmic re-ionization if the escape fraction of the ionizing continuum from galaxies is as large as 0.5, and this is consistent with the observed blue UV continua.

  11. CANDELS: THE PROGENITORS OF COMPACT QUIESCENT GALAXIES AT z {approx} 2

    SciTech Connect (OSTI)

    Barro, Guillermo; Faber, S. M.; Koo, David C.; Kocevski, Dale D.; Trump, Jonathan R.; Mozena, Mark; McGrath, Elizabeth; Cheung, Edmond; Fang, Jerome; Williams, Christina C.; Van der Wel, Arjen; Wuyts, Stijn; Bell, Eric F.; Croton, Darren J.; Ceverino, Daniel; Dekel, Avishai; Ashby, M. L. N.; Ferguson, Henry C.; Fontana, Adriano; and others

    2013-03-10

    We combine high-resolution Hubble Space Telescope/WFC3 images with multi-wavelength photometry to track the evolution of structure and activity of massive (M{sub *} > 10{sup 10} M{sub Sun }) galaxies at redshifts z = 1.4-3 in two fields of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey. We detect compact, star-forming galaxies (cSFGs) whose number densities, masses, sizes, and star formation rates (SFRs) qualify them as likely progenitors of compact, quiescent, massive galaxies (cQGs) at z = 1.5-3. At z {approx}> 2, cSFGs present SFR = 100-200 M{sub Sun} yr{sup -1}, yet their specific star formation rates (sSFR {approx} 10{sup -9} yr{sup -1}) are typically half that of other massive SFGs at the same epoch, and host X-ray luminous active galactic nuclei (AGNs) 30 times ({approx}30%) more frequently. These properties suggest that cSFGs are formed by gas-rich processes (mergers or disk-instabilities) that induce a compact starburst and feed an AGN, which, in turn, quench the star formation on dynamical timescales (few 10{sup 8} yr). The cSFGs are continuously being formed at z = 2-3 and fade to cQGs down to z {approx} 1.5. After this epoch, cSFGs are rare, thereby truncating the formation of new cQGs. Meanwhile, down to z = 1, existing cQGs continue to enlarge to match local QGs in size, while less-gas-rich mergers and other secular mechanisms shepherd (larger) SFGs as later arrivals to the red sequence. In summary, we propose two evolutionary tracks of QG formation: an early (z {approx}> 2), formation path of rapidly quenched cSFGs fading into cQGs that later enlarge within the quiescent phase, and a late-arrival (z {approx}< 2) path in which larger SFGs form extended QGs without passing through a compact state.

  12. CANDELS: THE CORRELATION BETWEEN GALAXY MORPHOLOGY AND STAR FORMATION ACTIVITY AT z {approx} 2

    SciTech Connect (OSTI)

    Lee, Bomee; Giavalisco, Mauro; Williams, Christina C.; Guo Yicheng; Faber, S. M.; Van der Wel, Arjen; Kocevski, Dale; Conselice, Christopher J.; Wuyts, Stijn; Dekel, Avishai; Kartaltepe, Jeyhan; Bell, Eric F.

    2013-09-01

    We discuss the state of the assembly of the Hubble sequence in the mix of bright galaxies at redshift 1.4 < z {<=} 2.5 with a large sample of 1671 galaxies down to H{sub AB} {approx} 26, selected from the HST/ACS and WFC3 images of the GOODS-South field obtained as part of the GOODS and CANDELS observations. We investigate the relationship between the star formation properties and morphology using various parametric diagnostics, such as the Sersic light profile, Gini (G), M{sub 20}, concentration (C), asymmetry (A), and multiplicity ({Psi}) parameters. Our sample clearly separates into massive, red, and passive galaxies versus less massive, blue, and star-forming ones, and this dichotomy correlates very well with the galaxies' morphological properties. Star-forming galaxies show a broad variety of morphological features, including clumpy structures and bulges mixed with faint low surface brightness features, generally characterized by disky-type light profiles. Passively evolving galaxies, on the other hand, very often have compact light distribution and morphology typical of today's spheroidal systems. We also find that artificially redshifted local galaxies have a similar distribution with z {approx} 2 galaxies in a G-M{sub 20} plane. Visual inspection between the rest-frame optical and UV images show that there is a generally weak morphological k-correction for galaxies at z {approx} 2, but the comparison with non-parametric measures show that galaxies in the rest-frame UV are somewhat clumpier than rest-frame optical. Similar general trends are observed in the local universe among massive galaxies, suggesting that the backbone of the Hubble sequence was already in place at z {approx} 2.

  13. TRACING THE STAR-FORMATION-DENSITY RELATION TO z {approx} 2

    SciTech Connect (OSTI)

    Quadri, Ryan F.; Williams, Rik J.; Franx, Marijn; Hildebrandt, Hendrik

    2012-01-10

    Recent work has shown that the star formation (SF) density relation-in which galaxies with low SF rates are preferentially found in dense environments-is still in place at z {approx} 1, but the situation becomes less clear at higher redshifts. We use mass-selected samples drawn from the UKIDSS Ultra-Deep Survey to show that galaxies with quenched SF tend to reside in dense environments out to at least z {approx} 1.8. Over most of this redshift range we are able to demonstrate that this SF-density relation holds even at fixed stellar mass. The environmental quenching of SF appears to operate with similar efficiency on all galaxies regardless of stellar mass. Nevertheless, the environment plays a greater role in the buildup of the red sequence at lower masses, whereas other quenching processes dominate at higher masses. In addition to a statistical analysis of environmental densities, we investigate a cluster at z = 1.6, and show that the central region has an elevated fraction of quiescent objects relative to the field. Although the uncertainties are large, the environmental quenching efficiency in this cluster is consistent with that of galaxy groups and clusters at z {approx} 0. In this work we rely on photometric redshifts and describe some of the pitfalls that large redshift errors can present.

  14. CANDELS: CONSTRAINING THE AGN-MERGER CONNECTION WITH HOST MORPHOLOGIES AT z {approx} 2

    SciTech Connect (OSTI)

    Kocevski, Dale D.; Faber, S. M.; Mozena, Mark; Trump, Jonathan R.; Koo, David C.; Nandra, Kirpal; Brusa, Marcella; Wuyts, Stijn; Rangel, Cyprian; Laird, Elise S.; Bell, Eric F.; Alexander, David M.; Bournaud, Frederic; Conselice, Christopher J.; Dekel, Avishai; and others

    2012-01-10

    Using Hubble Space Telescope/WFC3 imaging taken as part of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey, we examine the role that major galaxy mergers play in triggering active galactic nucleus (AGN) activity at z {approx} 2. Our sample consists of 72 moderate-luminosity (L{sub X} {approx} 10{sup 42-44} erg s{sup -1}) AGNs at 1.5 < z < 2.5 that are selected using the 4 Ms Chandra observations in the Chandra Deep Field South, the deepest X-ray observations to date. Employing visual classifications, we have analyzed the rest-frame optical morphologies of the AGN host galaxies and compared them to a mass-matched control sample of 216 non-active galaxies at the same redshift. We find that most of the AGNs reside in disk galaxies (51.4{sup +5.8}{sub -5.9}%), while a smaller percentage are found in spheroids (27.8{sup +5.8}{sub -4.6}%). Roughly 16.7{sup +5.3}{sub -3.5}% of the AGN hosts have highly disturbed morphologies and appear to be involved in a major merger or interaction, while most of the hosts (55.6{sup +5.6}{sub -5.9}%) appear relatively relaxed and undisturbed. These fractions are statistically consistent with the fraction of control galaxies that show similar morphological disturbances. These results suggest that the hosts of moderate-luminosity AGNs are no more likely to be involved in an ongoing merger or interaction relative to non-active galaxies of similar mass at z {approx} 2. The high disk fraction observed among the AGN hosts also appears to be at odds with predictions that merger-driven accretion should be the dominant AGN fueling mode at z {approx} 2, even at moderate X-ray luminosities. Although we cannot rule out that minor mergers are responsible for triggering these systems, the presence of a large population of relatively undisturbed disk-like hosts suggests that the stochastic accretion of gas plays a greater role in fueling AGN activity at z {approx} 2 than previously thought.

  15. THE DUST PROPERTIES OF z {approx} 3 MIPS-LBGs FROM PHOTOCHEMICAL MODELS

    SciTech Connect (OSTI)

    Fan, X. L. [School of Physics and Electronics Information, Hubei University of Education, 430205 Wuhan (China); Pipino, A. [Institut fur Astronomie, ETH Zurich, CH-8093 Zurich (Switzerland); Matteucci, F., E-mail: fan@oats.inaf.it [Dipartimento di Fisica, Sezione di Astronomia, Universit a di Trieste, via G.B. Tiepolo 11, I-34131 Trieste (Italy)

    2013-05-10

    The stacked spectral energy distribution (SED) 24 {mu}m Lyman break galaxies (MIPS-LBGs) detected by the Multiband Imaging Photometer for Spitzer (MIPS) is fitted by means of the spectrophotometric model GRASIL with an ''educated'' fitting approach which benefits from the results of chemical evolution models. The star formation rate-age-metallicity degeneracies of SED modeling are broken by using star formation history (SFH) and chemical enrichment history suggested by chemical models. The dust mass, dust abundance, and chemical pattern of elements locked in the dust component are also directly provided by chemical models. Using our new ''fitting'' approach, we derive the total mass M{sub tot}, stellar mass M{sub *}, gas mass M{sub g} , dust mass M{sub d} , age, and star formation rate (SFR) of the stacked MIPS-LBG in a self-consistent way. Our estimate of M{sub *} = 8 Multiplication-Sign 10{sup 10} of the stacked MIPS-LBG agrees with other works based on UV-optical SED fitting. We suggest that the MIPS-LBGs at z {approx} 3 are young (0.3-0.6 Gyr), massive (M{sub tot} {approx} 10{sup 11} M{sub Sun }), dusty (M{sub d} {approx} 10{sup 8} M{sub Sun }), and metal-rich (Z {approx} Z{sub Sun }) progenitors of elliptical galaxies undergoing a strong burst of star formation (SFR {approx} 200 M{sub Sun} yr{sup -1}). Our estimate of M{sub d} = 7 Multiplication-Sign 10{sup 7} M{sub Sun} of the stacked MIPS-LBG is about a factor of eight lower than the estimated value based on single temperature graybody fitting, suggesting that self-consistent SED models are needed to estimate dust mass. By comparing with Milky Way molecular cloud and dust properties, we suggest that denser and dustier environments and flatter dust size distribution are likely in high-redshift massive star-forming galaxies. These dust properties, as well as the different types of SFHs, can cause different SED shapes between high-redshift star-forming ellipticals and local starburst templates. This discrepancy

  16. Characterization Report for the David Witherspoon Screen Art Site

    SciTech Connect (OSTI)

    Phyllis C. Weaver

    2011-01-31

    The U.S. Department of Energy (DOE) Oak Ridge Office (ORO) of Environmental Management (EM) requested the technical assistance of Oak Ridge Institute for Science and Education (ORISE) to characterize a tract of land associated with the David Witherspoon, Incorporated (DWI) Volunteer Equipment and Supply Company (VESC). This tract of land (hereinafter referred to as Screen Arts) is located in the Vestal Community in the 2000-block of Maryville Pike in south Knoxville, Tennessee, as shown in Figure A-1. This tract of land has been used primarily to store salvaged equipment and materials for resale, recycle, or for disposal in the former landfill once operated by DWI. The DWI Site industrial landfill and metal recycling business had been permitted by the Tennessee Division of Radiological Health to accept low-level radiologically contaminated metals. DWI received materials and equipment associated with operations from DOE sites, including those in Oak Ridge, Tennessee; Paducah, Kentucky; and Portsmouth, Ohio. It is likely that items stored at Screen Arts may have contained some residual radiological materials.

  17. Profiles in Leadership: David Mohler, Deputy Assistant Secretary for Clean Coal and Carbon Management

    Broader source: Energy.gov [DOE]

    Profiles in Leadership is a series of interviews with senior executives in the Office of Fossil Energy (FE). In this edition we talk to David Mohler, Deputy Assistant Secretary for Clean Coal and Carbon Management.

  18. OSTIblog Articles in the David Gross Topic | OSTI, US Dept of...

    Office of Scientific and Technical Information (OSTI)

    David Gross Topic 100th DOE R&D Accomplishments Feature Page Celebration by Linda McBrearty 07 Jul, 2013 in Products and Content 7566 Accomp100slide.preview.jpg 100th DOE R&D ...

  19. David Zee | Center for Gas SeparationsRelevant to Clean Energy...

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

    University of California, Berkeley Email: david.zee at berkeley.edu Phone: 510-643-3832 BA in Chemistry and Economics, Swarthmore College EFRC Research My research involves the ...

  20. Building America Whole-House Solutions for New Homes: David Weekely Homes, Houston, Texas

    Broader source: Energy.gov [DOE]

    Case study of David Weekley Homes, who worked with Building America research partner Building Science Corporation to design HERS-59 homes with advanced framed walls, airtight drywall, and rigid foam wall sheathing.

  1. ON STAR FORMATION RATES AND STAR FORMATION HISTORIES OF GALAXIES OUT TO z {approx} 3

    SciTech Connect (OSTI)

    Wuyts, Stijn; Foerster Schreiber, Natascha M.; Lutz, Dieter; Nordon, Raanan; Berta, Stefano; Genzel, Reinhard; Magnelli, Benjamin; Poglitsch, Albrecht; Altieri, Bruno; Andreani, Paola; Aussel, Herve; Daddi, Emanuele; Elbaz, David; Cimatti, Andrea; Koekemoer, Anton M.; Maiolino, Roberto; McGrath, Elizabeth J.

    2011-09-01

    We compare multi-wavelength star formation rate (SFR) indicators out to z {approx} 3 in the GOODS-South field. Our analysis uniquely combines U to 8 {mu}m photometry from FIREWORKS, MIPS 24 {mu}m and PACS 70, 100, and 160 {mu}m photometry from the PEP, and H{alpha} spectroscopy from the SINS survey. We describe a set of conversions that lead to a continuity across SFR indicators. A luminosity-independent conversion from 24 {mu}m to total infrared luminosity yields estimates of L{sub IR} that are in the median consistent with the L{sub IR} derived from PACS photometry, albeit with significant scatter. Dust correction methods perform well at low-to-intermediate levels of star formation. They fail to recover the total amount of star formation in systems with large SFR{sub IR}/SFR{sub UV} ratios, typically occuring at the highest SFRs (SFR{sub UV+IR} {approx}> 100 M{sub sun} yr{sup -1}) and redshifts (z {approx}> 2.5) probed. Finally, we confirm that H{alpha}-based SFRs at 1.5 < z < 2.6 are consistent with SFR{sub SED} and SFR{sub UV+IR} provided extra attenuation toward H II regions is taken into account (A{sub V,neb} = A{sub V,continuum}/0.44). With the cross-calibrated SFR indicators in hand, we perform a consistency check on the star formation histories inferred from spectral energy distribution (SED) modeling. We compare the observed SFR-M relations and mass functions at a range of redshifts to equivalents that are computed by evolving lower redshift galaxies backward in time. We find evidence for underestimated stellar ages when no stringent constraints on formation epoch are applied in SED modeling. We demonstrate how resolved SED modeling, or alternatively deep UV data, may help to overcome this bias. The age bias is most severe for galaxies with young stellar populations and reduces toward older systems. Finally, our analysis suggests that SFHs typically vary on timescales that are long (at least several 100 Myr) compared to the galaxies' dynamical time.

  2. PLANET ENGULFMENT BY {approx}1.5-3 M{sub sun} RED GIANTS

    SciTech Connect (OSTI)

    Kunitomo, M.; Ikoma, M.; Sato, B.; Ida, S.; Katsuta, Y.

    2011-08-20

    Recent radial-velocity surveys for GK clump giants have revealed that planets also exist around {approx}1.5-3 M{sub sun} stars. However, no planets have been found inside 0.6 AU around clump giants, in contrast to solar-type main-sequence stars, many of which harbor short-period planets such as hot Jupiters. In this study, we examine the possibility that planets were engulfed by host stars evolving on the red-giant branch (RGB). We integrate the orbital evolution of planets in the RGB and helium-burning phases of host stars, including the effects of stellar tide and stellar mass loss. Then we derive the critical semimajor axis (or the survival limit) inside which planets are eventually engulfed by their host stars after tidal decay of their orbits. Specifically, we investigate the impact of stellar mass and other stellar parameters on the survival limit in more detail than previous studies. In addition, we make detailed comparisons with measured semimajor axes of planets detected so far, which no previous study has done. We find that the critical semimajor axis is quite sensitive to stellar mass in the range between 1.7 and 2.1 M{sub sun}, which suggests a need for careful comparison between theoretical and observational limits of the existence of planets. Our comparison demonstrates that all planets orbiting GK clump giants that have been detected are beyond the survival limit, which is consistent with the planet-engulfment hypothesis. However, on the high-mass side (>2.1M{sub sun}), the detected planets are orbiting significantly far from the survival limit, which suggests that engulfment by host stars may not be the main reason for the observed lack of short-period giant planets. To confirm our conclusion, the detection of more planets around clump giants, especially with masses {approx}> 2.5M{sub sun}, is required.

  3. PROBING THE FAINT END OF THE QUASAR LUMINOSITY FUNCTION AT z{approx} 4 IN THE COSMOS FIELD

    SciTech Connect (OSTI)

    Ikeda, H.; Nagao, T.; Matsuoka, K.; Ideue, Y.; Taniguchi, Y.; Shioya, Y.; Trump, J. R.; Comastri, A.; Enoki, M.; Koekemoer, A. M.; Morokuma, T.; Murayama, T.; Saito, T.; Silverman, J. D.; Salvato, M.; Schinnerer, E.

    2011-02-20

    We searched for quasars that are {approx}3 mag fainter than the SDSS quasars in the redshift range 3.7 {approx}< z {approx}< 4.7 in the COSMOS field to constrain the faint end of the quasar luminosity function (QLF). Using optical photometric data, we selected 31 quasar candidates with 22 < i' < 24 at z {approx} 4. We obtained optical spectra for most of these candidates using FOCAS on the Subaru telescope and identified eight low-luminosity quasars at z {approx} 4. In order to derive the QLF based on our spectroscopic follow-up campaign, we estimated the photometric completeness of our quasar survey through detailed Monte Carlo simulations. Our QLF at z {approx} 4 has a much shallower faint-end slope ({beta} = -1.67{sup +0.11}{sub -0.17}) than that obtained by other recent surveys in the same redshift. Our result is consistent with the scenario of downsizing evolution of active galactic nuclei inferred by recent optical and X-ray quasar surveys at lower redshifts.

  4. Classification of Superdeformed Bands in the Mass A{approx}60 Region

    SciTech Connect (OSTI)

    Andersson, L.-L.; Rudolph, D.; Fahlander, C.; Johansson, E. K.; Carlsson, B. G.; Ragnarsson, I.; Torres, D. A.

    2008-11-11

    The experimental knowledge of the {sub 29}{sup 61}Cu{sub 32} and {sub 30}{sup 61}Zn{sub 31} nuclei has been largely extended via the joint results from three experiments. The fusion-evaporation reaction used a {sup 36}Ar beam and a {sup 28}Si target foil to produce the two nuclei via the evaporation of either three protons ({sup 61}Cu) or two protons and a neutron ({sup 61}Zn). The experimental set-ups comprised the Ge-array GAMMASPHERE as well as neutron and charged-particle detectors placed around the target position.The resulting level schemes include around ten rotational superdeformed structures in each isotope. Most of them are linked to normally deformed states and in many cases spins and parities of the low-lying states in each structure have been determined.The collective structures are compared with results from configuration dependent Cranked Nilsson-Strutinsky calculations. The different structures are in general well understood from the calculation but the results do also suggest modifications of the standard Nilsson parameters in the mass A{approx}60 region.

  5. Remedial investigation/feasibility study for the David Witherspoon, Inc., 901 Site, Knoxville, Tennessee: Volume 2, Appendixes

    SciTech Connect (OSTI)

    1996-10-01

    This document contains the appendixes for the remedial investigation and feasibility study for the David Witherspoon, Inc., 901 site in Knoxville, Tennessee. The following topics are covered in the appendixes: (A) David Witherspoon, Inc., 901 Site Historical Data, (B) Fieldwork Plans for the David Witherspoon, Inc., 901 Site, (C) Risk Assessment, (D) Remediation Technology Discussion, (E) Engineering Support Documentation, (F) Applicable or Relevant and Appropriate Requirements, and (G) Cost Estimate Documentation.

  6. David A. Shirley, 1972 | U.S. DOE Office of Science (SC)

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

    David A. Shirley, 1972 The Ernest Orlando Lawrence Award Lawrence Award Home Nomination & Selection Guidelines Award Laureates 2010's 2000's 1990's 1980's 1970's 1960's Ceremony The Life of Ernest Orlando Lawrence Contact Information The Ernest Orlando Lawrence Award U.S. Department of Energy SC-2/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-2411 E: Email Us 1970's David A. Shirley, 1972 Print Text Size: A A A FeedbackShare Page Chemistry & Metallurgy:

  7. David J. Schlegel, 2014 | U.S. DOE Office of Science (SC)

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

    David J. Schlegel, 2014 The Ernest Orlando Lawrence Award Lawrence Award Home Nomination & Selection Guidelines Award Laureates 2010's 2000's 1990's 1980's 1970's 1960's Ceremony The Life of Ernest Orlando Lawrence Contact Information The Ernest Orlando Lawrence Award U.S. Department of Energy SC-2/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-2411 E: Email Us 2010's David J. Schlegel, 2014 Print Text Size: A A A FeedbackShare Page High Energy Physics: For

  8. NREL Scientists Win Dan David Prize in Future Category - News Releases |

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

    NREL Scientists Win Dan David Prize in Future Category Pioneering work on super-efficient solar cells earns international honor March 6, 2007 See an interview with Jerry Olson and Sarah Kurtz about their pioneering work on super-efficient solar cells at NREL. Two scientists at the U.S. Department of Energy's National Renewable Energy Laboratory have been named Dan David Prize Laureates for 2007. Jerry Olson and Sarah Kurtz will receive their award in a March 8 ceremony in Paris. The NREL

  9. Los Alamos' David Mascareñas receives Presidential Early Career Award

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

    David Mascareñas receives Presidential Early Career Award February 24, 2016 Top award honors leading early-career science and engineering professionals LOS ALAMOS, N.M., Feb. 24, 2016-David Mascareñas, of Los Alamos National Laboratory's Engineering Institute in the National Security Education Center (NSEC), was named a recipient of the Presidential Early Career Award by President Obama last week and will be honored at an award ceremony this spring in Washington, DC. "These early-career

  10. Champions in Science Whose Stars are Still Rising: Profile of David Savage

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

    | U.S. DOE Office of Science (SC) David Savage News News Home Featured Articles 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Science Headlines Science Highlights Presentations & Testimony News Archives Communications and Public Affairs Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 04.19.16 Champions in Science Whose Stars are Still Rising: Profile of David Savage For the run-up to the 2016

  11. Remarks by Federal Blue Ribbon Commission J. David Jameson Atlanta, GA

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

    Federal Blue Ribbon Commission J. David Jameson Atlanta, GA October 18, 2011 Good Morning. I am David Jameson. I am President and CEO of the Greater Aiken, South Carolina, Chamber of Commerce. I am here today in my capacity as current Chairman of the SRS Community Reuse Organization. The SRSCRO is a non-profit regional group supporting economic diversification and job creation in a five-county in Georgia and South Carolina near the Department of Energy's Savannah River Site. We are unique among

  12. COSMIC ORIGINS SPECTROGRAPH OBSERVATIONS OF WARM INTERVENING GAS AT z {approx} 0.325 TOWARD 3C 263

    SciTech Connect (OSTI)

    Narayanan, Anand [Indian Institute of Space Science and Technology, Thiruvananthapuram 695547, Kerala (India); Savage, Blair D.; Wakker, Bart P., E-mail: anand@iist.ac.in, E-mail: savage@astro.wisc.edu, E-mail: wakker@astro.wisc.edu [Department of Astronomy, University of Wisconsin-Madison, 5534 Sterling Hall, 475 N. Charter Street, Madison, WI 53706-1582 (United States)

    2012-06-10

    We present HST/COS high-S/N observations of the z = 0.32566 multiphase absorber toward 3C 263. The Cosmic Origins Spectrograph (COS) data show absorption from H I (Ly{alpha} to Ly{theta}), O VI, C III, N III, Si III, and C II. The Ne VIII in this absorber is detected in the FUSE spectrum along with O III, O IV, and N IV. The low and intermediate ions are kinematically aligned with each other and H I and display narrow line widths of b {approx} 6-8 km s{sup -1}. The O VI {lambda}{lambda}1031, 1037 lines are kinematically offset by {Delta}v {approx} 12 km s{sup -1} from the low ions and are a factor of {approx}4 broader. All metal ions except O VI and Ne VIII are consistent with an origin in gas photoionized by the extragalactic background radiation. The bulk of the observed H I is also traced by this photoionized medium. The metallicity in this gas phase is Z {approx}> 0.15 Z{sub Sun} with carbon having near-solar abundances. The O VI and Ne VIII favor an origin in collisionally ionized gas at T = 5.2 Multiplication-Sign 10{sup 5} K. The H I absorption associated with this warm absorber is a broad-Ly{alpha} absorber (BLA) marginally detected in the COS spectrum. This warm gas phase has a metallicity of [X/H] {approx}-0.12 dex, and a total hydrogen column density of N( H) {approx} 3 Multiplication-Sign 10{sup 19} cm{sup -2}, which is {approx}2 dex higher than what is traced by the photoionized gas. Simultaneous detection of O VI, Ne VIII, and BLAs in an absorber can be a strong diagnostic of gas with T {approx} 10{sup 5}-10{sup 6} K corresponding to the warm phase of the warm-hot intergalactic medium or shock-heated gas in the extended halos of galaxies.

  13. THE END OF HELIUM REIONIZATION AT z {approx_equal} 2.7 INFERRED FROM COSMIC VARIANCE IN HST/COS He II Ly{alpha} ABSORPTION SPECTRA

    SciTech Connect (OSTI)

    Worseck, Gabor; Xavier Prochaska, J. [Department of Astronomy and Astrophysics, UCO/Lick Observatory, University of California, 1156 High Street, Santa Cruz, CA 95064 (United States); McQuinn, Matthew [Department of Astronomy, University of California, 601 Campbell Hall, Berkeley, CA 94720 (United States); Dall'Aglio, Aldo; Wisotzki, Lutz [Astrophysikalisches Institut Potsdam, An der Sternwarte 16, 14482 Potsdam (Germany); Fechner, Cora; Richter, Philipp [Institut fuer Physik und Astronomie, Universitaet Potsdam, Karl-Liebknecht-Str. 24/25, 14476 Potsdam (Germany); Hennawi, Joseph F. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, 69117 Heidelberg (Germany); Reimers, Dieter, E-mail: gworseck@ucolick.org [Hamburger Sternwarte, Universitaet Hamburg, Gojenbergsweg 112, 21029 Hamburg (Germany)

    2011-06-01

    We report on the detection of strongly varying intergalactic He II absorption in HST/COS spectra of two z{sub em} {approx_equal} 3 quasars. From our homogeneous analysis of the He II absorption in these and three archival sightlines, we find a marked increase in the mean He II effective optical depth from <{tau}{sub eff},He{sub ii}>{approx_equal}1 at z {approx_equal} 2.3 to <{tau}{sub eff},He{sub ii}>{approx}>5 at z {approx_equal} 3.2, but with a large scatter of 2{approx}<{tau}{sub eff},He{sub ii}{approx}<5 at 2.7 < z < 3 on scales of {approx}10 proper Mpc. This scatter is primarily due to fluctuations in the He II fraction and the He II-ionizing background, rather than density variations that are probed by the coeval H I forest. Semianalytic models of He II absorption require a strong decrease in the He II-ionizing background to explain the strong increase of the absorption at z {approx}> 2.7, probably indicating He II reionization was incomplete at z{sub reion} {approx}> 2.7. Likewise, recent three-dimensional numerical simulations of He II reionization qualitatively agree with the observed trend only if He II reionization completes at z{sub reion} {approx_equal} 2.7 or even below, as suggested by a large {tau}{sub eff},He{sub ii}{approx}>3 in two of our five sightlines at z < 2.8. By doubling the sample size at 2.7 {approx}< z {approx}< 3, our newly discovered He II sightlines for the first time probe the diversity of the second epoch of reionization when helium became fully ionized.

  14. THE MOST METAL-POOR STARS. IV. THE TWO POPULATIONS WITH [Fe/H] {approx}< -3.0

    SciTech Connect (OSTI)

    Norris, John E.; Yong, David; Bessell, M. S.; Asplund, M. E-mail: bessell@mso.anu.edu.au; and others

    2013-01-01

    We discuss the carbon-normal and carbon-rich populations of Galactic halo stars having [Fe/H] {approx}< -3.0, utilizing chemical abundances from high-resolution, high signal-to-noise model-atmosphere analyses. The C-rich population represents {approx}28% of stars below [Fe/H] = -3.1, with the present C-rich sample comprising 16 CEMP-no stars, and two others with [Fe/H] {approx} -5.5 and uncertain classification. The population is O-rich ([O/Fe] {approx}> +1.5); the light elements Na, Mg, and Al are enhanced relative to Fe in half the sample; and for Z > 20 (Ca) there is little evidence for enhancements relative to solar values. These results are best explained in terms of the admixing and processing of material from H-burning and He-burning regions as achieved by nucleosynthesis in zero-heavy-element models in the literature of 'mixing and fallback' supernovae (SNe); of rotating, massive, and intermediate-mass stars; and of Type II SNe with relativistic jets. The available (limited) radial velocities offer little support for the C-rich stars with [Fe/H] < -3.1 being binary. More data are required before one could conclude that binarity is key to an understanding of this population. We suggest that the C-rich and C-normal populations result from two different gas cooling channels in the very early universe of material that formed the progenitors of the two populations. The first was cooling by fine-structure line transitions of C II and O I (to form the C-rich population); the second, while not well defined (perhaps dust-induced cooling?), led to the C-normal group. In this scenario, the C-rich population contains the oldest stars currently observed.

  15. David Henderson U.S. Department of Energy Office of Nuclear Energy

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

    David Henderson U.S. Department of Energy Office of Nuclear Energy Mail Stop NE-52 19901 Germantown Rd. Germantown, MD 20874-1290 Re: UPA Response to DOE RFI; Excess Uranium Management: Effects of DOE Transfers of Excess Uranium on Domestic Uranium Mining, Conversion, and Enrichment Industries Dear Mr. Henderson: Uranerz Energy Corporation (Uranerz) appreciates the opportunity to provide input regarding the Department's management of the federal excess uranium inventory. Uranerz is a publicly

  16. David Henderson U.S. Department of Energy Office of Nuclear Energy

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

    January 21, 2015 David Henderson U.S. Department of Energy Office of Nuclear Energy Mail Stop NE-52 19901 Germantown Rd. Germantown, MD 20874-1290 Re: UPA Response to DOE RFI; Excess Uranium Management: Effects of DOE Transfers of Excess Uranium on Domestic Uranium Mining, Conversion, and Enrichment Industries Dear Mr. Henderson: On behalf of the Uranium Producers of America (UPA) and our member companies, we appreciate the opportunity to provide input regarding the Department's management of

  17. David Henderson U.S. Department of Energy Office of Nuclear Energy

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

    6, 2015 David Henderson U.S. Department of Energy Office of Nuclear Energy Mail Stop NE-52 19901 Germantown Rd. Germantown, MD 20874-1290 Re: Excess Uranium Management: Effects of DOE Transfers of Excess Uranium on Domestic Uranium Mining, Conversion, and Enrichment Industries; Notice of Issues for Public Comment, Federal Register 80 14107 Dear Mr. Henderson: Uranerz Energy Corporation (Uranerz) appreciates the opportunity to provide comments on Federal Register notice FR 80 14107. Uranerz is a

  18. David Henderson U.S. Department of Energy Office of Nuclear Energy

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

    April 6, 2015 David Henderson U.S. Department of Energy Office of Nuclear Energy Mail Stop NE-52 19901 Germantown Rd. Germantown, MD 20874-1290 Re: Excess Uranium Management: Effects of DOE Transfers of Excess Uranium on Domestic Uranium Mining, Conversion, and Enrichment Industries; Notice of Issues for Public Comment, Federal Register 80 14107 Dear Mr. Henderson: Uranerz Energy Corporation (Uranerz) appreciates the opportunity to provide comments on Federal Register notice FR 80 14107.

  19. David Danielson Assistant Secretary Office of Energy Efficiency and Renewable Energy

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

    Written Statement of David Danielson Assistant Secretary Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Before the Subcommittee on Energy Committee on Science, Space, and Technology United States House of Representatives March 24, 2015 INTRODUCTION Chairman Weber, Ranking Member Grayson, and Members of the Subcommittee, thank you for the opportunity to testify on the U.S. Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy (EERE). In

  20. Senior Advisor David Huizenga's Written Statement Before the Subcommittee on Energy and Water Development Committee on Appropriations (March 19, 2013)

    Broader source: Energy.gov [DOE]

    Written Statement of David Huizenga, Senior Advisor for Environmental Management, United States Department of Energy, before the Subcommittee on Energy and Water Development Committee on...

  1. NETL'S DAVID MILLER RECEIVES 2014 ARTHUR S. FLEMMING AWARD Pittsburgh, Pa. - The Trachtenberg School of Public Policy and Public Administration

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

    DAVID MILLER RECEIVES 2014 ARTHUR S. FLEMMING AWARD Pittsburgh, Pa. - The Trachtenberg School of Public Policy and Public Administration has selected David Miller of the National Energy Technology Laboratory (NETL) as a recipient of the 2014 Arthur S. Flemming Award recognizing outstanding men and women in the federal government. Dr. Miller was chosen in recognition of his innovative leadership as Technical Director of the Department of Energy's Carbon Capture Simulation Initiative (CCSI). The

  2. Award for Nuclear Chemistry LOS ALAMOS, N.M., Aug. 22, 2016-Los Alamos National Laboratory chemist David

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

    scientist honored by ACS for innovative studies August 22, 2016 David L. Clark selected for 2017 Glenn T. Seaborg Award for Nuclear Chemistry LOS ALAMOS, N.M., Aug. 22, 2016-Los Alamos National Laboratory chemist David L. Clark has been selected as the 2017 recipient of the Glenn T. Seaborg Award for Nuclear Chemistry, sponsored by the American Chemical Society Division of Nuclear Chemistry and Technology. "Dave is well-known for his breadth of accomplishment in actinide synthesis,

  3. GALAXY EVOLUTION IN OVERDENSE ENVIRONMENTS AT HIGH REDSHIFT: PASSIVE EARLY-TYPE GALAXIES IN A CLUSTER AT z {approx} 2

    SciTech Connect (OSTI)

    Strazzullo, V.; Gobat, R.; Daddi, E.; Onodera, M.; Carollo, M.; Dickinson, M.; Renzini, A.; Arimoto, N.; Cimatti, A.; Finoguenov, A.; Chary, R.-R.

    2013-08-01

    We present a study of galaxy populations in the central region of the IRAC-selected, X-ray-detected galaxy cluster Cl J1449+0856 at z = 2. Based on a sample of spectroscopic and photometric cluster members, we investigate stellar populations and the morphological structure of cluster galaxies over an area of {approx}0.7 Mpc{sup 2} around the cluster core. The cluster stands out as a clear overdensity both in redshift space and in the spatial distribution of galaxies close to the center of the extended X-ray emission. The cluster core region (r < 200 kpc) shows a clearly enhanced passive fraction with respect to field levels. However, together with a population of massive, passive galaxies mostly with early-type morphologies, the cluster core also hosts massive, actively star-forming, often highly dust reddened sources. Close to the cluster center, a multi-component system of passive and star-forming galaxies could represent the future brightest cluster galaxy still forming. We observe a clear correlation between passive stellar populations and an early-type morphology, in agreement with field studies at similar redshift. Passive early-type galaxies in this cluster are typically a factor of 2-3 smaller than similarly massive early types at z {approx} 0. On the other hand, these same objects are on average larger by a factor of {approx}2 than field early-types at similar redshift, lending support to recent claims of an accelerated structural evolution in high-redshift dense environments. These results point toward the early formation of a population of massive galaxies, already evolved both in their structure and stellar populations, coexisting with still actively forming massive galaxies in the central regions of young clusters 10 billion years ago.

  4. PHOTOMETRIC PROPERTIES OF Ly{alpha} EMITTERS AT z {approx} 4.86 IN THE COSMOS 2 SQUARE DEGREE FIELD

    SciTech Connect (OSTI)

    Shioya, Y.; Taniguchi, Y.; Nagao, T.; Saito, T.; Trump, J.; Sasaki, S. S.; Ideue, Y.; Nakajima, A.; Matsuoka, K.; Murayama, T.; Scoville, N. Z.; Capak, P.; Ellis, R. S.; Sanders, D. B.; Kartaltepe, J.; Mobasher, B.; Aussel, H.; Koekemoer, A.; Carilli, C.; Garilli, B.

    2009-05-01

    We present results of a survey for Ly{alpha} emitters at z {approx} 4.86 based on optical narrowband ({lambda} {sub c} = 7126 A, {delta}{lambda} = 73 A) and broadband (B, V, r', i', and z') observations of the Cosmic Evolution Survey field using Suprime-Cam on the Subaru Telescope. We find 79 Ly{alpha} emitter (LAE) candidates at z {approx} 4.86 over a contiguous survey area of 1.83 deg{sup 2}, down to the Ly{alpha} line flux of 1.47 x 10{sup -17} erg s{sup -1} cm{sup -2}. We obtain the Ly{alpha} luminosity function with a best-fit Schechter parameters of log L* = 42.9{sup +0.5} {sub -0.3} erg s{sup -1} and {phi}* = 1.2{sup +8.0} {sub -1.1} x 10{sup -4} Mpc{sup -3} for {alpha} = -1.5 (fixed). The two-point correlation function for our LAE sample is {xi}(r) = (r/4.4{sup +5.7} {sub -2.9} Mpc){sup -1.90{+-}}{sup 0.22}. In order to investigate the field-to-field variations of the properties of Ly{alpha} emitters, we divide the survey area into nine tiles of 0.{sup 0}5 x 0.{sup 0}5 each. We find that the number density varies with a factor of {approx_equal}2 from field to field with high statistical significance. However, we find no significant field-to-field variance when we divide the field into four tiles with 0.{sup 0}7 x 0.{sup 0}7 each. We conclude that at least 0.5 deg{sup 2} survey area is required to derive averaged properties of LAEs at z {approx} 5, and our survey field is wide enough to overcome the cosmic variance.

  5. David Minster

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

    Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & ...

  6. David Ederer

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

    include laser-synchrotron pump-probe experiments in atoms; electronic correlations studied via photoionization of ground state and excited atoms; molecular photoionization ...

  7. David Kleinpeter

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

    Kleinpeter Title: Research Specialist 2 Office Tel. : (225) 578-9344

  8. David Skinner

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

    Arxiv preprint arXiv:1112.2193, December 1, 2011, abs1112, J. Dongarra, P. Beckman, T. Moore, P. Aerts, G. Aloisio, J.C. Andre, D. Barkai, J.Y. Berthou, T. Boku, B....

  9. David Lampert

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

    HSPF is capable of simulating all of the relevant transport processes for this study. This model has a proven track record at assessing the effects of land-use change, reservoir ...

  10. David Skinner

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

    ... A parallel quantum Monte Carlo electronic structure package", Journal of Computational Chemistry, January 1, 2005, 26:856--862, D. Skinner, "Performance monitoring of parallel ...

  11. David Skinner

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

    T. Boku, B. Braunschweig, others, "The international exascale software project roadmap", International Journal of High Performance Computing Applications, January 2011,...

  12. David Mitchell

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

    Opportunities ESnet Staff & Org Chart Administration Advanced Network Technologies Cybersecurity Infrastructure, Identity & Collaboration Network Engineering Office of the CTO...

  13. Experimental investigation of neutron emissions during thermal cycling of TiD{sub x} (x {approx} 2.00)

    SciTech Connect (OSTI)

    Fernandez, J.F.; Cuevas, F.; Alguero, M.; Sanchez, C.

    1997-03-01

    The production of neutrons from D + D reactions in thermally cycled titanium deuteride (TiD{sub x}) (x {approx} 2) is investigated in depth. Special attention is given to cubic-tetragonal ({delta} - {epsilon}) phase transition that TiD{sub x} experiences near room temperature as a possible triggering mechanism of `cold nuclear fusion reactions.` The TiD{sub x} (x {approx} 2.00) samples, possessing well-known properties about the {delta} - {epsilon} transition, are cycled at temperatures (from -60 to 60{degree} C) where the phase transition takes place. The cold fusion signature is investigated by measuring the neutron flux of the sample during the experiments. No significant neutron signal above the background level is found during thermal cycling of the TiD{sub x} samples. It is concluded that in the samples investigated, no correlation exists between the {delta} - {epsilon} transition and the trigger of the D + D reactions. Background deviations give an upper limit of the rate of the D + D {yields} {sup 3}He + n reaction of {lambda} < 10{sup -23} fusion/p-d.s. 32 refs., 8 figs., 4 tabs.

  14. EXPANDED SEARCH FOR z {approx} 10 GALAXIES FROM HUDF09, ERS, AND CANDELS DATA: EVIDENCE FOR ACCELERATED EVOLUTION AT z > 8?

    SciTech Connect (OSTI)

    Oesch, P. A.; Illingworth, G. D.; Gonzalez, V.; Magee, D.; Trenti, M.; Carollo, C. M.; Van Dokkum, P. G.

    2012-02-01

    We search for z {approx} 10 galaxies over {approx}160 arcmin{sup 2} of Wide-Field Camera 3 (WFC3)/IR data in the Chandra Deep Field South, using the public HUDF09, Early Release Science, and CANDELS surveys, that reach to 5{sigma} depths ranging from 26.9 to 29.4 in H{sub 160} AB mag. z {approx}> 9.5 galaxy candidates are identified via J{sub 125} - H{sub 160} > 1.2 colors and non-detections in any band blueward of J{sub 125}. Spitzer Infrared Array Camera (IRAC) photometry is key for separating the genuine high-z candidates from intermediate-redshift (z {approx} 2-4) galaxies with evolved or heavily dust obscured stellar populations. After removing 16 sources of intermediate brightness (H{sub 160} {approx} 24-26 mag) with strong IRAC detections, we only find one plausible z {approx} 10 galaxy candidate in the whole data set, previously reported in Bouwens et al.. The newer data cover a 3 Multiplication-Sign larger area and provide much stronger constraints on the evolution of the UV luminosity function (LF). If the evolution of the z {approx} 4-8 LFs is extrapolated to z {approx} 10, six z {approx} 10 galaxies are expected in our data. The detection of only one source suggests that the UV LF evolves at an accelerated rate before z {approx} 8. The luminosity density is found to increase by more than an order of magnitude in only 170 Myr from z {approx} 10 to z {approx} 8. This increase is {>=}4 Multiplication-Sign larger than expected from the lower redshift extrapolation of the UV LF. We are thus likely witnessing the first rapid buildup of galaxies in the heart of cosmic reionization. Future deep Hubble Space Telescope WFC3/IR data, reaching to well beyond 29 mag, can enable a more robust quantification of the accelerated evolution around z {approx} 10.

  15. Noam Katz, Cami Collins, John Wallace, Mike Clark, David Weisberg et al.

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

    bucket for rotating unmagnetized plasma Noam Katz, Cami Collins, John Wallace, Mike Clark, David Weisberg et al. Citation: Rev. Sci. Instrum. 83, 063502 (2012); doi: 10.1063/1.4723820 View online: http://dx.doi.org/10.1063/1.4723820 View Table of Contents: http://rsi.aip.org/resource/1/RSINAK/v83/i6 Published by the American Institute of Physics. Additional information on Rev. Sci. Instrum. Journal Homepage: http://rsi.aip.org Journal Information: http://rsi.aip.org/about/about_the_journal Top

  16. Best Practices Case Study: David Weekley Homes - Eagle Springs and Waterhaven, Houston, TX

    SciTech Connect (OSTI)

    none,

    2011-04-01

    Case study describing David Weekley Homes, Houston Division, has qualified more than 1,240 homes for the DOE Builders Challenge. Advanced framed 2x6 walls with open headers and two-stud corners allow more room for R-20 damp sprayed cellulose wall cavity insulation that is covered with R-5 rigid XPS foam. A radiant barrier cuts heat gain in the R-38 insulated vented attics. Draft stopping at fireplace and duct chases and behind tubs, gluing sheetrock to framing, and extensive caulking make for air-tight homes at 3.0 ACH50.

  17. OSTIblog Articles in the David Gross Topic | OSTI, US Dept of Energy Office

    Office of Scientific and Technical Information (OSTI)

    of Scientific and Technical Information David Gross Topic 100th DOE R&D Accomplishments Feature Page Celebration by Linda McBrearty 07 Jul, 2013 in Products and Content 7566 Accomp100_slide.preview.jpg 100th DOE R&D Accomplishments Feature Page Celebration Read more about 7566 DOE R&D Accomplishments is a unique website and database in the OSTI collection. For over 14 years, special Feature pages have been methodically researched and useful information collected on scientists,

  18. Ami M. DuBois, John David Lee, and Abdulgadar F. Almagri

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

    high time resolution x-ray diagnostic on the Madison Symmetric Torus Ami M. DuBois, John David Lee, and Abdulgadar F. Almagri Citation: Review of Scientific Instruments 86, 073512 (2015); doi: 10.1063/1.4927454 View online: http://dx.doi.org/10.1063/1.4927454 View Table of Contents: http://scitation.aip.org/content/aip/journal/rsi/86/7?ver=pdfcov Published by the AIP Publishing Articles you may be interested in Upgrades of imaging x-ray crystal spectrometers for high-resolution and

  19. THE DEEP2 GALAXY REDSHIFT SURVEY: CLUSTERING DEPENDENCE ON GALAXY STELLAR MASS AND STAR FORMATION RATE AT z {approx} 1

    SciTech Connect (OSTI)

    Mostek, Nick; Coil, Alison L.; Cooper, Michael; Davis, Marc; Newman, Jeffrey A.; Weiner, Benjamin J.

    2013-04-10

    We present DEEP2 galaxy clustering measurements at z {approx} 1 as a function of stellar mass, star formation rate (SFR), and specific SFR (sSFR). We find a strong positive correlation between stellar mass and clustering amplitude on 1-10 h {sup -1} Mpc scales for blue, star-forming galaxies with 9.5 < log(M{sub *}/M{sub Sun }) < 11 and no dependence for red, quiescent galaxies with 10.5 < log(M{sub *}/M{sub Sun }) < 11.5. Using recently re-calibrated DEEP2 SFRs from restframe B-band magnitude and optical colors, we find that within the blue galaxy population at z {approx} 1 the clustering amplitude increases strongly with increasing SFR and decreasing sSFR. For red galaxies there is no significant correlation between clustering amplitude and either SFR or sSFR. Blue galaxies with high SFR or low sSFR are as clustered on large scales as red galaxies. We find that the clustering trend observed with SFR can be explained mostly, but not entirely, by the correlation between stellar mass and clustering amplitude for blue galaxies. We also show that galaxies above the star-forming 'main sequence' are less clustered than galaxies below the main sequence, at a given stellar mass. These results are not consistent with the high-sSFR population being dominated by major mergers. We also measure the clustering amplitude on small scales ({<=}0.3 h {sup -1} Mpc) and find an enhanced clustering signal relative to the best-fit large-scale power law for red galaxies with high stellar mass, blue galaxies with high SFR, and both red and blue galaxies with high sSFR. The increased small-scale clustering for galaxies with high sSFRs is likely linked to triggered star formation in interacting galaxies. These measurements provide strong constraints on galaxy evolution and halo occupation distribution models at z {approx} 1.

  20. VERY BLUE UV-CONTINUUM SLOPE {beta} OF LOW LUMINOSITY z {approx} 7 GALAXIES FROM WFC3/IR: EVIDENCE FOR EXTREMELY LOW METALLICITIES?

    SciTech Connect (OSTI)

    Bouwens, R. J.; Illingworth, G. D.; Magee, D.; Trenti, M.; Stiavelli, M.; Franx, M.; Van Dokkum, P. G.; Labbe, I.

    2010-01-10

    We use the ultra-deep WFC3/IR data over the Hubble Ultra Deep Field and the Early Release Science WFC3/IR data over the CDF-South GOODS field to quantify the broadband spectral properties of candidate star-forming galaxies at z {approx} 7. We determine the UV-continuum slope {beta} in these galaxies, and compare the slopes with galaxies at later times to measure the evolution in {beta}. For luminous L* {sub z=3} galaxies, we measure a mean UV-continuum slope {beta} of -2.0 {+-} 0.2, which is comparable to the {beta} {approx} -2 derived at similar luminosities at z {approx} 5-6. However, for the lower luminosity 0.1L* {sub z=3} galaxies, we measure a mean {beta} of -3.0 {+-} 0.2. This is substantially bluer than is found for similar luminosity galaxies at z {approx} 4, just 800 Myr later, and even at z {approx} 5-6. In principle, the observed {beta} of -3.0 can be matched by a very young, dust-free stellar population, but when nebular emission is included the expected {beta} becomes {>=}-2.7. To produce these very blue {beta}s (i.e., {beta} {approx} -3), extremely low metallicities and mechanisms to reduce the red nebular emission seem to be required. For example, a large escape fraction (i.e., f {sub esc} {approx}> 0.3) could minimize the contribution from this red nebular emission. If this is correct and the escape fraction in faint z {approx} 7 galaxies is {approx}>0.3, it may help to explain how galaxies reionize the universe.

  1. ENVIRONMENTAL EFFECTS ON THE STAR FORMATION ACTIVITY IN GALAXIES AT z {approx_equal} 1.2 IN THE COSMOS FIELD

    SciTech Connect (OSTI)

    Ideue, Y.; Nagao, T.; Sasaki, S.; Taniguchi, Y.; Shioya, Y.; Saito, T.; Murayama, T.; Trump, J. R.; Koekemoer, A. M.; Aussel, H.; Ilbert, O.; Sanders, D. B.; McCracken, H.; Mobasher, B.

    2009-08-01

    We investigate the relation between the star formation activity in galaxies and environment at z {approx_equal} 1.2 in the Cosmic Evolution Survey field, using the fraction of [O II] emitters and the local galaxy density. The fraction of [O II] emitters appears to be almost constant over the surface density of galaxies between 0.2 and 10 Mpc{sup -2}. This trend is different from that seen in the local universe where the star formation activity is weaker in higher density regions. To understand this difference between z {approx} 1 and z {approx} 0, we study the fraction of non-isolated galaxies as a function of local galaxy density. We find that the fraction of non-isolated galaxies increases with increasing density. Our results suggest that the star formation in galaxies at z {approx} 1 is triggered by galaxy interaction and/or mergers.

  2. THE ROLE OF GALAXY INTERACTION IN ENVIRONMENTAL DEPENDENCE OF THE STAR FORMATION ACTIVITY AT z {approx_equal} 1.2

    SciTech Connect (OSTI)

    Ideue, Y.; Taniguchi, Y.; Shioya, Y.; Kajisawa, M.; Nagao, T.; Trump, J. R.; Iovino, A.; Koekemoer, A. M.; Le Fevre, O.; Ilbert, O.; Scoville, N. Z.

    2012-03-01

    In order to understand environmental effects on star formation in high-redshift galaxies, we investigate the physical relationships between the star formation activity, stellar mass, and environment for z {approx_equal} 1.2 galaxies in the 2 deg{sup 2} COSMOS field. We estimate star formation using the [O II]{lambda}3727 emission line and environment from the local galaxy density. Our analysis shows that for massive galaxies (M{sub *} {approx}> 10{sup 10} M{sub Sun }), the fraction of [O II] emitters in high-density environments ({Sigma}{sub 10th} {approx}> 3.9 Mpc{sup -2}) is 1.7 {+-} 0.4 times higher than in low-density environments ({Sigma}{sub 10th} {approx}< 1.5 Mpc{sup -2}), while the [O II] emitter fraction does not depend on environment for low-mass M{sub *} {approx}< 10{sup 10} M{sub Sun} galaxies. In order to understand what drives these trends, we investigate the role of companion galaxies in our sample. We find that the fraction of [O II] emitters in galaxies with companions is 2.4 {+-} 0.5 times as high as that in galaxies without companions at M{sub *} {approx}> 10{sup 10} M{sub Sun }. In addition, massive galaxies are more likely to have companions in high-density environments. However, although the number of star-forming galaxies increases for massive galaxies with close companions and in dense environments, the average star formation rate of star-forming galaxies at a given mass is independent of environment and the presence/absence of a close companion. These results suggest that interactions and/or mergers in a high-density environment could induce star formation in massive galaxies at z {approx} 1.2, increasing the fraction of star-forming galaxies with M{sub *} {approx}> 10{sup 10} M{sub Sun }.

  3. THE CIRCUMGALACTIC MEDIUM OF MASSIVE GALAXIES AT z {approx} 3: A TEST FOR STELLAR FEEDBACK, GALACTIC OUTFLOWS, AND COLD STREAMS

    SciTech Connect (OSTI)

    Shen Sijing; Madau, Piero; Prochaska, J. Xavier [Department of Astronomy and Astrophysics, University of California, 1156 High Street, Santa Cruz, CA 95064 (United States); Guedes, Javiera [Institute for Astronomy, ETH Zurich, Wolgang-Pauli-Strasse 27, CH-8093 Zurich (Switzerland); Mayer, Lucio [Institute of Theoretical Physics, University of Zurich, Winterthurerstrasse 190, CH-9057 Zurich (Switzerland); Wadsley, James [Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1 (Canada)

    2013-03-10

    We present new results on the kinematics, thermal and ionization state, and spatial distribution of metal-enriched gas in the circumgalactic medium (CGM) of massive galaxies at redshift {approx}3, using the Eris suite of cosmological hydrodynamic ''zoom-in'' simulations. The reference run adopts a blastwave scheme for supernova feedback that produces large-scale galactic outflows, a star formation recipe based on a high gas density threshold, metal-dependent radiative cooling, and a model for the diffusion of metals and thermal energy. The effect of the local UV radiation field is added in post-processing. The CGM (defined as all gas at R > 0.2 R{sub vir} = 10 kpc, where R{sub vir} is the virial radius) contains multiple phases having a wide range of physical conditions, with more than half of its heavy elements locked in a warm-hot component at T > 10{sup 5} K. Synthetic spectra, generated by drawing sightlines through the CGM, produce interstellar absorption-line strengths of Ly{alpha}, C II, C IV, Si II, and Si IV as a function of the galactocentric impact parameter (scaled to the virial radius) that are in broad agreement with those observed at high redshift by Steidel et al. The covering factor of absorbing material declines less rapidly with impact parameter for Ly{alpha} and C IV compared to C II, Si IV, and Si II, with Ly{alpha} remaining strong (W{sub Ly{alpha}} > 300 mA) to {approx}> 5 R{sub vir} = 250 kpc. Only about one third of all the gas within R{sub vir} is outflowing. The fraction of sightlines within one virial radius that intercept optically thick, N{sub H{sub I}}>10{sup 17.2} cm{sup -2} material is 27%, in agreement with recent observations by Rudie et al. Such optically thick absorption is shown to trace inflowing ''cold'' streams that penetrate deep inside the virial radius. The streams, enriched to metallicities above 0.01 solar by previous episodes of star formation in the main host and in nearby dwarfs, are the origin of strong (N{sub C

  4. THE ROAD TO THE RED SEQUENCE: A DETAILED VIEW OF THE FORMATION OF A MASSIVE GALAXY AT z {approx} 2

    SciTech Connect (OSTI)

    Ferreras, Ignacio; Pasquali, Anna; Khochfar, Sadegh; Kuntschner, Harald; Kuemmel, Martin; Pirzkal, Nor; Windhorst, Rogier; Malhotra, Sangeeta; Rhoads, James; Cohen, Seth; O'Connell, Robert W.; Hathi, Nimish P.; Ryan, Russell E.; Yan Haojing

    2012-08-15

    Over half of the census of massive galaxies at z {approx} 2 are dominated by quiescent stellar populations. The formation mechanism for these galaxies is still under debate, with models relying either on massive and early mergers or cold accretion. It is therefore imperative to understand in detail the properties of these galaxies. We present here a detailed analysis of the star formation history (SFH) of FW4871, a massive galaxy at z = 1.893 {+-} 0.002. We compare rest-frame optical and NUV slitless grism spectra from the Hubble Space Telescope with a large set of composite stellar populations to constrain the underlying SFH. Even though the morphology features prominent tidal tails, indicative of a recent merger, there is no sign of ongoing star formation within an aperture encircling one effective radius, which corresponds to a physical extent of 2.6 kpc. A model assuming truncation of an otherwise constant SFH gives a formation epoch z{sub F} {approx} 10 with a truncation after 2.7 Gyr, giving a mass-weighted age of 1.5 Gyr and a stellar mass of (0.8-3) Multiplication-Sign 10{sup 11} M{sub Sun} (the intervals representing the output from different population synthesis models), implying star formation rates of 30-110 M{sub Sun} yr{sup -1}. A more complex model including a recent burst of star formation places the age of the youngest component at 145{sup +450}{sub -70} Myr, with a mass contribution lower than 20%, and a maximum amount of dust reddening of E(B - V) < 0.4 mag (95% confidence levels). This low level of dust reddening is consistent with the low emission observed at 24 {mu}m, corresponding to rest-frame 8 {mu}m, where polycyclic aromatic hydrocarbon emission should contribute significantly if a strong formation episode were present. The color profile of FW4871 does not suggest a significant radial trend in the properties of the stellar populations out to 3 R{sub e}. We suggest that the recent merger that formed FW4871 is responsible for the quenching

  5. STELLAR POPULATIONS OF LYMAN BREAK GALAXIES AT z {approx_equal} 1-3 IN THE HST/WFC3 EARLY RELEASE SCIENCE OBSERVATIONS

    SciTech Connect (OSTI)

    Hathi, N. P.; McCarthy, P. J.; Cohen, S. H.; Windhorst, R. A.; Rutkowski, M. J.; Ryan, R. E. Jr.; Koekemoer, A. M.; Bond, H. E.; Finkelstein, S. L.; Yan, H.; O'Connell, R. W.; Straughn, A. N.; Kimble, R. A.; Balick, B.; Calzetti, D.; Disney, M. J.; Dopita, M. A.; Frogel, Jay A.; Hall, D. N. B.; Holtzman, J. A.; and others

    2013-03-10

    We analyze the spectral energy distributions (SEDs) of Lyman break galaxies (LBGs) at z {approx_equal} 1-3 selected using the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) UVIS channel filters. These HST/WFC3 observations cover about 50 arcmin{sup 2} in the GOODS-South field as a part of the WFC3 Early Release Science program. These LBGs at z {approx_equal} 1-3 are selected using dropout selection criteria similar to high-redshift LBGs. The deep multi-band photometry in this field is used to identify best-fit SED models, from which we infer the following results: (1) the photometric redshift estimate of these dropout-selected LBGs is accurate to within few percent; (2) the UV spectral slope {beta} is redder than at high redshift (z > 3), where LBGs are less dusty; (3) on average, LBGs at z {approx_equal} 1-3 are massive, dustier, and more highly star forming, compared to LBGs at higher redshifts with similar luminosities (0.1L* {approx}< L {approx}< 2.5L*), though their median values are similar within 1{sigma} uncertainties. This could imply that identical dropout selection technique, at all redshifts, finds physically similar galaxies; and (4) the stellar masses of these LBGs are directly proportional to their UV luminosities with a logarithmic slope of {approx}0.46, and star formation rates are proportional to their stellar masses with a logarithmic slope of {approx}0.90. These relations hold true-within luminosities probed in this study-for LBGs from z {approx_equal} 1.5 to 5. The star-forming galaxies selected using other color-based techniques show similar correlations at z {approx_equal} 2, but to avoid any selection biases, and for direct comparison with LBGs at z > 3, a true Lyman break selection at z {approx_equal} 2 is essential. The future HST UV surveys, both wider and deeper, covering a large luminosity range are important to better understand LBG properties and their evolution.

  6. THE DETECTION OF THE LARGE-SCALE ALIGNMENT OF MASSIVE GALAXIES AT z {approx} 0.6

    SciTech Connect (OSTI)

    Li Cheng [Partner Group of the Max Planck Institute for Astrophysics at the Shanghai Astronomical Observatory and Key Laboratory for Research in Galaxies and Cosmology of Chinese Academy of Sciences, Nandan Road 80, Shanghai 200030 (China); Jing, Y. P. [Center for Astronomy and Astrophysics, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China); Faltenbacher, A. [School of Physics, University of the Witwatersrand, P.O. Box Wits, Johannesburg 2050 (South Africa); Wang Jie, E-mail: leech@shao.ac.cn [National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China)

    2013-06-10

    We report on the detection of the alignment between galaxies and large-scale structure at z {approx} 0.6 based on the CMASS galaxy sample from the Baryon Oscillation Spectroscopy Survey Data Release 9. We use two statistics to quantify the alignment signal: (1) the alignment two-point correlation function that probes the dependence of galaxy clustering at a given separation in redshift space on the projected angle ({theta}{sub p}) between the orientation of galaxies and the line connecting to other galaxies, and (2) the cos (2{theta})-statistic that estimates the average of cos (2{theta}{sub p}) for all correlated pairs at a given separation s. We find a significant alignment signal out to about 70 h {sup -1} Mpc in both statistics. Applications of the same statistics to dark matter halos of mass above 10{sup 12} h {sup -1} M{sub Sun} in a large cosmological simulation show scale-dependent alignment signals similar to the observation, but with higher amplitudes at all scales probed. We show that this discrepancy may be partially explained by a misalignment angle between central galaxies and their host halos, though detailed modeling is needed in order to better understand the link between the orientations of galaxies and host halos. In addition, we find systematic trends of the alignment statistics with the stellar mass of the CMASS galaxies, in the sense that more massive galaxies are more strongly aligned with the large-scale structure.

  7. Synthesis and structural characterization of Al{sub 7}C{sub 3}N{sub 3}-homeotypic aluminum silicon oxycarbonitride, (Al{sub 7-x}Si{sub x})(O{sub y}C{sub z}N{sub 6-y-z}) (x{approx}1.2, y{approx}1.0 and z{approx}3.5)

    SciTech Connect (OSTI)

    Urushihara, Daisuke; Kaga, Motoaki; Asaka, Toru; Nakano, Hiromi; Fukuda, Koichiro

    2011-08-15

    A new aluminum silicon oxycarbonitride, (Al{sub 5.8}Si{sub 1.2})(O{sub 1.0}C{sub 3.5}N{sub 1.5}), has been synthesized and characterized by X-ray powder diffraction (XRPD), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX) and electron energy loss spectroscopy (EELS). The title compound is hexagonal with space group P6{sub 3}/mmc and unit-cell dimensions a=0.322508(4) nm, c=3.17193(4) nm and V=0.285717(6) nm{sup 3}. The atom ratios of Al:Si and those of O:C:N were, respectively, determined by EDX and EELS. The initial structural model was successfully derived from the XRPD data by the direct methods and further refined by the Rietveld method. The crystal is most probably composed of four types of domains with nearly the same fraction, each of which is isotypic to Al{sub 7}C{sub 3}N{sub 3} with space group P6{sub 3}mc. The existence of another new oxycarbonitride (Al{sub 6.6}Si{sub 1.4})(O{sub 0.7}C{sub 4.3}N{sub 2.0}), which must be homeotypic to Al{sub 8}C{sub 3}N{sub 4}, has been also demonstrated by XRPD and TEM. - Graphical abstract: A new oxycarbonitride discovered in the Al-Si-O-C-N system, (Al{sub 7-x}Si{sub x})(O{sub y}C{sub z}N{sub 6-y-z}) (x{approx}1.2, y{approx}1.0 and z{approx}3.5). The crystal is composed of four types of domains (I, II, III and IV), and hence the structure is represented by a split-atom model. Individual crystal structures can be regarded as layered structures, which consist of A-type [(Al, Si){sub 4}(O, C, N){sub 4}] unit layers and B-type [(Al, Si)(O, C, N){sub 2}] single layers. Highlights: > (Al{sub 5.8}Si{sub 1.2})(O{sub 1.0}C{sub 3.5}N{sub 1.5}) as a new aluminum silicon oxycarbonitride. > Crystal structure is determined and represented by a split-atom model. > Existence of another new oxycarbonitride (Al{sub 6.6}Si{sub 1.4})(O{sub 0.7}C{sub 4.3}N{sub 2.0}) is demonstrated. > Both new materials are formed by oxidation and nitridation of (Al, Si){sub 6}(O, C){sub 5}.

  8. Work plan addendum for David Witherspoon, Inc., 901 Site Building Characterization, Knoxville, Tennessee

    SciTech Connect (OSTI)

    1997-01-01

    This building characterization plan was developed as an addendum to the existing site characterization work plan documents, which are in Appendix B of the David Witherspoon, Inc., (DWI) preliminary remedial investigation (RI)/feasibility study (FS). All building characterization activities will be conducted in accordance with the rules of the Hazardous Substance Remedial Action Program under the direction of the Tennessee Department of Environment and Conservation, Division of Superfund (TN Rules 1200-1-3) and its implementing regulations. Additional rules of the state of Tennessee, Comprehensive Environmental Response, Compensation, and Liability Act of 1980, and the U.S. Environmental Protection Agency guidance were consulted during development of this plan. Activities at the DWI site were concerned with scrap metal processing and scrap metal resale.

  9. Remedial investigation/feasibility study for the David Witherspoon, Inc., 901 Site, Knoxville, Tennessee: Volume 1

    SciTech Connect (OSTI)

    1996-10-01

    This remedial investigation (RI)/feasibility study (FS) supports the selection of remedial actions for the David Witherspoon, Inc. 901 Maryville Pike Site in Knoxville, Tennessee. Operations at the site, used as a recycling center, have resulted in past, present, and potential future releases of hazardous substances in to the environment. This Site is a Tennessee Superfund site. A phased approach was planned to (1) gather existing data from previous investigations managed by the Tenn. Dept. of Environment and Conservation; (2) perform a preliminary RI, including risk assessments, and an FS with existing data to identify areas where remedial action may be necessary; (3) gather additional field data to adequately define the nature and extent of risk-based contaminants that present identifiable threats to human and/or ecological receptors; and (4) develop remedial action alternatives to reduce risks to acceptable levels.

  10. A DEEP HUBBLE SPACE TELESCOPE SEARCH FOR ESCAPING LYMAN CONTINUUM FLUX AT z {approx} 1.3: EVIDENCE FOR AN EVOLVING IONIZING EMISSIVITY

    SciTech Connect (OSTI)

    Siana, Brian; Bridge, Carrie R.; Teplitz, Harry I.; Chary, Ranga-Ram; Colbert, James W.; Scarlata, Claudia; Ferguson, Henry C.; Brown, Thomas M.; Giavalisco, Mauro; Dickinson, Mark; De Mello, Duilia F.; Conselice, Christopher J.; Gardner, Jonathan P.

    2010-11-01

    We have obtained deep Hubble Space Telescope far-UV images of 15 starburst galaxies at z {approx} 1.3 in the GOODS fields to search for escaping Lyman continuum (LyC) photons. These are the deepest far-UV images (m{sub AB} = 28.7, 3{sigma}, 1'' diameter) over this large an area (4.83 arcmin{sup 2}) and provide some of the best escape fraction constraints for any galaxies at any redshift. We do not detect any individual galaxies, with 3{sigma} limits to the LyC ({approx}700 A) flux 50-149 times fainter (in f{sub {nu}}) than the rest-frame UV (1500 A) continuum fluxes. Correcting for the mean intergalactic medium (IGM) attenuation (factor {approx}2), as well as an intrinsic stellar Lyman break (factor {approx}3), these limits translate to relative escape fraction limits of f{sub esc,rel} < [0.03, 0.21]. The stacked limit is f{sub esc,rel}(3{sigma}) < 0.02. We use a Monte Carlo simulation to properly account for the expected distribution of line-of-sight IGM opacities. When including constraints from previous surveys at z {approx} 1.3 we find that, at the 95% confidence level, no more than 8% of star-forming galaxies at z {approx} 1.3 can have relative escape fractions greater than 0.50. Alternatively, if the majority of galaxies have low, but non-zero, escaping LyC, the escape fraction cannot be more than 0.04. In light of some evidence for strong LyC emission from UV-faint regions of Lyman break galaxies (LBGs) at z {approx} 3, we also stack sub-regions of our galaxies with different surface brightnesses and detect no significant LyC flux at the f{sub esc,rel} < 0.03 level. Both the stacked limits and the limits from the Monte Carlo simulation suggest that the average ionizing emissivity (relative to non-ionizing UV emissivity) at z {approx} 1.3 is significantly lower than has been observed in LBGs at z {approx} 3. If the ionizing emissivity of star-forming galaxies is in fact increasing with redshift, it would help to explain the high photoionization rates seen in

  11. THE HALO MASSES AND GALAXY ENVIRONMENTS OF HYPERLUMINOUS QSOs AT z {approx_equal} 2.7 IN THE KECK BARYONIC STRUCTURE SURVEY

    SciTech Connect (OSTI)

    Trainor, Ryan F.; Steidel, Charles C.

    2012-06-10

    We present an analysis of the galaxy distribution surrounding 15 of the most luminous ({approx}> 10{sup 14} L{sub Sun }; M{sub 1450} {approx_equal} -30) QSOs in the sky with z {approx_equal} 2.7. Our data are drawn from the Keck Baryonic Structure Survey, which has been optimized to examine the small-scale interplay between galaxies and the intergalactic medium during the peak of the galaxy formation era at z {approx} 2-3. In this work, we use the positions and spectroscopic redshifts of 1558 galaxies that lie within {approx}3' (4.2 h{sup -1} comoving Mpc; cMpc) of the hyperluminous QSO (HLQSO) sight line in 1 of 15 independent survey fields, together with new measurements of the HLQSO systemic redshifts. By combining the spatial and redshift distributions, we measure the galaxy-HLQSO cross-correlation function, the galaxy-galaxy autocorrelation function, and the characteristic scale of galaxy overdensities surrounding the sites of exceedingly rare, extremely rapid, black hole accretion. On average, the HLQSOs lie within significant galaxy overdensities, characterized by a velocity dispersion {sigma}{sub v} {approx_equal} 200 km s{sup -1} and a transverse angular scale of {approx}25'' ({approx}200 physical kpc). We argue that such scales are expected for small groups with log (M{sub h}/M{sub Sun }) {approx_equal} 13. The galaxy-HLQSO cross-correlation function has a best-fit correlation length r{sup GQ}{sub 0} = (7.3 {+-} 1.3) h{sup -1} cMpc, while the galaxy autocorrelation measured from the spectroscopic galaxy sample in the same fields has r{sup GG}{sub 0} = (6.0 {+-} 0.5) h{sup -1} cMpc. Based on a comparison with simulations evaluated at z {approx} 2.6, these values imply that a typical galaxy lives in a host halo with log (M{sub h}/M{sub Sun }) = 11.9 {+-} 0.1, while HLQSOs inhabit host halos of log (M{sub h}/M{sub Sun }) = 12.3 {+-} 0.5. In spite of the extremely large black hole masses implied by their observed luminosities [log (M{sub BH}/M{sub Sun

  12. PHOTOMETRIC CONSTRAINTS ON THE REDSHIFT OF z {approx} 10 CANDIDATE UDFj-39546284 FROM DEEPER WFC3/IR+ACS+IRAC OBSERVATIONS OVER THE HUDF

    SciTech Connect (OSTI)

    Bouwens, R. J.; Labbe, I.; Franx, M.; Smit, R.; Oesch, P. A.; Illingworth, G. D.; Magee, D.; Gonzalez, V.; Brammer, G.; Spitler, L. R.; Trenti, M.; Carollo, C. M.

    2013-03-01

    Ultra-deep WFC3/IR observations on the HUDF from the HUDF09 program revealed just one plausible z {approx} 10 candidate, UDFj-39546284. UDFj-39546284 had all the properties expected of a galaxy at z {approx} 10 showing (1) no detection in the deep ACS+WFC3 imaging data blueward of the F160W band, exhibiting (2) a blue spectral slope redward of the break, and showing (3) no prominent detection in deep IRAC observations. The new, similarly deep WFC3/IR HUDF12 F160W observations over the HUDF09/XDF allow us to further assess this candidate. These observations show that this candidate, previously only detected at {approx}5.9{sigma} in a single band, clearly corresponds to a real source. It is detected at {approx}5.3{sigma} in the new H{sub 160}-band data and at {approx}7.8{sigma} in the full 85-orbit H{sub 160}-band stack. Interestingly, the non-detection of the source (<1{sigma}) in the new F140W observations suggests a higher redshift. Formally, the best-fit redshift of the source utilizing all the WFC3+ACS (and IRAC+K{sub s} -band) observations is 11.8 {+-} 0.3. However, we consider the z {approx} 12 interpretation somewhat unlikely, since the source would either need to be {approx}20 Multiplication-Sign more luminous than expected or show very high-EW Ly{alpha} emission (which seems improbable given the extensive neutral gas prevalent early in the reionization epoch). Lower-redshift solutions fail if only continuum models are allowed. Plausible lower-redshift solutions require that the H{sub 160}-band flux be dominated by line emission such as H{alpha} or [O III] with extreme EWs. The tentative detection of line emission at 1.6 {mu}m in UDFj-39546284 in a companion paper suggests that such emission may have already been found.

  13. STELLAR POPULATIONS OF Ly{alpha} EMITTERS AT z {approx} 6-7: CONSTRAINTS ON THE ESCAPE FRACTION OF IONIZING PHOTONS FROM GALAXY BUILDING BLOCKS

    SciTech Connect (OSTI)

    Ono, Yoshiaki; Shimasaku, Kazuhiro; Okamura, Sadanori; Masami Ouchi; Dunlop, James; Farrah, Duncan; McLure, Ross

    2010-12-01

    We investigate the stellar populations of Ly{alpha} emitters (LAEs) at z = 5.7 and 6.6 in a 0.65 deg{sup 2} sky of the Subaru/XMM-Newton Deep Survey (SXDS) Field, using deep images taken with the Subaru/Suprime-Cam, United Kingdom Infrared Telescope/Wide Field Infrared Camera, and Spitzer/Infrared Array Camera (IRAC). We produce stacked multiband images at each redshift from 165 (z = 5.7) and 91 (z = 6.6) IRAC-undetected objects to derive typical spectral energy distributions (SEDs) of z {approx} 6-7 LAEs for the first time. The stacked LAEs have as blue UV continua as the Hubble Space Telescope (HST)/Wide Field Camera 3 (WFC3) z-dropout galaxies of similar M{sub UV}, with a spectral slope {beta} {approx} -3, but at the same time they have red UV-to-optical colors with detection in the 3.6 {mu}m band. Using SED fitting we find that the stacked LAEs have low stellar masses of {approx}(3-10) x 10{sup 7} M{sub sun}, very young ages of {approx}1-3 Myr, negligible dust extinction, and strong nebular emission from the ionized interstellar medium, although the z = 6.6 object is fitted similarly well with high-mass models without nebular emission; inclusion of nebular emission reproduces the red UV-to-optical colors while keeping the UV colors sufficiently blue. We infer that typical LAEs at z {approx} 6-7 are building blocks of galaxies seen at lower redshifts. We find a tentative decrease in the Ly{alpha} escape fraction from z = 5.7 to 6.6, which may imply an increase in the intergalactic medium neutral fraction. From the minimum contribution of nebular emission required to fit the observed SEDs, we place an upper limit on the escape fraction of ionizing photons of f {sup ion}{sub esc} {approx} 0.6 at z = 5.7 and {approx}0.9 at z = 6.6. We also compare the stellar populations of our LAEs with those of stacked HST/WFC3 z-dropout galaxies.

  14. A CANDELS WFC3 GRISM STUDY OF EMISSION-LINE GALAXIES AT z {approx} 2: A MIX OF NUCLEAR ACTIVITY AND LOW-METALLICITY STAR FORMATION

    SciTech Connect (OSTI)

    Trump, Jonathan R.; Kocevski, Dale D.; McGrath, Elizabeth J.; Koo, David C.; Faber, S. M.; Mozena, Mark; Yesuf, Hassen; Scarlata, Claudia; Bell, Eric F.; Laird, Elise S.; Rangel, Cyprian; Yan Renbin; Atek, Hakim; Dickinson, Mark; Donley, Jennifer L.; Ferguson, Henry C.; Grogin, Norman A.; Dunlop, James S.; Finkelstein, Steven L.; and others

    2011-12-20

    We present Hubble Space Telescope Wide Field Camera 3 (WFC3) slitless grism spectroscopy of 28 emission-line galaxies at z {approx} 2, in the GOODS-S region of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey. The high sensitivity of these grism observations, with >1{sigma} detections of emission lines to f > 2.5 Multiplication-Sign 10{sup -18} erg s{sup -1} cm{sup -2}, means that the galaxies in the sample are typically {approx}7 times less massive (median M{sub *} = 10{sup 9.5} M{sub Sun }) than previously studied z {approx} 2 emission-line galaxies. Despite their lower mass, the galaxies have [O III]/H{beta} ratios which are very similar to previously studied z {approx} 2 galaxies and much higher than the typical emission-line ratios of local galaxies. The WFC3 grism allows for unique studies of spatial gradients in emission lines, and we stack the two-dimensional spectra of the galaxies for this purpose. In the stacked data the [O III] emission line is more spatially concentrated than the H{beta} emission line with 98.1% confidence. We additionally stack the X-ray data (all sources are individually undetected), and find that the average L{sub [OIII]}/L{sub 0.5-10keV} ratio is intermediate between typical z {approx} 0 obscured active galaxies and star-forming galaxies. Together the compactness of the stacked [O III] spatial profile and the stacked X-ray data suggest that at least some of these low-mass, low-metallicity galaxies harbor weak active galactic nuclei.

  15. David Blackwell’s Forty Years in the Idaho Desert, The Foundation for 21st Century Geothermal Research

    SciTech Connect (OSTI)

    McLing, Travis; McCurry, Mike; Cannon, Cody; Neupane, Ghanashyam; Wood, Thomas; Podgorney, Robert; Welhan, John; Mines, Greg; Mattson, Earl; Wood, Rachel; Palmer, Carl

    2015-04-01

    Dr. David Blackwell has had a profound influence on geo-thermal exploration and R&D in Idaho. Forty years have elapsed since the first Southern Methodist University (SMU) temperature logging truck rolled onto the high desert in Southern Idaho, yet even after so much time has elapsed, most recent and ongoing geothermal R&D can trace its roots to the foundational temperature studies led by Dr. Blackwell. We believe that the best way to honor any scientist is to see their work carried forward by others. As this paper demonstrates, it has been an easy task to find a host of Idaho researchers and students eager to contribute to this tribute paper. We organize this paper by ongoing or recent projects that continue to benefit left to Idaho by Dr. David Blackwell.

  16. THE AVERAGE PHYSICAL PROPERTIES AND STAR FORMATION HISTORIES OF THE UV-BRIGHTEST STAR-FORMING GALAXIES AT z {approx} 3.7

    SciTech Connect (OSTI)

    Lee, Kyoung-Soo; Glikman, Eilat; Dey, Arjun; Reddy, Naveen; Jannuzi, Buell T.; Brown, Michael J. I.; Gonzalez, Anthony H.; Cooper, Michael C.; Fan Xiaohui; Bian Fuyan; Stern, Daniel; Brodwin, Mark; Cooray, Asantha

    2011-06-01

    We investigate the average physical properties and star formation histories (SFHs) of the most UV-luminous star-forming galaxies at z {approx} 3.7. Our results are based on the average spectral energy distributions (SEDs), constructed from stacked optical-to-infrared photometry, of a sample of the 1913 most UV-luminous star-forming galaxies found in 5.3 deg{sup 2} of the NOAO Deep Wide-Field Survey. We find that the shape of the average SED in the rest optical and infrared is fairly constant with UV luminosity, i.e., more UV-luminous galaxies are, on average, also more luminous at longer wavelengths. In the rest UV, however, the spectral slope {beta} ({identical_to} dlogF{sub {lambda}}/dlog{lambda}; measured at 0.13 {mu}m < {lambda}{sub rest} < 0.28 {mu}m) rises steeply with the median UV luminosity from -1.8 at L {approx} L* to -1.2 (L {approx} 4-5L*). We use population synthesis analyses to derive their average physical properties and find that (1) L{sub UV} and thus star formation rates (SFRs) scale closely with stellar mass such that more UV-luminous galaxies are also more massive, (2) the median ages indicate that the stellar populations are relatively young (200-400 Myr) and show little correlation with UV luminosity, and (3) more UV-luminous galaxies are dustier than their less-luminous counterparts, such that L {approx} 4-5L* galaxies are extincted up to A(1600) = 2 mag while L {approx} L* galaxies have A(1600) = 0.7-1.5 mag. We argue that the average SFHs of UV-luminous galaxies are better described by models in which SFR increases with time in order to simultaneously reproduce the tight correlation between the UV-derived SFR and stellar mass and their universally young ages. We demonstrate the potential of measurements of the SFR-M{sub *} relation at multiple redshifts to discriminate between simple models of SFHs. Finally, we discuss the fate of these UV-brightest galaxies in the next 1-2 Gyr and their possible connection to the most massive galaxies at

  17. Microsoft PowerPoint - 9_David Thomas_WR Transparency at NMMSS 2013 Annual Mtg_FINAL.pptx

    National Nuclear Security Administration (NNSA)

    HEU Downblending in Russia Under the 1993 U.S.-Russia HEU Purchase Agreement David Thomas NNSA/SAIC Russian HEU Down Blending Almost Complete  The Agreement for the disposition of 500MT of Russian HEU was signed in 1993 and the Purchase Contract between USEC and Tenex was signed in 1994  To date, 472.6 metric tons of HEU have been converted to LEU and delivered to USEC  By December 2013, 500 metric tons will be converted to LEU and delivered to USEC  Deliveries of "WR" LEU

  18. X-RAY PROPERTIES OF THE z {approx} 4.5 Ly{alpha} EMITTERS IN THE CHANDRA DEEP FIELD SOUTH REGION

    SciTech Connect (OSTI)

    Zheng, Z. Y.; Wang, J. X.; Finkelstein, S. L.; Finkelstein, K. D.; Malhotra, S.; Rhoads, J. E. E-mail: jxw@ustc.edu.c

    2010-07-20

    We report the first X-ray detection of Ly{alpha} emitters (LAEs) at redshift z {approx} 4.5. One source (J033127.2-274247) is detected in the Extended Chandra Deep Field-South (ECDF-S) X-ray data and has been spectroscopically confirmed as a z = 4.48 quasar with L{sub X} = 4.2 x 10{sup 44} erg s{sup -1}. The single detection gives an Ly{alpha} quasar density of {approx} 2.7{sup +6.2} {sub -2.2} x 10{sup -6} Mpc{sup -3}, consistent with the X-ray luminosity function of quasars. Another 22 LAEs in the central Chandra Deep Field-South region are not detected individually, but their co-added counts yield an S/N = 2.4 (p = 99.83%) detection at soft band, with an effective exposure time of {approx}36 Ms. Further analysis of the equivalent width (EW) distribution shows that all the signals come from 12 LAE candidates with EW{sub rest}< 400 A and 2 of them contribute about half of the signal. From follow-up spectroscopic observations, we find that one of the two is a low-redshift emission-line galaxy, and the other is a Lyman break galaxy at z = 4.4 with little or no Ly{alpha} emission. Excluding these two and combined with ECDF-S data, we derive a 3{sigma} upper limit on the average X-ray flux of F {sub 0.5-2.0keV} < 1.6 x 10{sup -18} erg cm{sup -2} s{sup -1}, which corresponds to an average luminosity of (L {sub 0.5-2keV}) <2.4 x 10{sup 42} erg s{sup -1} for z {approx} 4.5 LAEs. If the average X-ray emission is due to star formation, it corresponds to a star formation rate (SFR) of <180-530 M {sub sun} yr{sup -1}. We use this SFR {sub X} as an upper limit of the unobscured SFR to constrain the escape fraction of Ly{alpha} photons and find a lower limit of f{sub esc,Ly{alpha}} > 3%-10%. However, our upper limit on the SFR {sub X} is {approx}7 times larger than the upper limit on SFR {sub X} on z {approx} 3.1 LAEs in the same field and at least 30 times higher than the SFR estimated from Ly{alpha} emission. From the average X-ray-to-Ly{alpha} line ratio, we estimate that

  19. A REST-FRAME OPTICAL VIEW ON z {approx} 4 GALAXIES. I. COLOR AND AGE DISTRIBUTIONS FROM DEEP IRAC PHOTOMETRY OF THE IUDF10 AND GOODS SURVEYS

    SciTech Connect (OSTI)

    Oesch, P. A.; Illingworth, G. D.; Gonzalez, V.; Holden, B. P.; Magee, D.; Trenti, M.; Van Dokkum, P. G.

    2013-08-01

    We present a study of rest-frame UV-to-optical color distributions for z {approx} 4 galaxies based on the combination of deep HST/ACS+WFC3/IR data with Spitzer/IRAC imaging. In particular, we use new, ultra-deep data from the IRAC Ultradeep Field program (IUDF10), together with previous, public IRAC data over the GOODS fields. Our sample contains a total of {approx}2600 galaxies selected as B-dropout Lyman-break Galaxies in the HUDF and its deep parallel field HUDF09-2, as well as GOODS-North/South. This sample is used to investigate the UV continuum slopes {beta} and Balmer break colors (J{sub 125} - [4.5]) as a function of rest-frame optical luminosity (using [4.5] to avoid optical emission lines). We find that galaxies at M{sub z} < -21.5 (roughly corresponding to L{sup *}{sub z{approx}4}) are significantly redder than their lower luminosity counterparts. The UV continuum slopes and the J{sub 125} - [4.5] colors are well correlated, indicating that the dust reddening at these redshifts is better described by an SMC-like extinction curve, rather than the typically assumed Calzetti reddening. After dust correction, we find that the galaxy population shows mean stellar population ages in the range 10{sup 8.5} to 10{sup 9} yr, with a dispersion of {approx}0.5 dex, and only weak trends as a function of luminosity. Only a small fraction of galaxies shows Balmer break colors consistent with extremely young ages, younger than 100 Myr. Under the assumption of smooth star-formation histories, this fraction is 12%-19% for galaxies at M{sub z} < -19.75. Our results are consistent with a gradual build-up of stars and dust in galaxies at z > 4 with only a small fraction of stars being formed in short, intense bursts of star-formation.

  20. z {approx} 4 H{alpha} EMITTERS IN THE GREAT OBSERVATORIES ORIGINS DEEP SURVEY: TRACING THE DOMINANT MODE FOR GROWTH OF GALAXIES

    SciTech Connect (OSTI)

    Shim, Hyunjin; Chary, Ranga-Ram; Dickinson, Mark; Lin Lihwai; Yan, Chi-Hung; Spinrad, Hyron; Stern, Daniel

    2011-09-01

    We present evidence for strong H{alpha} emission in galaxies with spectroscopic redshifts in the range of 3.8 < z < 5.0 over the Great Observatories Origins Deep Survey fields. Among 74 galaxies detected in the Spitzer IRAC 3.6 and 4.5 {mu}m bands, more than 70% of the galaxies show clear excess at 3.6 {mu}m compared to the expected flux density from stellar continuum only. We provide evidence that this 3.6 {mu}m excess is due to H{alpha} emission redshifted into the 3.6 {mu}m band, and classify these 3.6 {mu}m excess galaxies to be H{alpha} emitter (HAE) candidates. The selection of HAE candidates using an excess in broadband filters is sensitive to objects whose rest-frame H{alpha} equivalent width (EW) is larger than 350 A. The H{alpha} inferred star formation rates (SFRs) of the HAEs range between 20 and 500 M{sub sun} yr{sup -1} and are a factor of {approx}6 larger than SFRs inferred from the UV continuum. The ratio between the H{alpha} luminosity and UV luminosity of HAEs is also on average larger than that of local starbursts. Possible reasons for such strong H{alpha} emission in these galaxies include different dust extinction properties, young stellar population ages, extended star formation histories, low metallicity, and a top-heavy stellar initial mass function. Although the correlation between UV slope {beta} and L{sub H{alpha}}/L{sub UV} raises the possibility that HAEs prefer a dust extinction curve which is steeper in the UV, the most dominant factor that results in strong H{alpha} emission appears to be star formation history. The H{alpha} EWs of HAEs are large despite their relatively old stellar population ages constrained by spectral energy distribution fitting, suggesting that at least 60% of HAEs produce stars at a constant rate. Under the assumption that the gas supply is sustained, HAEs are able to produce {approx}> 50% of the stellar mass density that is encompassed in massive (M{sub *} > 10{sup 11} M{sub sun}) galaxies at z {approx} 3

  1. RCRA Summary Document for the David Witherspoon 1630 Site, Knoxville, Tennessee

    SciTech Connect (OSTI)

    Pfeffer, J.

    2008-06-10

    The 48-acre David Witherspoon, Inc. (DWI) 1630 Site operated as an unregulated industrial landfill and scrap yard. The Tennessee Division of Superfund (TDSF) closed the landfill in 1974. During the period of operation, the site received solid and liquid wastes from salvage and industrial operations. The site consists of five separate tracts of land including a small portion located across the Norfolk Southern Railroad track. The landfill occupies approximately 5 acres of the site, and roughly 20 acres of the 48 acres contains surface and buried debris associated with the DWI dismantling business operation. Beginning in 1968, the state of Tennessee licensed DWI to receive scrap metal at the DWI 1630 Site, contaminated with natural uranium and enriched uranium (235U) not exceeding 0.1 percent by weight (TDSF 1990). The U.S. Department of Energy (DOE) has agreed to undertake remedial actions at the DWI 1630 Site as specified under a Consent Order with the Tennessee Department of Environment and Conservation (TDEC) (Consent Order No. 90-3443, April 4, 1991), and as further delineated by a Memorandum of Understanding (MOU) between DOE and the State of Tennessee (MOU Regarding Implementation of Consent Orders, October 6, 1994). The soil and debris removal at the DWI 1630 Site is being performed by Bechtel Jacobs Company LLC (BJC) on behalf of the DOE. Remediation consists of removing contaminated soil and debris from the DWI 1630 site except for the landfill area and repairing the landfill cap. The DWI 1630 remediation waste that is being disposed at the Environmental Management Waste Management Facility (EMWMF) as defined as waste lot (WL) 146.1 and consists primarily of soils and soil like material, incidental debris and secondary waste generated from the excavation of debris and soil from the DWI 1630 site. The WL 146.1 includes soil, soil like material (e.g., shredded or chipped vegetation, ash), discrete debris items (e.g., equipment, drums, large scrap metal

  2. Written Statement of David Huizenga Senior Advisor for Environmental Management United States Department of Energy Before the Subcommittee on Strategic Forces Armed Services Committee United States House of Representatives (May 9, 2013)

    Broader source: Energy.gov [DOE]

    Senior Advisor David Huizenga represented the Department of Energy’s (DOE) Office of Environmental Management (EM) before the Subcommittee on Strategic Forces Armed Services Committee United States...

  3. Written Statement of David Huizenga Senior Advisor for Environmental Management United States Department of Energy Before the Subcommittee on Strategic Forces Armed Services Committee United States Senate (May 8, 2013)

    Broader source: Energy.gov [DOE]

    Senior Advisor David Huizenga represented the Department of Energy’s (DOE) Office of Environmental Management (EM) before the Subcommittee on Strategic Forces Armed Services Committee United States...

  4. NO EVIDENCE FOR EVOLUTION IN THE FAR-INFRARED-RADIO CORRELATION OUT TO z {approx} 2 IN THE EXTENDED CHANDRA DEEP FIELD SOUTH

    SciTech Connect (OSTI)

    Mao, Minnie Y.; Huynh, Minh T.; Helou, George; Norris, Ray P.; Dickinson, Mark; Frayer, Dave; Monkiewicz, Jacqueline A.

    2011-04-20

    We investigate the 70 {mu}m far-infrared-radio correlation (FRC) of star-forming galaxies in the Extended Chandra Deep Field South (ECDFS) out to z > 2. We use 70 {mu}m data from the Far-Infrared Deep Extragalactic Legacy Survey (FIDEL), which comprises the most sensitive ({approx}0.8 mJy rms) and extensive far-infrared deep field observations using MIPS on the Spitzer Space Telescope, and 1.4 GHz radio data ({approx}8 {mu}Jy beam{sup -1} rms) from the Very Large Array. In order to quantify the evolution of the FRC, we use both survival analysis and stacking techniques, which we find give similar results. We also calculate the FRC using total infrared luminosity and rest-frame radio luminosity, q{sub TIR}, and find that q{sub TIR} is constant (within 0.22) over the redshift range 0-2. We see no evidence for evolution in the FRC at 70 {mu}m, which is surprising given the many factors that are expected to change this ratio at high redshifts.

  5. A REFINED ESTIMATE OF THE IONIZING EMISSIVITY FROM GALAXIES AT z {approx_equal} 3: SPECTROSCOPIC FOLLOW-UP IN THE SSA22a FIELD

    SciTech Connect (OSTI)

    Nestor, Daniel B.; Shapley, Alice E.; Kornei, Katherine A.; Steidel, Charles C.; Siana, Brian

    2013-03-01

    We investigate the contribution of star-forming galaxies to the ionizing background at z {approx} 3, building on previous work based on narrowband (NB3640) imaging in the SSA22a field. We use new Keck/LRIS spectra of Lyman break galaxies (LBGs) and narrowband-selected Ly{alpha} emitters (LAEs) to measure redshifts for 16 LBGs and 87 LAEs at z > 3.055, such that our NB3640 imaging probes the Lyman-continuum (LyC) region. When we include the existing set of spectroscopically confirmed LBGs, our total sample with z > 3.055 consists of 41 LBGs and 91 LAEs, of which 9 LBGs and 20 LAEs are detected in our NB3640 image. With our combined imaging and spectroscopic data sets, we critically investigate the origin of NB3640 emission for detected LBGs and LAEs. We remove from our samples three LBGs and three LAEs with spectroscopic evidence of contamination of their NB3640 flux by foreground galaxies and statistically model the effects of additional, unidentified foreground contaminants. The resulting contamination and LyC-detection rates, respectively, are 62% {+-} 13% and 8% {+-} 3% for our LBG sample, and 47% {+-} 10% and 12% {+-} 2% for our LAE sample. The corresponding ratios of non-ionizing UV to LyC flux density, corrected for intergalactic medium (IGM) attenuation, are 18.0{sup +34.8} {sub -7.4} for LBGs and 3.7{sup +2.5} {sub -1.1} for LAEs. We use these ratios to estimate the total contribution of star-forming galaxies to the ionizing background and the hydrogen photoionization rate in the IGM, finding values larger than, but consistent with, those measured in the Ly{alpha} forest. Finally, the measured UV to LyC flux-density ratios imply model-dependent LyC escape fractions of f {sup LyC} {sub esc} {approx} 5%-7% for our LBG sample and f {sup LyC} {sub esc} {approx} 10%-30% for our fainter LAE sample.

  6. THE BULK OF THE BLACK HOLE GROWTH SINCE z {approx} 1 OCCURS IN A SECULAR UNIVERSE: NO MAJOR MERGER-AGN CONNECTION

    SciTech Connect (OSTI)

    Cisternas, Mauricio; Jahnke, Knud; Inskip, Katherine J.; Robaina, Aday R.; Andrae, Rene; Kartaltepe, Jeyhan; Koekemoer, Anton M.; Lisker, Thorsten; Scodeggio, Marco; Sheth, Kartik; Capak, Peter; Trump, Jonathan R.; Impey, Chris D.; Miyaji, Takamitsu; Lusso, Elisabeta; Brusa, Marcella; Cappelluti, Nico; Civano, Francesca; Ilbert, Olivier; Leauthaud, Alexie

    2011-01-10

    What is the relevance of major mergers and interactions as triggering mechanisms for active galactic nuclei (AGNs) activity? To answer this long-standing question, we analyze 140 XMM-Newton-selected AGN host galaxies and a matched control sample of 1264 inactive galaxies over z {approx} 0.3-1.0 and M{sub *} < 10{sup 11.7} M{sub sun} with high-resolution Hubble Space Telescope/Advanced Camera for Surveys imaging from the COSMOS field. The visual analysis of their morphologies by 10 independent human classifiers yields a measure of the fraction of distorted morphologies in the AGN and control samples, i.e., quantifying the signature of recent mergers which might potentially be responsible for fueling/triggering the AGN. We find that (1) the vast majority (>85%) of the AGN host galaxies do not show strong distortions and (2) there is no significant difference in the distortion fractions between active and inactive galaxies. Our findings provide the best direct evidence that, since z {approx} 1, the bulk of black hole (BH) accretion has not been triggered by major galaxy mergers, therefore arguing that the alternative mechanisms, i.e., internal secular processes and minor interactions, are the leading triggers for the episodes of major BH growth. We also exclude an alternative interpretation of our results: a substantial time lag between merging and the observability of the AGN phase could wash out the most significant merging signatures, explaining the lack of enhancement of strong distortions on the AGN hosts. We show that this alternative scenario is unlikely due to (1) recent major mergers being ruled out for the majority of sources due to the high fraction of disk-hosted AGNs, (2) the lack of a significant X-ray signal in merging inactive galaxies as a signature of a potential buried AGN, and (3) the low levels of soft X-ray obscuration for AGNs hosted by interacting galaxies, in contrast to model predictions.

  7. ON THE DETECTION OF IONIZING RADIATION ARISING FROM STAR-FORMING GALAXIES AT REDSHIFT z {approx} 3-4: LOOKING FOR ANALOGS OF 'STELLAR RE-IONIZERS'

    SciTech Connect (OSTI)

    Vanzella, Eros; Cristiani, Stefano; Nonino, Mario; Guo Yicheng; Giavalisco, Mauro; Grazian, Andrea; Castellano, Marco; Fontana, Adriano; Giallongo, Emanuele; Pentericci, Laura; Galametz, Audrey; Dickinson, Mark; Faber, S. M.; Newman, Jeffrey; Siana, Brian D.

    2012-05-20

    We use the spatially resolved, multi-band photometry in the GOODS South field acquired by the CANDELS project to constrain the nature of candidate Lyman continuum (LyC) emitters at redshift z {approx} 3.7 identified using ultradeep imaging below the Lyman limit (1{sigma} limit of Almost-Equal-To 30 AB in a 2'' diameter aperture). In 19 candidates out of a sample of 20 with flux detected at >3{sigma} level, the light centroid of the candidate LyC emission is offset from that of the Lyman break galaxy (LBG) by up to 1.''5. We fit the spectral energy distribution of the LyC candidates to spectral population synthesis models to measure photometric redshifts and the stellar population parameters. We also discuss the differences in the UV colors between the LBG and the LyC candidates, and how to estimate the escape fraction of ionizing radiation (f{sub esc}) in cases, like in most of our galaxies, where the LyC emission is spatially offset from the host galaxy. In all but one case we conclude that the candidate LyC emission is most likely due to lower redshift interlopers. Based on these findings, we argue that the majority of similar measurements reported in the literature need further investigation before it can be firmly concluded that LyC emission is detected. Our only surviving LyC candidate is an LBG at z = 3.795, which shows the bluest (B - V) color among LBGs at similar redshift, a stellar mass of M {approx} 2 Multiplication-Sign 10{sup 9} M{sub Sun }, weak interstellar absorption lines, and a flat UV spectral slope with no Ly{alpha} in emission. We estimate its f{sub esc} to be in the range 25%-100%, depending on the dust and intergalactic attenuation.

  8. ULTRA-DEEP HUBBLE SPACE TELESCOPE IMAGING OF THE SMALL MAGELLANIC CLOUD: THE INITIAL MASS FUNCTION OF STARS WITH M {approx}< 1 M {sub Sun}

    SciTech Connect (OSTI)

    Kalirai, Jason S.; Anderson, Jay; Dotter, Aaron; Reid, I. Neill; Richer, Harvey B.; Fahlman, Gregory G.; Hansen, Brad M. S.; Rich, R. Michael; Hurley, Jarrod; Shara, Michael M. E-mail: jayander@stsci.edu E-mail: richer@astro.ubc.ca E-mail: hansen@astro.ucla.edu E-mail: jhurley@swin.edu.au

    2013-02-15

    We present a new measurement of the stellar initial mass function (IMF) based on ultra-deep, high-resolution photometry of >5000 stars in the outskirts of the Small Magellanic Cloud (SMC) galaxy. The Hubble Space Telescope (HST) Advanced Camera for Surveys observations reveal this rich, cospatial population behind the foreground globular cluster 47 Tuc, which we targeted for 121 HST orbits. The stellar main sequence of the SMC is measured in the F606W, F814W color-magnitude diagram down to {approx}30th magnitude, and is cleanly separated from the foreground star cluster population using proper motions. We simulate the SMC population by extracting stellar masses (single and unresolved binaries) from specific IMFs and converting those masses to luminosities in our bandpasses. The corresponding photometry for these simulated stars is drawn directly from a rich cloud of 4 million artificial stars, thereby accounting for the real photometric scatter and completeness of the data. Over a continuous and well-populated mass range of M = 0.37-0.93 M {sub Sun} (e.g., down to a {approx}75% completeness limit at F606W = 28.7), we demonstrate that the IMF is well represented by a single power-law form with slope {alpha} = -1.90 ({sup +0.15} {sub -0.10}) (3{sigma} error) (e.g., dN/dM{proportional_to} M {sup {alpha}}). This is shallower than the Salpeter slope of {alpha} = -2.35, which agrees with the observed stellar luminosity function at higher masses. Our results indicate that the IMF does not turn over to a more shallow power-law form within this mass range. We discuss implications of this result for the theory of star formation, the inferred masses of galaxies, and the (lack of a) variation of the IMF with metallicity.

  9. Crystal structure of lanthanum bismuth silicate Bi{sub 2-x}La{sub x}SiO{sub 5} (x{approx}0.1)

    SciTech Connect (OSTI)

    Georges, Samuel . E-mail: samuel.georges@lepmi.inpg.fr; Goutenoire, Francois; Lacorre, Philippe

    2006-12-15

    A melting and glass recrystallization route was carried out to stabilize a new tetragonal form of Bi{sub 2}SiO{sub 5} with bismuth partially substituted by lanthanum. The crystal structure of Bi{sub 2-x}La{sub x}SiO{sub 5} (x{approx}0.1) was determined from powder X-ray and neutron diffraction data (space group I4/mmm, a=b=3.8307(3)A, c=15.227(1)A, V=224.18A{sup 3}, Z=2; reliability factors: R{sub Bragg}=5.65%, R{sub p}=14.6%, R{sub wp}=16.8%, R{sub exp}=8.3%, {chi}{sup 2}=8.3 (X-ray) and R{sub Bragg}=2.40%, R{sub p}=8.1%, R{sub wp}=7.5%, R{sub exp}=4.2%, {chi}{sup 2}=3.3 (neutrons); 11 structural parameters refined). The main effect of lanthanum substitution is to introduce, by removing randomly some bismuth 6s{sup 2} lone pairs, a structural disorder in the surroundings of (Bi{sub 2}O{sub 2}){sup 2+} layers, that is in the (SiO{sub 3}){sup 2-} pyroxene files arrangement. It results in a symmetry increase relatively to the parent compound Bi{sub 2}SiO{sub 5}, which is orthorhombic. The two structures are compared.

  10. DYNAMICAL STRUCTURE OF THE MOLECULAR INTERSTELLAR MEDIUM IN AN EXTREMELY BRIGHT, MULTIPLY LENSED z {approx_equal} 3 SUBMILLIMETER GALAXY DISCOVERED WITH HERSCHEL

    SciTech Connect (OSTI)

    Riechers, Dominik A.; Cooray, A.; Carpenter, J. M.; Bock, J.; Omont, A.; Neri, R.; Cox, P.; Harris, A. I.; Baker, A. J.; Frayer, D. T.; Auld, R.; Aussel, H.; Chanial, P.; Blundell, R.; Brisbin, D.; Burgarella, D.; Chapman, S. C.; Clements, D. L.

    2011-05-20

    We report the detection of CO(J = 5 {yields} 4), CO(J = 3 {yields} 2), and CO(J = 1 {yields} 0) emission in the strongly lensed, Herschel/SPIRE-selected submillimeter galaxy (SMG) HERMES J105751.1+573027 at z = 2.9574 {+-} 0.0001, using the Plateau de Bure Interferometer, the Combined Array for Research in Millimeter-wave Astronomy, and the Green Bank Telescope. The observations spatially resolve the molecular gas into four lensed images with a maximum separation of {approx}9'' and reveal the internal gas dynamics in this system. We derive lensing-corrected CO line luminosities of L'{sub CO(1-0)} = (4.17 {+-} 0.41), L'{sub CO(3-2)} = (3.96 {+-} 0.20), and L'{sub CO(5-4)} = (3.45 {+-} 0.20) x 10{sup 10} ({mu}{sub L}/10.9){sup -1} K km s{sup -1} pc{sup 2}, corresponding to luminosity ratios of r{sub 31} = 0.95 {+-} 0.10, r{sub 53} = 0.87 {+-} 0.06, and r{sub 51} = 0.83 {+-} 0.09. This suggests a total molecular gas mass of M{sub gas} = 3.3x10{sup 10} ({alpha}{sub CO}/0.8) ({mu}{sub L}/10.9){sup -1} M{sub sun}. The gas mass, gas mass fraction, gas depletion timescale, star formation efficiency, and specific star formation rate are typical for an SMG. The velocity structure of the gas reservoir suggests that the brightest two lensed images are dynamically resolved projections of the same dust-obscured region in the galaxy that are kinematically offset from the unresolved fainter images. The resolved kinematics appear consistent with the complex velocity structure observed in major, 'wet' (i.e., gas-rich) mergers. Major mergers are commonly observed in SMGs and are likely to be responsible for fueling their intense starbursts at high gas consumption rates. This study demonstrates the level of detail to which galaxies in the early universe can be studied by utilizing the increase in effective spatial resolution and sensitivity provided by gravitational lensing.