National Library of Energy BETA

Sample records for hrs orig auth

  1. Badger Power Marketing Auth | Open Energy Information

    Open Energy Info (EERE)

    Power Marketing Auth Jump to: navigation, search Name: Badger Power Marketing Auth Place: Wisconsin Phone Number: (715) 526-2920 Facebook: https:www.facebook.compages...

  2. Fort Pierce Utilities Auth | Open Energy Information

    Open Energy Info (EERE)

    Utilities Auth Jump to: navigation, search Name: Fort Pierce Utilities Auth Place: Florida Phone Number: (772) 466-1600 Website: www.fpua.com Outage Hotline: (772) 466-1600...

  3. Vinton Public Power Auth | Open Energy Information

    Open Energy Info (EERE)

    Power Auth Place: Louisiana Phone Number: (337) 589-7453 Website: cityofvinton.comhtmlservices Outage Hotline: (337) 589-7453 References: EIA Form EIA-861 Final Data File...

  4. Anadarko Public Works Auth | Open Energy Information

    Open Energy Info (EERE)

    File for 2010 - File1a" Retrieved from "http:en.openei.orgwindex.php?titleAnadarkoPublicWorksAuth&oldid880476" Feedback Contact needs updating Image needs updating...

  5. Property:Incentive/Auth6Link | Open Energy Information

    Open Energy Info (EERE)

    Auth6Link Jump to: navigation, search Property Name IncentiveAuth6Link Property Type URL Pages using the property "IncentiveAuth6Link" Showing 25 pages using this property....

  6. Property:Incentive/Auth7Link | Open Energy Information

    Open Energy Info (EERE)

    Auth7Link Jump to: navigation, search Property Name IncentiveAuth7Link Property Type URL Description Url link to authority. Pages using the property "IncentiveAuth7Link" Showing...

  7. Property:Incentive/Auth9Link | Open Energy Information

    Open Energy Info (EERE)

    Auth9Link Jump to: navigation, search Property Name IncentiveAuth9Link Property Type URL Description Url link to authority. Pages using the property "IncentiveAuth9Link" Showing...

  8. Property:Incentive/Auth11Link | Open Energy Information

    Open Energy Info (EERE)

    1Link Jump to: navigation, search Property Name IncentiveAuth11Link Property Type URL Description Url link to authority Pages using the property "IncentiveAuth11Link" Showing 20...

  9. Property:Incentive/Auth5Link | Open Energy Information

    Open Energy Info (EERE)

    "IncentiveAuth5Link" Showing 25 pages using this property. (previous 25) (next 25) A Alternative Energy Portfolio Standard (Pennsylvania) + http:www.puc.state.pa.usPcDocs...

  10. Tohono O'Odham Utility Auth | Open Energy Information

    Open Energy Info (EERE)

    Available References "EIA Form EIA-861 Final Data File for 2010 - File1a" Retrieved from "http:en.openei.orgwindex.php?titleTohonoO%27OdhamUtilityAuth&oldid877781...

  11. V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability

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

    | Department of Energy 6: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability September 6, 2013 - 4:36am Addthis PROBLEM: A vulnerability has been reported in the CentralAuth extension for MediaWiki, which can be exploited by malicious people to bypass certain security restrictions. PLATFORM: MediaWiki CentralAuth Extension ABSTRACT: A vulnerability has been reported in the CentralAuth extension for

  12. Hawaii HRS 269 Public Utilities Commission | Open Energy Information

    Open Energy Info (EERE)

    convenience and necessity Hawaii HRS 269-141 Definitions under Part IX: Electric Reliability Published NA Year Signed or Took Effect 2013 Legal Citation Not provided DOI Not...

  13. H.R.S. 277 - Energy Corridors | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 277 - Energy CorridorsLegal Abstract This statute outlines the law pertaining to...

  14. H.R.S. 91 - Administrative Procedure | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 91 - Administrative ProcedureLegal Abstract This statute governs administrative...

  15. H.R.S. 205 - Land Use | Open Energy Information

    Open Energy Info (EERE)

    5 - Land Use Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 205 - Land UseLegal Published NA Year Signed or Took Effect...

  16. max walltime for "low" queue is increased to 24 hrs on Hopper

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

    max walltime for low queue is increased to 24 hrs on Hopper max walltime for low queue is increased to 24 hrs on Hopper May 31, 2012 by Helen He (0 Comments) We have increased the...

  17. H.R.S. 195D-21 - Habitat Conservation Plans | Open Energy Information

    Open Energy Info (EERE)

    H.R.S. 195D-21 - Habitat Conservation Plans Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 195D-21 - Habitat Conservation...

  18. H.R.S. 343 - Environmental Impact Statements | Open Energy Information

    Open Energy Info (EERE)

    H.R.S. 343 - Environmental Impact StatementsLegal Abstract This statutory chapter sets forth the requirements for environmental impact statements. Published NA Year Signed or...

  19. max walltime for low queue is increased to 24 hrs on Hopper

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

    max walltime for low queue is increased to 24 hrs on Hopper max walltime for low queue is increased to 24 hrs on Hopper May 31, 2012 by Helen He We have increased the max walltime for the low queue on Hopper from 12 to 24 hrs. Subscribe via RSS Subscribe Browse by Date February 2013 September 2012 August 2012 May 2012 April 2012 March 2012 February 2012 January 2012 November 2011 October 2011 September 2011 August 2011 July 2011 June 2011 May 2011 April 2011 March 2011 February 2011 January 2011

  20. H.R.S. 183C - Conservation District Zoning | Open Energy Information

    Open Energy Info (EERE)

    183C - Conservation District Zoning Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 183C - Conservation District...

  1. Hawaii HRS 269-1, Definitions for Public Utilities | Open Energy...

    Open Energy Info (EERE)

    -1, Definitions for Public Utilities Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: Hawaii HRS 269-1, Definitions for Public...

  2. H.R.S. 269 - Public Utilities Commission | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 269 - Public Utilities CommissionLegal Abstract This section of the Hawaii Revised...

  3. H.R.S. 201N - Renewable Energy Facility Siting Process | Open...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 201N - Renewable Energy Facility Siting ProcessLegal Published NA Year Signed or...

  4. H.R.S. 182-6 - Mineral Exploration | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 182-6 - Mineral ExplorationLegal Published NA Year Signed or Took Effect 2012 Legal...

  5. H.R.S. 128E - Hawaii Emergency Planning and Community Right-to...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 128E - Hawaii Emergency Planning and Community Right-to-Know ActLegal Published NA...

  6. H.R.S. 205-3.1 - Amendments to District Boundaries | Open Energy...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 205-3.1 - Amendments to District BoundariesLegal Published NA Year Signed or Took...

  7. H.R.S. 6E - Historic Preservation | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 6E - Historic PreservationLegal Abstract This statute provides for the preservation...

  8. H.R.S. 342D - Water Pollution | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 342D - Water PollutionLegal Abstract This statute provides for regulating water...

  9. H.R.S. 226 - Hawaii State Planning Act | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 226 - Hawaii State Planning ActLegal Published NA Year Signed or Took Effect 2014...

  10. H.R.S. 174 - Water and Land Development | Open Energy Information

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 174 - Water and Land DevelopmentLegal Published NA Year Signed or Took Effect 1961...

  11. H.R.S. 269-7.5 - Certificates of Public Convenience and Necessity...

    Open Energy Info (EERE)

    -7.5 - Certificates of Public Convenience and Necessity Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 269-7.5 -...

  12. H.R.S. 205-5 - Zoning | Open Energy Information

    Open Energy Info (EERE)

    05-5 - Zoning Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: H.R.S. 205-5 - ZoningLegal Published NA Year Signed or Took Effect...

  13. The. tau. one-prong problem and recent measurements by the HRS (High Resolution Spectrometer) collaboration

    SciTech Connect (OSTI)

    Repond, J.

    1989-05-22

    We summarize recent measurements by the HRS collaboration of the topological branching fractions, the production cross section, the lifetime, and the rate into electrons of the {tau} lepton. An inconsistency with theoretical expectations persists at the level of two standard deviations. 11 refs., 2 figs., 4 tabs.

  14. Massachusetts Bay Trans Auth | Open Energy Information

    Open Energy Info (EERE)

    NPCC Yes Operates Generating Plant Yes Activity Generation Yes Activity Wholesale Marketing Yes Activity Retail Marketing Yes Alt Fuel Vehicle Yes Alt Fuel Vehicle2 Yes This...

  15. Oklahoma Municipal Power Auth | Open Energy Information

    Open Energy Info (EERE)

    -Power-Authority-OMPA125994407444079 Outage Hotline: 405-340-5047 or 580-763-8047 Outage Map: ompa.comoutages References: EIA Form EIA-861 Final Data File for 2010 - File1a1...

  16. Lafayette Public Power Auth | Open Energy Information

    Open Energy Info (EERE)

    Data Utility Id 11235 Utility Location Yes Ownership P NERC Location SPP NERC SPP Yes RTO SPP Yes Activity Generation Yes Activity Buying Transmission Yes This article is a...

  17. Property:Incentive/Auth16Link | Open Energy Information

    Open Energy Info (EERE)

    Q Qualifying RPS State Export Markets (Indiana) + http:en.openei.orgwikiAlternativeandRenewableEnergyPortfolioStandard%28WestVirginia%29 + Qualifying RPS State...

  18. South Carolina Pub Serv Auth | Open Energy Information

    Open Energy Info (EERE)

    27,706.206 533,512.496 31 53,256.403 832,770.712 162,123 2009-02 14,268.232 169,091.694 132,140 11,967.816 149,332.915 30,448 25,859.722 493,500.038 31 52,095.77 811,924.647...

  19. Vermont Public Pwr Supply Auth | Open Energy Information

    Open Energy Info (EERE)

    Website: www.vppsa.com Facebook: https:www.facebook.compagesVermont-Public-Power-Supply-Authority Outage Hotline: 802-244-7678 Outage Map: vtoutages.com...

  20. Virgin Islands Wtr&Pwr Auth | Open Energy Information

    Open Energy Info (EERE)

    form View source History View New Pages Recent Changes All Special Pages Semantic SearchQuerying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with...

  1. 3210T1 WorkPlanning,Control&Auth;

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

    http://www.jlab.org/div_dept/dir_off/public_affairs/logo/JLab_logo_text_white1.jpg TITLE: ES&H Manual DOCUMENT ID: 3210 Appendix T1 Work Planning, Control, and Authorization Procedure 1.0 Purpose This procedure defines work processes and controls and outlines how Jefferson Lab implements its Integrated Safety Management System (ISMS) into the planning and execution of work. These steps include: * Defining the Scope of Work * Analyzing the Hazards * Developing and Implementing Hazard Controls

  2. Property:Incentive/Auth10Link | Open Energy Information

    Open Energy Info (EERE)

    + Qualifying RPS State Export Markets (Illinois) + http:en.openei.orgwikiAlternativeEnergyPortfolioStandard + Qualifying RPS State Export Markets (Indiana) +...

  3. Property:Incentive/AuthDtEff | Open Energy Information

    Open Energy Info (EERE)

    25) (next 25) 3 30% Business Tax Credit for Solar (Vermont) + 2008-07-01 + A Abatement of Air Pollution: Air Pollution Control Equipment and Monitoring Equipment Operation...

  4. Property:Incentive/Auth2Link | Open Energy Information

    Open Energy Info (EERE)

    searchdocument?fqid:171721&qIowa%20Air%20Emissions%20Assistance%20Program + Air Pollution Control (Indiana) + http:www.in.govlegislativeiaciactitle?iact326 +...

  5. Property:Incentive/AuthDtEnact | Open Energy Information

    Open Energy Info (EERE)

    (Maine) + 2004 + Air Permitting for Stationary Sources (New Hampshire) + 1979 + Air Pollution Control (Indiana) + 2013 + Air Pollution Control (North Dakota) + 1990 + Air...

  6. Property:Incentive/AuthLink | Open Energy Information

    Open Energy Info (EERE)

    (Vermont) + http:www.nrb.state.vt.uswrppublicationswqs.pdf + A Abatement of Air Pollution: Air Pollution Control Equipment and Monitoring Equipment Operation...

  7. Microsoft Word - GFC-Allocating-Loan-auth.doc

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

    U.S. Department of Energy Office of Inspector General Office of Audit Services W76 Life Extension Project DOE/IG-0729 May 2006 REPORT ON W76 LIFE EXTENSION PROJECT TABLE OF CONTENTS W76 Life Extension Project Details of Finding....................................................................................1 Recommendations....................................................................................6

  8. Property:Incentive/Auth13Link | Open Energy Information

    Open Energy Info (EERE)

    + Qualifying RPS State Export Markets (New Jersey) + http:en.openei.orgwikiAlternativeandRenewableEnergyPortfolioStandard%28WestVirginia%29 + Qualifying RPS...

  9. Property:Incentive/Auth14Link | Open Energy Information

    Open Energy Info (EERE)

    ConservedEnergyObjective%28SouthDakota%29 + Qualifying RPS State Export Markets (New York) + http:en.openei.orgwikiRenewableEnergyStandard%28RhodeIsland%29 +...

  10. Property:Incentive/Auth4Link | Open Energy Information

    Open Energy Info (EERE)

    Energy Tax Credit (Oregon) + http:www.leg.state.or.usors469.html + C California Solar Initiative - PV Incentives (California) + http:docs.cpuc.ca.govPublished...

  11. Property:Incentive/Auth3Link | Open Energy Information

    Open Energy Info (EERE)

    (California) + http:docs.cpuc.ca.govPUBLISHEDFINALDECISION139683.htm + California Solar Initiative - PV Incentives (California) + http:www.cpuc.ca.govpublished...

  12. Property:Incentive/Auth8Link | Open Energy Information

    Open Energy Info (EERE)

    (New York) + http:assembly.state.ny.usleg?defaultfld&bnA09560&term2011&SummaryY&ActionsY&TextY + Q Qualifying RPS State Export Markets (Connecticut) + http:...

  13. Microsoft Word - S05516_AttachD1_OrigLndfl_MM_Plan.doc

    Office of Legacy Management (LM)

    Rocky Flats Site Original Landfill Monitoring and Maintenance Plan September 2009 LMS/RFS/S05516-1.0 This page intentionally left blank LMS/RFS/S05516-1.0 U.S. Department of Energy Rocky Flats Site Original Landfill Monitoring and Maintenance Plan September 2009 This page intentionally left blank U.S. Department of Energy Original Landfill Monitoring and Maintenance Plan-Rocky Flats Site September 2009 Doc. No. S05516-1.0 Page i Contents

  14. F:\\SHARE\\SE\\Web_Origs\\Wrk_Jan\\00-083\\U00321.PDF

    Office of Legacy Management (LM)

    Environmental Assessment of Ground-Water Compliance at the Falls City, Texas, Uranium Mill ... DOE Grand Junction Office Page iii EA of Ground-Water Compliance at Falls City Final March ...

  15. F:\\SHARE\\SE\\Web_Origs\\Wrk_Jan\\00-055\\U0027401.PDF

    Office of Legacy Management (LM)

    9-TAR Phase I Ground Water Compliance Action Plan for the Tuba City, Arizona, UMTRA Site ... DOEGrand Junction Office Phase I Ground Water Compliance Action Plan for Tuba City, ...

  16. F:\\SHARE\\SE\\Web_Origs\\Wrk_Jan\\00-075\\U0027603.WP6

    Office of Legacy Management (LM)

    Environmental Assessment of Ground Water Compliance at the Tuba City Uranium Mill Tailings ... Document Number U0027603 DOE Grand Junction Office Page iii EA of Ground Water Compliance ...

  17. F:\\SHARE\\SE\\Web_Origs\\Wrk_Jan\\mvsowp\\MONPIP.PDF

    Office of Legacy Management (LM)

    7.1 UMTRA Ground Water Project Public Involvement Plan for the Environmental Assessment of Ground Water Compliance at the Monument Valley, Arizona, Uranium Mill Tailings Site July ...

  18. F:\\SHARE\\SE\\Web_Origs\\Wrk_Jan\\00-082\\PIP2FCT.PDF

    Office of Legacy Management (LM)

    GWFCT 11.6.2 Public Involvement Plan for the Environmental Assessment of Ground Water Compliance Activities at the Uranium Mill Tailings Site, Falls City, Texas November 1997 ...

  19. F:\\SHARE\\SE\\Web_Origs\\Wrk_Jan\\00-084\\U0013801

    Office of Legacy Management (LM)

    Site Observational Work Plan for the UMTRA Project Site at Riverton, Wyoming February 1998 Prepared for U.S. Department of Energy Albuquerque Operations Office Grand Junction ...

  20. File:HRS 11-62.pdf | Open Energy Information

    Open Energy Info (EERE)

    464 600 pixels. Go to page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51...

  1. V-236: MediaWiki CentralAuth Extension Authentication Bypass...

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

    The vulnerability is caused due to an error when handling auto-logins and can be exploited to bypass the authentication mechanism by providing a valid username within the ...

  2. H.R.S. 182-1 - Reservation and Disposition of Government Mineral...

    Open Energy Info (EERE)

    Government Mineral Rights, DefinitionsLegal Abstract Hawaii statute governing the administration of government mineral rights, including rights for geothermal resources. Published...

  3. CO_CODE","PLT_CODE","YEAR","MONTH","BLANK1","BOM_DIST","ORIG_ST","MINE_TYPE","BL

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

    0,01,,,,,,07,48,,3,"NG",,4,0,218000,1034,0,0,279.5,,1 050010,3451,90,01,,,,,,07,48,,2,"FO5",,7,9,5000,148000,0.5,0.1,265.6,,1 050010,3452,90,01,,,,,,07,48,,3,"NG",,4,0,1062000,1037,0,0,279.5,,1 050010,3452,90,01,,,,,,07,48,,2,"FO5",,7,9,2900,148000,0.5,0.1,265.6,,1 050010,3453,90,01,,,,,,07,48,,2,"FO5",,7,9,13500,148000,0.5,0.1,265.6,,1 050010,3453,90,01,,,,,,07,48,,3,"NG",,4,0,2469000,1015,0,0,279.5,,1

  4. CO_CODE","PLT_CODE","YEAR","MONTH","BLANK1","BOM_DIST","ORIG_ST","MINE_TYPE","BL

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

    1,91,01,,,,,,07,48,,3,"NG",,4,0,1000,1024,0,0,261.7,,1 050010,3452,91,01,,,,,,07,48,,3,"NG",,4,0,1532000,1030,0,0,261.7,,1 050010,3452,91,01,,,,,,07,48,,2,"FO2",,7,9,10000,138000,0.5,0.1,564,,1 050010,3452,91,01,,,,,,07,48,,2,"FO5",,7,9,7000,148000,0.5,0.1,510.8,,1 050010,3453,91,01,,,,,,07,48,,3,"NG",,4,0,2079000,1021,0,0,261.7,,1 050010,3454,91,01,,,,,,07,48,,3,"NG",,4,0,360000,1017,0,0,261.7,,1

  5. CO_CODE","PLT_CODE","YEAR","MONTH","BLANK1","BOM_DIST","ORIG_ST","MINE_TYPE","BL

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

    2,92,01,,,,,,07,48,,3,"NG",,4,0,1887000,1041,0,0,260.2,,1 050010,3453,92,01,,,,,,07,48,,3,"NG",,4,0,1248000,1025,0,0,260.2,,1 050010,3453,92,01,,,,,,07,48,,2,"FO5",,7,9,23000,148000,0.5,0.1,290.7,,1 050010,3454,92,01,,,,,,07,48,,3,"NG",,4,0,798000,1021,0,0,260.2,,1 050010,3455,92,01,,,,,,07,48,,3,"NG",,4,0,22000,1012,0,0,260.2,,1 050010,3489,92,01,,,,,,07,48,,3,"NG",,4,0,123000,1025,0,0,260.2,,1

  6. http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TVM-3SPGX50-3Y-3&_cdi=5538&_orig=search&_coverDate=04%2F14%2F1997&_qd

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

  7. Mathematical Deductions from Some Rules Concerning High-Energy Total Cross Sections

    DOE R&D Accomplishments [OSTI]

    Yang, C. N.

    1962-07-23

    Mathematical implications of the Pomeranchuk rule and the Pomeranchuk- Okun rule are discussed. (auth)

  8. Property:DayQuantity | Open Energy Information

    Open Energy Info (EERE)

    are not known. Acceptable units (and their conversions) are: 1 day,Day,days,Days,DAY,DAYS,d,D 24 hour,hours,Hour,Hours,hr,hrs,HOUR,HOURS,HR,HRS 1440 minute,minutes,Minute,Minutes,m...

  9. Queues and Scheduling Policies

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

    xfer10 xfer -- -- 12 hrs -- 4 4 0 killable11 killable 1-682 1-16,368 48 hrs 4 12 12 1 serial12 serial 1 1 48 hrs -- 50 50 1 * - Charge factor is the number of MPP hours charged...

  10. Queues and Policies

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

    low low 1-32 1-256 24 hrs 4 5 3 0.75 scavenger scavenger 1-32 1-256 6 hrs 5 2 1 0.0 serial serial 1 1 48 hrs 3 150 20 1.5 * - Charge factor is the number of MPP hours charged...

  11. Effects of chronic gamma radiation on seed production in an oak...

    Office of Scientific and Technical Information (OSTI)

    of radiation, but were sporadic in appearance. It more is suggested that many of the radiation damaged acorns abscised from the tree and thus escaped detection. (auth) less...

  12. Stairs, G. R. BIOLOGY AND MEDICINE; AGE; DIFFRACTION; DIFFUSION...

    Office of Scientific and Technical Information (OSTI)

    levels of radiation, but were sporadic in appearance. It is suggested that many of the radiation damaged acorns abscised from the tree and thus escaped detection. (auth) Yale...

  13. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    to the measurements auth Maryland Univ College Park MD United States US Atomic Energy Commission AEC United States English Conference Conference American Physical Society...

  14. Technical report 348 Fann, H.L.; Detenbeck, R.W. PHYSICS; ANGULAR

    Office of Scientific and Technical Information (OSTI)

    the measurements. (auth) Maryland. Univ., College Park, MD (United States) US Atomic Energy Commission (AEC) United States 1964-01-01 English Conference Conference: American...

  15. Electrically insulating feed-through for cryogenic applications

    DOE Patents [OSTI]

    Bemberger, J.A.; Brown, D.P.

    1975-09-01

    This patent relates to an electrical connector (suitable for cryogenic applications) of virtually all metal construction employing anodized aluminum rings to provide electrical isolation. (auth)

  16. Radiation Protection and Safety Training | Environmental Radiation...

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

    Radiation Protection and Safety Training (3 hrs) Instructors: John Seaman and Neil Miller ... with an introduction to the fundamentals of ionizing radiation protection and safety. ...

  17. Enabling Small-Scale Biomass Gasification for Liquid Fuel Production

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

    interconnects, 50+ experienced PhDMSBS engineers and operators, 247 operations, Autocad and Aspen Modeling * Pilot plant experience >30,000 hrs Environment and Energy Group ...

  18. RAPID/Roadmap/1-HI-a | Open Energy Information

    Open Energy Info (EERE)

    implementation of policies adopted by the legislature (H.R.S. sec. 226-57). Relevant to geothermal resource development, the legislature outlined objectives and policies for...

  19. On the Elastic Scattering of Heavy Nuclei (Journal Article) ...

    Office of Scientific and Technical Information (OSTI)

    data can be fitted quite well. (auth) Authors: McIntosh, J. S. ; Park, S. C. ; Turner, J. E. Publication Date: 1960-01-01 OSTI Identifier: 12434901 Report Number(s): ...

  20. Nonaqueous actinide hydride dissolution and production of actinide $beta$- diketonates

    DOE Patents [OSTI]

    Crisler, L.R.

    1975-11-11

    Actinide beta-diketonate complex molecular compounds are produced by reacting a beta-diketone compound with a hydride of the actinide material in a mixture of carbon tetrachloride and methanol. (auth)

  1. Method of forming high density oxide pellets by hot pressing at 50$sup 0$ to 100$sup 0$C above the cubic to monoclinic phase transformation temperature

    DOE Patents [OSTI]

    Pasto, A.E.

    1975-08-01

    A process for low temperature sintering of rare earth and actinide oxides which have a cubic to monoclinic transformation is described. The process involves hot pressing a powder compact at a temperature just above the transformation temperature. (auth)

  2. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    levels of radiation but were sporadic in a ppearance It is suggested that many of the radiation damaged acorns abscised from the tree and thus escaped detection auth Yale Univ...

  3. Low temperature, low pressure hydrogen gettering

    DOE Patents [OSTI]

    Anderson, D.R.; Courtney, R.L.; Harrah, L.A.

    1975-07-22

    A system is described for the gettering of hydrogen and its isotopes. The gettering materials are painted or coated onto, or otherwise disposed in an area or volume from which hydrogen is to be removed. (auth)

  4. Book2.xls?attach=1

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

    Units 1&2 Off, Units 3,4,5 on 12 hrs @ 100% load and 12 hrs at 35% load. (100% load 107 MW). SO2 0.22 lbMBtu on all three units. Run 0600 - 1800 at 100% load, and the rest at ...

  5. Low-Dose Hyper-Radiosensitivity Is Not a Common Effect in Normal Asynchronous and G2-Phase Fibroblasts of Cancer Patients

    SciTech Connect (OSTI)

    S?onina, Dorota; Biesaga, Beata; Janecka, Anna; Kabat, Damian; Bukowska-Strakova, Karolina; Gasi?ska, Anna

    2014-02-01

    Purpose: In our previous study, using the micronucleus assay, a low-dose hyper-radiosensitivity (HRS)-like phenomenon was observed for normal fibroblasts of 2 of the 40 cancer patients investigated. In this article we report, for the first time, the survival response of primary fibroblasts from 25 of these patients to low-dose irradiation and answer the question regarding the effect of G2-phase enrichment on HRS elicitation. Methods and Materials: The clonogenic survival of asynchronous as well as G2-phase enriched fibroblast populations was measured. Separation of G2-phase cells and precise cell counting was performed using a fluorescence-activated cell sorter. Sorted and plated cells were irradiated with single doses (0.1-4 Gy) of 6-MV x-rays. For each patient, at least 4 independent experiments were performed, and the induced-repair model was fitted over the whole data set to confirm the presence of HRS effect. Results: The HRS response was demonstrated for the asynchronous and G2-phase enriched cell populations of 4 patients. For the rest of patients, HRS was not defined in either of the 2 fibroblast populations. Thus, G2-phase enrichment had no effect on HRS elicitation. Conclusions: The fact that low-dose hyper-radiosensitivity is not a common effect in normal human fibroblasts implies that HRS may be of little consequence in late-responding connective tissues with regard to radiation fibrosis.

  6. White LED with High Package Extraction Efficiency

    Office of Scientific and Technical Information (OSTI)

    ... The microstructure of the sample was characterized by Scanning Electron Microscopy (SEM). ... Fig.12 Glass (DOE 13) heat treated for 8 hrs at 1450 C shows YAG phase. Fig.13 SEM ...

  7. Search for: shape memory* | DOE PAGES

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

    ... at 500C, while aging for 3hrs at 700C produced an alloy with an austenite finish temperature (A f ) of 146C. High-resolution scanning transmission electron microscopy ...

  8. Hopper Featured Announcements

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

    for the low queue on Hopper from 12 to 24 hrs. Read the full post Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 Due to a scheduled maintenance for the...

  9. POST-DEACTIVATION SURVEILLANCE AND MAINTENANCE PLANNING

    Office of Environmental Management (EM)

    ... Four surveillance entries will be made each year on a quarterly basis beginning in February 1995. Surveillance Entries (4) Man-hours Est. Annual Cost () Operations 160 hrs 9,600 ...

  10. X:\\ARM_19~1\\PGS9-17.WPD

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

    the thermal field to the motion field by nonlinear transfer. ... The HRs depend on the vertical structure of the input ... Figure 1 shows heating rates generated by all seven LWR ...

  11. X:\\ARM_19~1\\P273-281.WPD

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

    1. Simulation at 1800 GMT, +6 hrs. A Shallow Convection Parameterization for the Non-Hydrostatic MM5 Mesoscale Model N. L. Seaman, J. S. Kain, and A. Deng Pennsylvania State...

  12. MA AP MA MA MA AP AP MA MA MA AP AP

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

    AP MA MA MA AP AP MA MA MA AP AP low low low AP MA Run PAMM AP Low alpha University Holidays APPAMM Spear Down Hrs S 30 31 S 30 5260 832 6092 2013 2014 Scheduled Hours Users...

  13. Hopper Featured Announcements

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

    for the low queue on Hopper from 12 to 24 hrs. 0 comments | Read the full post Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 | 0 Comments Due to a scheduled...

  14. Microsoft PowerPoint - 1_JESSICA_WHITE-HORTON_NMMSS_2014_JWH...

    National Nuclear Security Administration (NNSA)

    ... F - Indirect lightning effects - Withstand 50 ppm hydrogen fluoride at 90 o F and 90% humidity for 96 hrs - Withstand shock of 1.2 m UF 6 cylinder drop - Functional when exposed to ...

  15. EERE PowerPoint 97-2004 Template: Green Version

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

    Three major hydro-ceramic crystals formed in BNL-formulated thermal shock-resistant cement ... water- quenching for 4 hrs) as thermal shock resistance test; 5) Corrosion rate of ...

  16. RAPID/Geothermal/Exploration/Hawaii | Open Energy Information

    Open Energy Info (EERE)

    process for the proposed drilling activities. Local Exploration Process not available Policies & Regulations H.R.S. 182-6 - Mineral Exploration HAR 13-183 Rules on Leasing and...

  17. Clinch River MRS Task Force Recommendations

    Broader source: Energy.gov [DOE]

    The Clinch River HRS Task Force was appointed in July 1985 by the Roane County Executive and the Oak Ridge City Council to evaluate the Monitored Retrievable Storage (MRS) facility proposed by the...

  18. 1997 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 11, '96 17:00 Tue, Nov 12, '96 13:00 Tue, Nov 19, '96 15:00-Wed, Nov 20, '96 02:00 11 hrs Mon, Dec 02, '96 17:00 Tue, Dec 03, '96 13:00 Mon, Dec 09, '96 06:00-Wed, Dec 11, '96 02:00 44 hrs Mon, Jan 06, 17:00 Tue, Jan 07, 13:00 Mon, Jan 13, 18:00-Wed, Jan 15, 02:00 32 hrs Mon, Jan 20, 17:00 Tue, Jan 21, 13:00 Mon, Jan 27, 06:00-Wed, Jan 29, 02:00 44 hrs Mon, Feb 03, 17:00 Tue, Feb 04,

  19. 1998 SSRL Accelerator Physics Schedule

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

    8 SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Tue, Nov 11, 17:00 Wed, Nov 12, '97 17:00 Mon, Nov 17, '97 18:00-Wed, Nov 19, '97 02:00 32 hrs Mon, Dec 01, '97 17:00 Tue, Dec 02, '97 13:00 Mon, Dec 08, '97 06:00-Wed, Dec 10, '97 02:00 44 hrs Mon, Jan 05, 17:00 Tue, Jan 06, 13:00 Mon, Jan 12, 18:00-Wed, Jan 14, 02:00 32 hrs Fri, Jan 16, 17:00 Tue, Jan 20, 13:00 Mon, Jan 26, 06:00-Wed, Jan 28, 02:00 44 hrs Mon, Feb 02, 17:00 Tue, Feb 03,

  20. 1999 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 30, '98 17:00 Tue, Dec 01, '98 13:00 Mon, Dec 07, '98 06:00-Wed, Dec 09, '98 02:00 44 hrs Mon, Jan 04, 17:00 Tue, Jan 05, 13:00 Mon, Jan 11, 18:00-Wed, Jan 13, 02:00 32 hrs Fri, Jan 15, 17:00 Tue, Jan 19, 13:00 Mon, Jan 25, 06:00-Wed, Jan 27, 02:00 44 hrs Mon, Feb 01, 17:00 Tue, Feb 02, 13:00 Tue, Feb 09, 18:00-Thu, Feb 11, 02:00 32 hrs Tue, Feb 16, 17:00 Wed, Feb 17, 17:00 Mon, Feb

  1. 2000 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 08, '99 17:00 Tue, Nov 09, '99 13:00 Mon, Nov 15, '99 18:00-Wed, Nov 17, '99 02:00 32 hrs Mon, Nov 29, '99 17:00 Tue, Nov 30, '99 13:00 Mon, Dec 06, '99 06:00-Wed, Dec 08, '99 02:00 44 hrs Mon, Jan 03, 17:00 Tue, Jan 04, 13:00 Mon, Jan 10, 18:00-Wed, Jan 12, 02:00 32 hrs Fri, Jan 14, 17:00 Tue, Jan 18, 13:00 Mon, Jan 24, 06:00-Wed, Jan 26, 02:00 44 hrs Mon, Feb 14, 17:00 Tue, Feb 15,

  2. 2001 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 06, '00 17:00 Tue, Nov 07, '00 13:00 Mon, Nov 13, '00 18:00-Wed, Nov 15, '00 02:00 32 hrs Mon, Dec 04, '00 17:00 Tue, Dec 05, '00 13:00 Mon, Dec 11, '00 06:00-Wed, Dec 13, '00 02:00 44 hrs Mon, Jan 01, 17:00 Tue, Jan 02, 13:00 Mon, Jan 08, 18:00-Wed, Jan 10, 02:00 32 hrs Fri, Jan 12, 12:00 Tue, Jan 16, 13:00 Mon, Jan 22, 06:00-Wed, Jan 24, 02:00 44 hrs Mon, Jan 29, 17:00 Tue, Jan 30,

  3. 2002 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 05, '01 17:00 Tue, Nov 06, '01 13:00 Mon, Nov 12, '01 18:00-Wed, Nov 14, '01 02:00 32 hrs Mon, Dec 03, '01 17:00 Tue, Dec 04, '01 13:00 Mon, Dec 10, '01 06:00-Wed, Dec 12, '01 02:00 44 hrs Mon, Dec 17, '01 09:00 Tue, Dec 18, '01 13:00 Mon, Jan 07, 18:00-Wed, Jan 9, 02:00 32 hrs Mon, Jan 14, 12:00 Tue, Jan 15, 13:00 Tue, Jan 22, 06:00-Thu, Jan 24, 02:00 44 hrs Mon, Jan 28, 17:00 Tue,

  4. 2003 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Dec 02, '02 17:00 Tue, Dec 03, '02 13:00 Mon, Dec 09, '02 18:00-Wed, Dec 11, '02 02:00 32 hrs Tue, Jan 07, 09:00 Tue, Jan 07, 13:00 Mon, Jan 13, 18:00-Wed, Jan 15, 02:00 32 hrs Mon, Feb 03, 17:00 Tue, Feb 04, 17:00 Mon, Feb 10, 18:00-Wed, Feb 12, 02:00 32 hrs Mon, Feb 24, 17:00 Tue, Feb 25, 13:00 Mon, Mar 03, 18:00-Wed, Mar 05, 02:00 32 hrs SLAC SSRL SSRL Last Updated: 25 February 2003

  5. Fact #659: January 24, 2011 Fuel Economy Ratings for Vehicles...

    Energy Savers [EERE]

    The Leaf charges at 34 kW-hrs per 100 miles and can go 73 miles on a fully charged battery. The annual electric cost for this vehicle is 561.00. Chevy Volt Graphic of EPA window ...

  6. Modified hazard ranking system for sites with mixed radioactive and hazardous wastes. User manual.

    SciTech Connect (OSTI)

    Hawley, K.A.; Peloquin, R.A.; Stenner, R.D.

    1986-04-01

    This document describes both the original Hazard Ranking System and the modified Hazard Ranking System as they are to be used in evaluating the relative potential for uncontrolled hazardous substance facilities to cause human health or safety problems or ecological or environmental damage. Detailed instructions for using the mHRS/HRS computer code are provided, along with instructions for performing the calculations by hand. Uniform application of the ranking system will permit the DOE to identify those releases of hazardous substances that pose the greatest hazard to humans or the environment. However, the mHRS/HRS by itself cannot establish priorities for the allocation of funds for remedial action. The mHRS/HRS is a means for applying uniform technical judgment regarding the potential hazards presented by a facility relative to other facilities. It does not address the feasibility, desirability, or degree of cleanup required. Neither does it deal with the readiness or ability of a state to carry out such remedial action, as may be indicated, or to meet other conditions prescribed in CERCLA. 13 refs., 13 figs., 27 tabs.

  7. JC3 | Department of Energy

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

    JC3 JC3 RSS September 9, 2013 V-237: TYPO3 Security Bypass Vulnerabilities TYPO3 comes with the possibility to restrict editors to certain file actions (copy, delete, move etc.) and to restrict these actions to be performed in certain locations September 6, 2013 V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability A vulnerability has been reported in the CentralAuth extension for MediaWik that allows people to bypass certain security restrictions September 5, 2013 V-235:

  8. JCAP At A Glance - JCAP

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

    JC3 Bulletin Archive JC3 Bulletin Archive RSS September 9, 2013 V-237: TYPO3 Security Bypass Vulnerabilities TYPO3 comes with the possibility to restrict editors to certain file actions (copy, delete, move etc.) and to restrict these actions to be performed in certain locations September 6, 2013 V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability A vulnerability has been reported in the CentralAuth extension for MediaWik that allows people to bypass certain security

  9. JC3 Bulletin Archive | Department of Energy

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

    JC3 Bulletin Archive JC3 Bulletin Archive RSS September 9, 2013 V-237: TYPO3 Security Bypass Vulnerabilities TYPO3 comes with the possibility to restrict editors to certain file actions (copy, delete, move etc.) and to restrict these actions to be performed in certain locations September 6, 2013 V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability A vulnerability has been reported in the CentralAuth extension for MediaWik that allows people to bypass certain security

  10. Radial blanket assembly orificing arrangement

    DOE Patents [OSTI]

    Patterson, J.F.

    1975-07-01

    A nuclear reactor core for a liquid metal cooled fast breeder reactor is described in which means are provided for increasing the coolant flow through the reactor fuel assemblies as the reactor ages by varying the coolant flow rate with the changing coolant requirements during the core operating lifetime. (auth)

  11. Determination of parameters of a nuclear reactor through noise measurements

    DOE Patents [OSTI]

    Cohn, C.E.

    1975-07-15

    A method of measuring parameters of a nuclear reactor by noise measurements is described. Noise signals are developed by the detectors placed in the reactor core. The polarity coincidence between the noise signals is used to develop quantities from which various parameters of the reactor can be calculated. (auth)

  12. Coaxial short pulsed laser

    DOE Patents [OSTI]

    Nelson, M.A.; Davies, T.J.

    1975-08-01

    This invention relates to a laser system of rugged design suitable for use in a field environment. The laser itself is of coaxial design with a solid potting material filling the space between components. A reservoir is employed to provide a gas lasing medium between an electrode pair, each of which is connected to one of the coaxial conductors. (auth)

  13. Self-consistent Models of Strong Interaction with Chiral Symmetry

    DOE R&D Accomplishments [OSTI]

    Nambu, Y.; Pascual, P.

    1963-04-01

    Some simple models of (renormalizable) meson-nucleon interaction are examined in which the nucleon mass is entirely due to interaction and the chiral ( gamma {sub 5}) symmetry is "broken'' to become a hidden symmetry. It is found that such a scheme is possible provided that a vector meson is introduced as an elementary field. (auth)

  14. Armor of cermet with metal therein increasing with depth

    DOE Patents [OSTI]

    Wilkins, M.L.; Holt, A.C.; Cline, C.F.; Foreschner, K.E.

    1973-07-01

    The system described consists of a ceramic matrix having a gradient of fine ductile metallic particles dispersed therein in an amount of from 0.0%, commencing at the front or impact surface of the armor, to about 2 to 15% by volume along the interface to the back of the system. (auth)

  15. Pauli Principle and Pion Scattering

    DOE R&D Accomplishments [OSTI]

    Bethe, H. A.

    1972-10-01

    It is pointed out that if the Pauli principle is taken into account in the discussion of pion scattering by complex nuclei (as it ought, of course, to be) some rather implausible consequences of some earlier treatments of this problem can be avoided. (auth)

  16. Process for electroslag refining of uranium and uranium alloys

    DOE Patents [OSTI]

    Lewis, P.S. Jr.; Agee, W.A.; Bullock, J.S. IV; Condon, J.B.

    1975-07-22

    A process is described for electroslag refining of uranium and uranium alloys wherein molten uranium and uranium alloys are melted in a molten layer of a fluoride slag containing up to about 8 weight percent calcium metal. The calcium metal reduces oxides in the uranium and uranium alloys to provide them with an oxygen content of less than 100 parts per million. (auth)

  17. Radioisotopic heat source

    DOE Patents [OSTI]

    Jones, G.J.; Selle, J.E.; Teaney, P.E.

    1975-09-30

    Disclosed is a radioisotopic heat source and method for a long life electrical generator. The source includes plutonium dioxide shards and yttrium or hafnium in a container of tantalum-tungsten-hafnium alloy, all being in a nickel alloy outer container, and subjected to heat treatment of from about 1570$sup 0$F to about 1720$sup 0$F for about one h. (auth)

  18. Termination for superconducting power transmission systems

    DOE Patents [OSTI]

    Forsyth, E.B.; Jensen, J.E.

    1975-08-26

    This patent relates to a cold, electrical gradient, terminal section for a superconducting cable for alternating current power transmission. A cold electrical gradient section filled with a gaseous coolant acting as an insulator is provided in series with a separate thermal gradient section. (auth)

  19. Recalculation of the Critical Size and Multiplication Constant of a Homogeneous UO{sub 2} - D{sub 2}O Mixtures

    DOE R&D Accomplishments [OSTI]

    Wigner, E. P.; Weinberg, A. M.; Stephenson, J.

    1944-02-11

    The multiplication constant and optimal concentration of a slurry pile is recalculated on the basis of Mitchell`s experiments on resonance absorption. The smallest chain reacting unit contains 45 to 55 m{sup 3}of D{sub 2}O. (auth)

  20. Recalculation of the Critical Size and Multiplication Constant of a Homogeneous UO{sub 2}-D{sub 2}O Mixtures

    DOE R&D Accomplishments [OSTI]

    Wigner, E. P.; Weinberg, A. M.; Stephenson, J.

    1944-02-11

    The multiplication constant and optimal concentration of a slurry pile is recalculated on the basis of Mitchell's experiments on resonance absorption. The smallest chain reacting unit contains 45 to 55 m{sup 3}of d{sub 2}O. (auth).

  1. Intensity of Upward Muon Flux Due to Cosmic-Ray Neutrinos Produced in the Atmosphere

    DOE R&D Accomplishments [OSTI]

    Lee, T. D.; Robinson, H.; Schwartz, M.; Cool, R.

    1963-06-01

    Calculations were performed to determine the upward going muon flux leaving the earth's surface after production by cosmic-ray neutrinos in the crust. Only neutrinos produced in the earth's atmosphere are considered. Rates of the order of one per 100 sq m/day might be expected if an intermediate boson exists and has a mass less than 2 Bev. (auth)

  2. Oil shale ash-layer thickness and char combustion kinetics

    SciTech Connect (OSTI)

    Aldis, D.F.; Singleton, M.F.; Watkins, B.E.; Thorsness, C.B.; Cena, R.J.

    1992-04-15

    A Hot-Recycled-Solids (HRS) oil shale retort is being studied at Lawrence Livermore National Laboratory. In the HRS process, raw shale is heated by mixing it with burnt retorted shale. Retorted shale is oil shale which has been heated in an oxygen deficient atmosphere to pyrolyze organic carbon, as kerogen into oil, gas, and a nonvolatile carbon rich residue, char. In the HRS retort process, the char in the spent shale is subsequently exposed to an oxygen environment. Some of the char, starting on the outer surface of the shale particle, is burned, liberating heat. In the HRS retort, the endothermic pyrolysis step is supported by heat from the exothermic char combustion step. The rate of char combustion is controlled by three resistances; the resistance of oxygen mass transfer through the gas film surrounding the solid particle, resistance to mass transfer through a ash layer which forms on the outside of the solid particles as the char is oxidized and the resistance due to the intrinsic chemical reaction rate of char and oxygen. In order to estimate the rate of combustion of the char in a typical oil shale particle, each of these resistances must be accurately estimated. We begin by modeling the influence of ash layer thickness on the over all combustion rate of oil shale char. We then present our experimental measurements of the ash layer thickness of oil shale which has been processed in the HRS retort.

  3. Po River 3 Unit SO2 Cases.xls?attach=1

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

    4 hrs at full load, 4 hrs at min load, 16 hrs off. Unit 3 at full load, 24 hours On. 0.24 lb/MMbtu for all units. AERMOD- PRIME Monitored Background AERMOD-PRIME + Background NAAQS Distance Direction Ground Elevation Flagpole Elevation X (m) Y (m) m deg m m 3-hour 721 238.4 960 1300 322770.8 4298791.5 182.7 349 6.1 39.6 24-hour 305 21.0 326 365 322787.7 4298786.0 174.8 354 4.6 39.6 Annual 44 15.7 59 80 322787.7 4298786.0 174.8 354 4.6 39.6 3-hour 743 238.4 982 1300 322770.8 4298791.5 182.7 349

  4. Reitveld refinement study of PLZT ceramics

    SciTech Connect (OSTI)

    Kumar, Rakesh; Bavbande, D. V.; Bafna, V. H.; Mohan, D.; Kothiyal, G. P.; Mishra, R.

    2013-02-05

    PLZT ceramics of composition Pb{sub 0.93}La{sub 0.07}(Zr{sub 0.60}Ti{sub 0.40})O{sub 3}, have been milled for 6hrs and 24hrs were prepared by solid state synthesis route. The 6hrs milled and 24hrs milled samples are represented as PLZT-6 and PLZT-24 ceramics respectively. X-ray diffraction (XRD) pattern was recorded at room temperature. The XRD pattern has been analyzed by employing Rietveld refinement method. Phase identification shows that all the peaks observed in PLZT-6 and PLZT-24 ceramics could be indexed to P4mm space group with tetragonal symmetry. The unit cell parameters of 6hrs milled PLZT ceramics are found to be a=b=4.0781(5)A and c=4.0938(7)A and for 24hrs milled PLZT ceramics unit cell parameters are a=b=4.0679(4)A and c=4.1010(5)A . The axial ratio c/a and unit cell volume of PLZT-6 are 1.0038 and 68.09(2)A{sup 3} respectively. In PLZT-24 samples, the axial ratio c/a value is 1.0080 which is little more than that of the 6hr milled PLZT sample whereas the unit cell volume decrease to 67.88 (1) A{sup 3}. An average crystallite size was estimated by using Scherrer's formula. Dielectric properties were obtained by measuring the capacitance and tand loss using Stanford LCR meter.

  5. Richard Gerber & Clayton Bagwell! NUG Business Meeting!

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

    1 - Allocations Summary * How the NERSC pie is distributed - A li'le history * DOE Offices & Programs * NERSC reserves * The ERCAP process * How user accounts and allocaBons work * What happens when user/repo run out of Bme * Q & A - 2 - Allocations History 0 500000000 1E+09 1.5E+09 2E+09 2.5E+09 3E+09 3.5E+09 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 NERSC DOE ProducEon - 3 - 3 Billion Hrs 55 Million Hrs - 4 - 2017 Outlook * Cori Phase 2 will arrive this

  6. Reliability and durability enhancement for fossil power units` main equipment metal

    SciTech Connect (OSTI)

    Rezinskikh, V.F.; Grin, E.A.; Zlepko, V.F.

    1999-11-01

    By the 90s, the design service life of 100,000 hrs, initially specified for boilers and turbines of power units, had been exhausted by almost 75% of the total number of operating units, and for a quarter of them the operating time was over 200,000 hrs. Today`s economic situation in this country prevents wide-scale replacement of the old equipment. Thus, maintaining operability of the installed equipment while meeting the reliability and safety requirements is of great importance.

  7. Hopper Featured Announcements

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

    June 2011 Hopper batch walltime increase and new xfer queue June 29, 2011 by Helen He There are two batch queue configuration changes on Hopper: 1) User jobs using fewer than 4,096 nodes can now run for up to 36 hrs. In particular, the max wall time limits for reg_small (1-683 nodes), reg_med (684-2,048 nodes), and reg_big (2,049-4,096 nodes) jobs have been increased from 24 to 36 hrs. 2) A new "xfer" queue has been introduced. Users can use the xfer job to pre-stage input files for a

  8. Hopper Featured Announcements

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

    May 2012 max walltime for low queue is increased to 24 hrs on Hopper May 31, 2012 by Helen He We have increased the max walltime for the low queue on Hopper from 12 to 24 hrs. Read the full post Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 Due to a scheduled maintenance for the License Servers, most of the compilers (except GNU) and the DDT debugger on Hopper will not be available from 10:30 am to 12:30 pm on Wednesday, May 16. If there are any questions or concerns,

  9. Abnormal bipolar resistive switching behavior in a Pt/GaO{sub 1.3}/Pt structure

    SciTech Connect (OSTI)

    Guo, D. Y.; Wu, Z. P.; Zhang, L. J.; Yang, T.; Hu, Q. R.; Lei, M.; Tang, W. H. E-mail: pgli@zstu.edu.cn; Li, P. G. E-mail: pgli@zstu.edu.cn; Li, L. H.

    2015-07-20

    A stable and repeatable abnormal bipolar resistive switching behavior was observed in a Pt/GaO{sub 1.3}/Pt sandwich structure without an electroforming process. The low resistance state (LRS) and the high resistance state (HRS) of the device can be distinguished clearly and be switched reversibly under a train of the voltage pulses. The LRS exhibits a conduction of electron tunneling, while the HRS shows a conduction of Schottky-type. The observed phenomena are considered to be related to the migration of oxygen vacancies which changes the space charge region width of the metal/semiconductor interface and results in a different electron transport mechanism.

  10. Heat exchanger tube mounts

    DOE Patents [OSTI]

    Wolowodiuk, W.; Anelli, J.; Dawson, B.E.

    1974-01-01

    A heat exchanger in which tubes are secured to a tube sheet by internal bore welding is described. The tubes may be moved into place in preparation for welding with comparatively little trouble. A number of segmented tube support plates are provided which allow a considerable portion of each of the tubes to be moved laterally after the end thereof has been positioned in preparation for internal bore welding to the tube sheet. (auth)

  11. Tubular electric heater with a thermocouple assembly

    DOE Patents [OSTI]

    House, R.K.; Williams, D.E.

    1975-08-01

    This patent relates to a thermocouple or other instrumentation which is installed within the walls of a tubular sheath surrounding a process device such as an electric heater. The sheath comprises two concentric tubes, one or both of which have a longitudinal, concave crease facing the other tube. The thermocouple is fixedly positioned within the crease and the outer tube is mechanically reduced to form an interference fit onto the inner tube. (auth)

  12. Apodised aperture using rotation of plane of polarization

    DOE Patents [OSTI]

    Simmons, W.W.; Leppelmeier, G.W.; Johnson, B.C.

    1975-09-01

    An apodised aperture based on the rotation of plane of polarization producing desirable characteristics on a transmitted light beam such as beam profiling in high flux laser amplifier chains is described. The apodised aperture is made with a lossless element by using one or more polarizers and/or analyzers and magneto-optical Faraday means for selectively rotating the plane of polarized radiation over the cross section to effect the desired apodisation. (auth)

  13. Ceramic Electron Multiplier

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

    Comby, G.

    1996-10-01

    The Ceramic Electron Multipliers (CEM) is a compact, robust, linear and fast multi-channel electron multiplier. The Multi Layer Ceramic Technique (MLCT) allows to build metallic dynodes inside a compact ceramic block. The activation of the metallic dynodes enhances their secondary electron emission (SEE). The CEM can be used in multi-channel photomultipliers, multi-channel light intensifiers, ion detection, spectroscopy, analysis of time of flight events, particle detection or Cherenkov imaging detectors. (auth)

  14. Mechanical drive for blood pump

    DOE Patents [OSTI]

    Bifano, N.J.; Pouchot, W.D.

    1975-07-29

    This patent relates to a highly efficient blood pump to be used as a replacement for a ventricle of the human heart to restore people disabled by heart disease. The mechanical drive of the present invention is designed to operate in conjunction with a thermoelectric converter power source. The mechanical drive system essentially converts the output of a rotary power into pulsatile motion so that the power demand from the thermoelectric converter remains essentially constant while the blood pump output is pulsed. (auth)

  15. Whole blood analysis rotor assembly having removable cellular sedimentation bowl

    DOE Patents [OSTI]

    Burtis, C.A.; Johnson, W.F.

    1975-08-26

    A rotor assembly for performing photometric analyses using whole blood samples is described. Following static loading of a gross blood sample within a centrally located, removable, cell sedimentation bowl, the red blood cells in the gross sample are centrifugally separated from the plasma, the plasm displaced from the sedimentation bowl, and measured subvolumes of plasma distributed to respective sample analysis cuvettes positioned in an annular array about the rotor periphery. Means for adding reagents to the respective cuvettes are also described. (auth)

  16. Protection requirements for the resistance of meteorite penetration of interplanetary spacecraft systems

    SciTech Connect (OSTI)

    Volkoff, John J.

    2014-03-31

    The Plutonium Recycle Test Reactor primary coolant pumps use face type mechanical shaft seals and incorporate a large flywheel for emergency ilow during power outages. The test and development work preceding and during initial PRTR operation revealed several major problems. These problems and their solutions are discussed. Mechanical seal life was extended from original rapid failures in a few hours to periods of several thousand hours. (auth)

  17. Extraction electrode geometry for a calutron

    DOE Patents [OSTI]

    Veach, A.M.; Bell, W.A. Jr.

    1975-09-23

    This patent relates to an improved geometry for the extraction electrode and the ground electrode utilized in the operation of a calutron. The improved electrodes are constructed in a partial-picture-frame fashion with the slits of both electrodes formed by two tungsten elongated rods. Additional parallel spaced-apart rods in each electrode are used to establish equipotential surfaces over the rest of the front of the ion source. (auth)

  18. Solutions of Boltzmann`s Equation for Mono-energetic Neutrons in an Infinite Homogeneous Medium

    DOE R&D Accomplishments [OSTI]

    Wigner, E. P.

    1943-11-30

    Boltzman's equation is solved for the case of monoenergetic neutrons created by a plane or point source in an infinite medium which has spherically symmetric scattering. The customary solution of the diffusion equation appears to be multiplied by a constant factor which is smaller than 1. In addition to this term the total neutron density contains another term which is important in the neighborhood of the source. It varies as 1/r{sup 2} in the neighborhood of a point source. (auth)

  19. Hydrogen isotope separation from water

    DOE Patents [OSTI]

    Jensen, R.J.

    1975-09-01

    A process for separating tritium from tritium-containing water or deuterium enrichment from water is described. The process involves selective, laser-induced two-photon excitation and photodissociation of those water molecules containing deuterium or tritium followed by immediate reaction of the photodissociation products with a scavenger gas which does not substantially absorb the laser light. The reaction products are then separated from the undissociated water. (auth)

  20. Chemical processing in geothermal nuclear chimney

    DOE Patents [OSTI]

    Krikorian, O.H.

    1973-10-01

    A closed rubble filled nuclear chimney is provided in a subterranean geothermal formation by detonation of a nuclear explosive device therein, with reagent input and product output conduits connecting the chimney cavity with appropriate surface facilities. Such facilities will usually comprise reagent preparation, product recovery and recycle facilities. Proccsses are then conducted in the nuclear chimney which processes are facilitated by temperature, pressure, catalytic and other conditions existent or which are otherwise provided in the nuclear chimney. (auth)

  1. Metal atom oxidation laser

    DOE Patents [OSTI]

    Jensen, R.J.; Rice, W.W.; Beattie, W.H.

    1975-10-28

    A chemical laser which operates by formation of metal or carbon atoms and reaction of such atoms with a gaseous oxidizer in an optical resonant cavity is described. The lasing species are diatomic or polyatomic in nature and are readily produced by exchange or other abstraction reactions between the metal or carbon atoms and the oxidizer. The lasing molecules may be metal or carbon monohalides or monoxides. (auth)

  2. Electrolytic dissolver

    DOE Patents [OSTI]

    Wheelwright, E.J.; Fox, R.D.

    1975-08-26

    This patent related to an electrolytic dissolver wherein dissolution occurs by solution contact including a vessel of electrically insulative material, a fixed first electrode, a movable second electrode, means for insulating the electrodes from the material to be dissolved while permitting a free flow of electrolyte therebetween, means for passing a direct current between the electrodes and means for circulating electrolyte through the dissolver. (auth)

  3. Microstructure–property relationships in a high-strength 51Ni–29Ti–20Hf shape memory alloy

    SciTech Connect (OSTI)

    Coughlin, D. R.; Casalena, L.; Yang, F.; Noebe, R. D.; Mills, M. J.

    2015-09-18

    NiTiHf alloys exhibit remarkable shape memory and pseudoelastic properties that are of fundamental interest to a growing number of industries. In this study, differential scanning calorimetry and isothermal compression tests have revealed that the 51Ni–29Ti–20Hf alloy has useful shape memory properties that include a wide range of transformation temperatures as well as highly stable pseudoelastic behavior. These properties are governed by short-term aging conditions, which may be tailored to control transformation temperatures while giving rise to exceptionally high austenite yield strengths which aid transformation stability. The yield strength of the austenite phase can reach 2.1 GPa by aging for 3hrs at 500°C, while aging for 3hrs at 700°C produced an alloy with an austenite finish temperature (A f ) of 146°C. High-resolution scanning transmission electron microscopy has revealed a new precipitate phase, H-phase, under the homogenized and extruded condition and the aged 3 hrs at 500°C condition, but only the previously identified H-phase precipitate was observed after aging at temperatures of 600°C and 700°C for 3 hrs. Finally, dislocation analysis indicated that plastic deformation of the austenite phase occurred by <100> type slip, similar to that observed in binary NiTi.

  4. Cori Queues and Policies

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

    Physical Cores Max Walltime Run Limit Total Nodes Limit Submit Limit Relative Priority debug 1-128 1-4,096 30 min 1 128 5 2 regular 1-2 1-64 24 hrs 50 100 200 4 3-512 65-16,384 24...

  5. Queues and Scheduling Policies

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

    Cores Max Wallclock QOS1) Run Limit Submit Limit Relative Priority Charge Factor2) debug 1-512 1-12,288 30 mins - 1 10 2 2 regular 1-682 1-16,368 36 hrs normal 24 100 4 2...

  6. Western states enhanced oil shale recovery program: Shale oil production facilities conceptual design studies report

    SciTech Connect (OSTI)

    Not Available

    1989-08-01

    This report analyzes the economics of producing syncrude from oil shale combining underground and surface processing using Occidental's Modified-In-Situ (MIS) technology and Lawrence Livermore National Laboratory's (LLNL) Hot Recycled Solids (HRS) retort. These retorts form the basic technology employed for oil extraction from oil shale in this study. Results are presented for both Commercial and Pre-commercial programs. Also analyzed are Pre-commercialization cost of Demonstration and Pilot programs which will confirm the HRS and MIS concepts and their mechanical designs. These programs will provide experience with the circulating Fluidized Bed Combustor (CFBC), the MIS retort, the HRS retort and establish environmental control parameters. Four cases are considered: commercial size plant, demonstration size plant, demonstration size plant minimum CFBC, and a pilot size plant. Budget cost estimates and schedules are determined. Process flow schemes and basic heat and material balances are determined for the HRS system. Results consist of summaries of major equipment sizes, capital cost estimates, operating cost estimates and economic analyses. 35 figs., 35 tabs.

  7. Occupant radon exposure in houses with basements

    SciTech Connect (OSTI)

    Franklin, E.M.; Fuoss, S.

    1995-12-31

    This study compares basement and main-level radon exposure based on bi-level week-long radon measurements, occupancy and activity data collected in normal use during heating and non-heating seasons in a geographically-stratified random sample of about 600 Minnesota homes, in response to critiques of radon measurement protocol. Basement radon (RN1) (M=4.5, SD=4.5) and main level (Rn2)(M=2.9, SD=3.4) correlation was 0.8 (p=.00), including seasonal variation. In a 101-house subsample where Rn1 >=4.0 pCi/L and Rn2 <=3.9 pCi/L, maximum household exposure in basements was 1162 pCiHrs (M=120, Sd=207), main-level 2486 pCiHrs (M-434, SD=421). In same households, persons with most basement-time maxed 100 hrs (M=13,SD=23), persons with most main-level time maxed 160 hrs (M=79, SD=39). Basement activities show two patterns, (1) member used it for personal domain, e.g. sleeping, and (2) household used it for general activities, e.g. TV or children`s play. Basement occupancy justifies measurement of radon in the lowest livable housing level.

  8. Hopper Updates and Status

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

    walltime for low queue is increased to 24 hrs on Hopper 31 May 2012, 3:48 pm Hopper compilers and DDT short outage next Wed, May 16 10 May 2012, 3:47 pm Last edited: 2011-05-12...

  9. Status of LLNL Hot-Recycled-Solid oil shale retort

    SciTech Connect (OSTI)

    Baldwin, D.E.; Cena, R.J.

    1993-12-31

    We have investigated the technical and economic barriers facing the introduction of an oil shale industry and we have chosen Hot-Recycled-Solid (HRS) oil shale retorting as the primary advanced technology of interest. We are investigating this approach through fundamental research, operation of a 4 tonne-per-day, HRS pilot plant and development of an Oil Shale Process (OSP) mathematical model. Over the last three years, from June 1991 to June 1993, we completed a series of runs (H10--H27) using the 4-TPD pilot plant to demonstrate the technical feasibility of the HRS process and answer key scale-up questions. With our CRADA partners, we seek to further develop the HRS technology, maintain and enhance the knowledge base gained over the past two decades through research and development by Government and industry and determine the follow on steps needed to advance the technology towards commercialization. The LLNL Hot-Recycled-Solid process has the potential to improve existing oil shale technology. It processes oil shale in minutes instead of hours, reducing plant size. It processes all oil shale, including fines rejected by other processes. It provides controls to optimize product quality for different applications. It co-generates electricity to maximize useful energy output. And, it produces negligible SO{sub 2} and NO{sub x} emissions, a non-hazardous waste shale and uses minimal water.

  10. Estimation of neutrophil infiltration into hairless guinea pig skin treated with 2,2' -dichlorodiethyl sulfide

    SciTech Connect (OSTI)

    Bongiovanni, R.; Millard, C.B.; Schulz, S.M.; Romano, J.M.

    1993-05-13

    Despite growing acceptance of the hairless guinea pig (HPG) for evaluating sulfur mustard (2,2'dichlorodiethylsulfide, HD) skin injury, there are presently few antivesicant drug assessment endpoints validated in vivo for this model. We measured the activity of myeloperoxidase (MPO) to characterize the dose- and time-dependence of polymorphonuclear leukocyte (PMN) infiltration during development of the HD lesion. Biopsies were obtained from the dorsal thoracic-lumbar area of HGPs at successive 3 hr time intervals for up to 24 hrs following controlled exposure to either 5, 7, 8 or 10 min HD vapor. The presence of PMNs, as judged by MPO levels, peaked at 9 hrs irrespective of total HD vapor dose. The maximum response was a 20-fold increase compared to unexposed control sites at 9 hrs following 10 min HD vapor. This time period coincides with epidermal detachment characterized previously by electron microscopy in the HGP. By 24 hrs post-exposure, the MPO levels subsided markedly (2-fold compared to controls). These results suggest that PMNs participate in the HGP cutaneous inflammatory response following exposure to HD and that MPO may be a useful biological marker for evaluating putative antivesicants.

  11. Construction of a bacterium to convert cellulose to ethanol. Final report

    SciTech Connect (OSTI)

    Bellamy, W.D.

    1984-03-01

    In the strains of thermophilic actinomycetes examined, cellobiase (CBase) and Beta-glucosidase (BGSase) were determined to be separate enzymes. Both enzymes are induced by cellulose, cellobiose and lactose. A number of strains do not utilize lactose. Lactose does not induce endocellulase (CMCase) in any of the strains examined. In all the strains examined, the CBase and BGSase were far more heat labile than the extracellular CMCase. The 50% survival time at 60/sup 0/C is as follows: CMCase, 24 hrs; CBase, 10 to 11 hrs; BGSase, 2 to 5 hrs. The BGSase and CBase of Clostridium thermocellum are more heat resistant with 50% survival times: BGSase, 14 hrs; CBase, 41 hrs. Whey permeate is an adequate substrate for a number of strains if supplemented with 0.1% yeast extract or biotin and thiamine. It is speculated that whey permeate could be used for commercial production of CBase and BGSase. All attempts to produce a thermophilic bacillus that was ethanol-tolerant and produced high yields of ethanol by induced mutation using ultraviolet radiation and N-methyl-N'-nitrosogunidine as mutagens were unsuccessful. No evidence was observed that the Acetyl-S-CoA metabolic pathway was deleted or suppressed. Some of the mutants appeared to have decreased yields of lactic acid. A satisfactory screening procedure for selection of high ethanol producing colonies was not found. The screening for low acid production was tedious and time consuming. Because of the failure to find or produce a thermophile with high yields of ethanol, and because all previous work as reported in the literature also yielded poor results, it may be impossible to produce an ethanol-tolerant high yielding thermophilic microorganism. The essential proteins may be unstable at greater than 7% ethanol at 55 to 66/sup 0/C. 48 references, 6 figures, 16 tables.

  12. Field and laboratory evaluations of commercial and next–generation alumina-forming austenitic foil for advanced recuperators

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

    Pint, Bruce A.; Dryepondt, Sebastien N.; Brady, Michael P.; Yamamoto, Yukinori; Ruan, Bo; Robert D. McKeirnan, Jr.

    2016-07-19

    Alumina-forming austenitic (AFA) steels represent a new class of corrosion- and creep-resistant austenitic steels designed to enable higher temperature recuperators. Field trials are in progress for commercially rolled foil with widths over 39 cm. The first trial completed 3000 hrs in a microturbine recuperator with an elevated turbine inlet temperature and showed limited degradation. A longer microturbine trial is in progress. A third exposure in a larger turbine has passed 16,000 hrs. Furthermore, to reduce alloy cost and address foil fabrication issues with the initial AFA composition, several new AFA compositions are being evaluated in creep and laboratory oxidation testingmore » at 650–800 °C and the results compared to commercially fabricated AFA foil and conventional recuperator foil performance.« less

  13. Po River 3 Unit SO2 Cases.xls?attach=1

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

    4 hrs at min load, 12 hrs off. Unit 4 at full load, 24 hours On. 0.24 lb/MMbtu for all units. AERMOD- PRIME Monitored Background AERMOD-PRIME + Background NAAQS Distance Direction Ground Elevation Flagpole Elevation X (m) Y (m) m deg m m 3-hour 654 238.4 892 1300 322787.7 4298786.0 174.8 354 4.6 39.6 24-hour 299 53.0 352 365 322787.7 4298786.0 174.8 354 4.6 39.6 Annual 38 15.7 54 80 322787.7 4298786.0 174.8 354 4.6 39.6 3-hour 713 238.4 952 1300 322787.7 4298786.0 174.8 354 4.6 39.6 24-hour 273

  14. Po River 3 Unit SO2 Cases.xls?attach=1

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

    8 hrs at min load, 8 hrs off. Unit 5 at full load, 24 hours On. 0.24 lb/MMbtu for all units. AERMOD- PRIME Monitored Background AERMOD-PRIME + Background NAAQS Distance Direction Ground Elevation Flagpole Elevation X (m) Y (m) m deg m m 3-hour 543 238.4 781 1300 322787.7 4298786.0 174.8 354 4.6 39.6 24-hour 252 42.0 294 365 322787.7 4298786.0 174.8 354 4.6 39.6 Annual 31 15.7 47 80 322787.7 4298786.0 174.8 354 4.6 39.6 3-hour 585 238.4 824 1300 322787.7 4298786.0 174.8 354 4.6 39.6 24-hour 245

  15. Queues and Policies

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

    Queues and Policies Queues and Policies Queues and Job Scheduling Jobs must be submitted to a valid Submit Queue. Upon submission the job is routed to the appropriate Torque execution class. Users can not directly access the Torque execution classes. Submit Queue Execution Queue (Do not use in batch script) Nodes Available Processors Max Wallclock Relative Priority (1 being the highest) Run Limit Queued Limit (eligible to run limit) Queue Charge Factor xfer xfer 1 4 6 hrs 3 3 2 1 interactive

  16. Davison Circulating Riser (DCR) Capabilities Postcard (Other Marketing Product), NREL (National Renewable Energy Laboratory)

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

    Vapor Phase Upgrading With NREL's Davison Circulating Riser (DCR) Advancing technologies in biomass conversion to fuels and fuel intermediates NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. DCR System With Custom Biomass Prolyzer Highlights * Custom biomass pyrolyzer provides vapors to the DCR for upgrading to hydrocarbon fuel intermediates * 2 mass balance runs per 8 hrs: 3-6

  17. ARM - Publications: Science Team Meeting Documents

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

    Relationships Among Tropical Cloud Characteristics and Components of the Surface Heat Budget Curry, J.A., and Webster, P.J., University of Colorado; Clayson, C.A., Purdue University Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite data obtained during the TOGA COARE Intensive Observation Period (IOP) has been used to create a high resolution dataset (50 km, 3 hrs) of cloud characteristics (phase, height, precipitation) and components of the surface energy budget

  18. Genotoxicology of Rads | Environmental Radiation Protection Curriculum

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

    Genotoxicology: Genetic Effects of Radiation and Other Environmental Mutagens (3 hrs) Instructor: Stacey Lance Course Description: The goal of this course is provide students with an in-depth knowledge concerning the genetic effects of radiation and other environmental mutagens. Topics to be covered include: the molecular mechanisms of mutation and mutation repair, biomarkers and biomonitoring, genomic instability, transgenerational effects, and individual susceptibility. In addition to gaining

  19. Pretreatment of isolated human peripheral blood lymphocytes with l-oxothiazolidine 4-carboxylate reduces sulfur mustard cytotoxicity

    SciTech Connect (OSTI)

    Gross, C.L.; Smith, W.J.

    1993-05-13

    Despite 70 years of research, there appears to be no satisfactory prophylaxis or treatment for the vesicant chemical warfare agent sulfur mustard (HD). Attempts to modify cytotoxicity of HD are now focusing on the use of intracellular 'scavengers' to interact with sulfur mustard before it can react with critical targets within the cell. Glutathione (GSH) is known to react readily with HD and is involved in the major metabolic pathway to HD detoxification. Glutathione level within the cell was raised 40-60% over control values by pretreatment of quiescent human peripheral blood lymphocytes (PBL) with 10 mM L-oxothiazolidine-4-carboxylate (OTC), a masked cysteine precursor. This increase in glutathione level was not toxic to the cells as judged by trypan blue dye exclusion and reached a maximum level in 48 hrs. PBL pretreated with 10 mM OTC for 48 hrs were harvested, washed, and exposed to 10, 50, or 100 uM HD. After an additional 48 hrs of incubation at 37 deg C, cytotoxicity was measured by propidium iodide dye uptake using flow cytometry. Pretreatment with OTC led to a 20% decrease in cytotoxicity with 10 uM HD, an 11% decrease in cytotoxicity with 50 uM HD, and an 8% decrease in cytotoxicity with 100 uM HD. Cytotoxicity of HD was not influenced by addition of 10 mM OTC 2 hrs after HD exposure. These results suggest that biochemical manipulation of intracellular GSH level may provide an important pretreatment regimen to reduce the cytotoxicity of HD.

  20. Introduction to Radioecology | Environmental Radiation Protection

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

    Curriculum Introduction to Radioecology (3 hrs) Instructor: Gary Mills Course Description: This course will be an introduction to the fates and effects of radionuclides (radioactive isotopes) and their environmental impacts. The topics will include: natural and anthropogenic sources of radionuclides, the modes of their dispersal, accumulation, and sequestration in the environment, the physical and biological factors influencing their uptake, accumulation, and elimination by biota, and the

  1. Birth of Neutrino Astrophysics

    ScienceCinema (OSTI)

    None

    2011-10-06

    Based mainly on the results of two experiments, KamiokaNDE and Super-KamiokaNDE, the birth of neutrino astrophysics will be described. At the end, the result of the third generation Kamioka experiment, KamLAND, will be discussed together with the future possibilities.Organiser(s): Daniel Treille / EP DivisionNote: * Tea & coffee will be served at 16:00 hrs. Please note unusual day.

  2. José Repond | Argonne National Laboratory

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

    Joshunda Sanders About Us Joshunda Sanders - Deputy Press Secretary, Office of Public Affairs Most Recent What Today's Lighting Efficiency Proposal Is And What It Isn't February 12

    José Repond Physicist José Repond received his PhD from University of Basel (Switzerland) in 1985 and shortly afterwards joined the High Energy Physics division at Argonne. He worked on several experiments: HRS (High Resolution Spectrometer at SLAC), ZEUS (at DESY, Germany), CALICE (development of high

  3. CORROSION PROTECTION OF ALUMINUM

    DOE Patents [OSTI]

    Dalrymple, R.S.; Nelson, W.B.

    1963-07-01

    Treatment of aluminum-base metal surfaces in an autoclave with an aqueous chromic acid solution of 0.5 to 3% by weight and of pH below 2 for 20 to 50 hrs at 160 to 180 deg C produces an extremely corrosion-resistant aluminum oxidechromium film on the surface. A chromic acid concentration of 1 to 2% and a pH of about 1 are preferred. (D.C.W.)

  4. Corrosion Protection of Aluminum

    DOE Patents [OSTI]

    Dalrymple, R. S.; Nelson, W. B.

    1963-07-01

    Treatment of aluminum-base metal surfaces in an autoclave with an aqueous chromic acid solution of 0.5 to 3% by weight and of pH below 2 for 20 to 50 hrs at 160 to 180 deg C produces an extremely corrosion-resistant aluminum oxidechromium film on the surface. A chromic acid concentration of 1 to 2% and a pH of about 1 are preferred.

  5. Upgrading of Biomass Fast Pyrolysis Oil (Bio-oil) Presentation for BETO 2015 Project Peer Review

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

    Upgrading of Biomass Fast Pyrolysis Oil (Bio-oil) March 22, 2015 Bio-Oil Technology Area Review Principal Investigator : Zia Abdullah Organization: Battelle Memorial Institute 1 Goal Statement * 1,000 hrs. TOS * H/C product 30% blendable with ASTM petroleum fuels * Compatibility with petroleum refining unit operations * Fast Pyrolysis * In-situ catalytic fast pyrolysis * Ex-situ catalytic fast pyrolysis * Hydropyrolysis * Hydrothermal liquefaction * Solvent liquefaction Addresses all FOA-

  6. Design of a Geothermal Downhole Magnetic Flowmeter

    SciTech Connect (OSTI)

    Glowka, Dave A.; Normann, Randy A.

    2015-06-15

    This paper covers the development of a 300°C geothermal solid-state magnetic flowmeter (or magmeter) to support in situ monitoring of future EGS (enhanced geothermal system) production wells. Existing flowmeters are simple mechanical spinner sensors. These mechanical sensors fail within as little as 10 hrs, while a solid-state magmeter has the potential for months/years of operation. The design and testing of a magnetic flow sensor for use with existing high-temperature electronics is presented.

  7. Analysis of dose consequences arising from the release of spent nuclear fuel from dry storage casks.

    SciTech Connect (OSTI)

    Durbin, Samuel G.; Morrow, Charles W.

    2013-01-01

    The resulting dose consequences from releases of spent nuclear fuel (SNF) residing in a dry storage casks are examined parametrically. The dose consequences are characterized by developing dose versus distance curves using simplified bounding assumptions. The dispersion calculations are performed using the MELCOR Accident Consequence Code System (MACCS2) code. Constant weather and generic system parameters were chosen to ensure that the results in this report are comparable with each other and to determine the relative impact on dose of each variable. Actual analyses of site releases would need to accommodate local weather and geographic data. These calculations assume a range of fuel burnups, release fractions (RFs), three exposure scenarios (2 hrs and evacuate, 2 hrs and shelter, and 24 hrs exposure), two meteorological conditions (D-4 and F-2), and three release heights (ground level - 1 meter (m), 10 m, and 100 m). This information was developed to support a policy paper being developed by U.S. Nuclear Regulatory Commission (NRC) staff on an independent spent fuel storage installation (ISFSI) and monitored retrievable storage installation (MRS) security rulemaking.

  8. Microstructure–property relationships in a high-strength 51Ni–29Ti–20Hf shape memory alloy

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

    Coughlin, D. R.; Casalena, L.; Yang, F.; Noebe, R. D.; Mills, M. J.

    2015-09-18

    NiTiHf alloys exhibit remarkable shape memory and pseudoelastic properties that are of fundamental interest to a growing number of industries. In this study, differential scanning calorimetry and isothermal compression tests have revealed that the 51Ni–29Ti–20Hf alloy has useful shape memory properties that include a wide range of transformation temperatures as well as highly stable pseudoelastic behavior. These properties are governed by short-term aging conditions, which may be tailored to control transformation temperatures while giving rise to exceptionally high austenite yield strengths which aid transformation stability. The yield strength of the austenite phase can reach 2.1 GPa by aging for 3hrsmore » at 500°C, while aging for 3hrs at 700°C produced an alloy with an austenite finish temperature (A f ) of 146°C. High-resolution scanning transmission electron microscopy has revealed a new precipitate phase, H-phase, under the homogenized and extruded condition and the aged 3 hrs at 500°C condition, but only the previously identified H-phase precipitate was observed after aging at temperatures of 600°C and 700°C for 3 hrs. Finally, dislocation analysis indicated that plastic deformation of the austenite phase occurred by <100> type slip, similar to that observed in binary NiTi.« less

  9. Attrition and abrasion models for oil shale process modeling

    SciTech Connect (OSTI)

    Aldis, D.F.

    1991-10-25

    As oil shale is processed, fine particles, much smaller than the original shale are created. This process is called attrition or more accurately abrasion. In this paper, models of abrasion are presented for oil shale being processed in several unit operations. Two of these unit operations, a fluidized bed and a lift pipe are used in the Lawrence Livermore National Laboratory Hot-Recycle-Solid (HRS) process being developed for the above ground processing of oil shale. In two reports, studies were conducted on the attrition of oil shale in unit operations which are used in the HRS process. Carley reported results for attrition in a lift pipe for oil shale which had been pre-processed either by retorting or by retorting then burning. The second paper, by Taylor and Beavers, reported results for a fluidized bed processing of oil shale. Taylor and Beavers studied raw, retorted, and shale which had been retorted and then burned. In this paper, empirical models are derived, from the experimental studies conducted on oil shale for the process occurring in the HRS process. The derived models are presented along with comparisons with experimental results.

  10. Calorimetric study on mechanically milled aluminum and multiwall carbon nanotube composites

    SciTech Connect (OSTI)

    Nayan, Niraj Murty, S.V.S.N.; Sharma, S.C.; Kumar, K. Sree; Sinha, P.P.

    2011-11-15

    Pure aluminum reinforced with carbon nanotube (CNT) composites have been prepared by high energy attritor milling up to 48 hrs. Differential Scanning Calorimetry (DSC) has been carried out to investigate apparent activation energy and order of the reaction between carbon nanotubes and aluminum by Kissinger equation and Crane equation under non-isothermal conditions. The DSC results clearly reveal that an exothermic reaction occurs before the melting of aluminum. The effect of milling time on the initiation of this exothermic reaction has been studied. The peak temperature of the reaction of carbon nanotubes and aluminum is found to depend on the heating rate during the continuous heating. Apparent activation energy was found to get doubled after milling for 36 hrs compared to 24 hrs milled samples. The mechanism of the reaction kinetics which depends on reaction order is instantaneous nucleation and one dimensional growth for both samples. Formation of Al{sub 4}C{sub 3} was confirmed by X-ray diffraction (XRD) of as-milled powders and after performing DSC of the milled powders. Highlights: {yields} Attritor milling used for processing Al-CNT composites. {yields} Powder morphology as a function of time studied. {yields} Apparent activation energy and order of the reaction calculated for Al{sub 4}C{sub 3} formation. {yields} Apparent activation energy increases two fold with increase in milling time from 24 to 36 hours.

  11. HYDRAULIC SERVO CONTROL MECHANISM

    DOE Patents [OSTI]

    Hussey, R.B.; Gottsche, M.J. Jr.

    1963-09-17

    A hydraulic servo control mechanism of compact construction and low fluid requirements is described. The mechanism consists of a main hydraulic piston, comprising the drive output, which is connected mechanically for feedback purposes to a servo control piston. A control sleeve having control slots for the system encloses the servo piston, which acts to cover or uncover the slots as a means of controlling the operation of the system. This operation permits only a small amount of fluid to regulate the operation of the mechanism, which, as a result, is compact and relatively light. This mechanism is particuiarly adaptable to the drive and control of control rods in nuclear reactors. (auth)

  12. Method of extracting heat from dry geothermal reservoirs

    DOE Patents [OSTI]

    Potter, R.M.; Robinson, E.S.; Smith, M.C.

    1974-01-22

    Hydraulic fracturing is used to interconnect two or more holes that penetrate a previously dry geothermal reservoir, and to produce within the reservoir a sufficiently large heat-transfer surface so that heat can be extracted from the reservoir at a usefully high rate by a fluid entering it through one hole and leaving it through another. Introduction of a fluid into the reservoir to remove heat from it and establishment of natural (unpumped) convective circulation through the reservoir to accomplish continuous heat removal are important and novel features of the method. (auth)

  13. The Muon System of the Daya Bay Reactor Antineutrino Experiment

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

    An, F. P.; Hackenburg, R. W.; Brown, R. E.; Chasman, C.; Dale, E.; Diwan, M. V.; Gill, R.; Hans, S.; Isvan, Z.; Jaffe, D. E.; et al

    2014-10-05

    The Daya Bay experiment consists of functionally identical antineutrino detectors immersed in pools of ultrapure water in three well-separated underground experimental halls near two nuclear reactor complexes. These pools serve both as shields against natural, low-energy radiation, and as water Cherenkov detectors that efficiently detect cosmic muons using arrays of photomultiplier tubes. Each pool is covered by a plane of resistive plate chambers as an additional means of detecting muons. Design, construction, operation, and performance of these muon detectors are described. (auth)

  14. Apparatus for producing laser targets

    DOE Patents [OSTI]

    Jarboe, T.R.; Baker, W.R.

    1975-09-23

    This patent relates to an apparatus and method for producing deuterium targets or pellets of 25u to 75u diameter. The pellets are sliced from a continuously spun solid deuterium thread at a rate of up to 10 pellets/second. The pellets after being sliced from the continuous thread of deuterium are collimated and directed to a point of use, such as a laser activated combustion or explosion chamber wherein the pellets are imploded by laser energy or laser produced target plasmas for neutral beam injection. (auth)

  15. Fast-neutron solid-state dosimeter

    DOE Patents [OSTI]

    Kecker, K.H.; Haywood, F.F.; Perdue, P.T.; Thorngate, J.H.

    1975-07-22

    This patent relates to an improved fast-neutron solid-state dosimeter that does not require separation of materials before it can be read out, that utilizes materials that do not melt or otherwise degrade at about 300$sup 0$C readout temperature, that provides a more efficient dosimeter, and that can be reused. The dosimeters are fabricated by intimately mixing a TL material, such as CaSO$sub 4$:Dy, with a powdered polyphenyl, such as p-sexiphenyl, and hot- pressing the mixture to form pellets, followed by out-gassing in a vacuum furnace at 150$sup 0$C prior to first use dosimeters. (auth)

  16. Positron Scanner for Locating Brain Tumors

    DOE R&D Accomplishments [OSTI]

    Rankowitz, S.; Robertson, J. S.; Higinbotham, W. A.; Rosenblum, M. J.

    1962-03-01

    A system is described that makes use of positron emitting isotopes for locating brain tumors. This system inherently provides more information about the distribution of radioactivity in the head in less time than existing scanners which use one or two detectors. A stationary circular array of 32 scintillation detectors scans a horizontal layer of the head from many directions simultaneously. The data, consisting of the number of counts in all possible coincidence pairs, are coded and stored in the memory of a Two-Dimensional Pulse-Height Analyzer. A unique method of displaying and interpreting the data is described that enables rapid approximate analysis of complex source distribution patterns. (auth)

  17. Method of manufacturing lead electrodes for storage cells

    DOE Patents [OSTI]

    Jonville, P.; Stoehr, H.; Beccu, K.D.

    1975-09-23

    A method of manufacturing electrodes for lead storage batteries is described. Molten lead or lead alloy is deposited on a felt of glass fibers by spraying in a molten state to fill the space between the fibers of the felt to form an electrically conductive zone defining electrode contacts. A mass of powdered lead-based material is introduced into the felt by filtration for subsequently producing an active electrode mass by at least one electrochemical transformation. The felt is then cut into individual electrodes. (auth)

  18. January 2009 Memo on CPMS

    Office of Environmental Management (EM)

    High Impact Assessment Bulletins JC3 High

    Low Impact Assessment Bulletins JC3 Low

    Medium Impact Assessment Bulletins JC3 Medium

    JC3 JC3 RSS September 9, 2013 V-237: TYPO3 Security Bypass Vulnerabilities TYPO3 comes with the possibility to restrict editors to certain file actions (copy, delete, move etc.) and to restrict these actions to be performed in certain locations September 6, 2013 V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability A vulnerability

  19. Explosive laser

    DOE Patents [OSTI]

    Robinson, C.P.; Jensen, R.J.; Davis, W.C.; Sullivan, J.A.

    1975-09-01

    This patent relates to a laser system wherein reaction products from the detonation of a condensed explosive expand to form a gaseous medium with low translational temperature but high vibration population. Thermal pumping of the upper laser level and de-excitation of the lower laser level occur during the expansion, resulting in a population inversion. The expansion may be free or through a nozzle as in a gas-dynamic configuration. In one preferred embodiment, the explosive is such that its reaction products are CO$sub 2$ and other species that are beneficial or at least benign to CO$sub 2$ lasing. (auth)

  20. JCAP Industry Day - JCAP

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

    High Impact Assessment Bulletins JC3 High

    Low Impact Assessment Bulletins JC3 Low

    Medium Impact Assessment Bulletins JC3 Medium

    JC3 JC3 RSS September 9, 2013 V-237: TYPO3 Security Bypass Vulnerabilities TYPO3 comes with the possibility to restrict editors to certain file actions (copy, delete, move etc.) and to restrict these actions to be performed in certain locations September 6, 2013 V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability A vulnerability

  1. The Parity of the Neutral Pion and the Decay pi{sup 0} Yields 2e{sup +} + 2e{sup -}

    DOE R&D Accomplishments [OSTI]

    Samios, N. P.; Plano, R.; Prodell, A.; Schwartz, M.; Steinberger, J.

    1962-01-01

    Two hundred and six electronic decays of the pi{sup 0}, pi{sup 0} yields e{sup +} + e{sup -} + e{sup +} + e{sup -}, were observed in a hydrogen bubble chamber. The decay distributions of the electron pairs and the total rate for this process are shown to be in good agreement with theory. An examination of correlations of the e{sup +}e{sup -} pair decay planes on the basis of electrodynamic predictions is in agreement with the hypothesis that the pi{sup 0} is pseudoscalar, but disagrees for scalar pions by 3.6 standard deviations. (auth)

  2. Search for the Dirac Monopole with 30-bev Protons

    DOE R&D Accomplishments [OSTI]

    Purcell, E.M.; Collins, G.B.; Fujii, T.; Hornbostel, J.; Turkot, F.

    1963-03-01

    A search was made at the Brookhaven alternating gradient synchrotron for magnetic monopoles produced either in collisions of 30-Bev protons with light nuclei, or produced by gamma rays secondary to these protons in the Coulomb field of protons or of carbon nuclei. In runs using 5.7 x 10{sup 15} circulating protons, no monopole-like event was found. This implies an upper limit for production in protonnucleon interactions of about 2 x 10{sup -40} cm{sup 2}. Experimental limits are also derived for the photoproduction of pole pairs. (auth)

  3. Effect of the Temperature of the Moderator on the Velocity Distribution of Neutrons with Numerical Calculations for H as Moderator

    DOE R&D Accomplishments [OSTI]

    Wigner, E. P.; Wilkins, J. E. Jr.

    1944-09-14

    In this paper we set up an integral equation governing the energy distribution of neutrons that are being slowed down uniformly throughout the entire space by a uniformly distributed moderator whose atoms are in motion with a Maxwellian distribution of velocities. The effects of chemical binding and crystal reflection are ignored. When the moderator is hydrogen, the integral equation is reduced to a differential equation and solved by numerical methods. In this manner we obtain a refinement of the dv/v{sup 2} law. (auth)

  4. Atomic moments in Mn2CoAl thin films analyzed by X-ray magnetic circular dichroism

    SciTech Connect (OSTI)

    Jamer, M.; Sterbinsky, G.; Assaf, B.; Arena, D.; Heiman, D.

    2014-12-05

    Spin gapless semiconductors are known to be strongly affected by structural disorder when grown epitaxially as thin films. The magnetic properties of Mn2CoAl thin films grown on GaAs (001) substrates are investigated here as a function of annealing. This study investigates the atomic-specific magnetic moments of Mn and Co atoms measured through X-ray magnetic circular dichroism as a function of annealing and the consequent structural ordering. The results indicate that the structural distortion mainly affects the Mn atoms as seen by the reduction of the magnetic moment from its predicted value. (auth)

  5. Nitrodifluoraminoterphenyl compounds and processes

    DOE Patents [OSTI]

    Lerom, M.W.; Peters, H.M.

    1975-07-08

    This patent relates to the nitrodifluoraminoterphenyl compounds: 3,3''-bis (difluoramino)-2,2'' 4,4', 4'',6,6',6''-octanitro-m-terphenyl (DDONT) and 3,3''-bis(difluoramino)-2,2',2''4,4',4'',6,6',6''-nonanitro-m-terphenyl (DDNONA). Procedures are described wherein diamino precursors of the indicated compounds are prepared and the final compounds are obtained by a fluorination operation. The compounds are highly energetic and suitable for use as explosives and particularly in exploding bridge wire (EBW) detonators. (auth)

  6. Activated phosphors having matrices of yttrium-transition metal compound

    DOE Patents [OSTI]

    De Kalb, E.L.; Fassel, V.A.

    1975-07-01

    A method is described for preparing a phosphor composition containing a lanthanide activator element with a host matrix having a transition element as a major component. The host matrix is composed of certain rare earth phosphates or vanadates such as YPO$sub 4$ with a portion of the rare earth replaced with one or more of the transition elements. On x-ray or other electromagnetic excitation, trace lanthanide impurities or additives within the phosphor are spectrometrically determined from their characteristic luminescence. (auth)

  7. NATIONAL LEAD COMPANY OF OHlO

    Office of Legacy Management (LM)

    OF OHlO - TO J. A. <$&$wy, ti.2. FROM 0. G. -brt REFERENCE ORIG:idAL 5iC\i9 ;! ' ,

  8. DETECTION OF $sup 54$Mn IN FOOD SAMPLES (Journal Article) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    OSTI Identifier: 4590897 Resource Type: Journal Article Resource Relation: Journal Name: Health Physics (England); Journal Volume: Vol: 12; Other Information: Orig. Receipt Date: ...

  9. Calculation of self-energy of particles. Meson with spin zero...

    Office of Scientific and Technical Information (OSTI)

    OSTI Identifier: 4448867 Resource Type: Journal Article Resource Relation: Journal Name: Nature; Journal Volume: Vol: 164; Other Information: Letter to the editor. Orig. Receipt ...

  10. Absorption and defocusing of electromagnetic radiation by a Schwarzsch...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Journal Name: Annals of Physics; Journal Volume: 95; Journal Issue: 1; Other Information: Orig. Receipt Date: 30-JUN-76 Publisher: Elsevier Research Org: ...

  11. THRESHOLD RADIOACTIVITY FOR BULK FOOD SAMPLES BY GAMMA SPECTROSCOPY...

    Office of Scientific and Technical Information (OSTI)

    Orig. Receipt Date: 31-DEC-65 Research Org: Div. of Pharmacology, Food and Drug ... NIOBIUM 95; POTASSIUM 40; QUANTITATIVE ANALYSIS; RADIOACTIVITY; SAMPLING; ...

  12. BERYLLIUM OXIDE AND ITS USES (Journal Article) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Orig. Receipt Date: 31-DEC-60 Research Org: Commissariat a l'Energie Atomique, ... MECHANICAL PROPERTIES; PRESSURE; QUANTITATIVE ANALYSIS; RADIATION EFFECTS; RODS; ...

  13. REFRACTORY MATERIALS IN THE NUCLEAR INDUSTRY (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    (France); Journal Volume: Vol: No. 518; Other Information: CEA-1614. Orig. Receipt Date: 31-DEC-61 Research Org: ... Subject: METALS, CERAMICS, AND OTHER MATERIALS; BORON; ...

  14. New Security Results on Encrypted Key Exchange

    SciTech Connect (OSTI)

    Bresson, Emmanuel; Chevassut, Olivier; Pointcheval, David

    2003-12-15

    Schemes for encrypted key exchange are designed to provide two entities communicating over a public network, and sharing a (short) password only, with a session key to be used to achieve data integrity and/or message confidentiality. An example of a very efficient and ''elegant'' scheme for encrypted key exchange considered for standardization by the IEEE P1363 Standard working group is AuthA. This scheme was conjectured secure when the symmetric-encryption primitive is instantiated via either a cipher that closely behaves like an ''ideal cipher,'' or a mask generation function that is the product of the message with a hash of the password. While the security of this scheme in the former case has been recently proven, the latter case was still an open problem. For the first time we prove in this paper that this scheme is secure under the assumptions that the hash function closely behaves like a random oracle and that the computational Diffie-Hellman problem is difficult. Furthermore, since Denial-of-Service (DoS) attacks have become a common threat we enhance AuthA with a mechanism to protect against them.

  15. Test Report: Cost Effective Foundation Insulation

    SciTech Connect (OSTI)

    Jeffrey M. Lacy; T. E. Rahl; G. A. Twitchell; R. G. Kobbe

    2003-06-01

    A field experiment was conducted to demonstrate and quantify the thermal effectiveness of rigid insulation board when installed on the exterior of a buried concrete foundation wall. A heated, insulated box was constructed along one wall of an existing, unheated building to simulate the living space of a home. The crawl space beneath the living space was divided into two sections. One featured external foundation insulation, while the other side had none. 36 temperature and heat flux sensors were installed at predetermined locations to measure the temperature profile and heat flow out of the living space. The temperature profile through the foundation was then used to calculate the total heat flow out of the foundation for both cases. This experiment showed that a significant energy savings is available with exterior foundation insulation. Over the course of 3 months, the heat-loss differential between the insulated and non-insulated foundations was 4.95 kilowatt-hours per lineal foot of foundation wall, for a ratio of 3:1. For a 2200 sq. ft home with a foundation perimeter 200 ft. long, this would amount to a savings of 990 kW-hrs in just 3 months, or 330 kW-hrs per month. Extrapolating to an 8-month heating year, we would expect to save over 2640 kW-hrs per year for such a home. The savings for a basement foundation, rather than a crawlspace, would be approach twice that amount, nearing 5280 kW-hr per year. Because these data were not collected during the coldest months of the year, they are conservative, and greater savings may be expected during colder periods.

  16. Outgassing rate of Reemay Spunbonded Polyester and DuPont Double Aluminized Mylar

    SciTech Connect (OSTI)

    Todd, R.J.; Pate, D.; Welch, K.M.

    1993-08-01

    This paper presents the outgassing rates of two commercially available multi-layer insulation (MLI) materials commonly used in cryogenic applications. Both Reemay Spunbonded Polyester and DuPont Double Aluminized Mylar (DAM) were studied for outgassing species and respective rates, and the total amount of outgassed material. Measurements were made using a Fixed Aperture Technique. A sample was pumped on through an aperture of known size with a turbomolecular pump. Pressure vs. time was plotted for both Reemay and DAM, as well as the baseline system, and data conveniently extrapolated to {approx}1,000 hrs. A quadrupole residual gas analyzer was used to measure the outgassing species.

  17. An approach for longer lifetime MCFCs

    SciTech Connect (OSTI)

    Matsumoto, Masaru; Tatsumi, Masahiko; Hayano, Takuro

    1996-12-31

    For entering into commercialization of MCFC power plants in the beginning of the 21st century, we will devote to research for increasing lifetime as long as 40,000 hours with cell performance decay rate of 0.25 %/1000hrs as the target in FY 1999. This paper will discuss on our approach for longer lifetime MCFCs through electrolyte-loss management and NiO precipitation management as well as micro-structural control of electrodes and matrix plates. Cell voltage decay rate will be estimated by simulation through series of experiments on accelerated conditions.

  18. Queues and Policies

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

    Queues and Policies Queues and Policies Overview Jobs must be submitted to a valid submit queue. Upon submission the job is routed to the appropriate execution queue. Users can not directly access the execution queues. Submit Queue Execution Queue Nodes Available Cores Max Wallclock Relative Priority Run Limit Eligible Limit Charge Factor* interactive interactive 1-8 1-64 30 mins 1 2 1 1.5 debug debug 1-32 1-256 30 mins 2 2 1 1.5 regular reg_short 1-16 1-128 4 hrs 3 8 4 1.5 reg_small 1-16 1-128

  19. Insights from Hydrogen Refueling Station Manufacturing Competitiveness Analysis

    SciTech Connect (OSTI)

    Mayyas, Ahmad

    2015-12-18

    In work for the Clean Energy Manufacturing Analysis Center (CEMAC), NREL is currently collaborating with Great Lakes Wind Network in conducting a comprehensive hydrogen refueling stations manufacturing competitiveness and supply chain analyses. In this project, CEMAC will be looking at several metrics that will facilitate understanding of the interactions between and within the HRS supply chain, such metrics include innovation potential, intellectual properties, learning curves, related industries and clustering, existing supply chains, ease of doing business, and regulations and safety. This presentation to Fuel Cell Seminar and Energy Exposition 2015 highlights initial findings from CEMAC's analysis.

  20. Hadron production in e/sup +/e/sup -/ annihilation at 29 GeV

    SciTech Connect (OSTI)

    Sugano, K.

    1987-01-01

    Recent results from HRS on the production of scalar, tensor, and charm mesons and of strange and charm baryons in e/sup +/e/sup -/ annihilation are presented. The production of f/sub 0/(975), f/sub 2/(1270), and K/sub 2/*(1430) is shown briefly. The decays of D*(2010)/sup +/ and D*(2007)/sup 0/ are studied in detail. The production of ..xi../sup -/ and ..sigma..(1385)/sup + -/ is mentioned. Finally, the preliminary analyses of ..lambda../sub c/ and ..sigma../sub c//sup 0,++/ productions are presented.

  1. Microstructure analysis for chemical interaction between cesium and SUS 316 steel in fast breeder reactor application

    SciTech Connect (OSTI)

    Sasaki, K.; Fukumoto, K. I.; Oshima, T.; Tanigaki, T.; Masayoshi, U.

    2012-07-01

    In this study the corrosion products on a surface after cesium corrosion examination at 650 deg. C for 100 hrs were characterized by TEM observation around the corroded area on the surface in order to understand the corrosion mechanism of cesium fission product for cladding materials in fast reactor. The experimental results suggest the main corrosion mechanism occurred in the process of the separation of cesium chromate and metal (Fe, Ni). The main reaction of corrosion process was considered to be equation, 2Cs + 7/2 O{sub 2} + 2Cr {yields} Cs{sub 2}Cr{sub 2}O{sub 7}(L). (authors)

  2. Corrosion and Stress Corrosion Cracking of High Cr Ferritic-Martensitic Steels in Supercritical Water

    SciTech Connect (OSTI)

    Jinsung, Jang; Seong Sik, Hwang; Chang Hee, Han; Byung Hak, Lee

    2006-07-01

    Corrosion behavior of the F-M (ferritic-martensitic) steels (T91, T92, T122) and Fe-base ODS (oxide dispersion strengthened) alloy (MA956{sup TM}) were evaluated in an aerated (8 ppm D.O.) SCW (supercritical water) at the temperature range between 300 and 627 deg C under 25 MPa. In aerated SCW the weight change of the F-M steel specimens became greater as the test temperature increased. However, the extent of the weight change at 350 deg C, just below the critical temperature appeared not to be less than those at 550 deg C. And the weight changes of all the F-M steel specimens in the deaerated SCW (for 347 hrs in 100 ppb D.O. for 347 hrs, and in 10 ppb D.O. for 432 hrs) tended to converge to about 1 mgcm{sup -2}. In aerated or deaerated conditions 20Cr Fe-base ODS alloy appeared to be very resistant to a SCW corrosion at all the test temperatures up to 500 hrs. Stress corrosion cracking (SCC) behavior of 9Cr F-M steels (T91 and T92) was investigated by CERT (Constant Extension Rate Test) in SCW at various temperatures and D.O. levels with different strain rates. T91 did not show any evidence of a SCC in a fully deaerated (below 10 ppb D.O.) SCW at 500, 550, and 600 deg C at the test conditions. T92 specimens were tested at 500 deg C in SCW with different D.O. levels. The strain rate did not seem to affect the SCC behavior of the T92 steel, but D.O. in SCW seems to affect the SCC behavior to some extent. The total elongation of T92 in SCW of 100 ppb or of 500 ppb D.O. was significantly smaller than that at a fully deaerated (below 10 ppb D.O.) SCW (about 15 vs. 20%), and it appears to provide a clue to a SCC on the fracture surface after the CERT test. (authors)

  3. Hopper Featured Announcements

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

    August 2012 high thruput queue now available on Hopper August 30, 2012 by Helen He A new batch queue named "thruput" has been implemented on Hopper to support the increased high throughput computing needs from the user community. The queue limits for this queue are as follows: -- max wall time is 168 hrs -- max node count is 2 (max core count is 48) -- max queue-able jobs per user is 500 -- max running jobs from all users in this queue is 500 -- has same priority as of the

  4. Allocation of Flight Hours

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

    Allocation of Flight Hours for G-1 Pattern Number Name/Description Hours per flight Number of Flights Total # of Hours Fraction of Allotment (60hrs) Likely Start Time Weather Conditions 1 Stack Pattern 1 (Instrument testing) 3.5 1 3.5 6% 10:00-12:00 Shallow clouds, Cu Hu- Cu Me, Ci are okay 2 Stack Pattern 2 Basic OKC Cloudy Air Flight Plan (some in coordination with ER-2) 3.5 5 17.5 30% 10:00-12:00 Shallow clouds, Cu Hu- Cu Me, Ci are okay 3 Stack Pattern 3 Basic OKC Clear Air Flight Plan 3.5 5

  5. DOE Response Exhibit D Calendar 12-30-05 .doc

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

    This version of unit sequence is based on information available as of 12/28/05. This accomplishes elimination of extended unit lay-up and completion of 3 trona systems 2. Actual unit sequence may change based on when approval to proceed is provided and trona system completion dates. Sun Mon Tue Wed Thu Fri Sat 1 2 Unit #2 on with trona (1 st time operation since extended layup) 3 4 Unit # 2 5 6 7 8 Unit #2 9 Unit # 1 on 16 hrs w/no trona. Unit # 2 off while moving hoses from Unit #2 to Unit # 4.

  6. DOE Selects 12 Solar America Cities to Receive up to $2.4 Million |

    Office of Environmental Management (EM)

    This version of unit sequence is based on information available as of 12/28/05. This accomplishes elimination of extended unit lay-up and completion of 3 trona systems 2. Actual unit sequence may change based on when approval to proceed is provided and trona system completion dates. Sun Mon Tue Wed Thu Fri Sat 1 2 Unit #2 on with trona (1 st time operation since extended layup) 3 4 Unit # 2 5 6 7 8 Unit #2 9 Unit # 1 on 16 hrs w/no trona. Unit # 2 off while moving hoses from Unit #2 to Unit # 4.

  7. Microsoft Word - ATTACHMENT A Suppl 5.doc

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

    ATTACHMENT A: Modeling in Support of Additional Two-Unit Operating Configurations Unit 1 & Unit 2 Operation - SO2 Table Mirant Potomac, Alexandria, Virginia Maximum Impacts Predicted by AERMOD-PRIME Compliance Based on Highest, Second-Highest Short-term and Highest Annual Concentrations Units 1 & 2 on 24 hrs/day @ Max load SO2 = 0.31 lb/MBtu for both units. AERMOD- PRIME Monitored Background AERMOD-PRIME + Background NAAQS Distance Direction Ground Elevation Flagpole Elevation X (m) Y

  8. A Self-Biasing Pulsed Depressed Collector

    SciTech Connect (OSTI)

    Kemp, Mark A.; Jensen, Aaron; Neilson, Jeff; /SLAC

    2014-05-29

    Depressed collectors have been utilized successfully for many years to improve the electrical efficiency of vacuum electron devices. Increasingly, pulsed, high-peak power accelerator applications are placing a premium on electrical efficiency. As RF systems are responsible for a large percentage of the overall energy usage at accelerator laboratories, methods to improve upon the state-of-the-art in pulsed high-power sources are desired. This paper presents a technique for self-biasing the stages in a multistage depressed collector. With this technique, the energy lost during the rise and fall times of the pulse can be recovered, separate power supplies are not needed, and existing modulators can be retrofitted. Calculations show that significant cost savings can be realized with the implementation of this device in high-power systems. In this paper, the technique is described along with experimental demonstration. (auth)

  9. Means for obtaining a metal ion beam from a heavy-ion cyclotron source

    DOE Patents [OSTI]

    Hudson, E.D.; Mallory, M.L.

    1975-08-01

    A description is given of a modification to a cyclotron ion source used in producing a high intensity metal ion beam. A small amount of an inert support gas maintains the usual plasma arc, except that it is necessary for the support gas to have a heavy mass, e.g., xenon or krypton as opposed to neon. A plate, fabricated from the metal (or anything that can be sputtered) to be ionized, is mounted on the back wall of the ion source arc chamber and is bombarded by returning energetic low-charged gas ions that fail to cross the initial accelerating gap between the ion source and the accelerating electrode. Some of the atoms that are dislodged from the plate by the returning gas ions become ionized and are extracted as a useful beam of heavy ions. (auth)

  10. A Massively Parallel Solver for the Mechanical Harmonic Analysis of Accelerator Cavities

    SciTech Connect (OSTI)

    O. Kononenko

    2015-02-17

    ACE3P is a 3D massively parallel simulation suite that developed at SLAC National Accelerator Laboratory that can perform coupled electromagnetic, thermal and mechanical study. Effectively utilizing supercomputer resources, ACE3P has become a key simulation tool for particle accelerator R and D. A new frequency domain solver to perform mechanical harmonic response analysis of accelerator components is developed within the existing parallel framework. This solver is designed to determine the frequency response of the mechanical system to external harmonic excitations for time-efficient accurate analysis of the large-scale problems. Coupled with the ACE3P electromagnetic modules, this capability complements a set of multi-physics tools for a comprehensive study of microphonics in superconducting accelerating cavities in order to understand the RF response and feedback requirements for the operational reliability of a particle accelerator. (auth)

  11. Phase contrast in high resolution electron microscopy

    DOE Patents [OSTI]

    Rose, H.H.

    1975-09-23

    This patent relates to a device for developing a phase contrast signal for a scanning transmission electron microscope. The lens system of the microscope is operated in a condition of defocus so that predictable alternate concentric regions of high and low electron density exist in the cone of illumination. Two phase detectors are placed beneath the object inside the cone of illumination, with the first detector having the form of a zone plate, each of its rings covering alternate regions of either higher or lower electron density. The second detector is so configured that it covers the regions of electron density not covered by the first detector. Each detector measures the number of electrons incident thereon and the signal developed by the first detector is subtracted from the signal developed by the record detector to provide a phase contrast signal. (auth)

  12. Anharmonic Potential Constants and Their Dependence Upon Bond Length

    DOE R&D Accomplishments [OSTI]

    Herschbach, D. R.; Laurie, V. W.

    1961-01-01

    Empirical study of cubic and quartic vibrational force constants for diatomic molecules shows them to be approximately exponential functions of internuclear distance. A family of curves is obtained, determined by the location of the bonded atoms in rows of the periodic table. Displacements between successive curves correspond closely to those in Badger's rule for quadratic force constants (for which the parameters are redetermined to accord with all data now available). Constants for excited electronic and ionic states appear on practically the same curves as those for the ground states. Predictions based on the diatomic correlations agree with the available cubic constants for bond stretching in polyatomic molecules, regardless of the type of bonding involved. Implications of these regularities are discussed. (auth)

  13. Liquid-level sensing device

    DOE Patents [OSTI]

    Goldfuss, G.T.

    1975-09-16

    This invention relates to a device for sensing the level of a liquid while preventing the deposition and accumulation of materials on the exterior surfaces thereof. Two dissimilar metal wires are enclosed within an electrical insulating material, the wires being joined together at one end to form a thermocouple junction outside the insulating material. Heating means is disposed within the electrical insulating material and maintains the device at a temperature substantially greater than that of the environment surrounding the device, the heating means being electrically insulated from the two dissimilar thermocouple wires. In addition, a metal sheath surrounds and contacts both the electrical insulating material and the thermocouple junction. Electrical connections are provided for connecting the heating means with a power source and for connecting the thermocouple wires with a device for sensing the electrical potential across the thermocouple junction. (auth)

  14. Measurement of the differential pressure of liquid metals

    DOE Patents [OSTI]

    Metz, H.J.

    1975-09-01

    This patent relates to an improved means for measuring the differential pressure between any two points in a process liquid metal coolant loop, wherein the flow of liquid metal in a pipe is opposed by a permanent magnet liquid metal pump until there is almost zero flow shown by a magnetic type flowmeter. The pressure producing the liquid metal flow is inferred from the rate of rotation of the permanent magnet pump. In an alternate embodiment, a differential pressure transducer is coupled to a process pipeline by means of high-temperature bellows or diaphragm seals, and a permanent magnet liquid metal pump in the high-pressure transmission line to the pressure transducer can be utilized either for calibration of the transducer or for determining the process differential pressure as a function of the magnet pump speed. (auth)

  15. ON THE FREQUENCY OF JUPITER ANALOGS

    SciTech Connect (OSTI)

    Wittenmyer, Robert A.; Tinney, C. G.; Bailey, J.; O'Toole, Simon J.; Jones, H. R. A.; Butler, R. P.; Carter, B. D.

    2011-02-01

    The Anglo-Australian Planet Search has now accumulated 12 years of radial-velocity data with long-term instrumental precision better than 3 m s{sup -1}. In this paper, we expand on earlier simulation work, to probe the frequency of near-circular, long-period gas-giant planets residing at orbital distances of 3-6 AU-the so-called Jupiter analogs. We present the first comprehensive analysis of the frequency of these objects based on radial-velocity data. We find that 3.3% of stars in our sample host Jupiter analogs; detailed, star-by-star simulations show that no more than 37% of stars host a giant planet between 3 and 6 AU.

  16. Secure password-based authenticated key exchange for web services

    SciTech Connect (OSTI)

    Liang, Fang; Meder, Samuel; Chevassut, Olivier; Siebenlist, Frank

    2004-11-22

    This paper discusses an implementation of an authenticated key-exchange method rendered on message primitives defined in the WS-Trust and WS-SecureConversation specifications. This IEEE-specified cryptographic method (AuthA) is proven-secure for password-based authentication and key exchange, while the WS-Trust and WS-Secure Conversation are emerging Web Services Security specifications that extend the WS-Security specification. A prototype of the presented protocol is integrated in the WSRF-compliant Globus Toolkit V4. Further hardening of the implementation is expected to result in a version that will be shipped with future Globus Toolkit releases. This could help to address the current unavailability of decent shared-secret-based authentication options in the Web Services and Grid world. Future work will be to integrate One-Time-Password (OTP) features in the authentication protocol.

  17. Theory of the Knight Shift and Flux Quantization in Superconductors

    DOE R&D Accomplishments [OSTI]

    Cooper, L. N.; Lee, H. J.; Schwartz, B. B.; Silvert, W.

    1962-05-01

    Consequences of a generalization of the theory of superconductivity that yields a finite Knight shift are presented. In this theory, by introducing an electron-electron interaction that is not spatially invariant, the pairing of electrons with varying total momentum is made possible. An expression for Xs (the spin susceptibility in the superconducting state) is derived. In general Xs is smaller than Xn, but is not necessarily zero. The precise magnitude of Xs will vary from sample to sample and will depend on the nonuniformity of the samples. There should be no marked size dependence and no marked dependence on the strength of the magnetic field; this is in accord with observation. The basic superconducting properties are retained, but there are modifications in the various electromagnetic and thermal properties since the electrons paired are not time sequences of this generalized theory on flux quantization arguments are presented.(auth)

  18. Reactive Collisions in Crossed Molecular Beams

    DOE R&D Accomplishments [OSTI]

    Herschbach, D. R.

    1962-02-01

    The distribution of velocity vectors of reaction products is discussed with emphasis on the restrictions imposed by the conservation laws. The recoil velocity that carries the products away from the center of mass shows how the energy of reaction is divided between internal excitation and translation. Similarly, the angular distributions, as viewed from the center of mass, reflect the partitioning of the total angular momentum between angular momenta of individual molecules and orbital angular momentum associated with their relative motion. Crossed-beam studies of several reactions of the type M + RI yields R + MI are described, where M = K, Rb, Cs, and R = CH{sub 3}, C{sub 3}H{sub 5}, etc. The results show that most of the energy of reaction goes into internal excitation of the products and that the angular distribution is quite anisotropic, with most of the MI recoiling backward (and R forward) with respect to the incoming K beam. (auth)

  19. Recent studies of the electron cloud induced beam instability at the Los Alamos PSR

    SciTech Connect (OSTI)

    Macek, Robert James; McCrady, Rodney C; Rybarcyk, Lawrence J; Zaugg, Thomas J

    2010-10-06

    Recent beam studies have focused on two aspects of the observed e-p instability at the Los Alamos Proton Storage Ring (PSR). Most recently it has been observed that a stable beam with the standard production bunch width (290 ns injected beam bunch width) will become e-p unstable when the bunch width is shortened to 200 ns or less. This was not the case years earlier when the ring RF operated at the exact 72.000 sub harmonic of the Linac bunch frequency. Experimental characteristics and possible explanations of this recent ''short pulse instability phenomenon'' will be presented. Other beam studies have focused on electron cloud generation, trapping and ejection from quadrupoles and are the focus of another talk. (auth)

  20. The LSST Camera 500 watt -130 degC Mixed Refrigerant Cooling System

    SciTech Connect (OSTI)

    Bowden, Gordon B.; Langton, Brian J.; Little, William A.; Powers, Jacob R; Schindler, Rafe H.; Spektor, Sam; /MMR-Technologies, Mountain View, CA

    2014-05-28

    The LSST Camera has a higher cryogenic heat load than previous CCD telescope cameras due to its large size (634 mm diameter focal plane, 3.2 Giga pixels) and its close coupled front-end electronics operating at low temperature inside the cryostat. Various refrigeration technologies are considered for this telescope/camera environment. MMR-Technology’s Mixed Refrigerant technology was chosen. A collaboration with that company was started in 2009. The system, based on a cluster of Joule-Thomson refrigerators running a special blend of mixed refrigerants is described. Both the advantages and problems of applying this technology to telescope camera refrigeration are discussed. Test results from a prototype refrigerator running in a realistic telescope configuration are reported. Current and future stages of the development program are described. (auth)

  1. Displaced electrode process for welding

    DOE Patents [OSTI]

    Heichel, L.J.

    1975-08-26

    A method is described for the butt-welding of a relatively heavy mass to a relatively small mass such as a thin-wall tube. In butt-welding heat is normally applied at the joint between the two pieces which are butt-welded together. The application of heat at the joint results in overheating the tube which causes thinning of the tube walls and porosity in the tube material. This is eliminated by displacing the welding electrode away from the seam toward the heavier mass so that heat is applied to the heavy mass and not at the butt seam. Examples of the parameters used in welding fuel rods are given. The cladding and end plugs were made of Zircalloy. The electrode used was of 2 percent thoriated tungsten. (auth)

  2. Liquid level controller

    DOE Patents [OSTI]

    Mangus, J.D.; Redding, A.H.

    1975-07-15

    A system for maintaining two distinct sodium levels within the shell of a heat exchanger having a plurality of J-shaped modular tube bundles each enclosed in a separate shell which extends from a common base portion. A lower liquid level is maintained in the base portion and an upper liquid level is maintained in the shell enwrapping the long stem of the J-shaped tube bundles by utilizing standpipes with a notch at the lower end which decreases in open area the distance from the end of the stand pipe increases and a supply of inert gas fed at a constant rate to produce liquid levels, which will remain generally constant as the flow of liquid through the vessel varies. (auth)

  3. Co-axial discharges

    DOE Patents [OSTI]

    Luce, J. S.; Smith, L. P.

    1960-11-22

    An apparatus is described for producing coaxial arc discharges in an evacuated enclosure and within a strong, confining magnetic field. The arcs are maintained at a high potential difference. Electrons diffuse to the more positive arc from the negative arc, and positive ions diffuse from the more positive arc to the negative arc. Coaxial arc discharges have the advantuge that ions that return to strike the positive arc discharge will lose no energy since they do not strike a solid wall or electrode. These discharges are useful in confining an ionized plasma between the discharges and have the advantage of preventing impurities from the walls of the enclosure from entering the plasma area because of the arc barrier set up by the cylindrical outer arc. (auth)

  4. Influences of directionally solidified techniques and hafnium content on a nickel base high temperature alloy

    SciTech Connect (OSTI)

    Luobao, W.; Rongzhang, C.; Yuping, W.

    1984-03-01

    Two directionally solidified techniques, the power decrease (P.D.) and high rate solidification (H.R.S.) methods, are used to study the influences of the different Hf contents on the structures and properties of a nickel base high temperature alloy. When entering the alloy the Hf is mainly segregated in the interdentritic regions and gamma/gamma prime eutectic phases. After the alloy is added, there are noticeable changes in the microstructure. The amount of gamma/gamma prime eutectic phase noticeably increases. Its morphology also undergoes noticeable changes. The conditions of grain boundaries and interdentritic regions are improved. Several new types of Hf-rich microfacies also appeared. At 760 C, the endurance properties (especially the transverse properties) of the alloy noticeably rise with the increase of the Hf content. However, at 1040 C, the endurance life decreases with the increase of the Hf content. When the H.R.S. technique is used, the medium and high temperature performances of the alloy are both noticeably superior to the P.D. technique.

  5. Retail Infrastructure Costs Comparison for Hydrogen and Electricity for Light-Duty Vehicles: Preprint

    SciTech Connect (OSTI)

    Melaina, M.; Sun, Y.; Bush, B.

    2014-08-01

    Both hydrogen and plug-in electric vehicles offer significant social benefits to enhance energy security and reduce criteria and greenhouse gas emissions from the transportation sector. However, the rollout of electric vehicle supply equipment (EVSE) and hydrogen retail stations (HRS) requires substantial investments with high risks due to many uncertainties. We compare retail infrastructure costs on a common basis - cost per mile, assuming fueling service to 10% of all light-duty vehicles in a typical 1.5 million person city in 2025. Our analysis considers three HRS sizes, four distinct types of EVSE and two distinct EVSE scenarios. EVSE station costs, including equipment and installation, are assumed to be 15% less than today's costs. We find that levelized retail capital costs per mile are essentially indistinguishable given the uncertainty and variability around input assumptions. Total fuel costs per mile for battery electric vehicle (BEV) and plug-in hybrid vehicle (PHEV) are, respectively, 21% lower and 13% lower than that for hydrogen fuel cell electric vehicle (FCEV) under the home-dominant scenario. Including fuel economies and vehicle costs makes FCEVs and BEVs comparable in terms of costs per mile, and PHEVs are about 10% less than FCEVs and BEVs. To account for geographic variability in energy prices and hydrogen delivery costs, we use the Scenario Evaluation, Regionalization and Analysis (SERA) model and confirm the aforementioned estimate of cost per mile, nationally averaged, but see a 15% variability in regional costs of FCEVs and a 5% variability in regional costs for BEVs.

  6. Status of LLNL Hot-Recycled-Solid oil shale retort, January 1991--September 30, 1993

    SciTech Connect (OSTI)

    Cena, R.J.

    1993-11-01

    Our objective, together with our CRADA partners, is to demonstrate advanced technology that could lead to an economic and environmentally acceptable commercialization of oil shale. We have investigated the technical and economic barriers facing the introduction of an oil shale industry and we have chosen Hot-Recycled-Solid (HRS) oil shale retorting as the primary advanced technology of interest. We are investigating this approach through fundamental research, operation of a 4 tonne-per-day HRS pilot plant and development of an Oil Shale Process (OSP) mathematical model. The LLNL Hot-Recycled-Solid process has the potential to improve existing oil shale technology. It processes oil shale in minutes instead of hours, reducing plant size. It processes all oil shale, including fines rejected by other processes. It provides controls to optimize product quality for different applications. It co-generates electricity to maximize useful energy output. And, it produces negligible SO{sub 2} and NO{sub x} emissions, a non-hazardous waste shale and uses minimal water.

  7. Catalytic activity of oxidized (combusted) oil shale for removal of nitrogen oxides with ammonia as a reductant in combustion gas streams, Part 2

    SciTech Connect (OSTI)

    Reynolds, J.G.; Taylor, R.W.; Morris, C.J.

    1993-01-04

    Oxidized oil shale from the combustor in the LLNL Hot-Recycled-Solids (HRS) oil shale retorting process has been found to be a catalyst for removing nitrogen oxides from laboratory gas streams using NH[sub 3] as a reductant. Oxidized Green River oil shale heated at 10[degree]C/min in an Ar/O[sub 2]/NO/NH[sub 3] mixture ([approximately]93%/6%/2000 ppM/4000 ppM) with a gas residence time of [approximately]0.6 sec removed NO between 250 and 500[degree]C, with maximum removal of 70% at [approximately]400[degree]C. Under isothermal conditions with the same gas mixture, the maximum NO removal was [approximately]64%. When CO[sub 2] was added to the gas mixture at [approximately]8%, the NO removal dropped to [approximately]50%. However, increasing the gas residence time to [approximately]1.2 sec, increased NO removal to 63%. Nitrogen balances of these experiments suggest selective catalytic reduction of NO is occurring using NH[sub 3] as the reductant. These results are not based on completely optimized process conditions, but indicate oxidized oil shale is an effective catalyst for NO removal from combustion gas streams using NH[sub 3] as the reductant. Parameters calculated for implementing oxidized oil shale for NO[sub x] remediation on the current HRS retort indicate an abatement device is practical to construct.

  8. Catalytic activity of oxidized (combusted) oil shale for removal of nitrogen oxides with ammonia as a reductant in combustion gas streams, Part 2

    SciTech Connect (OSTI)

    Reynolds, J.G.; Taylor, R.W.; Morris, C.J.

    1993-01-04

    Oxidized oil shale from the combustor in the LLNL Hot-Recycled-Solids (HRS) oil shale retorting process has been found to be a catalyst for removing nitrogen oxides from laboratory gas streams using NH{sub 3} as a reductant. Oxidized Green River oil shale heated at 10{degree}C/min in an Ar/O{sub 2}/NO/NH{sub 3} mixture ({approximately}93%/6%/2000 ppM/4000 ppM) with a gas residence time of {approximately}0.6 sec removed NO between 250 and 500{degree}C, with maximum removal of 70% at {approximately}400{degree}C. Under isothermal conditions with the same gas mixture, the maximum NO removal was {approximately}64%. When CO{sub 2} was added to the gas mixture at {approximately}8%, the NO removal dropped to {approximately}50%. However, increasing the gas residence time to {approximately}1.2 sec, increased NO removal to 63%. Nitrogen balances of these experiments suggest selective catalytic reduction of NO is occurring using NH{sub 3} as the reductant. These results are not based on completely optimized process conditions, but indicate oxidized oil shale is an effective catalyst for NO removal from combustion gas streams using NH{sub 3} as the reductant. Parameters calculated for implementing oxidized oil shale for NO{sub x} remediation on the current HRS retort indicate an abatement device is practical to construct.

  9. Tristate electrochemical metallization memory based in the hydrogenated nanocrystalline silicon films

    SciTech Connect (OSTI)

    Yan, X. B.; Chen, Y. F.; Hao, H.; Zhang, E. P.; Shi, S. S.; Lou, J. Z.; Liu, Q.

    2014-08-18

    The hydrogenated nanocrystalline silicon (nc-Si:H) films have been fabricated as resistive switching medium by radio frequency plasma enhanced chemical vapor deposition technology. The constructed Ag/nc-Si:H/Pt structure exhibits stable three nonvolatile resistance states. Tristate resistive states with large ratio 10{sup 2} and 10{sup 5}, less variation of resistance, and long retention exceeding 2.3??10{sup 5?}s are observed in Ag/nc-Si:H/Pt stack. The temperature dependence of high resistance state (HRS) and intermediate resistance state (IRS) both show semiconductor behavior, and the temperature dependence of low resistance state (LRS) represents metallic property. Fitting results demonstrated that the conduction mechanism of HRS, IRS, and LRS showed space charge limited conduction (SCLC), tunneling, and ohmic characteristics, respectively. The discrete Ag filament with Si nanocrystalline and complete Ag filament is proposed to be responsible for the performance IRS and LRS. We supposed that the Ag{sup +} ions prefer to be reduced to Ag atoms near the Si nanocrystalline location. Si nanocrystalline between Ag nanoparticles contribute to the current transport at IRS.

  10. The Microscopic Magnetic Properties of W-type Hexaferrite Powder Prepared by A Sol-Gel Route

    SciTech Connect (OSTI)

    Jotania, Rajshree; Chauhan, Chetna; Sharma, Pooja

    2010-12-01

    Magnetic particles of W-type barium-calcium hexaferrite (BaCa{sub 2}Fe{sub 16}O{sub 27}) have been synthesized using a Stearic acid gel route. The gel precursors were dried at 100 deg. C for 2 hrs and then calcinated at 650 deg. C, 750 deg. C, 850 deg. C and 950 deg. C for 4 hrs in a furnace and slowly cooled to room temperature in order to obtain barium-calcium hexaferrite particles. The microscopic magnetic properties of prepared samples studying using Moessbauer spectroscopy. Moessbauer spectra of all samples were recorded at room temperature. Mossbauer parameters like Isomer shift, Quadruple splitting etc. were calculated with respect to iron foil. Barium calcium hexaferrite samples heated at 650 deg. C, 750 deg. C, 850 deg. C show relaxation type Moessbauer spectra along with paramagnetic doublet. The intensity of paramagnetic doublet increases with temperature confirm the presence of ferrous ions in the samples, where as sample calcinated at 950 deg. C confirm the presence of ferrimagnetic phase with partial super paramagnetic nature of prepared hexaferrite sample.

  11. ULTRAVIOLET PHOTOPRODUCTS IN ORDERED STRUCTURES OF POLY U AND...

    Office of Scientific and Technical Information (OSTI)

    Biol., 27: 131-44(July 14, 1967).; Other Information: Orig. Receipt Date: 31-DEC-68; Bib. Info. Source: DIX (Henry Dix) Research Org: Univ. of Toronto Sponsoring Org: USDOE Country ...

  12. HISTORY OF WEAK INTERACTIONS. (Technical Report) | SciTech Connect

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

    Report Number(s): NYO--1932(2)-186 DOE Contract Number: AT(30-1)-1932 Resource Type: Technical Report Resource Relation: Other Information: UNCL. Orig. Receipt Date: 31-DEC-71 ...

  13. Intrinsic SiO{sub x}-based unipolar resistive switching memory. II. Thermal effects on charge transport and characterization of multilevel programing

    SciTech Connect (OSTI)

    Chang, Yao-Feng Chen, Ying-Chen; Chen, Yen-Ting; Wang, Yanzhen; Xue, Fei; Zhou, Fei; Lee, Jack C.; Fowler, Burt

    2014-07-28

    Multilevel programing and charge transport characteristics of intrinsic SiO{sub x}-based resistive switching memory are investigated using TaN/SiO{sub x}/n{sup ++}Si (MIS) and TiW/SiO{sub x}/TiW (MIM) device structures. Current transport characteristics of high- and low-resistance states (HRS and LRS) are studied in both device structures during multilevel operation. Analysis of device thermal response demonstrates that the effective electron energy barrier is strongly dependent on the resistance of the programed state, with estimates of 0.1?eV in the LRS and 0.6?eV in the HRS. Linear data fitting and conductance analyses indicate Poole-Frenkel emission or hopping conductance in the low-voltage region, whereas Fowler-Nordheim (F-N) or trap-assisted tunneling (TAT) is indicated at moderate voltage. Characterizations using hopping transport lead to hopping distance estimates of ?1?nm in the LRS for both device structures. Relative permittivity values (?{sub r}) were extracted using the Poole-Frenkel formulism and estimates of local filament temperature, where ?{sub r} values were ?80 in the LRS and ?4 in the HRS, suggesting a strongly polarized medium in the LRS. The onset of F-N tunneling or TAT corresponds to an observed overshoot in the I-V response with an estimated threshold of 1.6??0.2?V, in good agreement with reported electro-luminescence results for LRS devices. Resistive switching is discussed in terms of electrochemical reactions between common SiO{sub 2} defects, and specific defect energy levels are assigned to the dominant transitions in the I-V response. The overshoot response in the LRS is consistent with TAT through either the E?' oxygen vacancy or the hydrogen bridge defect, both of which are reported to have an effective bandgap of 1.7?eV. The SET threshold at ?2.5?V is modeled as hydrogen release from the (Si-H){sub 2} defect to generate the hydrogen bridge, and the RESET transition is modeled as an electrochemical reaction that re-forms (Si

  14. In Vitro Phototoxicity and Hazard Identification of Nano-scale Titanium Dioxide

    SciTech Connect (OSTI)

    Sanders, Kristen; Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina ; Degn, Laura L.; Mundy, William R.; Zucker, Robert M.; Dreher, Kevin; Zhao, Baozhong; National Center for Nanoscience and Technology, Beijing ; Roberts, Joan E.; Fordham University, New York, New York ; and others

    2012-01-15

    Titanium dioxide nanoparticles (nano-TiO{sub 2}) catalyze reactions under UV radiation and are hypothesized to cause phototoxicity. A human-derived line of retinal pigment epithelial cells (ARPE-19) was treated with six samples of nano-TiO{sub 2} and exposed to UVA radiation. The TiO{sub 2} nanoparticles were independently characterized to have mean primary particle sizes and crystal structures of 22 nm anatase/rutile, 25 nm anatase, 31 nm anatase/rutile, 59 nm anatase/rutile, 142 nm anatase, and 214 nm rutile. Particles were suspended in cell culture media, sonicated, and assessed for stability and aggregation by dynamic light scattering. Cells were treated with 0, 0.3, 1, 3, 10, 30, or 100 ?g/ml nano-TiO{sub 2} in media for 24 hrs and then exposed to UVA (2 hrs, 7.53 J/cm{sup 2}) or kept in the dark. Viability was assessed 24 hrs after the end of UVA exposure by microscopy with a live/dead assay (calcein-AM/propidium iodide). Exposure to higher concentrations of nano-TiO{sub 2} with UVA lowered cell viability. The 25 nm anatase and 31 nm anatase/rutile were the most phototoxic (LC{sub 50} with UVA < 5 ?g/ml), while the 142 nm anatase and 214 nm rutile were the least phototoxic. An acellular assay ranked TiO{sub 2} nanoparticles for their UVA photocatalytic reactivities. The particles were found to be capable of generating thiobarbituric acid reactive substances (TBARS) under UVA. Flow cytometry showed that nano-TiO{sub 2} combined with UVA decreased cell viability and increased the generation of reactive oxygen species (ROS, measured by Mitosox). LC{sub 50} values under UVA were correlated with TBARS reactivity, particle size, and surface area. -- Highlights: ? Nano-TiO{sub 2} enters cells within 24 hours ? Nano-TiO{sub 2} causes dose-dependent cytotoxicity greatly enhanced by UVA radiation ? Treatment with nano-TiO{sub 2} and UVA produces reactive oxygen species ? Phototoxicity is correlated with particle size, surface area, and TBARS reactivity.

  15. Preparation of UC0.07-0.10N0.90-0.93 spheres for TRISO coated fuel particles

    SciTech Connect (OSTI)

    Collins, Jack Lee; Hunt, Rodney Dale; Johnson, Jared A; Silva, Chinthaka M; Lindemer, Terrence

    2014-01-01

    The U.S. Department of Energy is considering a new nuclear fuel, which should be much more impervious during a loss of coolant accident. The fuel would consist of tristructural isotropic coated particles with dense uranium nitride (UN) kernels. The objectives of this effort are to make uranium oxide microspheres with adequately dispersed carbon nanoparticles and to convert these microspheres into UN kernels. Recent improvements to internal gelation process were successfully applied to the production of uranium gel spheres with different concentrations of carbon black. After the spheres were washed, a simple, two-step heat profile was used to produce kernels with a chemical composition of UC0.07 0.10N0.90 0.93. The first step involved heating the microspheres to 2023 K in a vacuum, and in the second step, the microspheres were held at 1873 K for 6 hrs in nitrogen.

  16. Richard Gerber & Clayton Bagwell! NUG Business Meeting!

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

    -- 1 --- Allocations Summary * How t he N ERSC p ie i s d istributed - A l i'le h istory * DOE O ffices & P rograms * NERSC r eserves * The E RCAP p rocess * How u ser a ccounts a nd a llocaBons w ork * What h appens w hen u ser/repo r un o ut o f B me * Q & A --- 2 --- Allocations History 0 500000000 1E+09 1.5E+09 2E+09 2.5E+09 3E+09 3.5E+09 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 NERSC DOE P roducEon --- 3 --- 3 Billion Hrs 55 M illion H rs --- 4 --- 2017

  17. Erosion enhanced corrosion in superheaters

    SciTech Connect (OSTI)

    Bakker, W.T.; Mitra, S.M.

    1994-12-31

    Abnormal high metal wastage rates were discovered in the reheater of a boiler at the Williams Station on South Carolina Electric and Gas Company, which had been converted from oil to coal firing in 1983. Originally, liquid coal ash corrosion was suspected as the cause of the accelerated corrosion. To confirm this, test spools of austenitic alloys with varying chromium content were installed in the most corrosion prone areas and exposed for 17,431 hrs. It was found that the metal loss rate, ranged from 15--21 mils/yr was independent of the chromium content of the alloy. Microscopic examination indicated that the high corrosion rate was probably due to alternating oxidizing and reducing conditions, which caused the formation of iron and sulfur rich scales, enhanced by fly ash erosion in areas of high gas velocity.

  18. A comparative study of conventionally sintered and microwave sintered nickel zinc ferrite

    SciTech Connect (OSTI)

    Rani, Rekha; Juneja, J. K.; Raina, K. K.; Kotnala, R. K.; Prakash, Chandra

    2014-04-24

    For the present work, nickel zinc ferrite having compositional formula Ni{sub 0.8}Zn{sub 0.2}Fe{sub 2}O{sub 4} was synthesized by conventional solid state method and sintered in conventional and microwave furnaces. Pellets were sintered with very short soaking time of 10 min at 1150 °C in microwave furnace whereas 4 hrs of soaking time was selected for conventional sintering at 1200 °C. Phase formation was confirmed by X-ray diffraction analysis technique. Scanning electron micrographs were taken for microstructural study. Dielectric properties were studied as a function of temperature. To study magnetic behavior, M-H hysteresis loops were recorded for both samples. It is observed that microwave sintered sample could obtain comparable properties to the conventionally sintered one in lesser soaking time at lower sintering temperature.

  19. MA AP MA MA MA AP AP MA MA MA AP AP

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

    AP MA MA MA AP AP MA MA MA AP AP low low low AP MA Run PAMM / AP Low alpha University Holidays AP/PAMM Spear Down Hrs S 30 31 S 30 5260 832 6092 2013 2014 Scheduled Hours Users Total 29 31 30 29 31 30 F 31 28 29 30 T 31 28 27 29 28 30 30 27 29 W 30 29 26 29 27 31 28 AP T 29 26 29 27 AP PAMM 30 28 25 31 28 26 30 27 30 28 26 M 28 25 29 27 24 30 27 25 29 26 S 27 24 28 26 23 27 29 26 24 28 25 S 26 23 28 26 24 23 27 25 28 28 25 25 22 27 24 25 23 F 25 26 24 21 27 24 22 26 23 22 27 T 24 21 20 24 22 21

  20. The Development of Low-Cost Integrated Composite Seal for SOFC: Materials and Design Methodologies

    SciTech Connect (OSTI)

    Xinyu Huang; Kristoffer Ridgeway; Srivatsan Narasimhan; Serg Timin; Wei Huang; Didem Ozevin; Ken Reifsnider

    2006-07-31

    This report summarizes the work conducted by UConn SOFC seal development team during the Phase I program and no cost extension. The work included composite seal sample fabrication, materials characterizations, leak testing, mechanical strength testing, chemical stability study and acoustic-based diagnostic methods. Materials characterization work revealed a set of attractive material properties including low bulk permeability, high electrical resistivity, good mechanical robustness. Composite seal samples made of a number of glasses and metallic fillers were tested for sealing performance under steady state and thermal cycling conditions. Mechanical testing included static strength (pull out) and interfacial fracture toughness measurements. Chemically stability study evaluated composite seal material stability after aging at 800 C for 168 hrs. Acoustic based diagnostic test was conducted to help detect and understand the micro-cracking processes during thermal cycling test. The composite seal concept was successfully demonstrated and a set of material (coating composition & fillers) were identified to have excellent thermal cycling performance.

  1. Effects of Extreme Sleep Deprivation on Human Performance

    SciTech Connect (OSTI)

    Tuan Tran; Kimberly R. Raddatz; Elizabeth T. Cady; Bradford Amstutz; Pete D. Elgin; Christopher Vowels; Gerald Deehan

    2007-04-01

    Sleep is a fundamental recuperative process for the nervous system. Disruption of this homeostatic drive can lead to severe impairments of the operators ability to perceive, recognize, and respond to emergencies and/or unanticipated events, putting the operator at risk. Therefore, establishing a comprehensive understanding of how sleep deprivation influences human performance is essential in order to counter fatigue or to develop mitigation strategies. The goal of the present study was to examine the psychological effects of prolonged sleep deprivation (approx. 75 hrs) over a four-day span on a general aviation pilot flying a fixed-based flight simulator. During the study, a series of tasks were employed every four hours in order to examine the pilots perceptual and higher level cognitive abilities. Overall, results suggest that the majority of cognitive and perceptual degradation occurs between 30-40 hours into the flight. Limitations and future research directions are also discussed.

  2. Performance of 3-cell Seamless Niobium cavities

    SciTech Connect (OSTI)

    Kneisel, Peter K. [JLAB; Ciovati, Gianluigi [JLBA; Jelezov, I. [DESY, Hamburg; Singer, W. [DESY, Hamburg; Singer, X. [DESY, Hamburg

    2009-11-01

    In the last several months we have surface treated and cryogenically tested three TESLA-type 3-cell cavities, which had been manufactured at DESY as seamless assemblies by hydroforming. The cavities were completed at JLab with beam tube/flange assemblies. All three cavities performed very well after they had been post-purified with titanium at 1250C for 3 hrs. The cavities, two of which consisted of an end cell and 2 center cells and one was a center cell assembly, achieved gradients of Eacc = 32 MV/m, 34 MV/m and 35 MV/m without quenches. The performance was limited by the appearance of the Q-drop in the absence of field emission. This contribution reports about the various measurements undertaken with these cavities.

  3. Development of Advanced Manufacturing Methods for Warm White LEDs for General Lighting

    SciTech Connect (OSTI)

    Deshpande, Anirudha; Kolodin, Boris; Jacob, Cherian; Chowdhury, Ashfaqul; Kuenzler, Glenn; Sater, Karen; Aesram, Danny; Glaettli, Steven; Gallagher, Brian; Langer, Paul; Setlur, Anant; Beers, Bill

    2012-03-31

    GE Lighting Solutions will develop precise and efficient manufacturing techniques for the remote phosphor platform of warm-white LED products. In volume, this will be demonstrated to drive significant materials, labor and capital productivity to achieve a maximum possible 53% reduction in overall cost. In addition, the typical total color variation for these white LEDs in production will be well within the ANSI bins and as low as a 4-step MacAdam ellipse centered on the black body curve. Achievement of both of these objectives will be demonstrated while meeting a performance target of > 75 lm/W for a warm-white LED and a reliability target of <30% lumen drop / <2-step MacAdam ellipse shift, estimated over 50,000 hrs.

  4. High resolution transmission electron microscopy of aluminophosphates

    SciTech Connect (OSTI)

    Ulan, J.G.; Gronsky, R. ); Szostak, R. ); Sorby, K. . Dept. of Chemistry)

    1990-04-01

    VPI-5 transforms to AlPO{sub 4}-8 under mild thermal treatment (100{degree}C, 18 hrs). HRTEM micrographs, oriented normal to the c axis, show extensive defect-free regions in VPI-5, while slip planes normal to the c axis are found in AlPO{sub 4}-8. Analysis of the HRTEM data, in conjunction with infrared and thermal analysis, adsorption studies and x-ray powder diffraction, has lead to a proposed structure for AlPO{sub 4}-8. Though the sheets containing the 18 member rings which define the pores in VPI-5 remain intact in AlPO{sub 4}-8, reduction in the porosity is attributed to blockages created by the movement of these sheets relative to each other. 8 refs., 7 figs.

  5. Microsoft PowerPoint - ACTIVE_NYC_2006_1.ppt

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

    Particle Imager data from the Egret P. Connolly♣, K. Bower♣, M. Gallagher♣, G. Vaughan♣, T. Choularton♣, G. Allen♣, A. Heymsfield ♥ ♣School of Earth,Atmospheric and Environmental Sciences, The University of Manchester. ♥NCAR, USA 16.5 17 17.5 18 18.5 19 0 0.2 0.4 AE04, 16-Nov-2005 N 100-1800 µm (cm -3 ) CIP sph col plt sir bir 16.5 17 17.5 18 18.5 19 0 0.5 1 IWC (gm -3 ) 16.5 17 17.5 18 18.5 19 -60 -50 -40 -30 TIME (hrs) T ( ° C) 10 0 10 1 10 2 10 3 10 4 10 -8 10 -7 10 -6 10

  6. Complementary mechanisms of plant cell wall deconstruction by free and complexed enzyme systems

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

    Complementary m echanisms o f plant c ell w all d econstruc5on by f ree a nd complexed e nzyme systems Energy I nnova5on P ortal's A ccelera5ng I nnova5on W ebinar Dr. M ichael R esch Research S cien5st Biomolecular S ciences 8/8/2012 2 Conversion o f B iomass t o F uels 3 Free vs. Complexed Enzymes 4 Cellulosomes are Better at Degrading Cellulose than CTec2 100 80 60 40 20 0 Conversion [%] 120 100 80 60 40 20 0 Time [hrs] Cellulosome CTec2 100 80 60 40 20 0 Conversion [%] 120 100 80 60 40 20 0

  7. Ultraviolet high-spectral-resolution Doppler lidar for measuring wind field and aerosol optical properties

    SciTech Connect (OSTI)

    Imaki, Masaharu; Kobayashi, Takao

    2005-10-01

    An ultraviolet incoherent Doppler lidar that incorporates the high-spectral-resolution (HSR) technique has been developed for measuring the wind field and aerosol optical properties in the troposphere. An injection seeded and tripled Nd:YAG laser at an ultraviolet wavelength of 355 nm was used in the lidar system. The HRS technique can resolve the aerosol Mie backscatter and the molecular Rayleigh backscatter to derive the signal components. By detecting the Mie backscatter, a great increase in the Doppler filter sensitivity was realized compared to the conventional incoherent Doppler lidars that detected the Rayleigh backscatter. The wind velocity distribution in a two-dimensional cross section was measured. By using the HSR technique, multifunction and absolute value measurements were realized for aerosol extinction, and volume backscatter coefficients; the laser beam transmittance, the lidar ratio, and the backscatter ratio are derived from these measurements.

  8. Design and performance of a high-pressure Fischer-Tropsch fluidized bed reactor

    SciTech Connect (OSTI)

    Weimer, A.W.; Quarderer, G.J.; Cochran, G.A.; Conway, M.M. )

    1988-01-01

    A 900 kg/day, CO/H/sub 2/, high-pressure, fluidized bed, pilot reactor was designed from first principles to achieve high reactant conversions and heat removal rates for the Fischer-Tropsch (F-T) synthesis of liquefied petroleum gases (LPG's). Suppressed bubble growth at high pressure allowed high reactant conversions which nearly matched those obtained at identical conditions in a lab scale fixed bed reactor. For GHSV approximately 1400 hr/sup -1/ and T = 658 {Kappa} at P approximately 7000 {kappa}Pa, reactant conversion exceeded 75%. The reactor heat removal capability exceeded twice design performance with the fluidized bed easily operating under thermally stable conditions. The fluidized catalyst was a potassium promoted, molybdenum on carbon (Mo/{Kappa}/C) catalyst which did not produce any detrimental waxy products. Long catalyst lifetimes of 1000 hrs on steam between regenerations allowed the fluidized bed to be operated in a batch mode.

  9. Characterization study of conventional chromium films, amorphous bright chromium deposited (ABCD) films, N{sup +} implanted ABCD films and the preparation of ABCD films using propionic acid as an organic additive

    SciTech Connect (OSTI)

    Gonzalez, R.I.

    1998-05-01

    Electroplated chromium films are widely used and are extremely important in industrial processes because the films produced are hard, corrosion resistant, bright and have good adhesive properties. Unfortunately, the utilization of conventional Cr layers is limited to low-temperature applications (generally less than 500C) because they soften at elevated temperatures. This problem has been overcome through the development of the amorphous bright chromium deposition (ABCD) method. In the ABCD method organic compounds containing -CHO or -COOH groups are added to the electroplating bath, and the bath is operated under different conditions than the conventional Sargent bath. The resulting ABCD films have exceptional properties compared to conventional Cr films. Most importantly, the hardness of ABCD films increases greatly either by annealing at fairly low temperatures for long periods (2000C for 48 hrs) or higher temperatures for shorter periods (6000C for 1/2 hr) thereby opening new application areas for Cr layers.

  10. Neutron transversity measurement at Jefferson Lab with a polarized He-3 target

    SciTech Connect (OSTI)

    Gao, H; Chen, J P; Cisbani, E; Jiang, X; Peng, J C; Qian, X; Zhu, L Y

    2007-12-01

    A first measurement of single target spin asymmetry (SSA) from semi-inclusive electroproduction of charged pions from a transversely polarized 3He target in deep-inelastic-scattering kinematics will take data in Hall A at Jefferson Lab in 2008. Such SSA will allow for an extraction of the much desired information on the Collins and Sivers asymmetry from the neutron in order to probe the quark transversity distributions. The experiment will be a coincidence measurement with the BigBite spectrometer detecting the scattered electrons and the left-arm HRS spectrometer detecting the charged pions. The prospect of future 11 GeV measurements at Jefferson Lab in Hall A using a solenoid magnetic detector system is also discussed in this talk.

  11. Ga-67 vs In-111-DTPA-anti-p97 monoclonal antibody (MoAb) for scintigraphic detection of metastatic melanoma

    SciTech Connect (OSTI)

    Neumann, R.D.; Kirkwood, J.M.; Zoghbi, S.S.; Ernstoff, M.S.; Cornelius, E.A.; Hoffer, P.B.; Gottschalk, A.

    1985-05-01

    The authors have initiated a prospective comparative evaluation of tomographic (Pho/Con) Ga-67 (10 mCi) scintigraphy versus computerized gamma camera radioimmunoscintigraphy using anti-p97 murine MoAb (5 mCi In-111-DTPA conjugated to 1 mg MoAb + 19 mgs ''cold'' MoAb) for detection of metastatic melanoma. To date 9 patients have had both a Ga-67 scan and an anti-p97 MoAb study within a 1 month interval. The 9 patients had 45 known sites of disease greater than 1 cm minimum diameter, located in skin, soft tissue, and/or viscea. In-111-anti-p97 scans were done 72 hrs after i.v. administration of the radiolabeled MoAb mixed together with the ''cold'' carrier MoAb. Ga-67 scans were done 48-72 hrs after injection. MoAb scans detected 30/45 known sites (sensitivity=67%) while the Ga-67 scans found 29/45 of these known sites (sensitivity=64%). Heterogeneity of metastases was evident with the detection of partly overlapping subsets of metastases by the two techniques, i.e. some mets were localized with both techniques while other mets were detected by only one of the two methods. Combined detection with both techniques improved sensitivity from 64-67% to 91%. These preliminary data suggest: 1) comparable sensitivities for Ga-67 and In-111-DTPA anti-p97 scans, 2) heterogeneity of metastases with regard to the localization of these two agents, and 3) improved sensitivity by combining both techniques.

  12. Extracting uranium from seawater: Promising AF series adsorbents

    SciTech Connect (OSTI)

    Das, Sadananda; Oyola, Y.; Mayes, Richard T.; Janke, Christopher James; Kuo, Li-Jung; Gill, Gary; Wood, Jordana; Dai, Sheng

    2015-11-02

    Here, a new family of high surface area polyethylene fiber adsorbents (AF series) was recently developed at the Oak Ridge National Laboratory (ORNL). The AF series of were synthesized by radiation-induced graft polymerization of acrylonitrile and itaconic acid (at different monomer/co-monomer mol ratios) onto high surface area polyethylene fibers. The degree of grafting (%DOG) of AF series adsorbents was found to be 154 354%. The grafted nitrile groups were converted to amidoxime groups by treating with hydroxylamine. The amidoximated adsorbents were then conditioned with 0.44M KOH at 80 C followed by screening at ORNL with simulated seawater spiked with 8 ppm uranium. Uranium adsorption capacity in simulated seawater screening ranged from 170-200 g-U/kg-ads irrespective of %DOG. A monomer/co-monomer mol ratio in the range of 7.57-10.14 seemed to be optimum for highest uranium loading capacity. Subsequently, the adsorbents were also tested with natural seawater at Pacific Northwest National Laboratory (PNNL) using flow-through exposure uptake experiments to determine uranium loading capacity with varying KOH conditioning time at 80 C. The highest adsorption capacity of AF1 measured after 56 days of marine testing was demonstrated as 3.9 g-U/kg-adsorbent and 3.2 g-U/kg-adsorbent for 1hr and 3hrs of KOH conditioning at 80 C, respectively. Based on capacity values of several AF1 samples, it was observed that changing KOH conditioning from 3hrs to 1hr at 80 C resulted in 22-27% increase in uranium loading capacity in seawater.

  13. Extracting uranium from seawater: Promising AF series adsorbents

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

    Das, Sadananda; Oyola, Y.; Mayes, Richard T.; Janke, Christopher James; Kuo, Li-Jung; Gill, Gary; Wood, Jordana; Dai, Sheng

    2015-11-02

    Here, a new family of high surface area polyethylene fiber adsorbents (AF series) was recently developed at the Oak Ridge National Laboratory (ORNL). The AF series of were synthesized by radiation-induced graft polymerization of acrylonitrile and itaconic acid (at different monomer/co-monomer mol ratios) onto high surface area polyethylene fibers. The degree of grafting (%DOG) of AF series adsorbents was found to be 154 354%. The grafted nitrile groups were converted to amidoxime groups by treating with hydroxylamine. The amidoximated adsorbents were then conditioned with 0.44M KOH at 80 C followed by screening at ORNL with simulated seawater spiked with 8more » ppm uranium. Uranium adsorption capacity in simulated seawater screening ranged from 170-200 g-U/kg-ads irrespective of %DOG. A monomer/co-monomer mol ratio in the range of 7.57-10.14 seemed to be optimum for highest uranium loading capacity. Subsequently, the adsorbents were also tested with natural seawater at Pacific Northwest National Laboratory (PNNL) using flow-through exposure uptake experiments to determine uranium loading capacity with varying KOH conditioning time at 80 C. The highest adsorption capacity of AF1 measured after 56 days of marine testing was demonstrated as 3.9 g-U/kg-adsorbent and 3.2 g-U/kg-adsorbent for 1hr and 3hrs of KOH conditioning at 80 C, respectively. Based on capacity values of several AF1 samples, it was observed that changing KOH conditioning from 3hrs to 1hr at 80 C resulted in 22-27% increase in uranium loading capacity in seawater.« less

  14. Development of a reliable, miniaturized hydrogen safety sensor prototype

    SciTech Connect (OSTI)

    Sekhar, Praveen K; Brosha, Eric L; Rangachary, Mukundan; Garzon, Fernando H; Williamson, Todd L

    2010-01-01

    In this article, the development and long-term testing of a hydrogen safety sensor for vehicle and infrastructure applications is presented. The working device is demonstrated through application of commercial and reproducible manufacturing methods and rigorous life testing results guided by materials selection, and sensor design. Fabricated using Indium Tin Oxide (ITO) as the sensing electrode, Yttria-Stabilized Zirconia (YSZ) as an oxygen ion conducting solid electrolyte and Platinum (Pt) as a pseudo-counter electrode, the device was subjected to interference studies, temperature cycling, and long-testing routine. The sensor responded in real time to varying concentrations of H{sub 2} (1000 to 20,000 ppm) monitored under a humidified condition. Among the interference gases tested such as nitric oxide (NO), nitrogen dioxide (NO{sub 2}), ammonia (NH{sub 3}), carbon monoxide (CO), and propylene (C{sub 3}H{sub 6}), the sensor showed cross-sensitivity to C{sub 3}H{sub 6}. Analyzing the overall device performance over 4000 hrs of testing for 5000 ppm of H{sub 2}, (a) the sensitivity varied {+-}21% compared to response recorded at 0 hrs, and (c) the response rise time fluctuated between 3 to 46 s. The salient features of the H{sub 2} sensor prototype designed and co-developed by Los Alamos National Laboratory (LANL) are (a) stable three phase interface (electrode/electrolyte/gas) leading to reliable sensor operation, (b) low power consumption, (b) compactness to fit into critical areas of application, (c) simple operation, (d) fast response, (e) a direct voltage read-out circumventing the need for any additional conditioning circuitry, and (f) conducive to commercialization.

  15. SECA Coal-Based Systems

    SciTech Connect (OSTI)

    Pierre, Joseph

    2010-09-10

    This report documents the results of Cooperative Agreement DE-FC26-05NT42613 between Siemens Energy and the U.S. Department of Energy for the period October 1, 2008 through September 30, 2010. The Phase I POCD8R0 stack test was successfully completed as it operated for approximately 5,300 hrs and achieved all test objectives. The stack test article contained twenty-four 75 cm active length Delta8 scandiastabilized zirconia cells. Maximum power was approximately 10 kWe and the SOFC generator demonstrated an availability factor of 85% at 50% power or greater. The Phase II POCD8R1 stack test operated for approximately 410 hrs before being aborted due to a sudden decrease in voltage accompanied by a rapid increase in temperature. The POCD8R1 test article contained forty-eight 100 cm active length Delta8 scandiastabilized zirconia cells arranged in an array of six bundles, with each bundle containing eight cells. Cell development activities resulted in an approximate 100% improvement in cell power at 900°C. Cell manufacturing process improvements led to manufacturing yields of greater than 40% for the Delta8 cells. Delta8 cells with an active length of 100 cm were successfully manufactured as were cells with a seamless closed end. A pressurized cell test article was assembled, installed into the pressurized test facility and limited pressurized testing conducted. Open circuit voltage tests were performed at one and three atmospheres at 950°C were in agreement with the theoretical increase in the Nernst potential. Failed guard heaters precluded further testing. The SOFC analytical basis for the baseline system was validated with experimental data. Two system configurations that utilize a pressurized SOFC design with separated anode and cathode streams were analyzed. System efficiencies greater than 60% were predicted when integrating the separated anode and cathode stream module configuration with a high efficiency catalytic gasifier.

  16. SECA Coal-Based Systems

    SciTech Connect (OSTI)

    Joseph Pierre

    2010-09-01

    This report documents the results of Cooperative Agreement DE-FC26-05NT42613 between Siemens Energy and the U.S. Department of Energy for the period October 1, 2008 through September 30, 2010. The Phase I POCD8R0 stack test was successfully completed as it operated for approximately 5,300 hrs and achieved all test objectives. The stack test article contained twenty-four 75 cm active length Delta8 scandia-stabilized zirconia cells. Maximum power was approximately 10 kWe and the SOFC generator demonstrated an availability factor of 85% at 50% power or greater. The Phase II POCD8R1 stack test operated for approximately 410 hrs before being aborted due to a sudden decrease in voltage accompanied by a rapid increase in temperature. The POCD8R1 test article contained forty-eight 100 cm active length Delta8 scandia-stabilized zirconia cells arranged in an array of six bundles, with each bundle containing eight cells. Cell development activities resulted in an approximate 100% improvement in cell power at 900°C. Cell manufacturing process improvements led to manufacturing yields of greater than 40% for the Delta8 cells. Delta8 cells with an active length of 100 cm were successfully manufactured as were cells with a seamless closed end. A pressurized cell test article was assembled, installed into the pressurized test facility and limited pressurized testing conducted. Open circuit voltage tests were performed at one and three atmospheres at 950°C were in agreement wi th the theoretical increase in the Nernst potential. Failed guard heaters precluded further testing. The SOFC analytical basis for the baseline system was validated with experimental data. Two system configurations that utilize a pressurized SOFC design with separated anode and cathode streams were analyzed. System efficiencies greater than 60% were predicted when integrating the separated anode and cathode stream module configuration with a high efficiency catalytic gasifier.

  17. PEM fuel cell durability studies

    SciTech Connect (OSTI)

    Borup, Rodney L; Davey, John R; Ofstad, Axel B; Xu, Hui

    2008-01-01

    The durability of polymer electrolyte membrane (PEM) fuel cells is a major barrier to the commercialization for stationary and transportation power applications. For transportation applications, the durability target for fuel cell power systems is a 5,000 hour lifespan and able to function over a range of vehicle operating conditions (-40{sup o} to +40{sup o}C). However, durability is difficult to quantify and improve because of the quantity and duration of testing required, and also because the fuel cell stack contains many components, for which the degradation mechanisms, component interactions and effects of operating conditions are not fully understood. These requirements have led to the development of accelerated testing protocols for PEM fuel cells. The need for accelerated testing methodology is exemplified by the times required for standard testing to reach their required targets: automotive 5,000 hrs = {approx} 7 months; stationary systems 40,000 hrs = {approx} 4.6 years. As new materials continue to be developed, the need for relevant accelerated testing increases. In this investigation, we examine the durability of various cell components, examine the effect of transportation operating conditions (potential cycling, variable RH, shut-down/start-up, freeze/thaw) and evaluate durability by accelerated durability protocols. PEM fuel cell durability testing is performed on single cells, with tests being conducted with steady-state conditions and with dynamic conditions using power cycling to simulate a vehicle drive cycle. Component and single-cell characterization during and after testing was conducted to identify changes in material properties and related failure mechanisms. Accelerated-testing experiments were applied to further examine material degradation.

  18. Energy impacts of attic duct retrofits in Sacramento houses

    SciTech Connect (OSTI)

    Jump, D.; Modera, M.

    1994-08-01

    Inefficiencies in air distribution systems have been identified as a major source of energy loss in US sunbelt homes. Research indicates that approximately 30--40% of the thermal energy delivered to the ducts passing through unconditioned spaces is lost through air leakage and conduction through the duct walls. Field experiments over the past several years have well documented the expected levels of air leakage and the extent to which that leakage can be reduced by retrofit. Energy savings have been documented to a more limited extent, based upon a few field studies and simulation model results. Simulations have also indicated energy loss through ducts during the off cycle caused by thermosiphon-induced flows, however this effect had not been confirmed experimentally. A field study has been initiated to separately measure the impacts of combined duct leak sealing and insulation retrofits, and to optimize a retrofit protocol for utility DSM programs. This paper describes preliminary results from 6 winter and 5 summer season houses. These retrofits cut overall duct leakage area approximately 64%, which translated to a reduction in envelope ELA of approximately 14%. Wrapping ducts and plenums with R-6 insulation translated to a reduction in average flow-weighted conduction losses of 33%. These experiments also confirmed the appropriateness of using duct ELA and operating pressures to estimate leakage flows for the population, but indicated significant variations between these estimates and measured flows on a house by house basis. In addition, these experiments provided a confirmation of the predicted thermosiphon flows, both under winter and summer conditions. Finally, average material costs were approximately 20% of the total retrofit costs, and estimates of labor required for retrofits based upon these experiments were: 0.04 person-hrs/cm{sup 2} of duct sealed and 0.21 person-hrs/m{sup 2} of duct insulated.

  19. Final Scientific/Technical Report "Arc Tube Coating System for Color Consistency"

    SciTech Connect (OSTI)

    Buelow, Roger; Jenson, Chris; Kazenski, Keith

    2013-03-21

    DOE has enabled the use of coating materials using low cost application methods on light sources to positively affect the output of those sources. The coatings and light source combinations have shown increased lumen output of LED fixtures (1.5%-2.0%), LED arrays (1.4%) and LED powered remote phosphor systems – Philips L-Prize lamp (0.9%). We have also demonstrated lifetime enhancements (3000 hrs vs 8000 hrs) and shifting to higher CRI (51 to 65) in metal halide high intensity discharge lamps with metal oxide coatings. The coatings on LEDs and LED products are significant as the market is moving increasingly more towards LED technology. Enhancements in LED performance are demonstrated in this work through the use of available materials and low cost application processes. EFOI used low refractive index fluoropolymers and low cost dipping processes for application of the material to surfaces related to light transmission of LEDs and LED products. Materials included Teflon AF, an amorphous fluorinated polymer and fluorinated acrylic monomers. The DOE SSL Roadmap sets goals for LED performance moving into the future. EFOI’s coating technology is a means to shift the performance curve for LEDs. This is not limited to one type of LED, but is relevant across LED technologies. The metal halide work included the use of sol-gel solutions resulting in silicon dioxide and titanium dioxide coatings on the quartz substrates of the metal halide arc tubes. The coatings were applied using low cost dipping processes.

  20. Weldable, age hardenable, austenitic stainless steel

    DOE Patents [OSTI]

    Brooks, J.A.; Krenzer, R.W.

    1975-07-22

    An age hardenable, austenitic stainless steel having superior weldability properties as well as resistance to degradation of properties in a hydrogen atmosphere is described. It has a composition of from about 24.0 to about 34.0 weight percent (w/o) nickel, from about 13.5 to about 16.0 w/o chromium, from about 1.9 to about 2.3 w/o titanium, from about 1.0 to about 1.5 w/ o molybdenum, from about 0.01 to about 0.05 w/o carbon, from about 0 to about 0.25 w/o manganese, from about 0 to about 0.01 w/o phosphorous and preferably about 0.005 w/o maximum, from about 0 to about 0.010 w/o sulfur and preferably about 0.005 w/o maximum, from about 0 to about 0.25 w/o silicon, from about 0.1 to about 0.35 w/o aluminum, from about 0.10 to about 0.50 w/o vanadium, from about 0 to about 0.0015 w/o boron, and the balance essentially iron. (auth)

  1. SOARCA Peach Bottom Atomic Power Station Long-Term Station Blackout Uncertainty Analysis: Knowledge Advancement.

    SciTech Connect (OSTI)

    Gauntt, Randall O.; Mattie, Patrick D.; Bixler, Nathan E.; Ross, Kyle; Cardoni, Jeffrey N; Kalinich, Donald A.; Osborn, Douglas M.; Sallaberry, Cedric Jean-Marie; Ghosh, S. Tina

    2014-02-01

    This paper describes the knowledge advancements from the uncertainty analysis for the State-of- the-Art Reactor Consequence Analyses (SOARCA) unmitigated long-term station blackout accident scenario at the Peach Bottom Atomic Power Station. This work assessed key MELCOR and MELCOR Accident Consequence Code System, Version 2 (MACCS2) modeling uncertainties in an integrated fashion to quantify the relative importance of each uncertain input on potential accident progression, radiological releases, and off-site consequences. This quantitative uncertainty analysis provides measures of the effects on consequences, of each of the selected uncertain parameters both individually and in interaction with other parameters. The results measure the model response (e.g., variance in the output) to uncertainty in the selected input. Investigation into the important uncertain parameters in turn yields insights into important phenomena for accident progression and off-site consequences. This uncertainty analysis confirmed the known importance of some parameters, such as failure rate of the Safety Relief Valve in accident progression modeling and the dry deposition velocity in off-site consequence modeling. The analysis also revealed some new insights, such as dependent effect of cesium chemical form for different accident progressions. (auth)

  2. Some Comments on the Decays of eta (550)

    DOE R&D Accomplishments [OSTI]

    Veltman, M.; Yellin, J.

    1966-07-01

    Various decay modes of the {eta}(500) are discussed. The relations, through SU{sub 3} and the Gell-Mann, Sharp, Wagner model, between the {eta}-decay modes and the modes {eta} {yields} {pi}{pi}{gamma), {pi}{sup 0} {yields} {gamma}{gamma} are investigated taking into account {eta}-{eta}{sup *} mixing. The present experimental values for the neutral branching ratios plus the shape of the {eta} {yields} {pi}{sup +}{pi}{sup {minus}}{pi}{sup 0} Dalitz plot are shown to require a 25% {vert_bar}{Delta}{rvec I}{vert_bar} = 3 contribution to the {eta} {yields} 3{pi} amplitude. The connection between a possible charge asymmetry in {eta} {yields} {pi}{sup +}{pi}{sup {minus}}{pi}{sup 0} and the branching ratio {Gamma}{sub {eta} {yields} {pi}{sup 0}e{sup +}e{sup {minus}}}/{Gamma}{sub {eta}}{sup all} is investigated in the framework of a model proposed earlier by several authors. It is shown that there is no conflict between the existing data and this model. The Dalitz plot distribution of {eta} {yields} {pi}{sup +}{pi}{sup {minus}}{pi}{sup 0} is discussed under various assumptions about the properties of the interaction responsible for the decay. (auth)

  3. Electric Bike Sharing--System Requirements and Operational Concepts

    SciTech Connect (OSTI)

    Cherry, Christopher; Worley, Stacy; Jordan, David

    2010-08-01

    Bike sharing is an exciting new model of public-private transportation provision that has quickly emerged in the past five years. Technological advances have overcome hurdles of early systems and cities throughout the globe are adopting this model of transportation service. Electric bikes have simultaneously gained popularity in many regions of the world and some have suggested that shared electric bikes could provide an even higher level of service compared to existing systems. There are several challenges that are unique to shared electric bikes: electric-assisted range, recharging protocol, and bike and battery checkout procedures. This paper outlines system requirements to successfully develop and deploy an electric bike sharing system, focusing on system architecture, operational concepts, and battery management. Although there is little empirical evidence, electric bike sharing could be feasible, depending on demand and battery management, and can potentially improve the utility of existing bike sharing systems. Under most documented bike sharing use scenarios, electric bike battery capacity is insufficient for a full day of operation, depending on recharging protocol. Off-board battery management is a promising solution to address this problem. Off-board battery management can also support solar recharging. Future pilot tests will be important and allow empirical evaluation of electric bikesharing system performance. (auth)

  4. Azimuthal anisotropy in U+U collisions at STAR

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

    Wang, Hui; Sorensen, Paul

    2014-10-06

    The azimuthal anisotropy of particle production is commonly used in high-energy nuclear collisions to study the early evolution of the expanding system. The prolate shape of uranium nuclei makes it possible to study how the geometry of the colliding nuclei affects #12;final state anisotropies. It also provides a unique opportunity to understand how entropy is produced in heavy ion collisions. In this paper, the two- and four- particle cumulant v2 (v2{2} and v2{4}) from U+U collisions at √sNN = 193 GeV and Au+Au collisions at √sNN = 200 GeV for inclusive charged hadrons will be presented. The STAR Zero Degreemore »Calorimeters are used to select very central collisions. Differences were observed between the multiplicity dependence of v2{2} for most central Au+Au and U+U collisions. The multiplicity dependence of v2{2} in central collisions were compared to Monte Carlo Glauber model predictions and it was seen that this model cannot explain the present results. (auth)« less

  5. Theory of High Frequency Rectification by Silicon Crystals

    DOE R&D Accomplishments [OSTI]

    Bethe, H. A.

    1942-10-29

    The excellent performance of British "red dot" crystals is explained as due to the knife edge contact against a polished surface. High frequency rectification depends critically on the capacity of the rectifying boundary layer of the crystal, C. For high conversion efficiency, the product of this capacity and of the "forward" (bulk) resistance R {sub b} of the crystal must be small. For a knife edge, this product depends primarily on the breadth of the knife edge and very little upon its length. The contact can therefore have a rather large area which prevents burn-out. For a wavelength of 10 cm. the computations show that the breadth of the knife edge should be less than about 10 {sup -3} cm. For a point contact the radius must be less than 1.5 x 10 {sup -3} cm. and the resulting small area is conducive to burn-out. The effect of "tapping" is probably to reduce the area of contact. (auth)

  6. Azimuthal anisotropy in U+U collisions at STAR

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

    Wang, Hui; Sorensen, Paul

    2014-10-06

    The azimuthal anisotropy of particle production is commonly used in high-energy nuclear collisions to study the early evolution of the expanding system. The prolate shape of uranium nuclei makes it possible to study how the geometry of the colliding nuclei affects final state anisotropies. It also provides a unique opportunity to understand how entropy is produced in heavy ion collisions. In this paper, the two- and four- particle cumulant v2 (v2{2} and v2{4}) from U+U collisions at √sNN = 193 GeV and Au+Au collisions at √sNN = 200 GeV for inclusive charged hadrons will be presented. The STAR Zero Degreemore » Calorimeters are used to select very central collisions. Differences were observed between the multiplicity dependence of v2{2} for most central Au+Au and U+U collisions. The multiplicity dependence of v2{2} in central collisions were compared to Monte Carlo Glauber model predictions and it was seen that this model cannot explain the present results. (auth)« less

  7. Progress in the Use of Isotopes: The Atomic Triad - Reactors, Radioisotopes and Radiation

    DOE R&D Accomplishments [OSTI]

    Libby, W. F.

    1958-08-04

    Recent years have seen a substantial growth in the use of isotopes in medicine, agriculture, and industry: up to the minute information on the production and use of isotopes in the U.S. is presented. The application of radioisotopes to industrial processes and manufacturing operations has expanded more rapidly than any one except its most ardent advocates expected. New uses and new users are numerous. The adoption by industry of low level counting techniques which make possible the use of carbon-14 and tritium in the control of industrial processes and in certain exploratory and research problems is perhaps most promising of current developments. The latest information on savings to industry will be presented. The medical application of isotopes has continued to develop at a rapid pace. The current trend appears to be in the direction of improvements in technique and the substitution of more effective isotopes for those presently in use. Potential and actual benefits accruing from the use of isotopes in agriculture are reviewed. The various methods of production of radioisotopes are discussed. Not only the present methods but also interesting new possibilities are covered. Although isotopes are but one of the many peaceful uses of the atom, it is the first to pay its way. (auth)

  8. Azimuthal anisotropy in U+U collisions at STAR

    SciTech Connect (OSTI)

    Wang, Hui; Sorensen, Paul

    2014-10-06

    The azimuthal anisotropy of particle production is commonly used in high-energy nuclear collisions to study the early evolution of the expanding system. The prolate shape of uranium nuclei makes it possible to study how the geometry of the colliding nuclei affects final state anisotropies. It also provides a unique opportunity to understand how entropy is produced in heavy ion collisions. In this paper, the two- and four- particle cumulant v2 (v2{2} and v2{4}) from U+U collisions at √sNN = 193 GeV and Au+Au collisions at √sNN = 200 GeV for inclusive charged hadrons will be presented. The STAR Zero Degree Calorimeters are used to select very central collisions. Differences were observed between the multiplicity dependence of v2{2} for most central Au+Au and U+U collisions. The multiplicity dependence of v2{2} in central collisions were compared to Monte Carlo Glauber model predictions and it was seen that this model cannot explain the present results. (auth)

  9. Experimental Evaluation of Actinide Transport in a Fractured Granodiorite

    SciTech Connect (OSTI)

    Dittrich, Timothy M.; Reimus, Paul W.

    2015-03-16

    The objective of this study was to demonstrate and evaluate new experimental methods for quantifying the potential for actinide transport in deep fractured crystalline rock formations. We selected a fractured granodiorite at the Grimsel Test Site (GTS) in Switzerland as a model system because field experiments have already been conducted with uranium and additional field experiments using other actinides are planned at the site. Thus, working on this system provides a unique opportunity to compare lab experiment results with fieldscale observations. Rock cores drilled from the GTS were shipped to Los Alamos National Laboratory, characterized by x-ray diffraction and microscopy, and used in batch sorption and column breakthrough experiments. Solutions with pH 6.8 and 8.8 were tested. Solutions were switched to radionuclide-free synthetic Grimsel groundwater after near-steady actinide/colloid breakthrough occurred in column experiments. We are currently evaluating actinide adsorption/desorption rates as a function of water chemistry (initial focus on pH), with future testing planned to evaluate the influence of carbonate concentrations, flow rates, and mineralogy in solutions and suspensions with bentonite colloids. (auth)

  10. PRECISION TIME-DELAY GENERATOR

    DOE Patents [OSTI]

    Carr, B.J.; Peckham, V.D.

    1959-06-16

    A precision time-delay generator circuit with low jitter is described. The first thyratron has a series resonant circuit and a diode which is connected to the second thyratron. The first thyratron is triggered at the begin-ning of a time delay and a capacitor is discharged through the first thyratron and the diode, thereby, triggering the second thyratron. (T.R.H.) l6l9O The instrument described can measure pressures between sea level and 300,000 ft. The pressure- sensing transducer of the instrument is a small cylindrical tube with a thin foil of titanium-tritium fastened around the inside of the tube. Output is a digital signal which can be used for storage or telemetering more conveniently than an analog signal. (W.D.M.) l6l9l An experimental study was made on rolling contacts in the temperature range of 550 to 1000 deg F. Variables such as material composition, hardness, and operating conditions were investigated in a rolling test stand. Ball bearing tests were run to determine the effect of design parameters, bearing materials, lubricants, and operating conditions. (auth)

  11. Theoretical Estimate of Maximum Possible Nuclear Explosion

    DOE R&D Accomplishments [OSTI]

    Bethe, H. A.

    1950-01-31

    The maximum nuclear accident which could occur in a Na-cooled, Be moderated, Pu and power producing reactor is estimated theoretically. (T.R.H.) 2O82 Results of nuclear calculations for a variety of compositions of fast, heterogeneous, sodium-cooled, U-235-fueled, plutonium- and power-producing reactors are reported. Core compositions typical of plate-, pin-, or wire-type fuel elements and with uranium as metal, alloy, and oxide were considered. These compositions included atom ratios in the following range: U-23B to U-235 from 2 to 8; sodium to U-235 from 1.5 to 12; iron to U-235 from 5 to 18; and vanadium to U-235 from 11 to 33. Calculations were performed to determine the effect of lead and iron reflectors between the core and blanket. Both natural and depleted uranium were evaluated as the blanket fertile material. Reactors were compared on a basis of conversion ratio, specific power, and the product of both. The calculated results are in general agreement with the experimental results from fast reactor assemblies. An analysis of the effect of new cross-section values as they became available is included. (auth)

  12. Operation of a solid oxide fuel cell on biodiesel with a partial oxidation reformer

    SciTech Connect (OSTI)

    Siefert, N, Shekhawat, D.; Gemmen, R.; Berry, D.

    2010-01-01

    The National Energy Technology Laboratory’s Office of Research & Development (NETL/ORD) has successfully demonstrated the operation of a solid oxide fuel cell (SOFC) using reformed biodiesel. The biodiesel for the project was produced and characterized by West Virginia State University (WVSU). This project had two main aspects: 1) demonstrate a catalyst formulation on monolith for biodiesel fuel reforming; and 2) establish SOFC stack test stand capabilities. Both aspects have been completed successfully. For the first aspect, in–house patented catalyst specifications were developed, fabricated and tested. Parametric reforming studies of biofuels provided data on fuel composition, catalyst degradation, syngas composition, and operating parameters required for successful reforming and integration with the SOFC test stand. For the second aspect, a stack test fixture (STF) for standardized testing, developed by Pacific Northwest National Laboratory (PNNL) and Lawrence Berkeley National Laboratory (LBNL) for the Solid Energy Conversion Alliance (SECA) Program, was engineered and constructed at NETL. To facilitate the demonstration of the STF, NETL employed H.C. Starck Ceramics GmbH & Co. (Germany) anode supported solid oxide cells. In addition, anode supported cells, SS441 end plates, and cell frames were transferred from PNNL to NETL. The stack assembly and conditioning procedures, including stack welding and sealing, contact paste application, binder burn-out, seal-setting, hot standby, and other stack assembly and conditioning methods were transferred to NETL. In the future, fuel cell stacks provided by SECA or other developers could be tested at the STF to validate SOFC performance on various fuels. The STF operated on hydrogen for over 1000 hrs before switching over to reformed biodiesel for 100 hrs of operation. Combining these first two aspects led to demonstrating the biodiesel syngas in the STF. A reformer was built and used to convert 0.5 ml/min of

  13. Clouds, Precipitation, and Marine Boundary Layer Structure during the MAGIC Field Campaign

    SciTech Connect (OSTI)

    Zhou, Xiaoli; Kollias, Pavlos; Lewis, Ernie R.

    2015-03-01

    The recent ship-based MAGIC (Marine ARM GCSS Pacific Cross-Section Intercomparison (GPCI) Investigation of Clouds) field campaign with the marine-capable Second ARM Mobile Facility (AMF2) deployed on the Horizon Lines cargo container M/V Spirit provided nearly 200 days of intraseasonal high-resolution observations of clouds, precipitation, and marine boundary layer (MBL) structure on multiple legs between Los Angeles, California, and Honolulu, Hawaii. During the deployment, MBL clouds exhibited a much higher frequency of occurrence than other cloud types and occurred more often in the warm season than in the cold season. MBL clouds demonstrated a propensity to produce precipitation, which often evaporated before reaching the ocean surface. The formation of stratocumulus is strongly correlated to a shallow MBL with a strong inversion and a weak transition, while cumulus formation is associated with a much weaker inversion and stronger transition. The estimated inversion strength is shown to depend seasonally on the potential temperature at 700 hPa. The location of the commencement of systematic MBL decoupling always occurred eastward of the locations of cloud breakup, and the systematic decoupling showed a strong moisture stratification. The entrainment of the dry warm air above the inversion appears to be the dominant factor triggering the systematic decoupling, while surface latent heat flux, precipitation, and diurnal circulation did not play major roles. MBL clouds broke up over a short spatial region due to the changes in the synoptic conditions, implying that in real atmospheric conditions the MBL clouds do not have enough time to evolve as in the idealized models. (auth)

  14. Measurement of K0S and K*0 in p+p, d+Au, and Cu+Cu collisions at sqrt SNN = 200 GeV

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

    Adare, A.; Aidala, C.

    2014-11-01

    The PHENIX experiment at the Relativistic Heavy Ion Collider has performed a systematic study of K0S and K*0 meson production at midrapidity in p+p, d+Au, and Cu+Cu collisions at sqrt SNN = 200 GeV. The K0S and K*0 mesons are reconstructed via their K0S and π0(→γγ)π0 (→γγ) and K*0 → K ±#25;π± decay modes, respectively. The measured transverse-momentum spectra are used to determine the nuclear modification factor of K0S and K*0 mesons in d+Au and Cu+Cu collisions at different centralities. In the d+Au collisions, the nuclear modification factor of K0S and K*0 mesons is almost constant as a function ofmore »transverse momentum and is consistent with unity showing that cold-nuclear-matter effects do not play a significant role in the measured kinematic range. In Cu+Cu collisions, within the uncertainties no nuclear modification is registered in peripheral collisions. In central collisions, both mesons show suppression relative to the expectations from the p+p yield scaled by the number of binary nucleon-nucleon collisions in the Cu+Cu system. In the pT range 2–5 GeV/c, the strange mesons ( K0S, K*0) similarly to the #30;Φ meson with hidden strangeness, show an intermediate suppression between the more suppressed light quark mesons (π0) and the nonsuppressed baryons (p, p-bar). At higher transverse momentum, pT > 5 GeV/c, production of all particles is similarly suppressed by a factor of ≈2. (auth)« less

  15. The American Gas Centrifuge Past, Present, and Future

    SciTech Connect (OSTI)

    Waters, Dean

    2004-09-15

    The art of gas centrifugation was born in 1935 at the University of Virginia when Dr. Jesse Beams demonstrated experimentally the separation of chlorine isotopes using an ultra-high speed centrifuge. Dr. Beams experiment initiated work that created a rich history of scientific and engineering accomplishment in the United States in the art of isotope separation and even large scale biological separation by centrifugation. The early history of the gas centrifuge development was captured in a lecture and documented by Dr. Jesse Beams in 1975. Much of Dr. Beams lecture material is used in this paper up to the year 1960. Following work by Dr. Gernot Zippe at the University of Virginia between 1958 and 1960, the US government embarked on a centrifuge development program that ultimately led to the start of construction of the Gas Centrifuge Enrichment Plant in Piketon Ohio in the late 1970s. The government program was abandoned in 1985 after investing in the construction of two of six planned process buildings, a complete supply chain for process and centrifuge parts, and the successful manufacture and brief operation of an initial complement of production machines that would have met 15 percent of the planned capacity of the constructed process buildings. A declining market for enriched uranium, a glut of uranium enrichment capacity worldwide, and the promise of a new laser based separation process factored in the decision to stop the government program. By the late 1990s it had become evident that gas centrifugation held the best promise to produce enriched uranium at low cost. In1999, the United States Enrichment Corporation undertook an initiative to revive the best of the American centrifuge technology that had been abandoned fourteen years earlier. This is an exciting story and one that when complete will enable the United States to maintain its domestic supply and to be highly competitive in the world market for this important energy commodity. (auth)

  16. Measurement of K0S and K*0 in p+p, d+Au, and Cu+Cu collisions at sqrt SNN = 200 GeV

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

    Adare, A.; Aidala, C.

    2014-11-01

    The PHENIX experiment at the Relativistic Heavy Ion Collider has performed a systematic study of K0S and K*0 meson production at midrapidity in p+p, d+Au, and Cu+Cu collisions at sqrt SNN = 200 GeV. The K0S and K*0 mesons are reconstructed via their K0S and π0(→γγ)π0 (→γγ) and K*0 → K ± π± decay modes, respectively. The measured transverse-momentum spectra are used to determine the nuclear modification factor of K0S and K*0 mesons in d+Au and Cu+Cu collisions at different centralities. In the d+Au collisions, the nuclear modification factor of K0S and K*0 mesons is almost constant as a functionmore » of transverse momentum and is consistent with unity showing that cold-nuclear-matter effects do not play a significant role in the measured kinematic range. In Cu+Cu collisions, within the uncertainties no nuclear modification is registered in peripheral collisions. In central collisions, both mesons show suppression relative to the expectations from the p+p yield scaled by the number of binary nucleon-nucleon collisions in the Cu+Cu system. In the pT range 2–5 GeV/c, the strange mesons ( K0S, K*0) similarly to the Φ meson with hidden strangeness, show an intermediate suppression between the more suppressed light quark mesons (π0) and the nonsuppressed baryons (p, p-bar). At higher transverse momentum, pT > 5 GeV/c, production of all particles is similarly suppressed by a factor of ≈2. (auth)« less

  17. Clouds, Precipitation, and Marine Boundary Layer Structure during the MAGIC Field Campaign

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

    Zhou, Xiaoli; Kollias, Pavlos; Lewis, Ernie R.

    2015-03-01

    The recent ship-based MAGIC (Marine ARM GCSS Pacific Cross-Section Intercomparison (GPCI) Investigation of Clouds) field campaign with the marine-capable Second ARM Mobile Facility (AMF2) deployed on the Horizon Lines cargo container M/V Spirit provided nearly 200 days of intraseasonal high-resolution observations of clouds, precipitation, and marine boundary layer (MBL) structure on multiple legs between Los Angeles, California, and Honolulu, Hawaii. During the deployment, MBL clouds exhibited a much higher frequency of occurrence than other cloud types and occurred more often in the warm season than in the cold season. MBL clouds demonstrated a propensity to produce precipitation, which often evaporatedmore » before reaching the ocean surface. The formation of stratocumulus is strongly correlated to a shallow MBL with a strong inversion and a weak transition, while cumulus formation is associated with a much weaker inversion and stronger transition. The estimated inversion strength is shown to depend seasonally on the potential temperature at 700 hPa. The location of the commencement of systematic MBL decoupling always occurred eastward of the locations of cloud breakup, and the systematic decoupling showed a strong moisture stratification. The entrainment of the dry warm air above the inversion appears to be the dominant factor triggering the systematic decoupling, while surface latent heat flux, precipitation, and diurnal circulation did not play major roles. MBL clouds broke up over a short spatial region due to the changes in the synoptic conditions, implying that in real atmospheric conditions the MBL clouds do not have enough time to evolve as in the idealized models. (auth)« less

  18. Correlation between annealing and irradiation behavior of dispersion fuels: Final report. [U/sub 3/Si/sub x/, U/sub 6/Mn, U/sub 3/SiAl, U/sub 6/Fe, U/sub 75/Ga/sub 10/Si/sub 15/, U/sub 75/Ga/sub 15/Ge/sub 10/

    SciTech Connect (OSTI)

    Wiencek, T.C.; Domagala, R.F.

    1987-06-01

    Studying the effects of annealing of scaled-down dispersion fuel plates is an important part of the data base for fuel performance. One of the most critical aspects of fuel performance is the stability of a fuel/matrix dispersion which is usually measured by volumetric changes of the fuel zone. A correlation has been proposed that fission-induced amorphization is responsible for the instability of the fuel and that such transformations can be predicted by the thermodynamic properties of the fuel. It is proposed that annealing studies may be used as a screening test for new fuels for which no thermodynamic properties have been measured and/or no irradiation data are available. Estimations of irradiation performance could be obtained faster and without the expense of irradiating the fuels under investigation. Miniature fuel plates were fabricated by standard procedures and annealed at 400/sup 0/C for up to 1981 hrs in a resistance wound furnace. At periodic intervals the plates were removed and the fuel zone volumes were calculated based on immersion density measurement data. 7 refs., 1 tab.

  19. Catalytic Growth of Macroscopic Carbon Nanofibers Bodies with Activated Carbon

    SciTech Connect (OSTI)

    Abdullah, N.; Muhammad, I. S.; Hamid, S. B. Abd.; Rinaldi, A.; Su, D. S.; Schlogl, R.

    2009-06-01

    Carbon-carbon composite of activated carbon and carbon nanofibers have been synthesized by growing Carbon nanofiber (CNF) on Palm shell-based Activated carbon (AC) with Ni catalyst. The composites are in an agglomerated shape due to the entanglement of the defective CNF between the AC particles forming a macroscopic body. The macroscopic size will allow the composite to be used as a stabile catalyst support and liquid adsorbent. The preparation of CNT/AC nanocarbon was initiated by pre-treating the activated carbon with nitric acid, followed by impregnation of 1 wt% loading of nickel (II) nitrate solutions in acetone. The catalyst precursor was calcined and reduced at 300 deg. C for an hour in each step. The catalytic growth of nanocarbon in C{sub 2}H{sub 4}/H{sub 2} was carried out at temperature of 550 deg. C for 2 hrs with different rotating angle in the fluidization system. SEM and N{sub 2} isotherms show the level of agglomeration which is a function of growth density and fluidization of the system. The effect of fluidization by rotating the reactor during growth with different speed give a significant impact on the agglomeration of the final CNF/AC composite and thus the amount of CNFs produced. The macrostructure body produced in this work of CNF/AC composite will have advantages in the adsorbent and catalyst support application, due to the mechanical and chemical properties of the material.

  20. Modelling of ICRF heating in DEMO with special emphasis on bulk ion heating

    SciTech Connect (OSTI)

    Gallart, Dani; Mantsinen, Mervi; Kazakov, Yevgen

    2015-12-10

    Ion cyclotron resonance frequency (ICRF) heating is one of the auxiliary heating schemes presently envisaged for ITER and DEMO. In this paper we analyse the potential of ICRF waves to heat the fuel ions in DEMO. Our analysis is carried out for the DEMO1 Reference Scenario from October 2013 (B = 6.8 T, I = 18.6 MA, R = 9.25 m, a = 2.64 m) optimized for a maximum pulse length of 2.3 hrs using the ICRF modelling codes PION and TORIC. We focus on second harmonic heating of tritium and fundamental minority heating of {sup 3}He ions (with a few percent of {sup 3}He) in a 50%:50% D-T plasma. The dependence of the ICRF characteristics and the ICRF-accelerated ions on the ICRF and plasma parameters is investigated, giving special attention to the DEMO design point at a core plasma temperature of 30 keV and an electron density of 1.2·10{sup 20} m{sup −3}.

  1. Food consumption and digestion time estimation of spotted scat, Scatophagus argus, using X-radiography technique

    SciTech Connect (OSTI)

    Hashim, Marina; Abidin, Diana Atiqah Zainal; Das, Simon K.; Ghaffar, Mazlan Abd.

    2014-09-03

    The present study was conducted to investigate the food consumption pattern and gastric emptying time using x-radiography technique in scats fish, Scatophagus argus feeding to satiation in laboratory conditions. Prior to feeding experiment, fish of various sizes were examined their stomach volume, using freshly prepared stomachs ligatured at the tips of the burret, where the maximum amount of distilled water collected in the stomach were measured (ml). Stomach volume is correlated with maximum food intake (S{sub max}) and it can estimate the maximum stomach distension by allometric model i.e volume=0.0000089W{sup 2.93}. Gastric emptying time was estimated using a qualitative X-radiography technique, where the fish of various sizes were fed to satiation at different time since feeding. All the experimental fish was feed into satiation using radio-opaque barium sulphate (BaSO{sub 4}) paste injected in the wet shrimp in proportion to the body weight. The BaSO{sub 4} was found suitable to track the movement of feed/prey in the stomach over time and gastric emptying time of scats fish can be estimated. The results of qualitative X-Radiography observation of gastric motility, showed the fish (200 gm) that fed to maximum satiation meal (circa 11 gm) completely emptied their stomach within 30 - 36 hrs. The results of the present study will provide the first baseline information on the stomach volume, gastric emptying of scats fish in captivity.

  2. CoolCalc: A Long-Haul Truck Thermal Load Estimation Tool: Preprint

    SciTech Connect (OSTI)

    Lustbader, J. A.; Rugh, J. P.; Rister, B. R.; Venson, T. S.

    2011-05-01

    In the United States, intercity long-haul trucks idle approximately 1,800 hrs annually for sleeper cab hotel loads, consuming 838 million gallons of diesel fuel per year. The objective of the CoolCab project is to work closely with industry to design efficient thermal management systems for long-haul trucks that keep the cab comfortable with minimized engine idling. Truck engine idling is primarily done to heat or cool the cab/sleeper, keep the fuel warm in cold weather, and keep the engine warm for cold temperature startup. Reducing the thermal load on the cab/sleeper will decrease air conditioning system requirements, improve efficiency, and help reduce fuel use. CoolCalc is an easy-to-use, simplified, physics-based HVAC load estimation tool that requires no meshing, has flexible geometry, excludes unnecessary detail, and is less time-intensive than more detailed computer-aided engineering modeling approaches. It is intended for rapid trade-off studies, technology impact estimation, and preliminary HVAC sizing design and to complement more detailed and expensive CAE tools by exploring and identifying regions of interest in the design space. This paper describes the CoolCalc tool, provides outdoor long-haul truck thermal testing results, shows validation using these test results, and discusses future applications of the tool.

  3. Impact of corrosion test container material in molten fluorides

    SciTech Connect (OSTI)

    Olson, Luke C.; Fuentes, Roderick E.; Martinez-Rodriguez, Michael J.; Ambrosek, James W.; Sridharan, Kumar; Anderson, Mark H.; Garcia-Diaz, Brenda L.; Gray, Joshua; Allen, Todd R.

    2015-10-15

    The effects of crucible material choice on alloy corrosion rates in immersion tests in molten LiF–NaF–KF (46.5–11.5-42 mol. %) salt held at 850 °C for 500 hrs are described. Four crucible materials were studied. Molten salt exposures of Incoloy-800H in graphite, Ni, Incoloy-800H, and pyrolytic boron nitride (PyBN) crucibles all led to weight-loss in the Incoloy-800H coupons. Alloy weight loss was ~30 times higher in the graphite and Ni crucibles in comparison to the Incoloy-800H and PyBN crucibles. It is hypothesized galvanic coupling between the alloy coupons and crucible materials contributed to the higher corrosion rates. Alloy salt immersion in graphite and Ni crucibles had similar weight-loss hypothesized to occur due to the rate limiting out diffusion of Cr in the alloys to the surface where it reacts with and dissolves into the molten salt, followed by the reduction of Cr from solution at the molten salt and graphite/Ni interfaces. As a result, both the graphite and the Ni crucibles provided sinks for the Cr, in the formation of a Ni–Cr alloy in the case of the Ni crucible, and Cr carbide in the case of the graphite crucible.

  4. Alliance for Sequestration Training, Outreach, Research & Education

    SciTech Connect (OSTI)

    Olson, Hilary

    2013-09-01

    The Sequestration Training, Outreach, Research and Education (STORE) Alliance at The University of Texas at Austin completed its activity under Department of Energy Funding (DE- FE0002254) on September 1, 2013. The program began as a partnership between the Institute for Geophysics, the Bureau of Economic Geology and the Petroleum and Geosystems Engineering Department at UT. The initial vision of the program was to promote better understanding of CO2 utilization and storage science and engineering technology through programs and opportunities centered on training, outreach, research and technology transfer, and education. With over 8,000 hrs of formal training and education (and almost 4,500 of those hours awarded as continuing education credits) to almost 1,100 people, STORE programs and activities have provided benefits to the Carbon Storage Program of the Department of Energy by helping to build a skilled workforce for the future CCS and larger energy industry, and fostering scientific public literacy needed to continue the U.S. leadership position in climate change mitigation and energy technologies and application. Now in sustaining mode, the program is housed at the Center for Petroleum and Geosystems Engineering, and benefits from partnerships with the Gulf Coast Carbon Center, TOPCORP and other programs at the university receiving industry funding.

  5. Impact of corrosion test container material in molten fluorides

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

    Olson, Luke C.; Fuentes, Roderick E.; Martinez-Rodriguez, Michael J.; Ambrosek, James W.; Sridharan, Kumar; Anderson, Mark H.; Garcia-Diaz, Brenda L.; Gray, Joshua; Allen, Todd R.

    2015-10-15

    The effects of crucible material choice on alloy corrosion rates in immersion tests in molten LiF–NaF–KF (46.5–11.5-42 mol. %) salt held at 850 °C for 500 hrs are described. Four crucible materials were studied. Molten salt exposures of Incoloy-800H in graphite, Ni, Incoloy-800H, and pyrolytic boron nitride (PyBN) crucibles all led to weight-loss in the Incoloy-800H coupons. Alloy weight loss was ~30 times higher in the graphite and Ni crucibles in comparison to the Incoloy-800H and PyBN crucibles. It is hypothesized galvanic coupling between the alloy coupons and crucible materials contributed to the higher corrosion rates. Alloy salt immersion inmore » graphite and Ni crucibles had similar weight-loss hypothesized to occur due to the rate limiting out diffusion of Cr in the alloys to the surface where it reacts with and dissolves into the molten salt, followed by the reduction of Cr from solution at the molten salt and graphite/Ni interfaces. As a result, both the graphite and the Ni crucibles provided sinks for the Cr, in the formation of a Ni–Cr alloy in the case of the Ni crucible, and Cr carbide in the case of the graphite crucible.« less

  6. Single phase synthesis and room temperature neutron diffraction studies on multiferroic PbFe{sub 0.5}Nb{sub 0.5}O{sub 3}

    SciTech Connect (OSTI)

    Matteppanavar, Shidaling; Angadi, Basavaraj; Rayaprol, Sudhindra

    2013-02-05

    The lead-iron-niobate, (PbFe{sub 0.5}Nb{sub 0.5}O{sub 3} or PFN) was synthesized by low temperature sintering Single Step / Solid State Reaction Method. The 700 Degree-Sign C/2 hrs. calcined powder was sintered at 1050 Degree-Sign C/1 hr. The sintered pellets were characterized through X-Ray Diffraction and Neutron Diffraction at room temperature. It is found from the XRD pattern that the materials is in single phase with no traces of pyrochlore phase. It was also confirmed from the neutron diffraction pattern, the structure of PFN to be monoclinic, space group Cm. Structural studies has been carried out by refining the obtained neutron diffraction data by Rietveld refinement method using Fullprof program. The neutron diffraction pattern at 300 K (room temperature) was selected to refine the structure. The lattice parameters obtained are; a = 5.6709 A, b = 5.6732 A, c = 4.0136 A, and {alpha}= 90, {beta}= 89.881, {gamma}= 90. The P-E measurements showed hysteretic behavior with high remnant polarization.

  7. Residential Cooking Behavior in the United States: Data Collected from a Web-Based Survey

    SciTech Connect (OSTI)

    Huang, Y. W; Andrew, E. E; Hu, T. C; Singer, B. C; Ding, L.; Logue, J. M

    2014-08-01

    Cooking has a significant impact on indoor air quality. When cooking occurs, how foods are cooked, and the types of food that are cooked have all been shown to impact the rate at which occupants are exposed to pollutants. Home occupancy characteristics impact how concentrations in the home translate into exposures for the occupants. With the intent of expanding our understanding of cooking behavior in the U.S., we developed and advertised an online survey to collect household cooking behavior for the 24 hrs prior to taking the survey. The survey questions were designed to address gaps in knowledge needed to predict the impact of cooking on indoor concentrations of PM2.5 and other pollutants. The survey included the following questions: 1) which meals households ate at home; 2) number of household members at home during cooking; 3) the type of oil used for cooking; 4) the type of foods cooked at each meal; 5) the type of cooking devices used; and 6) the methods selected for food preparation. We also collected information on household characteristics such as their location (zip code), ethnicity, and ages of family members. We analyzed the variability in home cooking characteristics for households in different climate zones and with four different types of family compositions: 1 senior living alone, 1 adult living alone, 2 or more adults/seniors, and families with children. We used simple statistical tests to determine if the probability of certain cooking behaviors differed between these subgroups.

  8. Treatment of biomass gasification wastewaters using reverse osmosis

    SciTech Connect (OSTI)

    Petty, S.E.; Eliason, S.D.; Laegreid, M.M.

    1981-09-01

    Reverse osmosis (RO) was evaluated as a treatment technology for the removal of organics from biomass gasification wastewaters (BGW) generated from an experimental biomass gasifier at Texas Tech University. Wastewaters were characteristically high in chemical oxygen demand (COD) with initial values ranging from 32,000 to 68,000 mg/1. Since RO is normally considered a complementary treatment technology, wastewaters were pretreated by biological or wet air oxidation (WAO) processes. One set of experiments were run using untreated wastewaters to compare membrane performance with those experiments using pretreated wastewaters. Experiments were run for 8 to 10 hrs using UOP's TFC-85 membrane operating at 700 psig and 18 to 20/sup 0/C. This membrane is similar to the NS-100, a membrane known for being effective in the separation of organics from solution. Separation of organics from solution was determined by COD removal. Removal percentages for biologically pretreated wastewaters averaged 98% except for one group of runs averaging 69% removal. This exception was probably due to the presence of milk solids in the feed. Use of RO on WAO pretreated wastewaters and unpretreated feeds resulted in 90% COD removal. Membrane degradation was observed when using full-strength and WAO pretreated feeds, but not when using feeds that had undergone biological pretreatment. Color removal was computed for the majority of experiments completed. Overall, 99 to 100% of the total color was removed from BGW feeds, values which coincide with those reported in the literature for other wastewaters.

  9. New system pinpoints leaks in ethylene pipeline

    SciTech Connect (OSTI)

    Hamande, A.; Condacse, V.; Modisette, J.

    1995-04-01

    A model-based leak detection, PLDS, developed by Modisette Associates, Inc., Houston has been operating on the Solvay et Cie ethylene pipeline since 1989. The 6-in. pipeline extends from Antwerp to Jemeppe sur Sambre, a distance of 73.5 miles and is buried at a depth of 3 ft. with no insulation. Except for outlets to flares, located every 6 miles for test purposes, there are no injections or deliveries along the pipeline. Also, there are block valves, which are normally open, at each flare location. This paper reviews the design and testing procedures used to determine the system performance. These tests showed that the leak system was fully operational and no false alarms were caused by abrupt changes in inlet/outlet flows of the pipeline. It was confirmed that leaks larger than 2 tonnes/hr. (40 bbl/hr) are quickly detected and accurately located. Also, maximum leak detection sensitivity is 1 tonne/hr. (20 bbl/hr) with a detection time of one hour. Significant operational, configuration, and programming issues also were found during the testing program. Data showed that temperature simulations needed re-examining for improvement since accurate temperature measurements are important. This is especially true for ethylene since its density depends largely on temperature. Another finding showed the averaging period of 4 hrs. was too long and a 1 to 2 hr. interval was better.

  10. Lead-induced stress corrosion cracking of Alloy 600 and 690 in high temperature water

    SciTech Connect (OSTI)

    Sakai, T.; Senjuh, T.; Aoki, K.; Shigemitsu, T.; Kishi, Y.

    1992-12-31

    Lead is one of the potential contributing impurities to the degradation of PWR steam generator tubing. Recent laboratory testing has shown that lead is a corrosive material for Alloy 600 steam generator tubing. However, it is still unknown how lead influences the corrosion of steam generator tubing, including the effect of lead concentration, solution pH, stress level and material characteristics. In this study, two kinds of experiments were performed. One was to investigate the thin film characteristic and selectively dissolved base metal elements of Alloy 600MA in high temperature solutions of different lead concentrations and pH. The other investigated the dependency of degradation of Alloy 600MA and Alloy 690TT on lead concentration and stress level in mild acidic environment, at 340{degrees}C for 2500 hrs. It was firstly demonstrated that lead-enhanced selective dissolution of nickel from alloy base metal, as a result of electrochemical reaction between lead and nickel, might cause the initiation and propagation of corrosion. Secondly, we showed that Alloy 690TT, generally very corrosion resistant material, also suffered from Pb-induced corrosion. The difference of the lead-induced stress corrosion morphology of Alloy 600MA and Alloy 690TT was also clarified.

  11. High Precision Measurement of the Proton Elastic Form Factor Ratio at Low Q2

    SciTech Connect (OSTI)

    Xiaohui Zhan

    2010-01-31

    Experiment E08-007 measured the proton elastic form factor ratio ?pGE/GM in the range of Q2 = 0.3?0.7(GeV/c)2 by recoil polarimetry. Data were taken in 2008 at the Thomas Jefferson National Accelerator Facility in Virginia, USA. A 1.2 GeV polarized electron beam was scattered off a cryogenic hydrogen target. The recoil proton was detected in the left HRS in coincidence with the elasticly scattered electrons tagged by the BigBite spectrometer. The proton polarization was measured by the focal plane polarimeter (FPP). In this low Q2 region, previous measurement from Jefferson Lab Hall A (LEDEX) along with various fits and calculations indicate substantial deviations of the ratio from unity. For this new measurement, the proposed statistical uncertainty (< 1%) was achieved. These new results are a few percent lower than expected from previous world data and fits, which indicate a smaller GEp at this region. Beyond the intrinsic interest in nucleon structure, the new results also have implications in determining the proton Zemach radius and the strangeness form factors from parity violation experiments.

  12. Photo annealing effect on p-doped inverted organic solar cell

    SciTech Connect (OSTI)

    Lafalce, Evan; Toglia, Patrick; Lewis, Jason E.; Jiang, Xiaomei

    2014-06-28

    We report the transient positive photo annealing effect in which over 600% boost of power conversion efficiency was observed in inverted organic photovoltaic devices (OPV) made from P3HT/PCBM by spray method, after 2?hrs of constant solar AM 1.5 irradiation at low temperature. This is opposite to usual photodegradation of OPV, and cannot be explained by thermal activation alone since the mere temperature effect could only account for 30% of the enhancement. We have investigated the temperature dependence, cell geometry, oxygen influence, and conclude that, for p-doped active layer at room temperature, the predominant mechanism is photo-desorption of O{sub 2}, which eliminates electron traps and reduces space charge screening. As temperature decreases, thermal activation and deep trap-state filling start to show noticeable effect on the enhancement of photocurrent at intermediate low temperature (T?=?125?K). At very low temperature, the dominant mechanism for photo annealing is trap-filling, which significantly reduces recombination between free and trapped carriers. At all temperature, photo annealing effect depends on illumination direction from cathode or anode. We also explained the large fluctuation of photocurrent by the capture/reemit of trapped electrons from shallow electron traps of O{sub 2}{sup -} generated by photo-doping. Our study has demonstrated the dynamic process of photo-doping and photo-desorption, and shown that photo annealing in vacuum can be an efficient method to improve OPV device efficiency.

  13. Comparison of the Acceptability of Various Oil Shale Processes

    SciTech Connect (OSTI)

    Burnham, A K; McConaghy, J R

    2006-03-11

    While oil shale has the potential to provide a substantial fraction of our nation's liquid fuels for many decades, cost and environmental acceptability are significant issues to be addressed. Lawrence Livermore National Laboratory (LLNL) examined a variety of oil shale processes between the mid 1960s and the mid 1990s, starting with retorting of rubble chimneys created from nuclear explosions [1] and ending with in-situ retorting of deep, large volumes of oil shale [2]. In between, it examined modified-in-situ combustion retorting of rubble blocks created by conventional mining and blasting [3,4], in-situ retorting by radio-frequency energy [5], aboveground combustion retorting [6], and aboveground processing by hot-solids recycle (HRS) [7,8]. This paper reviews various types of processes in both generic and specific forms and outlines some of the tradeoffs for large-scale development activities. Particular attention is given to hot-recycled-solids processes that maximize yield and minimize oil shale residence time during processing and true in-situ processes that generate oil over several years that is more similar to natural petroleum.

  14. ISDAC - NRC Convair-580 Flight Hours Date Flight From To Start

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

    - NRC Convair-580 Flight Hours Date Flight From To Start End hrs 03/21/08 F01-Test-01 Ottawa Ottawa 16:15Z 18:15Z 2.2 03/22/08 F02-Test-02 Ottawa Ottawa 12:45Z 15:50Z 3.3 03/28/08 F03-Transit-01 Ottawa, ON Kenora, ON 12:23Z 15:44Z 3.6 03/28/08 F04-Transit-02 Kenora, ON Calgary, AB 16:30Z 19:36Z 3.3 03/28/08 F05-Transit-03 Calgary, AB Comox, BC 20:24Z 22:17Z 2.1 03/29/08 F06-Transit-04 Comox, BC Whitehorse, YK 17:43Z 20:50Z 3.3 03/29/08 F07-Transit-05 Whitehorse, YK Fairbanks 21:51Z 23:42Z 2.1

  15. Tubular solid oxide fuel cell prospect

    SciTech Connect (OSTI)

    Veyo, S.E.

    1996-05-01

    Driven by technological achievement and rational projection of commercial product cost, expectations for tubular SOFC commercialization are improving. Tubular SOFCs have surpassed 7 yrs operation and have recently demonstrated remarkable toughness in thermal cycling. Customer-owned systems with 25 kW stacks utilizing air electrode supported (AES) cells continue to operate directly on natural gas without degradation after multiple thermal cycles and over 4000 hrs operation. AES cell operation at elevated pressure corroborates theoretical estimates of performance gain without evidence of deleterious effect. Commercial class AES cell of 22 mm dia and 1500 mm length, is now in production for application to 100 kW, 50% efficient (ac/LHV), atmospheric pressure systems. This same cell applied to pressurized systems in combination with conventional turbo machinery (gas turbines) can yield an efficiency approaching 70% for power plants as small as 5 MW. Total installed system cost for commercial 5 MW SOFC/CT units for distributed power generation and on-site cogeneration should approach $1000/kW. A major challenge is formation of funded projects to demonstrate at the turn of the century prototype MW class SOFC/CT combined cycle power plants and to complete the development of commercial fuel cell manufacturing processes.

  16. Recent results of an experimental study on the impact of smoke on digital I and C equipment

    SciTech Connect (OSTI)

    Tanaka, T.J.; Antonescu, C.

    1997-10-01

    A program to assess the impact of smoke on digital Instrumentation and Control (I and C) safety systems began in 1994, funded by the US Nuclear Regulatory Commission Office of Research. Digital I and C safety systems are likely replacements for today`s analog systems. The nuclear industry has little experience in qualifying digital electronics for critical systems, part of which is understanding system performance during plant fires. The results of tests evaluating the performance of digital circuits and chip technologies exposed to the various smoke and humidity conditions representative of cable fires are discussed. Tests results show that low to moderate smoke densities can cause intermittent failures of digital systems. Smoke increases leakage currents between biased contacts, leading to shorts. Chips with faster switching times, and thus higher output drive currents, are less sensitive to leakage currents and thus to smoke. Contact corrosion from acidic gases in smoke and inductance of stray capacitance are less important contributors to system upset. Transmission line coupling was increased because the smoke acted as a conductive layer between the lines. Permanent circuit damage was not obvious in the 24 hrs of circuit monitoring. Test results also show that polyurethane, parylene, and acrylic conformal coatings are more effective in protecting against smoke than epoxy or silicone. Common-sense mitigation measures are discussed. Unfortunately industry is a long way from standard tests for smoke exposure that capture the variations in smoke exposure possible in an actual fire.

  17. Max Phase Materials And Coatings For High Temperature Heat Transfer Applications

    SciTech Connect (OSTI)

    Martinez-Rodriguez, M.; Garcia-Diaz, B.; Olson, L.; Fuentes, R.; Sindelar, R.

    2015-10-19

    Molten salts have been used as heat transfer fluids in a variety of applications within proposed Gen IV nuclear designs and in advanced power system such as Concentrating Solar Power (CSP). However, operating at elevated temperatures can cause corrosion in many materials. This work developed coating technologies for MAX phase materials on Haynes-230 and characterized the corrosion of the coatings in the presence of commercial MgCl2-KCl molten salt. Cold spraying of Ti2AlC and physical vapor deposition (PVD) of Ti2AlC or Zr2AlC were tested to determine the most effective form of coating MAX phases on structural substrates. Corrosion testing at 850°C for 100 hrs showed that 3.9 μm Ti2AlC by PVD was slightly protective while 117 μm Ti2AlC by cold spray and 3.6 μm Zr2AlC by PVD were completely protective. None of the tests showed decomposition of the coating (Ti or Zr) into the salt

  18. Measurement of the deuteron elastic structure functions at large momentum transfers

    SciTech Connect (OSTI)

    Kathy McCormick

    1999-08-01

    The cross section for elastic electron-deuteron scattering has been measured using the Hall A Facility of Jefferson Laboratory. Scattered electrons and recoiling deuterons were detected in coincidence in the two 4 GeV/c High Resolution Spectrometers (HRS) of Hall A. The deuteron elastic structure functions A(Q{sup 2}) and B(Q{sup 2}) have been extracted from these data. Results for the measurement of A(Q{sup 2}) in the range of 0.7 ≤ Q{sup 2} ≤ 6.0 (GeV/c){sup 2} are reported. Results for the magnetic structure function, B(Q{sup 2}), are presented in the range of 0.7 ≤ Q{sup 2} ≤ 1.35 (GeV/c){sup 2}. The results for both structure functions are compared to predictions of meson-nucleon based models, both with and without the inclusion of meson-exchange currents. The A(Q{sup 2}) results are compared to predictions of the dimensional scaling quark model and perturbative quantum chromodynamics. The results can provide insights into the transition from meson-nucleon to quark-gluon descriptions of the nuclear two-body system.

  19. X-shaped Electro-Optic Chromophore with Remarkably Blue-Shifted Optical Absorption. Synthesis, Characterization, Linear/Nonlinear Optical Properties, Self-Assembly, and Thin Film Microstructural Characteristics

    SciTech Connect (OSTI)

    Kang,H.; Evmenenko, G.; Dutta, P.; Clays, K.; Song, K.; Marks, T.

    2006-01-01

    A novel type of 'X-shaped' two-dimensional electro-optic (EO) chromophore with extended conjugation has been synthesized and characterized. This chromophore is found to exhibit a remarkably blue-shifted optical maximum (357 nm in CH{sub 2}Cl{sub 2}) while maintaining a very large first hyperpolarizability ({beta}). Hyper-Rayleigh Scattering (HRS) measurements at 800 nm provide a {beta}{sub zzz} value of 1840 x 10{sup -30} esu. Self-assembled thin films of this chromophore were fabricated via a layer-by-layer chemisorptive siloxane-based approach. The chromophoric multilayers have been characterized by transmission optical spectroscopy, advancing contact angle measurements, synchrotron X-ray reflectivity, atomic force microscopy, and angle-dependent polarized second harmonic generation spectroscopy. The self-assembled chromophoric films exhibit a dramatically blue-shifted optical maximum (325 nm) while maintaining a large EO response ({chi}({sup 2}){sub 333} {approx} 232 pm/V at 1064 nm; r{sub 33} {approx} 45 pm/V at 1310 nm). This work demonstrates an attractive approach to developing EO materials offering improved nonlinearity-transparency trade-offs.

  20. Structural and optical properties of Sn{sub 1−x}Fe{sub x}O{sub 2} thin films prepared by flash evaporation technique

    SciTech Connect (OSTI)

    Kuppan, M. Kaleemulla, S. Rao, N. Madhusudhana Krishna, N. Sai Begam, M. Rigana

    2014-04-24

    Sn{sub 1−x}Fe{sub X}O{sub 2} (x = 0, 0.05) thin films were prepared on glass substrate using the flash evaporation technique. The samples were annealed at 773 K for 2 hrs in air atmosphere. A systematic study was carried out on the structural and optical properties of the as deposited and annealed thin films. From the X-ray diffraction analysis it was found that the Sn{sub 1−x}Fe{sub X}O{sub 2} films deposited at 623 K were amorphous in nature and the Sn{sub 1−x}Fe{sub X}O{sub 2} films annealed at 773 K exhibited the tetragonal structure of the SnO{sub 2}. The optical band gap of the SnO{sub 2} thin films was found to be as 3.17 eV whereas the optical band gap of the Sn{sub 1−x}Fe{sub X}O{sub 2} films was found to be as 3.01 eV after air annealing.

  1. Fibre optique à la maison en Pays de Gex et de Bellegarde

    ScienceCinema (OSTI)

    None

    2011-10-06

    Le Syndicat Intercommunal d’Electricité de l’Ain(SIEA) déploie un réseau FTTH (Fiber To The Home) de fibres optiques dans le département de l’Ain vers l’ensemble des habitations. Le déploiement sur la zone pilote du Pays de Gex et du Bassin Bellegardien arrive dans la phase terminale vers les habitations. Le SIEA présentera ses activités, l’état du développement du réseau, les implications d’une connexion fibre optique et les procédures d’abonnement. La présentation sera donnée en Français. -------------------------------------------------------------------------------------------------------------------------------Public conference "Optical fiber To The Home in Pays de Gex et de Bellegarde" Michel Chanel et Jean Paul Goy (SIEA) Wednesday, 19th May at 11.30 hrs., Council Chamber, CERN The ‘’ Syndicat Intercommunal d’Electricité de l’Ain’’(SIEA) is deploying an optical fiber network FTTH (Fiber To The Home) in the Ain department towards the ensemble of houses. The installation on the pilot areas of Pays de Gex and Bassin Bellegardien is arriving in the phase of connecting houses. The SIEA will show its activities, the state of the network development, the implications of an optical fiber connection and the contract procedures. The presentation will be given in French

  2. Application of Sleeper Cab Thermal Management Technologies to Reduce Idle Climate Control Loads in Long-Haul Trucks

    SciTech Connect (OSTI)

    Lustbader, J. A.; Venson, T.; Adelman, S.; Dehart, C.; Yeakel, S.; Castillo, M. S.

    2012-10-01

    Each intercity long-haul truck in the U.S. idles approximately 1,800 hrs per year, primarily for sleeper cab hotel loads. Including workday idling, over 2 billion gallons of fuel are used annually for truck idling. NREL's CoolCab project works closely with industry to design efficient thermal management systems for long-haul trucks that keep the cab comfortable with minimized engine idling and fuel use. The impact of thermal load reduction technologies on idle reduction systems were characterized by conducting thermal soak tests, overall heat transfer tests, and 10-hour rest period A/C tests. Technologies evaluated include advanced insulation packages, a solar reflective film applied to the vehicle's opaque exterior surfaces, a truck featuring both film and insulation, and a battery-powered A/C system. Opportunities were identified to reduce heating and cooling loads for long-haul truck idling by 36% and 34%, respectively, which yielded a 23% reduction in battery pack capacity of the idle-reduction system. Data were also collected for development and validation of a CoolCalc HVAC truck cab model. CoolCalc is an easy-to-use, simplified, physics-based HVAC load estimation tool that requires no meshing, has flexible geometry, excludes unnecessary detail, and is less time-intensive than more detailed computer-aided engineering modeling approaches.

  3. TECHNIQUES FOR NONDESTRUCTIVE EVALUATION OF RADIOACTIVE WASTE CAPSULE END

    Office of Scientific and Technical Information (OSTI)

    CAP WELDS. (Technical Report) | SciTech Connect TECHNIQUES FOR NONDESTRUCTIVE EVALUATION OF RADIOACTIVE WASTE CAPSULE END CAP WELDS. Citation Details In-Document Search Title: TECHNIQUES FOR NONDESTRUCTIVE EVALUATION OF RADIOACTIVE WASTE CAPSULE END CAP WELDS. Authors: Crowe, J. C. Publication Date: 1971-10-31 OSTI Identifier: 4050085 Report Number(s): BNWL-SA--3758 Resource Type: Technical Report Resource Relation: Other Information: UNCL. Orig. Receipt Date: 31-DEC-71 Research Org:

  4. Predictive Treatment Management: Incorporating a Predictive Tumor Response Model Into Robust Prospective Treatment Planning for Non-Small Cell Lung Cancer

    SciTech Connect (OSTI)

    Zhang, Pengpeng; Yorke, Ellen; Hu, Yu-Chi; Mageras, Gig; Rimner, Andreas; Deasy, Joseph O.

    2014-02-01

    Purpose: We hypothesized that a treatment planning technique that incorporates predicted lung tumor regression into optimization, predictive treatment planning (PTP), could allow dose escalation to the residual tumor while maintaining coverage of the initial target without increasing dose to surrounding organs at risk (OARs). Methods and Materials: We created a model to estimate the geometric presence of residual tumors after radiation therapy using planning computed tomography (CT) and weekly cone beam CT scans of 5 lung cancer patients. For planning purposes, we modeled the dynamic process of tumor shrinkage by morphing the original planning target volume (PTV{sub orig}) in 3 equispaced steps to the predicted residue (PTV{sub pred}). Patients were treated with a uniform prescription dose to PTV{sub orig}. By contrast, PTP optimization started with the same prescription dose to PTV{sub orig} but linearly increased the dose at each step, until reaching the highest dose achievable to PTV{sub pred} consistent with OAR limits. This method is compared with midcourse adaptive replanning. Results: Initial parenchymal gross tumor volume (GTV) ranged from 3.6 to 186.5 cm{sup 3}. On average, the primary GTV and PTV decreased by 39% and 27%, respectively, at the end of treatment. The PTP approach gave PTV{sub orig} at least the prescription dose, and it increased the mean dose of the true residual tumor by an average of 6.0 Gy above the adaptive approach. Conclusions: PTP, incorporating a tumor regression model from the start, represents a new approach to increase tumor dose without increasing toxicities, and reduce clinical workload compared with the adaptive approach, although model verification using per-patient midcourse imaging would be prudent.

  5. THE HERSCHEL REFERENCE SURVEY: DUST IN EARLY-TYPE GALAXIES AND ACROSS THE HUBBLE SEQUENCE

    SciTech Connect (OSTI)

    Smith, M. W. L.; Gomez, H. L.; Eales, S. A.; Davies, J. I.; Gear, W. K.; Ciesla, L.; Boselli, A.; Cortese, L.; Bendo, G. J.; Baes, M.; De Looze, I.; Fritz, J.; Bianchi, S.; Di Serego Alighieri, S.; Clemens, M.; Clements, D. L.; Cooray, A. R.; Gavazzi, G.; Madden, S.; and others

    2012-04-01

    We present Herschel observations of 62 early-type galaxies (ETGs), including 39 galaxies morphologically classified as S0+S0a and 23 galaxies classified as ellipticals using SPIRE at 250, 350, and 500 {mu}m as part of the volume-limited Herschel Reference Survey (HRS). We detect dust emission in 24% of the ellipticals and 62% of the S0s. The mean temperature of the dust is (T{sub d} ) = 23.9 {+-} 0.8 K, warmer than that found for late-type galaxies in the Virgo Cluster. The mean dust mass for the entire detected early-type sample is logM{sub d} = 6.1 {+-} 0.1 M{sub Sun} with a mean dust-to-stellar-mass ratio of log(M{sub d} /M{sub *}) = -4.3 {+-} 0.1. Including the non-detections, these parameters are logM{sub d} = 5.6 {+-} 0.1 and log(M{sub d} /M{sub *}) = -5.1 {+-} 0.1, respectively. The average dust-to-stellar-mass ratio for the early-type sample is fifty times lower, with larger dispersion, than the spiral galaxies observed as part of the HRS, and there is an order-of-magnitude decline in M{sub d} /M{sub *} between the S0s and ellipticals. We use UV and optical photometry to show that virtually all the galaxies lie close to the red sequence yet the large number of detections of cool dust, the gas-to-dust ratios, and the ratios of far-infrared to radio emission all suggest that many ETGs contain a cool interstellar medium similar to that in late-type galaxies. We show that the sizes of the dust sources in S0s are much smaller than those in early-type spirals and the decrease in the dust-to-stellar-mass ratio from early-type spirals to S0s cannot simply be explained by an increase in the bulge-to-disk ratio. These results suggest that the disks in S0s contain much less dust (and presumably gas) than the disks of early-type spirals and this cannot be explained simply by current environmental effects, such as ram-pressure stripping. The wide range in the dust-to-stellar-mass ratio for ETGs and the lack of a correlation between dust mass and optical luminosity

  6. Demonstration Assessment of Light Emitting Diode (LED) Residential Downlights and Undercabinet Lights in the Lane County Tour of Homes, Eugene, Oregon

    SciTech Connect (OSTI)

    Ton, My K.; Richman, Eric E.; Gilbride, Theresa L.

    2008-11-10

    illuminance measurements taken on the walls, indicating better lateral dispersion of the light. The undercabinet fixture’s light output was midway between the low and high power halogen undercabinet fixture light outputs (35.8 foot candle versus 13.4 fc and 53.4 fc) but it produced a more uniform light (max/min ratio of 7.0 versus 10.8). The color correlated temperature (CCT, the blue or yellowness) of the LED light correlated well with the halogen and incandescent lights (2675 K vs 2700 K). The color rendering of the LED downlight also correlated well at 92 CRI compared to 100 CRI for the halogen and incandescent lamps. The LED undercabinet fixture had measures of 2880 K CCT and 71 CRI compared to the 2700 K and 100 CRI scores for the halogen undercabinet fixture. Builders who toured the homes were surveyed; they gave the LED downlight high marks for brightness, said the undercabinet improved shadows and glare and said both products improved overall visibility, home appearance, and home value. Paybacks on the LED downlight ranged from 7.6 years (assuming electricity cost of 11 c/kWh) to 13.5 years (at 5C/kWh). Paybacks on the LED undercabinet fixture in a new home ranged from 4.4 years (11c/kWh electricity) to 7.6 years (5c/kWh) based on product costs of $95 per LED downlight and $140 per LED undercabinet fixture at 3 hrs per day of usage for the downlight and 2 hrs per day for the undercabinet lighting.

  7. Analysis of main steam isolation valve leakage in design basis accidents using MELCOR 1.8.6 and RADTRAD.

    SciTech Connect (OSTI)

    Salay, Michael; Kalinich, Donald A.; Gauntt, Randall O.; Radel, Tracy E.

    2008-10-01

    Analyses were performed using MELCOR and RADTRAD to investigate main steam isolation valve (MSIV) leakage behavior under design basis accident (DBA) loss-of-coolant (LOCA) conditions that are presumed to have led to a significant core melt accident. Dose to the control room, site boundary and LPZ are examined using both approaches described in current regulatory guidelines as well as analyses based on best estimate source term and system response. At issue is the current practice of using containment airborne aerosol concentrations as a surrogate for the in-vessel aerosol concentration that exists in the near vicinity of the MSIVs. This study finds current practice using the AST-based containment aerosol concentrations for assessing MSIV leakage is non-conservative and conceptually in error. A methodology is proposed that scales the containment aerosol concentration to the expected vessel concentration in order to preserve the simplified use of the AST in assessing containment performance under assumed DBA conditions. This correction is required during the first two hours of the accident while the gap and early in-vessel source terms are present. It is general practice to assume that at {approx}2hrs, recovery actions to reflood the core will have been successful and that further core damage can be avoided. The analyses performed in this study determine that, after two hours, assuming vessel reflooding has taken place, the containment aerosol concentration can then conservatively be used as the effective source to the leaking MSIV's. Recommendations are provided concerning typical aerosol removal coefficients that can be used in the RADTRAD code to predict source attenuation in the steam lines, and on robust methods of predicting MSIV leakage flows based on measured MSIV leakage performance.

  8. Impact of Gender, Partner Status, and Race on Locoregional Failure and Overall Survival in Head and Neck Cancer Patients in Three Radiation Therapy Oncology Group Trials

    SciTech Connect (OSTI)

    Dilling, Thomas J.; Bae, Kyounghwa; Paulus, Rebecca; Watkins-Bruner, Deborah; Garden, Adam S.; Forastiere, Arlene; Kian Ang, K.; Movsas, Benjamin

    2011-11-01

    Purpose: We investigated the impact of race, in conjunction with gender and partner status, on locoregional control (LRC) and overall survival (OS) in three head and neck trials conducted by the Radiation Therapy Oncology Group (RTOG). Methods and Materials: Patients from RTOG studies 9003, 9111, and 9703 were included. Patients were stratified by treatment arms. Covariates of interest were partner status (partnered vs. non-partnered), race (white vs. non-white), and sex (female vs. male). Chi-square testing demonstrated homogeneity across treatment arms. Hazards ratio (HR) was used to estimate time to event outcome. Unadjusted and adjusted HRs were calculated for all covariates with associated 95% confidence intervals (CIs) and p values. Results: A total of 1,736 patients were analyzed. Unpartnered males had inferior OS rates compared to partnered females (adjusted HR = 1.22, 95% CI, 1.09-1.36), partnered males (adjusted HR = 1.20, 95% CI, 1.09-1.28), and unpartnered females (adjusted HR = 1.20, 95% CI, 1.09-1.32). White females had superior OS compared with white males, non-white females, and non-white males. Non-white males had inferior OS compared to white males. Partnered whites had improved OS relative to partnered non-white, unpartnered white, and unpartnered non-white patients. Unpartnered males had inferior LRC compared to partnered males (adjusted HR = 1.26, 95% CI, 1.09-1.46) and unpartnered females (adjusted HR = 1.30, 95% CI, 1.05-1.62). White females had LRC superior to non-white males and females. White males had improved LRC compared to non-white males. Partnered whites had improved LRC compared to partnered and unpartnered non-white patients. Unpartnered whites had improved LRC compared to unpartnered non-whites. Conclusions: Race, gender, and partner status had impacts on both OS and locoregional failure, both singly and in combination.

  9. Slag-Refractory Interaction in Slagging Coal Gasifiers

    SciTech Connect (OSTI)

    Matyas, Josef; Sundaram, S. K.; Hicks, Brent J.; Edmondson, Autumn B.; Arrigoni, Benjamin M.

    2008-03-03

    The combustion chamber of slagging coal gasifiers is lined with refractories to protect the stainless steel shell of the gasifier from elevated temperatures and corrosive attack of the coal slag. Refractories composed primarily of Cr2O3 have been found most resistant to slag corrosion, but they continue to fail performance requirements. Post-mortem analysis of high-chromia refractory bricks collected from commercial gasifiers suggests that slag penetration and subsequent spalling of refractory are the cause of significantly shorter service life of gasifier refractories. Laboratory tests were conducted to determine the penetration depth of three slags representative of a wide variety of coals in the United States into chromia-alumina and two high-chromia refractories. Variables tested were refractory-slag combinations and two partial pressures of O2. Slag penetration depths were measured from spliced images of each refractory. Samples heated to 1470°C for 2 hrs had maximum penetration depths ranging from 1.99±0.15 mm to at least 21.6 mm. Aurex 95P, a high-chromia refractory containing 3.3% phosphorous pentoxide (P2O5), showed the least slag penetration of all refractories tested. P2O5 likely reacts with the slags to increase their viscosity and restrict molten slag penetration. Experimental data on the slag-refractory interaction will be incorporated into mathematical model that will be used to 1) identify critical conditions at which refractory corrosion sharply increases, and 2) predict the service life of a gasifier refractory.

  10. Degradation mechanisms and accelerated testing in PEM fuel cells

    SciTech Connect (OSTI)

    Borup, Rodney L; Mukundan, Rangachary

    2010-01-01

    The durability of PEM fuel cells is a major barrier to the commercialization of these systems for stationary and transportation power applications. Although there has been recent progress in improving durability, further improvements are needed to meet the commercialization targets. Past improvements have largely been made possible because of the fundamental understanding of the underlying degradation mechanisms. By investigating component and cell degradation modes; defining the fundamental degradation mechanisms of components and component interactions new materials can be designed to improve durability. Various factors have been shown to affect the useful life of PEM fuel cells. Other issues arise from component optimization. Operational conditions (such as impurities in either the fuel and oxidant stream), cell environment, temperature (including subfreezing exposure), pressure, current, voltage, etc.; or transient versus continuous operation, including start-up and shutdown procedures, represent other factors that can affect cell performance and durability. The need for Accelerated Stress Tests (ASTs) can be quickly understood given the target lives for fuel cell systems: 5000 hours ({approx} 7 months) for automotive, and 40,000 hrs ({approx} 4.6 years) for stationary systems. Thus testing methods that enable more rapid screening of individual components to determine their durability characteristics, such as off-line environmental testing, are needed for evaluating new component durability in a reasonable turn-around time. This allows proposed improvements in a component to be evaluated rapidly and independently, subsequently allowing rapid advancement in PEM fuel cell durability. These tests are also crucial to developers in order to make sure that they do not sacrifice durability while making improvements in costs (e.g. lower platinum group metal [PGM] loading) and performance (e.g. thinner membrane or a GDL with better water management properties). To

  11. Kepler-424 b: A 'lonely' hot Jupiter that found A companion

    SciTech Connect (OSTI)

    Endl, Michael; Caldwell, Douglas A.; Barclay, Thomas; Huber, Daniel; Havel, Mathieu; Howell, Steve B.; Quintana, Elisa; Isaacson, Howard; Buchhave, Lars A.; Brugamyer, Erik; Robertson, Paul; Cochran, William D.; MacQueen, Phillip J.; Lucas, Phillip; Fischer, Debra; Ciardi, David R.

    2014-11-10

    Hot Jupiter systems provide unique observational constraints for migration models in multiple systems and binaries. We report on the discovery of the Kepler-424 (KOI-214) two-planet system, which consists of a transiting hot Jupiter (Kepler-424b) in a 3.31 day orbit accompanied by a more massive outer companion in an eccentric (e = 0.3) 223 day orbit. The outer giant planet, Kepler-424c, is not detected transiting the host star. The masses of both planets and the orbital parameters for the second planet were determined using precise radial velocity (RV) measurements from the Hobby-Eberly Telescope (HET) and its High Resolution Spectrograph (HRS). In stark contrast to smaller planets, hot Jupiters are predominantly found to be lacking any nearby additional planets; they appear to be {sup l}onely{sup .} This might be a consequence of these systems having a highly dynamical past. The Kepler-424 planetary system has a hot Jupiter in a multiple system, similar to ? Andromedae. We also present our results for Kepler-422 (KOI-22), Kepler-77 (KOI-127), Kepler-43 (KOI-135), and Kepler-423 (KOI-183). These results are based on spectroscopic data collected with the Nordic Optical Telescope (NOT), the Keck 1 telescope, and HET. For all systems, we rule out false positives based on various follow-up observations, confirming the planetary nature of these companions. We performed a comparison with planetary evolutionary models which indicate that these five hot Jupiters have heavy element contents between 20 and 120 M {sub ?}.

  12. Associations of ATM Polymorphisms With Survival in Advanced Esophageal Squamous Cell Carcinoma Patients Receiving Radiation Therapy

    SciTech Connect (OSTI)

    Du, Zhongli; Zhang, Wencheng; Zhou, Yuling; Yu, Dianke; Chen, Xiabin; Chang, Jiang; Qiao, Yan; Zhang, Meng; Huang, Ying; Wu, Chen; Xiao, Zefen; Tan, Wen; and others

    2015-09-01

    Purpose: To investigate whether single nucleotide polymorphisms (SNPs) in the ataxia telangiectasia mutated (ATM) gene are associated with survival in patients with esophageal squamous cell carcinoma (ESCC) receiving radiation therapy or chemoradiation therapy or surgery only. Methods and Materials: Four tagSNPs of ATM were genotyped in 412 individuals with clinical stage III or IV ESCC receiving radiation therapy or chemoradiation therapy, and in 388 individuals with stage I, II, or III ESCC treated with surgery only. Overall survival time of ESCC among different genotypes was estimated by Kaplan-Meier plot, and the significance was examined by log-rank test. The hazard ratios (HRs) and 95% confidence intervals (CIs) for death from ESCC among different genotypes were computed by a Cox proportional regression model. Results: We found 2 SNPs, rs664143 and rs664677, associated with survival time of ESCC patients receiving radiation therapy. Individuals with the rs664143A allele had poorer median survival time compared with the rs664143G allele (14.0 vs 20.0 months), with the HR for death being 1.45 (95% CI 1.12-1.89). Individuals with the rs664677C allele also had worse median survival time than those with the rs664677T allele (14.0 vs 23.5 months), with the HR of 1.57 (95% CI 1.18-2.08). Stratified analysis showed that these associations were present in both stage III and IV cancer and different radiation therapy techniques. Significant associations were also found between the SNPs and locosregional progression or progression-free survival. No association between these SNPs and survival time was detected in ESCC patients treated with surgery only. Conclusion: These results suggest that the ATM polymorphisms might serve as independent biomarkers for predicting prognosis in ESCC patients receiving radiation therapy.

  13. BENZO[a]PYRENE DIOL EPOXIDE PERTURBATION OF CELL CYCLE KINETICS OF SYNCHRONIZED MOUSE LIVER EPITHELIAL CELLS

    SciTech Connect (OSTI)

    Pearlman, A.L.; Navsky, B.N.; Bartholomew, J.C

    1980-07-01

    A cell cycle synchronization system is described for the analysis of the perturbation of cell cycle kinetics and the cycle-phase specificity of chemicals and other agents. We used the system to study the effects of ({+-})r-7, t-8-dihydroxy-t-9, 10-oxy-7,8,9,10-tetrahydrobenzo[a]pyrene (BaP diol epoxide) upon the cell cycle of mouse liver epithelial cells(NMuLi). BaP diol epoxide(0.6 uM) was added to replated cultures of NMuLi cells that had been synchronized in various stages of the cell cycle by centrifugal elutriation. DNA histograms were obtained by flow cytometry as a function of time after replating. The data were analyzed by a computer modeling routine and reduced to a few graphs illustrating the 'net effects' of the BaP diol epoxide relative to controls. BaP diol epoxide slowed S-phase traversal in all samples relative to their respective control. Traversal through G{sub 2}M was also slowed by at least 50%. BaP diol epoxide had no apparent effect upon G{sub 1} traversal by cycling cells, but delayed the recruitment of quiescent G{sub 0} cells by about 2 hrs. The methods described constitute a powerful new approach for probing the cell cycle effects of a wide variety of agents. The present system appears to be extremely sensitive and capable of characterizing the action of agents on each phase of the cell cycle. The methods are automatable and would allow for the assay and possible differential characterization of mutagens and carcinogens.

  14. Hydrogen Production via a Commercially Ready Inorganic membrane Reactor

    SciTech Connect (OSTI)

    Paul K.T. Liu

    2005-08-23

    Single stage low-temperature-shift water-gas-shift (WGS-LTS) via a membrane reactor (MR) process was studied through both mathematical simulation and experimental verification in this quarter. Our proposed MR yields a reactor size that is 10 to >55% smaller than the comparable conventional reactor for a CO conversion of 80 to 90%. In addition, the CO contaminant level in the hydrogen produced via MR ranges from 1,000 to 4,000 ppm vs 40,000 to >70,000 ppm via the conventional reactor. The advantages of the reduced WGS reactor size and the reduced CO contaminant level provide an excellent opportunity for intensification of the hydrogen production process by the proposed MR. To prepare for the field test planned in Yr III, a significant number (i.e., 98) of full-scale membrane tubes have been produced with an on-spec ratio of >76% during this first production trial. In addition, an innovative full-scale membrane module has been designed, which can potentially deliver >20 to 30 m{sup 2}/module making it suitable for large-scale applications, such as power generation. Finally, we have verified our membrane performance and stability in a refinery pilot testing facility on a hydrocracker purge gas. No change in membrane performance was noted over the >100 hrs of testing conducted in the presence of >30% H{sub 2}S, >5,000 ppm NH{sub 3} (estimated), and heavy hydrocarbons on the order of 25%. The high stability of these membranes opens the door for the use of our membrane in the WGS environment with significantly reduced pretreatment burden.

  15. period-1 encodes an ATP-dependent RNA helicase that influences nutritional compensation of the Neurospora circadian clock

    SciTech Connect (OSTI)

    Emerson, Jillian M.; Bartholomai, Bradley M.; Ringelberg, Carol; Baker, Scott E.; Loros, Jennifer J.; Dunlap, Jay C.

    2015-12-22

    Mutants in the period-1 (prd-1) gene, characterized by a recessive allele, display a reduced growth rate and period lengthening of the developmental cycle controlled by the circadian clock. We refined the genetic location of prd-1 and used whole genome sequencing to find the mutation defining it, confirming the identity of prd-1 by rescuing the mutant circadian phenotype via transformation. PRD-1 is an RNA helicase whose orthologs, DDX5 and DDX17 in humans and Dbp2p in yeast, are implicated in various processes including transcriptional regulation, elongation, and termination, 23 ribosome biogenesis, and RNA decay. Although prdi-1smutantssiois an ATP-dependent RNA helicase, member of a sub-family display a long period (~25 hrs) circadian developmental cycle, they interestingly display a wild type period when the core circadian oscillator is tracked using a frq-luciferase transcriptional fusion under conditions of limiting nutritional carbon; the core oscillator runs with a long period under glucose-sufficient conditions. Thus PRD-1 clearly impacts the circadian oscillator and is not only part of a metabolic oscillator ancillary to the core clock. PRD-1 is an essential protein and its expression is neither light-regulated nor clock-regulated. However, it is transiently induced by glucose; in the presence of sufficient glucose PRD-1 is in the nucleus until glucose runs out which elicits its disappearance from the nucleus. Because circadian period length is carbon concentration-dependent, prd­-1 may be formally viewed as clock mutant with defective nutritional compensation of circadian period length.

  16. Measurement of K0S and K*0 in p+p, d+Au, and Cu+Cu collisions at sqrt SNN = 200 GeV

    SciTech Connect (OSTI)

    Adare, A.; Aidala, C.

    2014-11-01

    The PHENIX experiment at the Relativistic Heavy Ion Collider has performed a systematic study of K0S and K*0 meson production at midrapidity in p+p, d+Au, and Cu+Cu collisions at sqrt SNN = 200 GeV. The K0S and K*0 mesons are reconstructed via their K0S and ?0(???)?0 (???) and K*0 ? K #25;? decay modes, respectively. The measured transverse-momentum spectra are used to determine the nuclear modification factor of K0S and K*0 mesons in d+Au and Cu+Cu collisions at different centralities. In the d+Au collisions, the nuclear modification factor of K0S and K*0 mesons is almost constant as a function of transverse momentum and is consistent with unity showing that cold-nuclear-matter effects do not play a significant role in the measured kinematic range. In Cu+Cu collisions, within the uncertainties no nuclear modification is registered in peripheral collisions. In central collisions, both mesons show suppression relative to the expectations from the p+p yield scaled by the number of binary nucleon-nucleon collisions in the Cu+Cu system. In the pT range 25 GeV/c, the strange mesons ( K0S, K*0) similarly to the #30;? meson with hidden strangeness, show an intermediate suppression between the more suppressed light quark mesons (?0) and the nonsuppressed baryons (p, p-bar). At higher transverse momentum, pT > 5 GeV/c, production of all particles is similarly suppressed by a factor of ?2. (auth)

  17. Advances in Radiation Mutagenesis through Studies on Drosophila

    DOE R&D Accomplishments [OSTI]

    Muller, H. J.

    1958-06-01

    mutation occurred in peri- fertilization stages. All loci studied mutated from one to nine times. Loci mutating oftener spontaneously also gave more radiation mutation, in other studies, Spectra of individual loci prove similar for spontaneous and induced mutation. Studies on back-mutation also showed similarity of spontaneous and radiation mutations. The doubling dose for back-mutations of forked induced in spermatozoa was several hundred roentgens, gonia at diverse loci. Recent analyses of human mutational load lead to mutation-rate estimated like those earlier based on extrapolations from Drosophila, thus supporting the significance for man of the present studies. (auth)

  18. Application of the eddy current method to high speed thickness measurement

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Application of the eddy current method to high speed thickness measurement Citation Details In-Document Search Title: Application of the eddy current method to high speed thickness measurement Authors: Crowe, J C ; Libby, H L ; Skorpik, J R Publication Date: 1973-10-31 OSTI Identifier: 4438737 Report Number(s): BNWL-SA--4579; CONF-730451--1 Resource Type: Technical Report Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-73 Research Org:

  19. Measurement of Polarization Observables in the Electro-Excitation of the Proton to its First Excited State

    SciTech Connect (OSTI)

    Rikki Roche

    2003-08-01

    This thesis reports results from the Thomas Jefferson National Accelerator Facility (Jefferson Lab) Hall A experiment E91-011, which measured double-polarization observables in the pion electroproduction reaction from the proton. Specifically, the experiment measured the recoil proton polarization, polarized response functions, and cross section for the p({rvec e}, e{prime} {rvec p}) {pi}{sup o} reaction at a center-of-mass energy centered at W = 1232 MeV--the peak of the Delta(1232) resonance--and at a four-momentum transfer squared of Q{sup 2} = 1.0 GeV{sup 2}/c{sup 2}. Both the recoil proton polarization and polarized response function results will be presented in this thesis. Data were collected at Jefferson Lab, located in Newport News, Virginia during the summer of 2000. A 4.53 GeV polarized electron beam was scattered off of a cryogenic hydrogen target. The recoil proton polarization was measured in the Focal Plane Polarimeter (FPP), located in one of the two High Resolution Spectrometers (HRS) in Hall A. A maximum likelihood method was used to determine the polarized response functions directly from the measured polarizations and cross sections. A simultaneous fit of the cross sections, the recoil proton polarizations, and angular distributions of the polarized response functions will provide a determination of individual multipole amplitudes. Some of these multipole amplitudes are related to the concept of proton deformation. Both the recoil proton polarizations and polarized response functions were compared to two phenomenological models: MAID and SAID, which have all free parameters fixed, based on fits to previous world data. The measured helicity dependent observables, which are dominated by imaginary parts of Delta(1232)-resonance excitation multipole amplitudes, agree very well with the two models. The measured helicity independent observables, which are dominated by real parts of background multipole amplitudes, do not agree completely with either

  20. Phase 3 Trials of Stereotactic Radiosurgery With or Without Whole-Brain Radiation Therapy for 1 to 4 Brain Metastases: Individual Patient Data Meta-Analysis

    SciTech Connect (OSTI)

    Sahgal, Arjun; Aoyama, Hidefumi; Kocher, Martin; Neupane, Binod; Collette, Sandra; Tago, Masao; Shaw, Prakesh; Beyene, Joseph; Chang, Eric L.

    2015-03-15

    Purpose: To perform an individual patient data (IPD) meta-analysis of randomized controlled trials evaluating stereotactic radiosurgery (SRS) with or without whole-brain radiation therapy (WBRT) for patients presenting with 1 to 4 brain metastases. Method and Materials: Three trials were identified through a literature search, and IPD were obtained. Outcomes of interest were survival, local failure, and distant brain failure. The treatment effect was estimated after adjustments for age, recursive partitioning analysis (RPA) score, number of brain metastases, and treatment arm. Results: A total of 364 of the pooled 389 patients met eligibility criteria, of whom 51% were treated with SRS alone and 49% were treated with SRS plus WBRT. For survival, age was a significant effect modifier (P=.04) favoring SRS alone in patients ≤50 years of age, and no significant differences were observed in older patients. Hazard ratios (HRs) for patients 35, 40, 45, and 50 years of age were 0.46 (95% confidence interval [CI] = 0.24-0.90), 0.52 (95% CI = 0.29-0.92), 0.58 (95% CI = 0.35-0.95), and 0.64 (95% CI = 0.42-0.99), respectively. Patients with a single metastasis had significantly better survival than those who had 2 to 4 metastases. For distant brain failure, age was a significant effect modifier (P=.043), with similar rates in the 2 arms for patients ≤50 of age; otherwise, the risk was reduced with WBRT for patients >50 years of age. Patients with a single metastasis also had a significantly lower risk of distant brain failure than patients who had 2 to 4 metastases. Local control significantly favored additional WBRT in all age groups. Conclusions: For patients ≤50 years of age, SRS alone favored survival, in addition, the initial omission of WBRT did not impact distant brain relapse rates. SRS alone may be the preferred treatment for this age group.

  1. Fluidized Bed Steam Reforming of INEEL SBW Using THORsm Mineralizing Technology

    SciTech Connect (OSTI)

    Arlin L. Olson; Nicholas R. Soelberg; Douglas W. Marshall; Gary L. Anderson

    2004-12-01

    Sodium bearing waste (SBW) disposition is one of the U.S. Department of Energy (DOE) Idaho Operation Offices (NE-ID) and State of Idahos top priorities at the Idaho National Engineering and Environmental Laboratory (INEEL). Many studies have resulted in the identification of five treatment alternatives that form a short list of perhaps the most appropriate technologies for the DOE to select from. The alternatives are (a) calcination with maximum achievable control technology (MACT) upgrade, (b) steam reforming, (c) cesium ion exchange (CsIX) with immobilization, (d) direct evaporation, and (e) vitrification. Each alternative has undergone some degree of applied technical development and preliminary process design over the past four years. DOE desired further experimental data, with regard to steam reforming technology, to make informed decisions concerning selection of treatment technology for SBW. Mineralizing steam reforming technology, offered by THOR Treatment Technologies, LLC would produce a denitrated, granular mineral waste form using a high-temperature fluidized bed process. A pilot scale demonstration of the technology was performed in a 15-cm-diameter reactor vessel September 27 through October 1, 2004. The pilot scale equipment is owned by the DOE, and located at the Science and Technology Applications Research (STAR) Center in Idaho Falls, ID. Flowsheet chemistry and operational parameters were defined through a collaborative effort involving Idaho National Engineering and Environmental Laboratory, Savannah River National Laboratory (SRNL), and THOR Treatment Technologies personnel. Personnel from Science Applications International Corporation, owners of the STAR Center, operated the pilot plant. The pilot scale test was terminated as planned after achieving a total of 100 hrs of cumulative/continuous processing operation. About 230 kg of SBW surrogate were processed that resulted in about 88 kg of solid product, a mass reduction of about 62%. The

  2. Fluidized Bed Steam Reforming of Hanford LAW Using THORsm Mineralizing Technology

    SciTech Connect (OSTI)

    Olson, Arlin L.; Nicholas R Soelberg; Douglas W. Marshall; Gary L. Anderson

    2004-11-01

    The U.S. Department of Energy (DOE) documented, in 2002, a plan for accelerating cleanup of the Hanford Site, located in southeastern Washington State, by at least 35 years. A key element of the plan was acceleration of the tank waste program and completion of ''tank waste treatment by 2028 by increasing the capacity of the planned Waste Treatment Plant (WTP) and using supplemental technologies for waste treatment and immobilization.'' The plan identified steam reforming technology as a candidate for supplemental treatment of as much as 70% of the low-activity waste (LAW). Mineralizing steam reforming technology, offered by THOR Treatment Technologies, LLC would produce a denitrated, granular mineral waste form using a high-temperature fluidized bed process. A pilot scale demonstration of the technology was completed in a 15-cm-diameter reactor vessel. The pilot scale facility was equipped with a highly efficient cyclone separator and heated sintered metal filters for particulate removal, a thermal oxidizer for reduced gas species and NOx destruction, and a packed activated carbon bed for residual volatile species capture. The pilot scale equipment is owned by the DOE, but located at the Science and Technology Applications Research (STAR) Center in Idaho Falls, ID. Pilot scale testing was performed August 25, 2004. Flowsheet chemistry and operational parameters were defined through a collaborative effort involving Idaho National Engineering and Environmental Laboratory, Savannah River National Laboratory (SRNL), and THOR Treatment Technologies personnel. Science Application International Corporation, owners of the STAR Center, personnel performed actual pilot scale operation. The pilot scale test achieved a total of 68.7 hrs of cumulative/continuous processing operation before termination in response to a bed de-fluidization condition. 178 kg of LAW surrogate were processed that resulted in 148 kg of solid product, a mass reduction of about 17%. The process

  3. PEP Integrated Test D Run Report Caustic and Oxidative Leaching in UFP-VSL-T02A

    SciTech Connect (OSTI)

    Sevigny, Gary J.; Bredt, Ofelia P.; Burns, Carolyn A.; Kurath, Dean E.; Geeting, John GH; Golovich, Elizabeth C.; Guzman-Leong, Consuelo E.; Josephson, Gary B.

    2009-12-11

    Pacific Northwest National Laboratory (PNNL) has been tasked by Bechtel National Inc. (BNI) on the River Protection Project-Hanford Tank Waste Treatment and Immobilization Plant (RPP-WTP) project to perform research and development activities to resolve technical issues identified for the Pretreatment Facility (PTF). The Pretreatment Engineering Platform (PEP) was designed, constructed and operated as part of a plan to respond to issue M12, "Undemonstrated Leaching Processes" of the External Flowsheet Review Team (EFRT) issue response plan. The PEP is a 1/4.5-scale test platform designed to simulate the WTP pretreatment caustic leaching, oxidative leaching, ultrafiltration solids concentration, and slurry washing processes. The PEP replicates the WTP leaching processes using prototypic equipment and control strategies. The PEP also includes non-prototypic ancillary equipment to support the core processing. Two operating scenarios are currently being evaluated for the ultrafiltration process (UFP) and leaching operations. The first scenario (Test B and D) has caustic leaching performed in the UFP-2 ultrafiltration feed vessels (i.e., vessel UFP-VSL-T02A in the PEP and vessels UFP-VSL-00002A and B in the WTP PTF). The second scenario (Test A) has caustic leaching conducted in the UFP-1 ultrafiltration feed preparation vessels (i.e., vessels UFP-VSL-T01A and B in the PEP and vessels UFP VSL-00001A and B in the WTP PTF). In Test D, 19M sodium hydroxide (NaOH, caustic) was added to the waste slurry in the UFP VSL T02 vessel after the solids were concentrated to ~20% undissolved solids. The NaOH was added to leach solid aluminum compounds (e.g., gibbsite, boehmite). Caustic addition is followed by heating to 85°C using direct injection of steam to accelerate the leach process. The main difference of Test D compared to Test B is that the leach temperature is 85°C for 24 hrs as compared to 100°C for 12 hours. The other difference is the Test D simulant had Cr in the

  4. Syngas Conversion to Gasoline-Range Hydrocarbons over Pd/ZnO/Al2O3 and ZSM-5 Composite Catalyst System

    SciTech Connect (OSTI)

    Dagle, Robert A.; Lizarazo Adarme, Jair A.; Lebarbier, Vanessa MC; Gray, Michel J.; White, James F.; King, David L.; Palo, Daniel R.

    2014-07-01

    A composite Pd/ZnO/Al2O3-HZSM-5 (Si/Al=40) catalytic system was evaluated for the synthesis of gasoline-range hydrocarbons directly from synthesis gas. Bifunctional catalyst comprising PdZn metal and acid sites present the required catalytically active sites necessary for the methanol synthesis, methanol dehydration, and methanol-to-gasoline reactions. This system provides a unique catalytic pathway for the production of liquid hydrocarbons directly from syngas. However, selectivity control is difficult and poses many challenges. The composite catalytic system was evaluated under various process conditions. Investigated were the effects of temperature (310-375oC), pressure (300-1000 psig), time-on-stream (50 hrs), and gas-hour space velocity (740-2970 hr-1), using a H2/CO molar syngas ratio of 2.0. By operating at the lower end of the temperature range investigated, liquid hydrocarbon formation was favored, as was decreased amounts of undesirable light hydrocarbons. However, lower operating temperatures also facilitated undesirable CO2 formation via the water-gas shift reaction. Higher operating pressures slightly favored liquid synthesis. Operating at relatively low pressures (e.g. 300 psig) was made possible, whereas for methanol synthesis alone higher pressure are usually required to achieve similar conversion levels (e.g. 1000 psig). Thermodynamic constraints on methanol synthesis are eased by pushing the equilibrium through hydrocarbon formation. Catalytic performance was also evaluated by altering Pd and Zn composition of the Pd/ZnO/Al2O3 catalyst. Of the catalysts and conditions tested, selectivity toward liquid hydrocarbon was highest when using a 5% Pd metal loading and Pd/Zn molar ratio of 0.25 and mixed with HZMS-5, operating at 310oC and 300 psig, CO conversion was 43 % and selectivity (carbon weight basis) to hydrocarbons was 49 wt. %. Of the hydrocarbon fraction, 44wt. % was in the C5-C12 liquid product range and consisted primarily of aromatic

  5. Critical Research for Cost-Effective Photoelectrochemical Production of Hydrogen

    SciTech Connect (OSTI)

    Xu, Liwei; Deng, Xunming; Abken, Anka; Cao, Xinmin; Du, Wenhui; Vijh, Aarohi; Ingler, William; Chen, Changyong; Fan, Qihua; Collins, Robert; Compaan, Alvin; Yan, Yanfa; Giolando, Dean; Turner, John

    2014-10-29

    ) about 5.7% and a running time about 480 hrs, which are very promising results; we have also completed a techno-economic analysis of our PEC system, which indicates that a projected hydrogen generation cost of $2/gge is achievable with a 50 Ton-per-day (TPD) scale under certain conditions.

  6. Kinetics and Mechanisms of Calcite Reactions with Saline Waters

    SciTech Connect (OSTI)

    Gorman, Brian P

    2015-09-02

    Project Description: The general objective of the proposed research is to determine the kinetics and mechanisms of calcite reactions with saline waters over a wide range of saline water composition, pCO2, and modest ranges in T and P. This will be accomplished by studying both reaction rates and solubility from changes in solution chemistry, and making nanoscale observations of calcite precipitate surface morphology and composition at the micro-to-nano-scale to provide an understanding of controlling reaction mechanisms and pathways. The specific objectives necessary to reach the general objective are: a) determination of how pCO2, Ca2+, ionic strength and “foreign” ions influence reaction rates; and b) investigate the influence of these parameters on apparent kinetic solubility from dissolution and precipitation reactions. This information will clearly be central to the construction of reliable reaction-transport models to predict reservoir and formation response to increased CO2 in saline waters. This program was initially collaborative with John Morse at Texas A&M, however his passing shortly after the beginning of this program resulted in abbreviated research time and effort. Summary of Results: Early studies using electron microscopy and spectroscopy indicated that carbonate precipitation from natural seawater (NSW) conditions onto aragonite substrates was mediated by a surface amorphous calcium carbonate layer. It was hypothesized that this ACC layer (observed after < 5days reaction time) was responsible for the abnormal reaction kinetics and also served as a metastable seed layer for growth of epitaxial aragonite. Further studies of the ACC formation mechanism indicated a strong dependence on the Mg concentration in solution. Subsequent studies at shorter times (10 hrs) on calcite substrates and in a wide range of supersaturation conditions did not indicate any ACC layer. Instead, an epitaxial layer by layer

  7. Advanced Low Energy Enzyme Catalyzed Solvent for CO{sub 2} Capture

    SciTech Connect (OSTI)

    Zaks, Alex; Reardon, John

    2013-09-30

    A proof-of-concept biocatalyst enhanced solvent process was developed and demonstrated in an integrated bench-scale system using coal post combustion flue gas. The biocatalyst was deployed as a coating on M500X structured packing. Rate enhancement was evaluated using a non-volatile and non- toxic 20 wt% potassium carbonate solution. Greater than 500-fold volumetric scale-up from laboratory to bench scale was demonstrated in this project. Key technical achievements included: 10-fold mass transfer enhancement demonstrated in laboratory testing relative to blank potassium carbonate at 45°C; ~ 7-fold enhancement over blank in bench-scale field testing at National Carbon Capture Center; aerosol emissions were below detection limits (< 0.8 ppm); 90% capture was demonstrated at ~19.5 Nm{sup 3}/hr (dry basis); and ~ 80% CO{sub 2} capture was demonstrated at ~ 30 Nm{sup 3}/hr (dry basis) for more than 2800-hrs on flue gas with minimal detectible decline in activity. The regeneration energy requirement was 3.5 GJ/t CO{sub 2} for this solvent, which was below the target of <2.1 GJ/t CO{sub 2}. Bench unit testing revealed kinetic limitations in the un-catalyzed stripper at around 85°C, but process modeling based on bench unit data showed that equivalent work of less than 300 kWh/t CO{sub 2} including all CO{sub 2} compression can be achieved at lower temperature stripping conditions. Cost analysis showed that 20% potassium carbonate in a basic solvent flow sheet with biocatalyst coated packing has economic performance comparable to the reference NETL Case-12, 30% MEA. A detailed techno-economic analysis indicated that addition of catalyst in the stripper could reduce the cost of capture by ~6% and cost of avoided CO{sub 2} by ~10% below reference NETL Case-12. Based on these results, a directional plan was identified to reduce the cost of CO{sub 2} capture in future work.

  8. SPRAY CALCINATION REACTOR

    DOE Patents [OSTI]

    Johnson, B.M.

    1963-08-20

    selfdiffusion coefficient for lanthanum, cerium, and praseodymium were determined. The investigation of phase relationships in the plutonium-cerium-copper ternary system was continued on samples containing a high concentration of copper. These analyses indicate that complete solid solution exists between the binary compounds CeCu/sub 2/ and PuCu/sub 2/, thus forming a quasi-binary system. The study of high temperature ceramic fuel materials has continued with the homogenization and microspheroidization of binary mixtures of plutonium dioxide and zirconium dioxide. Sintering a die-pressed pellet of the mixed powders for one hour at 1450 deg C was not sufficient to completely react the constituents. Complete homogenization was obtained when the pellet was melted in the plasma flame. In addition to the plutonium dioxide-zirconium dioxide microspheres, pure beryllium oxide microspheres were produced in the plasma torch. The electronic distribution functions for the 10% by weight PuO/sub 2/ dissolved in a silicate glass were determined. The plutonium-oxygen interaction at about 2.2A is less than the plutonium-oxygen distance for the 5% PuO/sub 2/. The decrease in the interionic distance is indicative of a stronger plutonium-oxygen association for the more concentrated composition. Potassium plutonium sulfate is being evaluated as a reagent to quantitatively separate plutonium from aqueous solutions. The compound containing two waters of hydration was prepared for thermogravimetric studies using analytically pure plutonium-239. Because of the stability of this compound, it is being evaluated as a calorimetric standard for plutonium-238. (auth)

  9. Structure in the Proton and the Neutron

    DOE R&D Accomplishments [OSTI]

    Hofstadter, R.

    1958-06-01

    between the limits 0.61 x 10{sup -13} cm and 0.80 x 10{sup -13} cm. The first value (0.61 x 10{sup -13} cm) is determined by examining the total deuteron electro-disintegration cross section at a given angle and incident energy and comparing this cross section with that of the free proton under the same conditions. The second value (0.80 x 10{sup -13} cm) is found by examining the peak of the deuteron electro-disintegration cross section. Because of possible contributions to the total cross section by mesonic exchange effects, the second method is believed to be slightly more accurate. The neutron size is, therefore, approximately (0.70 plus or minus 0.10) x 10{sup -13} cm and probably the larger size 0.90 x 10{sup -13} cm is correct. Thus the magnetic clouds of the neutron and proton are closely the same. The bearing of these results on the validity of electrodynamics is discussed. Because of the small radius implied by the neutron-electron experiments, there is an anomaly between the neutron and the proton. This is represented by the small charge radius for the neutron and the much larger radius of the proton. Additional information of the structure of the deuteron and on the production of pions by electrons is also furnished by the same experiments and will be discussed at the meeting. (auth)

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

    SciTech Connect (OSTI)

    Cutler, D.

    2010-06-28

    system and factors impacting the search results are also shared along with background information and summary tables of the results. If a user knows a very specific title of a document, all three systems are helpful in finding the user a source for the document. But if the user is looking to discover relevant documents on a specific topic, each of the three systems will bring back a considerable volume of data, but quite different in focus. Google is certainly a highly-used and valuable tool to find significant ‘non-specialist’ information, and Google Scholar does help the user focus on scientific disciplines. But if a user’s interest is scientific and energy-specific, ETDEWEB continues to hold a strong position in the energy research, technology and development (RTD) information field and adds considerable value in knowledge discovery. (auth)

  11. Integrated Forest Products Refinery (IFPR)

    SciTech Connect (OSTI)

    van Heiningen, Adriaan R. P.

    2010-05-29

    Pre-extraction–kraft studies of hardwoods showed that when extracting about 10% of the wood, the final kraft pulp yield and physical properties could only be maintained at a level similar to that of regular kraft pulp when the final extract pH was close to neutral. This so-called “near neutral” pre-extraction condition at a level of 10% wood dissolution was achieved by contacting the wood chips with green liquor (GL) at a charge of about 3% (as Na2O on wood) at 160 °C for almost 2 hours (or an H-factor of about 800 hrs.). During subsequent kraft cooking of the pre-extracted hardwood chips the effective alkali charge could be reduced by about 3% (as Na2O on wood) and the cooking time shortened relative to that during regular kraft cooking, while still producing the same bleachable grade kappa number as the kraft control pulp. For softwood, no extraction conditions were discovered in the present investigation whereby both the final kraft pulp yield and physical properties could be maintained at a level similar to that of regular softwood kraft pulp. Therefore for hardwoods the “near- neutral green liquor pre-extraction conditions do meet the requirements of the IFPR concept, while for softwood, no extraction conditions were discovered which do meet these requirements. Application of simulated industrial GL at an extraction H-factor of about 800 hrs and 3% GL charge in a recirculating digester produced an hardwood extract containing about 4% (on wood) of total anhydro-sugars, 2% of acetic acid, and 1.3% of lignin. Xylan comprised of 80% of the sugars of which about 85% is oligomeric. Since only polymeric hemicelluloses and lignin may be adsorbed on pulp (produced at a yield of about 50% from the original wood), the maximum theoretical yield increase due to adsorption may be estimated as 10% on pulp (or 5% on wood). However, direct application of raw GL hardwood extract for hemicelluloses adsorption onto hardwood kraft pulp led to a yield increase of only

  12. FreedomCAR - Aftertreatment Subsystem Development

    SciTech Connect (OSTI)

    Lisa A. Prentiss

    2005-09-30

    developed to regenerate the NOx Adsorber for NOx and SOx as well as the Particulate Filter for soot. This system was fully integrated into a truck and evaluated over the chassis dynamometer for emissions capability and in real-world winter field testing. Durability of the system was evaluated over a variety of accelerated and real-time dynamometer tests. Excellent NOx and PM conversion efficiency was demonstrated, even following 3000 hrs of endurance testing. Unregulated emissions emitted by the system were evaluated as was the fuel penalty associated with the DeNOx and DeSOx regeneration processes. In the final evaluation, the system demonstrated 90% NOx conversion and 99% PM conversion at a 6% fuel penalty over the FTP-75 test cycle. While target fuel penalty levels were demonstrated using full-bypass configuration systems, the cost associated with those systems was prohibitively high and would preclude successful commercialization of the technology. Although the flow-through configuration fell 1% short of the 5% fuel penalty target, the cost of this configuration is such that commercial application is feasible. Cost drivers for the final system configuration were identified and demonstrate areas where future development areas could focus.

  13. Gas atomized precursor alloy powder for oxide dispersion strengthened ferritic stainless steel

    SciTech Connect (OSTI)

    Rieken, Joel

    2011-12-13

    Gas atomization reaction synthesis (GARS) was employed as a simplified method for producing precursor powders for oxide dispersion strengthened (ODS) ferritic stainless steels (e.g., Fe-Cr-Y-(Ti,Hf)-O), departing from the conventional mechanical alloying (MA) process. During GARS processing a reactive atomization gas (i.e., Ar-O{sub 2}) was used to oxidize the powder surfaces during primary break-up and rapid solidification of the molten alloy. This resulted in envelopment of the powders by an ultra-thin (t < 150 nm) metastable Cr-enriched oxide layer that was used as a vehicle for solid-state transport of O into the consolidated microstructure. In an attempt to better understand the kinetics of this GARS reaction, theoretical cooling curves for the atomized droplets were calculated and used to establish an oxidation model for this process. Subsequent elevated temperature heat treatments, which were derived from Rhines pack measurements using an internal oxidation model, were used to promote thermodynamically driven O exchange reactions between trapped films of the initial Cr-enriched surface oxide and internal Y-enriched intermetallic precipitates. This novel microstructural evolution process resulted in the successful formation of nano-metric Y-enriched dispersoids, as confirmed using high energy X-ray diffraction and transmission electron microscopy (TEM), equivalent to conventional ODS alloys from MA powders. The thermal stability of these Y-enriched dispersoids was evaluated using high temperature (1200°C) annealing treatments ranging from 2.5 to 1,000 hrs of exposure. In a further departure from current ODS practice, replacing Ti with additions of Hf appeared to improve the Y-enriched dispersoid thermal stability by means of crystal structure modification. Additionally, the spatial distribution of the dispersoids was found to depend strongly on the original rapidly solidified microstructure. To exploit this, ODS microstructures were engineered from different

  14. Final Scientific Report - "Novel Steels for High Temperature Carburizing"

    SciTech Connect (OSTI)

    McKimpson, Marvin G.; Liu, Tianjun; Maniruzzaman, Md

    2012-07-27

    This program was undertaken to develop a microalloy-modified grade of standard carburizing steel that can successfully exploit the high temperature carburizing capabilities of current commercial low pressure (i.e. 'vacuum') carburizing systems. Such steels can lower the amount of energy required for commercial carburizing operations by reducing the time required for deep-case carburizing operations. The specific technical objective of the work was to demonstrate a carburizing steel composition capable of maintaining a prior austenite grain size no larger than ASTM grain size number 5 after exposure to simulated carburizing conditions of 1050 C for 8 hr. Such thermal exposure should be adequate for producing carburized case depths up to about 2 mm. Such carburizing steels are expected to be attractive for use across a wide range of industries, including the petroleum, chemical, forest products, automotive, mining and industrial equipment industries. They have potential for reducing energy usage during low pressure carburizing by more than 25%, as well as reducing cycle times and process costs substantially. They also have potential for reducing greenhouse gas emissions from existing low pressure carburizing furnaces by more than 25%. High temperature carburizing can be done in most modern low pressure carburizing systems with no additional capital investment. Accordingly, implementing this technology on carburizing furnaces will provide a return on investment significantly greater than 10%. If disseminated throughout the domestic carburizing community, the technology has potential for saving on the order of 23 to 34 trillion BTU/year in industrial energy usage. Under the program, two compositions of microalloyed, coarsening-resistant low alloy carburizing steels were developed, produced and evaluated. After vacuum annealing at 1050oC for 8 hrs and high pressure gas quenching, both steels exhibited a prior austenite ASTM grain size number of 5.0 or finer. For

  15. MATERIALS DEGRADATION ANALYSIS AND DEVELOPMENT TO ENABLE ULTRA LOW COST, WEB-PROCESSED WHITE P-OLED FOR SSL

    SciTech Connect (OSTI)

    DR. DEVIN MACKENZIE

    2011-12-13

    Progress over Phase II of DE-FG02-07ER86293 'Materials Degradation Analysis and Development to Enable Ultra Low Cost, Web-Processed White P-OLED for SSL' was initially rapid in terms of device performance improvements. We exceeded our device luminance lifetime goals for printed flexible white OLEDs as laid out in our project proposal. Our Phase II performance target was to demonstrate >1500 hours luminance lifetime at 100 Cd/m2 from a printed flexible device. We now have R&D devices well in excess of 8000 hrs lifetime at 100 Cd/m2, tested in air. We also were able to produce devices which met the voltage target of >1500 hours below 15V operation. After completing the initial performance milestones, we went on to focus on color-related degradation issues which were cited as important to commercialization of the technology by our manufacturing partners. We also put additional focus on cathode work as the active material development that occurred over the STTR time period required an adaptation of the cathode from the original cathode formulations which were developed based on previous generation active layer materials. We were able to improve compatibility of the cathode with some of the newer generation active layer materials and improve device yield and voltage behavior. An additional objective of the initial Phase II was to further develop the underlying manufacturing technology and real-life product specifications. This is a key requirement that must be met to ensure eventual commercialization of this DOE-funded technology. The link between commercial investment for full commercialization and R&D efforts in OLED solid State Lighting is often a large one. Add-Vision's lower cost, printed OLED manufacturing approach is an attraction, but close engagement with manufacturing partners and addressing customer specifications is a very important link. Manufacturing technology encompasses development of moisture reduction encapsulation technology, improved cost

  16. Direct Methanol Fuel Cell Prototype Demonstration for Consumer Electronics Applications

    SciTech Connect (OSTI)

    Carlstrom, Charles, M., Jr.

    2009-07-07

    demonstrated robust operation when tested at various orientations, temperatures, and humidity levels. Durability testing has progressed significantly over the course of the program. MEA, engine, and system level steady state testing has demonstrated degradation rates acceptable for initial product introduction. Test duration of over 5000 hrs has been achieved at both the MEA and breadboard system level. P3 level prototype life testing on engines (stacks with reactant conditioning) showed degradation rates comparable to carefully constructed lab fixtures. This was a major improvement over the P2 and P1 engine designs, which exhibited substantial reductions in life and performance between the lab cell and the actual engine. Over the course of the work on the P3 technology set, a platform approach was taken to the system design. By working in this direction, a number of product iterations with substantial market potential were identified. Although the main effort has been the development of a prototype charger for consumer electronic devices, multiple other product concepts were developed during the program showing the wide variety of potential applications.

  17. Industrial Gas Turbine Engine Catalytic Pilot Combustor-Prototype Testing

    SciTech Connect (OSTI)

    Etemad, Shahrokh; Baird, Benjamin; Alavandi, Sandeep; Pfefferle, William

    2010-04-01

    , Incorporated Saturn engine rig. High pressure single-injector rig and modified engine rig tests demonstrated NOx less than 2 ppm and CO less than 10 ppm over a wide flame temperature operating regime with low combustion noise (<0.15% peak-to-peak). Minimum NOx for the optimized engine retrofit Full RCL® designs was less than 1 ppm with CO emissions less than 10 ppm. Durability testing of the substrate and catalyst material was successfully demonstrated at pressure and temperature showing long term stable performance of the catalytic reactor element. Stable performance of the reactor element was achieved when subjected to durability tests (>5000 hours) at simulated engine conditions (P=15 atm, Tin=400C/750F.). Cyclic tests simulating engine trips was also demonstrated for catalyst reliability. In addition to catalyst tests, substrate oxidation testing was also performed for downselected substrate candidates for over 25,000 hours. At the end of the program, an RCL® catalytic pilot system has been developed and demonstrated to produce NOx emissions of less than 3 ppm (corrected to 15% O2) for 100% and 50% load operation in a production engine operating on natural gas. In addition, a Full RCL® combustor has been designed and demonstrated less than 2 ppm NOx (with potential to achieve 1 ppm) in single injector and modified engine testing. The catalyst/substrate combination has been shown to be stable up to 5500 hrs in simulated engine conditions.

  18. Hydrogen Production via a Commerically Ready Inorganic membrane Reactor

    SciTech Connect (OSTI)

    Paul Liu

    2007-06-30

    supported on our commercial ceramic membrane for large-scale applications, such as coal-based power generation/hydrogen production, was also continued. A significant number (i.e., 98) of full-scale membrane tubes have been produced with an on-spec ratio of >76% during the first production trial. In addition, we have verified the functional performance and material stability of this hydrogen selective CMS membrane with a hydrocracker purge gas stream at a refinery pilot testing facility. No change in membrane performance was noted over the >100 hrs of testing conducted in the presence of >30% H{sub 2}S, >5,000 ppm NH{sub 3} (estimated), and heavy hydrocarbons on the order of 25%. The excellent stability of our hydrogen selective CMS membrane opens the door for its use in WGS-MR with a significantly reduced requirement of the feedstock pretreatment.

  19. Status report : guard containment CFD analysis.

    SciTech Connect (OSTI)

    Tzanos, C. P.; Nuclear Engineering Division

    2006-03-03

    decay heat levels at GFR target power densities. The lower back-up pressure, plus whatever natural convection is available at this pressure, will be utilized to significantly reduce the blower power of the active DHR system sized to remove 2-3% decay power. The objective is to be able to have such low power requirements so that power supplies such as batteries without the need for startup, can be utilized. This lower back-up pressure should be sufficient to support natural convection removal of 0.5% decay heat which occurs at {approx}24 hrs. So there should be no more need for active systems/power supply after the initial period of one day. Furthermore, since there will be a decay of the after-heat from 2-3% to 0.5% in this time period, credit should be taken in probability space for loss of active systems during the 24 hours. The safety approach will then be a probabilistic one. In the future discussions with the regulatory authorities the approach which will then be taken is that this class of decay heat removal accidents should be treated in combination with the PRA rather than solely through deterministic calculations. Work is now ongoing in the U.S.-France I-NERI GFR project to further evaluate this hybrid passive/active approach to heat removal for depressurized decay heat accidents. The objective of the analysis documented in this report is to provide information on local and global temperature, pressure and flow distributions in the guard containment , during steady state, and reactor vessel depressurization conditions due to a small break in the reactor vessel bottom control rod drive system. This is for the 2400 MWt plant option. The results should lead to improved guard containment designs and enhanced margin for safety criteria.

  20. Carbon Molecular Sieve Membrane as a True One Box Unit for Large Scale Hydrogen Production

    SciTech Connect (OSTI)

    Liu, Paul

    2012-05-01

    -gas under this project. A promising process scheme has been developed for power generation and/or hydrogen coproduction with CCS based upon our proposed "one-box" process. Our preliminary economic analysis indicates about 10% reduction in the required electricity selling price and ~40% cost reduction in CCS on per ton CO{sub 2} can be achieved in comparison with the base case involving conventional WGS with a two-stage Selexsol® for CCS. Long term field tests (e.g., >1,000 hrs) with the incorporation of the catalyst for the WGS membrane reactor and more in-depth analysis of the process scheme are recommended for the future study.

  1. Final Technical Report for the project titled "Manganese Based Permanent Magnet with 40 MGOe at 200°C"

    SciTech Connect (OSTI)

    Cui, Jun

    2015-12-31

    The objective of project was to develop MnBi based permanent magnet for high temperature application (~150°C). This objective is derived based on MnBi’s unique positive temperature dependence of coercivity, which is doubled from ~1 T at RT to ~2.5 T at 200°C. Because of its limited magnetization (<0.9 T at RT), the MnBi magnet is best suited to fill in the gap between rare earth based NdFeB-Dy or SmCo magnet (20 MGOe) and the AlNiCo magnet (10 MGOe) at 150°C. It is expected that if successfully developed, MnBi will effectively mitigate the world’s demand on Dy. Before this project, the highest LTP content in MnBi powder is about 90% if the quantity of the powder is less than 5 gram (using melt-spin method); or 80% if the quantity is greater than 100 gram (using conventional powder metallurgical method such as arc melting and annealing). After this project, large quantities (5kg/batch) with high LPT phase content (>92 wt%) can be routinely synthesized. This achievement is made possible by the newly developed synthesis method based on conventional metallurgical processing technique involving arc melting, two-stage ingot annealing, grinding, sieving, and vacuum annealing. Before this project, the finest powder particle size is about 35 μm with overall powder composition maintaining at about 85% LTP phase. The reason why LTP phase content is listed along with particle size is because LTP MnBi is easy to decompose when exposed to temperature higher than 350 °C. As result, only low energy ball milling can be used to refine the particle size; moreover, the ball milling time cannot exceed 4 hrs, or else the decomposed LTP MnBi phase will exceed 10%. After this project, the finest powder size is reduced to 1~5 μm while maintain the 90% LTP MnBi phase content. This achievement is made possible by a newly developed cryogenic ball milling system, which provides -70 °C ambient for the rolling container. Before this project, it is not clear if MnBi will

  2. Worksheet

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

    ;OH","AC",138,138,1433.6,"ACSR","Single",1,1,"Steel Tower",,0,0,0,0,0,"application/vnd.ms-excel" 2003,15143,"Platte River Power Authority",1,"Rawhide","Timberline West",100,31.63,"OH","AC",230,230,954,"ACSR","Single",2,2,"Steel/Tower & Pole",378,5553,1928767,2385430,251850,4571600,"application/vnd.ms-excel" 2003,15159,"Plymouth City of",1,"Mullet River Sub","Sub # 1",100,0.8,"OH","AC",138,138,336.4,"ACSR","SINGLE",1,1,"Steel Double Pole",33,0,0,0,1492139,1492139,"application/vnd.ms-excel" 2003,16534,"Sacramento Municipal Util Dist",1,"Natomas","Elverta",100,4.3,"OH","AC",230,230,954,"Aluminum","Single",1,1,"Steel Tower",316,0,0,0,0,0,"application/vnd.ms-excel" 2003,17543,"South Carolina Pub Serv Auth",1,"Rainey - Anderson (Duke) #1","Rainey - Anderson (Duke) #1",100,9.51,"OH","AC",230,230,1272,"ACSR","Double",2,2,"Steel / Tower",956,840152,1230361,1207282,22364,3300159,"application/vnd.ms-excel" 2003,17543,"South Carolina Pub Serv Auth",2,"Rainey - Anderson (Duke) #2","Rainey - Anderson (Duke) #2",100,9.51,"OH","AC",230,230,1272,"ACSR","Double",2,2,"Steel / Tower",956,840152,1230361,1207282,22364,3300159,"application/vnd.ms-excel" 2003,18642,"Tennessee Valley Authority",1,"West Ringgold","Center Point",100,7.94,"OH","AC",115,230,954,"ASCR","Single",1,2,"Steel Tower",,2086252,5658529,1502763,3053959,12301503,"application/vnd.ms-excel" 2003,18642,"Tennessee Valley Authority",2,"NE Johnson

  3. Enhanced vector borne disease surveillance of California Culex mosquito populations reveals spatial and species-specific barriers of infection.

    SciTech Connect (OSTI)

    VanderNoot, Victoria A.; Curtis, Deanna Joy; Koh, Chung-Yan; Brodsky, Benjamin H; Lane, Todd

    2014-08-01

    terium and c am p y l o bacter bac t er i al spec i e s . W e utilized the s e mic r obial transcri p tomes pre s e nt in g e ogra p hical l y defined Cul e x po p ul a tions to defi n e spatial and m osqui t o specie s -spec i fic ba r r iers of i n fecti o n. T he v i r ome and microbi o me c o mpos i tion id e ntified in e ach mosqui t o p o ol pr o v i ded suf f icient resolut i on to dete r m i ne both the mosq u ito species and the g e o graphic regi o n in Californ i a w h e re t h e mosqui t o po o l orig i n ated. T his d a ta pr o v i des ins i ght in t o the compl e x i t y of microb i al spec i es cir c ulati n g in med i cal l y i mport a nt Culex mosqui t oes a nd t h eir potent i al im p act o n t he tran s missi o n of v ector-b o rne human / veter i na r y p a t hogens in C a liforn i a.