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Sample records for gk guernsey lg

  1. Guernsey Renewable Energy Commission GREC | Open Energy Information

    Open Energy Info (EERE)

    Renewable Energy Commission GREC Jump to: navigation, search Name: Guernsey Renewable Energy Commission (GREC) Place: St. Martin, Guernsey, Channel Islands, United Kingdom Zip: GY1...

  2. Guernsey County, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Zone Number 5 Climate Zone Subtype A. Places in Guernsey County, Ohio Byesville, Ohio Cambridge, Ohio Cumberland, Ohio Fairview, Ohio Lore City, Ohio Old Washington, Ohio Pleasant...

  3. LG: Order (2015-CE-14022)

    Broader source: Energy.gov [DOE]

    DOE ordered LG Electronics USA, Inc. to pay a $8,000 civil penalty after finding LG had failed to certify that various refrigerator-freezer basic models comply with the applicable energy conservation standards.

  4. L:LCB:lg

    Office of Legacy Management (LM)

    L:LCB:lg '. ,. ), .; ..:.;; ~ .,. Fhazmon sAmi.now uatsri.als co. 7356 sanca !.tonioa Boulevard Eollymod 46, Calif. Attr Mr. J. 2. Alburger CslItlI%LOIll - Ootober, 9, l&2 ,:;.. ~. Tk have your letter dabed Ootobor~B, 1962 &ah is euffioient to give w a better plotwe of the we wblch you propose to make ofuraniumoorrpovndE inluud.now'paintpignonts. We are attaahing licanse number C-2663 uhi&.permits you to purchase three pounds ofuraniumoompounda for demlop3mt mrk. 1% want ybu to

  5. LG: Order (2014-SE-15011)

    Broader source: Energy.gov [DOE]

    DOE ordered LG Electronics USA, Inc. to pay a $1,479,860 civil penalty after finding LG had manufactured and distributed in commerce in the U.S. at least 7,438 units of basic model LT143CNR, a noncompliant room air conditioner.

  6. GK Bio Energy Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    GK Bio Energy Pvt Ltd Jump to: navigation, search Name: GK Bio-Energy Pvt Ltd Place: Tamil Nadu, India Product: GK Bio-Energy Pvt Ltd is involved with a project that used poultry...

  7. Settlement Agreement between DOE and LG Electronics | Department of Energy

    Energy Savers [EERE]

    Settlement Agreement between DOE and LG Electronics Settlement Agreement between DOE and LG Electronics November 6, 2015 DOE reached an agreement with LG Electronics, USA, Inc. (LG) that modifies a prior agreement under which LG had been making annual payments to consumers who had purchased certain models of LG and Kenmore-brand French Door refrigerators. Download complete agreement from link below. PDF icon Settlement Agreement between DOE and LG Electronics More Documents & Publications

  8. LS Industrial Systems Co Ltd formerly LG Industrial Systems ...

    Open Energy Info (EERE)

    LS Industrial Systems Co Ltd formerly LG Industrial Systems Jump to: navigation, search Name: LS Industrial Systems Co Ltd (formerly LG Industrial Systems) Place: Anyang,...

  9. LG Electronics v. DOE - Defendants' Brief in Opposition to Plaintiff...

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

    Electronics v. DOE - Defendants' Brief in Opposition to Plaintiff LG Electronics' Motion for a Preliminary Injunction LG Electronics v. DOE - Defendants' Brief in Opposition to ...

  10. LG: Noncompliance Determination (2014-SE-15011)

    Broader source: Energy.gov [DOE]

    DOE issued a Notice of Noncompliance Determination to LG Electronics USA, Inc. finding that room air conditioner basic model LT143CNR does not comport with the energy conservation standards.

  11. LG: Proposed Penalty (2014-SE-15011)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that LG Electronics USA, Inc. manufactured and distributed noncompliant room air conditioner basic model LT143CNR in the U.S.

  12. LG: Proposed Penalty (2015-CE-14022)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that LG Electronics USA, Inc. failed to certify various refrigerator-freezer basic models as compliant with the applicable energy conservation standards.

  13. DOE Reaches Agreement with LG Electronics | Department of Energy

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

    Agreement with LG Electronics DOE Reaches Agreement with LG Electronics November 6, 2015 - 1:28pm Addthis DOE reached an agreement with LG Electronics, USA, Inc. (LG) that modifies a prior agreement under which LG had been making annual payments to consumers who had purchased certain models of LG and Kenmore-brand French Door refrigerators. Under the modified agreement, LG will issue one larger, lump-sum payment to each of the approximately 92,000 customers who are currently receiving annual

  14. DOE Reaches Agreement with LG Electronics, USA, On Refrigerator Energy

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

    Matter | Department of Energy Reaches Agreement with LG Electronics, USA, On Refrigerator Energy Matter DOE Reaches Agreement with LG Electronics, USA, On Refrigerator Energy Matter November 14, 2008 - 4:47pm Addthis ENERGY STAR® Program Continues to Help American Consumers Make Energy Efficient Choices WASHINGTON - The U.S. Department of Energy (DOE) today announced an agreement with LG Electronics, USA, Inc. (LG), resolving concerns related to energy usage measurements reported on LG

  15. LG Dismisses Lawsuit against DOE over Energy Star Enforcement

    Broader source: Energy.gov [DOE]

    DOE announced today that LG Electronics voluntarily dismissed its lawsuit against DOE over the Department's decision to require LG to use the same energy efficiency tests as other manufacturers and...

  16. DOE_LG_Signed_Settlement_Agreement.pdf | Department of Energy

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

    LG_Signed_Settlement_Agreement.pdf DOE_LG_Signed_Settlement_Agreement.pdf digitalsender PDF icon DOE_LG_Signed_Settlement_Agreement.pdf More Documents & Publications jrevSETTLEMENT0105.PDF� Application for Presidental Permit OE Docket No. PP-230-4 International Transmission Company: Settlement Agreement Settlement Agreement, Sandia Corporation - SSA-2011-01

  17. LG Display Everlight Electronics JV | Open Energy Information

    Open Energy Info (EERE)

    China Product: China-based joint venture focused on the production of LED backlight packaging. References: LG Display & Everlight Electronics JV1 This article is a stub. You...

  18. LgCOOleS, Se*&,,

    Office of Legacy Management (LM)

    ; "Ofice Mem . m *" ' ' *IilCl:t Consists of & " ' / Of LgCOOleS, Se*&,, es * UNITED STATES G-OVERNM NT <;$)~~ 3i;t-j /Lj ' , ~~~' jCjC;O c) TO I LT. :s. Clnr!te, ,;or,~~~,~' , -.,,..:-:-Y"' r~-;i~.L.-Z.:r DATE: uL"C!.,?r 6, 1' ?L9 A meting mj: !1:1d in i:1CG bet,. _ ^ .- ',cel representatives 51 ;.2rshz:i sr.3 the A;.35 to nwotiztc .the prices for producing FY-1: (brow oxise), _1 I%-; (green salt and .?T-12 (he::.-iZluoriic) fcr the sc2or.d 3,uarter of

  19. TEE-0025 - In the Matter of LG Electronics, Inc. | Department of Energy

    Energy Savers [EERE]

    5 - In the Matter of LG Electronics, Inc. TEE-0025 - In the Matter of LG Electronics, Inc. This Decision and Order considers an Application for Exception filed by LG Electronics, Inc. (LG) seeking exception relief from the provisions of 10 C.F.R. Part 430, Energy Conservation Program for Consumer Products: Energy Conservation Standards for Refrigerators, Refrigerator-Freezers and Freezers (Refrigerator Efficiency Standards). In its exception request, LG asserts that the firm would suffer a gross

  20. LG to DOE General Counsel; Re:Request for Comment on Large Capacity...

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

    in excess of 3.8 cu ft, LG Vice President of Government Relations and Communications, John I. Taylor, submits this letter outlining LG's views on the set of "unique circumstances." ...

  1. LG Solid Oxide Fuel Cell (SOFC) Model Development

    SciTech Connect (OSTI)

    Haberman, Ben; Martinez-Baca, Carlos; Rush, Greg

    2013-03-31

    This report presents a summary of the work performed by LG Fuel Cell Systems Inc. during the project LG Solid Oxide Fuel Cell (SOFC) Model Development (DOE Award Number: DE-FE0000773) which commenced on October 1, 2009 and was completed on March 31, 2013. The aim of this project is for LG Fuel Cell Systems Inc. (formerly known as Rolls-Royce Fuel Cell Systems (US) Inc.) (?LGFCS?) to develop a multi-physics solid oxide fuel cell (SOFC) computer code (MPC) for performance calculations of the LGFCS fuel cell structure to support fuel cell product design and development. A summary of the initial stages of the project is provided which describes the MPC requirements that were developed and the selection of a candidate code, STAR-CCM+ (CD-adapco). This is followed by a detailed description of the subsequent work program including code enhancement and model verification and validation activities. Details of the code enhancements that were implemented to facilitate MPC SOFC simulations are provided along with a description of the models that were built using the MPC and validated against experimental data. The modeling work described in this report represents a level of calculation detail that has not been previously available within LGFCS.

  2. LG to DOE General Counsel; Re:Request for Comment on Large Capacity Clothes

    Energy Savers [EERE]

    Washers | Department of Energy LG to DOE General Counsel; Re:Request for Comment on Large Capacity Clothes Washers LG to DOE General Counsel; Re:Request for Comment on Large Capacity Clothes Washers LG response to DOE's request for information regarding alternative test procedures for large-capacity clothes washer models, December 7, 2010. After DOE requested the views of interested parties concerning implementation of an alternative test procedure for large-capacity clothes washer models,

  3. U.S. District Court Upholds DOE's Action Against LG to Enforce ENERGY STAR

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

    Requirements | Department of Energy District Court Upholds DOE's Action Against LG to Enforce ENERGY STAR Requirements U.S. District Court Upholds DOE's Action Against LG to Enforce ENERGY STAR Requirements January 19, 2010 - 12:00am Addthis Washington, D.C. - On Monday, the United States District Court for the District of Columbia upheld the Department of Energy's decision to remove the ENERGY STAR® label from certain inefficient LG refrigerator-freezer models. As part of its expanded

  4. U.S. District Court Upholds DOE's Action Against LG to Enforce...

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

    Models DOE Announces Additional Energy Efficiency Enforcement Action to Protect Consumers DOE Reaches Agreement with LG Electronics, USA, On Refrigerator Energy Matter

  5. LG Electronics U.S.A. v. DOE, Stipulation of Voluntary Dismissal

    Broader source: Energy.gov [DOE]

    LG Electronics U.S.A., Inc. v. U.S. Dept. of Energy, Civil Action Number 1:09-cv-02297-JDB - LG voluntarily dismissed its claims against the DOE and agrees to remove the ENERGY STAR labels from various refrigerator-freezers.

  6. Lg excitation, attenuation, and source spectral scaling in central and eastern North America

    SciTech Connect (OSTI)

    Mitchell, B.J.; Xie, J.; Baqer, S.

    1997-10-01

    Seismic moments and corner frequencies were obtained for many earthquakes in the central and eastern United States, and for a few events in the western United States, using the Lg phase and a recently developed inversion algorithm. Additionally, Q values for the Lg phase along paths to individual stations were obtained simultaneously with the source parameters. Both corner frequencies and magnitudes were found to vary systematically with moment. For moments between 0.15 and 400 x 10{sup 15} N-m corner frequencies vary between about 4 and 0.2 Hz while body-wave magnitude varies between about 3.5 and 5.8. A map of Lg Q values displays a systematic decrease from east and west. Maximum and minimum values are 989 and 160, respectively. Lg coda Q values were obtained for the entire United States with excellent coverage in the eastern and western portions of the country and somewhat poorer coverage in the central portion. Lg coda Q is highest (700-750) in a region of the northeastern United States that includes portions of New York and Pennsylvania and lowest (>200) in California. Lg coda Q is lower (250-450) everywhere west of Rocky Mountains than in the rest of the country (450-750). Q determinations for both the direct Lg phase and Lg coda indicate that, for an earthquake of a given magnitude, Lg and its coda will propagate much more efficiently, and cause damage over a wider area, in the eastern and central United States than it will in the United States.

  7. DOE Defends Decision to Revoke Energy Star Designation for Certain LG Refrigerators

    Broader source: Energy.gov [DOE]

    On December 23, 2009, the Government filed its brief in opposition to LG Electronics' motion for a preliminary injunction in the U.S. District Court for the District of Columbia.

  8. LG.pdf

    Energy Savers [EERE]

  9. Guernsey-Muskingum El Coop Inc | Open Energy Information

    Open Energy Info (EERE)

    861 Data Utility Id 7891 Utility Location Yes Ownership C NERC Location RFC NERC RFC Yes RTO PJM Yes Activity Distribution Yes This article is a stub. You can help OpenEI by...

  10. LG Display | Open Energy Information

    Open Energy Info (EERE)

    Zip: 150-721 Product: Korea Republic-based manufacturer and merchant supplier of thin-film transistor liquid crystal displays. Manufacturer of thin-film PV. Coordinates:...

  11. SUBJECT: MEMORANDUM DAu&!Lg)_)~Q-----__

    Office of Legacy Management (LM)

    0 Production Cl Disposal Storage TY?Z OF CONTRACT --- 0 Prime 0 Subcontract& 7 Purchase Order 0 Other information (i.e., cost + fixed fee, unit...

  12. LG Chem Ltd | Open Energy Information

    Open Energy Info (EERE)

    of petrochemical goods, plastics, flooring and automobile parts. They manufacture Lithium ion batteries. Coordinates: 37.557121, 126.977379 Show Map Loading map......

  13. LG Electronics Inc | Open Energy Information

    Open Energy Info (EERE)

    manufacturer of electronics and telecommunication products; PV thin-film cell manufacturing is under consideration. Coordinates: 37.557121, 126.977379 Show Map Loading...

  14. FY15 Progress Report for PL14-Lg Radius SIMS-PD1Ea: Large Radius SIMS Support / Large Radius SIMS for Nuclear Materials Analysis and Characterization

    SciTech Connect (OSTI)

    Zimmer, Mindy M.; Naes, Benjamin E.; Willingham, David G.; Cloutier, Janet M.

    2015-09-15

    PNNL has been procured a Cameca 1280 Large Radius Secondary Ions Mass Spectrometer (LRSIMS) from the Amtek corporation out of France. This state-of-the-art instrument is aligning PNNL to deliver to NNSA the ability to address issues from proliferation detection to nuclear archeology of reactor operation and cascade enrichment history verification pushing beyond the limits of currently available methods and instrumentation at PNNL.

  15. Indian Energy Ltd | Open Energy Information

    Open Energy Info (EERE)

    Kingdom Zip: W1S 1JY Sector: Wind energy Product: Guernsey-based AIM listed independent power producer with focus on wind project development. References: Indian Energy Ltd.1...

  16. Support for ENERGY STAR Enforcement | Department of Energy

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

    (LG) that modifies a prior agreement under which LG had been making annual payments to consumers who had purchased certain models of LG and Kenmore-brand French Door refrigerators. ...

  17. MODIFICATION TO AN AGREEMENT BETWEEN THE U.S. DEPARTMENT OF ENERGY

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

    solutions in the United States, all under LG's "Life's Good" marketing theme. www.lg.com. Media Contact: LG Electronics USA John I. Taylor (847) 94 1-8 181 john.taylor@lge.com...

  18. DOE Defends Decision to Revoke Energy Star Designation for Certain...

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

    Decision to Revoke Energy Star Designation for Certain LG Refrigerators DOE Defends Decision to Revoke Energy Star Designation for Certain LG Refrigerators December 23, 2009 -...

  19. CX-006239: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Structure Replacement, Guernsey Rural Substation to Limestone Substation, Platte County, WyomingCX(s) Applied: B4.6Date: 10/02/2009Location(s): Platte County, WyomingOffice(s): Western Area Power Administration-Rocky Mountain Region

  20. Research & Development Opportunities for Joining Technologies in HVAC&R

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

    Opportunities for Joining Technologies in HVAC&R W. Goetzler, M. Guernsey, J. Young October 2015 (This page intentionally left blank) NOTICE This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the

  1. Research and Development Roadmap for Emerging HVAC Technologies

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

    Research & Development Roadmap for Emerging HVAC Technologies W. Goetzler, M. Guernsey, and J. Young October 2014 Prepared by Navigant Consulting, Inc. (This page intentionally left blank) NOTICE This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied,

  2. Piezooptic coefficients of four neodymium-doped laser glasses

    SciTech Connect (OSTI)

    Waxler, R.M.; Feldman, A.

    1980-08-01

    The stress-induced birefringence was measured for the phosphate glasses Q-88, LG-812, E-181, and LHG-10. (AIP)

  3. DISCLAIMER : UNCONTROLLED WHEN PRINTED - PLEASE CHECK THE STATUS...

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

    IODGCOOTEDHCD Document Security: Internal Use RO: Henderson Mark Read Access LG: EC, GG: IO DDGs (and Senior Advisors), AD: ITER, AD: External Collaborators, AD: IODirector- ...

  4. NETL F 451.1/1-1, Categorical Exclusion Designation Form

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

    098 LG Fuel Cell Systems Canton, OH Rolls Royce Fuel Cell Systems Ltd. - Derby, Derbyshire, UK and Carpenter Technology - Reading, PA FESCCAESD Patcharin Burke Advanced Materials...

  5. Department of Energy to Take Steps to Remove ENERGY STAR Label on Certain

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

    LG Refrigerator-Freezer Models | Department of Energy to Take Steps to Remove ENERGY STAR Label on Certain LG Refrigerator-Freezer Models Department of Energy to Take Steps to Remove ENERGY STAR Label on Certain LG Refrigerator-Freezer Models December 7, 2009 - 12:00am Addthis Washington, DC - The Department of Energy announced today that as part of the expanded enforcement efforts under the ENERGY STAR® program, effective January 2, 2010, certain LG French-door refrigerator-freezers are

  6. Photo Gallery

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

    Credit: James Pryatel

    lg.jpg" target"blank">Download ...

  7. DOE Announces 1st Projects to Meet President's Clean Coal Commitment...

    Office of Environmental Management (EM)

    LG&E Energy Corporation, Louisville, KY (Withdrawn), which proposes to install an advanced air pollution control system on a 524-megawatt unit of the Ghent Generating Station, ...

  8. Tes Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Product: Korean manufacturer of semiconductor capital equipment; works with LG Electronics to build PECVD equipment Coordinates: 37.22229, 127.227028 Show Map Loading...

  9. 2008 Annual Merit Review Results Summary - 3. Battery Development...

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

    ... will move the technologies toward or into the marketplace? Please state the reasons for your selection. One reviewer highlighted CPI's previous history as LG Chem in successfully ...

  10. June 2015 Most Viewed Documents for Materials | OSTI, US Dept...

    Office of Scientific and Technical Information (OSTI)

    urethane foam systems Madden, J.P.; Baker, G.K.; Smith, C.H. (1971) 148 Overcoming residual stresses and machining distortion in the production of aluminum alloy satellite boxes. ...

  11. An optical simulation of shared memory

    SciTech Connect (OSTI)

    Goldberg, L.A.; Matias, Y.; Rao, S.

    1994-06-01

    We present a work-optimal randomized algorithm for simulating a shared memory machine (PRAM) on an optical communication parallel computer (OCPC). The OCPC model is motivated by the potential of optical communication for parallel computation. The memory of an OCPC is divided into modules, one module per processor. Each memory module only services a request on a timestep if it receives exactly one memory request. Our algorithm simulates each step of an n lg lg n-processor EREW PRAM on an n-processor OCPC in O(lg lg n) expected delay. (The probability that the delay is longer than this is at most n{sup {minus}{alpha}} for any constant {alpha}). The best previous simulation, due to Valiant, required {Theta}(lg n) expected delay.

  12. Regionalization and calibration of seismic discriminants, path effects and signal-to-noise for station ABKT (Alibek, Turkmenistan)

    SciTech Connect (OSTI)

    Rodgers, A.J.; Walter, W.R.

    1997-07-01

    We report measurements and analysis of regional seismic phase amplitude ratios and signal-to-noise for earthquakes observed at the International Monitoring System primary station ABKT (Alibek, Turkmenistan). We measured noise and phase amplitudes of the regional phases Pn, Pg, Sn, and Lg in four frequency bands between 0.75-9.0 Hz. Measurements were made in both the time and frequency domains. The spatial variation of amplitude ratios (e.g., Pn/Lg, Pg/Lg, Pn/Sn, Pg/Sn) and signal-to-noise (phase/noise) reveal significant path effect differences between the Hindu Kush, Kazahk Platform, Iranian Plateau and Caspian Sea. In order to represent this behavior, we have investigated several techniques for characterizing the data. These techniques are: 1) correlation with along-path distance and waveguide properties; 2) sector analysis; and 3) spatial averaging. Along-path waveguide properties, such as mean elevation and rms topographic slope are found to be the strongest factors related to Pg/Lg amplitude ratios at the lowest frequencies (<3.0 Hz). Other path properties such as mean crustal thickness and basement depth are not strongly correlated with Pg/Lg ratios. For sector analysis we divided the data into four (4) azimuthal sectors and characterized the data within each sector by a distance trend. Sectors were chosen based on the behavior of Pn/Lg, Pg/Lg and Pn/Sn amplitude ratios as well as topographic and tectonic character. Results reveal significant reduction (up to a factor of two) in the scatter of the Pn/Lg and Pg/Lg amplitude ratios for the sectorized data compared to the entire data set from all azimuths. Spatial averaging involves smoothing and interpolation for the ratios projected at the event location. Methods such as cap averaging and kriging will be presented at the meeting. 7 refs., 6 figs.

  13. Carbon Sequestration in Reclaimed Mined Soils of Ohio

    SciTech Connect (OSTI)

    K. Lorenz; R. Lal

    2007-12-31

    This research project was aimed at assessing the soil organic carbon (SOC) sequestration potential of reclaimed minesoils (RMS). The experimental sites were characterized by distinct age chronosequences of RMS and were located in Guernsey, Morgan, Noble, and Muskingum Counties of Ohio. Restoration of disturbed land is followed by the application of nutrients to the soil to promote the vegetation development. Reclamation is important both for preserving the environmental quality and increasing agronomic yields. Since reclamation treatments have significant influence on the rate of soil development, a study on subplots was designed with the objectives of assessing the potential of different biosolids on soil organic C (SOC) sequestration rate, soil development, and changes in soil physical and water transmission properties. All sites are owned and maintained by American Electric Power (AEP). These sites were reclaimed by two techniques: (1) with topsoil application, and (2) without topsoil application, and were under continuous grass or forest cover.

  14. Protein structure and hydration probed by SANS and osmotic stress

    SciTech Connect (OSTI)

    Rau, Dr. Donald [National Institutes of Health

    2008-01-01

    Interactions governing protein folding, stability, recognition, and activity are mediated by hydration. Here, we use small-angle neutron scattering coupled with osmotic stress to investigate the hydration of two proteins, lysozyme and guanylate kinase (GK), in the presence of solutes. By taking advantage of the neutron contrast variation that occurs upon addition of these solutes, the number of protein-associated (solute-excluded) water molecules can be estimated from changes in both the zero-angle scattering intensity and the radius of gyration. Poly(ethylene glycol) exclusion varies with molecular weight. This sensitivity can be exploited to probe structural features such as the large internal GK cavity. For GK, small-angle neutron scattering is complemented by isothermal titration calorimetry with osmoticstress to also measure hydration changes accompanying ligand binding. These results provide a framework for studying other biomolecular systems and assemblies using neutron scattering together with osmotic stress.

  15. Department of Energy to Take Steps to Remove ENERGY STAR Label...

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

    As a result, effective January 2, 2010, certain LG French-door refrigerators are no longer eligible to carry the ENERGY STAR label. ENERGY STAR is a voluntary program sponsored ...

  16. Vehicle Technologies Office Merit Review 2015: A 12V Start-Stop Li Polymer Battery Pack

    Broader source: Energy.gov [DOE]

    Presentation given by LG Chem Power at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about A 12V start-stop Li polymer...

  17. CX-011082: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    SECA Coal Based Systems- LG Fuel Cell Systems CX(s) Applied: B3.6 Date: 08/27/2013 Location(s): Ohio Offices(s): National Energy Technology Laboratory

  18. CX-011084: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    SECA Coal Based Systems- LG Fuel Cell Systems CX(s) Applied: B3.6 Date: 08/27/2013 Location(s): CX: none Offices(s): National Energy Technology Laboratory

  19. CX-011083: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    SECA Coal Based Systems- LG Fuel Cell Systems CX(s) Applied: B3.6 Date: 08/27/2013 Location(s): Ohio Offices(s): National Energy Technology Laboratory

  20. Media Conference Call Advisory: U.S. Department of Energy's Argonne...

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

    Laboratory, General Motors and LG Chem plan to make an announcement about advanced lithium-ion battery technology for electrified vehicles. At 2:30 p.m., ET on Thursday,...

  1. Microsoft Word - 3m NIM paperv3a.doc

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

    poly-vinylidenefluoride with trifluoroethylene. PACS: 87.61.Ff, 87.64.Lg, 63.20.Kr Key words: high resolution photoemission, phonon-electron interactions, Franck-Condon...

  2. Energy Media Advisories | Department of Energy

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

    Thursday, January 6, 2011, DOE Acting Under Secretary Cathy Zoi; Argonne Lab's Director Eric Issacs; GM Ventures President, Jon Lauckner; and LG Chem Power Inc.'s Mohamed Alamgir,...

  3. Enforcement News | Department of Energy

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

    January 19, 2010 U.S. District Court Upholds DOE's Action Against LG to Enforce ENERGY STAR Requirements Washington, D.C. - On Monday, the United States District Court for the...

  4. ARM - Datastreams - kazrspeccmaskgecopol

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

    port up deg roll ( time ) Signal-to-noise ratio dB signaltonoiseratio ( time, range ) Radar Doppler Spectra 10 lg(re 1 mW) spectra ( numspectra, speclength ) Radar Doppler...

  5. CX-012514: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Improved Reliability of Solid Oxide Fuel Cell Systems – LG Fuel Cell Systems CX(s) Applied: B3.6Date: 41848 Location(s): OhioOffices(s): National Energy Technology Laboratory

  6. EERE Success Story-Battery Cathode Developed by Argonne Powers...

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

    Both the original and next-generation Chevrolet Volt use batteries with this technology, as well as the Ford Focus EV. In fact, LG Chem has further improved on this chemistry for ...

  7. Photo Gallery

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

    assetsimagesmediaphoto-gallerywebP1186612-lg.jpg" target"blank">Download hi-res image
    Direct Link

    Master...

  8. BPA-2012-01885-FOIA Request

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

    OUT DATE: L()G c 9 COLUMBIA RESEARCH CORPORATION P.O. Box 99249 * Seattle, Washington 98139 * Phone (206) 285-1185 * email: seligman48@seanet.com September 10, 2012 RECEIVED BY...

  9. EERE Success Story-NREL Partners with Google in Little Box Challenge...

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

    ... to Hawaii's Electric Grid Douglas Hitching (left), CEO of Silicon Solar Solutions and Henry Chung, LG, talk during a one-on-one networking session at the National Renewable Energy ...

  10. Gulfsands Petroleum | Open Energy Information

    Open Energy Info (EERE)

    Petroleum Address: 2-4 Cork Street Place: London, United Kingdom Zip: W1S 3LG Product: oil and gas exploration and production Phone Number: +44 20 7434 60 60 Website:...

  11. E ON | Open Energy Information

    Open Energy Info (EERE)

    ON Jump to: navigation, search Name: E ON Address: E ON UK plc Westwood Way Westwood Business Park Place: Coventry Zip: CV4 8LG Region: United Kingdom Sector: Marine and...

  12. ft. n. Both, Ohtef, RarourQb DWrion,Oak Ridgo

    Office of Legacy Management (LM)

    P. Morgan, Aar' t, Pimotor; Produotlon Dirirloa, i BY00 sniwm OP Zr TBIDm 1 . It ir axpeat tbt 4alivery of @air wteri8.l will be maa on orbaforo leptcmwrl, lg4g. Idantifioatioii ...

  13. A possibility for using an APPLE undulator to generate a photon beam with transverse optical modes.

    SciTech Connect (OSTI)

    Sasaki, S.; McNulty, I.; Shimada, T.; JAEA

    2008-01-01

    We investigate use of an APPLE-type undulator for generating Laguerre-Gaussian (LG) and Hermite-Gaussian (HG) mode beams. We find that the second harmonic radiation in the circular mode corresponds to an LG beam with l=1, and the second harmonic in the linear mode corresponds to an HG beam with l=1. The combination of an APPLE undulator and conventional monochromator optics may provide an opportunity for a new type of experimental research in the synchrotron radiation community.

  14. Long-Gradient Separations Coupled with Selected Reaction Monitoring for Highly Sensitive, Large Scale Targeted Protein Quantification in a Single Analysis

    SciTech Connect (OSTI)

    Shi, Tujin; Fillmore, Thomas L.; Gao, Yuqian; Zhao, Rui; He, Jintang; Schepmoes, Athena A.; Nicora, Carrie D.; Wu, Chaochao; Chambers, Justin L.; Moore, Ronald J.; Kagan, Jacob; Srivastava, Sudhir; Liu, Alvin Y.; Rodland, Karin D.; Liu, Tao; Camp, David G.; Smith, Richard D.; Qian, Weijun

    2013-10-01

    Long-gradient separations coupled to tandem MS were recently demonstrated to provide a deep proteome coverage for global proteomics; however, such long-gradient separations have not been explored for targeted proteomics. Herein, we investigate the potential performance of the long-gradient separations coupled with selected reaction monitoring (LG-SRM) for targeted protein quantification. Direct comparison of LG-SRM (5 h gradient) and conventional LC-SRM (45 min gradient) showed that the long-gradient separations significantly reduced background interference levels and provided an 8- to 100-fold improvement in LOQ for target proteins in human female serum. Based on at least one surrogate peptide per protein, an LOQ of 10 ng/mL was achieved for the two spiked proteins in non-depleted human serum. The LG-SRM detection of seven out of eight endogenous plasma proteins expressed at ng/mL or sub-ng/mL levels in clinical patient sera was also demonstrated. A correlation coefficient of >0.99 was observed for the results of LG-SRM and ELISA measurements for prostate-specific antigen (PSA) in selected patient sera. Further enhancement of LG-SRM sensitivity was achieved by applying front-end IgY14 immunoaffinity depletion. Besides improved sensitivity, LG-SRM offers at least 3 times higher multiplexing capacity than conventional LC-SRM due to ~3-fold increase in average peak widths for a 300-min gradient compared to a 45-min gradient. Therefore, LG-SRM holds great potential for bridging the gap between global and targeted proteomics due to its advantages in both sensitivity and multiplexing capacity.

  15. An improved criterion for new particle formation in diverse environments

    SciTech Connect (OSTI)

    Kuang, C.; Riipinen, I.; Sihto, S.-L.; Kulmala, M.; McCormick, A.; McMurry, P.

    2010-03-15

    A dimensionless theory for new particle formation (NPF) was developed, using an aerosol population balance model incorporating recent developments in nucleation rates and measured particle growth rates. Based on this theoretical analysis, it was shown that a dimensionless parameter Lg, characterizing the ratio of the particle scavenging loss rate to the particle growth rate, exclusively determined whether or not NPF would occur on a particular day. This parameter determines the probability that a nucleated particle will grow to a detectable size before being lost by coagulation with the pre-existing aerosol. Cluster-cluster coagulation was shown to contribute negligibly to this survival probability under conditions pertinent to the atmosphere. Data acquired during intensive measurement campaigns in Tecamac (MILAGRO), Atlanta (ANARChE), Boulder, and Hyytiala (QUEST II, QUEST IV, and EUCAARI) were used to test the validity of Lg as an NPF criterion. Measurements included aerosol size distributions down to 3 nm and gas-phase sulfuric acid concentrations. The model was applied to 77 NPF events and 19 non-events (characterized by growth of pre-existing aerosol without NPF) measured in diverse environments with broad ranges in sulfuric acid concentrations, ultrafine number concentrations, aerosol surface areas, and particle growth rates (nearly two orders of magnitude). Across this diverse data set, a nominal value of Lg = 0.7 was found to determine the boundary for the occurrence of NPF, with NPF occurring when Lg < 0.7 and being suppressed when Lg > 0.7. Moreover, nearly 45% of measured Lg values associated with NPF fell in the relatively narrow range of 0.1 < Lg < 0.3.

  16. Phonons with orbital angular momentum

    SciTech Connect (OSTI)

    Ayub, M. K.; Ali, S.; Mendonca, J. T.

    2011-10-15

    Ion accoustic waves or phonon modes are studied with orbital angular momentum (OAM) in an unmagnetized collissionless uniform plasma, whose constituents are the Boltzmann electrons and inertial ions. For this purpose, we have employed the fluid equations to obtain a paraxial equation in terms of ion density perturbations and discussed its Gaussian beam and Laguerre-Gauss (LG) beam solutions. Furthermore, an approximate solution for the electrostatic potential problem is presented, allowing to express the components of the electric field in terms of LG potential perturbations. The energy flux due to phonons is also calculated and the corresponding OAM is derived. Numerically, it is shown that the parameters such as azimuthal angle, radial and angular mode numbers, and beam waist, strongly modify the profiles of the phonon LG potential. The present results should be helpful in understanding the phonon mode excitations produced by Brillouin backscattering of laser beams in a uniform plasma.

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

    SciTech Connect (OSTI)

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

    2014-06-15

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

  18. The lithium abundances of a large sample of red giants

    SciTech Connect (OSTI)

    Liu, Y. J.; Tan, K. F.; Wang, L.; Zhao, G.; Li, H. N.; Sato, Bun'ei; Takeda, Y. E-mail: gzhao@nao.cas.cn

    2014-04-20

    The lithium abundances for 378 G/K giants are derived with non-local thermodynamic equilibrium correction considered. Among these are 23 stars that host planetary systems. The lithium abundance is investigated, as a function of metallicity, effective temperature, and rotational velocity, as well as the impact of a giant planet on G/K giants. The results show that the lithium abundance is a function of metallicity and effective temperature. The lithium abundance has no correlation with rotational velocity at v sin i < 10 km s{sup –1}. Giants with planets present lower lithium abundance and slow rotational velocity (v sin i < 4 km s{sup –1}). Our sample includes three Li-rich G/K giants, 36 Li-normal stars, and 339 Li-depleted stars. The fraction of Li-rich stars in this sample agrees with the general rate of less than 1% in the literature, and the stars that show normal amounts of Li are supposed to possess the same abundance at the current interstellar medium. For the Li-depleted giants, Li-deficiency may have already taken place at the main sequence stage for many intermediate mass (1.5-5 M {sub ☉}) G/K giants. Finally, we present the lithium abundance and kinematic parameters for an enlarged sample of 565 giants using a compilation of the literature, and confirm that the lithium abundance is a function of metallicity and effective temperature. With the enlarged sample, we investigate the differences between the lithium abundance in thin-/thick-disk giants, which indicate that the lithium abundance in thick-disk giants is more depleted than that in thin-disk giants.

  19. A Simple and Efficient Methodology To Improve Geometric Accuracy in Gamma Knife Radiation Surgery: Implementation in Multiple Brain Metastases

    SciTech Connect (OSTI)

    Karaiskos, Pantelis; Moutsatsos, Argyris; Pappas, Eleftherios; Georgiou, Evangelos; Roussakis, Arkadios; Torrens, Michael; Seimenis, Ioannis

    2014-12-01

    Purpose: To propose, verify, and implement a simple and efficient methodology for the improvement of total geometric accuracy in multiple brain metastases gamma knife (GK) radiation surgery. Methods and Materials: The proposed methodology exploits the directional dependence of magnetic resonance imaging (MRI)-related spatial distortions stemming from background field inhomogeneities, also known as sequence-dependent distortions, with respect to the read-gradient polarity during MRI acquisition. First, an extra MRI pulse sequence is acquired with the same imaging parameters as those used for routine patient imaging, aside from a reversal in the read-gradient polarity. Then, “average” image data are compounded from data acquired from the 2 MRI sequences and are used for treatment planning purposes. The method was applied and verified in a polymer gel phantom irradiated with multiple shots in an extended region of the GK stereotactic space. Its clinical impact in dose delivery accuracy was assessed in 15 patients with a total of 96 relatively small (<2 cm) metastases treated with GK radiation surgery. Results: Phantom study results showed that use of average MR images eliminates the effect of sequence-dependent distortions, leading to a total spatial uncertainty of less than 0.3 mm, attributed mainly to gradient nonlinearities. In brain metastases patients, non-eliminated sequence-dependent distortions lead to target localization uncertainties of up to 1.3 mm (mean: 0.51 ± 0.37 mm) with respect to the corresponding target locations in the “average” MRI series. Due to these uncertainties, a considerable underdosage (5%-32% of the prescription dose) was found in 33% of the studied targets. Conclusions: The proposed methodology is simple and straightforward in its implementation. Regarding multiple brain metastases applications, the suggested approach may substantially improve total GK dose delivery accuracy in smaller, outlying targets.

  20. Differential dose volume histograms of Gamma Knife in the presence of inhomogeneities using MRI-polymer gel dosimetry and MC simulation

    SciTech Connect (OSTI)

    Allahverdi Pourfallah, Tayyeb; Allahverdi, Mahmoud; Riahi Alam, Nader; Ay, Mohammad-Reza; Zahmatkesh, Mohammad-Hasan

    2009-07-15

    Polymer gel dosimeters offer a practical solution to 3D dose verification for conventional radiotherapy as well as intensity-modulated and stereotactic radiotherapy. In this study, EGSnrc calculated and PAGAT polymer gel dosimeter measured dose volume histograms (DVHs) for single-shot irradiations of the Gamma Knife (GK) unit were used to investigate the effects of the presence of inhomogeneities on 3D dose distribution. The head phantom was a custom-built 16 cm diameter Plexiglas sphere. Inside the phantom, there is a cubic cutout for inserting the gel vials and another cutout for inserting the inhomogeneities. Following irradiation with the GK unit, the polymer gel phantoms were scanned with a 1.5 T MRI scanner. Comparing the results of measurement in homogeneous and heterogeneous phantoms revealed that inserting inhomogeneities inside the homogeneous phantom did not cause considerable disturbances on dose distribution in irradiation with 8 mm collimator within low isodose levels (<50%), which is essential for the dose sparing of sensitive structures. The results of simulation for homogeneous and inhomogeneous phantoms in irradiation with 18 mm collimator of the GK unit showed 23.24% difference in DVH within 90%-100% relative isodose level and also revealed that a significant part of the target (28.56%) received relative doses higher than the maximum dose, which exceeds the acceptance criterion (5%). Based on these results it is concluded that the presence of inhomogeneities inside the phantom can cause considerable errors in dose calculation within high isodose levels with respect to LGP prediction which assumes that the target is a homogeneous material. Moreover, it is demonstrated that the applied MC code is an accurate and stand-alone tool for 3D evaluation of dose distribution in irradiation with the GK unit, which can provide important, 3D plan evaluation criteria used in clinical practice.

  1. Simulation and control of a HD diesel engine equipped with new EGR technology

    SciTech Connect (OSTI)

    Dekker, H.J.; Sturm, W.L.

    1996-09-01

    A dynamic model of a Heavy Duty (HD) turbocharged and aftercooled diesel engine was developed. The engine was equipped with high pressure diesel injection, a Variable Geometry Turbine (VGT) and an Exhaust Gas Recirculation (EGR) system. This engine was targeted at meeting EURO4 emission requirements. The final emission results were 2.4 g/k Wh NO{sub x} and 0.107 g/kWh particulates for the European 13 mode test. Better than 3.0 g/k Wh NO{sub x} and 0.10 g/k Wh particulates are expected to be characteristic EURO4 emission requirements (approximate year of implementation is 2004). In the design of the EGR system the model provided initial assessments of the properties of this system. Associated engine and turbocharger behavior as well as optimal control strategies were predicted. A transient engine control algorithm was developed using the dynamic engine model. The VGT is closed loop controlled and EGR is shut off during a short time after a load increase. The simulation results were confirmed by actual measurements, demonstrating acceptable transient behavior.

  2. Buildings Energy Data Book: 5.7 Appliances

    Buildings Energy Data Book [EERE]

    1 2008 Microwave Oven Manufacturer Market Shares (Percent of Products Produced) Company Market Share (%) LG Electronics (Goldstar) 33% Sharp 15% Samsung 15% Daewoo 7% Matsushita 10% Whirlpool 3% Sanyo 9% Others 8% Total 100% Source(s): Total Units Shipped: 11,340,000

  3. Buildings Energy Data Book: 5.7 Appliances

    Buildings Energy Data Book [EERE]

    8 2008 Clothes Washer Manufacturer Market Shares (Percent of Products Produced) Company Market Share (%) Whirlpool 64% Maytag (1) GE 16% Electrolux (Frigidaire) 6% LG Electronics 6% Others 8% Total 100% Note(s): Source(s): Total Units Shipped: 8,292

  4. {sup 31}P NMR study of the complexation of TBP with lanthanides and actinides in solution and in a clay matrix

    SciTech Connect (OSTI)

    Hartzell, C.J.

    1994-07-24

    Goal was to use NMR to study TBP/lanthanide complexes in the interlayer or on edge sites of clays. Work in this laboratory yielded details of the complexation of Eu(NO{sub 3}){sub 3} and Pr(NO{sub 3}){sub 3} with TBP in hexane solution; this information is crucial to interpretation of results of NMR studies of the complexes exchanged into clays. The solution {sup 31}P-chemical shift values were improved by repeating the studies on the lanthanide salts dissolved directly into neat TBP. NMR studies of these neat solutions of the Eu(NO{sub 3}){sub 3}{lg_bullet}3TBP-complex and the Pr(NO{sub 3}){sub 3}{lg_bullet}3TBP-complex show that the {sup 31}P chemical shift remains relatively constant for TBP: lanthanide ratios below 3: 1. At higher ratios, the chemical shift approaches that of free TBP, indicating rapid exchange of TBP between the free and complexed state. Exchange of these complexes into the clay hectorite yielded discrete {sup 31}P-NMR signals for the Eu{lg_bullet}TBP complex at -190 ppm and free TBP at -6 ppm. Adsorption of the Pr{lg_bullet}TBP complex yielded broad signals at 76 ppm for the complex and -6 ppm for free TBP. There was no evidence of exchange between the incorporated complex and the free TBP.

  5. CX-007656: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Operation of Extrel MAX300LG Mass Spectrometer and VICI Metronics Dynacalibrator Calibration Gas Generator at 999-1W CX(s) Applied: B3.6 Date: 11/30/2011 Location(s): South Carolina Offices(s): Savannah River Operations Office

  6. Vehicle Technologies Office Merit Review 2013: A High-Performance PHEV Battery Pack

    Broader source: Energy.gov [DOE]

    Presentation given by LG Chem at 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting about a high-performance battery pack the company is researching for plug-in electric vehicles.

  7. Utility Advanced Turbine Systems Program (ATS) Technical Readiness Testing and Pre-Commercial Demonstration

    SciTech Connect (OSTI)

    Siemens Westinghouse

    2000-12-31

    The objective of the ATS program is to develop ultra-high efficiency, environmentally superior and cost competitive gas turbine systems for base load application in utility, independent power producer and industrial markets. Specific performance targets have been set using natural gas as the primary fuel: {lg_bullet} System efficiency that will exceed 60%(lower heating value basis) on natural gas for large scale utility turbine systems; for industrial applications, systems that will result in a 15% improvement in heat rate compared to currently available gas turbine systems. {lg_bullet} An environmentally superior system that will not require the use of post combustion emissions controls under full load operating conditions. {lg_bullet} Busbar energy costs that are 10% less than current state-of-the-art turbine systems, while meeting the same environmental requirements. {lg_bullet} Fuel-flexible designs that will operate on natural gas but are capable of being adapted to operate on coal-derived or biomass fuels. {lg_bullet} Reliability-Availability-Maintainability (RAM) that is equivalent to the current turbine systems. {lg_bullet} Water consumption minimized to levels consistent with cost and efficiency goals. {lg_bullet} Commercial systems that will enter the market in the year 2000. In Phase I of the ATS program, Siemens Westinghouse found that efficiency significantly increases when the traditional combined-cycle power plant is reconfigured with closed-loop steam cooling of the hot gas path. Phase II activities involved the development of a 318MW natural gas fired turbine conceptual design with the flexibility to burn coal-derived and biomass fuels. Phases I and II of the ATS program have been completed. Phase III, the current phase, completes the research and development activities and develops hardware specifications from the Phase II conceptual design. This report summarizes Phase III extension activities for a three month period. Additional details may be found in monthly technical progress reports covering the period stated on the cover of this report. Background information regarding the work to be completed in Phase III may be found in the revised proposal submitted in response to A Request for Extension of DE-FC21-95MC32267, dated May 29, 1998 and the Continuing Applications of DE-FC21-95MC32267, dated March 31, 1999 and November 19, 1999.

  8. Carbon Sequestration in Reclaimed Mined Soils of Ohio

    SciTech Connect (OSTI)

    M.K. Shukla; K. Lorenz; R. Lal

    2006-01-01

    Assessment of soil organic carbon (SOC) sequestration potential of reclaimed minesoils (RMS) is important for preserving environmental quality and increasing agronomic yields. The mechanism of physical SOC sequestration is achieved by encapsulation of SOC in spaces within macro and microaggregates. The experimental sites, owned and maintained by American Electrical Power, were characterized by distinct age chronosequences of reclaimed minesoils and were located in Guernsey, Morgan, Noble, and Muskingum Counties of Ohio. These sites were reclaimed both with and without topsoil application, and were under continuous grass or forest cover. In this report results are presented from the sites reclaimed in 1994 (R94-F), in 1987 (R87-G), in 1982 (R82-F), in 1978 (R78-G), in 1969 (R69-F), in1956 (R56-G), and from the unmined control (UMS-G). Three sites are under continuous grass cover and three under forest cover since reclamation. The samples were air dried and fractionated using a wet sieving technique into macro (> 2.0 mm), meso (0.25-2.0 mm) and microaggregates (0.053-0.25 mm). The soil C and N concentrations were determined by the dry combustion method on these aggregate fractions. Soil C and N concentrations were higher at the forest sites compared to the grass sites in each aggregate fraction for both depths. Statistical analyses indicated that the number of random samples taken was probably not sufficient to properly consider distribution of SOC and TN concentrations in aggregate size fractions for both depths at each site. Erosional effects on SOC and TN concentrations were, however, small. With increasing time since reclamation, SOC and total nitrogen (TN) concentrations also increased. The higher C and N concentrations in each aggregate size fraction in older than the newly reclaimed sites demonstrated the C sink capacity of newer sites.

  9. LOCKHEED MARTIN Contract No. DE-ACO3-91 SF18852

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

    LOCKHEED MARTIN Contract No. DE-ACO3-91 SF18852 DoV5 88 5a--T9 7 RECEIVED DEC 29 1998 OSTI LOCKHEED MARTIN ASTRONAUTICS GPHS - RTGs In Support of the Cassini RTG Program DISTRIBUTION Of MIS DOCUMENT IS uNumrrEo gk .\ Final Technical Report Document No. RR18 11 January 1991 through 30 April 1998 August 1998 MASTER Space Power Programs DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any

  10. Buildings Energy Data Book: 5.7 Appliances

    Buildings Energy Data Book [EERE]

    6 2008 Room Air Conditioner Manufacturer Market Shares (Percent of Products Produced) Company Market Share (%) LG Electronics (Goldstar) 32% Fedders 12% Electrolux (Frigidaire) 13% Whirlpool 13% Haier 8% Samsung 5% Sharp 4% Friedrich 4% UTC/Carrier 3% Matsushita 2% Others 4% Total 100% Source(s): Total Units Shipped: 9,085,500 Appliance Magazine, U.S. Appliance Industry: Market Share, Life Expectancy & Replacement Market, and Saturation Levels, January 2010, p. 5

  11. THE KINEMATICS OF THE LOCAL GROUP IN A COSMOLOGICAL CONTEXT

    SciTech Connect (OSTI)

    Forero-Romero, J. E.; Hoffman, Y.; Bustamante, S.; Gottloeber, S.; Yepes, G.

    2013-04-10

    Recent observations constrained the tangential velocity of M31 with respect to the Milky Way to be v{sub M31,tan} < 34.4 km s{sup -1}and the radial velocity to be in the range v{sub M31,rad} = -109 {+-} 4.4 km s{sup -1}. In this study we use a large volume high-resolution N-body cosmological simulation (Bolshoi) together with three constrained simulations to statistically study this kinematics in the context of the {Lambda} cold dark matter ({Lambda}CDM). The comparison of the ensembles of simulated pairs with the observed Local Group (LG) at the 1{sigma} level in the uncertainties has been done with respect to the radial and tangential velocities, the reduced orbital energy (e{sub tot}), angular momentum (l{sub orb}), and the dimensionless spin parameter, {lambda}. Our main results are (1) the preferred radial and tangential velocities for pairs in {Lambda}CDM are v{sub r} = -80 {+-} 20 km s{sup -1} and v{sub t} = 50 {+-} 10 km s{sup -1}, (2) pairs around that region are 3-13 times more common than pairs within the observational values, (3) 15%-24% of LG-like pairs in {Lambda}CDM have energy and angular momentum consistent with observations, while (4) 9%-13% of pairs in the same sample show similar values in the inferred dimensionless spin parameter. It follows that within current observational uncertainties the quasi-conserved quantities that characterize the orbit of the LG, i.e., e{sub tot}, l{sub orb}, and {lambda}, do not challenge the standard {Lambda}CDM model, but the model is in tension with regard to the actual values of the radial and tangential velocities. This might hint to a problem of the {Lambda}CDM model to reproduce the observed LG.

  12. Laser stimulated emission cross sections of Nd glasses

    SciTech Connect (OSTI)

    Tucker, A.W.; Birnbaum, M.; Fincher, C.L.

    1982-01-01

    A laser-comparison method was used to determine the emission cross sections at 1060 nm of Nd glasses used in laser fusion systems. The values obtained for two phosphate glasses (LHG-8) and (Q-88) were 4.0 +- 0.8 x 10/sup -20/ cm/sup 2/ and 1.7 +- 0.5 x 10/sup -20/ cm/sup 2/ for a silicate glass (LG-650).

  13. U.S. Manufacturing Energy Use and Greenhouse Gas Emissions Analysis |

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

    Department of Energy Manufacturing Energy Use and Greenhouse Gas Emissions Analysis U.S. Manufacturing Energy Use and Greenhouse Gas Emissions Analysis thumb_energyuse_loss_emissions_lg.gif How effectively is energy used in U.S. manufacturing? How much greenhouse gas (GHG) is emitted from combustion in manufacturing operations? The U.S. Manufacturing Energy Use and Greenhouse Gas Emissions Analysis from the Oak Ridge National Laboratory traces energy from supply (fuel, electricity, and

  14. Argonne ARPA-E Battery Research

    SciTech Connect (OSTI)

    Amine, Khalil; Sinkula, Michael

    2011-01-01

    Argonne National Laboratory and Envia Systems annouced a licensing agreement for Argonne's patented electrode material technology. Envia plans to commercialize these materials for use in energy storage devices for the next generation of electric, plug-in and hybrid electric vehicles. General Motors Company, LG Chem, BASF and Toda Kyoga have also licensed this suite of Argonne's technologies. For more information visit us at http://www.anl.gov

  15. On the recovery of the local group motion from galaxy redshift surveys

    SciTech Connect (OSTI)

    Nusser, Adi; Davis, Marc; Branchini, Enzo E-mail: mdavis@berkeley.edu

    2014-06-20

    There is an ?150 km s{sup 1} discrepancy between the measured motion of the Local Group (LG) of galaxies with respect to the cosmic microwave background and the linear theory prediction based on the gravitational force field of the large-scale structure in full-sky redshift surveys. We perform a variety of tests which show that the LG motion cannot be recovered to better than 150-200 km s{sup 1} in amplitude and within ?10 in direction. The tests rely on catalogs of mock galaxies identified in the Millennium simulation using semi-analytic galaxy formation models. We compare these results to the K{sub s} = 11.75 Two-Mass Galaxy Redshift Survey, which provides the deepest and most complete all-sky spatial distribution of galaxies with spectroscopic redshifts available thus far. In our analysis, we use a new concise relation for deriving the LG motion and bulk flow from the true distribution of galaxies in redshift space. Our results show that the main source of uncertainty is the small effective depth of surveys like the Two-Mass Redshift Survey (2MRS), which prevents a proper sampling of the large-scale structure beyond ?100 h {sup 1} Mpc. Deeper redshift surveys are needed to reach the 'convergence scale' of ?250 h {sup 1} Mpc in a ?CDM universe. Deeper surveys would also mitigate the impact of the 'Kaiser rocket' which, in a survey like 2MRS, remains a significant source of uncertainty. Thanks to the quiet and moderate density environment of the LG, purely dynamical uncertainties of the linear predictions are subdominant at the level of ?90 km s{sup 1}. Finally, we show that deviations from linear galaxy biasing and shot noise errors provide a minor contribution to the total error budget.

  16. Special Report: OAS-RA-13-10 | Department of Energy

    Energy Savers [EERE]

    Special Report: OAS-RA-13-10 Special Report: OAS-RA-13-10 February 8, 2013 The Department of Energy's Management of the Award of a $150 Million Recovery Act Grant to LG Chem Michigan Inc The Department of Energy's Vehicle Technologies Program was established to develop and deploy efficient and environmentally friendly highway transportation technologies to reduce the Nation's dependence on foreign oil and provide greater energy security. The Vehicle Technologies Program received $2.4 billion

  17. Ex Parte Memo_September 25, 2013_RF TP Comments (00019688).DOC

    Energy Savers [EERE]

    AHAM's written comments on DOE's Notice of Proposed Rulemaking on Test Procedures for Refrigerators, Refrigerator-Freezers, and Freezers, Docket No. EERE-2012-BT-TP-0016, RIN 1904-AC76. The attendees were as follows: Lucas Adin, DOE Abigail B. Chingos, DOE Michael Kido, DOE Detlef Westphalen, Navigant Jennifer Cleary, AHAM Mark Drake, Electrolux Home Products (phone) Bill Brown, GE Appliances (phone) Maxwell Wilband, LG Electronics USA

  18. Special Report: OAS-RA-13-10 | Department of Energy

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

    13-10 Special Report: OAS-RA-13-10 February 8, 2013 The Department of Energy's Management of the Award of a $150 Million Recovery Act Grant to LG Chem Michigan Inc The Department of Energy's Vehicle Technologies Program was established to develop and deploy efficient and environmentally friendly highway transportation technologies to reduce the Nation's dependence on foreign oil and provide greater energy security. The Vehicle Technologies Program received $2.4 billion under the American

  19. Microsoft Word - Loan Guarantee Solicitation _final_ 8-14-06.doc

    Energy Savers [EERE]

    SOLICITATION ANNOUNCEMENT U.S. Department of Energy Loan Guarantee Program Office FEDERAL LOAN GUARANTEES FOR PROJECTS THAT EMPLOY INNOVATIVE TECHNOLOGIES IN SUPPORT OF THE ADVANCED ENERGY INITIATIVE Solicitation Number: DE-PS01-06LG00001 OMB Control Number: 1910-5129 Announcement Type: Initial Issue Date: August 8, 2006 Pre-Application Due Date: November 6, 2006 ii TABLE OF CONTENTS PART I - LOAN GUARANTEE SOLICITATION DESCRIPTION ................................................. 1 A. GENERAL

  20. Argonne ARPA-E Battery Research

    ScienceCinema (OSTI)

    Amine, Khalil; Sinkula, Michael

    2013-04-19

    Argonne National Laboratory and Envia Systems annouced a licensing agreement for Argonne's patented electrode material technology. Envia plans to commercialize these materials for use in energy storage devices for the next generation of electric, plug-in and hybrid electric vehicles. General Motors Company, LG Chem, BASF and Toda Kyoga have also licensed this suite of Argonne's technologies. For more information visit us at http://www.anl.gov

  1. DOEs Effort to Reduce Truck Aerodynamic Drag through Joint Experiments

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

    PDF icon DOE_Gulf_Response.pdf More Documents & Publications Deepwater_Response.pdf UDAC Meeting - September 2012 April 30, 2010 Situation Report

    digitalsender PDF icon DOE_LG_Signed_Settlement_Agreement.pdf More Documents & Publications jrevSETTLEMENT0105.PDF&#0; Application for Presidental Permit OE Docket No. PP-230-4 International Transmission Company: Settlement Agreement Settlement Agreement, Sandia Corporation - SSA-2011-01

    and Computations | Department of Energy

  2. MODULAR CAUSTIC SIDE SOLVENT EXTRACTION UNIT GAMMA MONITORS SYSTEM FINAL REPORT

    SciTech Connect (OSTI)

    Casella, V

    2007-06-25

    The Department of Energy (DOE) selected Caustic-Side Solvent Extraction (CSSX) as the preferred technology for the removal of radioactive cesium from High-Level Waste (HLW) at the Savannah River Site (SRS). Before the full-scale Salt Waste Processing Facility (SWPF) becomes operational, the liquid Waste Organization (LWO) plans to process a portion of dissolved saltcake waste through a Modular CSSX Unit (MCU). This work was derived from Technical Task Request SP-TTR-2004-00013, ''Gamma Monitor for MCU.'' The deliverables for this task are the hardware and software for the gamma monitors and a report summarizing the testing and acceptance of this equipment for use in the MCU. Revision of this report is a deliverable in Technical Task Report SP-TTR-2006-00010, ''NaI Shield Box Testing.'' Gamma-ray monitors were developed to: {lg_bullet} Measure the Cs-137 concentration in the decontaminated salt solution before entering the DSS (Decontaminated Salt Solution) Hold Tank, {lg_bullet} Measure the Cs-137 concentration in the strip effluent before entering the Strip Effluent Hold Tank, {lg_bullet} Verify proper operation of the solvent extraction system by verifying material balance within the process (The DSS Hold Tank Cs-137 concentration will be very low and the Cs-137 concentration in the Strip Effluent Hold Tank will be approximately fifteen times higher than the Cs-137 concentration in the Feed Tank.)

  3. THE EFFECT OF ENVIRONMENT ON MILKY-WAY-MASS GALAXIES IN A CONSTRAINED SIMULATION OF THE LOCAL GROUP

    SciTech Connect (OSTI)

    Creasey, Peter; Scannapieco, Cecilia; Nuza, Sebastin E.; Gottlber, Stefan; Steinmetz, Matthias; Yepes, Gustavo

    2015-02-10

    In this Letter, we present, for the first time, a study of star formation rate (SFR), gas fraction, and galaxy morphology of a constrained simulation of the Milky Way (MW) and Andromeda (M31) galaxies compared to other MW-mass galaxies. By combining with unconstrained simulations, we cover a sufficient volume to compare these galaxies environmental densities ranging from the field to that of the Local Group (LG). This is particularly relevant as it has been shown that, quite generally, galaxy properties depend intimately upon their environment, most prominently when galaxies in clusters are compared to those in the field. For galaxies in loose groups such as the LG, however, environmental effects have been less clear. We consider the galaxys environmental density in spheres of 1200 kpc (comoving) and find that while environment does not appear to directly affect morphology, there is a positive trend with SFRs. This enhancement in star formation occurs systematically for galaxies in higher density environments, regardless whether they are part of the LG or in filaments. Our simulations suggest that the richer environment at megaparsec scales may help replenish the star-forming gas, allowing higher specific SFRs in galaxies such as the MW.

  4. TESTING OF TMR SAND MANTIS FINAL REPORT

    SciTech Connect (OSTI)

    Krementz, D; William Daugherty, W

    2007-06-12

    Screening tests of Sand Mantis candidate materials selected for erosion resistance have been completed. The results of this testing identified that over a relatively short period of operation (<1 hour), measurable erosion will occur in each of the candidate zoom tube materials given equal operating exposure. Additionally, this testing has shown that erosion of the rubber discharge hose directly downstream of the vehicle could be expected to limit the service life of the discharge hose. On the basis of these test results, SRNL recommends the following; {lg_bullet} redesign of critical system components (e.g., zoom tube, discharge hose) should be conducted to improve system characteristics relative to erosion and capitalize on the results of this testing, {lg_bullet} continued efforts to deploy the Sand Mantis should include testing to better define and optimize operating parameters, and gain an understanding of system dynamics, {lg_bullet} discontinue wear testing with the selected materials pending redesign of critical system components (1st recommendation) and inclusion of other candidate materials. The final selection of additional candidate materials should be made following design changes, but might include a Stellite alloy or zirconia.

  5. Re-evaluation of the 1995 Hanford Large Scale Drum Fire Test Results

    SciTech Connect (OSTI)

    Yang, J M

    2007-05-02

    A large-scale drum performance test was conducted at the Hanford Site in June 1995, in which over one hundred (100) 55-gal drums in each of two storage configurations were subjected to severe fuel pool fires. The two storage configurations in the test were pallet storage and rack storage. The description and results of the large-scale drum test at the Hanford Site were reported in WHC-SD-WM-TRP-246, ''Solid Waste Drum Array Fire Performance,'' Rev. 0, 1995. This was one of the main references used to develop the analytical methodology to predict drum failures in WHC-SD-SQA-ANAL-501, 'Fire Protection Guide for Waste Drum Storage Array,'' September 1996. Three drum failure modes were observed from the test reported in WHC-SD-WM-TRP-246. They consisted of seal failure, lid warping, and catastrophic lid ejection. There was no discernible failure criterion that distinguished one failure mode from another. Hence, all three failure modes were treated equally for the purpose of determining the number of failed drums. General observations from the results of the test are as follows: {lg_bullet} Trash expulsion was negligible. {lg_bullet} Flame impingement was identified as the main cause for failure. {lg_bullet} The range of drum temperatures at failure was 600 C to 800 C. This is above the yield strength temperature for steel, approximately 540 C (1,000 F). {lg_bullet} The critical heat flux required for failure is above 45 kW/m{sup 2}. {lg_bullet} Fire propagation from one drum to the next was not observed. The statistical evaluation of the test results using, for example, the student's t-distribution, will demonstrate that the failure criteria for TRU waste drums currently employed at nuclear facilities are very conservative relative to the large-scale test results. Hence, the safety analysis utilizing the general criteria described in the five bullets above will lead to a technically robust and defensible product that bounds the potential consequences from postulated fires in TRU waste facilities, the means of storage in which are the Type A, 55-gal drums.

  6. The bonding, charge distribution, spin ordering, optical, and elastic properties of four MAX phases Cr{sub 2}AX (A = Al or Ge, X = C or N): From density functional theory study

    SciTech Connect (OSTI)

    Li, Neng; Mo, Yuxiang; Ching, Wai-Yim

    2013-11-14

    In this work, we assess a full spectrum of properties (chemical bonding, charge distribution, spin ordering, optical, and elastic properties) of Cr{sub 2}AC (A = Al, Ge) and their hypothetical nitride counterparts Cr{sub 2}AN (A = Al, Ge) based on density functional theory calculations. The calculated total energy values indicate that a variety of spin ordering of these four compounds depending on interlayer-interactions between M-A and M-X within the sublattice, which is supported by bonding analysis. MAX phase materials are discovered to possess exotic magnetic properties which indicates that these materials could serve as promising candidates for novel layered magnetic materials for various electronic and spintronic applications. Further analysis of optical properties for two polarization vectors of Cr{sub 2}AX shows that the reflectivity is high in the visible-ultraviolet region up to ∼15 eV suggesting Cr{sub 2}AX as a promising candidate for use as a coating material. The elastic coefficients (C{sub ij}) and bulk mechanical properties [bulk modulus (K), shear modulus (G), Young's modulus (E), Poisson's ratio (η), and Pugh ratio (G/K)] of these four Cr{sub 2}AX compounds are also calculated and analyzed, which pave the way to predict or design new MAX phases that are less brittle or tougher by having a lower G/K value or higher η.

  7. CARBON SEQUESTRATION IN RECLAIMED MINED SOILS OF OHIO

    SciTech Connect (OSTI)

    M.K. Shukla; R. Lal

    2005-04-01

    Assessment of soil organic carbon (SOC) sequestration potential of reclaimed minesoils (RMS) is important for preserving environmental quality and increasing agronomic yields. The mechanism of physical SOC sequestration is achieved by encapsulation of SOM in spaces within macro and microaggregates. The experimental sites, owned and maintained by American Electrical Power, were characterized by distinct age chronosequences of reclaimed minesoils and were located in Guernsey, Morgan, Noble, and Muskingum Counties of Ohio. These sites were reclaimed both with and without topsoil application, and were under continuous grass or forest cover. In this report results are presented from the sites reclaimed in 2003 (R03-G), in 1973 (R73-F), in 1969 (R69-G), in 1962 (R62-G and R62-F) and in 1957 (R57-F). Three sites are under continuous grass cover and the three under forest cover since reclamation. Three bulk soil samples were collected from each site from three landscape positions (upper; middle, and lower) for 0-15 and 15-30 cm depths. The samples were air dried and using wet sieving technique were fractionated into macro (> 2mm), meso (2-0.25 mm) and microaggregate (0.25-0.053 mm). These fractions were weighted separately and water stable aggregation (WSA) and geometric mean (GMD) and mean weight (MWD) diameters of aggregates were obtained. The soil C and N concentrations were also determined on these aggregate fractions. Analysis of mean values showed that in general, WSA and MWD of aggregates increased with increasing duration since reclamation or age of reclaimed soil for all three landscape positions and two depths in sites under continuous grass. The forest sites were relatively older than grass sites and therefore WSA or MWD of aggregates did not show any increases with age since reclamation. The lower WSA in R57-F site than R73-F clearly showed the effect of soil erosion on aggregate stability. Higher aggregation and aggregate diameters in R73-F than R62-F and R57-F also showed the importance of reclamation with topsoil application on improving soil structure. Soil C and N concentrations were lowest for the site reclaimed in year 2003 in each aggregate fraction for both depths. The higher C and N concentrations each aggregate size fraction in older sites than the newly reclaimed site demonstrated the sequestration potential of younger sites.

  8. SunShot Grand Challenge | Department of Energy

    Energy Savers [EERE]

    Announces 24-Hour Solar Data Hackathon SunShot Announces 24-Hour Solar Data Hackathon May 8, 2014 - 11:45am Addthis SunShot will host a 24-hour solar data hackathon at the 2014 SunShot Grand Challenge Summit. Learn more over at the EERE blog and register here. Addthis Related Articles Douglas Hitching (left), CEO of Silicon Solar Solutions and Henry Chung, LG, talk during a one-on-one networking session at the National Renewable Energy Laboratory's Industry Growth Forum in 2012. The SunShot

  9. KENNECOTT COPPER CORPORATION

    Office of Legacy Management (LM)

    * ?a, a5 fF#LG 44 it .L &=d ,,*, " ~=iL.oeL~~ KENNECOTT COPPER CORPORATION 101 EAST 42.. STREET $7/$ ,2 : -$ NEW YORU 17, N. Y. AND KOPPERS COMPAN,Y, INC. KOppERS B",'o,,,,G PITTSBURGH 19. PA. Classification Officer, OR0 October ,30, l!% ?!r. S. R. Saptile, Mmagez Oak Ridge Operations Office II. S. Atomic Enerfg Comission P. 0. BOX R. Oak Ridge, Tennessee Attention; Hr. John It. Moore, Director Contract Dltisloa Subjects Addendum (A) to F~oposal for a Feed Materials Processing

  10. SECTION II. HEAVY ION REACTIONS

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

    II. HEAVY ION REACTIONS Dynamic Evolution and the Caloric Curve for Medium Mass Nuclei J. Cibor, R. Wada, K. Hagel, M. Lunardon, N. Marie, R. Alfaro, W. Shen, B. Xiao, Y. Zhao, J. Li, M. Murray, J.B. Natowitz, Z. Majka and P. Staszel Search for 5He Emission from Hot Compound Nuclei R. Charity and L.G. Sobotka for the Washington University, NSCL, Legnaro, Padova, TAMU Collaboration IMF Production in 64Zn + 58Ni at 35A-79A MeV R. Wada, K. Hagel, J. Cibor, J. Li, M. Murray, J.B. Natowitz, A. Ono

  11. Hacking Away at Soft Costs: 24-Hour Coding Event Focuses on Expanding Solar

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

    Market | Department of Energy Hacking Away at Soft Costs: 24-Hour Coding Event Focuses on Expanding Solar Market Hacking Away at Soft Costs: 24-Hour Coding Event Focuses on Expanding Solar Market May 7, 2014 - 2:45pm Addthis Douglas Hitching (left), CEO of Silicon Solar Solutions and Henry Chung, LG, talk during a one-on-one networking session at the National Renewable Energy Laboratory's Industry Growth Forum in 2012. The SunShot Initiative and the National Renewable Energy Laboratory are

  12. ft. n. Both, Ohtef, RarourQb DWrion,Oak Ridgo

    Office of Legacy Management (LM)

    _ ,' .' ft. n. Both, Ohtef, RarourQb DWrion,Oak Ridgo hwt 2% w9 s. P. Morgan, Aar' t, Pimotor; Produotlon Dirirloa, i BY00 sniwm! OP Zr T~BIDm 1 . It ir axpeat tbt 4alivery of @air wteri8.l will be maa on orbaforo leptcmwrl, lg4g. Idantifioatioii my&ml "2416" haa been wr@md to thlr ahip nent and all related dauuuentr, aat ma&or Watlr Br n&R 1 ::_,, : ; .,. . . . ,~,-,.", :;> .

  13. z

    Office of Legacy Management (LM)

    ,,:,z !8,!,. i ,OCT 2 8 1981 .., : $... . ,, .., ., ? conversation of October 14,.1981.~sb&ween Dr. My& A. Whitman regarding the collection of samples and infnm , to'verify the results of the decontamination effortc nf '1.. : asreported in their. final radioloalcal PIIIWW N ^- : .' ..' -:'.& dlSCUS& &ring the me&in; it DOE Headq&&~S on-Se$&&'i, lg& ;' . . ,'~ :~ ' with Dr. R. Wmveen. Mr. W. Smfth. and yourself, we concur wfth the'schedile of actfvftfes

  14. EV-13

    Office of Legacy Management (LM)

    ?a/71 2.z=' 1. lg EV-13 Notification of Xced for So!?e Form of Reoedial Action, in Ikyo Ca~;~op., Los Alanos, New Mexico s. lkycrs, HEI-90 4 EV/IXT has dctcrnincd that portions of Szyo Ca~yor? aztr contapAnat& vith radioactive residue as a result of activities conducteiI for the ku!hsttzi F r- sider this -n...lnecr I?istrict and ntornic Lncrg Cocaissio2. vc con- site to be low priority as potential e!xp,osw'c rates to the general putilic are relatively low under the p&en: Enclosed in

  15. Hacking Photosynthesis: Growing Plants to Power Our Engines and Feed the

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

    Market | Department of Energy Hacking Away at Soft Costs: 24-Hour Coding Event Focuses on Expanding Solar Market Hacking Away at Soft Costs: 24-Hour Coding Event Focuses on Expanding Solar Market May 7, 2014 - 2:45pm Addthis Douglas Hitching (left), CEO of Silicon Solar Solutions and Henry Chung, LG, talk during a one-on-one networking session at the National Renewable Energy Laboratory's Industry Growth Forum in 2012. The SunShot Initiative and the National Renewable Energy Laboratory are

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

    SciTech Connect (OSTI)

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

    2011-08-20

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

  17. A Simultaneous Multi-phase Approach to Determine P-wave and S-wave Attenuation of the Crust and Upper Mantle

    SciTech Connect (OSTI)

    Pasyanos, M E; Walter, W R; Matzel, E M

    2009-02-26

    We have generalized the methodology of our regional amplitude tomography from the Lg phase to the four primary regional phases (Pn, Pg, Sn, Lg). Differences in the geometrical spreading, source term, site term, and travel paths are accounted for, while event source parameters such as seismic moment are consistent among phases. In the process, we have developed the first regional attenuation model that uses the amplitudes of four regional phases to determine a comprehensive P-wave and S-wave attenuation model of the crust and upper mantle. When applied to an area encompassing the Middle East, eastern Europe, western Asia, south Asia, and northeast Africa for the 1-2 Hz passband, we find large differences in the attenuation of the lithosphere across the region. The tectonic Tethys collision zone has high attenuation, while stable outlying regions have low attenuation. While crust and mantle Q variations are often consistent, we do find several notable areas where they differ considerably, but are appropriate given the region's tectonic history. Lastly, the relative values of Qp and Qs indicate that scattering Q is likely the dominant source of attenuation in the crust at these frequencies.

  18. Realistic multisite lattice-gas modeling and KMC simulation of catalytic surface reactions: Kinetics and multiscale spatial behavior for CO-oxidation on metal (100) surfaces

    SciTech Connect (OSTI)

    Liu, Dajiang [Ames Laboratory; Evans, James W. [Ames Laboratory

    2013-12-01

    A realistic molecular-level description of catalytic reactions on single-crystal metal surfaces can be provided by stochastic multisite lattice-gas (msLG) models. This approach has general applicability, although in this report, we will focus on the example of CO-oxidation on the unreconstructed fcc metal (100) or M(100) surfaces of common catalyst metals M = Pd, Rh, Pt and Ir (i.e., avoiding regimes where Pt and Ir reconstruct). These models can capture the thermodynamics and kinetics of adsorbed layers for the individual reactants species, such as CO/M(100) and O/M(100), as well as the interaction and reaction between different reactant species in mixed adlayers, such as (CO + O)/M(100). The msLG models allow population of any of hollow, bridge, and top sites. This enables a more flexible and realistic description of adsorption and adlayer ordering, as well as of reaction configurations and configuration-dependent barriers. Adspecies adsorption and interaction energies, as well as barriers for various processes, constitute key model input. The choice of these energies is guided by experimental observations, as well as by extensive Density Functional Theory analysis. Model behavior is assessed via Kinetic Monte Carlo (KMC) simulation. We also address the simulation challenges and theoretical ramifications associated with very rapid diffusion and local equilibration of reactant adspecies such as CO. These msLG models are applied to describe adsorption, ordering, and temperature programmed desorption (TPD) for individual CO/M(100) and O/M(100) reactant adlayers. In addition, they are also applied to predict mixed (CO + O)/M(100) adlayer structure on the nanoscale, the complete bifurcation diagram for reactive steady-states under continuous flow conditions, temperature programmed reaction (TPR) spectra, and titration reactions for the CO-oxidation reaction. Extensive and reasonably successful comparison of model predictions is made with experimental data. Furthermore, we discuss the possible transition from traditional mean-field-type bistability and reaction kinetics for lower-pressure to multistability and enhanced fluctuation effects for moderate- or higher-pressure. Behavior in the latter regime reflects a stronger influence of adspecies interactions and also lower diffusivity in the higher-coverage mixed adlayer. We also analyze mesoscale spatiotemporal behavior including the propagation of reaction diffusion fronts between bistable reactive and inactive states, and associated nucleation-mediated transitions between these states. This behavior is controlled by complex surface mass transport processes, specifically chemical diffusion in mixed reactant adlayers for which we provide a precise theoretical formulation. The msLG models together with an appropriate treatment of chemical diffusivity enable equation-free heterogeneous coupled lattice-gas (HCLG) simulations of spatiotemporal behavior. In addition, msLG + HCLG modeling can describe coverage variations across polycrystalline catalysts surfaces, pressure variations across catalyst surfaces in microreactors, and could be incorporated into a multiphysics framework to describe mass and heat transfer limitations for high-pressure catalysis. (C) 2013 Elsevier Ltd. All rights reserved.

  19. CARBON SEQUESTRATION IN RECLAIMED MINED SOILS OF OHIO

    SciTech Connect (OSTI)

    M.K. Shukla; R. Lal

    2004-10-01

    This research project is aimed at assessing the soil organic carbon (SOC) sequestration potential of reclaimed minesoils (RMS). The experimental sites, owned and maintained by the American Electrical Power, are located in Guernsey, Morgan, Noble, and Muskingum Counties of Ohio. These sites, characterized by age chronosequences, were reclaimed with and without topsoil application and are under continuous grass or forest cover. During this quarter, water infiltration tests were performed on the soil surface in the experimental sites. Soil samples were analyzed for the soil carbon and nitrogen contents, texture, water stable aggregation, and mean weight and geometric mean diameter of aggregates. This report presents the results from two sites reclaimed during 1978 and managed under grass (Wilds) and forest (Cumberland) cover, respectively. The trees were planted in 1982 in the Cumberland site. The analyses of data on soil bulk density ({rho}{sub b}), SOC and total nitrogen (TN) concentrations and stocks were presented in the third quarter report. This report presents the data on infiltration rates, volume of transport and storage pores, available water capacity (AWC) of soil, particle size distribution, and soil inorganic carbon (SIC) and coal carbon contents. The SIC content ranged from 0.04 to 1.68% in Cumberland tree site and 0.01 to 0.65% in the Wilds. The coal content assumed to be the carbon content after oven drying the sample at 350 C varied between 0.04 and 3.18% for Cumberland and 0.06 and 3.49% for Wilds. The sand, silt and clay contents showed moderate to low variability (CV < 0.16) for 0-15 and 15-30 cm depths. The volume of transmission (VTP) and storage pores (VSP) also showed moderate to high variability (CV ranged from 0.22 to 0.39 for Wilds and 0.17 to 0.36 for Cumberland). The CV for SIC was high (0.7) in Cumberland whereas that for coal content was high (0.4) in the Wilds. The steady state infiltration rates (i{sub c}) also showed high variability (CV > 0.6) and ranged from 0.01 to 0.98 cm min{sup -1} in Cumberland and 0.1 to 1.68 cm min{sup -1} in Wilds. The cumulative infiltration (I) was highly variable (CV > 0.6) and ranged from 4.2 to 110 cm in Cumberland and 17.4 to 250 cm in Wilds. The AWC for 0-15 cm depth also showed moderate variability (CV = 0.3) for Cumberland but high for Wilds (CV = 0.4). The sand and silt contents showed strong spatial dependence with nugget-sill ratio of 15 and 23%, respectively with a range of 50 m in Cumberland site. Strong spatial dependence for sand content was also obtained for Wilds. The VSP, AWC, I, clay content, VTP, and i{sub c}, showed moderate to low spatial dependence (nugget-sill ratio varied from 32 to 72% in Cumberland and 37 to 88% in Wilds). These preliminary results along with those reported earlier during the third quarter suggest that the management effects are important and indicative of these sources of variability.

  20. NATIONAL LEAD COMPANY OF OHIO

    Office of Legacy Management (LM)

    t-t AL- 1. + T fi r,y* t ,.- . NATIONAL LEAD COMPANY OF OHIO Of~~l=l i iy Ci)wp HEALTH AND SAFETY DIVISION - ANALYTICAL DEPT. ANALYTICAL DATA SHEET U-G b ;33y jl:tL G c-w &3(/y I 53 .3 Y5 .y j.os-- ! stz77y t3r1: my I CLvru' f<? 3;/ ' > j!OS ! I I I 1 P-/) ' If I , m 6.3 Lg- /&IL -q-&.+&L, /I a V Q/);: /(Lx 3L- NO. DISTRIBUTION OF COPIES 1 Analytical Laboratory (RECORD COPY) 2 Industrial Hygiene 8 Radiation Dept. Plnnt NLO-HbS-736 IREV. lo/:m4/601 - -_.-__- - ---

  1. Peter Fischer' * and Charles S. Fadley^''

    Office of Scientific and Technical Information (OSTI)

    Probing nanoscale behavior of m agnetic materials with soft X-ray spectromicroscopy Peter Fischer' * and Charles S. Fadley^'' ' C enter fo r X -ra y O ptics, L aw ren ce B erkeley N ational L aboratory, B erkeley, C A 9 4270, U S A , e-m ail: P JF isch er@ lb l.g o v ^D epartm ent o f P hysics, U n iv ersity o f C alifornia, D avis, C A 95616, U S A ■'Material S cien ces D iv isio n , L aw ren ce B erkeley N ational Laboratoi-y, B erkeley, C A 94270, U S A Abstract T h e m a g n e tic p ro p e

  2. Synthesis and characterization of vanadium oxide aerogels. Technical report No. 2, 1 June 1994-31 May 1995

    SciTech Connect (OSTI)

    Chaput, F.; Dunn, B.; Fuqua, P.; Salloux, K.

    1995-07-14

    Vanadium pentoxide aerogels were synthesized by supercritical drying with CO2. The aerogels were prepared using a variety of sol compositions from the system VO(OC3H7)3/H2O/acetone. The materials were found to be of fairly low density (0.04g/cu cm to 0.lg/cu cm) with surface areas in the range of 300 to 400 meters squared/g. Chemical and structural studies indicate that the aerogels are hydrated oxides of composition V2O5 nH2O with n = 2.0 to 2.2 and possess a fibrous morphology. When partially dehydrated, the vanadate aerogels exhibit electron transport with conductivity and activation energy values comparable to those of aerogels. Electrochemical measurements demonstrate that lithium can be intercalated reversibly into the structure.

  3. Q Model for the Pacific Northwest

    SciTech Connect (OSTI)

    Hearn, Thomas; Phillips, William S.

    2012-07-24

    USArray seismic data can be used to generate high resolution attenuation (1/Q) models using regional wave amplitudes. Our Q models have been produced for purposes of explosion monitoring (discrimination and yield estimation), for which we focus on small signals at local to regional distances (to 2000 km). We present Q models for regional Lg, which is sensitive to crustal properties averaged over depth. The frequency range of the study is 0.5-16 Hz. Details of Q models may have limited effect over the short distances of interest to hazard work; however, maps may be useful for regionalizing high versus low Q areas. This study has been submitted to a PAGEOPH special issue on monitoring seismology.

  4. UI,!JTYT) CTaTT:$ A'

    Office of Legacy Management (LM)

    .w. q7 -3 UI,!JTYT) CTaTT:$ A' =O:iI c E' XI:' ;' r' CO1 1-1 S?IO" New Ynrl: Operations Office 70 Columbus iivenue xew Yor'k '?5, 3. Y. I;JFOi< ~,4?' 101? F(:i{ Ti!T; DRESS P)R j:g&isZ No. 17, fi?HIL 2, i-31r:j T:?l3i",TlAY r. I.:. Tel. No. Plaza r[-3600, Ext. 2rjj Aridi l!.L, lg.l3 The United States Atomic Energy Commission has oomploted arrangements with the Federal 'urorlrs Agency for tne use of ths Magnesium Keduction Plant (Pluncor 649) at Luckey, Ohio, for the production

  5. Liquefied gaseous fuels safety and environmental control assessment program: third status report

    SciTech Connect (OSTI)

    Not Available

    1982-03-01

    This Status Report contains contributions from all contractors currently participating in the DOE Liquefied Gaseous Fuels (LG) Safety and Environmental Control Assessment Program and is presented in two principal sections. Section I is an Executive Summary of work done by all program participants. Section II is a presentation of fourteen individual reports (A through N) on specific LGF Program activities. The emphasis of Section II is on research conducted by Lawrence Livermore National Laboratory (Reports A through M). Report N, an annotated bibliography of literature related to LNG safety and environmental control, was prepared by Pacific Northwest Laboratory (PNL) as part of its LGF Safety Studies Project. Other organizations who contributed to this Status Report are Aerojet Energy Conversion Company; Applied Technology Corporation; Arthur D. Little, Incorporated; C/sub v/ International, Incorporated; Institute of Gas Technology; and Massachusetts Institute of Technology. Separate abstracts have been prepared for Reports A through N for inclusion in the Energy Data Base.

  6. Proceedings of Office of Surface Mining Coal Combustion By-product Government/Regulatory Panel: University of Kentucky international ash utilization symposium

    SciTech Connect (OSTI)

    Vories, K.C.

    2003-07-01

    Short papers are given on: the Coal Combustion Program (C2P2) (J. Glenn); regional environmental concerns with disposal of coal combustion wastes at mines (T. FitzGerald); power plant waste mine filling - an environmental perspective (L.G. Evans); utility industry perspective regarding coal combustion product management and regulation (J. Roewer); coal combustion products opportunities for beneficial use (D.C. Goss); state perspective on mine placement of coal combustion by-products (G.E. Conrad); Texas regulations provide for beneficial use of coal combustion ash (S.S. Ferguson); and the Surface Mining Control and Reclamation Act - a response to concerns about placement of CCBs at coal mine sites (K.C. Vories). The questions and answers are also included.

  7. Some environmental and social impacts of the James Bay hydroelectric project, Canada

    SciTech Connect (OSTI)

    Berkes, F.

    1981-03-01

    The construction of the James Bay hydroelectric power project in subarctic Canada started in 1972, but environmental information that would permit mitigation measures did not become available until about 1975. It is suggested that this pattern may be characteristic of large-scale development projects in remote areas where the time lags involved in obtaining environmental data, beyond the simply descriptive information, are such that engineering plans would proceed, for economic reasons, without such environmental data as a planning input. Some environmental and social impact case studies are presented in this paper with regard to the LaGrande Complex phase of the James Bay development. The environmental impact case study involves the subsystem of estuarine fisheries and the effect on it of changes in the flow regime of the LaGrande River, the relocation of the first dam (LG-1) on the LaGrande, saltwater encroachment up the river during the filling of the second dam (LG-2), and the changes in the thermal regime of the river. The social impact case study examines the effect of the road network associated with the hydro development, on the land tenure system of the native Cree Indians of the area. The behavior of developers, as they optimize their engineering plans over the years to develop as much power as is feasible, is contrasted with the behavior of the organizations representing the native peopleof the area, first opposing the project but later giving up the aboriginal title to the land in exchange for some legally recognized rights, and subsequently making additional concessions from their established rights in exchange for various community benefits. It is argued that this process has been resulting in an incremental erosion of the land and resource base of the Cree Indian people.

  8. SHORT VERSUS LONG AND COLLAPSARS VERSUS NON-COLLAPSARS: A QUANTITATIVE CLASSIFICATION OF GAMMA-RAY BURSTS

    SciTech Connect (OSTI)

    Bromberg, Omer; Piran, Tsvi; Sari, Re'em [Racah Institute of Physics, The Hebrew University, 91904 Jerusalem (Israel)] [Racah Institute of Physics, The Hebrew University, 91904 Jerusalem (Israel); Nakar, Ehud [The Raymond and Berverly Sackler School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv (Israel)] [The Raymond and Berverly Sackler School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv (Israel)

    2013-02-20

    Gamma-ray bursts (GRBs) are traditionally divided into long and short according to their durations (lg2 s). It was generally believed that this reflects a different physical origin: collapsars (long) and non-collapsars (short). We have recently shown that the duration distribution of collapsars is flat, namely, independent of the duration, at short durations. Using this model for the distribution of Collapsars we determine the duration distribution of non-Collapsars and estimate the probability that a burst with a given duration (and hardness) is a Collapsar or not. We find that this probability depends strongly on the spectral window of the observing detector. While the commonly used limit of 2 s is conservative and suitable for BATSE bursts, 40% of Swift's bursts shorter than 2 s are Collapsars and the division lg0.8 s is more suitable for Swift. We find that the duration overlap of the two populations is very large. On the one hand there is a non-negligible fraction of non-Collapsars longer than 10 s, while on the other hand even bursts shorter than 0.5 s in the Swift sample have a non-negligible probability to be Collapsars. Our results enable the construction of non-Collapsar samples while controlling the Collapsar contamination. They also highlight that no firm conclusions can be drawn based on a single burst and they have numerous implications concerning previous studies of non-Collapsar properties that were based on the current significantly contaminated Swift samples of localized short GRBs. Specifically (1) all known short bursts with z > 1 are most likely Collapsars; (2) the only short burst with a clear jet break is most likely a Collapsar, indicating our lack of knowledge concerning non-Collapsar beaming; and (3) the existence of non-Collapsars with durations up to 10 s imposes new challenges to non-Collapsar models.

  9. Supercement for Annular Seal and Long-Term Integrity in Deep, Hot Wells "Deep Trek"

    SciTech Connect (OSTI)

    Kevin D. Edgley; Fred L. Sabins; Larry T. Watters

    2005-08-31

    The purpose of this project is to formulate a ''Supercement'' designed for improving the long-term sealing integrity in HPHT wells. Phase I concentrated on chemistry studies and screening tests to design and evaluate Portland-based, hybrid Portland, and non-Portland-based cement systems suitable for further scale-up testing. Phase II work concentrated on additional lab and field testing to reduce the candidate materials list to two systems, as well as scale up activities aimed at verifying performance at the field scale. Phase II was extended thorough a proposal to develop additional testing capabilities aimed at quantifying cementing material properties and performance that were previously not possible. Two materials are being taken into Phase III for field testing and commercialization: {lg_bullet} Highly-expansive cement (Portland-based), patent pending as ''Pre-Stressed Cement'' {lg_bullet} Epoxy Resin (non-Portland-based), patent pending In Phase II, significant effort was expended on scaling up the processes for handling resin in the field, as it is quite different than conventional Portland-based cements in mixing, personnel protection, and cleanup. Through this effort, over fifty (50) field jobs were done at a variety of temperatures and depths, most with excellent results. Large-scale field testing was less relevant with Pre-stressed Cement, because the materials and surface processes do not vary from those that have been developed for conventional Portland materials over the last eighty (80) years. The formulation is quite unique, however, and performs very differently than conventional Portland cements downhole.

  10. Power and Performance Trade-offs for Space Time Adaptive Processing

    SciTech Connect (OSTI)

    Gawande, Nitin A.; Manzano Franco, Joseph B.; Tumeo, Antonino; Tallent, Nathan R.; Kerbyson, Darren J.; Hoisie, Adolfy

    2015-07-27

    Computational efficiency – performance relative to power or energy – is one of the most important concerns when designing RADAR processing systems. This paper analyzes power and performance trade-offs for a typical Space Time Adaptive Processing (STAP) application. We study STAP implementations for CUDA and OpenMP on two computationally efficient architectures, Intel Haswell Core I7-4770TE and NVIDIA Kayla with a GK208 GPU. We analyze the power and performance of STAP’s computationally intensive kernels across the two hardware testbeds. We also show the impact and trade-offs of GPU optimization techniques. We show that data parallelism can be exploited for efficient implementation on the Haswell CPU architecture. The GPU architecture is able to process large size data sets without increase in power requirement. The use of shared memory has a significant impact on the power requirement for the GPU. A balance between the use of shared memory and main memory access leads to an improved performance in a typical STAP application.

  11. ON THE EFFICIENCY OF THE TIDAL STIRRING MECHANISM FOR THE ORIGIN OF DWARF SPHEROIDALS: DEPENDENCE ON THE ORBITAL AND STRUCTURAL PARAMETERS OF THE PROGENITOR DISKY DWARFS

    SciTech Connect (OSTI)

    Kazantzidis, Stelios; Lokas, Ewa L.; Callegari, Simone; Mayer, Lucio; Moustakas, Leonidas A. E-mail: lokas@camk.edu.pl E-mail: lucio@phys.ethz.ch

    2011-01-10

    The tidal stirring model posits the formation of dwarf spheroidal galaxies (dSphs) via the tidal interactions between late-type, rotationally supported dwarfs and Milky-Way-sized host galaxies. Using a comprehensive set of collisionless N-body simulations, we investigate the efficiency of the tidal stirring mechanism for the origin of dSphs. In particular, we examine the degree to which the tidal field of the primary galaxy affects the sizes, masses, shapes, and kinematics of the disky dwarfs for a range of dwarf orbital and structural parameters. Our study is the first to employ self-consistent, equilibrium models for the progenitor dwarf galaxies constructed from a composite distribution function and consisting of exponential stellar disks embedded in massive, cosmologically motivated dark matter halos. Exploring a wide variety of dwarf orbital configurations and initial structures, we demonstrate that in the majority of cases the disky dwarfs experience significant mass loss and their stellar distributions undergo a dramatic morphological, as well as dynamical, transformation. Specifically, the stellar components evolve from disks to bars and finally to pressure-supported, spheroidal systems with kinematic and structural properties akin to those of the classic dSphs in the Local Group (LG) and similar environments. The self-consistency of the adopted dwarf models is crucial for confirming this complex transformation process via tidally induced dynamical instabilities and impulsive tidal heating of the stellar distribution. Our results suggest that such tidal transformations should be common occurrences within the currently favored cosmological paradigm and highlight the key factor responsible for an effective metamorphosis to be the strength of the tidal shocks at the pericenters of the orbit. We also demonstrate that the combination of short orbital times and small pericentric distances, characteristic of dwarfs being accreted by their hosts at high redshift, induces the strongest and most complete transformations. Our models also indicate that the efficiency of the transformation via tidal stirring is affected significantly by the structure of the progenitor disky dwarfs. While the mass-to-light ratios, M/L, of the dwarf galaxies typically decrease monotonically with time as the extended dark matter halos are efficiently tidally stripped, we identify a few cases where this trend is reversed later in the evolution when stellar mass loss becomes more effective. We also find that the dwarf remnants satisfy the relation V{sub max}={radical}3 {sigma}{sub *}, where {sigma}{sub *} is the one-dimensional, central stellar velocity dispersion and V{sub max} is the maximum halo circular velocity, which has intriguing implications for the missing satellites problem. Assuming that the distant dSphs in the LG, such as Leo I, Tucana, and Cetus, are the products of tidal stirring, our findings suggest that these galaxies should have only been partially stirred by the tidal field of their hosts. We thus predict that these remote dwarfs should exhibit higher values of V{sub rot}/{sigma}{sub *}, where V{sub rot} is the stellar rotational velocity, compared with those of dSphs located closer to the primary galaxies. Overall, we conclude that the action of tidal forces from the hosts constitutes a crucial evolutionary mechanism for shaping the nature of dwarf galaxies in environments such as that of the LG. Environmental mechanisms of this type should thus be included as ingredients in models of dwarf galaxy formation and evolution.

  12. Pore size distribution and methane equilibrium conditions at Walker Ridge Block 313, northern Gulf of Mexico

    SciTech Connect (OSTI)

    Bihani, Abhishek; Daigle, Hugh; Cook, Ann; Glosser, Deborah; Shushtarian, Arash

    2015-12-15

    Coexistence of three methane phases (liquid (L), gas (G), hydrate (H)) in marine gas hydrate systems may occur according to in-situ pressure, temperature, salinity and pore size. In sediments with salinity close to seawater, a discrete zone of three-phase (3P) equilibrium may occur near the base of the regional hydrate stability zone (RHSZ) due to capillary effects. The existence of a 3P zone influences the location of the bottom-simulating reflection (BSR) and has implications for methane fluxes at the base of the RHSZ. We studied hydrate stability conditions in two wells, WR313-G and WR313-H, at Walker Ridge Block 313 in the northern Gulf of Mexico. We determined pore size distributions (PSD) by constructing a synthetic nuclear magnetic resonance (NMR) relaxation time distribution. Correlations were obtained by non-linear regression on NMR, gamma ray, and bulk density logs from well KC-151 at Keathley Canyon. The correlations enabled construction of relaxation time distributions for WR313-G and WR313-H, which were used to predict PSD through comparison with mercury injection capillary pressure measurements. With the computed PSD, L+H and L+G methane solubility was determined from in-situ pressure and temperature. The intersection of the L+G and L+H curves for various pore sizes allowed calculation of the depth range of the 3P equilibrium zone. As in previous studies at Blake Ridge and Hydrate Ridge, the top of the 3P zone moves upwards with increasing water depth and overlies the bulk 3P equilibrium depth. In clays at Walker Ridge, the predicted thickness of the 3P zone is approximately 35 m, but in coarse sands it is only a few meters due to the difference in absolute pore sizes and the width of the PSD. The thick 3P zone in the clays may explain in part why the BSR is only observed in the sand layers at Walker Ridge, although other factors may influence the presence or absence of a BSR.

  13. Cobalt-doped Bi{sub 26}Mo{sub 10}O{sub 69}: Crystal structure and conductivity

    SciTech Connect (OSTI)

    Mikhailovskaya, Z.A.; Buyanova, E.S.; Petrova, S.A.; Morozova, M.V.; Zhukovskiy, V.M.; Zakharov, R.G.; Tarakina, N.V.; Berger, I.F.

    2013-08-15

    A series of cobalt-doped bismuth molybdates were synthesized and investigated using X-ray powder diffraction, transmission electron microscopy and impedance spectroscopy. The ranges of solid solution were determined. Two new compounds, Bi{sub 1?x}Co{sub x}[Bi{sub 12}O{sub 14}]Mo{sub 5}O{sub 34.5?} (x=0.2) and Bi[Bi{sub 12}O{sub 14}]Mo{sub 5?y}Co{sub y}O{sub 34.5?} (y=0.2), which crystallise in monoclinic unit cells have been examined in detail by diffraction methods. Impedance spectroscopy measurements show that the studied materials are good ionic conductors with conductivity values about 510{sup ?3} Scm{sup ?1} at 973 K and 1.710{sup ?4} Scm{sup ?1} at 623 K, which are similar to conductivity values of yttrium substituted zirconia and (YSZ) gadolinium doped ceria (CGO). - Graphical abstract: Measured and calculated diffraction spectra for Bi{sub 12.8}Co{sub 0.2}Mo{sub 5}O{sub 34?} and projection of the Bi{sub 12.8}Co{sub 0.2}Mo{sub 5}O{sub 34?} crystal structure onto the ac plane. Highlights: The limit of the Bi{sub 1?x}Co{sub x}[Bi{sub 12}O{sub 14}]Mo{sub 5}O{sub 34.5?} homogeneity range is equal to x=0.2. The limit of the Bi[Bi{sub 12}O{sub 14}]Mo{sub 5?y}Co{sub y}O{sub 34.5?} homogeneity range is equal to y=0.2. Solid solutions have monoclinic symmetry. No phase transition is observed. The conductivity at 700 for y=0.2 solid solutions is equal to ?lg ?, Scm{sup ?1}=2.23. The conductivity at 350 for y=0.2 solid solutions is equal to ?lg ?, Scm{sup ?1}=3.74.

  14. SU-E-T-568: Improving Normal Brain Sparing with Increasing Number of Arc Beams for Volume Modulated Arc Beam Radiosurgery of Multiple Brain Metastases

    SciTech Connect (OSTI)

    Hossain, S; Hildebrand, K; Ahmad, S; Larson, D; Ma, L; Sahgal, A

    2014-06-01

    Purpose: Intensity modulated arc beams have been newly reported for treating multiple brain metastases. The purpose of this study was to determine the variations in the normal brain doses with increasing number of arc beams for multiple brain metastases treatments via the TrueBeam Rapidarc system (Varian Oncology, Palo Alto, CA). Methods: A patient case with 12 metastatic brain lesions previously treated on the Leksell Gamma Knife Perfexion (GK) was used for the study. All lesions and organs at risk were contoured by a senior radiation oncologist and treatment plans for a subset of 3, 6, 9 and all 12 targets were developed for the TrueBeam Rapidarc system via 3 to 7 intensity modulated arc-beams with each target covered by at least 99% of the prescribed dose of 20 Gy. The peripheral normal brain isodose volumes as well as the total beam-on time were analyzed with increasing number of arc beams for these targets. Results: All intensisty modulated arc-beam plans produced efficient treatment delivery with the beam-on time averaging 0.6–1.5 min per lesion at an output of 1200 MU/min. With increasing number of arc beams, the peripheral normal brain isodose volumes such as the 12-Gy isodose line enclosed normal brain tissue volumes were on average decreased by 6%, 11%, 18%, and 28% for the 3-, 6-, 9-, 12-target treatment plans respectively. The lowest normal brain isodose volumes were consistently found for the 7-arc treatment plans for all the cases. Conclusion: With nearly identical beam-on times, the peripheral normal brain dose was notably decreased when the total number of intensity modulated arc beams was increased when treating multiple brain metastases. Dr Sahgal and Dr Ma are currently serving on the board of international society of stereotactic radiosurgery.

  15. A LIGHT CURVE ANALYSIS OF CLASSICAL NOVAE: FREE-FREE EMISSION VERSUS PHOTOSPHERIC EMISSION

    SciTech Connect (OSTI)

    Hachisu, Izumi; Kato, Mariko E-mail: mariko@educ.cc.keio.ac.jp

    2015-01-10

    We analyzed light curves of seven relatively slower novae, PW Vul, V705 Cas, GQ Mus, RR Pic, V5558 Sgr, HR Del, and V723 Cas, based on an optically thick wind theory of nova outbursts. For fast novae, free-free emission dominates the spectrum in optical bands rather than photospheric emission, and nova optical light curves follow the universal decline law. Faster novae blow stronger winds with larger mass-loss rates. Because the brightness of free-free emission depends directly on the wind mass-loss rate, faster novae show brighter optical maxima. In slower novae, however, we must take into account photospheric emission because of their lower wind mass-loss rates. We calculated three model light curves of free-free emission, photospheric emission, and their sum for various white dwarf (WD) masses with various chemical compositions of their envelopes and fitted reasonably with observational data of optical, near-IR (NIR), and UV bands. From light curve fittings of the seven novae, we estimated their absolute magnitudes, distances, and WD masses. In PW Vul and V705 Cas, free-free emission still dominates the spectrum in the optical and NIR bands. In the very slow novae, RR Pic, V5558 Sgr, HR Del, and V723 Cas, photospheric emission dominates the spectrum rather than free-free emission, which makes a deviation from the universal decline law. We have confirmed that the absolute brightnesses of our model light curves are consistent with the distance moduli of four classical novae with known distances (GK Per, V603 Aql, RR Pic, and DQ Her). We also discussed the reason why the very slow novae are about ∼1 mag brighter than the proposed maximum magnitude versus rate of decline relation.

  16. Impact of the nuclear symmetry energy on the pygmy dipole resonance

    SciTech Connect (OSTI)

    Daoutidis, I.; Goriely, S.

    2011-08-15

    The correlation between the pygmy dipole strength and the symmetry energy of nuclear matter is reanalyzed. While previous calculations [A. Klimkiewicz et al., Phys. Rev. C 76, 051603(R) (2007); A. Carbone, G. Colo, A. Bracco, L.-G. Cao, P. F. Bortignon, F. Camera, and O. Wieland, Phys. Rev. C 81, 041301 (2010).] have clearly shown a direct correlation between both quantities, it remains unclear to what extent experimental as well as theoretical uncertainties can allow for an accurate determination of the symmetry energy. For this reason, we have recalculated the low-lying strength distributions of the giant dipole resonances for {sup 130}Sn and {sup 132}Sn that have been recently measured, taking into account the above uncertainties. The calculations are performed within two microscopic models, namely, the discrete quasiparticle random phase approximation (DRPA) and the quasiparticle continuum RPA, which is an extension of the DRPA that takes the coupling to the single-particle continuum into account in an exact way.

  17. Manufacturing laser glass by continuous melting

    SciTech Connect (OSTI)

    Campbell, J H; Suratwala, T; krenitsky, S; Takeuchi, K

    2000-07-01

    A novel, continuous melting process is being used to manufacture meter-sized plates of laser glass at a rate 20-times faster, 5-times cheaper, and with 2-3 times better optical quality than with previous one-at-a-time, ''discontinuous'' technology processes. This new technology for manufacturing laser glass, which is arguably the most difficult continuously-melted optical material ever produced, comes as a result of a $60 million, six-year joint R&D program between government and industry. The glasses manufactured by the new continuous melting process are Nd-doped phosphate-based glasses and are marketed under the product names LG-770 (Schott Glass Technologies) and LHG-8 (Hoya Corporation USA). With this advance in glass manufacturing technology, it is now possible to construct high-energy, high-peak-power lasers for use in fusion energy development, national defense, and basic physics research that would have been impractical to build using the old melting technology. The development of continuously melted laser glass required technological advances that have lead to improvements in the manufacture of other optical glass products as well. For example, advances in forming, annealing, and conditioning steps of the laser glass continuous melting process are now being used in manufacture of other large-size optical glasses.

  18. Ab Initio Calculation of Nuclear Magnetic Resonance Chemical Shift Anisotropy Tensors 1. Influence of Basis Set on the Calculation of 31P Chemical Shifts

    SciTech Connect (OSTI)

    Alam, T.M.

    1998-09-01

    The influence of changes in the contracted Gaussian basis set used for ab initio calculations of nuclear magnetic resonance (NMR) phosphorous chemical shift anisotropy (CSA) tensors was investigated. The isotropic chemical shitl and chemical shift anisotropy were found to converge with increasing complexity of the basis set at the Hartree-Fock @IF) level. The addition of d polarization function on the phosphorous nucIei was found to have a major impact of the calculated chemical shi~ but diminished with increasing number of polarization fimctions. At least 2 d polarization fimctions are required for accurate calculations of the isotropic phosphorous chemical shift. The introduction of density fictional theory (DFT) techniques through tie use of hybrid B3LYP methods for the calculation of the phosphorous chemical shift tensor resulted in a poorer estimation of the NMR values, even though DFT techniques result in improved energy and force constant calculations. The convergence of the W parametem with increasing basis set complexity was also observed for the DFT calculations, but produced results with consistent large deviations from experiment. The use of a HF 6-31 l++G(242p) basis set represents a good compromise between accuracy of the simulation and the complexity of the calculation for future ab initio calculations of 31P NMR parameters in larger complexes.

  19. Review of ingot niobium as a material for superconducting radiofrequency accelerating cavities

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

    Kneisel, P.; Ciovati, G.; Dhakal, P.; Saito, K.; Singer, W.; Singer, X.; Myneni, G. R.

    2014-12-01

    As a result of collaboration between Jefferson Lab and niobium manufacturer Companhia Brasileira de Metalurgia e Mineração (CBMM), ingot niobium was explored as a possible material for superconducting radiofrequency (SRF) cavity fabrication. The first single cell cavity from large-grain high purity niobium was fabricated and successfully tested at Jefferson Lab in 2004. This work triggered research activities in other SRF laboratories around the world. The large-grain (LG) niobium became not only an interesting alternative material for cavity builders, but also material scientists and surface scientists were eager to participate in the development of this technology. Many single cell cavities mademore » from material of different suppliers have been tested successfully and several multi-cell cavities have shown performances comparable to the best cavities made from standard fine-grain niobium. Several 9-cell cavities fabricated by Research Instruments and tested at DESY exceeded the best performing fine grain cavities with a record accelerating gradient of Eacc=45.6 MV/m. The quality factor of those cavities was also higher than that of fine-grain (FG) cavities processed with the same methods. Such performance levels push the state-of-the art of SRF technology and are of great interest for future accelerators. This contribution reviews the development of ingot niobium technology and highlights some of the differences compared to standard FG material and opportunities for further developments.« less

  20. Analysis of source spectra, attenuation, and site effects from central and eastern United States earthquakes

    SciTech Connect (OSTI)

    Lindley, G.

    1998-02-01

    This report describes the results from three studies of source spectra, attenuation, and site effects of central and eastern United States earthquakes. In the first study source parameter estimates taken from 27 previous studies were combined to test the assumption that the earthquake stress drop is roughly a constant, independent of earthquake size. 200 estimates of stress drop and seismic moment from eastern North American earthquakes were combined. It was found that the estimated stress drop from the 27 studies increases approximately as the square-root of the seismic moment, from about 3 bars at 10{sup 20} dyne-cm to 690 bars at 10{sup 25} dyne-cm. These results do not support the assumption of a constant stress drop when estimating ground motion parameters from eastern North American earthquakes. In the second study, broadband seismograms recorded by the United States National Seismograph Network and cooperating stations have been analysed to determine Q{sub Lg} as a function of frequency in five regions: the northeastern US, southeastern US, central US, northern Basin and Range, and California and western Nevada. In the third study, using spectral analysis, estimates have been made for the anelastic attenuation of four regional phases, and estimates have been made for the source parameters of 27 earthquakes, including the M{sub b} 5.6, 14 April, 1995, West Texas earthquake.

  1. Cosmic histories of star formation and reionization: an analysis with a power-law approximation

    SciTech Connect (OSTI)

    Yu, Yun-Wei; Cheng, K.S.; Chu, M.C.; Yeung, S. E-mail: hrspksc@hku.hk E-mail: terryys@gmail.com

    2012-07-01

    With a simple power-law approximation of high-redshift (?>3.5) star formation history, i.e., ?-dot {sub *}(z)?[(1+z)/4.5]{sup ??}, we investigate the reionization of intergalactic medium (IGM) and the consequent Thomson scattering optical depth for cosmic microwave background (CMB) photons. A constraint on the evolution index ? is derived from the CMB optical depth measured by the Wilkinson Microwave Anisotropy Probe (WMAP) experiment, which reads ? ? 2.18 lg N{sub ?}?3.89, where the free parameter N{sub ?} is the number of the escaped ionizing ultraviolet photons per baryon. At the same time, the redshift z{sub f} at which the IGM is fully ionized can also be expressed as a function of ? as well as N{sub ?}. By further taking into account the implication of the Gunn-Peterson trough observations to quasars for the full reionization redshift, i.e., 6?

  2. Extended Durability Testing of an External Fuel Processor for a Solid Oxide Fuel Cell (SOFC)

    SciTech Connect (OSTI)

    Mark Perna; Anant Upadhyayula; Mark Scotto

    2012-11-05

    Durability testing was performed on an external fuel processor (EFP) for a solid oxide fuel cell (SOFC) power plant. The EFP enables the SOFC to reach high system efficiency (electrical efficiency up to 60%) using pipeline natural gas and eliminates the need for large quantities of bottled gases. LG Fuel Cell Systems Inc. (formerly known as Rolls-Royce Fuel Cell Systems (US) Inc.) (LGFCS) is developing natural gas-fired SOFC power plants for stationary power applications. These power plants will greatly benefit the public by reducing the cost of electricity while reducing the amount of gaseous emissions of carbon dioxide, sulfur oxides, and nitrogen oxides compared to conventional power plants. The EFP uses pipeline natural gas and air to provide all the gas streams required by the SOFC power plant; specifically those needed for start-up, normal operation, and shutdown. It includes a natural gas desulfurizer, a synthesis-gas generator and a start-gas generator. The research in this project demonstrated that the EFP could meet its performance and durability targets. The data generated helped assess the impact of long-term operation on system performance and system hardware. The research also showed the negative impact of ambient weather (both hot and cold conditions) on system operation and performance.

  3. Review of ingot niobium as a material for superconducting radiofrequency accelerating cavities

    SciTech Connect (OSTI)

    Kneisel, P.; Ciovati, G.; Dhakal, P.; Saito, K.; Singer, W.; Singer, X.; Myneni, G. R.

    2014-12-01

    As a result of collaboration between Jefferson Lab and niobium manufacturer Companhia Brasileira de Metalurgia e Minerao (CBMM), ingot niobium was explored as a possible material for superconducting radiofrequency (SRF) cavity fabrication. The first single cell cavity from large-grain high purity niobium was fabricated and successfully tested at Jefferson Lab in 2004. This work triggered research activities in other SRF laboratories around the world. The large-grain (LG) niobium became not only an interesting alternative material for cavity builders, but also material scientists and surface scientists were eager to participate in the development of this technology. Many single cell cavities made from material of different suppliers have been tested successfully and several multi-cell cavities have shown performances comparable to the best cavities made from standard fine-grain niobium. Several 9-cell cavities fabricated by Research Instruments and tested at DESY exceeded the best performing fine grain cavities with a record accelerating gradient of Eacc=45.6 MV/m. The quality factor of those cavities was also higher than that of fine-grain (FG) cavities processed with the same methods. Such performance levels push the state-of-the art of SRF technology and are of great interest for future accelerators. This contribution reviews the development of ingot niobium technology and highlights some of the differences compared to standard FG material and opportunities for further developments.

  4. The Cr-substitution concentration dependence of the structural, electric and magnetic behaviors for Aurivillius Bi{sub 5}Ti{sub 3}FeO{sub 15} multiferroic ceramics

    SciTech Connect (OSTI)

    Liu, Jia; Bai, Wei E-mail: xdtang@sist.ecnu.edu.cn; Yang, Jing; Xu, Wenfei; Zhang, Yuanyuan; Tang, Xiaodong E-mail: xdtang@sist.ecnu.edu.cn; Lin, Tie; Meng, Xiangjian; Duan, Chun-Gang; Chu, Junhao

    2013-12-21

    Aurivillius Bi{sub 5}Ti{sub 3}FeO{sub 15} (BTFO) multiferroic ceramics with different Cr-doped concentrations have been synthesized by the conventional solid state reaction method. The influences of Cr-doping concentrations on the structural, magnetic, dielectric, and ferroelectric properties of BTFO ceramics are investigated in detail. All these sintered Cr-substituted BTFO ceramics are determined to be layered perovskite Aurivillius structure by X-ray diffraction, as well as the lattice parameters a, b, and c are in good accordance with Vegard's law along with the Cr-doping concentration. The lattice distortion a/b for Aurivillius family decreases with increasing Cr-doping concentration. Moreover, Cr-doping can promote greatly the grain growth of BTFO samples confirmed from field emission scanning electron microscopy characterization. However, no obvious signs of the improvement in ferroelectric properties are found in Cr-doped BTFO ceramics, and abnormal ferroelectric polarization versus electric field (P-E) loops are observed as Cr-doping content is beyond 0.1. Similar ? (tan?) versus frequency plots to those of the BTFO sample are exhibited when Cr-doping concentration is less than 0.1. Nevertheless, obvious dielectric dispersion phenomena are shown as the Cr-doping concentration is beyond 0.1, and this dispersion behavior becomes strong with further increasing Cr-doping concentration, which are clearly indicated by the appearance of dielectric loss relaxation peaks in the measurement frequency from 10{sup 2} Hz to 10{sup 6} Hz. In addition, the corresponding frequency to relaxation peak shifts towards high frequencies with the Cr-doping concentration. Finally, the same magnetic orderings for all these Cr-doped BTFO ceramics as those of the BTFO one, i.e., superparamagnetic state dominated with antiferromagnetic interaction, are unambiguously found, signifying that the predicted Fe{sup 3+}-O-Cr{sup 3+} 180 ferromagnetic superexchange interaction based on the Goodenough-Kanamori (G-K) rule might not be achieved in BTFO ceramics through Cr substitution by the conventional solid state reaction.

  5. Nanoscale Molecules Under Thermodynamic Control:" Digestive Ripening" or " Nanomachining"

    SciTech Connect (OSTI)

    Klabunde, Kenneth J.

    2015-06-04

    Overall Research Goals and Specific Objectives: Nanoscale materials are becoming ubiquitous in science and engineering, and are found widely in nature. However, their formation processes and uniquely high chemical reactivities are not understood well, indeed are often mysterious. Over recent years, a number of research teams have described nanoparticle synthesis, and aging, thermal treatment, or etching times have been mentioned. We have used the terms “digestive ripening” and “nanomachining” and have suggested that thermodynamics plays an important part in the size adjustment to monodisperse arrays being formed. Since there is scant theoretical understanding of digestive ripening, the overall goal in our research is to learn what experimental parameters (ligand used, temperature, solvent, time) are most important, how to control nanoparticle size and shape after initial crude nanoparticles have been synthesized, and gain better understanding of the chemical mechanism details. Specific objectives for the past twentynine months since the grant began have been to (1) Secure and train personnel;as of 2011, a postdoc Deepa Jose, female from the Indian Institute of Science in Bangalore, India; Yijun Sun, a second year graduate student, female from China; and Jessica Changstrom, female from the USA, GK12 fellow (program for enhancing teaching ability) are actively carrying out research. (2) Find out what happens to sulfur bound hydrogen of thiol when it interacts with gold nanoparticles. Our findings are discussed in detail later. (3) Determine the effect of particle size, shape, and temperature on dodecyl thiol assited digestive ripening of gold nanoparticles. See our discussions later. (4) To understand in detail the ligand interaction in molecular clusters and nanoparticles (5) Determine the effect of chain length of amines on Au nanoparticle size under digestive ripening conditions (carbon chain length varied from 4-18). (6) Determine the catalytic activity of gold superlattices obtained by digestive ripening for oxidation of CO to CO2 at room temperature. (7) Determine the photocatalytic activity of metal nanoparticles like Au, Ag,Cu, and Pd supported on TiO2 toward photocatalytic hydrogen production.

  6. Validation of New Process Models for Large Injection-Molded Long-Fiber Thermoplastic Composite Structures

    SciTech Connect (OSTI)

    Nguyen, Ba Nghiep; Jin, Xiaoshi; Wang, Jin; Kunc, Vlastimil; Tucker III, Charles L.

    2012-02-23

    This report describes the work conducted under the CRADA Nr. PNNL/304 between Battelle PNNL and Autodesk whose objective is to validate the new process models developed under the previous CRADA for large injection-molded LFT composite structures. To this end, the ARD-RSC and fiber length attrition models implemented in the 2013 research version of Moldflow was used to simulate the injection molding of 600-mm x 600-mm x 3-mm plaques from 40% glass/polypropylene (Dow Chemical DLGF9411.00) and 40% glass/polyamide 6,6 (DuPont Zytel 75LG40HSL BK031) materials. The injection molding was performed by Injection Technologies, Inc. at Windsor, Ontario (under a subcontract by Oak Ridge National Laboratory, ORNL) using the mold offered by the Automotive Composite Consortium (ACC). Two fill speeds under the same back pressure were used to produce plaques under slow-fill and fast-fill conditions. Also, two gating options were used to achieve the following desired flow patterns: flows in edge-gated plaques and in center-gated plaques. After molding, ORNL performed measurements of fiber orientation and length distributions for process model validations. The structure of this report is as follows. After the Introduction (Section 1), Section 2 provides a summary of the ARD-RSC and fiber length attrition models. A summary of model implementations in the latest research version of Moldflow is given in Section 3. Section 4 provides the key processing conditions and parameters for molding of the ACC plaques. The validations of the ARD-RSC and fiber length attrition models are presented and discussed in Section 5. The conclusions will be drawn in Section 6.

  7. Elimination of platinum inclusions in phosphate laser glasses

    SciTech Connect (OSTI)

    Campbell, J.H.; Wallerstein, E.P. ); Hayden, J.S.; Sapak, D.L.; Warrington, D.E.; Marker, A.J. III ); Toratani, H.; Meissner, H.; Nakajima, S.; Izumitani, T. )

    1989-05-26

    Results from small-scale glass melting experiments aimed at reducing the density of platinum particles in phosphate laser glasses are discussed. The platinum particles originate from the crucibles used to melt the laser glass and can cause optical damage in glasses used in high-peak-power lasers; this problem was particularly acute in the LLNL 120 kJ, 100 TW Nova laser. The melting experiments examine the effects of (i) N{sub 2}, O{sub 2}, and Cl{sub 2} gas atmospheres; (ii) temperature and temperature gradients; (iii) processing time; and (iv) platinum alloys on the formation and dissolution of platinum inclusions in LHG-8 and LG-750 phosphate laser glasses. Results show that most platinum inclusions originate early in the melt cycle, with thermal gradients within the melter being one of the major causes. By using oxidizing gas conditions (O{sub 2}, Cl{sub 2}, or O{sub 2} + Cl{sub 2}), the platinum inclusions can be dissolved into the glass during the course of the melt cycle. The dissolution rate of platinum under oxidizing conditions has been measured, and a model is used to quantify the description of the dissolution process. The effect of ionic platinum on the transmission spectra of the laser glasses produced under various oxidizing conditions has also been measured. Results from the above laboratory-scale melting experiments have been incorporated into proprietary laser-glass melting processes. The laser glasses prepared under these conditions have an average of less than 0.1 platinum inclusions/liter, which represents a 1000-fold reduction over the previously available phosphate laser glasses. 52 refs., 56 figs., 15 tabs.

  8. Regional Body-Wave Attenuation Using a Coda Source Normalization Method: Application to MEDNET Records of Earthquakes in Italy

    SciTech Connect (OSTI)

    Walter, W R; Mayeda, K; Malagnini, L; Scognamiglio, L

    2007-02-01

    We develop a new methodology to determine apparent attenuation for the regional seismic phases Pn, Pg, Sn, and Lg using coda-derived source spectra. The local-to-regional coda methodology (Mayeda, 1993; Mayeda and Walter, 1996; Mayeda et al., 2003) is a very stable way to obtain source spectra from sparse networks using as few as one station, even if direct waves are clipped. We develop a two-step process to isolate the frequency-dependent Q. First, we correct the observed direct wave amplitudes for an assumed geometrical spreading. Next, an apparent Q, combining path and site attenuation, is determined from the difference between the spreading-corrected amplitude and the independently determined source spectra derived from the coda methodology. We apply the technique to 50 earthquakes with magnitudes greater than 4.0 in central Italy as recorded by MEDNET broadband stations around the Mediterranean at local-to-regional distances. This is an ideal test region due to its high attenuation, complex propagation, and availability of many moderate sized earthquakes. We find that a power law attenuation of the form Q(f) = Q{sub 0}f{sup Y} fit all the phases quite well over the 0.5 to 8 Hz band. At most stations, the measured apparent Q values are quite repeatable from event to event. Finding the attenuation function in this manner guarantees a close match between inferred source spectra from direct waves and coda techniques. This is important if coda and direct wave amplitudes are to produce consistent seismic results.

  9. A THEORETICAL INVESTIGATION OF RADIOLYTIC H2 GENERATION FROM SOLIDS

    SciTech Connect (OSTI)

    Westbrook, M.; Sindelar, R.; Fisher, D.

    2012-02-01

    Hydrogen generation from materials in nuclear materials storage is of critical interest due to the potential for pressurization and/or flammability issues. Studies have focused on aqueous systems or those with minor amounts of physisorbed water, since conventional knowledge identifies the radiolytic decomposition of water as the source of H{sub 2} gas. Furthermore, the approach to characterize gas generation is typically strictly empirical, relying on determination of G-values from which production in systems is estimated. Interestingly, exploratory work at SRNL1 on gamma exposure to fully-dried solids with chemically-bound water that are typical of those produced on aluminium-clad nuclear fuel in reactor and post-discharge storage has shown a profound production of hydrogen (as the sole gaseous species) from fully dried boehmite ({gamma}-AlOOH or Al{sub 2}O{sub 3} {center_dot} H{sub 2}O) powders and no observable hydrogen from gibbsite ({gamma}-Al(OH){sub 3} or Al{sub 2}O{sub 3} {center_dot} 3H{sub 2}O) under gamma irradiation from cobalt-60. This observation is significant in that gibbsite is known to thermally decompose at 80 C whereas boehmite is stable to 400 C. Radiation damage can have various effects on solids, including heating, bond breaking, and rearrangements in the bonding structure. For example, a molecule can be ionized resulting in the generation of free electrons which can, in turn, ionize another molecule. Alternately, reactive radical species such as {lg_bullet}OH or cation species may be formed, which can go on to change bonding structures.

  10. SOURCE PHENOMENOLOGY EXPERIMENTS IN ARIZONA

    SciTech Connect (OSTI)

    Jessie L. Bonner; Brian Stump; Mark Leidig; Heather Hooper; Xiaoning Yang; Rongmao Zhou; Tae Sung Kim; William R. Walter; Aaron Velasco; Chris Hayward; Diane Baker; C. L. Edwards; Steven Harder; Travis Glenn; Cleat Zeiler; James Britton; James F. Lewkowicz

    2005-09-30

    The Arizona Source Phenomenology Experiments (SPE) have resulted in an important dataset for the nuclear monitoring community. The 19 dedicated single-fired explosions and multiple delay-fired mining explosions were recorded by one of the most densely instrumented accelerometer and seismometer arrays ever fielded, and the data have already proven useful in quantifying confinement and excitation effects for the sources. It is very interesting to note that we have observed differences in the phenomenology of these two series of explosions resulting from the differences between the relatively slow (limestone) and fast (granodiorite) media. We observed differences at the two SPE sites in the way the rock failed during the explosions, how the S-waves were generated, and the amplitude behavior as a function of confinement. Our consortium's goal is to use the synergy of the multiple datasets collected during this experiment to unravel the phenomenological differences between the two emplacement media. The data suggest that the main difference between single-fired chemical and delay-fired mining explosion seismograms at regional distances is the increased surface wave energy for the latter source type. The effect of the delay-firing is to decrease the high-frequency P-wave amplitudes while increasing the surface wave energy because of the longer source duration and spall components. The results suggest that the single-fired explosions are surrogates for nuclear explosions in higher frequency bands (e.g., 6-8 Hz Pg/Lg discriminants). We have shown that the SPE shots, together with the mining explosions, are efficient sources of S-wave energy, and our next research stage is to postulate the possible sources contributing to the shear-wave energy.

  11. Adsorption of Clostridium thermocellum cellulases onto pretreated mixed hardwood, avicel, and lignin

    SciTech Connect (OSTI)

    Bernardez, T.D.; Lyford, K.; Hogsett, D.A.; Lynd, L.R. . Thayer School of Engineering)

    1993-09-20

    Adsorption of Avicel-hydrolyzing activity was examined with respect to: mixed hardwood flour pretreated with 1% sulfuric acid for 9 s at 220C (PTW220), lignin prepared from PTW220 by either acid or enzymatic hydrolysis, and Avicel. Experiments were conducted at 60C for all materials, and also at 25C for PTW220. Based on transient adsorption results and reaction rates, times were selected at which to characterize adsorption at 60C as follows: PTW220, 1 min; lignin, 30 min; and Avicel, 45 min. Similar results were obtained for adsorption of cellulase activity to PTW220 at 25 and 60C, and for lignin prepared by enzymatic and acid hydrolysis. For all materials, adsorption was described well by a Langmuir equation, although the reversibility of adsorption was not investigated. Langmuir affinity constants (L/g) were: PTW220, 109; lignin, 17.9; Avicel, 4.3; cellulose from PTW220, [ge]187. Langmuir capacity constants were 760 for PTW220 and 42 for Avicel; the cellulase binding capacity of lignin appeared to be very high under the conditions examined, and could not be determined. At low and moderate cellulase loadings at least, the majority of cellulase activity adsorbed to PTVV220 is bound to the cellulosic component. The results indicate that PTW220, and its cellulose component in particular, differ radically from Avicel with respect to adsorption. Avicel-hydrolyzing activity and CMC-hydrolyzing activities were found to bind to Avicel with a constant ratio of essentially one, consistent with adsorption of a multi-activity complex.

  12. Treatment of municipal landfill leachate using a combined anaerobic digester and activated sludge system

    SciTech Connect (OSTI)

    Kheradmand, S.; Karimi-Jashni, A.; Sartaj, M.

    2010-06-15

    The main objective of this study was to assess the feasibility of treating sanitary landfill leachate using a combined anaerobic and activated sludge system. A high-strength leachate from Shiraz municipal landfill site was treated using this system. A two-stage laboratory-scale anaerobic digester under mesophilic conditions and an activated sludge unit were used. Landfill leachate composition and characteristics varied considerably during 8 months experiment (COD concentrations of 48,552-62,150 mg/L). It was found that the system could reduce the COD of the leachate by 94% at a loading rate of 2.25 g COD/L/d and 93% at loading rate of 3.37 g COD/L/d. The anaerobic digester treatment was quite effective in removing Fe, Cu, Mn, and Ni. However, in the case of Zn, removal efficiency was about 50%. For the rest of the HMs the removal efficiencies were in the range 88.8-99.9%. Ammonia reduction did not occur in anaerobic digesters. Anaerobic reactors increased alkalinity about 3.2-4.8% in the 1st digester and 1.8-7.9% in the 2nd digester. In activated sludge unit, alkalinity and ammonia removal efficiency were 49-60% and 48.6-64.7%, respectively. Methane production rate was in the range of 0.02-0.04, 0.04-0.07, and 0.02-0.04 L/g COD{sub rem} for the 1st digester, the 2nd digester, and combination of both digesters, respectively; the methane content of the biogas varied between 60% and 63%.

  13. HD gas purification for polarized HDice targets production at Jefferson Lab

    SciTech Connect (OSTI)

    Whisnant, Charles; D'Angelo, Annalisa; Colaneri, Luca; Devilbiss, J.; Kageya, Tsuneo; Loving, D.A.; Lowry, Michael; Rizzo, Alessandro; Sandorfi, Andrew; Schaerf, Carlo; Storey, J.D.; Wallace, C.M.; Wei, Xiangdong; Zonta, Irene

    2014-06-01

    Solid, frozen-spin targets of molecular HD were #12;rst developed for nuclear physics by a collaboration between Syracuse University and Brookhaven National Lab. They have been successfully used in measurements with photon beams, #12;rst at the Laser-Electron-Gamma-Source [1] and most recently at Je#11;erson Lab during the running of the E06-101 (g14) experiment [2]. Preparations are underway to utilize the targets in future electron experiments after the completion of the 12 GeV JLab upgrade [3]. HD is an attractive target since all of the material is polarizable, of low Z, and requires only modest holding #12;elds. At the same time, the small contributions from the target cell can be subtracted from direct measurements. Reaching the frozen-spin state with both high polarization and a signi#12;cant spin relaxation time requires careful control of H2 and D2 impurities. Commercially available HD contains 0.5 - 2% concentrations of H2 and D2. Low-temperature distillation is required to reduce these concentrations to the 10􀀀4 level to enable useful target production. This distillation is done using a column #12;lled with heli-pack C [4] to give good separation e#14;ciency. Approximately 12 moles of commercial HD is condensed into the mechanically refrigerated system at the base temperature of 11K. The system is then isolated and the temperature stabilized at 18K producing liquid HD, which is boiled by a resistive heater. The circulation established by the boil-o#11; condensing throughout the column then #12;ltering back down produces a steady-state isotopic separation permitting the extraction of HD gas with very low H2 and D2 content. A residual gas analyzer initially monitors distillation. Once the H2 concentration falls below its useful operating range, samples are periodically collected for analysis using gas chromatography [5] and Raman scattering. Where the measurement techniques overlap, good agreement is obtained. The operation of the distillery and results of gas analysis will be discussed. References [1] Phy. Rev. Lett. 101 (2009) 172002. [2] www.jlab.org/exp_prog/proposals/06/PR-06-101.pdf [3] www.jlab.org/exp_prog/proposals/12/PR12-12-009.pdf, www.jlab.org/exp_prog/proposals/12/PR12-12-010.pdf, and www.jlab.org/exp_prog/proposals/11/PR12-11-111.pdf [4] Nucl. Inst. Meth. 664 (2012) 347, www.wilmad-labglass.com/Products/LG-6730-104/ [5] Rev. Sci. Instrum. 82, 024101 (2011).

  14. Developing regionalized models of lithospheric thickness and velocity structure across Eurasia and the Middle East from jointly inverting P-wave and S-wave receiver functions with Rayleigh wave group and phase velocities

    SciTech Connect (OSTI)

    Julia, J; Nyblade, A; Hansen, S; Rodgers, A; Matzel, E

    2009-07-06

    In this project, we are developing models of lithospheric structure for a wide variety of tectonic regions throughout Eurasia and the Middle East by regionalizing 1D velocity models obtained by jointly inverting P-wave and S-wave receiver functions with Rayleigh wave group and phase velocities. We expect the regionalized velocity models will improve our ability to predict travel-times for local and regional phases, such as Pg, Pn, Sn and Lg, as well as travel-times for body-waves at upper mantle triplication distances in both seismic and aseismic regions of Eurasia and the Middle East. We anticipate the models will help inform and strengthen ongoing and future efforts within the NNSA labs to develop 3D velocity models for Eurasia and the Middle East, and will assist in obtaining model-based predictions where no empirical data are available and for improving locations from sparse networks using kriging. The codes needed to conduct the joint inversion of P-wave receiver functions (PRFs), S-wave receiver functions (SRFs), and dispersion velocities have already been assembled as part of ongoing research on lithospheric structure in Africa. The methodology has been tested with synthetic 'data' and case studies have been investigated with data collected at an open broadband stations in South Africa. PRFs constrain the size and S-P travel-time of seismic discontinuities in the crust and uppermost mantle, SRFs constrain the size and P-S travel-time of the lithosphere-asthenosphere boundary, and dispersion velocities constrain average S-wave velocity within frequency-dependent depth-ranges. Preliminary results show that the combination yields integrated 1D velocity models local to the recording station, where the discontinuities constrained by the receiver functions are superimposed to a background velocity model constrained by the dispersion velocities. In our first year of this project we will (i) generate 1D velocity models for open broadband seismic stations in the western half of the study area (Eurasia and the Middle East) and (ii) identify well located seismic events with event-station paths isolated to individual tectonic provinces within the study area and collect broadband waveforms and source parameters for the selected events. The 1D models obtained from the joint inversion will then be combined with published geologic terrain maps to produce regionalized models for distinctive tectonic areas within the study area, and the models will be validated through full waveform modeling of well-located seismic events recorded at local and regional distances.

  15. T cells stimulate catabolic gene expression by the stromal cells from giant cell tumor of bone

    SciTech Connect (OSTI)

    Cowan, Robert W.; Juravinski Cancer Centre, 699 Concession St., Hamilton, ON, Canada L8V 5C2 ; Ghert, Michelle; Department of Surgery, McMaster University, 1280 Main St. W., Hamilton, ON, Canada L8S 4L8 ; Singh, Gurmit; Juravinski Cancer Centre, 699 Concession St., Hamilton, ON, Canada L8V 5C2

    2012-03-23

    Highlights: Black-Right-Pointing-Pointer Two T cell lines stimulate PTHrP, RANKL, MMP13 gene expression in GCT cell cultures. Black-Right-Pointing-Pointer CD40 expressed by stromal cells; CD40L detected in whole tumor but not cultures. Black-Right-Pointing-Pointer Effect of CD40L treatment on GCT cells increased PTHrP and MMP13 gene expression. Black-Right-Pointing-Pointer PTHrP treatment increased MMP13 expression, while inhibition decreased expression. Black-Right-Pointing-Pointer T cells may stimulate GCT stromal cells and promote the osteolysis of the tumor. -- Abstract: The factors that promote the localized bone resorption by giant cell tumor of bone (GCT) are not fully understood. We investigated whether T cells could contribute to bone resorption by stimulating expression of genes for parathyroid hormone-related protein (PTHrP), matrix metalloproteinase (MMP)-13, and the receptor activator of nuclear-factor {kappa}B ligand (RANKL). Two cell lines, Jurkat clone E6-1 and D1.1, were co-cultured with isolated GCT stromal cells. Real-time PCR analyses demonstrated a significant increase of all three genes following 48 h incubation, and PTHrP and MMP-13 gene expression was also increased at 24 h. Further, we examined the expression of CD40 ligand (CD40L), a protein expressed by activated T cells, and its receptor, CD40, in GCT. Immunohistochemistry results revealed expression of the CD40 receptor in both the stromal cells and giant cells of the tumor. RNA collected from whole GCT tissues showed expression of CD40LG, which was absent in cultured stromal cells, and suggests that CD40L is expressed within GCT. Stimulation of GCT stromal cells with CD40L significantly increased expression of the PTHrP and MMP-13 genes. Moreover, we show that inhibition of PTHrP with neutralizing antibodies significantly decreased MMP13 expression by the stromal cells compared to IgG-matched controls, whereas stimulation with PTHrP (1-34) increased MMP-13 gene expression. These results suggest that T cells may potentiate the catabolic effect of GCT.

  16. Electromagnetic Effects in SDF Explosions

    SciTech Connect (OSTI)

    Reichenbach, H; Neuwald, P; Kuhl, A L

    2010-02-12

    The notion of high ion and electron concentrations in the detonation of aluminized explosive mixtures has aroused some interest in electro-magnetic effects that the SDF charges might generate when detonated. Motivated by this interest we have started to investigate whether significant electro-magnetic effects show up in our small-scale experiments. However, the design of instrumentation for this purpose is far from straightforward, since there are a number of open questions. Thus the main aim of the feasibility tests is to find - if possible - a simple and reliable method that can be used as a diagnostic tool for electro-magnetic effects. SDF charges with a 0.5-g PETN booster and a filling of 1 g aluminum flakes have been investigated in three barometric bomb calorimeters with volumes ranging from 6.3 l to of 6.6 l. Though similar in volume, the barometric bombs differed in the length-to-diameter ratio. The tests were carried out with the bombs filled with either air or nitrogen at ambient pressure. The comparison of the test in air to those in nitrogen shows that the combustion of TNT detonation products or aluminum generates a substantial increase of the quasi-steady overpressure in the bombs. Repeated tests in the same configuration resulted in some scatter of the experimental results. The most likely reason is that the aluminum combustion in most or all cases is incomplete and that the amount of aluminum actually burned varies from test to test. The mass fraction burned apparently decreases with increasing aspect ratio L/D. Thus an L/D-ratio of about 1 is optimal for the performance of shock-dispersed-fuel combustion. However, at an L/D-ratio of about 5 the combustion still yields appreciable overpressure in excess of the detonation. For a multi-burst scenario in a tunnel environment with a number of SDF charges distributed along a tunnel section a spacing of 5 tunnel diameter and a fuel-specific volume of around 7 l/g might provide an acceptable compromise between optimizing the combustion performance and keeping the number of elementary charges low. Further tests in a barometric bomb calorimeter of 21.2 l volume were performed with four types of aluminum. The mass fraction burned in this case appeared to depend on the morphology of the aluminum particles. Flake aluminum exhibited a better performance than granulated aluminum with particle sizes ranging from below 25 {micro}m to 125 {micro}m for the coarsest material. In addition, a feasibility study on electro-magnetic effects from SDF charges detonated in a tunnel has been performed. A method was developed to measure the local, unsteady electro-conductivity in the detonation/combustion products cloud. This method proved to yield reproducible results. A variety of methods were tested with regard to probing electro-magnetic pulses from the detonation of SDF charges. The results showed little reproducibility and were small compared to the effect from pulsed high voltage discharges of comparatively small energy (around 32 J). Thus either no significant electromagnetic pulse is generated in our small-scale tests or the tested techniques have to be discarded as too insensitive or too limited in bandwidth to detect possibly very high frequency electro-magnetic disturbances.

  17. Water Extraction from Coal-Fired Power Plant Flue Gas

    SciTech Connect (OSTI)

    Bruce C. Folkedahl; Greg F. Weber; Michael E. Collings

    2006-06-30

    The overall objective of this program was to develop a liquid disiccant-based flue gas dehydration process technology to reduce water consumption in coal-fired power plants. The specific objective of the program was to generate sufficient subscale test data and conceptual commercial power plant evaluations to assess process feasibility and merits for commercialization. Currently, coal-fired power plants require access to water sources outside the power plant for several aspects of their operation in addition to steam cycle condensation and process cooling needs. At the present time, there is no practiced method of extracting the usually abundant water found in the power plant stack gas. This project demonstrated the feasibility and merits of a liquid desiccant-based process that can efficiently and economically remove water vapor from the flue gas of fossil fuel-fired power plants to be recycled for in-plant use or exported for clean water conservation. After an extensive literature review, a survey of the available physical and chemical property information on desiccants in conjunction with a weighting scheme developed for this application, three desiccants were selected and tested in a bench-scale system at the Energy and Environmental Research Center (EERC). System performance at the bench scale aided in determining which desiccant was best suited for further evaluation. The results of the bench-scale tests along with further review of the available property data for each of the desiccants resulted in the selection of calcium chloride as the desiccant for testing at the pilot-scale level. Two weeks of testing utilizing natural gas in Test Series I and coal in Test Series II for production of flue gas was conducted with the liquid desiccant dehumidification system (LDDS) designed and built for this study. In general, it was found that the LDDS operated well and could be placed in an automode in which the process would operate with no operator intervention or adjustment. Water produced from this process should require little processing for use, depending on the end application. Test Series II water quality was not as good as that obtained in Test Series I; however, this was believed to be due to a system upset that contaminated the product water system during Test Series II. The amount of water that can be recovered from flue gas with the LDDS is a function of several variables, including desiccant temperature, L/G in the absorber, flash drum pressure, liquid-gas contact method, and desiccant concentration. Corrosion will be an issue with the use of calcium chloride as expected but can be largely mitigated through proper material selection. Integration of the LDDS with either low-grade waste heat and or ground-source heating and cooling can affect the parasitic power draw the LDDS will have on a power plant. Depending on the amount of water to be removed from the flue gas, the system can be designed with no parasitic power draw on the power plant other than pumping loads. This can be accomplished in one scenario by taking advantage of the heat of absorption and the heat of vaporization to provide the necessary temperature changes in the desiccant with the flue gas and precipitates that may form and how to handle them. These questions must be addressed in subsequent testing before scale-up of the process can be confidently completed.