Sample records for davis cu csm

  1. Davis

    E-Print Network [OSTI]

    Kurz, R.; White, T.

    1982-01-01T23:59:59.000Z

    drunks in those days. By the way, I'm John Davis." He held out his hand. "Sweet, Phil Sweet." The handshake was strong and warm, as were the hours following, warm and full of comfortable comradeship. Davis, always a loner, unexplainably found himself... why he hadn't sent Sweet along with the other brawlers. He pushed his glasses back up on his nose and reached for a glass. "Thanks for the beer, Phil." Sweet smiled. "I owe you more than beer." He looked into Davis* eyes. "Don't you get tired...

  2. Sample.tex for the CSM Style File csm.sty A convenient template for typesetting

    E-Print Network [OSTI]

    Sample.tex for the CSM Style File csm.sty A convenient template. 1 #12; Line Spacing When you use the IEEE CSM template, you find that the line spacings pages of text. However, long* *er survey and tutorial papers may be considered. Please contact

  3. Christopher Davis

    Broader source: Energy.gov [DOE]

    Christopher Davis is the Principal Deputy Assistant Secretary for Congressional and Intergovernmental Affairs at the U.S. Department of Energy. Mr. Davis has over a dozen years of experience...

  4. CSM: Earth, Energy, Environment 2013 Annual Faculty

    E-Print Network [OSTI]

    colleges · Capital Programs and Academic Space ­ ~$70M in new Academic buildings ­ Continued pressure and expect/demand technology integrated into delivery ­ We have successfully navigated a difficult decade, and responsibility for developing a better world. #12;CSM: Earth, Energy, Environment Critical Questions to consider

  5. CSM RESEARCH INTERNSHIP POLICY External sponsors may support research and design projects by CSM students through Graduate or

    E-Print Network [OSTI]

    CSM RESEARCH INTERNSHIP POLICY External sponsors may support research and design projects by CSM) or Research Internships (RI). RF and RA appointments are for work done primarily on campus or under the direct in which CSM also is active. The sponsor will select the students to which internships are to be given

  6. Rachel Davis

    E-Print Network [OSTI]

    Phone: (765) 494-1423. Dept. Fax: (765) 494-0548. Office: 626 Mathematical Sciences Building. Email: davis705@math.purdue.edu. US Mail: Department of...

  7. Thomas Davis

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solidSynthesis ofwas published inFebruary 25,902ThisThomas Davis

  8. Rachel M Davis: home

    E-Print Network [OSTI]

    Rachel M Davis. PhD: University of Wisconsin 2013; Title: Golomb Visiting Assistant Professor; Research Interests: number theory and arithmetic geometry...

  9. PLASMA PHYSICS PPPL UC Davis

    E-Print Network [OSTI]

    PRINCETON PLASMA PHYSICS LABORATORY PPPL UC Davis PRINCETON PLASMA PHYSICS LABORATORY PPPL UC Davis. Domier and N.C. Luhmann, Jr. UC at Davis at Workshop on Long Time Simulations of Kinetic Plasmas April 21, 2006 Hyatt Regency, Dallas, TX #12;PRINCETON PLASMA PHYSICS LABORATORY PPPL UC Davis PRINCETON PLASMA

  10. Patrick B. Davis

    Office of Energy Efficiency and Renewable Energy (EERE)

    [[{"type":"media","view_mode":"media_large","fid":"719506","attributes":{"alt":"Photo of Patrick Davis","class":"media-image caption","style":"width: 160px; height: 216px; float: right;","typeof":...

  11. Ohio Nuclear Profile - Davis Besse

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

    Davis Besse" "Unit","Summer Capacity (MW)","Net Generation (Thousand MWh)","Summer Capacity Factor (Percent)","Type","Commercial Operation Date","License Expiration Date"...

  12. Page 1 of 2 Updated 06/28/2005 CSM Research Proposal

    E-Print Network [OSTI]

    Page 1 of 2 Updated 06/28/2005 CSM Research Proposal Environmental Health & Safety Checklist 1. Have you planned to provide health/safety services to protect lab workers? o The OSHA laboratory safety that laboratory safety standards are developed for each project and that the standards are met. 2. Have you

  13. Certified Professional in Supply Management (CPSM) & Certified in Supply Management (CSM) Exam Preparation Series

    E-Print Network [OSTI]

    Lin, Xiaodong

    -Taking Hints and Tips Exam 2 Content Forecasting Logistics Materials and Inventory Management OrganizationCertified Professional in Supply Management (CPSM) & Certified in Supply Management (CSM) Exam for member companies of the Rutgers Center for Supply Chain Management. $425 for non-members This one day

  14. ITS-Davis Biennial Report 2008

    E-Print Network [OSTI]

    Sperling, Dan

    2009-01-01T23:59:59.000Z

    architecture, explored Scotland, Germany, Denmark, and Sweden. Handy, who directs the UC Davis Sustainable

  15. PS-wave moveout inversion for tilted TI media: A physical-modeling study Pawan Dewangan and Ilya Tsvankin , Center for Wave Phenomena, Colorado School of Mines (CSM),

    E-Print Network [OSTI]

    PS-wave moveout inversion for tilted TI media: A physical-modeling study Pawan Dewangan and Ilya Tsvankin , Center for Wave Phenomena, Colorado School of Mines (CSM), Mike Batzle, Center for Rock Abuse, CSM, Kasper van Wijk, Physical Acoustics Laboratory, CSM, and Matt Haney, Center for Wave Phenomena

  16. Karina Davis, '08 Marigat, Kenya

    E-Print Network [OSTI]

    Karina Davis, '08 Marigat, Kenya This past May I had the amazing opportunity to spend six weeks living and working with four Franciscan nuns in Marigat, Kenya. Marigat is a small town located in Kenya

  17. Searching for light echoes due to CSM in SN Ia spectra

    E-Print Network [OSTI]

    Marino, Sebastin; Frster, Francisco; Folatelli, Gastn; Hamuy, Mario; Hsiao, Eric

    2015-01-01T23:59:59.000Z

    We present an analytical model for light echoes (LEs) coming from circumstellar material (CSM) around Type Ia Supernovae (SNe Ia). Using this model we find two spectral signatures at 4100 {\\AA} and 6200 {\\AA} that are useful to identify LEs during the Lira law phase (between 35 and 80 days after maximum light) coming from nearby CSM at distances of 0.01-0.25 pc. We analyze a sample of 89 SNe Ia divided in two groups according to their B-V decline rate during the Lira law phase, and search for LEs from CSM interaction in the group of SNe with steeper slopes by comparing their spectra with our LE model. We find that a model with LEs + pure extinction from interstellar material (ISM) fits better the observed spectra than a pure ISM extinction model that is constant in time, but we find that a decreasing extinction alone explains better the observations without the need of LEs, possibly implying dust sublimation due to the radiation from the SN.

  18. Davis Bacon | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014ContributingDOE ContractDepartment of4DatabasesDavis Bacon Davis

  19. QER- Comment of Brenda Davies

    Broader source: Energy.gov [DOE]

    To Whom it May Concern, we are seeking fix-it-first, reduce demand, and clean energy future is the kind of energy infrastructure Massachusetts wants and needs. Not fracking, we won't allow it! -- Brenda K Davies, OTR/L Outdoor Access Providing recreation for all! YES WE CAN!!

  20. Superconductors described with CSM.(a new paper, 2008-10-16)

    E-Print Network [OSTI]

    Tian De Cao

    2008-10-16T23:59:59.000Z

    The properties of the known superconductors can be explained with the correlations dominated superconducting mechanism (CSM). The correlations have the spin correlation, the charge correlation and the spin-charge correlation, and their strengths can be described by the related correlation lengths in their correlation functions. Our evaluation from many superconductors is that superconductivities occur if both the spin correlation and the charge correlation are stronger, and the calculation of a Hubbard model showed that the spin-charge correlation may govern superconductivities1. Afterwards, this mechanism has led a model which includes various superconductivities and magnetisms, and the relation between superconductivities and magnetisms can be understood on this model2 (these results have been shown by calculations). This mechanism is very practical, for example, to turn a material into a superconductor or increase the Tc of a superconductor, what we will do is to increase the spin-charge correlation. In this letter, we first describe the relations between the spin-charge correlation, the spin correlation and the charge correlation, take these relations as the basis of constructing a new phase diagram, and then classify the known superconductors into various sections in this phase diagram. This letter also gives a new explanation about the pressure effect on Tc, the isotope effect on Tc and the pairing symmetry with the CSM.

  1. TAP Webinar: Davis-Bacon Act Compliance

    Broader source: Energy.gov [DOE]

    This webinar, held on Nov. 18, 2014, offered information for Energy Department grantees, sub-grantees, and their contractors on complying with Davis-Bacon Act requirements.

  2. Sandia National Laboratories: University of California Davis

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

    Analysis, Systems Engineering Sandian Dean Buchenauer (in Sandia's Hydrogen and Metallurgy Science Dept.) and Professor David Q. Hwang (UC Davis, School of Engineering) will...

  3. COMMUNITY SPACE MONITOR (CSM) APPLICATION Thank you for applying for the Community Space Monitor position with the Residence Life department.

    E-Print Network [OSTI]

    COMMUNITY SPACE MONITOR (CSM) APPLICATION Thank you for applying for the Community Space Monitor, .docx) and PDF (.pdf) format only. #12;Residence Life Updated August 2014 -1 of 3- Community Space Monitor: Job Description IDENTIFICATION Position Title: Community Space Monitor Department: Residence Life

  4. Davis Bacon Act Applicability to Smart Grid Investment Grant...

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

    Davis Bacon Act Applicability to Smart Grid Investment Grant (SGIG) Program Grants Davis Bacon Act Applicability to Smart Grid Investment Grant (SGIG) Program Grants Letter to...

  5. Recent Agricultural Ergonomics Research at UC Davis

    E-Print Network [OSTI]

    Nguyen, Danh

    Page 1 Recent Agricultural Ergonomics Research at UC Davis Fadi Fathallah Biological and Agricultural Engineering UC Agricultural Ergonomics Research Center Western Center for Agricultural Health and Safety WCAHS Seminar, December 5, 2011 Recent Agricultural Ergonomics Research at UC Davis Fadi Fathallah

  6. housing.ucdavis.edu Living at UC Davis

    E-Print Network [OSTI]

    Hernes, Peter J.

    housing.ucdavis.edu Living at UC Davis Apartments Living at UC Davis STUDENT HOUSING #12;2 Every year, Student Housing is home to over 6000 UC Davis students, over 500 of whom are transfer students and students participating in graduate and professional programs. UC Davis also provides housing that is ideal

  7. ITS-Davis Biennial Report 2008

    E-Print Network [OSTI]

    Sperling, Dan

    2009-01-01T23:59:59.000Z

    in medium-size cities, and hybrid vehicle designs for China.Axsen, ITS-Davis, Hybrid Vehicles and the Neighbor Effect:policy makers, plug-in hybrid vehicle enthusiasts, and

  8. Computational Science and Engineering at UC Davis

    E-Print Network [OSTI]

    Islam, M. Saif

    diagnos- tics; computational molecular biology; visualization and virtual reality rendering for the study be the objective of this Initiative to create an environment at UC Davis that will enable world-class education

  9. ITS-Davis Biennial Report 2008

    E-Print Network [OSTI]

    Sperling, Dan

    2009-01-01T23:59:59.000Z

    Jie Zheng Weiyuan Zhu Sponsors BMW BP Caltrans CARB ChevronCorporate Af?liate Program BMW STEPS Program BP AmericaFreymann, and Bernardo Lopez of BMW visit ITS-Davis (with

  10. Space-Time Stereo James DavisJames Davis Honda Research InstituteHonda Research Institute

    E-Print Network [OSTI]

    O'Brien, James F.

    Space-Time Stereo James DavisJames Davis ­­ Honda Research InstituteHonda Research Institute Ravi ­­ Princeton UniversityPrinceton University DiegoDiego NehabNehab ­­ Honda & PrincetonHonda & Princeton

  11. housing.ucdavis.edu Living at UC Davis

    E-Print Network [OSTI]

    Hernes, Peter J.

    housing.ucdavis.edu Living at UC Davis Residence Halls Living at UC Davis STUDENT HOUSING #12;2 Every year, Student Housing is home to over 6000 UC Davis students, most of whom are first-year freshmen and transfer students who live in the residence halls. Living in Student Housing is not required; however, most

  12. PEV Infrastructure Needs UC Davis Policy Institute

    E-Print Network [OSTI]

    California at Davis, University of

    ,000 sales in 2012, ramp up to 20,000/yr in 2013 2012 Honda Fit EV 2012 Tesla Model S Infrastructure needs1 PEV Infrastructure Needs UC Davis Policy Institute Policy Forum Series: ZEVs June 13, 2012 www into an increasingly clean, efficient, reliable, and safe electricity grid · PEVs advance energy security, air quality

  13. Barbara C. Sorkin Cindy D. Davis

    E-Print Network [OSTI]

    Bandettini, Peter A.

    of Contents News You Can Use New Funding Opportunities for Research ODS Staff News Recent ODS Staff Publications Recent ODS Staff Presentations Upcoming Events Read More at ODS Health Information News and Events Research and Funding About ODS Two New Staff Scientists Join ODS: Barbara Sorkin and Cindy Davis In our

  14. UC Davis Health System Strategic Planning Update

    E-Print Network [OSTI]

    Todd, Brian

    under way Threats and uncertainties - Health-care reform - State support - Retirement benefits; UCOP of primary and tertiary/quaternary care that UC Davis Health System will provide in the future. 10. Leverage to and play a leading role in designing health reform. PART A. INTERVIEW CONCLUSIONS - Recommended Strategic

  15. UC Davis Policy and Procedure Manual Introduction

    E-Print Network [OSTI]

    California at Davis, University of

    UC Davis Policy and Procedure Manual Introduction Development and Management of Campus Sections Exhibit B, Policy Development Best Practices Exhibit C, New Policy Development Plan Exhibit D of the Chancellor and Provost Source Document: N/A 1 of 5 Exhibit A, Structure for Policy and Procedure Manual

  16. UC Davis Western Cooling Challenge Program Requirements

    E-Print Network [OSTI]

    California at Davis, University of

    Davis, is a multiple winner competition that encourages HVAC manufactures to develop climate of such technologies in the market place. Their interest in the Challenge is motivated by state and corporate goals is to push beyond prototype demonstration of high efficiency cooling equipment by advancing the market

  17. TAP Webinar: Davis-Bacon Act Compliance

    Broader source: Energy.gov [DOE]

    This TAP webinar held on Nov. 18, 2014 from 1:00 p.m. - 3:00 p.m. Eastern Standard Time. It will offer information for Energy Department grantees, sub-grantees, and their contractors on complying with Davis-Bacon Act requirements.

  18. UC Davis Academic Personnel Manual Recruitment

    E-Print Network [OSTI]

    Islam, M. Saif

    UC Davis Academic Personnel Manual Recruitment UCD Appendix III-A Date: 6/22/99 Supersedes: 6/12/95 Responsible Department: Academic Personnel Source Document: UC APM-550, APM-560, and APM-561 1 of 4 Exhibit A. Household goods--articles used for maintaining a household (e.g., appliances, furniture, artwork or other

  19. Davis PV plant operation and maintenance manual

    SciTech Connect (OSTI)

    NONE

    1994-09-01T23:59:59.000Z

    This operation and maintenance manual contains the information necessary to run the Photovoltaics for Utility Scale Applications (PVUSA) test facility in Davis, California. References to more specific information available in drawings, data sheets, files, or vendor manuals are included. The PVUSA is a national cooperative research and demonstration program formed in 1987 to assess the potential of utility scale photovoltaic systems.

  20. University of California Davis West Village: The Largest Planned...

    Office of Environmental Management (EM)

    stories UC Davis net zero energy community; energy efficiency in buildings; PV and photovoltaics. webinarucdavidwestvillage.pdf More Documents & Publications Kaupuni Village: A...

  1. Davis-Bacon Act - Under the American Recovery and Reinvestment...

    Energy Savers [EERE]

    gtp2012peerreviewdbanathwani.pdf More Documents & Publications DAVIS-BACON ACT WAGE RATES FOR ARRA-FUNDED STATE ENERGY PROGRAM (SEP) PROJECTS INCLUDING RESIDENTIAL...

  2. The Facts On Electric Vehicles: Interview with Pat Davis

    Broader source: Energy.gov [DOE]

    Pat Davis, the Director of our Vehicle Technologies Program, doles out the facts on the costs and benefits of owning an electric vehicle.

  3. The UC Davis Emerging Lithium Battery Test Project

    E-Print Network [OSTI]

    Burke, Andy; Miller, Marshall

    2009-01-01T23:59:59.000Z

    The UC Davis Emerging Lithium Battery Test Project Andrewto evaluate emerging lithium battery technologies for plug-vehicles. By emerging lithium battery chemistries were meant

  4. West Virginia University 1 Davis College of Agriculture, Natural Resources,

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    West Virginia University 1 Davis College of Agriculture, Natural Resources, and Design Majors The Davis College of Agriculture, Natural Resources, and Design is organized into five divisions: Animal and Nutritional Sciences; Design and Merchandising; Forestry and Natural Resources; Plant and Soil Sciences

  5. West Virginia University 1 Davis College of Agriculture, Natural Resources,

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    and Food Science, Plant and Soil Sciences Doctor of Philosophy in Genetics and Developmental Biology and resources from which we produce our food, fiber, wood, energy, and leisure activities. The Davis College management, organic production, horticulture, agronomy, entomology, and soils. Graduate students in the Davis

  6. Davis Bacon Frequently Asked Questions (FAQs)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197 This work wasofFederalDepartment's6, 2015SheeleyDavis

  7. Fermilab Today | University of California, Davis Profile

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist. CategoryFebruaryFebruaryInThe,Michigan0 Dec.Davis July 16, 2009

  8. Davie, Florida: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility Database DataDatatechnic International SA JumpLaboratoryDavie,

  9. Davis Energy Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 No revision hasda62829c05b No revision hasDatabus -DavenportDavis

  10. UC DAVIS College of engIneerIng 2012 13 Annual report

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    and industry, and included speakers from the Lawrence Livermore National Laboratory, General Motors, CarnegieUC DAVIS College of engIneerIng 2012 13 Annual report #12;College of engineering, UC Davis a relations College of engineering, UC Davis 1 Shields Avenue, Kemper Hall 1027 Davis, CA 95616 530

  11. NREL: Biomass Research - Mark F. Davis, Ph.D.

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

    (QTLs) in poplar and loblolly pine. Dr. Davis has more than 20 years experience in the biomass conversion area and has authored more than 50 publications and book chapters. Learn...

  12. Updated 1-14 Ronald J. Davis, Jr.

    E-Print Network [OSTI]

    with industry, and programs for continuous improvement including Lean Six Sigma. In November of 2005 Mr. Davis for Installation Management, Army Management Staff College (2008); Lean Six Sigma Executive Green Belt (2007

  13. VBU-0083- In the Matter of S. R. Davis

    Broader source: Energy.gov [DOE]

    S. R. Davis, a former employee of Fluor Fernald, Inc. (Fluor), a Department of Energy (DOE) contractor, appeals the DOE Ohio Field Offices (OFO) dismissal of the whistleblower complaint against...

  14. Sense of Place - Alberta, Canada by Beverly Sandalack, Ann Davis, Len Novak and Bob Sandford [EDRA/Places Awards 2006 -- Planning

    E-Print Network [OSTI]

    Sullivan, Lisa

    2006-01-01T23:59:59.000Z

    Canada Beverly Sandalack, Ann Davis, Len Novak, and Bobproducts and activities. Ann Davis, Director of the Nickle

  15. UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE...

    Energy Savers [EERE]

    UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence Presentation...

  16. Davis-Bacon Act Wage Rates for ARRA-Funded State Energy Program...

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

    Davis-Bacon Act Wage Rates for ARRA-Funded State Energy Program Projects Involving Residential Weatherization Work Davis-Bacon Act Wage Rates for ARRA-Funded State Energy Program...

  17. Davis County, Utah: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility Database DataDatatechnic International SAKentucky: EnergyDavisDavis

  18. randy Davis, an MPH Bstudent in the Health

    E-Print Network [OSTI]

    Nurse Anesthesia Program at the LSUHSC School of Nursing has been approved by the Council on Accreditation of Nurse Anesthesia Educational Programs (COA). The Nurse Anesthesia program at LSUHSC's nursing Anesthesia program approved See Nursing, page 2 Brandy Davis & Carol Solomon Dr. Melinda Sothern #12;2 Dr

  19. Student Affairs Supporting the Vision of UC Davis

    E-Print Network [OSTI]

    Ferrara, Katherine W.

    that promote student learning To provide seamless systems that advance transitions and success To foster programs focused on mentorship, leadership and career development. Students engaged in activities outsideStudent Affairs Supporting the Vision of UC Davis Annual Report, 2010-2011 #12;STUDENT AFFAIRS

  20. Postdoctoral Position in Experimental Neutrino Physics at UC Davis

    E-Print Network [OSTI]

    Liu, Kai

    Postdoctoral Position in Experimental Neutrino Physics at UC Davis The experimental Neutrinos physics is required. Double Chooz is a reactor neutrino oscillation experiment that seeks to measure on the data analysis. The Long Baseline Neutrino Experiment (LBNE) is a next-generation oscillation experiment

  1. Co-Ops Handbook UC Davis Student Housing 2014 -2015

    E-Print Network [OSTI]

    Hernes, Peter J.

    Co-Ops Handbook UC Davis Student Housing 2014 - 2015 Alcohol - Residents and visitors must abide as any area outside of the house, including the parking lot or gardens. Alcohol may be consumed Student Housing. Student Housing will verify the applicants' student status and determine eligibility

  2. UC Davis 2003 LRDP Final Environmental Impact Report Addendum #1

    E-Print Network [OSTI]

    California at Davis, University of

    UC Davis 2003 LRDP Final Environmental Impact Report Addendum #1 November 2006 Page 1 1 FINAL ADDENDUM #1 TO THE 2003 LONG RANGE DEVELOPMENT PLAN ENVIRONMENTAL IMPACT REPORT (State Clearinghouse No ("University") certified the Final Environmental Impact Report ("Final EIR") (State Clearinghouse Number

  3. University of California, Davis, Health System Office of Medical Education

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    University of California, Davis, Health System Office of Medical Education Exhibitor Confirmation' tabletop or equivalent floor space. o Vendors provide their own electrical cords or pay for equipment provided by conference site AV services. o Decorating, security guard, internet and electricity

  4. Laser Frequency Stabilization with Optical Cavities Anya M. Davis

    E-Print Network [OSTI]

    Blinov, Boris

    Laser Frequency Stabilization with Optical Cavities Anya M. Davis Walla Walla University University Effective laser cooling requires the laser's frequency to be precise, with a frequency drift of no more than lasers for correcting frequency drift. In the University of Washington Quantum Computing with Trapped

  5. University of California, Davis UnDergraDUateaDmission2015

    E-Print Network [OSTI]

    Ullrich, Paul

    Plant Sciences Sustainable Agriculture and Food Systems Sustainable Environmental Design Textiles among america's "ten Coolest schools" for environmental sustainability (Sierra magazine 2013) TOP 50.ucdavis.edu/programs Challenging academics. Life-changing opportunities. Global impact. UC Davis prepares you to be successful

  6. TERRORISM AND WAR (SAS 7) UC Davis; Spring, 2013

    E-Print Network [OSTI]

    Seybold, Steven J.

    1 TERRORISM AND WAR (SAS 7) UC Davis; Spring, 2013 INSTRUCTORS OFFICE HOUR (VIRTUAL) Prof. James R to varying degrees in major conflicts around the world, issues of terrorism and war are heavily debated deeply about terrorism and war and question your assumptions. You will be asked to understand

  7. University of California, Davis Electrical and Computer Engineering

    E-Print Network [OSTI]

    Kolner, Brian H.

    AGENDA University of California, Davis Electrical and Computer Engineering Industrial Affiliates, Physical Sciences, IBM Research, T.J. Watson Research Center In Quest of the "Next Switch": Prospects, Industrial Affiliates Committee 8:50 a.m. - 9:15 a.m. Chair's Report ECE Department Chair, Professor Richard

  8. Reply to Davies: Hydraulic fracturing remains a possible mechanism for

    E-Print Network [OSTI]

    Jackson, Robert B.

    LETTER Reply to Davies: Hydraulic fracturing remains a possible mechanism for observed methane in aquifers overlying the Marcellus formation but asserts that we prematurely ascribed its cause to hydraulic mechanisms were leaky gas well casings and the possibility that hydraulic fracturing might generate new

  9. UC Davis Personnel Policies for Staff Members Introduction

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    Resources & Risk Management. Note 6--Distribution. Personnel Policies for Staff Members is a public documentUC Davis Personnel Policies for Staff Members Introduction Date: 6/3/02 Supersedes: New Responsible Department: Human Resources Source Document: UC Introduction 1 of 1 Note 1--Employment by Statute. A public

  10. DocumentedClinicalExperienceForm-PSTP University of California, Davis

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    DocumentedClinicalExperienceForm-PSTP University of California, Davis School of Medicine, Registrar's Office Documented Clinical Experience Form- PSTP 4610 X Street, Suite 1208, Sacramento CA 95817 of their clinical experience. Please, contact the Program Manager to initiate this process. The UCD School

  11. DocumentedClinicalExperience University of California, Davis

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    DocumentedClinicalExperience University of California, Davis School of Medicine, Registrar's Office Documented Clinical Experience OTHER 4610 X Street, Suite 1208, Sacramento CA 95817-2200 / Phone: (916) 734, contact your Program Manager to initiate this process and for assistance in picking an appropriate

  12. Four CSM students from the REMRSEC attended the press conference held by Sen. Michael Bennet (at the request of his staff) to unveil a report from Coloradans for an Innovation Economy. The report discussed eco-

    E-Print Network [OSTI]

    Four CSM students from the REMRSEC attended the press conference held by Sen. Michael Bennet (at, Chemical Engineering Postdoctoral Research Associate. The students were featured by Senator Bennet as important to the future of innovation in Colorado. They got to meet and speak with Senators Bennet and Udall

  13. admissions.ucdavis.edu DOES UC DaviS HavE a "PRE-BUSiNESS" PROGRaM?

    E-Print Network [OSTI]

    California at Davis, University of

    prerequisites for today's effective managers--have expanded in both necessity and value. Future managers must Administration (MBA) might have earned an undergraduate degree in engineering. Usually when students refer). UC Davis also offers a minor in technology management, offered through the campus' Graduate School

  14. DAVIS-BACON ACT WAGE RATES FOR ARRA-FUNDED ENERGY EFFICIENCY...

    Energy Savers [EERE]

    (EECBG) PROGRAM PROJECTS INCLUDING RESIDENTIAL WEATHERIZATION WORK DAVIS-BACON ACT WAGE RATES FOR ARRA-FUNDED ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANT (EECBG) PROGRAM...

  15. DAVIS-BACON ACT WAGE RATES FOR ARRA-FUNDED STATE ENERGY PROGRAM...

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

    PROGRAM (SEP) PROJECTS INCLUDING RESIDENTIAL WEATHERIZATION WORK DAVIS-BACON ACT WAGE RATES FOR ARRA-FUNDED STATE ENERGY PROGRAM (SEP) PROJECTS INCLUDING RESIDENTIAL...

  16. NNSA Welcomes Brig. Gen. Stephen L. Davis as New Principal Assistant...

    National Nuclear Security Administration (NNSA)

    Brig. Gen. Davis earned his commission through the Air Force Officers' Training School in 1989. He has served in a variety of assignments including ICBM and space...

  17. Redelivery of IMPROVE Data, 2000-2004 In October 2005 UC Davis resubmitted all of the IMPROVE aerosol data for

    E-Print Network [OSTI]

    Fischer, Emily V.

    beginning in December 2001, when UC Davis ceased using PIXE and conducted all elemental analyses using XRF with the XRF. UC Davis had neglected to apply the corrections once the switch to XRF was made but decided

  18. UC Davis Student Services Fee (excludes Mental Health funds) Student Services and Fees Administrative Advisory Committee

    E-Print Network [OSTI]

    Pasternack, Gregory B.

    UC Davis Student Services Fee (excludes Mental Health funds) Student Services and Fees Management Capital Projects 2 943,666.00$ (2,807.79)$ (946,473.79)$ -$ Child Care 45,325.16$ 144,957.08$ 99 and Institutional Analysis #12;UC Davis Student Services Fee (excludes Mental Health funds) Student Services

  19. UC Davis Policy and Procedure Manual Chapter 290, Health and Safety Services

    E-Print Network [OSTI]

    Yoo, S. J. Ben

    UC Davis Policy and Procedure Manual Chapter 290, Health and Safety Services Section 65, Hazardous or injury caused by hazardous chemicals. Additional regulations for the UCD Medical Center are available maintained on UC Davis properties or in surrounding areas. 3. The environment. B. Emergencies involving

  20. arXiv:hep-ph/9704410v127Apr1997 University of California -Davis

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    .E. Haberc and J. Kalinowskib,d a Davis Institute for High Energy Physics, University of California, Davis, CA, USA b Institute of Theoretical Physics, Warsaw University, Warsaw, Poland c University on mhSM which has been increasing as higher energy data becomes available. For example, the latest ALEPH

  1. Gestural Cohesion for Topic Segmentation Jacob Eisenstein and Regina Barzilay and Randall Davis

    E-Print Network [OSTI]

    Barzilay, Regina

    Gestural Cohesion for Topic Segmentation Jacob Eisenstein and Regina Barzilay and Randall Davis Massachusetts Ave., Cambridge MA 02139 {jacobe, regina, davis}@csail.mit.edu Abstract This paper explores-defined discourse segments. An advan- tage of this view is that gestures can be brought to bear on discourse

  2. A review of "Oliver Cromwell." by J.C. Davis

    E-Print Network [OSTI]

    Brett Parker

    2002-01-01T23:59:59.000Z

    108 SEVENTEENTH-CENTURY NEWS J.C. Davis. Oliver Cromwell. New York: Oxford University Press, 2001. i + 243 pp. $19.95. Review by BRETT PARKER, UNIVERSITY OF ALABAMA. Oliver Cromwell has never suffered from a lack of histo- riographical... and destroyer, all of which, unfortunately, have stemmed from the myopic view that for whatever else he was, his force of personality and protean qualities informed history more than history, in all its complexity, informed his public life. This is a pitfall J.C...

  3. Jefferson Davis County, Mississippi: Energy Resources | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtelInterias SolarJane Capital4.1672949°,Information Davis County,

  4. Jefferson Davis Parish, Louisiana: Energy Resources | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtelInterias SolarJane Capital4.1672949°,Information Davis

  5. Davis Bacon Frequently Asked Questions (FAQs) | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0and Transparency,8-9612-985-2007SupplementalDaniel YerginDavidDavidDavis

  6. Raymond Davis Jr., Solar Neutrinos, and the Solar Neutrino Problems

    Office of Scientific and Technical Information (OSTI)

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

  7. Davis County, Iowa: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility Database DataDatatechnic International SAKentucky: EnergyDavis

  8. Thermochemical process for recovering Cu from CuO or CuO.sub.2

    DOE Patents [OSTI]

    Richardson, deceased, Donald M. (late of Oak Ridge, TN); Bamberger, Carlos E. (Oak Ridge, TN)

    1981-01-01T23:59:59.000Z

    A process for producing hydrogen comprises the step of reacting metallic Cu with Ba(OH).sub.2 in the presence of steam to produce hydrogen and BaCu.sub.2 O.sub.2. The BaCu.sub.2 O.sub.2 is reacted with H.sub.2 O to form Cu.sub.2 O and a Ba(OH).sub.2 product for recycle to the initial reaction step. Cu can be obtained from the Cu.sub.2 O product by several methods. In one embodiment the Cu.sub.2 O is reacted with HF solution to provide CuF.sub.2 and Cu. The CuF.sub.2 is reacted with H.sub.2 O to provide CuO and HF. CuO is decomposed to Cu.sub.2 O and O.sub.2. The HF, Cu and Cu.sub.2 O are recycled. In another embodiment the Cu.sub.2 O is reacted with aqueous H.sub.2 SO.sub.4 solution to provide CuSO.sub.4 solution and Cu. The CuSO.sub.4 is decomposed to CuO and SO.sub.3. The CuO is decomposed to form Cu.sub.2 O and O.sub.2. The SO.sub.3 is dissolved to form H.sub.2 SO.sub.4. H.sub.2 SO.sub.4, Cu and Cu.sub.2 O are recycled. In another embodiment Cu.sub.2 O is decomposed electrolytically to Cu and O.sub.2. In another aspect of the invention, Cu is recovered from CuO by the steps of decomposing CuO to Cu.sub.2 O and O.sub.2, reacting the Cu.sub.2 O with aqueous HF solution to produce Cu and CuF.sub.2, reacting the CuF.sub.2 with H.sub.2 O to form CuO and HF, and recycling the CuO and HF to previous reaction steps.

  9. Quantum Linear Gravity in de Sitter Universe II: On Bunch-Davies vacuum state

    E-Print Network [OSTI]

    M. V. Takook; S. Rouhani

    2015-02-17T23:59:59.000Z

    In de Sitter ambient space formalism, the linear gravity can be written in terms of a minimally coupled scalar field and a polarization tensor. In this formalism, the minimally coupled massless scalar field can be quantized on Bunch-Davies vacuum state, that preserves the de Sitter invariant, the analyticity and removes the infrared divergence. The de Sitter quantum linear gravity is then constructed on Bunch-Davis vacuum state, which is also covariant, analytic and free of any infrared divergence. We conclude that the unique Bunch-Davies vacuum states can be used for construction of quantum field theory in de Sitter universe.

  10. Modeling Ventilation in Multifamily Buildings John Markley, University of California, Davis -Western Cooling Efficiency Center

    E-Print Network [OSTI]

    California at Davis, University of

    Modeling Ventilation in Multifamily Buildings John Markley, University of California, Davis Efficiency Center Garth Torvestad, Benningfield Group, inc. ABSTRACT Proper ventilation is an essential that require special consideration in order to avoid excessive ventilation and energy waste. Two issues

  11. A review of "The Quakers in English Society 1655-1725." by Adrian Davies

    E-Print Network [OSTI]

    Kate Peters

    2002-01-01T23:59:59.000Z

    valuable resource for university libraries. Adrian Davies. The Quakers in English Society 1655-1725. Oxford: Clarendon, 2000. xvi + 262 pp. + 6 illus. ?40.00. Review by KATE PETERS, UNIVERSITY COLLEGE LONDON. This book is an impressive expansion...

  12. ALL DESIGN TECHNOLOGY LIVING TRANSPORTATION ENERGY SCIENCE BUSINESS PODCASTS Alex Davies

    E-Print Network [OSTI]

    Printing Can Do From hermit crab shells to moon bases, 3D printing may remake the world. by Lloyd Alter wave in tech, making gadgets greener along the way. by Alex Davies in Gadgets 19 Amazing Things 3D

  13. @FrankKlotzNNSA Welcome aboard Brig. Gen. Stephen L. Davis--an...

    National Nuclear Security Administration (NNSA)

    L. Davis--an outstanding leader to help guide our Stockpile Stewardship Program http:1.usa.gov1sDVbaG | National Nuclear Security Administration Facebook Twitter Youtube Flickr...

  14. A review of "Chivalry and Romance in the English Renaissance." by Alex Davis

    E-Print Network [OSTI]

    Eugene D. Hill

    2004-01-01T23:59:59.000Z

    anachronism? (37)? has seriously misled scholars. Reading Cervantes? Don in this 10 SEVENTEENTH-CENTURY NEWS fashion, as ?an icon of historical discontinuity? (109), misconstrues that character, applying (Davis claims) eighteenth-century constructions...

  15. Uranium occurrence in igneous rocks of the central Davis Mountains, west Texas

    E-Print Network [OSTI]

    Schaftenaar, Wendy Elizabeth

    1982-01-01T23:59:59.000Z

    of MASTER OF SCIENCE December 1982 Major Subject: Geology URANIUM OCCURRENCE IN IGNEOUS ROCKS OF THE CENTRAl DAVIS MOUNTAINS, WEST TEXAS A Thesis WENDY EI. IZABETH SCHAFTENAAR Approved as to style and content by: Chairman of Committee) (Member...) (Member) (Member) (He d f epar ent) December 1962 ABSTRACT Uranium Occurrence in Igneous Rocks of the Central Davis Mountains, West Texas. (December 1982) Wendy Elizabeth Schaftenaar, B. A. , Hope College Chairman of Advisory Cosooittee: Dr. Thomas...

  16. Military and administrative reforms instituted by Secretary of War Jefferson Davis, 1853-1857

    E-Print Network [OSTI]

    Prickett, Arthur Lea

    1966-01-01T23:59:59.000Z

    met, it nominated James K. Polk instead. of either Van Buren or Calhoun. Notwithstanding an avowed preference for John C. Calhoun, Davis enthusiastically campaigned for the party's nominee. The Mississippian's ability as a speaker made him..., President James K. Polk offered to commission the hero oi' 36 Buena Vista as a brigadier of volunteers. Although flattered by the. President's offer, Davis informed the Chief Executive that he could not accept the commission. The former congressman...

  17. www.vacet.org E. WES BETHEL (LBNL), CHRIS JOHNSON (UTAH), KEN JOY (UC DAVIS), SEAN AHERN (ORNL), VALERIO PASCUCCI (LLNL),

    E-Print Network [OSTI]

    Utah, University of

    www.vacet.org E. WES BETHEL (LBNL), CHRIS JOHNSON (UTAH), KEN JOY (UC DAVIS), SEAN AHERN (ORNL (LLNL) E. WES BETHEL (LBNL), CHRIS JOHNSON (UTAH), KEN JOY (UC DAVIS), SEAN AHERN (ORNL), VALERIO

  18. Dept. No. Dept. Name Representative Dept. No. Dept. Name Representative 107 Anthropology Ami Patel 325 Center for Study of Religion Zack Davis

    E-Print Network [OSTI]

    Environ. Inst. Tracy Tahoun 136 Comparative Literature Zack Davis 346 Lewis-Sigler Institute/Genomics June

  19. UC DAVIS CUPA SELF AUDIT CHECKLIST 1. Are chemical hazardous waste containers disposed of through Yes No NA

    E-Print Network [OSTI]

    Kolner, Brian H.

    UC DAVIS CUPA SELF AUDIT CHECKLIST 1. Are chemical hazardous waste containers disposed of through days if 1 pound or 1 quart of acutely hazardous waste is accumulated? (Prudent practice is to dispose of within 90 days). 2. Does each chemical hazardous waste container have a UC Davis Yes No NA

  20. Threadleaf Groundsel and Forage Response to Herbicides in the Davis Mountains.

    E-Print Network [OSTI]

    Jones, R.D.; Ueckert, D.N.; Nelson J.T.; Cox, J.R.

    1982-01-01T23:59:59.000Z

    groundsel. MATERIALS AND METHODS Description of the Study Area The study was conducted on the Billy and Tommy Weston Ranch , 6.4 kilometers (km) southeast of Fort Davis , Texas in Jeff Davis County. Elevation of the study area is 1,524 m and average... to the Houston Livestock Show and Rodeo for partial financial support of this research, to Billy and Tommy Weston for providing land for the research, to Dr. Charles E. Gates for assistance with statistical analyses , to Brad Lisenbee for assistance...

  1. Mass of Cu-57

    E-Print Network [OSTI]

    Gagliardi, Carl A.; Semon, D. R.; Tribble, Robert E.; Vanausdeln, L. A.

    1986-01-01T23:59:59.000Z

    the experimental and theoretical Coulomb displacement energies for similar cases in A =17 and 41 has been attributed~ to ground state correlations in the nuclear wave functions. It is in- teresting to examine the mass 57 mirror nuclei to investi- gate... indicated. Reference 9. 'Reference 7. Reference 6. 'This work. 34 MASS OF Cu 1665 the 3=57 Coulomb displacement energy, using radial wave functions obtained in a spherical Hartree-Fock cal- culation, assuming a closed Ni core, and including...

  2. Low Temperature 65 Cu NMR Spectroscopy of the Cu+ Site in Azurin...

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

    Temperature 65 Cu NMR Spectroscopy of the Cu+ Site in Azurin. Low Temperature 65 Cu NMR Spectroscopy of the Cu+ Site in Azurin. Abstract: Copper is a ubiquitous component of living...

  3. EA-1665: Davis-Kingman 69-kV Transmission Line Rebuild Project, Arizona

    Broader source: Energy.gov [DOE]

    Western plans to rebuild a 26.6-mile-long portion of the existing 27.3-mile-long DavisKingman Tap 69-kV Transmission Line within the existing ROW in order to improve the reliability of the transmission service.

  4. A Laser Range Scanner Designed for Minimum Calibration Complexity James Davis, Xing Chen

    E-Print Network [OSTI]

    Stanford University

    A Laser Range Scanner Designed for Minimum Calibration Complexity James Davis, Xing Chen Computer are a popular method for acquiring three-dimensional geometry due to their accuracy and robustness. Maximizing a two camera range scanner design, specifically chosen to minimize calibration complexity and cost

  5. UC Davis Student Housing, a division of Student Affairs WALL, CAMPBELL, and POTTER

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    UC Davis Student Housing, a division of Student Affairs WALL, CAMPBELL, and POTTER RESIDENCE HALLS 2010 · Architect: Mogavero-Notestine · Contractor: Brown Construction · 155,000 gross square feet · Total project cost: $35 million Housing 592 students, the new Wall, Campbell and Potter residence halls

  6. Davis-Bacon Labor Rates for Weatherization Work in Multifamily Buildings

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Weatherization Assistance Program Notice 10-04 deals with labor rates (wages) for weatherization work in large multifamily buildings that comply with the Davis-Bacon Act requirements of the 2009 Recovery Act.

  7. BOCA RATON DANIA BEACH DAVIE FORT LAUDERDALE HARBOR BRANCH JUPITER PORT ST. LUCIE Educational Plant Survey

    E-Print Network [OSTI]

    Fernandez, Eduardo

    BOCA RATON DANIA BEACH DAVIE FORT LAUDERDALE HARBOR BRANCH JUPITER PORT ST. LUCIE Educational Plant Survey 2011/2012 ­ 2016/2017 Approved by FAU BOT on June 15, 2011 #12;EDUCATIONAL PLANT SURVEY Florida ...................................................................................................................... ii Educational Plant Survey Team

  8. NON-RENEWABLE RESOURCE BOOMS AND THE POOR Graham A. Davis1

    E-Print Network [OSTI]

    1 NON-RENEWABLE RESOURCE BOOMS AND THE POOR Graham A. Davis1 Division of Economics and Business the level of non-renewable resource extraction and changes in the level of extraction affects the poor. Our that inhibit poverty-reducing manufacturing employment. Others claim that resource extraction promotes poverty

  9. UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence

    SciTech Connect (OSTI)

    Erickson, Paul

    2012-05-31T23:59:59.000Z

    This is the final report of the UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence which spanned from 2005-2012. The U.S. Department of Energy (DOE) established the Graduate Automotive Technology Education (GATE) Program, to provide a new generation of engineers and scientists with knowledge and skills to create advanced automotive technologies. The UC Davis Fuel Cell, Hydrogen, and Hybrid Vehicle (FCH2V) GATE Center of Excellence established in 2005 is focused on research, education, industrial collaboration and outreach within automotive technology. UC Davis has had two independent GATE centers with separate well-defined objectives and research programs from 1998. The Fuel Cell Center, administered by ITS-Davis, has focused on fuel cell technology. The Hybrid-Electric Vehicle Design Center (HEV Center), administered by the Department of Mechanical and Aeronautical Engineering, has focused on the development of plug-in hybrid technology using internal combustion engines. The merger of these two centers in 2005 has broadened the scope of research and lead to higher visibility of the activity. UC Davis??s existing GATE centers have become the campus??s research focal points on fuel cells and hybrid-electric vehicles, and the home for graduate students who are studying advanced automotive technologies. The centers have been highly successful in attracting, training, and placing top-notch students into fuel cell and hybrid programs in both industry and government.

  10. Presentation to Dr. Anne Davies, 1/26/99 OVERVIEW OF ADVANCED FUSION SCIENCE AND

    E-Print Network [OSTI]

    California at Los Angeles, University of

    Material Interactions #12;Presentation to Dr. Anne Davies, 1/26/99 5HVHDUFK $SSURDFK Sophisticated Program Research Projects APEX and ALPS IFE Chamber Development Non-Structural Material Interactions (Liquid Lithium Manifold) Fast Flowing Lithium Film Coats Inner Blanket Surface Lithium Droplets Collect

  11. A Reliable-Inference Framework for Recognition of Human Actions James W. Davis Ambrish Tyagi

    E-Print Network [OSTI]

    Davis, James W.

    A Reliable-Inference Framework for Recognition of Human Actions James W. Davis Ambrish Tyagi Dept. of Computer and Information Science Ohio State University Columbus, OH 43210 USA {jwdavis,tyagia}@cis.ohio are considered, this domain is a particularly good experimental testbed for the reliable-inference approach. We

  12. A Tale of Two Browsers Olga Baysal Ian Davis Michael W. Godfrey

    E-Print Network [OSTI]

    Godfrey, Michael W.

    A Tale of Two Browsers Olga Baysal Ian Davis Michael W. Godfrey David R. Cheriton School Descriptors D.2.8 [Software Engineering]: Metrics--product metrics General Terms Performance, reliability Keywords Software repositories, mining repositories, release history 1. INTRODUCTION In this paper, we

  13. The Future of Patient Care at Academic Health Centers Karen Davis

    E-Print Network [OSTI]

    von der Heydt, Rüdiger

    The Future of Patient Care at Academic Health Centers Karen Davis President The Commonwealth Fund, chairman, James J. Mongan, MD #12;4 The Future of Patient Care at Academic Health Centers · Strategy for Achieving a High Performance Health System · A 2020 Vision for American Health Care · How Do We Fare? ­ 2011

  14. Trade in Mineral Resources Graham A. Davis and Arturo L. Vsquez Cordano

    E-Print Network [OSTI]

    and natural gas involves special considerations of market power and energy security that warrant a separate1 Trade in Mineral Resources Graham A. Davis and Arturo L. Vsquez Cordano Division of Economics, Journal of Economics Surveys, doi: 10.1111/j.1467-6419.2011.00695.x, which has been published

  15. Dynamic cell behavior on shape memory polymer substrates Kevin A. Davis a,b

    E-Print Network [OSTI]

    Mather, Patrick T.

    Dynamic cell behavior on shape memory polymer substrates Kevin A. Davis a,b , Kelly A. Burke b: Cell culture Shape memory Thermally responsive material Surface topography a b s t r a c t Cell culture-responsive cell culture system that uses shape memory polymer (SMP) substrates that are programmed to change

  16. ER Membrane Protein Complex Required for Nuclear Fusion Davis T.W. Ng and Peter Walter

    E-Print Network [OSTI]

    Walter, Peter

    ER Membrane Protein Complex Required for Nuclear Fusion Davis T.W. Ng and Peter Walter Department is localized to the luminal (i.e., noncytoplasmic) face of the ER mem- brane, yet nuclear fusion must initiate of Sec63p, Sec71p, and Sec72p plays a central role in mediating nuclear mem- brane fusion and requires ER

  17. Traffic Shaping to Reduce Jitter in Controller Area Network (CAN) Robert I. Davis

    E-Print Network [OSTI]

    Navet, Nicolas

    Traffic Shaping to Reduce Jitter in Controller Area Network (CAN) Robert I. Davis Real-Time Systems in the response time of the message on the source network typically translates into queuing jitter on the destination network. This jitter inheritance accumulates across each gateway and can significantly impact

  18. Web Interfaces to MDSplus Data* W. Davis, P. Roney, T. Carroll, T. Gibney, D. Mastrovito

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Web Interfaces to MDSplus Data* W. Davis, P. Roney, T. Carroll, T. Gibney, D. Mastrovito Princeton be run in a Web browser. Web users don't need to know about X-windows, or even have accounts accessible from a Web browser. These utilities could be used at other sites which keep data in MDSplus. I

  19. MAT067 University of California, Davis Winter 2007 Advanced Linear Algebra. Syllabus

    E-Print Network [OSTI]

    Schilling, Anne

    MAT067 University of California, Davis Winter 2007 Advanced Linear Algebra. Syllabus L # Topics on Matrices Notes 13 Invertibility Axler pp 53­58 14 Eigenvalues and eigenvectors Axler pp 75­80 15 Existence Additional handouts with useful material are: Common Math Symbols, Notes on Sets and Functions, Matrices

  20. A methodology to evaluate the competitiveness of electric delivery trucks Brian A. Davis, Miguel A. Figliozzi

    E-Print Network [OSTI]

    Bertini, Robert L.

    , with electric cars gaining popularity and companies such as Frito Lay, Fed Ex, and Staples introducing electricA methodology to evaluate the competitiveness of electric delivery trucks Brian A. Davis, Miguel A Received in revised form 20 June 2012 Accepted 23 June 2012 Keywords: Urban deliveries Commercial electric

  1. 2-ADIC PARTIAL STIRLING FUNCTIONS AND THEIR ZEROS DONALD M. DAVIS

    E-Print Network [OSTI]

    Davis, Donald M.

    2-ADIC PARTIAL STIRLING FUNCTIONS AND THEIR ZEROS DONALD M. DAVIS Abstract. Let Pn(x) = 1 n! n 2i+1 Stirling function. We show that (-1)n+1 Pn is the only 2-adically continuous approximation to S(x, n), the Stirling number of the second kind. We present extensive information about the zeros of Pn, for which

  2. Sedimenting discs in a two-dimensional foam I. T. Davies, S. J. Cox

    E-Print Network [OSTI]

    Cox, Simon

    -dimensional foams can be thought of as a monolayer of bubbles squeezed between two glass plates. We choose to probeSedimenting discs in a two-dimensional foam I. T. Davies, S. J. Cox Institute of Mathematics in a dry two-dimensional, monodisperse foam is studied. This, a variation of the classical Stokes

  3. CU | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof EnergyInnovation inOpen Energy InformationSeries JumpCRESTCSP: PerspectivesCU

  4. University of California Davis West Village: The Largest Planned Net Zero Energy Community in the United States

    Office of Energy Efficiency and Renewable Energy (EERE)

    U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Community Renewable Energy (CommRE) success stories UC Davis net zero energy community; energy efficiency in buildings; PV and photovoltaics.

  5. Water-wise bee garden plants for the Sacramento region Christine Casey, UC Davis Hagen-Dazs Honey Bee Haven

    E-Print Network [OSTI]

    Ferrara, Katherine W.

    Water-wise bee garden plants for the Sacramento region Christine Casey, UC Davis Häagen-Dazs Honey Bee Haven This is a suggested list of water Purple Manzanita Arctostaphylos spp. Heather (Ericaceae) December to April; varies

  6. A dreamer and a painter : visualizing the unconscious in the work of Arthur B. Davies, 1890-1920

    E-Print Network [OSTI]

    Gephart, Emily Willard

    2014-01-01T23:59:59.000Z

    The paintings of U. S. artist Arthur B. Davies (1863-1928) spoke to his viewers in terms of the emergent discipline of psychology, creating visualizations of dreaming. This dissertation examines his work and its reception ...

  7. Watershed characteristics contributing to the 1983-84 debris flows in the Wasatch Range, Davis County, Utah

    E-Print Network [OSTI]

    Coleman, William Kevin

    1991-01-01T23:59:59.000Z

    WATERSHED CHARACTERISTICS CONTRIBUTING TO THE 3. 983-84 DEBRIS FLOWS IN THE WASATCH RANGE, DAVIS COUNTY ?UTAH A Thesis by WILLIAM KEVIN COLEMAN Submitted to Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1991 Major Subject: Geology WATERSHED CHARACTERISTICS CONTRIBUTING TO THE 1. 983 ? 84 DEBRIS FLOWS IN THE WASATCH RANGE, DAVIS COUNTY, UTAH A Thesis by WILLIAM KEVIN COLEMAN Approved...

  8. Electrodeposited NiCo/Cu Superlattices

    SciTech Connect (OSTI)

    Safak, M.; Alper, M. [Department of Physics, Faculty of Science and Literature, University of Uludag, Goeruekle, Bursa (Turkey)

    2007-04-23T23:59:59.000Z

    NiCo/Cu superlattices were electrodeposited on polycrystalline Cu substrates from a single electrolyte under potentiostatic control. The X-ray diffraction (XRD) patterns showed that NiCo/Cu superlattices have the same crystal structure and texture as in their substrates. The films exhibited giant magnetoresistance (GMR) or anisotropic magnetoresistance (AMR), depending on the Cu layer thicknesses.

  9. A probabilistic investigation of slope stability in the Wasatch Range, Davis County, Utah

    E-Print Network [OSTI]

    Eblen, James Storey

    1991-01-01T23:59:59.000Z

    . LISA (Level I Stability Analysis), a U. S. Forest Service probabilistic, slope stability model, and a deterministic model, dLISA, will be used in this study. The applicability of the two models will be established as follows: 1) Establish parametric... processes. Keaton (1988) developed a probabilistic model to evaluate hazards that are associated with alluvial fan sedimentation in Davis County, Utah. Keaton concluded that most of the canyons which yielded large volumes of sediment in 1983 and 1984 had...

  10. p-ADIC STIRLING NUMBERS OF THE SECOND KIND DONALD M. DAVIS

    E-Print Network [OSTI]

    Davis, Donald M.

    p-ADIC STIRLING NUMBERS OF THE SECOND KIND DONALD M. DAVIS Abstract. Let S(n, k) denote the Stirling numbers of the second kind. We prove that the p-adic limit of S(pe a+c, pe b+d) as e exists or rational number and Up(n) = n/pp(n) denotes the unit factor in n. Here we do the same for Stirling numbers

  11. DIVISIBILITY BY 2 AND 3 OF CERTAIN STIRLING NUMBERS DONALD M. DAVIS

    E-Print Network [OSTI]

    Davis, Donald M.

    DIVISIBILITY BY 2 AND 3 OF CERTAIN STIRLING NUMBERS DONALD M. DAVIS Abstract. The numbers ep(k, n) defined as min(p(S(k, j)j!) : j n) appear frequently in algebraic topology. Here S(k, j) is the Stirling. The result for divisibility of Stirling numbers is, when p = 2, that for such integers n, 2(S(2L + n - 1, n

  12. Anderson, Corby CSM Advanced Beneficiation Techniques

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta3 Table 3. SummaryAncient Proteins Anderson,

  13. Oxidation and diffusion of Cu in SrS: Cu grown by MBE for blue phosphors

    E-Print Network [OSTI]

    Wang, Zhong L.

    Oxidation and diffusion of Cu in SrS: Cu grown by MBE for blue phosphors Y.B. Xina,b,*, W. Tonga, ON M9W 5AS, Canada Abstract Systematic studies of MBE grown SrS:Cu thin film blue phosphors Thin film SrS:Cu is a potential candidate for blue electro- luminescent (EL) phosphors. Although recent

  14. Kim Davis Lebak Returns to New Mexico, excited about joining Field Office

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron beamJoin2015JustKateKent5 B O N N EKim Davis Lebak

  15. Net-Zero Campus at University of California, Davis | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagement ofConverDynNet-Zero Campus at University of California, Davis

  16. UC Davis Models: Geospatial Station Network Design Tool and Hydrogen Infrastructure Rollout Economic Analysis Model

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMayDepartmentTestFeedEnergyUC Davis Models Geospatial Station Network

  17. Well-studied Cu-BTC still serves surprises: evidence for facile...

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

    Well-studied Cu-BTC still serves surprises: evidence for facile Cu2+Cu+ interchange. Well-studied Cu-BTC still serves surprises: evidence for facile Cu2+Cu+ interchange....

  18. Filling holes in complex surfaces using volumetric diffusion James Davis Steven R. Marschner Matt Garr Marc Levoy

    E-Print Network [OSTI]

    Stanford University

    Filling holes in complex surfaces using volumetric diffusion James Davis Steven R. Marschner Matt of the head of Michelangelo's David. At right is a rendered 3D model of a section of his hair (corresponding), occlusions prevented access to the deepest crevices. The hole highlighted in this rendering has a complex

  19. Multimodal Interaction with an Autonomous Forklift Andrew Correa, Matthew R. Walter, Luke Fletcher, Jim Glass, Seth Teller, Randall Davis

    E-Print Network [OSTI]

    Lindeman, Robert W.

    , Jim Glass, Seth Teller, Randall Davis Computer Science and Artificial Intelligence Laboratory summoning the forklift and directing it to lift, transport, and place loads of palletized cargo. We describe an exploratory evaluation of the system designed to identify areas for detailed study. Our framework incorporates

  20. Machine Induction of Geospatial P A Whigham1, R I McKay2 & J R Davis1

    E-Print Network [OSTI]

    Fernandez, Thomas

    Machine Induction of Geospatial Knowledge P A Whigham1, R I McKay2 & J R Davis1 1CSIRO Division the implications of inductive techniques applied to geospatial data in a logical framework. It is argued trivial of cases. A heavily constrained geospatial domain, topographic representation, is described as one

  1. UC Davis Minors in Energy: Energy Science and Technology Minor (EEST) Offered by the Department of Biological and Agricultural Engineering

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    . Clean-tech and green-tech markets including energy are some of the fastest growing of new investment1 UC Davis Minors in Energy: Energy Science and Technology Minor (EEST) Offered by the Department There is an urgent need to develop and commercialize technologies for the sustainable conversion and use of energy

  2. TECHNICAL REPORT TR-05-01, UC DAVIS, JANUARY 2005. 1 An Analytical Approach to Energy-Aware Hybrid

    E-Print Network [OSTI]

    Islam, M. Saif

    TECHNICAL REPORT TR-05-01, UC DAVIS, JANUARY 2005. 1 An Analytical Approach to Energy-Aware Hybrid consumption characterization of large scale mobile ad hoc networks. An energy aware hybrid routing strategy 14853 qzhao@ece.ucdavis.edu ltong@ece.cornell.edu Abstract We pursue an analytical approach to energy

  3. CALIFORNIA LIGHTING TECHNOLOGY CENTER UNIVERSITY OF CALIFORNIA, DAVIS CLTC.UCDAVIS.EDU New requirements for lighting controls constitute one

    E-Print Network [OSTI]

    California at Davis, University of

    CALIFORNIA LIGHTING TECHNOLOGY CENTER UNIVERSITY OF CALIFORNIA, DAVIS CLTC.UCDAVIS.EDU New requirements for lighting controls constitute one of the biggest changes to Title 24 standards. The latest of controls commissioning. All lighting control systems with two or more components --in both residential

  4. Linear Algebra Research Project Rough Draft Nick Davis Camera Transformations in OpenGL ES 2.0

    E-Print Network [OSTI]

    Marzuola, Jeremy

    Linear Algebra Research Project Rough Draft Nick Davis Camera Transformations in OpenGL ES 2.0 Since the advent of the analog computer the power of visual display has played an integral part graphical output, including components designed solely for calculating graphics (Graphics Processing Units

  5. INTERNATIONAL ENGLISH and PROFESSIONAL PROGRAMS UNIVERSITY of CALIFORNIA, DAVIS 2012/2014 extension.ucdavis.edu/international

    E-Print Network [OSTI]

    California at Davis, University of

    . Mondavi Institute for Wine and Food Science UC Davis has a rich history of excellence in the wine and food science. A global innovator in university-based wine and food sciences research, education and outreach-departmental collaborations and interdisciplinary research, such as green energy and bio-medical technology. Our English

  6. Introducing the report series on XRF QA/QC Crocker Nuclear Laboratory (CNL), University of California, Davis

    E-Print Network [OSTI]

    Fischer, Emily V.

    Introducing the report series on XRF QA/QC Crocker Nuclear Laboratory (CNL), University of California, Davis For IMPROVE samples collected since June 1992, CNL has used XRF for the analysis in December 2001, CNL has also used XRF for the analysis of the lighter elements (Na-Fe). These analyses

  7. Renewable Energy-Aware Manycast Overlays Thilo Schondienst, Dylan A.P. Davis, Jeremy M. Plante, and Vinod M. Vokkarane

    E-Print Network [OSTI]

    Vokkarane, Vinod M.

    the environmental impact, ideally a large percentage of the network nodes along the transmission and the chosenRenewable Energy-Aware Manycast Overlays Thilo Schondienst, Dylan A.P. Davis, Jeremy M. Plante, and Vinod M. Vokkarane Vinod Vokkarane@uml.edu Department of Electrical & Computer Engineering, University

  8. Reconstruo de Imagens de Ressonncia Magntica de Fluxo com Imageamento Davi M. Lyra-Leite e Joao L. A. Carvalho

    E-Print Network [OSTI]

    Carvalho, Joo Luiz

    Reconstruo de Imagens de Ressonncia Magntica de Fluxo com Imageamento Paralelo Davi M. Lyra comple- tamente amostrados e subamostrados. Imagens de magnitude espacial e distribuies tempo fluxo. I. INTRODUO O trabalho com imagens mdicas vem sendo bem difundido desde o comeo do sculo XX

  9. An Information Theoretic Approach for the Discovery of Irregular and Repetitive Patterns in Genomic Willard Davis, Ananth Kalyanaraman

    E-Print Network [OSTI]

    Cook, Diane J.

    in Genomic Data Willard Davis, Ananth Kalyanaraman and Diane Cook School of Electrical Engineering}@eecs.wsu.edu The unprecedented rate at which genomic data is accumulated underscores the need to develop highly efficient of appropriate computational tools. Here, we propose a new approach for exploring and describing a genome without

  10. UC Davis-LLNL Scientific Advisory Committee Timothy Albertson, MD, PhD, Vice Chair, Internal Medicine

    E-Print Network [OSTI]

    Carmichael, Owen

    UC Davis-LLNL Scientific Advisory Committee Timothy Albertson, MD, PhD, Vice Chair, Internal Berglund, MD, PhD, CTSC Program Director Stuart Cohen, MD, Head of Infection Control, UCDMC Jeffrey Elias, PhD, Manager, Grant Coordination **Captain** Hernando Garzon, MD, Emergency Medicine, Kaiser Jeffrey

  11. Materials for Automobile Bodies, by Geoff Davies Published by Elsevier, U. K., 2003, pp. 1277, $ 75.00

    E-Print Network [OSTI]

    Cambridge, University of

    Materials for Automobile Bodies, by Geoff Davies Published by Elsevier, U. K., 2003, pp. 1 of the future would be made of plastic. On a similar line, Japanese and American automobile manufacturers spent and economics. The entire range of automobiles is covered, from cars for the mass­markets to concept cars

  12. The Effects of Hydrothermal Agingon a Commercial Cu SCR Catalyst

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

    * Model Cu-Zeolite SCR Catalyst Cu-SSZ-13 (SiAl 2 12), Cu-ZSM-5 (SiAl 2 30) Cu-beta (SiAl 2 38), Cu-Y(SiAl 2 5.2) * Hydrothermal Aging 10% H 2 O in air, 800 o C,...

  13. $J/?$ Production in $p+p$, $d+Au$, and $Cu+Cu$ Collisions at RHIC

    E-Print Network [OSTI]

    Vince Cianciolo; for the PHENIX Collaboration

    2006-01-05T23:59:59.000Z

    PHENIX results for $J/\\psi$ production in $p+p$, $d+Au$, and $Cu+Cu$ collisions at $\\sqrt{s_{NN}}=200$ GeV are presented.

  14. Origin of transverse magnetization in epitaxial Cu/Ni/Cu nanowire arrays

    E-Print Network [OSTI]

    Ciria, M.

    The patterning-induced changes in the magnetic anisotropy and hysteresis of epitaxial (100)-oriented Cu/Ni(9, 10, 15 nm)/Cu planar nanowires have been quantified. When the Ni films are patterned into lines, strain relaxation ...

  15. Science DMZ Implemented at CU Boulder

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

    @ CU Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ @ UF Science DMZ @...

  16. Optogalvanic isotope enrichment of Cu ions in Cu-Ne positive column discharges

    E-Print Network [OSTI]

    Kushner, Mark

    Optogalvanic isotope enrichment of Cu ions in Cu-Ne positive column discharges M. J. Kushner The isotopic enrichment of copper ions in a positive column Cu-Ne discharge using optogalvanic excitation the 63-amu isotope of copper is enriched relative to the neutral abundance. Enrichment as large as 10

  17. Spark Plasma Sintering of Nanocrystalline Cu and Cu-10 Wt Pct Pb Alloy

    E-Print Network [OSTI]

    Srivastava, Kumar Vaibhav

    Spark Plasma Sintering of Nanocrystalline Cu and Cu-10 Wt Pct Pb Alloy AMIT S. SHARMA, KRISHANU temperature of 623 K (350 C) using spark plasma sintering (SPS) in argon atmosphere at a pressure of 100 MPa to synthesize the bulk nanostructured Cu-10 wt pct Pb hypo-monotectic alloy by a novel technique, spark plasma

  18. Scanned pulsed laser annealing of Cu thin films

    E-Print Network [OSTI]

    Verma, Harsh Anand, 1980-

    2005-01-01T23:59:59.000Z

    As the microelectronics industry has moved to Cu as the conductor material, there has been much research into microstructure control in Cu thin films, primarily because grain sizes affect resistivity. Also with Cu-based ...

  19. Evaluation of antitranspirants on creeping bentgrass (Agrostis palustris Huds., cv. 'Penncros') and bermudagrass (Cynodon dactylon (L.) Pers. X Cynodon transvaalensis Burtt-Davy, cv. 'Tifway')

    E-Print Network [OSTI]

    Stahnke, Gwen Kristine

    1981-01-01T23:59:59.000Z

    EVALUATION OF ANTITRANSPIRANTS ON CREEPING BENTGRASS (Agrostis H I H d, 'P 'y AND HHHNIIDAGHAHH (~Cd d yl (L. ) Pere. X Cynodon transvaalensis Burtt-Davy, cv. 'Tifway') A Thesis by GVEN KRISTINE STAHNKE Submitted to the Graduate College.... ) Pere. X ~C nodon transvaalensis Burtt-Davy, cv. 'Tifway' A Thesis GWEN KRISTINE STAHNKE Approved as to style and content by: ;, 7;/) r' /(Chairman of Committee) I/ . a$&('" (Member) (Member) (:wj (. (Member) (Head of Department) August 1981...

  20. Presented at SRM Annual Conference, OKC, OK 2/5/2013 K.W. Tate, L.M. Roche, M.R. George, UC Davis 1

    E-Print Network [OSTI]

    Tate, Kenneth

    Presented at SRM Annual Conference, OKC, OK 2/5/2013 K.W. Tate, L.M. Roche, M.R. George, UC Davis 1, L.M. Roche, M.R. George, UC Davis 2 · Offstream attractants such as water tanks and supplement in runoff #12;Presented at SRM Annual Conference, OKC, OK 2/5/2013 K.W. Tate, L.M. Roche, M.R. George, UC

  1. Room-temperature Formation of Hollow Cu2O Nanoparticles

    SciTech Connect (OSTI)

    Hung, Ling-I; Tsung, Chia-Kuang; Huang, Wenyu; Yang, Peidong

    2010-01-18T23:59:59.000Z

    Monodisperse Cu and Cu2O nanoparticles (NPs) are synthesized using tetradecylphosphonic acid as a capping agent. Dispersing the NPs in chloroform and hexane at room temperature results in the formation of hollow Cu2O NPs and Cu@Cu2O core/shell NPs, respectively. The monodisperse Cu2O NPs are used to fabricate hybrid solar cells with efficiency of 0.14percent under AM 1.5 and 1 Sun illumination.

  2. Theoretical Electron Density Distributions for Fe- and Cu-Sulfide...

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

    Electron Density Distributions for Fe- and Cu-Sulfide Earth Materials: A Connection between Bond Length, Bond Theoretical Electron Density Distributions for Fe- and Cu-Sulfide...

  3. Adsorption of Cu21 Ions with Poly

    E-Print Network [OSTI]

    Adsorption of Cu21 Ions with Poly (N-isopropylacrylamide-co-methacrylic acid) Micro. It was shown that particle size played a very important role in the adsorption process. The nano-scale particles showed much improved Cu ion adsorption efficiency, compared with the micro hydro- gels. The amount

  4. Cu

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power Administration would likeConstitution4 Department of WeeklyCrystalnamed

  5. The optimization of the production of ??Cu

    E-Print Network [OSTI]

    Gauny, Ronnie Dean

    1971-01-01T23:59:59.000Z

    to the short half- life of Cu and Zn, at the time of chemical separation the only contaminants expected were Ga from Zn, 1. 2 0 0 2( 4 M T W Th F S Su M T W Th F S Days of the Week Fig. 1. Nuclear Reactor Time Optimization. 14 Zn from Cu and Ni... in the production of s~Cu. To be selected a reaction had to have a stable target, an obtain- able g-value, a carrier free reaction, and a low level of activity due to contaminating products. Based on the above criteria, 6 Zn(n, p) 'Cu, 'Zn(n, d)' Cu, and Ni(o, p...

  6. EA-1982: Parker-Davis Transmission System Routine Operation and Maintenance Project and Proposed Integrated Vegetation Management Plan

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) is preparing an EA to assess potential environmental impacts of the proposed continuation of operations and maintenance activities and implementation of a vegetation management program on Westerns Parker-Davis Transmission System. These actions would occur on existing transmission line and access road rights-of-way, and at substations and maintenance facilities associated with the transmission system.

  7. Fundamental Studies of Methanol Synthesis from CO2 Hydrogenation on Cu(111), Cu Clusters, and Cu/ZnO(000?)

    SciTech Connect (OSTI)

    Liu, P.; Yang, Y.; Evans, J.; Rodriguez, J.A.; White, M.G.

    2010-06-21T23:59:59.000Z

    A combination of experimental and theoretical methods were employed to investigate the synthesis of methanolvia CO{sub 2}hydrogenation (CO{sub 2} + 3H{sub 2} {yields} CH{sub 3}OH + H{sub 2}O) on Cu(111) and Cunanoparticle surfaces. High pressure reactivity studies show that Cunanoparticles supported on a ZnO(000{bar 1}) single crystal exhibit a higher catalytic activity than the Cu(111) planar surface. Complementary density functional theory (DFT) calculations of methanol synthesis were also performed for a Cu(111) surface and unsupported Cu{sub 29} nanoparticles, and the results support a higher activity for Cu nanoparticles. The DFT calculations show that methanol synthesis on Cu surfaces proceeds through a formate intermediate and the overall reaction rate is limited by both formate and dioxomethylene hydrogenation. Moreover, the superior activity of the nanoparticle is associated with its fluxionality and the presence of low-coordinated Cu sites, which stabilize the key intermediates, e.g. formate and dioxomethylene, and lower the barrier for the rate-limiting hydrogenation process. The reverse water-gas-shift (RWGS) reaction (CO{sub 2} + H{sub 2} {yields} CO + H{sub 2}O) was experimentally observed to compete with methanol synthesis and was also considered in our DFT calculations. In agreement with experiment, the rate of the RWGS reaction on Cu nanoparticles is estimated to be 2 orders of magnitude faster than methanol synthesis at T = 573 K. The experiments and calculations also indicate that CO produced by the fast RWGS reaction does not undergo subsequent hydrogenation to methanol, but instead simply accumulates as a product. Methanol production from CO hydrogenation via the RWGS pathway is hindered by the first hydrogenation of CO to formyl, which is not stable and prefers to dissociate into CO and H atoms on Cu. Our calculated results suggest that the methanol yield over Cu-based catalysts could be improved by adding dopants or promoters which are able to stabilize formyl species or facilitate the hydrogenation of formate and dioxomethylene. the RWGS pathway is hindered by the first hydrogenation of CO to formyl, which is not stable and prefers to dissociate into CO and H atoms on Cu. Our calculated results suggest that the methanol yield over Cu-based catalysts could be improved by adding dopants or promoters which are able to stabilize formyl species or facilitate the hydrogenation of formate and dioxomethylene.

  8. Accident investigation of the electrical shock incident at the PG and E PVUSA site Davis, California

    SciTech Connect (OSTI)

    Jacobson, L.; Moskowitz, P.D.; Garrett, J.O.; Tyler, R.

    1992-02-01T23:59:59.000Z

    This report summarizes the findings of the Accident Investigation Team (Team) assembled in response to a request from Pacific Gas and Electric Company (PG and E) to the US Department of Energy (DOE) to understand the events surrounding the electric shock of a worker at the PVUSA site in Davis, California and to provide recommendations to prevent such events from recurring. The report gives complete details on the sequence of events surrounding the accident and identifies 27 facts related to accident itself. Four technical deficiencies in the electrical systems which require further investigation were identified. The Team believes that the root cause of this accident was related to the absence of a proactive organizational entity responsible for overall health and safety on the site. Two contributing factors were identified. First, the prototype nature and associated operational difficulties of the electrical inverter resulted in large maintenance demands. Second, several of the injured employee`s co-workers noted that he occasionally failed to use appropriate personal protective equipment, but they never reported this practice to management. The direct cause of this accident was the failure of the injured employee to wear appropriate personal protective equipment (i.e., rubber gloves). Based on the review of the facts established in this investigation, five recommendations are presented to the funding agencies to reduce the possibility of future accidents at the PVUSA site.

  9. Accelerating Fatigue Testing for Cu Ribbon Interconnects (Presentation)

    SciTech Connect (OSTI)

    Bosco, N.; Silverman, T.; Wohlgemuth , J.; Kurtz, S.; Inoue, M.; Sakurai, K.; Shioda, T.; Zenkoh, H.; Miyashita, M.; Tadanori, T.; Suzuki, S.

    2013-05-01T23:59:59.000Z

    This presentation describes fatigue experiments and discusses dynamic mechanical loading for Cu ribbon interconnects.

  10. beta-decay study of Cu-77

    E-Print Network [OSTI]

    N. Patronis; H. De Witte; M. Gorska; M. Huyse; K. Kruglov; D. Pauwels; K. Van de Vel; P. Van Duppen; J. Van Roosbroeck; J. -C. Thomas; S. Franchoo; J. Cederkall; V. N. Fedoseyev; H. Fynbo; U. Georg; O. Jonsson; U. Kster; T. Materna; L. Mathieu; O. Serot; L. Weissman; W. F. Mueller; V. I. Mishin; D. Fedorov

    2009-09-01T23:59:59.000Z

    A beta-decay study of Cu-77 has been performed at the ISOLDE mass separator with the aim to deduce its beta-decay properties and to obtain spectroscopic information on Zn-77. Neutron-rich copper isotopes were produced by means of proton- or neutron-induced fission reactions on U-238. After the production, Cu-77 was selectively laser ionized, mass separated and sent to different detection systems where beta-gamma and beta-n coincidence data were collected. We report on the deduced half-live, decay scheme, and possible spin assignment of 77Cu.

  11. Cu-Cu direct bonding achieved by surface method at room temperature

    SciTech Connect (OSTI)

    Utsumi, Jun [Advanced Technology Research Center, Mitsubishi Heavy Industries, Ltd., 1-8-1 Sachiura, Kanazawa-ku, Yokohama 236-8515 (Japan); Ichiyanagi, Yuko, E-mail: yuko@ynu.ac.jp [Department of Physics, Graduate School of Engineering, Yokohama National University, Tokiwadai, Hodogaya, Yokohama 240-8501 (Japan)

    2014-02-20T23:59:59.000Z

    The metal bonding is a key technology in the processes for the microelectromechanical systems (MEMS) devices and the semiconductor devices to improve functionality and higher density integration. Strong adhesion between surfaces at the atomic level is crucial; however, it is difficult to achieve close bonding in such a system. Cu films were deposited on Si substrates by vacuum deposition, and then, two Cu films were bonded directly by means of surface activated bonding (SAB) at room temperature. The two Cu films, with the surface roughness Ra about 1.3nm, were bonded by using SAB at room temperature, however, the bonding strength was very weak in this method. In order to improve the bonding strength between the Cu films, samples were annealed at low temperatures, between 323 and 473 K, in air. As the result, the Cu-Cu bonding strength was 10 times higher than that of the original samples without annealing.

  12. Viscous hydrodynamics description of $?$ meson production in Au+Au and Cu+Cu collisions

    E-Print Network [OSTI]

    A. K. Chaudhuri

    2009-01-27T23:59:59.000Z

    In the Israel-Stewart's theory of 2nd order dissipative hydrodynamics, we have simulated $\\phi$ production in Au+Au and Cu+Cu collisions at $\\sqrt{s}_{NN}$=200 GeV. Evolution of QGP fluid with viscosity over the entropy ratio $\\eta/s$=0.25, thermalised at $\\tau_i$=0.2 fm, with initial energy density $\\epsilon_i$=5.1 $GeV/fm^3$ explains the experimental data on $\\phi$ multiplicity, integrated $v_2$, mean $p_T$, $p_T$ spectra and elliptic flow in central and mid-central Au+Au collisions. $\\eta/s$=0.25 is also consistent with centrality dependence of $\\phi$ $p_T$ spectra in Cu+Cu collisions. The central energy density in Cu+Cu collisions is $\\epsilon_i$=3.48 $GeV/fm^3$.

  13. "Leveraging University Expertise to Inform Better Policy" The UC Davis Policy Institute for Energy, Environment and the Economy is part of a bold new campus-wide initiative to

    E-Print Network [OSTI]

    California at Davis, University of

    , Environment and the Economy is part of a bold new campus-wide initiative to dramatically increase the value in California forum and reception. The UC Davis Policy Institute for Energy, Environment and the Economy, the UC Davis Institute of Transportation Studies, and BMW Group present a policy forum and reception to discuss

  14. Epitaxial Growth and Microstructure of Cu2O Nanoparticle/thin...

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

    The grown layer was dominated by Cu2O phase, possessing an epitaxial orientation with the substrate such that: Cu2O001STO001 and Cu2O(100)STO(100). Cu2O film...

  15. Femtosecond dynamics of Cu,,CD3OD... Jack Barbera

    E-Print Network [OSTI]

    Lineberger, W. Carl

    Femtosecond dynamics of Cu,,CD3OD... Jack Barbera JILA, University of Colorado, Boulder, Colorado online 27 February 2007 We report the femtosecond nuclear dynamics of Cu CD3OD van der Waals clusters, investigated using photodetachment-photoionization spectroscopy. Photodetachment of an electron from Cu- CD3OD

  16. SYN T H E S I S THE MAGAZINE OF UC DAVIS CANCER CENTER VOL 14 NO 2 FALL/WINTER 2011

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    to cancer diagnosis, treatment and survivorship: adolescents and young adults (AYA). Although cancer Connections 8 National research team tries new approach to speed treatments First steps 10 Cancer CenterSYN T H E S I S THE MAGAZINE OF UC DAVIS CANCER CENTER VOL 14 NO 2 FALL/WINTER 2011 Younger

  17. READINGS FOR EVERYONE Davies, P.J., Bubela, B. and Ferguson, J., 1978, The formation of ooids: Sedimentology, v. 25, p. 703-730.

    E-Print Network [OSTI]

    Kah, Linda

    OOIDS READINGS FOR EVERYONE Davies, P.J., Bubela, B. and Ferguson, J., 1978, The formation of ooids: Sedimentology, v. 25, p. 703-730. Given, R.K., and Wilkinson, B.H., 1985, Kinetic control of morphology, composition and mineralogy of abiotic sedimentary carbonates: Journal of Sedimentary Petrology v. 55, p. 109

  18. Sugar-Induced Molten-Globule Model Paula R. Davis-Searles, Artemiza S. Morar, Aleister J. Saunders, Dorothy A. Erie, and Gary J. Pielak*

    E-Print Network [OSTI]

    Erie, Dorothy A.

    Sugar-Induced Molten-Globule Model Paula R. Davis-Searles, Artemiza S. Morar, Aleister J. Saunders. The addition of salt partially overcomes this repulsion for some proteins, yielding a collapsed conformation called the A-state. A-states have characteristics expected for the molten globule, a notional kinetic

  19. Jade Sky Technologies Partners with CLTC on LED Replacement Lamp Upgrade Project UC Davis' California Lighting Technology Center will utilize Jade Sky Technologies' driver ICs to help spur

    E-Print Network [OSTI]

    California at Davis, University of

    Jade Sky Technologies Partners with CLTC on LED Replacement Lamp Upgrade Project UC Davis and power factor. "JST shares our goal of making the transition to LED lamps a satisfying experience of cost-effective, easy-to-use LED lighting solutions Milpitas, Calif. October 15, 2013 Jade Sky

  20. The Center for Water-Energy Efficiency is a not-for-profit research and development unit at the University of California, Davis, leading innovations in

    E-Print Network [OSTI]

    California at Davis, University of

    The Center for Water-Energy Efficiency is a not-for-profit research and development unit at the University of California, Davis, leading innovations in water and energy efficient technologies and policies between water and energy and to use and allocate both more efficiently. Collaborating with partners

  1. The Science of Solar As part of its public outreach activities, the UC Davis-UC Santa Cruz Solar Collaborative wishes to provide up-to-date,

    E-Print Network [OSTI]

    The Science of Solar As part of its public outreach activities, the UC Davis-UC Santa Cruz Solar Collaborative wishes to provide up-to-date, detailed information on the science behind photovoltaics. The Solar to their respective section, thereby helping to create a hub for reliable information on solar technology. Solar

  2. Electrolyte Composition for Cu Electrochemical Mechanical Planarization

    E-Print Network [OSTI]

    Suni, Ian Ivar

    abrasives are included within the ECMP electrolyte. In situ electrochemical impedance spectroscopy results measurements of the Cu removal rate, with and without surface abrasion. These results predict a 500 m indicate that the interfacial impedance is increased by the presence of silica, suggesting that silica

  3. Di-jet correlation in Au + Au and Cu + Cu collisions from PHENIX

    E-Print Network [OSTI]

    Jiangyong Jia

    2006-01-18T23:59:59.000Z

    PHENIX has measured the two particle azimuth correlation in Au + Au at $\\sqrt{s}$ = 200 GeV. Jet shape and yield at the away side are found to be strongly modified at intermediate and low $p_T$. The modifications vary dramatically with $p_T$ and centrality. At high $p_T$, away side jet peak reappears but the yield is suppressed. Similar jet strength is found for Au + Au and Cu + Cu collisions with similar number of participant nucleons.

  4. Bi-Se doped with Cu, p-type semiconductor

    DOE Patents [OSTI]

    Bhattacharya, Raghu Nath; Phok, Sovannary; Parilla, Philip Anthony

    2013-08-20T23:59:59.000Z

    A Bi--Se doped with Cu, p-type semiconductor, preferably used as an absorber material in a photovoltaic device. Preferably the semiconductor has at least 20 molar percent Cu. In a preferred embodiment, the semiconductor comprises at least 28 molar percent of Cu. In one embodiment, the semiconductor comprises a molar percentage of Cu and Bi whereby the molar percentage of Cu divided by the molar percentage of Bi is greater than 1.2. In a preferred embodiment, the semiconductor is manufactured as a thin film having a thickness less than 600 nm.

  5. Microstructure of electrodeposited Cu-Ni binary alloy films

    SciTech Connect (OSTI)

    Mizushima, Io; Chikazawa, Masatoshi; Watanabe, Tohru [Tokyo Metropolitan Univ. (Japan). Dept. of Industrial Chemistry

    1996-06-01T23:59:59.000Z

    The codeposition of Cu and Ni in the electrodeposition method without a complexing agent is difficult, since the standard electrode potentials of Cu and Ni differ by approximately 600 mV. In this study, the electrodeposited Cu-Ni alloy films with various compositions were obtained using glycine as the complexing agent. Consequently, composition of the deposited Cu-Ni alloy films can be controlled by bath composition and pH, and the crystallographic structure of all the deposited Cu-Ni alloy films consists of a single solid solution and is not influenced by pH.

  6. CuO cauliflowers for supercapacitor application: Novel potentiodynamic deposition

    SciTech Connect (OSTI)

    Dubal, Deepak P., E-mail: deepak.dubal@chemie.tu-chemnitz.de [Technische Universitt Chemnitz, Institut fr Chemie, AG Elektrochemie, D-09107 Chemnitz (Germany); Gund, Girish S.; Lokhande, Chandrakant D. [Thin Film Physics Laboratory, Department of Physics, Shivaji University, Kolhapur, 416004 (M.S) (India)] [Thin Film Physics Laboratory, Department of Physics, Shivaji University, Kolhapur, 416004 (M.S) (India); Holze, Rudolf, E-mail: rudolf.holze@chemie.tu-chemnitz.de [Technische Universitt Chemnitz, Institut fr Chemie, AG Elektrochemie, D-09107 Chemnitz (Germany)] [Technische Universitt Chemnitz, Institut fr Chemie, AG Elektrochemie, D-09107 Chemnitz (Germany)

    2013-02-15T23:59:59.000Z

    Graphical abstract: Schematic experimental setup used for the potentiodynamic mode of electrodeposition for the synthesis of CuO cauliflower onto stainless steel substrate. Highlights: ? Synthesis of CuO using potentiodynamic mode of electrodeposition. ? Uniformly spread cauliflower-like nanostructure. ? CuO cauliflowers provide high specific capacitance with good stability. ? CuO cauliflowers show high power and energy density values. -- Abstract: In present investigation, synthesis and characterization of novel cauliflower-like copper oxide (CuO) and its electrochemical properties have been performed. The utilized CuO cauliflowers were prepared by potentiodyanamic mode from an aqueous alkaline bath. X-ray diffraction pattern confirm the formation of monoclinic CuO cauliflowers. Scanning electron micrograph analysis reveals that CuO cauliflowers are uniformly spread all over the substrate surface with the surface area of 49 m{sup 2} g{sup ?1} with bimodal pore size distribution. Electrochemical analysis shows that CuO cauliflower exhibits high specific capacitance of 179 Fg{sup ?1} in 1 M Na{sub 2}SO{sub 4} electrolyte with 81% capacity retention after 2000 cycles. The Ragone plot discovers better power and energy densities of cauliflowers-like CuO sample. Present investigation illustrates that the potentiodynamic approach for the direct growth of cauliflower-like CuO is simple and cost-effective and can be applied for synthesis of other metal oxides, polymers etc.

  7. A one-year NSF funded postdoctoral position is available immediately to work on the evolution of plant reproductive strategies in stochastic environments at the University of California, Davis.

    E-Print Network [OSTI]

    Ishida, Yuko

    A one-year NSF funded postdoctoral position is available immediately to work on the evolution of plant reproductive strategies in stochastic environments at the University of California, Davis. We

  8. Method of producing .sup.67 Cu

    DOE Patents [OSTI]

    O'Brien, Jr., Harold A. (Los Alamos, NM); Barnes, John W. (Los Alamos, NM); Taylor, Wayne A. (Los Alamos, NM); Thomas, Kenneth E. (Los Alamos, NM); Bentley, Glenn E. (Los Alamos, NM)

    1984-01-01T23:59:59.000Z

    A method of producing carrier-free .sup.67 Cu by proton spallation combined with subsequent chemical separation and purification is disclosed. A target consisting essentially of pressed zinc oxide is irradiated with a high energy, high current proton beam to produce a variety of spallogenic nuclides, including .sup.67 Cu and other copper isotopes. The irradiated target is dissolved in a concentrated acid solution to which a palladium salt is added. In accordance with the preferred method, the spallogenic copper is twice coprecipitated with palladium, once with metallic zinc as the precipitating agent and once with hydrogen sulfide as the precipitating agent. The palladium/copper precipitate is then dissolved in an acid solution and the copper is separated from the palladium by liquid chromatography on an anion exchange resin.

  9. Synthesis of Cu Nanowires with Polycarbonate Template

    SciTech Connect (OSTI)

    Naderi, N.; Hashim, M. R. [School of Physics, Universiti Sains Malaysia, 11800 USM, Penang (Malaysia)

    2011-03-30T23:59:59.000Z

    Copper nanowires were fabricated into arrays of pores on ion-track etched polycarbonate membrane, using electrodeposition technique. We coated Au thin film layer on one side of membrane in order to have electrical contact. X-ray diffraction analysis shows that the Au layer has a strong (111) texture. The pores which have cylindrical shape with 6 micron length and 30 nm diameter were filled by copper atoms, fabricating Cu nanowires. Energy Disperse Spectrometry (EDS) indicated the picks of copper which filled the pores of substrate. The morphology and structure of Cu nanowires were characterized by SEM, TEM and XRD, respectively. The results show that although all the nanowires do not have uniform diameter, but all of them are continuous along the length.

  10. A new Cucysteamine complex: structure and optical properties

    SciTech Connect (OSTI)

    Ma, Lun; Chen, Wei; Schatte, Gabriele; Wang, Wei; Joly, Alan G.; Huang, Yining; Sammynaiken, Ramaswami; Hossu, Marius

    2014-06-07T23:59:59.000Z

    Here we report the structure and optical properties of a new Cucysteamine complex (CuCy) with a formula of Cu3Cl(SR)2 (R CH2CH2NH2). This CuCy has a different structure from a previous CuCy complex, in which both thio and amine groups from cysteamine bond with copper ions. Single-crystal X-ray diffraction and solid-state nuclear magnetic resonance results show that the oxidation state of copper in Cu3Cl(SR)2 is +1 rather than +2. Further, Cu3Cl(SR)2 has been observed to show intense photoluminescence and X-ray excited luminescence. More interesting is that Cu3Cl(SR)2 particles can produce singlet oxygen under irradiation by light or X-ray. This indicates that Cu3Cl(SR)2 is a new photosensitizer that can be used for deep cancer treatment as X-ray can penetrate soft tissues. All these findings mean that Cu3Cl(SR)2 is a new material with potential applications for lighting, radiation detection and cancer treatment.

  11. Charged Particle Multiplicities in Ultra-relativistic Au+Au and Cu+Cu Collisions

    E-Print Network [OSTI]

    B. B. Back

    2006-04-26T23:59:59.000Z

    The PHOBOS collaboration has carried out a systematic study of charged particle multiplicities in Cu+Cu and Au+Au collisions at the Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Laboratory. A unique feature of the PHOBOS detector is its ability to measure charged particles over a very wide angular range from 0.5 to 179.5 deg. corresponding to |eta|<5.4. The general features of the charged particle multiplicity distributions as a function of pseudo-rapidity, collision energy and centrality, as well as system size, are discussed.

  12. Relationship between morphologies and orientations of Cu{sub 6}Sn{sub 5} grains in Sn3.0Ag0.5Cu solder joints on different Cu pads

    SciTech Connect (OSTI)

    Tian, Yanhong, E-mail: tianyh@hit.edu.cn; Zhang, Rui; Hang, Chunjin; Niu, Lina; Wang, Chunqing

    2014-02-15T23:59:59.000Z

    The morphologies and orientations of Cu{sub 6}Sn{sub 5} intermetallic compounds in the Sn3.0Ag0.5Cu solder joints both on polycrystalline and single crystal Cu pads under different peak reflow temperatures and times above liquids were investigated. The relationship between Cu{sub 6}Sn{sub 5} grain orientations and morphologies was clarified. At the interface of Sn3.0Ag0.5Cu/polycrystalline Cu pad, scalloped Cu{sub 6}Sn{sub 5} intermetallic compounds formed at 250 C and roof shape Cu{sub 6}Sn{sub 5} formed at 300 C. Both scalloped Cu{sub 6}Sn{sub 5} and roof shape Cu{sub 6}Sn{sub 5} had a preferred orientation of (0001) plane being parallel to polycrystalline Cu pad surface. Besides, the percentage of large angle grain boundaries increased as the peak reflow temperature rose. At the interface of Sn3.0Ag0.5Cu/(111) single crystal Cu pad, the Cu{sub 6}Sn{sub 5} intermetallic compounds were mainly scallop-type at 250 C and were prism type at 300 C. The prismatic Cu{sub 6}Sn{sub 5} grains grew along the three preferred directions with the inter-angles of 60 on (111) single crystal Cu pad while along two perpendicular directions on (100) single crystal Cu pad. The orientation relationship between Cu{sub 6}Sn{sub 5} grains and the single crystal Cu pads was investigated by electron backscatter diffraction technology. In addition, two types of hollowed Cu{sub 6}Sn{sub 5} intermetallic compounds were found inside the joints of polycrystalline Cu pads. The long hexagonal Cu{sub 6}Sn{sub 5} strips were observed in the joints reflowing at 250 C while the hollowed Cu{sub 6}Sn{sub 5} strips with the ? shape cross-sections appeared at 300 C, which was attributed to the different grain growth rates of different Cu{sub 6}Sn{sub 5} crystal faces. - Highlights: The orientation of interfacial Cu{sub 6}Sn{sub 5} grains was obtained by EBSD technology. Two types of hollowed Cu{sub 6}Sn{sub 5} strips were found at different temperatures. The formation mechanism of hollowed Cu{sub 6}Sn{sub 5} was elaborated based on Bravais law. The relationship between Cu{sub 6}Sn{sub 5} grain orientations and morphologies was clarified.

  13. Intermetallic compound formation at Cu-Al wire bond interface

    SciTech Connect (OSTI)

    Bae, In-Tae; Young Jung, Dae [Small Scale Systems Integration and Packaging Center, State University of New York at Binghamton, Binghamton, New York 13902 (United States); Chen, William T.; Du Yong [Advanced Semiconductor Engineering Inc., 1255 E Arques Ave, Sunnyvale, California 94085 (United States)

    2012-12-15T23:59:59.000Z

    Intermetallic compound (IMC) formation and evolution at Cu-Al wire bond interface were studied using focused ion beam /scanning electron microscopy, transmission electron microscopy (TEM)/energy dispersive x-ray spectroscopy (EDS), nano beam electron diffraction (NBED) and structure factor (SF) calculation. It was found that discrete IMC patches were formed at the Cu/Al interface in as-packaged state and they grew toward Al pad after high temperature storage (HTS) environment at 150 Degree-Sign C. TEM/EDS and NBED results combined with SF calculation revealed the evidence of metastable {theta} Prime -CuAl{sub 2} IMC phase (tetragonal, space group: I4m2, a = 0.404 nm, c= 0.580 nm) formed at Cu/Al interfaces in both of the as-packaged and the post-HTS samples. Two feasible mechanisms for the formation of the metastable {theta} Prime -CuAl{sub 2} phase are discussed based on (1) non-equilibrium cooling of wire bond that is attributed to highly short bonding process time and (2) the epitaxial relationships between Cu and {theta} Prime -CuAl{sub 2}, which can minimize lattice mismatch for {theta} Prime -CuAl{sub 2} to grow on Cu.

  14. CPSM/CSM Bridge Review May 17-18, 2012

    E-Print Network [OSTI]

    Lin, Xiaodong

    and your organization a leader in Supply Chain and Procurement Management. Professionals who earn, have the skills to make better value-based decisions and the knowledge to take advantage of the new

  15. National Engineers Week with CSM and Lockheed Martin

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar Energy Harvesting LosNationalAnnualNational Engineers

  16. Template-directed FeCo nanoshells on AuCu. | EMSL

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

    on AuCu. Abstract: A synthetic route is reported to achieve a precise control of FeCo shell growth on AuCu cores, leading to AuCuFeCo core-shell nanoparticles, which could...

  17. CU-Boulder Faculty Awards Campus, School/College, and System Level

    E-Print Network [OSTI]

    Corporation Faculty Community Service Award CU System, Office of Academic Affairs https://www.cu.edu/content/chase-corporation/teaching.html February All Faculty Eaton Faculty Awards for Outstanding Achievement CU-Boulder, Center for Humanities

  18. Unexpected crystal and magnetic structures in MnCu4In and MnCu4Sn

    SciTech Connect (OSTI)

    Provino, A.; Paudyal, D.; Fornasini, ML; Dhiman, I.; Dhar, SK.; Das, A.; Mudryk, Y.; Manfrinetti, P.; Pecharsky, VK

    2013-01-29T23:59:59.000Z

    We discovered a new compound MnCu4In with its own hexagonal structure type (hP12-P63mc, ternary ordered derivative of the hexagonal MgZn2-type) that becomes ferromagnetic at TC = 540 K. This transition temperature is higher than that found in the MnCu2In and MnCu2Sn alloys. In contrast, the homologous compound MnCu4Sn, which crystallizes in the cubic MgCu4Sn-type, orders antiferromagnetically with TN = 110 K. The neutron diffraction studies show ferromagnetic spin orientation in the {1 0 1} plane in MnCu4In with a magnetic moment of 4.5 ?B/Mn at 22 K, and a corresponding value of 4.7 ?B/Mn in the antiferromagnetic MnCu4Sn with propagation vector View the MathML source. The first-principles electronic structure calculations show that the unexpected difference in both magnetic and crystal structures of MnCu4In and MnCu4Sn is due to the difference in the Mn-3d bands and exchange interactions relating to different crystal anisotropy, coordination numbers, and interatomic distances.

  19. New Resolved Resonance Region Evaluation for 63Cu and 65Cu for Nuclear Criticality Safety Program

    SciTech Connect (OSTI)

    Sobes, Vladimir [ORNL] [ORNL; Leal, Luiz C [ORNL] [ORNL; Guber, Klaus H [ORNL] [ORNL; Forget, Benoit [Massachusetts Institute of Technology (MIT)] [Massachusetts Institute of Technology (MIT); Kopecky, S. [EC-JRC-IRMM, Geel, Belgium] [EC-JRC-IRMM, Geel, Belgium; Schillebeeckx, P. [EC-JRC-IRMM, Geel, Belgium] [EC-JRC-IRMM, Geel, Belgium; Siegler, P. [EC-JRC-IRMM, Geel, Belgium] [EC-JRC-IRMM, Geel, Belgium

    2014-01-01T23:59:59.000Z

    A new resolved resonance region evaluation of 63Cu and 65Cu was done in the energy region from 10-5 eV to 99.5 keV. The R-Matrix SAMMY method using the Reich-Moore approximation was used to create a new set of consistent resonance parameters. The new evaluation was based on three experimental transmission data sets; two measured at ORELA and one from MITR, and two radiative capture experimental data sets from GELINA. A total of 141 new resonances were identied for 63Cu and 117 for 65Cu. The corresponding set of external resonances for each isotope was based on the identied resonances above 99.5 keV from the ORELA transmission data. The negative external levels (bound levels) were determined to match the dierential thermal cross section measured at the MITR. Double dierential elastic scattering cross sections were calculated from the new set of resonance parameters. Benchmarking calculations were carried out on a set of ICSBEP benchmarks. This work is in support of the DOE Nuclear Criticality Safety Program.

  20. Science DMZ Implemented at CU Boulder

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiationImplementingnpitcheResearch BriefsTenney, Office of ScienceActivities in202-000CU

  1. Mitigation of the Impact of Pt Contamination on Cu-Zeolite SCR...

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

    the Impact of Pt Contamination on Cu-Zeolite SCR Catalyst Performance Mitigation of the Impact of Pt Contamination on Cu-Zeolite SCR Catalyst Performance Investigates operating...

  2. In situ visualization of metallurgical reactions in nanoscale Cu/Sn diffusion couples

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

    Yin, Qiyue; Stach, Eric A.; Gao, Fan; Zhou, Guangwen; Gu, Zhiyong

    2015-01-01T23:59:59.000Z

    The CuSn metallurgical soldering reaction in two-segmented CuSn nanowires is visualized by in-situ transmission electron microscopy. By varying the relative lengths of Cu and Sn segments, we show that the metallurgical reaction starts at ~ 200 with the formation of a CuSn solid solution for the Sn/Cu length ratio smaller than 1:5 while the formation of CuSn intermetallic compounds (IMCs) for larger Sn/Cu length ratios. Upon heating the nanowires up to ~ 500 C, two phase transformation pathways occur, ?-Cu?Sn? ? ?-Cu?Sn ? ?-Cu??Sn?? for nanowires with a long Cu segment and ?-Cu?Sn? ? ?-Cu?Sn ? ?-Cu?Sn with amoreshort Cu segment. The dynamic in situ TEM visualization of the evolution of Kirkendall voids demonstrates that Cu diffuses faster both in Sn and IMCs than that of Sn in Cu? and IMCs, which is the underlying cause of the dependence of the IMC formation and associated phase evolution on the relative lengths of the Cu and Sn segments.less

  3. MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ELECTROPLATED Cu THIN FILMS

    E-Print Network [OSTI]

    Volinsky, Alex A.

    MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ELECTROPLATED Cu THIN FILMS A.A. Volinsky* , J. Vella size, thin film microstructure and mechanical properties have become critical parameters-K dielectric materials and novel interconnects (Cu). For most reliability tests, knowledge of the thin film

  4. Enhanced Radiation Tolerance in Sputtered Cu/V Multilayers

    E-Print Network [OSTI]

    Fu, Engang

    2010-10-12T23:59:59.000Z

    and mechanical properties of as-deposited Cu/V multilayer films are systemically investigated, providing the basis for studying radiation damage mechanisms. Sputter-deposited Cu/V multilayers are subjected to helium (He) ion irradiation at room temperature with a...

  5. Introduction THE YERINGTON DISTRICT, Nevada, contains porphyry Cu(Mo),

    E-Print Network [OSTI]

    Barton, Mark D.

    55 Introduction THE YERINGTON DISTRICT, Nevada, contains porphyry Cu(Mo), Cu skarn, Fe oxide with the Jurassic Yerington batholith, which serves as either host rock or as source for heat and ma- terials of the Yerington Porphyry Copper District: Magmatic to Nonmagmatic Sources of Hydrothermal Fluids, Their Flow Paths

  6. Longueur de diffusion des porteurs minoritaires et structure de jonction des diodes Cu/Cu2O (*)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    short circuit current and with the shift from cell to cell of the peak in the photovoltaic spectral cells are not sui- table for an efficient photovoltaic solar energy conversion. Revue Phys. Appl. 15, the photovoltaic spectrum and the electron beam induced current (EBIC) methods. In the two last cases, Cu/Cu2O

  7. Application of cluster-plus-glue-atom model to barrierless CuNiTi and CuNiTa films

    SciTech Connect (OSTI)

    Li, Xiaona, E-mail: lixiaona@dlut.edu.cn; Ding, Jianxin; Wang, Miao; Dong, Chuang [Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024 (China); Chu, Jinn P. [Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan (China)

    2014-11-01T23:59:59.000Z

    To improve the thermal stability of copper and avoid its diffusion into surrounding dielectrics or interfacial reactions with them, the authors applied the cluster-plus-glue-atom model to investigate barrierless CuNiM (M?=?Ti or Ta) seed layers. The dissolution of the third element (Ti or Ta) in the Cu lattice with the aid of Ni significantly improved the thermal stability of the Cu seed layer. The appropriate M/Ni (M?=?Ti or Ta) ratio was selected to obtain a low resistivity: the resistivity was as low as 2.5??? cm for the (Ti{sub 1.5/13.5}Ni{sub 12/13.5}){sub 0.3}Cu{sub 99.7} film and 2.8??? cm for the (Ta{sub 1.1/13.1}Ni{sub 12/13.1}){sub 0.4}Cu{sub 99.6} film after annealing at 500?C for 1?h. After annealing at 500?C for 40?h, the two films remained stable without forming a Cu{sub 3}Si compound. The authors confirmed that the range of applications of the cluster-plus-glue-atom model could be extended. Therefore, a third element M with negative enthalpies of mixing with both Cu and Ni could be selected, under the premise that the mixing enthalpy of MNi is more negative than that of MCu.

  8. Photoelectrochemistry, Electronic Structure, and Bandgap Sizes of Semiconducting Cu(I)-Niobates and Cu(I)-Tantalates

    SciTech Connect (OSTI)

    Maggard, Paul A.

    2013-11-14T23:59:59.000Z

    Semiconducting metal-oxides have remained of intense research interest owing to their potential for achieving efficient solar-driven photocatalytic reactions in aqueous solutions that occur as a result of their bandgap excitation. The photocatalytic reduction of water or carbon dioxide to generate hydrogen or hydrocarbon fuels, respectively, can be driven on p-type (photocathodic) electrodes with suitable band energies. However, metal-oxide semiconductors are typically difficult to dope as p-type with a high mobility of carriers. The supported research led to the discovery of new p-type Cu(I)-niobate and Cu(I)-tantalate film electrodes that can be prepared on FTO glass. New high-purity flux syntheses and the full structural determination of several Cu(I)-containing niobates and tantalates have been completed, as well as new investigations of their optical and photoelectrochemical properties and electronic structures via density-functional theory calculations. For example, CuNbO3, Cu5Ta11O30 and CuNb3O8 were prepared in high purity and their structures were characterized by both single-crystal and powder X-ray diffraction techniques. These two classes of Cu(I)-containing compounds exhibit optical bandgap sizes ranging from ~1.3 eV to ~2.6 eV. Photoelectrochemical measurements of these compounds show strong photon-driven cathodic currents that confirm the p-type semiconductor behavior of CuNbO3, CuNb3O8, and Cu5Ta11O30. Incident-photon-to-current efficiencies are measured that approach greater than ~1%. Electronic-structure calculations based on density functional theory reveal the visible-light absorption stems from a nearly-direct bandgap transition involving a copper-to-niobium or tantalum (d10 to d0) charge-transfer excitations.

  9. Pulse Electrodeposition of Cu-ZnO and Mn-Cu-ZnO Nanowires

    SciTech Connect (OSTI)

    Gupta, Mayank; Pinisetty, D.; Flake, John C.; Spivey, James J.

    2010-01-01T23:59:59.000Z

    CuZnO and MnCuZnO nanowires are attractive catalysts for alcohol synthesis from CO hydrogenation reactions. Nanowire alloys are pulse electrodeposited into track etched polycarbonate membranes using aqueous electrolytes including Mn(NO{sub 3} ){sub 2} , Cu(NO{sub 3} ){sub 2} , Zn(NO{sub 3} ){sub 2} , and NH{sub 4} NO{sub 3} . Pulse waveforms with a cathodic current density of 50.7mAcm{sup ?2} for 50 ms (on-time), with varying off-times (400, 500, and 600 ms), are used to fabricate nanowire arrays (400 nm diameter, 25?m long, and pore density of 1.510{sup 8} pores cm{sup ?2} ). Pulse waveforms allow significantly higher copper concentrations and better control of zinc and manganese concentrations within nanowires. X-ray diffraction results show preferential growth in the (111) direction and crystallite size increases with an increase in off-time. Waveforms with longer off-times (500 and 600 ms) resulted in nanowires with relatively higher copper concentrations due to improved copper transport in nanopores. The nanowire surface has no manganese; however, the core shows manganese, which increases with the decrease in off-time. The effect of deposition conditions and electrolyte composition on nanowire properties are explained and discussed.

  10. An aerial radiological survey of the Davis-Monthan Air Force Base and surrounding area, Tucson, Arizona

    SciTech Connect (OSTI)

    NONE

    1995-09-01T23:59:59.000Z

    An aerial radiological survey, which was conducted from March 1 to 13, 1995, covered a 51-square-mile (132-square-kilometer) area centered on the Davis-Monthan Air Force Base (DMAFB) in Tucson, Arizona. The results of the survey are reported as contours of bismuth-214 ({sup 214}Bi) soil concentrations, which are characteristic of natural uranium and its progeny, and as contours of the total terrestrial exposure rates extrapolated to one meter above ground level. All data were scaled and overlaid on an aerial photograph of the DMAFB area. The terrestrial exposure rates varied from 9 to 20 microroentgens per hour at one meter above the ground. Elevated levels of terrestrial radiation due to increased concentrations of {sup 214}Bi (natural uranium) were observed over the Southern Pacific railroad yard and along portions of the railroad track bed areas residing both within and outside the base boundaries. No man-made, gamma ray-emitting radioactive material was observed by the aerial survey. High-purity germanium spectrometer and pressurized ionization chamber measurements at eight locations within the base boundaries were used to verify the integrity of the aerial results. The results of the aerial and ground-based measurements were found to be in agreement. However, the ground-based measurements were able to detect minute quantities of cesium-137 ({sup 137}Cs) at six of the eight locations examined. The presence of {sup 137}Cs is a remnant of fallout from foreign and domestic atmospheric nuclear weapons testing that occurred in the 1950s and early 1960s. Cesium-137 concentrations varied from 0.1 to 0.3 picocuries per gram, which is below the minimum detectable activity of the aerial system.

  11. Nanocrystal Photovoltaics: The Case of Cu2S-CdS

    E-Print Network [OSTI]

    Rivest, Jessica Louis Baker

    2011-01-01T23:59:59.000Z

    systems, sensors, light-emitting diodes, photovoltaics andsystem. ) Research on Cu 2 S nanocrystal photovoltaics may

  12. Coupled skyrmion sublattices in Cu2OSeO3

    SciTech Connect (OSTI)

    Langner, M.C.; Roy,, S.; Mishra, S. K.; Lee, J. C. T.; Shi,, X. W.; Hossain, M. A.; Chuang, Y.-D.; Seki, S.; Tokura, Y.; Kevan, S. D.; Schoenlein, R. W.

    2014-04-18T23:59:59.000Z

    We report the observation of a skyrmion lattice in the chiral multiferroic insulator Cu2OSeO3 using Cu L3-edge resonant soft x-ray diffraction. We observe the unexpected existence of two distinct skyrmion sub-lattices that arise from inequivalent Cu sites with chemically identical coordination numbers but different magnetically active orbitals . The skyrmion sublattices are rotated with respect to each other implying a long wavelength modulation of the lattice. The modulation vector is controlled with an applied magnetic field, associating this Moir'e-like phase with a continuous phase transition. Our findings will open a new class of science involving manipulation of quantum topological states.

  13. A Review of "Translation and the Poets Life. The Ethics of Translating in English Culture, 1645-1726" by Paul Davis

    E-Print Network [OSTI]

    Rudrum, Alan

    2011-01-01T23:59:59.000Z

    20 seventeenth-century news noted the following mistakes: Mason Lowance?s name is misspelled on page 101 and 314; typos occur on page 235 (than for then) and page 245 (temp for tempt?twice). Paul Davis. Translation and the Poet?s Life. The Ethics... to examine translation as a distinctive mode of imaginative conduct for the five principal Augustan poet translators; his concern is what the poets themselves thought they were doing. reviews 21 Some philosophers had rejected metaphor as an impediment...

  14. Crystallization of Zr2PdxCu(1-x) and Zr2NixCu(1-x) Metallic Glass

    SciTech Connect (OSTI)

    Min Xu

    2008-08-18T23:59:59.000Z

    One interesting aspect of rretallic glasses is the numerous instances of the deviation of the phase selection from the amorphous state to thermodynamically stable phases during the crystallization process. Their devitrification pathways allow us to study the relationship between the original amorphous structure and their crystalline counter parts. Among the various factors of phase selections, size and electronic effects have been most extensively studied. Elucidating the phase selection process of a glassy alloy will be helpful to fill in the puzzle of the changes from disordered to ordered structures. In this thesis, Two model Zr{sub 2}Pd{sub x}Cu{sub (1-x)} and Zr{sub 2}Ni{sub x}Cu{sub (1-x)} (x = 0, 0.25, 0.5, 0.75 and 1) glassy systems were investigated since: (1) All of the samples can be made into a homogenous metallic glass; (2) The atomic radii differ from Pd to Cu is by 11%, while Ni has nearly the identical atomic size compare to Cu. Moreover, Pd and Ni differ by only one valence electron from Cu. Thus, these systems are ideal to test the idea of the effects of electronic structure and size factors; (3) The small number of components in these pseudo binary systems readily lend themselves to theoretical modeling. Using high temperature X-ray diffraction {HTXRD) and thermal analysis, topological, size, electronic, bond and chemical distribution factors on crystallization selections in Zr{sub 2}Pd{sub x}Cu{sub (1-x)} and Zr{sub 2}Ni{sub x}Cu{sub (1-x)} metallic glass have been explored. All Zr{sub 2}Pd{sub x}Cu{sub (1-x)} compositions share the same Cu11b phase with different pathways of meta-stable, icosahedral quasicrystalline phase (i-phase), and C16 phase formations. The quasicrystal phase formation is topologically related to the increasing icosahedral short range order (SRO) with Pd content in Zr{sub 2}Pd{sub x}Cu{sub (1x)} system. Meta-stable C16 phase is competitive with C11b phase at x = 0.5, which is dominated by electronic structure rather than size effects. Cu-rich and Ni-rich compositions in Zr{sub 2}Ni{sub x}Cu{sub (1-x)} trend to divitrify to C11b or C16 phases respectively. In the proposed pseudo binary phase diagram, the domain of C16, C11b and co-existence phases are mainly related with the topology in the amorphous structure and formation enthalpies of crystalline phases.

  15. Induced magnetism in Cu nanoparticles embedded in Co P. Swaminathan

    E-Print Network [OSTI]

    Weaver, John H.

    the effects of changing the nature of confinement to three dimensions by embedding Cu nanoparticles in a Co.1063/1.2806236 Nonmagnetic spacer layers grown between layers of magnetic materials exhibit an induced magnetic moment.1

  16. Reaction kinetics of a-CuInSe2 formation from an In2Se3/CuSe bilayer precursor film

    E-Print Network [OSTI]

    Anderson, Timothy J.

    with Ga or S are proven absorber materials for high efficiency thin film solar cells. Interestingly CIGS system using the stacked elemental film precursors (e.g. glass/Cu/In/Se, glass/Cu/Se, glass

  17. Modified Ni-Cu catalysts for ethanol steam reforming

    SciTech Connect (OSTI)

    Dan, M.; Mihet, M.; Almasan, V.; Borodi, G. [National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Street, 400293, Cluj-Napoca (Romania)] [National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Street, 400293, Cluj-Napoca (Romania); Katona, G.; Muresan, L. [Univ. Babes Bolyai, Fac. Chem. and Chem. Eng.,11 Arany Janos, 400028, Cluj-Napoca (Romania)] [Univ. Babes Bolyai, Fac. Chem. and Chem. Eng.,11 Arany Janos, 400028, Cluj-Napoca (Romania); Lazar, M. D., E-mail: diana.lazar@itim-cj.ro [65-103 Donath Street (Romania)

    2013-11-13T23:59:59.000Z

    Three Ni-Cu catalysts, having different Cu content, supported on ?-alumina were synthesized by wet co-impregnation method, characterized and tested in the ethanol steam reforming (ESR) reaction. The catalysts were characterized for determination of: total surface area and porosity (N{sub 2} adsorption - desorption using BET and Dollimer Heal methods), Ni surface area (hydrogen chemisorption), crystallinity and Ni crystallites size (X-Ray Diffraction), type of catalytic active centers (Hydrogen Temperature Programmed Reduction). Total surface area and Ni crystallites size are not significantly influenced by the addition of Cu, while Ni surface area is drastically diminished by increasing of Cu concentration. Steam reforming experiments were performed at atmospheric pressure, temperature range 150-350C, and ethanol - water molar ration of 1 at 30, using Ar as carrier gas. Ethanol conversion and hydrogen production increase by the addition of Cu. At 350C there is a direct connection between hydrogen production and Cu concentration. Catalysts deactivation in 24h time on stream was studied by Transmission Electron Microscopy (TEM) and temperature-programmed reduction (TPR) on used catalysts. Coke deposition was observed at all studied temperatures; at 150C amorphous carbon was evidenced, while at 350C crystalline, filamentous carbon is formed.

  18. Lattice Thermal conductivity of the Cu3SbSe4-Cu3SbS4 Solid Solution

    SciTech Connect (OSTI)

    Skoug, Eric [Michigan State University, East Lansing; Cain, Jeffrey D. [Michigan State University, East Lansing; Morelli, Donald [Michigan State University, East Lansing; Kirkham, Melanie J [ORNL; Majsztrik, Paul W [ORNL; Lara-Curzio, Edgar [ORNL

    2011-01-01T23:59:59.000Z

    The compositional dependence of the crystal structure and lattice thermal conductivity in the Cu3SbSe4-Cu3SbS4 system has been studied. The lattice parameters of the Cu3SbSe4-xSx compounds decrease linearly with x, and the tetragonal structure (space group no. 121) of the end compounds is maintained at all compositions. The thermal conductivity is much lower than that predicted by a simple rule of mixtures, which is typical for a solid solution. The Debye model produces a very reasonable fit to the experimental lattice thermal conductivity data when phonon scattering due to atomic mass and size differences between Se and S is taken into account. Compounds in this series are likely to improve upon the thermoelectric performance of Cu3SbSe4, which has shown ZT=0.72 when optimized.

  19. Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \\sqrt{s_{NN}} = 200 GeV

    E-Print Network [OSTI]

    STAR Collaboration; H. Agakishiev; M. M. Aggarwal; Z. Ahammed; A. V. Alakhverdyants; I. Alekseev; J. Alford; B. D. Anderson; C. D. Anson; D. Arkhipkin; G. S. Averichev; J. Balewski; L. S. Barnby; D. R. Beavis; N. K. Behera; R. Bellwied; M. J. Betancourt; R. R. Betts; A. Bhasin; A. K. Bhati; H. Bichsel; J. Bielcik; J. Bielcikova; B. Biritz; L. C. Bland; W. Borowski; J. Bouchet; E. Braidot; A. V. Brandin; A. Bridgeman; S. G. Brovko; E. Bruna; S. Bueltmann; I. Bunzarov; T. P. Burton; X. Z. Cai; H. Caines; M. Caldern de la Barca Snchez; D. Cebra; R. Cendejas; M. C. Cervantes; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; J. H. Chen; J. Y. Chen; L. Chen; J. Cheng; M. Cherney; A. Chikanian; K. E. Choi; W. Christie; P. Chung; M. J. M. Codrington; R. Corliss; J. G. Cramer; H. J. Crawford; S. Dash; A. Davila Leyva; L. C. De Silva; R. R. Debbe; T. G. Dedovich; A. A. Derevschikov; R. Derradi de Souza; L. Didenko; P. Djawotho; S. M. Dogra; X. Dong; J. L. Drachenberg; J. E. Draper; J. C. Dunlop; L. G. Efimov; M. Elnimr; J. Engelage; G. Eppley; M. Estienne; L. Eun; O. Evdokimov; R. Fatemi; J. Fedorisin; R. G. Fersch; P. Filip; E. Finch; V. Fine; Y. Fisyak; C. A. Gagliardi; D. R. Gangadharan; A. Geromitsos; F. Geurts; P. Ghosh; Y. N. Gorbunov; A. Gordon; O. Grebenyuk; D. Grosnick; S. M. Guertin; A. Gupta; W. Guryn; B. Haag; O. Hajkova; A. Hamed; L-X. Han; J. W. Harris; J. P. Hays-Wehle; M. Heinz; S. Heppelmann; A. Hirsch; E. Hjort; G. W. Hoffmann; D. J. Hofman; B. Huang; H. Z. Huang; T. J. Humanic; L. Huo; G. Igo; P. Jacobs; W. W. Jacobs; P. G. Jones; C. Jena; F. Jin; J. Joseph; E. G. Judd; S. Kabana; K. Kang; J. Kapitan; K. Kauder; H. Ke; D. Keane; A. Kechechyan; D. Kettler; D. P. Kikola; J. Kiryluk; A. Kisiel; V. Kizka; A. G. Knospe; D. D. Koetke; T. Kollegger; J. Konzer; I. Koralt; L. Koroleva; W. Korsch; L. Kotchenda; V. Kouchpil; P. Kravtsov; K. Krueger; M. Krus; L. Kumar; P. Kurnadi; M. A. C. Lamont; J. M. Landgraf; S. LaPointe; J. Lauret; A. Lebedev; R. Lednicky; J. H. Lee; W. Leight; M. J. LeVine; C. Li; L. Li; N. Li; W. Li; X. Li; X. Li; Y. Li; Z. M. Li; M. A. Lisa; F. Liu; H. Liu; J. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; W. A. Love; Y. Lu; E. V. Lukashov; X. Luo; G. L. Ma; Y. G. Ma; D. P. Mahapatra; R. Majka; O. I. Mall; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; H. Masui; H. S. Matis; Yu. A. Matulenko; D. McDonald; T. S. McShane; A. Meschanin; R. Milner; N. G. Minaev; S. Mioduszewski; A. Mischke; M. K. Mitrovski; B. Mohanty; M. M. Mondal; B. Morozov; D. A. Morozov; M. G. Munhoz; M. Naglis; B. K. Nandi; T. K. Nayak; P. K. Netrakanti; J. M. Nelson; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; K. Oh; A. Ohlson; V. Okorokov; E. W. Oldag; D. Olson; M. Pachr; B. S. Page; S. K. Pal; Y. Pandit; Y. Panebratsev; T. Pawlak; H. Pei; T. Peitzmann; C. Perkins; W. Peryt; S. C. Phatak; P. Pile; M. Planinic; M. A. Ploskon; J. Pluta; D. Plyku; N. Poljak; A. M. Poskanzer; B. V. K. S. Potukuchi; C. B. Powell; D. Prindle; C. Pruneau; N. K. Pruthi; P. R. Pujahari; J. Putschke; H. Qiu; R. Raniwala; S. Raniwala; R. L. Ray; R. Redwine; R. Reed; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; L. Ruan; J. Rusnak; N. R. Sahoo; S. Sakai; I. Sakrejda; T. Sakuma; S. Salur; J. Sandweiss; E. Sangaline; A. Sarkar; J. Schambach; R. P. Scharenberg; A. M. Schmah; T. R. Schuster; J. Seele; J. Seger; I. Selyuzhenkov; P. Seyboth; E. Shahaliev; M. Shao; M. Sharma; S. S. Shi; Q. Y. Shou; E. P. Sichtermann; F. Simon; R. N. Singaraju; M. J. Skoby; N. Smirnov; H. M. Spinka; B. Srivastava; T. D. S. Stanislaus; D. Staszak; S. G. Steadman; J. R. Stevens; R. Stock; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. C. Suarez; N. L. Subba; M. Sumbera; X. M. Sun; Y. Sun; Z. Sun; B. Surrow; D. N. Svirida; T. J. M. Symons; A. Szanto de Toledo; J. Takahashi; A. H. Tang; Z. Tang; L. H. Tarini; T. Tarnowsky; D. Thein; J. H. Thomas; J. Tian; A. R. Timmins; D. Tlusty; M. Tokarev; V. N. Tram; S. Trentalange; R. E. Tribble; P. Tribedy; O. D. Tsai; T. Ullrich; D. G. Underwood; G. Van Buren; G. van Nieuwenhuizen; J. A. Vanfossen Jr.; R. Varma; G. M. S. Vasconcelos; A. N. Vasiliev; F. Videbk; Y. P. Viyogi; S. Vokal; M. Wada; M. Walker; F. Wang; G. Wang; H. Wang; J. S. Wang; Q. Wang; X. L. Wang; Y. Wang; G. Webb; J. C. Webb; G. D. Westfall; C. Whitten Jr.; H. Wieman; S. W. Wissink; R. Witt; W. Witzke; Y. F. Wu; Z. Xiao; W. Xie; H. Xu; N. Xu; Q. H. Xu; W. Xu; Y. Xu; Z. Xu; L. Xue; Y. Yang; P. Yepes; K. Yip; I-K. Yoo; M. Zawisza; H. Zbroszczyk; W. Zhan; J. B. Zhang; S. Zhang; W. M. Zhang; X. P. Zhang; Y. Zhang; Z. P. Zhang; J. Zhao; C. Zhong; W. Zhou; X. Zhu; Y. H. Zhu; R. Zoulkarneev; Y. Zoulkarneeva

    2012-01-04T23:59:59.000Z

    We report new STAR measurements of mid-rapidity yields for the $\\Lambda$, $\\bar{\\Lambda}$, $K^{0}_{S}$, $\\Xi^{-}$, $\\bar{\\Xi}^{+}$, $\\Omega^{-}$, $\\bar{\\Omega}^{+}$ particles in Cu+Cu collisions at \\sNN{200}, and mid-rapidity yields for the $\\Lambda$, $\\bar{\\Lambda}$, $K^{0}_{S}$ particles in Au+Au at \\sNN{200}. We show that at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parameterization based on the fraction of participants that undergo multiple collisions.

  20. Thermopower of Yba2cu3o7-X, Erba2cu3o7-X

    E-Print Network [OSTI]

    BHATNAGAR, AK; PAN, R.; Naugle, Donald G.; GILBERT, GR; PANDEY, RK.

    1990-01-01T23:59:59.000Z

    - mocouple. The thermal emf was measured with a Keith- ley model 148 nanovoltmeter with its analog output con- nected to a digital volmeter for higher resolution. For each measurement, 5T and 5V were averaged over 100 readings taken at an interval of 0... that the Hubbard model pro- vides an explanation for transport in RBa2Cu307 ?al- loys. In the high temperature, strong correlation limit (ke T much greater than the band width &but much less than the on-site Coulomb repulsion U },the thermopower is dominated...

  1. Modified embedded-atom method interatomic potential for the Fe-Cu alloy system and cascade simulations on pure Fe and Fe-Cu alloys

    SciTech Connect (OSTI)

    Lee, Byeong-Joo [Department of Materials Science and Engineering, Pohang University of Science and Technology Pohang 790-784 (Korea, Republic of); Wirth, Brian D. [Nuclear Engineering Department, University of California, Berkeley, Berkeley, California 94720-1730 (United States); Shim, Jae-Hyeok [Nuclear Engineering Department, University of California, Berkeley, Berkeley, California 94720-1730 (United States); Nano-Materials Research Center, Korea Institute of Science and Technology Seoul 136-791 (Korea, Republic of); Kwon, Junhyun; Kwon, Sang Chul; Hong, Jun-Hwa [Nuclear Materials Technology R and D Team, Korea Atomic Energy Research Institute, Taejon 305-353 (Korea, Republic of)

    2005-05-01T23:59:59.000Z

    A modified embedded-atom method (MEAM) interatomic potential for the Fe-Cu binary system has been developed using previously developed MEAM potentials of Fe and Cu. The Fe-Cu potential was determined by fitting to data on the mixing enthalpy and the composition dependencies of the lattice parameters in terminal solid solutions. The potential gives a value of 0.65 eV for the dilute heat of solution and reproduces the increase of lattice parameter of Fe with addition of Cu in good agreement with experiments. The potential was used to investigate the primary irradiation defect formation in pure Fe and Fe-0.5 at. % Cu alloy by a molecular dynamics cascade simulation study with a PKA energy of 2 keV at 573 K. A tendency for self-interstitial atom-Cu binding, the formation of mixed (Fe-Cu) dumbbells and even Cu-Cu dumbbells was observed. Given a positive binding energy between Cu atoms and self-interstitials, Cu transport by an interstitial diffusion mechanism could be proposed to contribute to the formation of Cu-rich precipitates and irradiation-induced embrittlement in nuclear structural steels.

  2. Cu--Pd--M hydrogen separation membranes

    DOE Patents [OSTI]

    Do{hacek over (g)}an, Omer N; Gao, Michael C; Young, Rongxiang Hu; Tafen, De Nyago

    2013-12-17T23:59:59.000Z

    The disclosure provides an H2 separation membrane comprised of an allow having the composition Cu.Sub.(100-x-y)Pd.sub.xM.sub.y, where x is from about 35 to about 50 atomic percent and where y is from greater than 0 to about 20 atomic percent, and where M consists of magnesium, yttrium, aluminum, titanium, lanthanum, or combinations thereof. The M elements act as strong stabilizers for the B2 phase of the allow, and extend the critical temperature of the alloy for a given hydrogen concentration and pressure. Due to the phase stabilization and the greater temperature range over which a B2 phase can be maintained, the allow is well suited for service as a H2 separation membrane, particularly when applicable conditions are established or cycled above about 600.degree. C. over the course of expected operations. In certain embodiments, the B2 phase comprises at least 60 estimated volume percent of the allow at a steady-state temperature of 400.degree. C. The B2 phase stability is experimentally validated through HT-XRD.

  3. SYN T H E S I STHE magazinE OF UC DAVIS CANCER CENTER VOL 14 nO 1 SPRing/SUmmER 2011 making their mark against

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    and treatments. Establishment of an epidemiological "shared resource" will help the cancer center formalize ourSYN T H E S I STHE magazinE OF UC DAVIS CANCER CENTER VOL 14 nO 1 SPRing/SUmmER 2011 making their mark against breast cancer pA g E 2 2 Radiologist brings modern mammography, screening expertise

  4. Efficient 3D inversion of magnetic data via octree mesh discretization, space-filling curves, and Kristofer Davis and Yaoguo Li, Center for Gravity, Electrical, and Magnetics, Colorado School of Mines, Golden,

    E-Print Network [OSTI]

    , and wavelets Kristofer Davis and Yaoguo Li, Center for Gravity, Electrical, and Magnetics, Colorado School transforms on a re-ordered parameter set. The adaptive mesh discretizes the model region by starting transforms by storing only significant coefficients of those functions. This not only increases the speed

  5. Jonathan Woolley is an Associate Research Engineer with the Western Cooling Efficiency Center at the University of California, Davis. Mark Modera is Professor Civil and Environmental Engineering and Director Western Cooling

    E-Print Network [OSTI]

    California at Davis, University of

    and water use efficiency were developed based on the estimated performance of market-available retrofit (WCEC) at the University of California Davis, is a multiple-winner competition that encourages HVAC such that conventional HVAC equipment could qualify with the addition of commercially available add-on evaporative

  6. 13. A. T. Anderson, A. M. Davis, F. Lu, J. Petrol. 41, 449 (2000). 14. M. R. Reid, C. D. Coath, T. M. Harrison, K. D. McKee-

    E-Print Network [OSTI]

    Meehl, Gerald A.

    2000-01-01T23:59:59.000Z

    13. A. T. Anderson, A. M. Davis, F. Lu, J. Petrol. 41, 449 (2000). 14. M. R. Reid, C. D. Coath, T. M. Harrison, K. D. McKee- gan, Earth Planet. Sci. Lett. 150, 27 (1997). 15. C. A. Chesner, J. Petrol. Mineral. Petrol. 29, 275 (1970). 20. MnO/MgO in residual melts of silicic magmas typi- cally increases

  7. Rebecca Harding Davis sets her story of industrial poverty in an iron mill in a town such asWheeling,WestVirginia, represented here in Charles Graham's 1890 rendering.

    E-Print Network [OSTI]

    Martinez, Tony R.

    Rebecca Harding Davis sets her story of industrial poverty in an iron mill in a town such as poverty of the middle class."2 Coppelia Kahn, professor of English and gender studies at Brown University, probably Christian answer" to the poverty of the time.3 Although both critics have strong arguments, "Life

  8. The mission of the UC Davis Solar Collaborative is simple: to find ways to make solar cells more efficient. Even in theory, the efficiency of conventional solar cells is limited to a disappointing 31%. However, this limit is based

    E-Print Network [OSTI]

    Mission The mission of the UC Davis Solar Collaborative is simple: to find ways to make solar cells more efficient. Even in theory, the efficiency of conventional solar cells is limited to a disappointing 31%. However, this limit is based on the traditional operation of solar cells, where an incoming

  9. Jonathan Woolley is an Associate Research Engineer with the Western Cooling Efficiency Center at the University of California, Davis. Mark Modera is Professor Civil and Environmental Engineering and Director Western Cooling

    E-Print Network [OSTI]

    California at Davis, University of

    Jonathan Woolley is an Associate Research Engineer with the Western Cooling Efficiency Center are all some variation of a hybrid system that couples indirect evaporative cooling with high efficiency Western Cooling Efficiency Center at the University of California, Davis ASHRAE2011-86098 Advancing

  10. Formation and diffusion of S-decorated clusters on Cu(111)

    SciTech Connect (OSTI)

    FEIBELMAN,PETER J.

    2000-03-21T23:59:59.000Z

    Because of their strong internal bonding, S-decorated Cu trimers are a likely agent of S-enhanced Cu transport between islands on Cu(111). According to ab-initio calculations, excellent healing of dangling Cu valence results in an ad-Cu{sub 3}S{sub 3} formation energy of only {approximately}0.28 eV, compared to 0.79 eV for a self-adsorbed Cu atom, and a diffusion barrier {le}0.35 eV.

  11. UNIVERSALITY IS Martin Davis

    E-Print Network [OSTI]

    O F 1 #12;Alan Turing's universal machine: Code of M Input to M It provides a model of a memory amazing coincidence I have ever encountered." #12;Alan Turing 1947 (Address delivered to the London

  12. Rich Davies- Biography

    Broader source: Energy.gov [DOE]

    As the Project Lifecycle Steward at PNNL, he has provided leadership and management to more effectively and efficiently enable the conduct of research and development.

  13. Stephen Bolt Adam Davis

    E-Print Network [OSTI]

    Bowen, James D.

    technology #12;Nuclear History 1957 First commercial nuclear power plant comes online 1974 - The first 1,000-Megawatt nuclear plant went into service 1979 - Equipment malfunctions at Three Mile Island Nuclear Plant 1986 Chernobyl disaster 1996 - Watts Bar Unit 1 in Tennessee is the last nuclear power plant to come

  14. Davis- Gary Hall & Council

    E-Print Network [OSTI]

    Unknown

    2011-08-17T23:59:59.000Z

    JOYCE GARY ' ', l TEGHNI'&UES OE' GHARAGTERI ZIN" CHARLEY IN CHARLEY IS l~lY DARLING, AllANDA Il'1 'Tl'E l'lOONLIGHT, AN D TABITHA IN A I~'EAREUL JOY A Thesfs VIRGINIA LEE COl/EN Approved as to style and content by: hairman of Committee Heed.... of Department Hem r December 1972 4 v' 4 2 F '~ Joyce Gary's '1'echnioues of Characterizing Charley in Cherie Is H Darlin, Amends in '1'he Hoonli. ht and Tabitha in A Pearful Jo . (Dece!!!ber 197' j Virginia Lee Cowen, B. A. , Pan American University...

  15. Utah_d_davis

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

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

  16. davis-99.PDF

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron4 Self-Scrubbing:,, , ., ..., ,+ .- web) Establish3 (2001)Anomalous/Lévy

  17. The influence of Se pressure on the electronic properties of CuInSe{sub 2} grown under Cu-excess

    SciTech Connect (OSTI)

    Deprdurand, Valrie; Bertram, Tobias; Regesch, David; Henx, Benjamin; Siebentritt, Susanne [Laboratory for Photovoltaics, Physics and Materials Science Research Unit, University of Luxembourg, L-4422 Belvaux (Luxembourg)

    2014-10-27T23:59:59.000Z

    Standard Cu-poor Cu(In,Ga)Se{sub 2} solar cell absorbers are usually prepared under high Se excess since the electronic properties of the absorbers are better if prepared under high Se pressure. However, in CuInSe{sub 2}, grown under Cu-excess, it was found that solar cell properties improve with lowering the Se pressure, mostly because of reduced tunnel contribution to the recombination path. Lower Se pressure during Cu-rich growth leads to increased (112) texture of the absorber films, to better optical film quality, as seen by increased excitonic luminescence and to lower net doping levels, which explains the reduced tunnelling effect. These findings show an opposite trend from the one observed in Cu-poor Cu(In,Ga)Se{sub 2}.

  18. Distributed Energy Resource Optimization Using a Software as Service (SaaS) Approach at the University of California, Davis Campus

    SciTech Connect (OSTI)

    Michael, Stadler; Marnay, Chris; Donadee, Jon; Lai, Judy; Mgel, Olivier; Bhattacharya, Prajesh; Siddiqui, Afzal

    2011-02-06T23:59:59.000Z

    Together with OSIsoft LLC as its private sector partner and matching sponsor, the Lawrence Berkeley National Laboratory (Berkeley Lab) won an FY09 Technology Commercialization Fund (TCF) grant from the U.S. Department of Energy. The goal of the project is to commercialize Berkeley Lab's optimizing program, the Distributed Energy Resources Customer Adoption Model (DER-CAM) using a software as a service (SaaS) model with OSIsoft as its first non-scientific user. OSIsoft could in turn provide optimization capability to its software clients. In this way, energy efficiency and/or carbon minimizing strategies could be made readily available to commercial and industrial facilities. Specialized versions of DER-CAM dedicated to solving OSIsoft's customer problems have been set up on a server at Berkeley Lab. The objective of DER-CAM is to minimize the cost of technology adoption and operation or carbon emissions, or combinations thereof. DER-CAM determines which technologies should be installed and operated based on specific site load, price information, and performance data for available equipment options. An established user of OSIsoft's PI software suite, the University of California, Davis (UCD), was selected as a demonstration site for this project. UCD's participation in the project is driven by its motivation to reduce its carbon emissions. The campus currently buys electricity economically through the Western Area Power Administration (WAPA). The campus does not therefore face compelling cost incentives to improve the efficiency of its operations, but is nonetheless motivated to lower the carbon footprint of its buildings. Berkeley Lab attempted to demonstrate a scenario wherein UCD is forced to purchase electricity on a standard time-of-use tariff from Pacific Gas and Electric (PG&E), which is a concern to Facilities staff. Additionally, DER-CAM has been set up to consider the variability of carbon emissions throughout the day and seasons. Two distinct analyses of value to UCD are possible using this approach. First, optimal investment choices for buildings under the two alternative objectives can be derived. Second, a week-ahead building operations forecaster has been written that executes DER-CAM to find an optimal operating schedule for buildings given their expected building energy services requirements, electricity prices, and local weather. As part of its matching contribution, OSIsoft provided a full implementation of PI and a server to install it on at Berkeley Lab. Using the PItoPI protocol, this gives Berkeley Lab researchers direct access to UCD's PI data base. However, this arrangement is in itself inadequate for performing optimizations. Additional data not included in UCD's PI database would be needed and the campus was not able to provide this information. This report details the process, results, and lessons learned of this commercialization project.

  19. Thermal Processing Effects on Microstructure and Composition of Cu3SbSe3

    SciTech Connect (OSTI)

    Majsztrik, Paul W [ORNL; Kirkham, Melanie J [ORNL; Garcia Negron, Valerie [Polytechnic University of Puerto Rico (PUPR); Lara-Curzio, Edgar [ORNL; Skoug, Eric [Michigan State University, East Lansing; Morelli, Donald [Michigan State University, East Lansing

    2013-01-01T23:59:59.000Z

    We report on the effects of thermal processing on the microstructure and composition of a system with overall stoichiometry of 3Cu:1Sb:3Se with the aim of producing single-phase Cu3SbSe3. It was found that slowly cooling from the melt produced a multiphase material consisting of Cu2Se and CuSbSe2, but devoid of Cu3SbSe3. Cooling rapidly from the melt resulted in three-phase microstructures consisting of Cu2Se, CuSbSe2, and Cu3SbSe3. Subsequent annealing of the three-phase material between 325 C and 400 C shifted composition towards nearly pure Cu3SbSe3, the target compound of this work. The kinetics of the transformation into Cu3SbSe3 is successfully described using a modified Avrami model, which suggests that diffusion is the rate-controlling step. Values of Young s modulus and hardness, obtained by nanoindentation, are reported for Cu2Se, CuSbSe2, and Cu3SbSe3.

  20. Novel route to synthesize CuO nanoplatelets

    SciTech Connect (OSTI)

    Zarate, R.A. [Departamento de Fisica, Facultad de Ciencias, Universidad Catolica del Norte, Casilla 1280, Antofagasta (Chile)], E-mail: rzarate@ucn.cl; Hevia, F. [Departamento de Quimica, Facultad de Ciencias, Universidad Catolica del Norte, Casilla 1280, Antofagasta (Chile); Fuentes, S. [Departamento de Fisica, Facultad de Ciencias, Universidad Catolica del Norte, Casilla 1280, Antofagasta (Chile); Fuenzalida, V.M. [Departamento de Fisica, Facultad de Ciencias Fisicas y Matematicas, Universidad de Chile, Av. Blanco Encalada 2008, Santiago (Chile); Zuniga, A. [Departamento de Ingenieria Mecanica, Facultad de Ciencias Fisicas y Matematicas, Universidad de Chile, Beauchef 850, Santiago (Chile)

    2007-04-15T23:59:59.000Z

    A new synthesis route to obtain high-purity cupric oxide, CuO, using the hydrothermal reaction of copper sulfide and a NaOH solution in an oxygen atmosphere has been developed. The synthesized products showed nanoplatelet-like morphologies with rectangular cross-sections and dimensions at the nanometric scale. Variations in the oxygen partial pressure and synthesis temperature produced changes in size and shape, being found that the proliferation of nanoplatelet structures occurred at 200 deg. C and 30 bar. - Graphical abstract: Transmission electron microscopy image of a CuO nanoplatelet. The inset is an electron diffraction pattern of this twined CuO nanoplatelet exhibiting a monoclinic crystal structure.

  1. Three approaches to economical photovoltaics: conformal Cu2S, organic luminescent films, and PbSe nanocrystal superlattices

    E-Print Network [OSTI]

    Carbone, Ian Anthony

    2013-01-01T23:59:59.000Z

    approaches to economical photovoltaics: conformal Cu 2 S,routes to more efficient photovoltaics using conformal Cu 2on grid-parity. Progress in Photovoltaics: Research and

  2. NO Chemisorption on Cu/SSZ-13: a Comparative Study from Infrared...

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

    Chemisorption on CuSSZ-13: a Comparative Study from Infrared Spectroscopy and DFT Calculations. NO Chemisorption on CuSSZ-13: a Comparative Study from Infrared Spectroscopy and...

  3. Following the movement of Cu ions in a SSZ-13 zeolite during...

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

    the movement of Cu ions in a SSZ-13 zeolite during dehydration, reduction and adsorption: a combined in situ TP-XRD, Following the movement of Cu ions in a SSZ-13 zeolite during...

  4. Characterization of Cu-SSZ-13 NH3 SCR Catalysts: an in situ FTIR...

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

    of Cu-SSZ-13 NH3 SCR Catalysts: an in situ FTIR Study. Abstract: The adsorption of CO and NO over Cu-SSZ-13 zeolite catalysts, highly active in the selective...

  5. Mechanistic Studies of Methanol Synthesis over Cu from CO/CO2...

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

    of Methanol Synthesis over Cu from COCO2H2H2O Mixtures: the Source of C in Methanol and the Role of Water Mechanistic Studies of Methanol Synthesis over Cu from COCO2H2H2O...

  6. Study of Martensitic Phase transformation in a NiTiCu Thin Film...

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

    Martensitic Phase transformation in a NiTiCu Thin Film Shape Memory Alloy Using Photoelectron Emission Microscopy. Study of Martensitic Phase transformation in a NiTiCu Thin Film...

  7. Bulk Glass Formation in Eutectic of La-Cu-Ni-Al Metallic Alloys

    E-Print Network [OSTI]

    Zhang, Yong

    A eutectic in La-rich La-Cu?.?Ni?.?-Al alloys was determined by studying the melting behaviors and the microstructure observations. The microstructures of the La-Cu-Ni-Al alloys prepared by ...

  8. Thermal Durability of Cu-CHA NH3-SCR Catalysts for Diesel NOx...

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

    Durability of Cu-CHA NH3-SCR Catalysts for Diesel NOx Reduction. Thermal Durability of Cu-CHA NH3-SCR Catalysts for Diesel NOx Reduction. Abstract: Multiple catalytic functions...

  9. Elucidating efficiency losses in cuprous oxide (Cu?O) photovoltaics and identifying strategies for efficiency improvement

    E-Print Network [OSTI]

    Brandt, Riley Eric

    2013-01-01T23:59:59.000Z

    In this thesis, I fabricated and characterized a series of thin-film cuprous oxide (Cu?O) photovoltaic devices. I constructed several different device designs, using sputtered and electrochemically deposited Cu?O. ...

  10. Pb-free Sn-Ag-Cu ternary eutectic solder

    DOE Patents [OSTI]

    Anderson, I.E.; Yost, F.G.; Smith, J.F.; Miller, C.M.; Terpstra, R.L.

    1996-06-18T23:59:59.000Z

    A Pb-free solder includes a ternary eutectic composition consisting essentially of about 93.6 weight % Sn-about 4.7 weight % Ag-about 1.7 weight % Cu having a eutectic melting temperature of about 217 C and variants of the ternary composition wherein the relative concentrations of Sn, Ag, and Cu deviate from the ternary eutectic composition to provide a controlled melting temperature range (liquid-solid ``mushy`` zone) relative to the eutectic melting temperature (e.g. up to 15 C above the eutectic melting temperature). 5 figs.

  11. High strength-high conductivity Cu--Fe composites produced by powder compaction/mechanical reduction

    DOE Patents [OSTI]

    Verhoeven, John D. (Ames, IA); Spitzig, William A. (Ames, IA); Gibson, Edwin D. (Ames, IA); Anderson, Iver E. (Ames, IA)

    1991-08-27T23:59:59.000Z

    A particulate mixture of Cu and Fe is compacted and mechanically reduced to form an "in-situ" Cu-Fe composite having high strength and high conductivity. Compaction and mechanical reduction of the particulate mixture are carried out at a temperature and time at temperature selected to avoid dissolution of Fe into the Cu matrix particulates to a harmful extent that substantially degrades the conductivity of the Cu-Fe composite.

  12. High strength-high conductivity Cu-Fe composites produced by powder compaction/mechanical reduction

    DOE Patents [OSTI]

    Verhoeven, J.D.; Spitzig, W.A.; Gibson, E.D.; Anderson, I.E.

    1991-08-27T23:59:59.000Z

    A particulate mixture of Cu and Fe is compacted and mechanically reduced to form an ''in-situ'' Cu-Fe composite having high strength and high conductivity. Compaction and mechanical reduction of the particulate mixture are carried out at a temperature and time at temperature selected to avoid dissolution of Fe into the Cu matrix particulates to a harmful extent that substantially degrades the conductivity of the Cu-Fe composite. 5 figures.

  13. Hands-on Learning CU architectural engineering students learn their trade

    E-Print Network [OSTI]

    science to increase comfort and energy efficiency. CU is home to state- of-the-art heating, ventilating

  14. Distinct oxygen hole doping in different layers of Sr?CuO4-?/La?CuO? superlattices

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

    Smadici, S.; Lee, J. C. T.; Rusydi, A.; Logvenov, G.; Bozovic, I.; Abbamonte, P.

    2012-03-01T23:59:59.000Z

    X-ray absorption in Sr?CuO4-?/La?CuO? (SCO/LCO) superlattices shows a variable occupation with doping of a hole state different from holes doped for x?xoptimal in bulk La2-xSrxCuO? and suggests that this hole state is on apical oxygen atoms and polarized in the a-b plane. Considering the surface reflectivity gives a good qualitative description of the line shapes of resonant soft x-ray scattering. The interference between superlattice and surface reflections was used to distinguish between scatterers in the SCO and the LCO layers, with the two hole states maximized in different layers of the superlattice.

  15. Effect of CNTs on precipitation hardening behavior of CNT/AlCu composites

    E-Print Network [OSTI]

    Hong, Soon Hyung

    Effect of CNTs on precipitation hardening behavior of CNT/Al­Cu composites Dong H. Nam a , Yun K June 2012 A B S T R A C T The precipitation hardening behavior of CNT/Al­Cu composites was investigated accelerated the precipitation hardening behavior of CNT/Al­Cu composites due to the generation of excess

  16. Enantiospecific Desorption of R-and S-Propylene Oxide from a Chiral Cu(643) Surface

    E-Print Network [OSTI]

    Gellman, Andrew J.

    Enantiospecific Desorption of R- and S-Propylene Oxide from a Chiral Cu(643) Surface Joshua D kinetics of R- and S-propylene oxide from Cu(643)R and Cu(643)S using temperature-programmed desorption described in this communication have made use of a simpler chiral molecule, propylene oxide, with a single

  17. Cu(In,Ga)Se2based Photovoltaics: Challenges and Opportunities

    E-Print Network [OSTI]

    Firestone, Jeremy

    % Different companies, processes, substrates Substrate Mo Cu(InGa)Se2 buffer TCO Cu(InGa)Se2 Solar Cells #12-evaporation using 3-stage process (ZSW, NREL) Reaction of sputtered precursors (Solar Frontier) From pilot; High optical absorption Unique properties for solar cells Compositional tolerance Cu(InGa)Se2 Thin

  18. DISSERTATION DEVICE PHYSICS OF Cu(In,Ga)Se2 THIN-FILM SOLAR CELLS

    E-Print Network [OSTI]

    Sites, James R.

    DISSERTATION DEVICE PHYSICS OF Cu(In,Ga)Se2 THIN-FILM SOLAR CELLS Submitted by Markus Gloeckler PHYSICS OF Cu(In,Ga)Se2 THIN-FILM SOLAR CELLS BE ACCEPTED AS FULFILLING IN PART REQUIREMENTS OF Cu(In,Ga)Se2 THIN-FILM SOLAR CELLS Thin-film solar cells have the potential to be an important

  19. Plasticity in Cu thin films: an experimental investigation of the effect of microstructure

    E-Print Network [OSTI]

    Plasticity in Cu thin films: an experimental investigation of the effect of microstructure A thesis Author Joost J. Vlassak Yong Xiang Plasticity in Cu thin films: an experimental investigation is constructed. The elastic-plastic behavior of Cu films is studied with emphasis on the effects

  20. Study of triangular flow $v_3$ in Au+Au and Cu+Cu collisions with a multiphase transport model

    E-Print Network [OSTI]

    Kai Xiao; Na Li; Shusu Shi; Feng Liu

    2012-01-13T23:59:59.000Z

    We studied the relation between the initial geometry anisotropy and the anisotropic flow in a multiphase transport model (AMPT) for both Au+Au and Cu+Cu collisions at $\\sqrt{s_{NN}}$ = 200 GeV. It is found that unlike the elliptic flow $v_2$, little centrality dependence of the triangular flow $v_3$ is observed. After removing the initial geometry effect, $v_3/\\epsilon_3$ increases with the transverse particle density, which is similar to $v_2/\\epsilon_2$. The transverse momentum ($p_T$) dependence of $v_3$ from identified particles is qualitatively similar to the $p_T$ dependence of $v_2$.

  1. J/psi production at high transverse momenta in p plus p and Cu plus Cu collisions at root s(NN)=200 GeV

    E-Print Network [OSTI]

    Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Benedosso, F.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bombara, M.; Bonner, B. E.; Botje, M.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bruna, E.; Bueltmann, S.; Burton, T. P.; Bystersky, M.; Cai, X. Z.; Caines, H.; Sanchez, M. Calderon de la Barca; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Clarke, R. F.; Codrington, M. J. M.; Corliss, R.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Daugherity, M.; De Silva, L. C.; Dedovich, T. G.; DePhillips, M.; Derevschikov, A. A.; de Souza, R. Derradi; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Edwards, W. R.; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Feng, A.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, Carl A.; Gaillard, L.; Gangadharan, D. R.; Ganti, M. S.; Garcia-Solis, E. J.; Geromitsos, A.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Grube, B.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Heppelmann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Hollis, R. S.; Huang, H. Z.; Humanic, T. J.; Huo, L.; Igo, G.; Iordanova, A.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jena, C.; Jin, F.; Jones, C. L.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Keane, D.; Kechechyan, A.; Kettler, D.; Khodyrev, V. Yu; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Kopytine, M.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Krus, M.; Kuhn, C.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; LaPointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C. -H; Lee, J. H.; Leight, W.; LeVine, M. J.; Li, C.; Li, N.; Li, Y.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, J.; Liu, L.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Matis, H. S.; Matulenko, Yu A.; McDonald, D.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, Saskia; Mischke, A.; Mohanty, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okada, H.; Okorokov, V.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Pile, P.; Planinic, M.; Pluta, J.; Plyku, D.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Pujahari, P. R.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Sahoo, R.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Shi, X. -H; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Snellings, R.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, T. D. S.; Staszak, D.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Symons, T. J. M.; de Toledo, A. Szanto; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Tram, V. N.; Trattner, A. L.; Trentalange, S.; Tribble, Robert E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; Van Leeuwen, M.; Molen, A. M. Vander; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasilevski, I. M.; Vasiliev, A. N.; Videbaek, F.; Vigdor, S. E.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.

    2009-01-01T23:59:59.000Z

    2University of Birmingham, Birmingham, United Kingdom 3Brookhaven National Laboratory, Upton, New York 11973, USA 4University of California, Berkeley, California 94720, USA 5University of California, Davis, California 95616, USA 6University... volume where the dissociation can occur [5]. At higher beam energy (?sNN = 200 GeV), the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC) has measured J/? suppression for pT < 5 GeV/c in central (small impact parameter) Au+ Au...

  2. Kinetic Controls on Cu and Pb Sorption by Ferrihydrite

    E-Print Network [OSTI]

    Sparks, Donald L.

    time. To determine key factors controlling the kinetics, we measured Cu and Pb uptake as a function that the surfaces of primary particles with diameters of only a few nanometers are accessible even after aggregation ferrihydrite aggregates or the branched structure of primary ferrihydrite particles. Consequently, they fitted

  3. Peter C. Chu Mail Code: OC/Cu

    E-Print Network [OSTI]

    Journal of Oceanography, 2008 - present · Editorial Board, the Open Ocean Engineering Journal, 2007Peter C. Chu Professor Mail Code: OC/Cu Department of Oceanography Graduate School of Engineering and Applied Sciences & Wayne E. Meyer Institute of Systems Engineering Monterey, CA 93943 Phone: 831

  4. CU-LASP Test Facilities ! and Instrument Calibration Capabilities"

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    CU-LASP Test Facilities ! and Instrument Calibration Capabilities" Ginger Drake Calibration Group of LASP's vacuum chambers · Ideal for performing top-level instrument tests ­ Thermal Vacuum tests ­ In-band light testing (EUV-IR) · Independently temperature- controlled shroud and platen · Optional 4-axis

  5. Temperature dependent effects during Ag deposition on Cu(110)

    SciTech Connect (OSTI)

    Taylor, T.N.; Muenchausen, R.E.; Hoffbauer, M.A.; Denier van der Gon, A.W.; van der Veen, J.F. (Los Alamos National Lab., NM (USA); FOM-Instituut voor Atoom-en Molecuulfysica, Amsterdam (Netherlands))

    1989-01-01T23:59:59.000Z

    The composition, structure, and morphology of ultrathin films grown by Ag deposition on Cu(110) were monitored as a function of temperature using low-energy electron diffraction (LEED), Auger electron spectroscopy (AES), and medium energy ion scattering (MEIS). Aligned backscattering measurements with 150 keV He ions indicate that the Ag resides on top of the Cu and there is no significant surface compound formation. Measurements with LEED show that the Ag is initially confined to the substrate troughs. Further deposition forces the Ag out of the troughs and results in a split c(2 {times} 4) LEED pattern, which is characteristic of a distorted Ag(111) monolayer template. As verified by both AES and MEIS measurements, postmonolayer deposition of Ag on Cu(110) at 300K leads to a pronounced 3-dimensional clustering. Ion blocking analysis of the Ag clusters show that the crystallites have a (110)-like growth orientation, implying that the Ag monolayer template undergoes a rearrangement. These data are confirmed by low temperature LEED results in the absence of clusters, which indicate that Ag multilayers grow from a Ag--Cu interface where the Ag is captured in the troughs. Changes observed in the film structure and morphology are consistent with a film growth mechanism that is driven by overlayer strain response to the substrate corrugation. 16 refs., 4 figs.

  6. Fall 2010 http://www.columbia.edu/cu/ccbsg/

    E-Print Network [OSTI]

    Qian, Ning

    and Scholars Office 2 2. Department 2 3. Registrar & ID card 3 4. Social Security Card Application 3 5://www.columbia.edu/cu/ccbsg/ 1. ISSOInternational Students and Scholars Office ISSO ISSO I-94 I-20 J-1 Form DS-2019://banking.about.com/od/checkingaccounts/ig/How-to-Write-a- Checkchecking account ATM debit card checking

  7. Electric Fields and Chiral Magnetic Effect in Cu + Au Collisions

    E-Print Network [OSTI]

    Wei-Tian Deng; Xu-Guang Huang

    2015-02-16T23:59:59.000Z

    The non-central Cu + Au collisions can create strong out-of-plane magnetic fields and in-plane electric fields. By using the HIJING model, we study the general properties of the electromagnetic fields in Cu + Au collisions at 200 GeV and their impacts on the charge-dependent two-particle correlator $\\gamma_{q_1q_2}=$ (see main text for definition) which was used for the detection of the chiral magnetic effect (CME). Compared with Au + Au collisions, we find that the in-plane electric fields in Cu + Au collisions can strongly suppress the two-particle correlator or even reverse its sign if the lifetime of the electric fields is long. Combining with the expectation that if $\\gamma_{q_1q_2}$ is induced by elliptic-flow driven effects we would not see such strong suppression or reversion, our results suggest to use Cu + Au collisions to test CME and understand the mechanisms that underlie $\\gamma_{q_1q_2}$.

  8. Cardiologists from CU testing revolutionary heart-attack treatment

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Cardiologists from CU testing revolutionary heart-attack treatment Compiled 4.12.2013 23 of the biologically degradable stent in the treatment of myocardial infarctions (heart-attacks). The results with a metal stent in their heart for the rest of their life; instead, the stent does its work then disappears

  9. Local structure order in Pd??Cu?Si?? liquid

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

    Yue, G. Q.; Zhang, Y.; Sun, Y.; Shen, B.; Dong, F.; Wang, Z. Y.; Zhang, R. J.; Zheng, Y. X.; Kramer, M. J.; Wang, S. Y.; et al

    2015-02-05T23:59:59.000Z

    The short-range order (SRO) in Pd??Cu?Si?? liquid was studied by high energy x-ray diffraction and ab initio molecular dynamics (MD) simulations. The calculated pair correlation functions at different temperatures agree well with the experimental results. The partial pair correlation functions from ab intio MD simulations indicate that Si atoms prefer to be uniformly distributed while Cu atoms tend to aggregate. By performing structure analysis using Honeycutt-Andersen index, Voronoi tessellation, and atomic cluster alignment method, we show that the icosahedron and face-centered cubic SRO increase upon cooling. The dominant SRO is the Pd-centered Pd?Si? motif, namely the structure of which motifmoreis similar to the structure of Pd-centered clusters in the Pd?Si? crystal. The study further confirms the existence of trigonal prism capped with three half-octahedra that is reported as a structural unit in Pd-based amorphous alloys. The majority of Cu-centered clusters are icosahedra, suggesting that the presence of Cu is benefit to promote the glass forming ability.less

  10. Influence of Al/CuO reactive multilayer films additives on exploding foil initiator

    SciTech Connect (OSTI)

    Zhou Xiang; Shen Ruiqi; Ye Yinghua; Zhu Peng; Hu Yan; Wu Lizhi [School of Chemical Engineeering, Nanjing University of Science and Technology, Nanjing (China)

    2011-11-01T23:59:59.000Z

    An investigation on the influence of Al/CuO reactive multilayer films (RMFs) additives on exploding foil initiator was performed in this paper. Cu film and Cu/Al/CuO RMFs were produced by using standard microsystem technology and RF magnetron sputtering technology, respectively. Scanning electron microscopy characterization revealed the distinct layer structure of the as-deposited Al/CuO RMFs. Differential scanning calorimetry was employed to ascertain the amount of heat released in the thermite reaction between Al films and CuO films, which was found to be 2024 J/g. Electrical explosion tests showed that 600 V was the most matching voltage for our set of apparatus. The explosion process of two types of films was observed by high speed camera and revealed that compared with Cu film, an extra distinct combustion phenomenon was detected with large numbers of product particles fiercely ejected to a distance of about six millimeters for Cu/Al/CuO RMFs. By using the atomic emission spectroscopy double line technique, the reaction temperature was determined to be about 6000-7000 K and 8000-9000 K for Cu film and Cu/Al/CuO RMFs, respectively. The piezoelectricity of polyvinylidene fluoride film was employed to measure the average velocity of the slapper accelerated by the explosion of the films. The average velocities of the slappers were calculated to be 381 m/s and 326 m/s for Cu film and Cu/Al/CuO RMFs, respectively, and some probable reasons were discussed with a few suggestions put forward for further work.

  11. $J/?$ production in Au+Au/Cu+Cu collisions at $\\sqrt{s}_{NN}$=200 GeV and the threshold model

    E-Print Network [OSTI]

    A. K. Chaudhuri

    2006-10-09T23:59:59.000Z

    Using the QGP motivated threshold model, where all the $J/\\psi$'s are suppressed above a threshold density, we have analyzed the preliminary PHENIX data on the centrality dependence of nuclear modification factor for $J/\\psi$'s in Cu+Cu and in Au+Au collisions, at RHIC energy, $\\sqrt{s}_{NN}$=200 GeV. Centrality dependence of $J/\\psi$ suppression in Au+Au collisions are well explained in the model for threshold densities in ranges of 3.6-3.7 $fm^{-2}$. $J/\\psi$ suppression in Cu+Cu collisions on the other hand are not explained in the model.

  12. Simple Template-Free Solution Route for the Controlled Synthesis of Cu(OH)2 and CuO Nanostructures

    E-Print Network [OSTI]

    Qi, Limin

    , People's Republic of China ReceiVed: July 21, 2004; In Final Form: August 29, 2004 The controlled attracted considerable attention due to their fundamental importance and potential wide-ranging applications Orthorhombic Cu2(OH)3- Cl was recently found in living organisms as the first identified copper

  13. Energy and system size dependence of phi meson production in Cu+Cu and Au+Au collisions

    SciTech Connect (OSTI)

    STAR Coll

    2008-10-28T23:59:59.000Z

    We study the beam-energy and system-size dependence of {phi} meson production (using the hadronic decay mode {phi} {yields} K{sup +}K{sup -}) by comparing the new results from Cu + Cu collisions and previously reported Au + Au collisions at {radical}s{sub NN} = 62.4 and 200 GeV measured in the STAR experiment at RHIC. Data presented are from midrapidity (|y| < 0.5) for 0.4 < p{sub T} < 5 GeV/c. At a given beam energy, the transverse momentum distributions for {phi} mesons are observed to be similar in yield and shape for Cu + Cu and Au + Au colliding systems with similar average numbers of participating nucleons. The {phi} meson yields in nucleus-nucleus collisions, normalized by the average number of participating nucleons, are found to be enhanced relative to those from p + p collisions with a different trend compared to strange baryons. The enhancement for {phi} mesons is observed to be higher at {radical}s{sub NN} = 200 GeV compared to 62.4 GeV. These observations for the produced {phi}(s{bar s}) mesons clearly suggest that, at these collision energies, the source of enhancement of strange hadrons is related to the formation of a dense partonic medium in high energy nucleus-nucleus collisions and cannot be alone due to canonical suppression of their production in smaller systems.

  14. Effect of CNTs dispersion on the thermal and mechanical properties of Cu/CNTs nanocomposites

    SciTech Connect (OSTI)

    Muhsan, Ali Samer, E-mail: alisameer2007@gmail.com, E-mail: faizahmad@petronas.com.my; Ahmad, Faiz, E-mail: alisameer2007@gmail.com, E-mail: faizahmad@petronas.com.my; Yusoff, Puteri Sri Melor Megat Bt, E-mail: puteris@petronas.com.my [Department of Mechanical Engineering, Universiti Teknologi PETRONAS (UTP) (Malaysia); Mohamed, Norani M., E-mail: noranimuti-mohamed@petronas.com.my [Centre of Innovative Nanostructures and Nanodevices (COINN), UTP (Malaysia); Raza, M. Rafi, E-mail: rafirazamalik@gmail.com [Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor (Malaysia)

    2014-10-24T23:59:59.000Z

    Modified technique of metal injection molding (MIM) was used to fabricate multiwalled carbon nanotube (CNT) reinforced Cu nanocomposites. The effect of adding different amount of CNTs (0-10 vol.%) on the thermal and mechanical behaviour of the fabricated nanocomposites is presented. Scanning electron microscope analysis revealed homogenous dispersion of CNTs in Cu matrices at different CNTs contents. The experimentally measured thermal conductivities of Cu/CNTs nanocomposites showed extraordinary increase (76% higher than pure sintered Cu) with addition of 10 vol.% CNTs. As compared to the pure sintered Cu, increase in modulus of elasticity (Young's modulus) of Cu/CNTs nanocomposites sintered at 1050C for 2.5 h was measured to be 48%. However, in case of 7.5 vol.% CNTs, Young's modulus was increased significantly about 51% compared to that of pure sintered Cu.

  15. The Growth of Thin Epitaxial Copper Films on Ruthenium (0001)and Oxygen-Precovered Ruthenium (0001) as studied by x-rayphotoelectron diffraction. University of California, Davis, Department of Physics, Ph.D. Thesis

    SciTech Connect (OSTI)

    Ruebush, Scott Daniel

    1997-06-01T23:59:59.000Z

    In the first part of this dissertation, the variation of mean emitter depths with direction for core photoelectron emission from single crystals, including the effects of both isotropic inelastic scattering and single and multiple elastic scattering was theoretically studied. The mean emitter depth was found to vary by as much as 30% with direction. In the second part of this dissertation, x-ray photoelectron diffraction (XPD) was used to study the structure and growth mechanisms of Cu films grown on a clean and an oxygen-precovered Ru(OOO1) surface. Experimental Cu 2p3/2 (Ekin = 556 eV) and Ru 3d (Ekin = 1205 eV) intensities were measured for Cu coverages from submonolayer up to several monolayer (ML) on the clean Ru(OOO1) surface. In addition, the O 1s (Ekin = 958 eV) intensity was measured for Cu grown on oxygen precovered Ru(OOO1). These XPD intensities have been analyzed using single scattering cluster (SSC) and multiple scattering cluster (MSC) models. The first Cu layer has been found to grow pseudomorphically on the Ru(OOO1) surface in agreement with prior studies of the Cu/Ru(OOO 1) system. Thus, the initial growth is layer-by-layer. For higher coverages, XPD shows that the short-range structure of the Cu films is fcc Cu(l 11), but with significant interlayer relaxation (compared to bulk Cu(l 11)) that persists up to {ge}8 ML. When oxygen is preadsorbed on the Ru(OOO1) surface before Cu film growth (possibly to act as a surfactant promoting smoother growth), XPD shows that the first ~3 ML of Cu grow as 3-D islands. In addition, XPD shows that, during Cu growth, all of the oxygen "floats" on the CU surface, in contrast to prior studies which found that 30% of the oxygen remains at the Cu/Ru intetiace. XPD also indicates that the oxygen is highly disordered on the Cu overlayer surface. In thicker layers with oxygen prsent, the Cu grows as Cu(l 11) with equal occupations of two possible domains rotated by 1800 from each other. In general, this work demonstrates the considerable usefulness of XPD in studying epitaxial overlayer growth with and without surfactants present.

  16. J/psi production at high transverse momenta in p plus p and Cu plus Cu collisions at root s(NN)=200 GeV

    E-Print Network [OSTI]

    Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Benedosso, F.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bombara, M.; Bonner, B. E.; Botje, M.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bruna, E.; Bueltmann, S.; Burton, T. P.; Bystersky, M.; Cai, X. Z.; Caines, H.; Sanchez, M. Calderon de la Barca; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Clarke, R. F.; Codrington, M. J. M.; Corliss, R.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Daugherity, M.; De Silva, L. C.; Dedovich, T. G.; DePhillips, M.; Derevschikov, A. A.; de Souza, R. Derradi; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Edwards, W. R.; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Feng, A.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, Carl A.; Gaillard, L.; Gangadharan, D. R.; Ganti, M. S.; Garcia-Solis, E. J.; Geromitsos, A.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Grube, B.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Heppelmann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Hollis, R. S.; Huang, H. Z.; Humanic, T. J.; Huo, L.; Igo, G.; Iordanova, A.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jena, C.; Jin, F.; Jones, C. L.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Keane, D.; Kechechyan, A.; Kettler, D.; Khodyrev, V. Yu; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Kopytine, M.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Krus, M.; Kuhn, C.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; LaPointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C. -H; Lee, J. H.; Leight, W.; LeVine, M. J.; Li, C.; Li, N.; Li, Y.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, J.; Liu, L.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Matis, H. S.; Matulenko, Yu A.; McDonald, D.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, Saskia; Mischke, A.; Mohanty, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okada, H.; Okorokov, V.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Pile, P.; Planinic, M.; Pluta, J.; Plyku, D.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Pujahari, P. R.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Sahoo, R.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Shi, X. -H; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Snellings, R.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, T. D. S.; Staszak, D.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Symons, T. J. M.; de Toledo, A. Szanto; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Tram, V. N.; Trattner, A. L.; Trentalange, S.; Tribble, Robert E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; Van Leeuwen, M.; Molen, A. M. Vander; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasilevski, I. M.; Vasiliev, A. N.; Videbaek, F.; Vigdor, S. E.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.

    2009-01-01T23:59:59.000Z

    The STAR Collaboration at the Relativistic Heavy Ion Collider presents measurements of J/psi e(+) e(-) at midrapidity and high transverse momentum (pT > 5 GeV/c) in p + p and central Cu + Cu collisions at root s(NN) = 200 GeV. The inclusive J...

  17. Infrared vibrational studies of CO adsorption on Cu/Pt(lll) and CuPt(111) Jo& A. Rodriguez,@ Charles M. Truong, and D. Wayne Goodmanb)

    E-Print Network [OSTI]

    Goodman, Wayne

    Infrared vibrational studies of CO adsorption on Cu/Pt(lll) and CuPt(111) surfaces Jo& A. Rodriguez supported on Pt ( 111) has been studied using infrared reflection absorption spectroscopy (IRAS). Our results indicate that the infrared intensities of adsorbed CO are not representative of the relative

  18. Pion interferometry in Au plus Au and Cu plus Cu collisions at s(NN)=62.4 and 200 GeV

    E-Print Network [OSTI]

    Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Benedosso, F.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bombara, M.; Bonner, B. E.; Botje, M.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bruna, E.; Bueltmann, S.; Burton, T. P.; Bystersky, M.; Cai, X. Z.; Caines, H.; Sanchez, M. Calderon de la Barca; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Clarke, R. F.; Codrington, M. J. M.; Corliss, R.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Daugherity, M.; De Silva, L. C.; Dedovich, T. G.; DePhillips, M.; Derevschikov, A. A.; de Souza, R. Derradi; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Du, F.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Edwards, W. R.; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Feng, A.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, Carl A.; Gaillard, L.; Ganti, M. S.; Gangadharan, D. R.; Garcia-Solis, E. J.; Geromitsos, A.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Grube, B.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Heppelmann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Hollis, R. S.; Huang, H. Z.; Humanic, T. J.; Igo, G.; Iordanova, A.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jena, C.; Jin, F.; Jones, C. L.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Keane, D.; Kechechyan, A.; Kettler, D.; Khodyrev, V. Yu; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Kopytine, M.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Krus, M.; Kuhn, C.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; LaPointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C. -H; Lee, J. H.; Leight, W.; LeVine, M. J.; Li, N.; Li, C.; Li, Y.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, J.; Liu, L.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Matis, H. S.; Matulenko, Yu A.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, Saskia; Mischke, A.; Mitchell, J.; Mohanty, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okada, H.; Okorokov, V.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Panitkin, S. Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Planinic, M.; Pluta, J.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Sahoo, R.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Shi, X. -H; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Snellings, R.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, T. D. S.; Staszak, D.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Symons, T. J. M.; de Toledo, A. Szanto; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Tram, V. N.; Trattner, A. L.; Trentalange, S.; Tribble, Robert E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; van Leeuwen, M.; Vander Molen, A. M.; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasilevski, I. M.; Vasiliev, A. N.; Videbaek, F.; Vigdor, S. E.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Wada, M.; Waggoner, W. T.; Walker, M.

    2009-01-01T23:59:59.000Z

    We present a systematic analysis of two-pion interferometry in Au+Au collisions at s(NN)=62.4 GeV and Cu+Cu collisions at s(NN)=62.4 and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The multiplicity and transverse...

  19. Novel approaches to low temperature transient liquid phase bonding in the In-Sn/Cu and In-Sn-Bi/Cu systems

    E-Print Network [OSTI]

    Fischer, David S., Ph. D. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    A fluxless low temperature transient liquid phase (LTTLP) bonding process was studied as a method of producing Cu/Cu joints below 125C and 75C using interlayer alloys from the In-Sn and In-Sn-Bi systems. Using thermodynamic ...

  20. Surface photovoltage analyses of Cu(In,Ga)S2/CdS and Cu(In,Ga)S2/In2S3 photovoltaic junctions

    E-Print Network [OSTI]

    Osterloh, Frank

    film photovoltaics. While the highest efficiency was achieved for low band-gap absorbers,1 wide bandSurface photovoltage analyses of Cu(In,Ga)S2/CdS and Cu(In,Ga)S2/In2S3 photovoltaic junctions S-Film and Nanotechnology for Photovoltaics, Helmholtz-Zentrum Berlin, Schwarzschildstr. 3, D12489 Berlin-Adlershof, Germany

  1. Magnetic structure of the low-dimensional magnet NaCu{sub 2}O{sub 2}: {sup 63,65}Cu and {sup 23}Na NMR studies

    SciTech Connect (OSTI)

    Sadykov, A. F., E-mail: sadykov@imp.uran.ru; Gerashchenko, A. P.; Piskunov, Yu. V.; Ogloblichev, V. V.; Smolnikov, A. G.; Verkhovskii, S. V.; Buzlukov, A. L.; Arapova, I. Yu. [Russian Academy of Sciences, Institute of Metal Physics, Ural Branch (Russian Federation); Furukawa, Y. [Iowa State University, Ames Laboratory (United States); Yakubovskii, A. Yu. [National Research Centre Kurchatov Institute (Russian Federation); Bush, A. A. [Moscow State Technical University of Radio Engineering, Electronics, and Automation (Russian Federation)

    2014-11-15T23:59:59.000Z

    The magnetic structure of a quasi-one-dimensional frustrated NaCu{sub 2}O{sub 2} magnet single crystal is studied by NMR. The spatial orientation of the planar spin spirals in the copper-oxygen Cu{sup 2+}-O chains is determined, and its evolution as a function of the applied magnetic field direction is analyzed.

  2. Submillimeter and microwave residual losses in epitaxial films of Y-Ba-Cu-O and Tl-Ca-Ba-Cu-O

    SciTech Connect (OSTI)

    Miller, D.; Richards, P.L. [Lawrence Berkeley Lab., CA (United States); Garrison, S.M.; Newman, N. [Conductus, Inc., Sunnyvale, CA (United States); Eom, C.B.; Geballe, T.H. [Stanford Univ., CA (United States). Dept. of Applied Physics; Etemad, S.; Inam, A.; Venkatesan, T. [Bell Communications Research, Inc., Red Bank, NJ (United States); Martens, J.S. [Sandia National Labs., Albuquerque, NM (United States); Lee, W.Y. [International Business Machines Corp., San Jose, CA (United States); Bourne, L.C. [Superconductor Technologies, Inc., Santa Barbara, CA (United States)

    1992-03-01T23:59:59.000Z

    We have used a novel bolometric technique and a resonant technique to obtain accurate submillimeter and microwave residual loss data for epitaxial thin films of YBa{sub 2}Cu{sub 3}O{sub 7}, Tl{sub 2}Ca{sub 2}Ba{sub 2}Cu{sub 3}O{sub 10} and Tl{sub 2}CaBa{sub 2}Cu{sub 2}O{sub 8}. For all films we obtain good agreement between the submillimeter and microwave data, with the residual losses in both the Y-Ba-Cu-O and Tl-Ca-Ba-Cu-O films scaling approximately as frequency squared below {approximately} 1 THz. We are able to fit the losses in the Y-Ba-Cu-O films to a weakly coupled grain model for the a-b plane conductivity, in good agreement with results from a Kramers-Kronig analysis of the loss data. We observe strong phonon structure in the Tl-Ca-Ba-Cu-O films for frequencies between 2 and 21 THz, and are unable to fit these losses to the simple weakly coupled grain model. This is in strong contrast to the case for other high {Tc} superconductors such as YBa{sub 2}Cu{sub 3}O{sub 7}, where phonon structure observed in ceramic samples is absent in epitaxial oriented films and crystals because of the electronic screening due to the high conductivity of the a-b planes.

  3. CuC1 thermochemical cycle for hydrogen production

    DOE Patents [OSTI]

    Fan, Qinbai (Chicago, IL); Liu, Renxuan (Chicago, IL)

    2012-01-03T23:59:59.000Z

    An electrochemical cell for producing copper having a dense graphite anode electrode and a dense graphite cathode electrode disposed in a CuCl solution. An anion exchange membrane made of poly(ethylene vinyl alcohol) and polyethylenimine cross-linked with a cross-linking agent selected from the group consisting of acetone, formaldehyde, glyoxal, glutaraldehyde, and mixtures thereof is disposed between the two electrodes.

  4. Synthesis of BiPbSrCaCuO superconductor

    DOE Patents [OSTI]

    Hults, William L. (Los Alamos, NM); Kubat-Martin, Kimberly A. (Espanola, NM); Salazar, Kenneth V. (Espanola, NM); Phillips, David S. (Los Alamos, NM); Peterson, Dean E. (Los Alamos, NM)

    1994-01-01T23:59:59.000Z

    A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bi.sub.a Pb.sub.b Sr.sub.c Ca.sub.d Cu.sub.e O.sub.f wherein a is from about 1.7 to about 1.9, b is from about 0.3 to about 0.45, c is from about 1.6 to about 2.2, d is from about 1.6 to about 2.2, e is from about 2.97 to about 3.2 and f is 10.+-.z by reacting a mixture of Bi.sub.4 Sr.sub.3 Ca.sub.3 Cu.sub.4 O.sub.16.+-.z, an alkaline earth metal cuprate, e.g., Sr.sub.9 Ca.sub.5 Cu.sub.24 O.sub.41, and an alkaline earth metal plumbate, e.g., Ca.sub.2-x Sr.sub.x PbO.sub.4 wherein x is about 0.5, is disclosed.

  5. Synthesis of BiPbSrCaCuO superconductor

    DOE Patents [OSTI]

    Hults, W.L.; Kubat-Martin, K.A.; Salazar, K.V.; Phillips, D.S.; Peterson, D.E.

    1994-04-05T23:59:59.000Z

    A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bi[sub a]Pb[sub b]Sr[sub c]Ca[sub d]Cu[sub e]O[sub f] wherein a is from about 1.7 to about 1.9, b is from about 0.3 to about 0.45, c is from about 1.6 to about 2.2, d is from about 1.6 to about 2.2, e is from about 2.97 to about 3.2 and f is 10[+-]z by reacting a mixture of Bi[sub 4]Sr[sub 3]Ca[sub 3]Cu[sub 4]O[sub 16[+-]z], an alkaline earth metal cuprate, e.g., Sr[sub 9]Ca[sub 5]Cu[sub 24]O[sub 41], and an alkaline earth metal plumbate, e.g., Ca[sub 2[minus]x]Sr[sub x]PbO[sub 4] wherein x is about 0.5, is disclosed.

  6. Systematic Study of Azimuthal Anisotropy in Cu$+$Cu and Au$+$Au Collisions at $\\sqrt{s_{_{NN}}} = 62.4$ and 200~GeV

    E-Print Network [OSTI]

    A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; H. Al-Bataineh; A. Al-Jamel; J. Alexander; K. Aoki; L. Aphecetche; R. Armendariz; S. H. Aronson; J. Asai; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; G. Baksay; L. Baksay; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; A. Bazilevsky; S. Belikov; R. Bennett; Y. Berdnikov; A. A. Bickley; M. T. Bjorndal; J. G. Boissevain; H. Borel; K. Boyle; M. L. Brooks; D. S. Brown; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; S. Campbell; J. -S. Chai; B. S. Chang; J. -L. Charvet; S. Chernichenko; C. Y. Chi; J. Chiba; M. Chiu; I. J. Choi; T. Chujo; P. Chung; A. Churyn; V. Cianciolo; C. R. Cleven; Y. Cobigo; B. A. Cole; M. P. Comets; P. Constantin; M. Csand; T. Csrg?; T. Dahms; K. Das; G. David; M. B. Deaton; K. Dehmelt; H. Delagrange; A. Denisov; D. d'Enterria; A. Deshpande; E. J. Desmond; O. Dietzsch; A. Dion; M. Donadelli; J. L. Drachenberg; O. Drapier; A. Drees; A. K. Dubey; A. Durum; V. Dzhordzhadze; Y. V. Efremenko; J. Egdemir; F. Ellinghaus; W. S. Emam; A. Enokizono; H. En'yo; B. Espagnon; S. Esumi; K. O. Eyser; D. E. Fields; M. Finger; M. Finger; \\, Jr.; F. Fleuret; S. L. Fokin; B. Forestier; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; S. -Y. Fung; T. Fusayasu; S. Gadrat; I. Garishvili; F. Gastineau; M. Germain; A. Glenn; H. Gong; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; M. Grosse Perdekamp; T. Gunji; H. -. Gustafsson; T. Hachiya; A. Hadj Henni; C. Haegemann; J. S. Haggerty; M. N. Hagiwara; H. Hamagaki; R. Han; H. Harada; E. P. Hartouni; K. Haruna; M. Harvey; E. Haslum; K. Hasuko; R. Hayano; X. He; M. Heffner; T. K. Hemmick; T. Hester; J. M. Heuser; H. Hiejima; J. C. Hill; R. Hobbs; M. Hohlmann; M. Holmes; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; S. Huang; M. G. Hur; T. Ichihara; H. Iinuma; K. Imai; M. Inaba; Y. Inoue; D. Isenhower; L. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; B. V. Jacak; J. Jia; J. Jin; O. Jinnouchi; B. M. Johnson; K. S. Joo; D. Jouan; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; M. Kaneta; J. H. Kang; H. Kanou; T. Kawagishi; D. Kawall; A. V. Kazantsev; S. Kelly; A. Khanzadeev; J. Kikuchi; D. H. Kim; D. J. Kim; E. Kim; Y. -S. Kim; E. Kinney; . Kiss; E. Kistenev; A. Kiyomichi; J. Klay; C. Klein-Boesing; L. Kochenda; V. Kochetkov; B. Komkov; M. Konno; D. Kotchetkov; A. Kozlov; A. Krl; A. Kravitz; P. J. Kroon; J. Kubart; G. J. Kunde; N. Kurihara; K. Kurita; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; Y. S. Lai; J. G. Lajoie; A. Lebedev; Y. Le Bornec; S. Leckey; D. M. Lee; M. K. Lee; T. Lee; M. J. Leitch; M. A. L. Leite; B. Lenzi; X. Li; X. H. Li; H. Lim; T. Lika; A. Litvinenko; M. X. Liu; B. Love; D. Lynch; C. F. Maguire; Y. I. Makdisi; A. Malakhov; M. D. Malik; V. I. Manko; Y. Mao; L. Maek; H. Masui; F. Matathias; M. C. McCain; M. McCumber; P. L. McGaughey; Y. Miake; P. Mike; K. Miki; T. E. Miller; A. Milov; S. Mioduszewski; G. C. Mishra; M. Mishra; J. T. Mitchell; M. Mitrovski; A. Morreale; D. P. Morrison; J. M. Moss; T. V. Moukhanova; D. Mukhopadhyay; J. Murata; S. Nagamiya; Y. Nagata; J. L. Nagle; M. Naglis; I. Nakagawa; Y. Nakamiya; T. Nakamura; K. Nakano; J. Newby; M. Nguyen; B. E. Norman; R. Nouicer; A. S. Nyanin; J. Nystrand; E. O'Brien; S. X. Oda; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; M. Oka; K. Okada; O. O. Omiwade; A. Oskarsson; I. Otterlund; M. Ouchida; K. Ozawa; R. Pak; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; J. Park; W. J. Park; S. F. Pate; H. Pei; J. -C. Peng; H. Pereira; V. Peresedov; D. Yu. Peressounko; C. Pinkenburg; R. P. Pisani; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; G. Roche; A. Romana; M. Rosati; S. S. E. Rosendahl; P. Rosnet; P. Rukoyatkin; V. L. Rykov; S. S. Ryu; B. Sahlmueller; N. Saito; T. Sakaguchi; S. Sakai; H. Sakata; V. Samsonov; H. D. Sato; S. Sato; S. Sawada; J. Seele; R. Seidl; V. Semenov; R. Seto; D. Sharma; T. K. Shea; I. Shein; A. Shevel; T. -A. Shibata; K. Shigaki; M. Shimomura; T. Shohjoh; K. Shoji; A. Sickles; C. L. Silva; D. Silvermyr; C. Silvestre; K. S. Sim; C. P. Singh; V. Singh; S. Skutnik; M. Slune?ka; W. C. Smith; A. Soldatov; R. A. Soltz; W. E. Sondheim; S. P. Sorensen; I. V. Sourikova; F. Staley; P. W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S. P. Stoll; T. Sugitate; C. Suire; J. P. Sullivan; J. Sziklai; T. Tabaru; S. Takagi; E. M. Takagui; A. Taketani; K. H. Tanaka; Y. Tanaka; K. Tanida; M. J. Tannenbaum; A. Taranenko; P. Tarjn; T. L. Thomas; T. Todoroki; M. Togawa; A. Toia; J. Tojo; L. Tomek; H. Torii; R. S. Towell; V-N. Tram; I. Tserruya; Y. Tsuchimoto; S. K. Tuli; H. Tydesj; N. Tyurin; C. Vale; H. Valle

    2014-12-02T23:59:59.000Z

    We have studied the dependence of azimuthal anisotropy $v_2$ for inclusive and identified charged hadrons in Au$+$Au and Cu$+$Cu collisions on collision energy, species, and centrality. The values of $v_2$ as a function of transverse momentum $p_T$ and centrality in Au$+$Au collisions at $\\sqrt{s_{_{NN}}}$=200~GeV and 62.4~GeV are the same within uncertainties. However, in Cu$+$Cu collisions we observe a decrease in $v_2$ values as the collision energy is reduced from 200 to 62.4~GeV. The decrease is larger in the more peripheral collisions. By examining both Au$+$Au and Cu$+$Cu collisions we find that $v_2$ depends both on eccentricity and the number of participants, $N_{\\rm part}$. We observe that $v_2$ divided by eccentricity ($\\varepsilon$) monotonically increases with $N_{\\rm part}$ and scales as ${N_{\\rm part}^{1/3}}$. The Cu$+$Cu data at 62.4 GeV falls below the other scaled $v_{2}$ data. For identified hadrons, $v_2$ divided by the number of constituent quarks $n_q$ is independent of hadron species as a function of transverse kinetic energy $KE_T=m_T-m$ between $0.1Cu$+$Cu data at 62.4 GeV, of $v_2/(n_q\\cdot\\varepsilon\\cdot N^{1/3}_{\\rm part})$ vs $KE_T/n_q$ for all measured particles.

  7. Stripe-to-bubble transition of magnetic domains at the spin reorientation of (Fe/Ni)/Cu/Ni/Cu(001)

    SciTech Connect (OSTI)

    Wu, J.; Choi, J.; Won, C.; Wu, Y. Z.; Scholl, A.; Doran, A.; Hwang, Chanyong; Qiu, Z.

    2010-06-09T23:59:59.000Z

    Magnetic domain evolution at the spin reorientation transition (SRT) of (Fe/Ni)/Cu/Ni/Cu(001) is investigated using photoemission electron microscopy. While the (Fe/Ni) layer exhibits the SRT, the interlayer coupling of the perpendicularly magnetized Ni layer to the (Fe/Ni) layer serves as a virtual perpendicular magnetic field exerted on the (Fe/Ni) layer. We find that the perpendicular virtual magnetic field breaks the up-down symmetry of the (Fe/Ni) stripe domains to induce a net magnetization in the normal direction of the film. Moreover, as the virtual magnetic field increases to exceed a critical field, the stripe domain phase evolves into a bubble domain phase. Although the critical field depends on the Fe film thickness, we show that the area fraction of the minority domain exhibits a universal value that determines the stripe-to-bubble phase transition.

  8. Magnetic properties and interlayer coupling of epitaxial Co/Cu films on Si

    SciTech Connect (OSTI)

    Mansell, R.; Petit, D. C. M. C.; Fernndez-Pacheco, A.; Lavrijsen, R.; Lee, J. H.; Cowburn, R. P. [Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

    2014-08-14T23:59:59.000Z

    Thin films of Co and Co/Cu/Co trilayers with wedged Cu interlayers were grown epitaxially on Cu buffer layers on hydrogen passivated Si(001) wafers. We find that single Co layers have a well-defined four-fold anisotropy but with smaller in-plane anisotropies than observed in Co grown on Cu crystals. RudermanKittelKasuyaYosida (RKKY) interlayer coupling is observed in one Co/Cu/Co sample which is the smoothest of the films as measured by atomic force microscopy. Some of the films also form a dot-like structure on the surface. Intermixing at elevated temperatures between the Cu buffer and Si limits the ability to form flat surfaces to promote RKKY coupling.

  9. Method of fabricating high-efficiency Cu(In,Ga)(Se,S){sub 2} thin films for solar cells

    DOE Patents [OSTI]

    Noufi, R.; Gabor, A.M.; Tuttle, J.R.; Tennant, A.L.; Contreras, M.A.; Albin, D.S.; Carapella, J.J.

    1995-08-15T23:59:59.000Z

    A process for producing a slightly Cu-poor thin film of Cu(In,Ga)(Se,S){sub 2} comprises depositing a first layer of (In,Ga){sub x} (Se,S){sub y} followed by depositing just enough Cu+(Se,S) or Cu{sub x} (Se,S) to produce the desired slightly Cu-poor material. In a variation, most, but not all, (about 90 to 99%) of the (In,Ga){sub x} (Se,S){sub y} is deposited first, followed by deposition of all the Cu+(Se,S) or Cu{sub x} (Se,S) to go near stoichiometric, possibly or even preferably slightly Cu-rich, and then in turn followed by deposition of the remainder (about 1 to 10%) of the (In,Ga){sub x} (Se,S){sub y} to end with a slightly Cu-poor composition. In yet another variation, a small portion (about 1 to 10%) of the (In,Ga){sub x} (Se,S){sub y} is first deposited as a seed layer, followed by deposition of all of the Cu+(Se,S) or Cu{sub x} (Se,S) to make a very Cu-rich mixture, and then followed deposition of the remainder of the (In,Ga){sub x} (Se,S){sub y} to go slightly Cu-poor in the final Cu(In,Ga)(Se,S){sub 2} thin film. 5 figs.

  10. Adsorbate-driven morphological changes on Cu(111) nano-pits

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

    Mudiyanselage, K. [Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.; BMCC-CUNY, New York, NY (United States). Dept. of Science; Xu, F. [Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.; State Univ. of New York (SUNY), Stony Brook, NY (United States). Chemistry Dept.; Hoffmann, F. M. [BMCC-CUNY, New York, NY (United States). Dept. of Science; Hrbek, J. [Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.; Waluyo, I. [Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.; Boscoboinik, J. A. [Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials; Stacchiola, D. J. [Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Dept.

    2015-01-01T23:59:59.000Z

    Adsorbate-driven morphological changes of pitted-Cu(111) surfaces have been investigated following the adsorption and desorption of CO and H. The morphology of the pitted-Cu(111) surfaces, prepared by Ar+ sputtering, exposed a few atomic layers deep nested hexagonal pits of diameters from 8 to 38 nm with steep step bundles. The roughness of pitted-Cu(111) surfaces can be healed by heating to 450-500 K in vacuum. Adsorption of CO on the pitted-Cu(111) surface leads to two infrared peaks at 2089-2090 and 2101-2105 cm-1 for CO adsorbed on under-coordinated sites in addition to the peak at 2071 cm-1 for CO adsorbed on atop sites of the close-packed Cu(111) surface. CO adsorbed on under-coordinated sites is thermally more stable than that of atop Cu(111) sites. Annealing of the CO-covered surface from 100 to 300 K leads to minor changes of the surface morphology. In contrast, annealing of a H covered surface to 300 K creates a smooth Cu(111) surface as deduced from infrared data of adsorbed CO and scanning tunnelling microscopy (STM) imaging. The observation of significant adsorbate-driven morphological changes with H is attributed to its stronger modification of the Cu(111) surface by the formation of a sub-surface hydride with a hexagonal structure, which relaxes into the healed Cu(111) surface upon hydrogen desorption. These morphological changes occur ~150 K below the temperature required for healing of the pitted-Cu(111) surface by annealing in vacuum. In contrast, the adsorption of CO, which only interacts with the top-most Cu layer and desorbs by 160 K, does not significantly change the morphology of the pitted-Cu(111) surface.

  11. Adsorbate-driven morphological changes on Cu(111) nano-pits

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

    Mudiyanselage, K.; Xu, F.; Hoffmann, F. M.; Hrbek, J.; Waluyo, I.; Boscoboinik, J. A.; Stacchiola, D. J.

    2015-01-01T23:59:59.000Z

    Adsorbate-driven morphological changes of pitted-Cu(111) surfaces have been investigated following the adsorption and desorption of CO and H. The morphology of the pitted-Cu(111) surfaces, prepared by Ar+ sputtering, exposed a few atomic layers deep nested hexagonal pits of diameters from 8 to 38 nm with steep step bundles. The roughness of pitted-Cu(111) surfaces can be healed by heating to 450-500 K in vacuum. Adsorption of CO on the pitted-Cu(111) surface leads to two infrared peaks at 2089-2090 and 2101-2105 cm-1 for CO adsorbed on under-coordinated sites in addition to the peak at 2071 cm-1 for CO adsorbed on atop sitesmoreof the close-packed Cu(111) surface. CO adsorbed on under-coordinated sites is thermally more stable than that of atop Cu(111) sites. Annealing of the CO-covered surface from 100 to 300 K leads to minor changes of the surface morphology. In contrast, annealing of a H covered surface to 300 K creates a smooth Cu(111) surface as deduced from infrared data of adsorbed CO and scanning tunnelling microscopy (STM) imaging. The observation of significant adsorbate-driven morphological changes with H is attributed to its stronger modification of the Cu(111) surface by the formation of a sub-surface hydride with a hexagonal structure, which relaxes into the healed Cu(111) surface upon hydrogen desorption. These morphological changes occur ~150 K below the temperature required for healing of the pitted-Cu(111) surface by annealing in vacuum. In contrast, the adsorption of CO, which only interacts with the top-most Cu layer and desorbs by 160 K, does not significantly change the morphology of the pitted-Cu(111) surface.less

  12. Recrystallization method to selenization of thin-film Cu(In,Ga)Se.sub.2 for semiconductor device applications

    DOE Patents [OSTI]

    Albin, David S. (Denver, CO); Carapella, Jeffrey J. (Evergreen, CO); Tuttle, John R. (Denver, CO); Contreras, Miguel A. (Golden, CO); Gabor, Andrew M. (Boulder, CO); Noufi, Rommel (Golden, CO); Tennant, Andrew L. (Denver, CO)

    1995-07-25T23:59:59.000Z

    A process for fabricating slightly Cu-poor thin-films of Cu(In,Ga)Se.sub.2 on a substrate for semiconductor device applications includes the steps of forming initially a slightly Cu-rich, phase separated, mixture of Cu(In,Ga)Se.sub.2 :Cu.sub.x Se on the substrate in solid form followed by exposure of the Cu(In,Ga)Se.sub.2 :Cu.sub.x Se solid mixture to an overpressure of Se vapor and (In,Ga) vapor for deposition on the Cu(In,Ga)Se.sub.2 :Cu.sub.x Se solid mixture while simultaneously increasing the temperature of the solid mixture toward a recrystallization temperature (about 550.degree. C.) at which Cu(In,Ga)Se.sub.2 is solid and Cu.sub.x Se is liquid. The (In,Ga) flux is terminated while the Se overpressure flux and the recrystallization temperature are maintained to recrystallize the Cu.sub.x Se with the (In, Ga) that was deposited during the temperature transition and with the Se vapor to form the thin-film of slightly Cu-poor Cu.sub.x (In,Ga).sub.y Se.sub.z. The initial Cu-rich, phase separated large grain mixture of Cu(In,Ga)Se.sub.2 :Cu.sub.x Se can be made by sequentially depositing or co-depositing the metal precursors, Cu and (In, Ga), on the substrate at room temperature, ramping up the thin-film temperature in the presence of Se overpressure to a moderate anneal temperature (about 450.degree. C.) and holding that temperature and the Se overpressure for an annealing period. A nonselenizing, low temperature anneal at about 100.degree. C. can also be used to homogenize the precursors on the substrates before the selenizing, moderate temperature anneal.

  13. Enthalpy of mixing of liquid Ni-Zr and Cu-Ni-Zr alloys

    SciTech Connect (OSTI)

    Witusiewicz, V.T.; Sommer, F.

    2000-04-01T23:59:59.000Z

    Since the Al-Cu-Ni-Zr system is a basis for the production of bulk amorphous materials by rapid solidification techniques from the liquid state, it is of great scientific interest to determine the partial and the integral thermodynamic functions of liquid and undercooled liquid alloys. Such data, as was pointed out previously, are important in order to understand their extremely good glass-forming ability in multicomponent metallic systems as well as for processing improvements. In order to measure the thermodynamic properties of the Al-Cu-Ni-Zr quaternary, it is necessary to have reliable thermochemical data for its constituent canaries and ternaries first. In a series of articles, the authors have reported in detail the thermodynamic properties of liquid Al-Cu, Al-Ni, Cu-Ni, Cu-Zr, Al-Zr, Al-Cu-Ni, and Al-Cu-Zr alloys. This article deals with the direct calorimetric measurements of the partial and the integral enthalpies of mixing of liquid Ni-Zr and Cu-Ni-Zr alloys and the heat capacity of liquid Ni{sub 26}Zr{sub 74}. In a subsequent article, the authors will present similar data for the liquid ternary Al-Ni-Zr and for the liquid quaternary Al-Cu-Ni-Zr alloys.

  14. Rings sliding on a honeycomb network: Adsorption contours, interactions, and assembly of benzene on Cu(111)

    E-Print Network [OSTI]

    Einstein, Theodore L.

    by anthraquinone AQ on Cu 111 .3 The pore diameter is unprecedentally large, over 5 nm, and each cell encloses over

  15. Crystallization and glass formation in electron and laser beam irradiated Cu-Zr alloys

    SciTech Connect (OSTI)

    Huang, J.S.; Kaufmann, E.N.; Wall, M.A.; Olsen, B.L.

    1987-11-01T23:59:59.000Z

    Four Cu-Zr alloys, Cu/sub 56/Zr/sub 44/, Cu/sub 50/Zr/sub 50/, Cu/sub 47/Zr/sub 53/, and Cu/sub 33/Zr/sub 67/, were surface melted with electron and pulsed laser beams to compare their kinetics of nucleation, growth and glass formation. It was observed that the ease of glass formation increased in the order: Cu/sub 33/Zr/sub 67/, Cu/sub 47/Zr/sub 53/, Cu/sub 56/Zr/sub 44/, and Cu/sub 50/Zr/sub 50/. The nucleation and regrowth produced different metastable phases. At the equiatomic composition, the preferred phase is a CsCl-type (B2) BCC structure. As the composition deviates from this, the preferred phase is either orthorhombic or tetragonal with a much larger unit cell not previously reported in the literature. The maximum growth velocity of these metastable phases was found to be about 0.025 m/s. The slow kinetics are responsible for the ease of glass formation in these systems. 4 refs., 7 figs., 2 tabs.

  16. Structural, optical and ethanol sensing properties of Cu-doped SnO{sub 2} nanowires

    SciTech Connect (OSTI)

    Johari, Anima, E-mail: animajohari@gmail.com; Sharma, Manish [Center for Applied Research in Electronics (CARE), IIT Delhi, Hauz khas, New Delhi-110016 (India); Johari, Anoopshi [THDC Institute of Hydropower Institute of Engineering and Technology, Tehri-249124 (India); Bhatnagar, M. C. [Physics Department, IIT Delhi, Hauz khas, New Delhi-110016 (India)

    2014-04-24T23:59:59.000Z

    In present work, one-dimensional nanostructure of Cu-doped Tin oxide (SnO{sub 2}) was synthesized by using thermal evaporation method in a tubular furnace under Nitrogen (N{sub 2}) ambience. The growth was carried out at atmospheric pressure. SEM and TEM images reveal the growth of wire-like nanostructures of Cu-doped SnO{sub 2} on Si substrate. The XRD analysis confirms that the synthesized SnO{sub 2} nanowires have tetragonal rutile structure with polycrystalline nature and X-ray diffraction pattern also showed that Cu gets incorporated into the SnO{sub 2} lattice. EDX spectra confirm the doping of Cu into SnO{sub 2} nanowires and atomic fraction of Cu in nanowires is ? 0.5 at%. The Vapor Liquid Solid (VLS) growth mechanism for Cu-doped SnO{sub 2} nanowires was also confirmed by EDX spectra. The optical properties of as grown Cu-doped SnO{sub 2} nanowires were studied by using UV-vis spectra which concludes the band gap of about 3.7 eV. As synthesized single Cu-doped SnO{sub 2} nanowire based gas sensor exhibit relatively good performance to ethanol gas. This sensing behaviour offers a suitable application of the Cu-doped SnO{sub 2} nanowire sensor for detection of ethanol gas.

  17. Effect of thermally stable Cu- and Mg-rich aluminides on the high temperature strength of an AlSi12CuMgNi alloy

    SciTech Connect (OSTI)

    Asghar, Z., E-mail: zhdasghar@yahoo.com [Materials Division, Directorate of Technology, PINSTECH, P. O. Nilore, Islamabad (Pakistan); Vienna University of Technology, Institute of Materials Science and Technology, Karlsplatz 13/308, A-1040 Vienna (Austria); Requena, G. [Vienna University of Technology, Institute of Materials Science and Technology, Karlsplatz 13/308, A-1040 Vienna (Austria); Zahid, G.H.; Rafi-ud-Din [Materials Division, Directorate of Technology, PINSTECH, P. O. Nilore, Islamabad (Pakistan)

    2014-02-15T23:59:59.000Z

    The internal architecture of an AlSi12CuMgNi piston alloy, revealed by synchrotron tomography, consists of three dimensional interconnected hybrid networks of Cu-rich aluminides, Mg-rich aluminides and eutectic/primary Si embedded in an ?-Al matrix. The strength at room temperature and at 300C is studied as a function of solution treatment time at 490C and compared with results previously reported for an AlSi12Ni alloy. The addition of 1 wt% Cu and 1 wt% Mg to AlSi12CuMgNi increases the room temperature strength by precipitation hardening while the strength at 300C is similar for both alloys in as-cast condition. The strength of AlSi12CuMgNi decreases with solution treatment time and stabilizes at 4 h solution treatment. The effect of solution treatment time on the strength of the AlSi12CuMgNi alloy is less pronounced than for the AlSi12Ni alloy both at room temperature and at 300C. - Highlights: The 3D microstructure of AlSi12CuMgNi is revealed by synchrotron tomography. An imaging analysis procedure to segment phases with similar contrasts is presented. 1 wt% Cu and Mg results in the formation of 3D networks of rigid phases. AlSi12CuMgNi is stronger than AlSi12Ni owing to the stability of the 3D networks.

  18. Cu-Ni-Fe anodes having improved microstructure

    DOE Patents [OSTI]

    Bergsma, S. Craig; Brown, Craig W.

    2004-04-20T23:59:59.000Z

    A method of producing aluminum in a low temperature electrolytic cell containing alumina dissolved in an electrolyte. The method comprises the steps of providing a molten electrolyte having alumina dissolved therein in an electrolytic cell containing the electrolyte. A non-consumable anode and cathode is disposed in the electrolyte, the anode comprised of Cu--Ni--Fe alloys having single metallurgical phase. Electric current is passed from the anode, through the electrolyte to the cathode thereby depositing aluminum on the cathode, and molten aluminum is collected from the cathode.

  19. The Parameter Space of Graphene CVD on Polycrystalline Cu

    E-Print Network [OSTI]

    Kidambi, Piran Ravichandran; Ducati, Caterina; Dlubak, Bruno; Gardiner, Damian; Weatherup, Robert S.; Martin, Marie-Blandine; Seneor, Pierre; Coles, Harry; Hofmann, Stephan

    2012-09-27T23:59:59.000Z

    growth mechanisms have yet to be fully understood68 and the often narrow empirical process optimizations allow little generalization due to the vast CVD parameter space.4,5,913 Most current literature focuses on exposing polycrystalline Cu4,5 foils... at temperature of 600oC or below, as recently reported for toluene18(~ 600 oC, ID/IG~0.35) and ill-defined C6H6 exposures in hot-wall furnaces.35 We note in this context that these previous efforts have focused on lowering the temperature, but clearly...

  20. Autocatalytic water dissociation on Cu(110) at near ambient conditions

    SciTech Connect (OSTI)

    Mulleregan, Alice; Andersson, Klas; Ketteler, Guido; Bluhm, Hendrik; Yamamoto, Susumu; Ogasawara, Hirohito; Pettersson, Lars G.M.; Salmeron, Miquel; Nilsson, Anders

    2007-05-16T23:59:59.000Z

    Autocatalytic dissociation of water on the Cu(110) metal surface is demonstrated based on X-ray photoelectron spectroscopy studies carried out in-situ under near ambient conditions of water vapor pressure (1 Torr) and temperature (275-520 K). The autocatalytic reaction is explained as the result of the strong hydrogen-bond in the H{sub 2}O-OH complex of the dissociated final state, which lowers the water dissociation barrier according to the Broensted-Evans-Polanyi relations. A simple chemical bonding picture is presented which predicts autocatalytic water dissociation to be a general phenomenon on metal surfaces.

  1. La??xSrxCuO? superconductor nanowire devices

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

    Litombe, N. E. [Harvard Univ., Cambridge, MA (United States); Brookhaven National Lab. (BNL), Upton, NY (United States); Bollinger, A. T. [Brookhaven National Lab. (BNL), Upton, NY (United States); Hoffman, J. E. [Harvard Univ., Cambridge, MA (United States); Bozovic, I. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2014-11-01T23:59:59.000Z

    La??xSrxCuO? nanowire devices have been fabricated and characterized using electrical transport measurements. Nanowires with widths down to 80 nm are patterned using high-resolution electron beam lithography. However, the narrowest nanowires show incomplete superconducting transitions with some residual resistance at T = 4 K. Here, we report on refinement of the fabrication process to achieve narrower nanowire devices with complete superconducting transitions, opening the path to the study of novel physics arising from dimension-limited superconductivity on the nanoscale.

  2. Property:NEPA CU Document | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska:PrecourtOid JumpEligSysSize JumpTechDsc Jump to:"PropertyCU

  3. Characterization of Cu-ZSM-5 Prepared by Solid-State Ion Exchange of H-ZSM-5 with CuCl

    E-Print Network [OSTI]

    Bell, Alexis T.

    Cl occlusion in the zeolite pores. After SSIE, the resulting Cu-ZSM-5 was characterized by XRD, 27 Al MAS NMR and nitriles,15 the desulfurization of diesel fuel,16 and the oxidative carbony- lation of methanol to dimethyl

  4. J/psi production at high transverse momenta in p+p and Cu+Cu collisions at sqrt sNN = 200 GeV

    SciTech Connect (OSTI)

    STAR Collaboration; Abelev, B. I.

    2009-10-27T23:59:59.000Z

    The STAR collaboration at RHIC presents measurements of J/{psi} {yields} e{sup +}e{sup -} at mid-rapidity and high transverse momentum (p{sub T} > 5 GeV/c) in p+p and central Cu+Cu collisions at {radical}sNN = 200 GeV. The inclusive J/{psi} production cross section for Cu+Cu collisions is found to be consistent at high p{sub T} with the binary collision-scaled cross section for p+p collisions, in contrast to previous measurements at lower p{sub T}, where a suppression of J/{psi} production is observed relative to the expectation from binary scaling. Azimuthal correlations of J/{psi} with charged hadrons in p+p collisions provide an estimate of the contribution of B-meson decays to J/{psi} production of 13% {+-} 5%.

  5. $J/?$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\\sqrt{s_{_{NN}}}$ = 200 GeV at STAR

    E-Print Network [OSTI]

    STAR Collaboration; L. Adamczyk; J. K. Adkins; G. Agakishiev; M. M. Aggarwal; Z. Ahammed; I. Alekseev; J. Alford; C. D. Anson; A. Aparin; D. Arkhipkin; E. C. Aschenauer; G. S. Averichev; J. Balewski; A. Banerjee; Z. Barnovska; D. R. Beavis; R. Bellwied; A. Bhasin; A. K. Bhati; P. Bhattarai; H. Bichsel; J. Bielcik; J. Bielcikova; L. C. Bland; I. G. Bordyuzhin; W. Borowski; J. Bouchet; A. V. Brandin; S. G. Brovko; S. Bltmann; I. Bunzarov; T. P. Burton; J. Butterworth; H. Caines; M. Caldern de la Barca Snchez; D. Cebra; R. Cendejas; M. C. Cervantes; P. Chaloupka; Z. Chang; S. Chattopadhyay; H. F. Chen; J. H. Chen; L. Chen; J. Cheng; M. Cherney; A. Chikanian; W. Christie; J. Chwastowski; M. J. M. Codrington; R. Corliss; J. G. Cramer; H. J. Crawford; X. Cui; S. Das; A. Davila Leyva; L. C. De Silva; R. R. Debbe; T. G. Dedovich; J. Deng; A. A. Derevschikov; R. Derradi de Souza; S. Dhamija; B. di Ruzza; L. Didenko; C. Dilks; F. Ding; P. Djawotho; X. Dong; J. L. Drachenberg; J. E. Draper; C. M. Du; L. E. Dunkelberger; J. C. Dunlop; L. G. Efimov; J. Engelage; K. S. Engle; G. Eppley; L. Eun; O. Evdokimov; R. Fatemi; S. Fazio; J. Fedorisin; P. Filip; E. Finch; Y. Fisyak; C. E. Flores; C. A. Gagliardi; D. R. Gangadharan; D. Garand; F. Geurts; A. Gibson; M. Girard; S. Gliske; D. Grosnick; Y. Guo; A. Gupta; S. Gupta; W. Guryn; B. Haag; O. Hajkova; A. Hamed; L-X. Han; R. Haque; J. W. Harris; J. P. Hays-Wehle; S. Heppelmann; A. Hirsch; G. W. Hoffmann; D. J. Hofman; S. Horvat; B. Huang; H. Z. Huang; P. Huck; T. J. Humanic; G. Igo; W. W. Jacobs; H. Jang; E. G. Judd; S. Kabana; D. Kalinkin; K. Kang; K. Kauder; H. W. Ke; D. Keane; A. Kechechyan; A. Kesich; Z. H. Khan; D. P. Kikola; I. Kisel; A. Kisiel; D. D. Koetke; T. Kollegger; J. Konzer; I. Koralt; W. Korsch; L. Kotchenda; P. Kravtsov; K. Krueger; I. Kulakov; L. Kumar; R. A. Kycia; M. A. C. Lamont; J. M. Landgraf; K. D. Landry; J. Lauret; A. Lebedev; R. Lednicky; J. H. Lee; W. Leight; M. J. LeVine; C. Li; W. Li; X. Li; X. Li; Y. Li; Z. M. Li; L. M. Lima; M. A. Lisa; F. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; X. Luo; G. L. Ma; Y. G. Ma; D. M. M. D. Madagodagettige Don; D. P. Mahapatra; R. Majka; S. Margetis; C. Markert; H. Masui; H. S. Matis; D. McDonald; T. S. McShane; N. G. Minaev; S. Mioduszewski; B. Mohanty; M. M. Mondal; D. A. Morozov; M. G. Munhoz; M. K. Mustafa; B. K. Nandi; Md. Nasim; T. K. Nayak; J. M. Nelson; L. V. Nogach; S. Y. Noh; J. Novak; S. B. Nurushev; G. Odyniec; A. Ogawa; K. Oh; A. Ohlson; V. Okorokov; E. W. Oldag; R. A. N. Oliveira; M. Pachr; B. S. Page; S. K. Pal; Y. X. Pan; Y. Pandit; Y. Panebratsev; T. Pawlak; B. Pawlik; H. Pei; C. Perkins; W. Peryt; P. Pile; M. Planinic; J. Pluta; D. Plyku; N. Poljak; J. Porter; A. M. Poskanzer; N. K. Pruthi; M. Przybycien; P. R. Pujahari; H. Qiu; A. Quintero; S. Ramachandran; R. Raniwala; S. Raniwala; R. L. Ray; C. K. Riley; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; J. F. Ross; A. Roy; L. Ruan; J. Rusnak; N. R. Sahoo; P. K. Sahu; I. Sakrejda; S. Salur; A. Sandacz; J. Sandweiss; E. Sangaline; A. Sarkar; J. Schambach; R. P. Scharenberg; A. M. Schmah; W. B. Schmidke; N. Schmitz; J. Seger; P. Seyboth; N. Shah; E. Shahaliev; P. V. Shanmuganathan; M. Shao; B. Sharma; W. Q. Shen; S. S. Shi; Q. Y. Shou; E. P. Sichtermann; R. N. Singaraju; M. J. Skoby; D. Smirnov; N. Smirnov; D. Solanki; P. Sorensen; U. G. deSouza; H. M. Spinka; B. Srivastava; T. D. S. Stanislaus; J. R. Stevens; R. Stock; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. Sumbera; X. Sun; X. M. Sun; Y. Sun; Z. Sun; B. Surrow; D. N. Svirida; T. J. M. Symons; A. Szanto de Toledo; J. Takahashi; A. H. Tang; Z. Tang; T. Tarnowsky; J. H. Thomas; A. R. Timmins; D. Tlusty; M. Tokarev; S. Trentalange; R. E. Tribble; P. Tribedy; B. A. Trzeciak; O. D. Tsai; J. Turnau; T. Ullrich; D. G. Underwood; G. Van Buren; G. van Nieuwenhuizen; J. A. Vanfossen, Jr.; R. Varma; G. M. S. Vasconcelos; A. N. Vasiliev; R. Vertesi; F. Videbk; Y. P. Viyogi; S. Vokal; A. Vossen; M. Wada; M. Walker; F. Wang; G. Wang; H. Wang; J. S. Wang; X. L. Wang; Y. Wang; Y. Wang; G. Webb; J. C. Webb; G. D. Westfall; H. Wieman; S. W. Wissink; R. Witt; Y. F. Wu; Z. Xiao; W. Xie; K. Xin; H. Xu; N. Xu; Q. H. Xu; Y. Xu; Z. Xu; W. Yan; C. Yang; Y. Yang; Y. Yang; Z. Ye; P. Yepes; L. Yi; K. Yip; I-K. Yoo; Y. Zawisza; H. Zbroszczyk; W. Zha; Zhang; J. B. Zhang; S. Zhang; X. P. Zhang; Y. Zhang; Z. P. Zhang; F. Zhao; J. Zhao; C. Zhong; X. Zhu; Y. H. Zhu; Y. Zoulkarneeva; M. Zyzak

    2014-09-12T23:59:59.000Z

    The $\\jpsi$ $\\pt$ spectrum and nuclear modification factor ($\\raa$) are reported for $\\pt < 5 \\ \\gevc$ and $|y|<1$ from 0\\% to 60\\% central Au+Au and Cu+Cu collisions at $\\snn = 200 \\ \\gev$ at STAR. A significant suppression of $\\pt$-integrated $\\jpsi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $\\raa$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $\\pt$. The data are compared to high-$\\pt$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $\\pt$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.

  6. Energy dependence of pi-zero production in Cu+Cu collisions at sqrt(s_NN) = 22.4, 62.4, and 200 GeV

    E-Print Network [OSTI]

    PHENIX Collaboration; A. Adare

    2008-01-29T23:59:59.000Z

    Neutral pion transverse momentum (pT) spectra at mid-rapidity (|y| zero yields in p+p collisions scaled by the number of inelastic nucleon-nucleon collisions (Ncoll) at the respective energies, the pi-zero yields for pT \\ge 2 GeV/c in central Cu+Cu collisions at 62.4 and 200 GeV are suppressed, whereas an enhancement is observed at 22.4 GeV. A comparison with a jet quenching model suggests that final state parton energy loss dominates in central Cu+Cu collisions at 62.4 GeV and 200 GeV, while the enhancement at 22.4 GeV is consistent with nuclear modifications in the initial state alone.

  7. Muon-spin spectroscopy of the organometallic spin-1/2 kagome-lattice compound Cu(1,3-benzenedicarboxylate)

    E-Print Network [OSTI]

    Marcipar, Lital

    Using muon-spin resonance, we examine the organometallic hybrid compound Cu(1,3-benzenedicarboxylate) [Cu(1,3-bdc)], which has structurally perfect spin-1/2 copper kagome planes separated by pure organic linkers. This ...

  8. Band offsets of n-type electron-selective contacts on cuprous oxide (Cu[subscript 2]O) for photovoltaics

    E-Print Network [OSTI]

    Brandt, Riley E.

    The development of cuprous oxide (Cu [subscript 2]O) photovoltaics (PVs) is limited by low device open-circuit voltages. A strong contributing factor to this underperformance is the conduction-band offset between Cu ...

  9. A MEDIEVAL WARM PERIOD l)13 C RECORD FROM THE GAURA CU MUSCA CAVE, SW ROMANIA

    E-Print Network [OSTI]

    Forray, Ferenc

    A MEDIEVAL WARM PERIOD l)13 C RECORD FROM THE GAURA CU MUSCA CAVE, SW ROMANIA Bogdan P. ONAC1 · 2, Romania (2) School of Geosciences, University of South Florida, 4202 E. Fowler Ave., NES 107, Tampa, FL and Romania. B. Geological map of the region {modified fromlancu et al., 1995). The mapof the Gaura cu Musca

  10. Effect of doping in Bi-Pb-Sr-Ca-Cu-O superconductor composites

    E-Print Network [OSTI]

    Ertekin, Abdullah

    2001-01-01T23:59:59.000Z

    The goal of this thesis is to analyze the solid solubility limit of dopants in Bi-Pb-Sr-Ca-Cu-O superconductors. We have studied the effect of Mn doping Bi-Pb-Sr-Ca-Cu-O. The electrical resistivity and critical temperature were measured for samples...

  11. Phase relations and precipitation in AlMgSi alloys with Cu additions

    E-Print Network [OSTI]

    Laughlin, David E.

    Conference in Aluminum Alloys 8, University of Cambridge, UK, July, 2002. * Corresponding author. Tel.: +1Phase relations and precipitation in AlMgSi alloys with Cu additions D.J. Chakrabartia , David E led to extensive studies on 6xxx alloys in recent years. These alloys often contain Cu in varying

  12. Adsorption of Benzene, Fluorobenzene and Meta-di-Fluorobenzene on Cu(110): A Computational Study

    E-Print Network [OSTI]

    Gao, Hongjun

    Adsorption of Benzene, Fluorobenzene and Meta-di-Fluorobenzene on Cu(110): A Computational Study L.interscience.wiley.com). Abstract: We modelled the adsorption of benzene, fluorobenzene and meta-di-fluorobenzene on Cu(110) by Den- sity Functional Theory. We found that the adsorption configuration depends on the coverage. At high

  13. Unexpected magnetization enhancement in hydrogen plasma treated ferromagnetic (Zn,Cu)O film

    SciTech Connect (OSTI)

    Hu, Liang; Zhu, Liping, E-mail: zlp1@zju.edu.cn, E-mail: hphe@zju.edu.cn; He, Haiping, E-mail: zlp1@zju.edu.cn, E-mail: hphe@zju.edu.cn; Ye, Zhizhen [State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China and Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027 (China)

    2014-08-18T23:59:59.000Z

    The effects of H{sup +} incorporation on oxygen vacancies (H{sub O}{sup +}) on the giant ferromagnetic behavior (moment up to 3.26??{sub B}/Cu) in ZnO:Cu polycrystalline films have been closely examined using different microstructural and magnetic characterization tools. Fine thermal stability (up to 450?C) and low resistivity demonstrate a significant correlation between Cu 3d-states and H{sub O}{sup +} donor defects in H plasma treated ZnO:Cu films, analogous to dual-donor (V{sub O} and Zn{sub i}) defects mediated case. These H{sub O}{sup +} donors can delocalize their electrons to the orbits of Cu atoms and contribute to a stronger spin-orbit coupling interaction. Suitable H{sub O}{sup +} defect concentration and matched proportion between Cu{sup 2+} and Cu{sup +} species ensure that orbital momentum shall not be quenched. Hence, unexpected moment enhancement, less than spin-orbit coupling upper limit (3.55??{sub B}/Cu), can be also expected in this scenario. The manipulation from spin-only to spin-orbit coupling mode, using a facile thermally-mediated H plasma exposure way, will allow achieving spin transport based diluted magnetic semiconductor device.

  14. Modeling non-isothermal intermetallic layer growth in the 63Sn-37Pb/Cu system

    SciTech Connect (OSTI)

    Vianco, P.T.; Hopkins, P.L.; Erickson, K.L.; Frear, D.R.; Davidson, R.

    1996-12-31T23:59:59.000Z

    A model describing diffusion-controlled growth of multiple intermetallic layers and the displacement of the interfaces between layers was developed and implemented in a 1-D computer code based on method-of-lines. The code was applied to analysis of intermetallic layer growth in isothermal solder aging experiments performed with 100 Sn/Cu and 63Sn-37Pb/Cu solder-substrate systems. Analyses indicated that intermetallic layer growth was consistent with a bulk diffusion mechanism involving Cu and/or Sn. In this work, nonisothermal solder-aging experiments were done with the 63Sn- 37Pb/Cu system using two temperature histories (4 cycles/day between 223-443 K, and 72 cycles/day between 223-443 K). Isothermal experiments were also done at 443 K. Thickness of Cu{sub 3}Sn and Cu{sub 6}Sn{sub 5} intermetallic layers were determined vs time for each temperature history. An updated version of the model and code were used to predict the intermetallic layer growth. Arrhenius expressions for diffusion coefficients in both Cu3Sn and Cu6Sn5 layers were determined. Agreement between prediction and experiment was generally good. In some cases, predicted layer growth was less than experiment, but within error. This paper describes the nonisothermal experiments and a comparison of predicted and observed layer growth vs time.

  15. DISSERTATION ANTICIPATED PERFORMANCE OF Cu(In,Ga)Se2 SOLAR CELLS IN THE

    E-Print Network [OSTI]

    Sites, James R.

    i DISSERTATION ANTICIPATED PERFORMANCE OF Cu(In,Ga)Se2 SOLAR CELLS IN THE THIN-FILM LIMIT Submitted ENTITLED `ANTICIPATED PERFORMANCE OF Cu(In,Ga)Se2 SOLAR CELLS IN THE THIN-FILM LIMIT' BE ACCEPTED(In,Ga)Se2 SOLAR CELLS IN THE THIN-FILM LIMIT The demand for alternative sources of energy is rapidly

  16. Insertion of Zn atoms into Cu3N lattice: Structural distortion and modification of electronic properties

    E-Print Network [OSTI]

    Zexian, Cao

    Cu and nitrogen. Consequently it can be used in the fabrication of microscopic copper lines are positioned at the middle of the edges and the nitrogen atoms are situated at the corners of a cube inserted to the cell centers in bulk Cu3N; on the other hand, the effect of copper [12], titanium [13

  17. Atomic Substitutions in Yba2cu3o7 - Modification of the Electronic-Structure

    E-Print Network [OSTI]

    RICHERT, BA; Allen, Roland E.

    1988-01-01T23:59:59.000Z

    of states for both spins is calculated from p.(E)-??Tr imG&(E),2 1988 The American Physical Society 37 ATOMIC SUBSTITUTIONS IN YBa2Cu307. MODIFICATION. . . TABLE I. "Atomic energies" in eV. culated from A1 Fe Ni Cu' Zn Y Tl Pb Bi 0 F ?10...

  18. Industrial Cu-Ni alloys for HTS coated conductor tape. A Girard1,2,3

    E-Print Network [OSTI]

    Boyer, Edmond

    Industrial Cu-Ni alloys for HTS coated conductor tape. A Girard1,2,3 , C E Bruzek4 , J L Jorda1 , L efficient substrates for coated conductor wires. The study is focused on two industrial compositions: Cu55Ni-textured substrate is one of the critical steps for the HTS coated conductor development. The RABiTS (Rolling

  19. Photoelectron imaging spectroscopy of Cu (H2O)1,2 anion complexes

    E-Print Network [OSTI]

    Lineberger, W. Carl

    structure calculations for the neutral, the adiabatic electron affinity is derived. 2004 Elsevier B.V. All rights reserved. 1. Introduction Recent experiments [1] and calculations [2,3] of the structure and rearrangement dynamics of CuH2O fol- lowing electron photodetachment from Cu H2O have afforded considerable

  20. Development of a Low Cost Insulated Foil Substrate for Cu(InGaSe)2 Photovoltaics

    SciTech Connect (OSTI)

    ERTEN ESER

    2012-01-22T23:59:59.000Z

    The project validated the use of stainless steel flexible substrate coated with silicone-based resin dielectric, developed by Dow Corning Corporation, for Cu(InGa)Se2 based photovoltaics. The projects driving force was the high performance of Cu(InGa)Se2 based photovoltaics coupled with potential cost reduction that could be achieved with dielectric coated SS web substrate.

  1. Low Temperature Transient Liquid Phase (LTTLP) Bonding for Au/Cu

    E-Print Network [OSTI]

    Eagar, Thomas W.

    of Technology, Cambridge, MA 02139 TheLow Temperature TransientLiquidPhase Diffusion Bonding (LTTLP) process has) ) M. M. Hou Low Temperature Transient Liquid Phase (LTTLP) Bonding for Au/Cu and Cu been bonded to copper heatsink.s at temperatures less than 160"C, using /n-Sn eutectic solders. After

  2. AuCu II, STRUCTURE MODULE IRRATIONNELLE, PROTOTYPE DES ANTIPHASES PRIODIQUES

    E-Print Network [OSTI]

    Boyer, Edmond

    de AuCu II la composition 50 at. % Au la structure Johansson et Linde exacte (demi-priode d Johansson-Linde structure is observed by electron diffraction from 50 at. % AuCu II bulk samples (antiphase diffraction des rayons X sur poudre par Johansson et Linde [1]. Ceci constituait la premiere structure

  3. Ab-initio study of donor-acceptor codoping for n-type CuO

    SciTech Connect (OSTI)

    Peng, Yuan; Wang, Junling, E-mail: jlwang@ntu.edu.sg [School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Singapore); Zheng, Jianwei [Institute of High Performance Computing, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632 (Singapore); Wu, Ping [Engineering Product Development, Singapore University of Technology and Design, 20 Dover Drive, Singapore 138682 (Singapore)

    2014-10-28T23:59:59.000Z

    Single n-type dopant in CuO has either a deep donor level or limited solubility, inefficient in generating free electrons. We have performed ab-initio study of the donor-acceptor codoping to obtain n-type CuO. Our results show that N codoping can slightly improve the donor level of Zr and In by forming shallower n-type complexes (Zr{sub Cu}-N{sub O} and 2In{sub Cu}-N{sub O}), but their formation energies are too high to be realized in experiments. However, Li codoping with Al and Ga is found to be relatively easy to achieve. 2Al{sub Cu}-Li{sub Cu} and 2Ga{sub Cu}-Li{sub Cu} have shallower donor levels than single Al and Ga by 0.14?eV and 0.08?eV, respectively, and their formation energies are reasonably low to act as efficient codopants. Moreover, Li codoping with both Al and Ga produce an empty impurity band just below the host conduction band minimum, which may reduce the donor ionization energy at high codoping concentrations.

  4. Size-dependent catalytic performance of CuO on ?-Al2O3...

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

    of NH3 on CuO?-Al2O3 catalysts during NH3 SCR reactions were investigated under oxygen-rich conditions. On 10% CuO?-Al2O3, NH3 reacted with oxygen to produce NOx. In...

  5. CU scientists amongst recipients of awards and grants bestowed by Neuron

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    CU scientists amongst recipients of awards and grants bestowed by Neuron Compiled 4.12.2013 23:35:59 by Document Globe 1 CU scientists amongst recipients of awards and grants bestowed by Neuron Foundation Neuron Award for Lifelong Achievement. During their presentation at Malostransk beseda on 5 November

  6. Chemisorption of benzene and STM dehydrogenation products on Cu,,100... N. Lorente*

    E-Print Network [OSTI]

    Persson, Mats

    Chemisorption of benzene and STM dehydrogenation products on Cu,,100... N. Lorente* Laboratoire of individual chemisorbed benzene molecules on Cu 100 has recently been performed in atomic manipulation experiments J. Phys. Chem. A. 104, 2463 2000 ; Surf. Sci 451, 219 2000 . Benzene dissociates under controlled

  7. Low-lying levels in Cu-57 and the rp process

    E-Print Network [OSTI]

    Zhou, XG; Dejbakhsh, H.; Gagliardi, Carl A.; Jiang, J.; Trache, L.; Tribble, Robert E.

    1996-01-01T23:59:59.000Z

    . In particular, a comparison of the low-lying levels of 57Cu with the well-determined excited states of its mirror nucleus 57Ni is important for studying the charge symmetry of the nucleus. The structure of 57Cu also plays a key role in the nucleo- synthesis...

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

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

    Adare, A.; Aidala, C.

    2014-11-01T23:59:59.000Z

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

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

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

    Adare, A. [Univ. of Colorado, Boulder, CO (United States); Aidala, C. [Columbia Univ., New York, NY (United States). et al.

    2014-11-01T23:59:59.000Z

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

  10. The Synthesis, Structure and Physical Properties of the Layered Ruthenocuprates RuSr2GdCu2O8 and Pb2Sr2Cu2RuO8Cl

    E-Print Network [OSTI]

    MacLaughlin, A C; Attfield, J. Paul

    2003-01-01T23:59:59.000Z

    Studies of the structure and physical properties of the layered rutheno- cuprates RuSr2GdCu2O8 and Pb2Sr2Cu2RuO8Cl are reviewed. RuSr2GdCu2O8 is a weak ferromagnetic superconductor and doping studies have shown that it is possible to tune...

  11. First results about hydrogen loading by means of pulsed electrolysis of Y$_{1}$Ba$_{2}$Cu$_{3}$O$_{7}$ pellets

    E-Print Network [OSTI]

    Celani, F; Di Gioacchino, D; Spallone, A; Tripodi, P; Pace, S; Polichetti, M; Marini, P

    1994-01-01T23:59:59.000Z

    First results about hydrogen loading by means of pulsed electrolysis of Y$_{1}$Ba$_{2}$Cu$_{3}$O$_{7}$ pellets

  12. Tunneling study of epitaxial YBa sub 2 Cu sub 3 O sub x superconducting films

    SciTech Connect (OSTI)

    Boguslavsky, Y.M.; Rudenko, E.M.; Mukhortov, V.M. (Inst. of Metal Physics, Ukrainian Academy of Sciences, 36 Vernadsky str. 252142, Kiev-142 (SU))

    1991-03-01T23:59:59.000Z

    This paper presents planar and edge-type tunnel junctions YBa{sub 2}Cu{sub 3}O{sub x}-metal (Pb,Pt,In) based on epitaxial Y-Ba-Cu-O films. Features of conductance characteristics of these junctions, mainly conductance zero bias anomalies, have been considered. We have observed the difference between the R{sub d}(V) dependences for two types of the contacts at low bias voltages V {approx lt}5 mV. This difference probably linked with an anisotropy of the states density N ({epsilon}) in near-contact region of YBa{sub 2}Cu{sub 3}O{sub x}. Existence of the correlation in the temperature dependences of the states density of YBa{sub 2}Cu{sub 3}O{sub x} along the Cu-O planes and perpendicularly to them have been observed.

  13. Optical and phonon properties of ZnO:CuO mixed nanocomposite

    SciTech Connect (OSTI)

    Udayabhaskar, R.; Karthikeyan, B., E-mail: bkarthik@nitt.edu [Department of Physics, National Institute of Technology, Tiruchirappalli 620 015 (India)

    2014-04-21T23:59:59.000Z

    Optical and phonon properties of ZnO:CuO nanocrystals which are prepared through sol-gel method are reported here. From X-ray diffraction studies, observed that Cu doping replaces the Zn and also forms secondary phase. Optical absorption spectral studies shows that the exciton and plasmon related bands of ZnO and CuO phase, respectively. Fluorescence studies of the prepared samples shows that green emission from ZnO is completely depleted and the same is attributed to CuO Plasmon. Raman spectral studies reveal that secondary phase (impurity) induced profile changes in 1LO and E{sub 2High} modes. Asymmetry in peak shape is analyzed using Fano profile with the combination of Lorentzian profile. Moreover, the monotonic increase of Fano factor and full width at half maxima is hopefully attributed to the continuum arises by the plasmons of Cu-O phase in ZnO nanosystem.

  14. Magnetic order tuned by Cu substitution in Fe1.1zCuzTe

    SciTech Connect (OSTI)

    Wen, Jinsheng; Xu, Zhijun; Xu, Guangyong; Lumsden, M. D.; Valdivia, P. N.; Bourret-Courchesne, E.; Gu, Genda; Lee, Dung-Hai; Tranquada, J. M.; Birgeneau, R. J.

    2012-07-01T23:59:59.000Z

    We study the effects of Cu substitution in Fe?.?Te, the nonsuperconducting parent compound of the iron-based superconductor, Fe??yTe??xSex, utilizing neutron scattering techniques. It is found that the structural and magnetic transitions, which occur at ~60 K without Cu, are monotonically depressed with increasing Cu content. By 10% Cu for Fe, the structural transition is hardly detectable, and the system becomes a spin glass below 22 K, with a slightly incommensurate ordering wave vector of (0.5?, 0, 0.5) with ? being the incommensurability of 0.02, and correlation length of 12 along the a axis and 9 along the c axis. With 4% Cu, both transition temperatures are at 41 K, though short-range incommensurate order at (0.42, 0, 0.5) is present at 60 K. With further cooling, the incommensurability decreases linearly with temperature down to 37 K, below which there is a first-order transition to a long-range almost-commensurate antiferromagnetic structure. A spin anisotropy gap of 4.5 meV is also observed in this compound. Our results show that the weakly magnetic Cu has a large effect on the magnetic correlations; it is suggested that this is caused by the frustration of the exchange interactions between the coupled Fe spins.

  15. Directed and elliptic flow of charged particles in Cu+Cu collisions at $\\sqrt{\\bm {s_{NN}}} =$ 22.4 GeV

    E-Print Network [OSTI]

    G. Agakishiev; M. M. Aggarwal; Z. Ahammed; A. V. Alakhverdyants; I. Alekseev; J. Alford; B. D. Anderson; C. D. Anson; D. Arkhipkin; G. S. Averichev; J. Balewski; D. R. Beavis; N. K. Behera; R. Bellwied; M. J. Betancourt; R. R. Betts; A. Bhasin; A. K. Bhati; H. Bichsel; J. Bielcik; J. Bielcikova; L. C. Bland; I. G. Bordyuzhin; W. Borowski; J. Bouchet; E. Braidot; A. V. Brandin; A. Bridgeman; S. G. Brovko; E. Bruna; S. Bueltmann; I. Bunzarov; T. P. Burton; X. Z. Cai; H. Caines; M. Caldern de la Barca Snchez; D. Cebra; R. Cendejas; M. C. Cervantes; P. Chaloupka; S. Chattopadhyay; H. F. Chen; J. H. Chen; J. Y. Chen; L. Chen; J. Cheng; M. Cherney; A. Chikanian; K. E. Choi; W. Christie; P. Chung; M. J. M. Codrington; R. Corliss; J. G. Cramer; H. J. Crawford; Cui; A. Davila Leyva; L. C. De Silva; R. R. Debbe; T. G. Dedovich; J. Deng; A. A. Derevschikov; R. Derradi de Souza; L. Didenko; P. Djawotho; S. M. Dogra; X. Dong; J. L. Drachenberg; J. E. Draper; C. M. Du; J. C. Dunlop; L. G. Efimov; M. Elnimr; J. Engelage; G. Eppley; M. Estienne; L. Eun; O. Evdokimov; R. Fatemi; J. Fedorisin; R. G. Fersch; P. Filip; E. Finch; V. Fine; Y. Fisyak; C. A. Gagliardi; D. R. Gangadharan; F. Geurts; P. Ghosh; Y. N. Gorbunov; A. Gordon; O. G. Grebenyuk; D. Grosnick; A. Gupta; S. Gupta; W. Guryn; B. Haag; O. Hajkova; A. Hamed; L-X. Han; J. W. Harris; J. P. Hays-Wehle; M. Heinz; S. Heppelmann; A. Hirsch; E. Hjort; G. W. Hoffmann; D. J. Hofman; B. Huang; H. Z. Huang; T. J. Humanic; L. Huo; G. Igo; P. Jacobs; W. W. Jacobs; C. Jena; F. Jin; J. Joseph; E. G. Judd; S. Kabana; K. Kang; J. Kapitan; K. Kauder; H. W. Ke; D. Keane; A. Kechechyan; D. Kettler; D. P. Kikola; J. Kiryluk; A. Kisiel; V. Kizka; S. R. Klein; A. G. Knospe; D. D. Koetke; T. Kollegger; J. Konzer; I. Koralt; L. Koroleva; W. Korsch; L. Kotchenda; V. Kouchpil; P. Kravtsov; K. Krueger; M. Krus; L. Kumar; M. A. C. Lamont; J. M. Landgraf; S. LaPointe; J. Lauret; A. Lebedev; R. Lednicky; J. H. Lee; W. Leight; M. J. LeVine; C. Li; L. Li; N. Li; W. Li; X. Li; X. Li; Y. Li; Z. M. Li; 1 L. M. Lima; M. A. Lisa; F. Liu; H. Liu; J. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; Y. Lu; E. V. Lukashov; X. Luo; G. L. Ma; Y. G. Ma; D. P. Mahapatra; R. Majka; O. I. Mall; R. Manweiler; S. Margetis; C. Markert; H. Masui; H. S. Matis; D. McDonald; T. S. McShane; A. Meschanin; R. Milner; N. G. Minaev; S. Mioduszewski; M. K. Mitrovski; Y. Mohammed; B. Mohanty; M. M. Mondal; B. Morozov; D. A. Morozov; M. G. Munhoz; M. K. Mustafa; M. Naglis; B. K. Nandi; T. K. Nayak; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; K. Oh; A. Ohlson; V. Okorokov; E. W. Oldag; R. A. N. Oliveira; D. Olson; M. Pachr; B. S. Page; S. K. Pal; Y. Pandit; Y. Panebratsev; T. Pawlak; H. Pei; T. Peitzmann; C. Perkins; W. Peryt; P. Pile; M. Planinic; M. A. Ploskon; J. Pluta; D. Plyku; N. Poljak; J. Porter; A. M. Poskanzer; B. V. K. S. Potukuchi; C. B. Powell; D. Prindle; C. Pruneau; N. K. Pruthi; P. R. Pujahari; J. Putschke; H. Qiu; R. Raniwala; S. Raniwala; R. L. Ray; R. Redwine; R. Reed; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; L. Ruan; J. Rusnak; N. R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; E. Sangaline; A. Sarkar; J. Schambach; R. P. Scharenberg; J. Schaub; A. M. Schmah; N. Schmitz; T. R. Schuster; J. Seele; J. Seger; I. Selyuzhenkov; P. Seyboth; N. Shah; E. Shahaliev; M. Shao; M. Sharma; S. S. Shi; Q. Y. Shou; E. P. Sichtermann; F. Simon; R. N. Singaraju; M. J. Skoby; N. Smirnov; D. Solanki; P. Sorensen; U. G. deSouza; H. M. Spinka; B. Srivastava; T. D. S. Stanislaus; S. G. Steadman; J. R. Stevens; R. Stock; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. C. Suarez; N. L. Subba; M. Sumbera; X. M. Sun; Y. Sun; Z. Sun; B. Surrow; D. N. Svirida; T. J. M. Symons; A. Szanto de Toledo; J. Takahashi; A. H. Tang; Z. Tang; L. H. Tarini; T. Tarnowsky; D. Thein; J. H. Thomas; J. Tian; A. R. Timmins; D. Tlusty; M. Tokarev; S. Trentalange; R. E. Tribble; P. Tribedy; B. A. Trzeciak; O. D. Tsai; T. Ullrich; D. G. Underwood; G. Van Buren; G. van Nieuwenhuizen; J. A. Vanfossen, Jr.; R. Varma; G. M. S. Vasconcelos; A. N. Vasiliev; F. Videbk; Y. P. Viyogi; S. Vokal; S. A. Voloshin; M. Wada; M. Walker; F. Wang; G. Wang; H. Wang; J. S. Wang; Q. Wang; X. L. Wang; Y. Wang; G. Webb; J. C. Webb; G. D. Westfall; C. Whitten Jr.; H. Wieman; S. W. Wissink; R. Witt; W. Witzke; Y. F. Wu; Z. Xiao; W. Xie; H. Xu; N. Xu; Q. H. Xu; W. Xu; Y. Xu; Z. Xu; L. Xue; Y. Yang; Y. Yang; P. Yepes; K. Yip; I-K. Yoo; M. Zawisza; H. Zbroszczyk; W. Zhan; J. B. Zhang; S. Zhang; W. M. Zhang; X. P. Zhang; Y. Zhang; Z. P. Zhang; F. Zhao; J. Zhao; C. Zhong; X. Zhu; Y. H. Zhu; Y. Zoulkarneeva

    2011-12-07T23:59:59.000Z

    This paper reports results for directed flow $v_{1}$ and elliptic flow $v_{2}$ of charged particles in Cu+Cu collisions at $\\sqrt{s_{NN}}=$ 22.4 GeV at the Relativistic Heavy Ion Collider. The measurements are for the 0-60% most central collisions, using charged particles observed in the STAR detector. Our measurements extend to 22.4 GeV Cu+Cu collisions the prior observation that $v_1$ is independent of the system size at 62.4 and 200 GeV, and also extend the scaling of $v_1$ with $\\eta/y_{\\rm beam}$ to this system. The measured $v_2(p_T)$ in Cu+Cu collisions is similar for $\\sqrt{s_{NN}} = 22.4-200$ GeV. We also report a comparison with results from transport model (UrQMD and AMPT) calculations. The model results do not agree quantitatively with the measured $v_1(\\eta), v_2(p_T)$ and $v_2(\\eta)$.

  16. High-strength high-conductivity Cu-Nb microcomposite sheet fabricated via multiple roll bonding

    SciTech Connect (OSTI)

    Jha, S.C.; Delagi, R.G.; Forster, J.A. (Texas Instruments Materials and Control Group, Attleboro, MA (United States)); Krotz, P.D. (Rockwell International Corp., Huntsville, AL (United States))

    1993-01-01T23:59:59.000Z

    Copper-niobium microcomposites are a new class of high-strength high-conductivity materials that have attractive properties for room- and elevated-temperature applications. Since Nb has little solid solubility in Cu, addition of Nb to Cu does not affect its conductivity. Copper-niobium microcomposites are melted and cast so that the microstructure of cast Cu-Nb ingots consists of 1- to 10 [mu]m Nb dendrites uniformly distributed within the copper matrix. Extensive wire drawing with a true processing strain ([eta][gt] 12) of Cu-Nb alloy leads to refinement and elongation of Nb dendrites into 1- to 10 nm-thick filaments. The presence of such fine Nb filaments causes a significant increase in the strength of Cu-Nb wires. The tensile strength of heavily drawn Cu-Nb wires was determined to be significantly higher than the values predicted by the rule of mixtures. This article reports the fabrication of high-strength Cu-Nb microcomposite sheet by multiple roll bonding. It is difficult and impractical to attain high processing strains ([eta][gt]3) by simple cold rolling. In most practical cold-rolling operation, the thickness reduction does not exceed 90 pct ([eta] [approx equal]2). Therefore, innovative processing is required to generate high strength in Cu-Nb microcomposite sheet. Multiple roll bonding of Cu-Nb has been utilized to store high processing strain ( [eta][gt]10) in the material and refine the Nb particle size within the copper matrix. This article describes the microstructure, mechanical properties, and thermal stability of roll-bonded Cu-Nb microcomposite sheet.

  17. Adsorption and Reaction of NO on Cu(100): An Infrared Reflection Absorption Spectroscopic Study at 25 K

    E-Print Network [OSTI]

    Goodman, Wayne

    Adsorption and Reaction of NO on Cu(100): An Infrared Reflection Absorption Spectroscopic Study oxide (NO) on a Cu(100) surface at 25 K has been studied using infrared reflection absorption to the Cu(100) surface. Heating to 55 K leads to reorientation of the dimer molecules in the multilayer

  18. Influence of nanoscale Cu precipitates in -Fe on dislocation core structure and strengthening Zhengzheng Chen and Nicholas Kioussis

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    and the bowing out of the dislocation line. The calculated bow-out angle and resolved shear stress required at low temperatures, Cu-rich precipitates can easily nucleate and grow under thermal aging. Although Cu- tion of small Cu-rich precipitate diameter d 4 nm from the bcc to the 9R phase in a thermally aged

  19. Effect of Y-211 particle size on the growth of single grain YBaCuO bulk superconductors

    E-Print Network [OSTI]

    Thoma, Max; Shi, Yunhua; Dennis, Tony; Durrell, John; Cardwell, David

    2014-12-01T23:59:59.000Z

    The engineering of fine Y2Ba1Cu1O5 (Y-211) inclusions of average particle size 1?2 ?m within the continuous, superconducting YBa2Cu3O7?? (Y-123) phase matrix of single-grain, bulk high temperature YBaCuO (YBCO) superconductors is fundamental...

  20. Identified high-pT spectra in Cu+Cu collisions at sqrt sNN=200 GeV

    SciTech Connect (OSTI)

    STAR Collaboration; Abelev, Betty

    2010-07-05T23:59:59.000Z

    We report new results on identified (anti)proton and charged pion spectra at large transverse momenta (3 < p{sub T} < 10 GeV/c) from Cu+Cu collisions at {radical}s{sub NN} = 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider (RHIC). This study explores the system size dependence of two novel features observed at RHIC with heavy ions: the hadron suppression at high-p{sub T} and the anomalous baryon to meson enhancement at intermediate transverse momenta. Both phenomena could be attributed to the creation of a new form of QCD matter. The results presented here bridge the system size gap between the available pp and Au+Au data, and allow the detailed exploration for the on-set of the novel features. Comparative analysis of all available 200 GeV data indicates that the system size is a major factor determining both the magnitude of the hadron spectra suppression at large transverse momenta and the relative baryon to meson enhancement.

  1. Characterization and device performance of (AgCu)(InGa)Se2 absorber layers

    SciTech Connect (OSTI)

    Hanket, Gregory; Boyle, Jonathan H.; Shafarman, William N.

    2009-06-08T23:59:59.000Z

    The study of (AgCu)(InGa)Se2 absorber layers is of interest in that Ag-chalcopyrites exhibit both wider bandgaps and lower melting points than their Cu counterparts. (AgCu)(InGa)Se2 absorber layers were deposited over the composition range 0 < Ag/(Ag+Cu) < 1 and 0.3 < Ga/(In+Ga) < 1.0 using a variety of elemental co-evaporation processes. Films were found to be singlephase over the entire composition range, in contrast to prior studies. Devices with Ga content 0.3 < Ga/(In+Ga) <0.5 tolerated Ag incorporation up to Ag/(Ag+Cu) = 0.5 without appreciable performance loss. Ag-containing films with Ga/(In+Ga) = 0.8 showed improved device characteristics over Cu-only control samples, in particular a 30-40% increase in short-circuit current. An absorber layer with composition Ag/(Ag+Cu) = 0.75 and Ga/(In+Ga) = 0.8 yielded a device with VOC = 890 mV, JSC = 20.5mA/cm2, fill factor = 71.3%, and ? = 13.0%.

  2. [Purification of Cu-67 and Macrocyclic chelates for targeted therapy]. DOE annual report, 1993--94

    SciTech Connect (OSTI)

    DeNardo, S.J.

    1994-12-31T23:59:59.000Z

    {sup 67}Cu produced at the Brookhaven Linac Isotope Producer (BLIP) is purified from zinc target material and coproduced radioisotopes of cobalt, chromium, nickel, and gallium by a multi-step extraction process. This procedure introduces applicable amounts of cold copper into the sample, lowering the specific activity of the {sup 67}Cu. Because of this, the {sup 67}Cu produced at BLIP is not of high enough activity for use in radioimmunotherapy procedures. It is their goal to develop a procedure with which to purify {sup 67}Cu from the other radioisotopes produced, while at the same time minimize the amount of cold copper introduced into the system. There are two different approaches that they devised for the purification of {sup 67}Cu. They are an extraction method similar to what is used at Brookhaven already, and a copper affinity column. Bifunctional macrocyclic chelates have been developed to conjugate metals to antibodies, and metal chelated antibodies have been shown to have slower clearance from the tumor than iodinated antibodies. This provides a mechanism for increasing tumor radiation dose and the therapeutic index. Conditions for {sup 67}Cu radiolabeling of TETA immunoconjugates have been optimized, leading to rapid, quantitative complexation of metal binding sites, further contributing to high radioactive yield and to the routine production of {sup 67}Cu radiolabed immunoconjugates of therapeutic quality.

  3. Quantitative texture analysis of free-standing electrodeposited Cu- and Ni-line patterns

    SciTech Connect (OSTI)

    Pantleon, Karen [Department of Manufacturing Engineering and Management, Technical University of Denmark, Kemitorvet Building 204, DK-2800 Kgs. Lyngby (Denmark)]. E-mail: pantleon@ipl.dtu.dk; Somers, Marcel A.J. [Department of Manufacturing Engineering and Management, Technical University of Denmark, Kemitorvet Building 204, DK-2800 Kgs. Lyngby (Denmark)

    2004-09-20T23:59:59.000Z

    Free-standing line patterns of Cu and Ni were manufactured by applying photo-lithography and subsequent electrodeposition on glass wafers covered with either a polycrystalline Au-layer or an X-ray amorphous Ni-P layer. Several pattern geometries varying in line width, line separation and line length were studied by X-ray diffraction. Quantitative texture analysis revealed that crystallographic texture depends on the type of substrate-layer: while substrate unbiased growth was observed for Cu-lines on amorphous Ni-P, the highly-textured and fine-grained Au-layer strongly favored nucleation of Cu-crystallites of a preferred orientation. For particular pattern geometries, experimental evidence for an epitaxial orientation relation between Cu and Au was found and discussed with respect to various concepts of epitaxial growth. While crystallographic texture of Ni-electrodeposits was independent on the pattern geometry, for Cu-electrodeposits a pronounced pattern dependence of both type and strength of crystallographic texture as well as differences between Cu-lines and non-patterned Cu-films were observed.

  4. Thermal chemistry of the Cu-KI5 atomic layer deposition precursor on a copper surface

    SciTech Connect (OSTI)

    Ma, Qiang; Zaera, Francisco, E-mail: zaera@ucr.edu [Department of Chemistry, University of California, Riverside, California 92521 (United States)

    2015-01-01T23:59:59.000Z

    The thermal chemistry of a Cu(I) ketoiminate complex, Cu-KI5, resulting from the modification of the known Air Products CupraSelect{sup } copper CVD precursor Cu(hfac)(tmvs) designed to tether the two ligands via an isopropoxide linker, was studied under ultrahigh vacuum on a Cu(110) single-crystal surface by using a combination of temperature programmed desorption (TPD) and x-ray photoelectron spectroscopy. Adsorption at low temperatures was determined to take place via the displacement of the vinyl ligand by the surface. Molecular desorption was seen at 210?K, and the evolution of Cu(II)-KI5{sub 2} was established to take place at 280?K, presumably from a disproportionation reaction that also leads to the deposition of Cu(0). Other sets of desorption products were seen at 150, 250, and 430?K, all containing copper atoms and small organic moieties with molecular masses below 100 amu. The latter TPD peak in particular indicates significant fragmentation of the ligands, likely at the CN bond that holds the vinylsilane-isopropoxide moiety tethered to the ketoimine fragment, and possibly also at the union between the vinylsilane and the alkoxide linker. The 430?K temperature measured for this chemistry may set an upper limit for clean Cu film deposition, but since reactivity on the surface was also found to be inhibited at higher surface coverages, it may be delayed to higher temperatures under atomic layer deposition conditions.

  5. Effect of prior cold work on age hardening of Cu-3Ti-1Cr alloy

    SciTech Connect (OSTI)

    Markandeya, R. [Department of Metallurgical Engineering, College of Engineering, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad-500 072 (India); Nagarjuna, S. [Defence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad-500 058 (India)]. E-mail: snagarjuna1@rediffmail.com; Sarma, D.S. [Department of Metallurgical Engineering, Institute of Technology, Banaras Hindu University, Varanasi-221 005 (India)

    2006-12-15T23:59:59.000Z

    The influence of 50%, 75% and 90% cold work on the age hardening behavior of Cu-3Ti-1Cr alloy has been investigated by hardness and tensile tests, and light optical and transmission electron microscopy. Hardness increased from 118 Hv in the solution-treated condition to 373 Hv after 90% cold work and peak aging. Cold deformation reduced the peak aging time and temperature of the alloy. The yield strength and ultimate tensile strength reached a maximum of 1090 and 1110 MPa, respectively, following 90% deformation and peak aging. The microstructure of the deformed alloy exhibited elongated grains and deformation twins. The maximum strength on peak aging was obtained due to precipitation of the ordered, metastable and coherent {beta}'-Cu{sub 4}Ti phase, in addition to high dislocation density and deformation twins. Over-aging resulted in decreases in hardness and strength due to the formation of incoherent and equilibrium {beta}-Cu{sub 3}Ti phase in the form of a cellular structure. However, the morphology of the discontinuous precipitation changed to a globular form on high deformation. The mechanical properties of Cu-3Ti-1Cr alloy are superior to those of Cu-2.7Ti, Cu-3Ti-1Cd and the commercial Cu-0.5Be-2.5Co alloys in the cold-worked and peak-aged condition.

  6. Local structure of Cu{sub x}Zn{sub 2?x}TiO{sub 4} inverse spinel

    SciTech Connect (OSTI)

    Ruiz-Fuertes, J., E-mail: ruiz-fuertes@kristall.uni-frankfurt.de; Bernert, T.; He, M.; Winkler, B. [Geowissenschaften, Goethe-Universitt, Altenhferallee 1, 60438 Frankfurt am Main (Germany); Vinograd, V. L. [Forschungszentrum Jlich GmbH, 52425 Jlich (Germany); Milman, V. [Dassault Systmes BIOVIA, 334 Science Park, Cambridge CB4 0WN (United Kingdom)

    2014-08-18T23:59:59.000Z

    Structural and vibrational changes due to the incorporation of Cu in the Cu{sub x}Zn{sub 2?x}TiO{sub 4} inverse spinel solid solution have been investigated by X-ray diffraction, Raman spectroscopy, and ab initio calculations. Both X-ray diffraction and Raman spectroscopy show that the structure remains cubic while the unit-cell volume decreases on Cu{sup 2+} incorporation. The compositional dependencies of the Raman frequencies and linewidths indicate the incorporation of Cu{sup 2+} into tetrahedral sites. The A{sub 1g} tetrahedral mode frequency becomes independent on composition for x?>?0.6. This is attributed to the limited incorporation of Cu{sup 2+} in the tetrahedral sites at Cu-rich compositions. Ab initio calculations with quasi-random structures reveal only a slight energetic preference of Cu{sup 2+} for octahedral over tetrahedral sites.

  7. PHYSICAL REVIEW B 88, 045427 (2013) Stability and electronic structure of Cu2ZnSnS4 surfaces: First-principles study

    E-Print Network [OSTI]

    Gong, Xingao

    2013-01-01T23:59:59.000Z

    the atomic and electronic structure of Cu2ZnSnS4 (CZTS) surfaces, although the efficiency of kesterite). In stoichiometric single-phase CZTS samples, Cu-enriched defects are favored on (112) surfaces and Cu on the surfaces of the synthesized CZTS thin films. The electronic structure analysis shows that Cu

  8. Phase relationships in the BaO-Y?O?-Cu-O system

    E-Print Network [OSTI]

    Hegg, Turi

    1989-01-01T23:59:59.000Z

    Os ? CuO showing the solid solution region for "the other perovskite" after Roth et al. 107 59. I'he BaO ? YsOs ? Cu ? 0 base plane of the polyhedra The quaternary BaO ? YsOs ? Cu ? 0 system with the suggested primary phase fields . 61. Pseudo... become insulating svhen z::. 7. 1, this means that the 213 compound goes from an insulating to a semiconducting to a superconducting to an insulating state as oxygen is added. The 213 compound has an oxygen-deficient perovskite structure . Its unit...

  9. Investigations of CuInSe sub 2 thin films and contacts

    SciTech Connect (OSTI)

    Nicolet, M.A. (California Inst. of Tech., Pasadena, CA (United States))

    1991-10-01T23:59:59.000Z

    This report describes research into electrical contacts for copper indium diselenide (CuInSe{sub 2}) polycrystalline thin films used for solar cell applications. Molybdenum contacts have historically been the most promising for heterojunction solar cells. This program studied contact stability by investigating thermally induced bilayer reactions between molybdenum and copper, indium, and selenium. Because selenization is widely used to fabricate CuInSe{sub 2} thin films for photovoltaic cells, a second part of the program investigated how the morphologies, phases, and reactions of pre-selenization Cu-In structures are affected by the deposition process and heat treatments. 7 refs., 6 figs.

  10. Phosphorescence quenching by mechanical stimulus in CaZnOS:Cu

    SciTech Connect (OSTI)

    Tu, Dong; Kamimura, Sunao [National Institute of Advanced Industrial Science and Technology (AIST), Saga 841-0052 (Japan); Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580 (Japan); Xu, Chao-Nan, E-mail: cn-xu@aist.go.jp [National Institute of Advanced Industrial Science and Technology (AIST), Saga 841-0052 (Japan); Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580 (Japan); International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Fukuoka 819-0395 (Japan); Fujio, Yuki; Sakata, Yoshitaro [National Institute of Advanced Industrial Science and Technology (AIST), Saga 841-0052 (Japan); Ueno, Naohiro [National Institute of Advanced Industrial Science and Technology (AIST), Saga 841-0052 (Japan); Graduate School of Science and Engineering, Saga University, Saga 840-8502 (Japan)

    2014-07-07T23:59:59.000Z

    We have found that phosphorescence intensity of CaZnOS:Cu decreased visibly under an applied load. This mechanical quenching (MQ) of phosphorescence in CaZnOS:Cu corresponded to the mechanical stimuli. We have thus demonstrated that the MQ of CaZnOS:Cu could be used for visualizing stress distributions in practical applications. We propose that MQ arises from non-radiative recombination due to electron-transfer from trap levels to non-radiative centers as a result of the mechanical load.

  11. Fuel Cell Power Systems Analysis Patrick DavisPatrick Davis

    E-Print Network [OSTI]

    Power Systems Balance-of-plant (compressors, humidifiers, heat exchangers, sensors, controls) Cost

  12. Crystal structure and magnetic properties of NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl

    SciTech Connect (OSTI)

    Jin Tengteng [Key Laboratory of Transparent Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Rd. 1295, Shanghai 200050 (China); Liu Wei [Institute of Science and Engineering of Materials, Ocean University of China, Qingdao (China); Chen Shuang; Prots, Yurii; Schnelle, Walter [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany); Zhao Jingtai [Key Laboratory of Transparent Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Rd. 1295, Shanghai 200050 (China); Kniep, Ruediger [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany); Hoffmann, Stefan, E-mail: stefan.hoffmann@cpfs.mpg.de [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany)

    2012-08-15T23:59:59.000Z

    A new copper(II) oxide phosphate chloride, NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl], has been synthesized by flux synthesis. Single-crystal X-ray diffraction data show that the title compound crystallizes in the monoclinic system, space group P2{sub 1}/c (No. 14), with lattice parameters a=8.392(2) A, b=6.3960(10) A, c=16.670(2) A, {beta}=109.470(10) Degree-Sign , V=843.6(3) A{sup 3}, Z=4. The crystal structure is characterized by a complex chain of copper-centered polyhedra running along [0 1 0] which are connected by phosphate tetrahedra. The resulting three-dimensional polyhedra framework exhibits channels filled by additional copper and sodium atoms. Field and temperature dependent measurements of the specific heat and the magnetic susceptibility reveal low-dimensional magnetic behavior. The compound starts to decompose at 700 K under release of oxygen and evaporation of Cu{sup I}Cl as shown by simultaneous thermogravimetry and mass spectrometry. - Graphical abstract: The crystal structure of the new copper(II) phosphate chloride, NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl], exhibits linear chains of copper tetrahedra which show low-dimensional magnetic behavior proven by specific heat and magnetic susceptibility measurements. Highlights: Black-Right-Pointing-Pointer A new copper(II) oxide phosphate chloride, NaCu{sup II}[(Cu{sup II}{sub 3}O)(PO{sub 4}){sub 2}Cl], has been synthesized by flux synthesis. Black-Right-Pointing-Pointer The crystal structure comprises chains of Cu{sub 4}O tetrahedra. Black-Right-Pointing-Pointer Low-dimensional behavior has been proven by magnetic and specific heat measurements. Black-Right-Pointing-Pointer On heating, Cu{sup I}Cl and oxygen are released shown by simultaneous thermogravimetry and mass spectrometry.

  13. A Theoretical Study of Methanol Synthesis from CO(2) Hydrogenation on Metal-doped Cu(111) Surfaces

    SciTech Connect (OSTI)

    Liu P.; Yang, Y.; White, M.G.

    2012-01-12T23:59:59.000Z

    Density functional theory (DFT) calculations and Kinetic Monte Carlo (KMC) simulations were employed to investigate the methanol synthesis reaction from CO{sub 2} hydrogenation (CO{sub 2} + 3H{sub 2} {yields} CH{sub 3}OH + H{sub 2}O) on metal-doped Cu(111) surfaces. Both the formate pathway and the reverse water-gas shift (RWGS) reaction followed by a CO hydrogenation pathway (RWGS + CO-Hydro) were considered in the study. Our calculations showed that the overall methanol yield increased in the sequence: Au/Cu(111) < Cu(111) < Pd/Cu(111) < Rh/Cu(111) < Pt/Cu(111) < Ni/Cu(111). On Au/Cu(111) and Cu(111), the formate pathway dominates the methanol production. Doping Au does not help the methanol synthesis on Cu(111). Pd, Rh, Pt, and Ni are able to promote the methanol production on Cu(111), where the conversion via the RWGS + CO-Hydro pathway is much faster than that via the formate pathway. Further kinetic analysis revealed that the methanol yield on Cu(111) was controlled by three factors: the dioxomethylene hydrogenation barrier, the CO binding energy, and the CO hydrogenation barrier. Accordingly, two possible descriptors are identified which can be used to describe the catalytic activity of Cu-based catalysts toward methanol synthesis. One is the activation barrier of dioxomethylene hydrogenation, and the other is the CO binding energy. An ideal Cu-based catalyst for the methanol synthesis via CO{sub 2} hydrogenation should be able to hydrogenate dioxomethylene easily and bond CO moderately, being strong enough to favor the desired CO hydrogenation rather than CO desorption but weak enough to prevent CO poisoning. In this way, the methanol production via both the formate and the RWGS + CO-Hydro pathways can be facilitated.

  14. The UC Davis Policy Institute for Energy, Environment and the Economy is part of a bold new campus-wide initiative to dramatically increase the value of UC research to the policy-making process by identifying priority policy information needs,

    E-Print Network [OSTI]

    California at Davis, University of

    The UC Davis Policy Institute for Energy, Environment and the Economy is part of a bold new campus-wide initiative to dramatically increase the value of UC research to the policy-making process by identifying priority policy information needs, facilitating diverse collaborations, and translating science into policy

  15. Davis Bike Loop BIKING TOUR

    E-Print Network [OSTI]

    Schladow, S. Geoffrey

    Certified Platinum LEEDTM Certified Gold LEEDTM Registered Composting Recycling Multi-Bin Zero Waste Capable at the Coffee House helps campus work towards a zero waste goal. Growing organically. In 1977, students created-scratch cooking, and uses ingredients from the Student Farm or local producers. Recycling and composting

  16. James M. Davis Public Liaison

    E-Print Network [OSTI]

    Warfare Tech Library Ridgecrest Public Library Walter Stiern Memorial Library Electronic Access to AFC, interested agencies, intervenors Notice by List Server Electronic distribution by email to those who signed up on the electronic list #12;Outreach--Other Executive Director Correspondence: Elected Officials

  17. Davis-gary Hall - 2

    E-Print Network [OSTI]

    Photographer, if not known, put Unknown

    2009-01-01T23:59:59.000Z

    , Michael Edwards Lisako E. McKyer Head of Department, Gary Ellis May 2012 Major Subject: Recreation, Park and Tourism Sciences iii ABSTRACT Youth, Art, and Life on the Border: An Examination of Coping and Support among Participants in a... in their development. One such resource is the opportunity to engage with non-parental caring adults, who provide youth a chance to build a supportive social network (Scales, Benson, Leffert, & Blyth, 2000). OST programs are also beneficial to youth because...

  18. DAVI America | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformationNew|CoreCpWingCushing,DA (Distribution Automation)

  19. Ohio Nuclear Profile - Davis Besse

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5 Tables July 1996 Energy Information Administration Office ofthroughYear Jan Feb Mar Apr May Jun Jul9 20102009VentedMonth

  20. Electronic properties and morphology of Cu-phthalocyanineC{sub 60} composite mixtures

    SciTech Connect (OSTI)

    Roth, Friedrich [Center for Free-Electron Laser Science/DESY, Notkestrae 85, D-22607 Hamburg (Germany); Lupulescu, Cosmin [Institute of Optics and Atomic Physics, TU Berlin, Strae des 17. Juni 135, D-10623 Berlin (Germany); Arion, Tiberiu [Center for Free-Electron Laser Science/DESY, Notkestrae 85, D-22607 Hamburg (Germany); Institut fr Experimentalphysik, Universitt Hamburg, Luruper Chaussee 149, D-22761 Hamburg (Germany); Darlatt, Erik; Gottwald, Alexander [Physikalisch-Technische Bundesanstalt (PTB), Abbestrae 2-12, D-10587 Berlin (Germany); Eberhardt, Wolfgang [Center for Free-Electron Laser Science/DESY, Notkestrae 85, D-22607 Hamburg (Germany); Institute of Optics and Atomic Physics, TU Berlin, Strae des 17. Juni 135, D-10623 Berlin (Germany)

    2014-01-21T23:59:59.000Z

    Phthalocyanines in combination with C{sub 60} are benchmark materials for organic solar cells. Here, we have studied the morphology and electronic properties of co-deposited mixtures (blends) of these materials forming a bulk heterojunction as a function of the concentration of the two constituents. For a concentration of 1:1 of Cu-Phthalocyanine (CuPc):C{sub 60}, a phase separation into about 100?nm size domains is observed, which results in electronic properties similar to layered systems. For low C{sub 60} concentrations (10:1 CuPc:C{sub 60}), the morphology, as indicated by Low-Energy Electron Microscopy images, suggests a growth mode characterized by (amorphous) domains of CuPC, whereby the domain boundaries are decorated with C{sub 60}. Despite of these markedly different growth modes, the electronic properties of the heterojunction films are essentially unchanged.

  1. Effects of mechanical properties on the reliability of Cu/low-k metallization systems

    E-Print Network [OSTI]

    Wei, Frank L. (Frank Lili), 1977-

    2007-01-01T23:59:59.000Z

    Cu and low-dielectric-constant (k) metallization schemes are critical for improved performance of integrated circuits. However, low elastic moduli, a characteristic of the low-k materials, lead to significant reliability ...

  2. GaN/Cu[subscript 2]O Heterojunctions for Photovoltaic Applications

    E-Print Network [OSTI]

    Hering, K.P.

    Several growth methods were employed to investigate the photovoltaic behavior of GaN/Cu[subscript 2]O heterojunctions by depositing cuprous oxide thin films on top of gallium nitride templates. The templates consist of a ...

  3. DISSERTATION Role of the Cu-O Defect in CdTe Solar Cells

    E-Print Network [OSTI]

    Sites, James R.

    DISSERTATION Role of the Cu-O Defect in CdTe Solar Cells Submitted by Caroline R. Corwine Colorado State University Fort Collins, Colorado Summer 2006 #12;#12;ABSTRACT OF DISSERTATION ROLE

  4. The adsorption of water on Cu2O and Al2O3 thin films

    E-Print Network [OSTI]

    Deng, Xingyi

    2010-01-01T23:59:59.000Z

    since in equilibrium adsorption and desorption rates are theexp(-E a /RT), while the gas adsorption rate depends on theThe adsorption of water on Cu 2 O and Al 2 O 3 thin films

  5. Evaluation of Quasicrystal Al-Cu-Fe Alloys for Tribological Applications

    E-Print Network [OSTI]

    Nabelsi, Nezar

    2013-07-22T23:59:59.000Z

    This research investigated the tribological performance of a composite material, formed from an ultra high molecular weight polyethylene (UHMWPE) matrix and quasicrystalline Al-Cu-Fe alloy powders. An evaluation was conducted for the microstructure...

  6. Simulations of Collision Cascades in CuNb Layered Composites Using an EAM Interatomic Potential

    E-Print Network [OSTI]

    Demkowicz, Michael J.

    The embedded atom method (EAM) is used to construct an interatomic potential for modelling interfaces in CuNb nanocomposites. Implementation of the ZieglerBiersackLittmark (ZBL) model for short-range interatomic ...

  7. Theoretical investigation of the magnetic structure in YBa_2Cu_3O_6

    E-Print Network [OSTI]

    Ekkehard Krger

    2006-08-07T23:59:59.000Z

    As experimentally well established, YBa_2Cu_3O_6 is an antiferromagnet with the magnetic moments lying on the Cu sites. Starting from this experimental result and the assumption, that nearest-neighbor Cu atoms within a layer have exactly antiparallel magnetic moments, the orientation of the magnetic moments has been determined within a nonadiabatic extension of the Heisenberg model of magnetism, called nonadiabatic Heisenberg model. Within this group-theoretical model there exist four stable magnetic structures in YBa_2Cu_3O_6, two of them are obviously identical with the high- and low-temperature structure established experimentally. However, not all the magnetic moments which appear to be antiparallel in neutron-scattering experiments are exactly antiparallel within this group-theoretical model. Furthermore, within this model the magnetic moments are not exactly perpendicular to the orthorhombic c axis.

  8. Characterization of Zr-Fe-Cu Alloys for an Inert Matrix Fuel for Nuclear Energy Applications

    E-Print Network [OSTI]

    Barnhart, Brian A.

    2013-08-09T23:59:59.000Z

    distinct phase morphologies. The top half of the sample was Zr rich and contained Zr precipitates dispersed in a matrix of intermetallic compounds while the bottom half consisted solely of intermetallic compounds. The third alloy, Zr-12Fe-15Cu...

  9. Preparation, magnetic and optical properties of layered oxychalcogenides SmCuOCh (Ch = S or Se)

    SciTech Connect (OSTI)

    Llanos, Jaime [Departamento de Quimica, Universidad Catolica del Norte, Avda. Angamos 0610, Casilla 1280, Antofagasta (Chile)]. E-mail: jllanos@ucn.cl; Cortes, Rodrigo [Departamento de Quimica, Universidad Catolica del Norte, Avda. Angamos 0610, Casilla 1280, Antofagasta (Chile); Guizouarn, T. [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511-CNRS, Universite de Rennes 1-Institut de Chimie de Rennes, 35042 Rennes Cedex (France); Pena, Octavio [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511-CNRS, Universite de Rennes 1-Institut de Chimie de Rennes, 35042 Rennes Cedex (France)

    2006-07-13T23:59:59.000Z

    This paper reports on the synthesis and the electrical, magnetic and optical properties of SmCuOS and SmCuOSe. The magnetic properties reveal that Sm is in its 3+ oxidation state ({mu} {sup theo} = g{radical}J(J + 1) = 0.85 {mu}{sub B}; g = 2/7) with a large Van Vleck contribution, and exclude the possibility of a divalent oxidation state for samarium (Sm{sup 2+}; {sup 7}F{sub 0} state, g = J = 0, {mu} {sub eff} = 0). Optical properties were studied by means of diffuse reflectance and photoluminescence spectra in the UV-vis range. The electrical measurements show that the two samarium copper oxychalcogenides, SmCuOSe and SmCuOS are semiconductors with optical band gap (E {sub g}) values of 2.60 and 2.90 eV, respectively.

  10. Shape memory and superelasticity in polycrystalline Cu-Al-Ni microwires

    E-Print Network [OSTI]

    Chen, Ying

    We report a strategy to significantly improve the ductility and achieve large superelastic and shape memory strains in polycrystalline CuAlNi shape memory alloys that are normally brittle. We use a liquid-phase (Taylor) ...

  11. Evaluation of Quasicrystal Al-Cu-Fe Alloys for Tribological Applications

    E-Print Network [OSTI]

    Nabelsi, Nezar

    2013-07-22T23:59:59.000Z

    This research investigated the tribological performance of a composite material, formed from an ultra high molecular weight polyethylene (UHMWPE) matrix and quasicrystalline Al-Cu-Fe alloy powders. An evaluation was conducted for the microstructure...

  12. Age hardening and creep resistance of cast AlCu alloy modified by praseodymium

    SciTech Connect (OSTI)

    Bai, Zhihao; Qiu, Feng; Wu, Xiaoxue; Liu, Yingying; Jiang, Qichuan, E-mail: jqc@jlu.edu.cn

    2013-12-15T23:59:59.000Z

    The effects of praseodymium on age hardening behavior and creep resistance of cast AlCu alloy were investigated. The results indicated that praseodymium facilitated the formation of the ?? precipitates during the age process and improved the hardness of the AlCu alloy. Besides, praseodymium resulted in the formation of the Al{sub 11}Pr{sub 3} phase in the grain boundaries and among the dendrites of the modified alloy. Because of the good thermal stability of Al{sub 11}Pr{sub 3} phase, it inhibits grain boundary migration and dislocation movement during the creep process, which contributes to the improvement in the creep resistance of the modified alloy at elevated temperatures. - Highlights: Pr addition enhances the hardness and creep resistance of the AlCu alloy. Pr addition facilitates the formation of the ?? precipitates. Pr addition results in the formation of the Al11Pr3 phase in the AlCu alloy.

  13. Structure, Magnetism, and Transport of CuCr2Se4 Thin Films

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    Structure, Magnetism, and Transport of CuCr 2 Se 4 Thindichroism shows that the magnetism persists to the surfacesuch as the nature of magnetism at surfaces and interfaces.

  14. Morphological stability of Cu-Nb nanocomposites under high-energy collision cascades

    E-Print Network [OSTI]

    Zhang, Liang

    We use molecular dynamics and phase field simulations to demonstrate that Cu-Nb multilayered nanocomposites with individual layer thicknesses above 24?nm remain morphologically stable when subjected to 100?keV collision ...

  15. Rapid synthesis and size control of CuInS2 semi-conductor nanoparticle...

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

    semi-conductor nanoparticles make them attractive materials for use in next-generation photovoltaics. We have prepared CuInS2 nanoparticles from single source precursors via...

  16. Rapid Synthesis and Size Control of CuInS2 Semi-Conductor Nanoparticle...

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

    semi-conductor nanoparticles make them attractive materials for use in next-generation photovoltaics. We have prepared CuInS2 nanoparticles from single source precursors via...

  17. Sources and distribution of CuO-derived benzene carboxylic acids in soils and sediments

    E-Print Network [OSTI]

    Long, Bernard

    Sources and distribution of CuO-derived benzene carboxylic acids in soils and sediments Angela F vas- cular plant-derived OC, through the environment. The method produces a suite of benzene

  18. Electronic structure and conductivity of nanocomposite metal (Au,Ag,Cu,Mo)-containing amorphous carbon films

    E-Print Network [OSTI]

    Endrino, Jose L.

    2010-01-01T23:59:59.000Z

    dual-cathode arc deposition (PDC-FCVA) source containingand metal cathodes [2]. The PDC-FCVA system in combinationCu,Mo) incorporation in a-C by PDC-FCVA. The modification of

  19. Effects of Hydrothermal Aging on NH3-SCR reaction over Cu/zeolites...

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

    temperatures, while that of Cu-SSZ-13 was not affected. When the zeolite framework aluminum species were probed using solid state 27Al-NMR, significant reduction in the...

  20. Characterization of Cu{sub 6}Sn{sub 5} intermetallic powders produced by water atomization and powder heat treatment

    SciTech Connect (OSTI)

    Tongsri, Ruangdaj, E-mail: ruangdt@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Yotkaew, Thanyaporn, E-mail: thanyy@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Krataitong, Rungtip, E-mail: rungtipk@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Wila, Pongsak, E-mail: pongsakw@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Sir-on, Autcharaporn, E-mail: autchars@mtec.or.th [Materials Characterization Research Unit (MCRU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Muthitamongkol, Pennapa, E-mail: pennapm@mtec.or.th [Materials Characterization Research Unit (MCRU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Tosangthum, Nattaya, E-mail: nattayt@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand)

    2013-12-15T23:59:59.000Z

    Since the Cu{sub 6}Sn{sub 5} intermetallic shows its importance in industrial applications, the Cu{sub 6}Sn{sub 5} intermetallic-containing powders, produced by a powder processing route with a high production rate, were characterized. The route consisted of water atomization of an alloy melt (Cu61 wt.% Sn) and subsequent heat treatment of the water-atomized powders. Characterization of the water-atomized powders and their heated forms was conducted by using X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Fine water-atomized powder microstructures consisted of primary hexagonal ?-Cu{sub 6.25}Sn{sub 5} dendrites coexisting with interdendritic ?-Cu{sub 6.25}Sn{sub 5} + ?-Sn eutectic. Solidification of fine melt droplets was governed by surface nucleation and growth of the primary hexagonal ?-Cu{sub 6.25}Sn{sub 5} dendrites followed by ?-Cu{sub 6.25}Sn{sub 5} + ?-Sn eutectic solidification of the remnant liquid. In coarse melt droplets, nucleation and growth of primary ?-Cu{sub 3}Sn dendrites were followed by peritectic reaction (?-Cu{sub 3}Sn + liquid ? ?-Cu{sub 6.25}Sn{sub 5}) or direct crystallization of ?-Cu{sub 6.25}Sn{sub 5} phase from the undercooled melt. Finally, the ?-Cu{sub 6.25}Sn{sub 5} + ?-Sn eutectic solidification of the remnant liquid occurred. Heating of the water-atomized powders at different temperatures resulted in microstructural homogenization. The water-atomized powders with mixed phases were transformed to powders with single monoclinic ?-Cu{sub 6}Sn{sub 5} phase. - Highlights: The Cu{sub 6}Sn{sub 5} intermetallic powder production route was proposed. Single phase Cu{sub 6}Sn{sub 5} powders could be by water atomization and heating. Water-atomized CuSn powders contained mixed CuSn phases. Solidification and heat treatment of water-atomized CuSn powders are explained.

  1. Doping Cu{sub 2}O in Electrolyte Solution: Dopant Incorporation, Atomic Structures and Electrical Properties

    SciTech Connect (OSTI)

    Tao, Meng; Zhang, Qiming

    2013-11-24T23:59:59.000Z

    We have pursued a number of research activities between April 2010 and April 2011: ? A detailed study on n-type doping in Cu2O by Br; ? An analysis of natural resource limitations to terawatt-scale solar cells; ? Attempt to achieve a 1.4-eV direct band gap in Ni sulfides (NiSx); ? First-principles studies of doping in Cu2O and electronic structures of NiSx.

  2. Thin-film polycrystalline n-ZnO/p-CuO heterojunction

    SciTech Connect (OSTI)

    Lisitski, O. L.; Kumekov, M. E.; Kumekov, S. E. [Satpaev Kazakh National Technical University (Kazakhstan)], E-mail: skumekov@mail.ru; Terukov, E. I. [Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation)

    2009-06-15T23:59:59.000Z

    Results of X-ray diffraction and spectral-optical studies of n-ZnO and p-CuO films deposited by gas-discharge sputtering with subsequent annealing are presented. It is shown that, despite the difference in the crystal systems, the polycrystallinity of n-ZnO and p-CuO films enables fabrication of a heterojunction from this pair of materials.

  3. Bi-antimony capped Keggin polyoxometalate modified with Cu-ligand fragment

    SciTech Connect (OSTI)

    Huang, Jiao [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China)] [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China); Han, Zhangang, E-mail: hanzg116@yahoo.com.cn [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China)] [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China); Zhang, Heng; Yu, Haitao [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China)] [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China); Zhai, Xueliang, E-mail: xlzhai253@mail.hebtu.edu.cn [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China)] [College of Chemistry and Material Science, Hebei Normal University, No. 20 Road East of 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024 (China)

    2012-10-15T23:59:59.000Z

    Three polyoxometalates consisting of bi-antimony capped Keggin-type clusters: [Cu(mbpy){sub 2}]{sub 2}[PMo{sub 12}O{sub 40}Sb{sub 2}]{center_dot}4H{sub 2}O (1), [Cu(mbpy){sub 2}][PMo{sub 12}O{sub 40}Sb{sub 2}] (2) and {l_brace}Cu(mbpy)[Cu(mbpy){sub 2}]{sub 2}{r_brace}[VMo{sub 8}V{sub 4}O{sub 40}Sb{sub 2}]{center_dot}2H{sub 2}O (3) (mbpy=4,4 Prime -dimethyl-2,2 Prime - dipyridyl in 1 and 2; 5,5 Prime -dimethyl-2,2 Prime -dipyridyl in 3) have been synthesized and characterized by IR, X-ray powder diffraction, TG analysis and electrochemical property. Single-crystal analysis revealed that all of three compounds are built upon bi-antimony capped Keggin-type polyoxoanions and Cu-mbpy cations. In 1-3, two Sb{sup III} centers located at the two opposite of anionic surface adopt fundamentally tetragonal pyramidal coordination geometry. Both compounds 1 and 2 consist of P-centered Keggin structure, while compound 3 presents a V-centered Keggin anion. The Keggin-type anions present different structural features: isolated cluster in 1 and Cu-ligand-supported cluster in 2 and 3. - Graphical abstract: Three hybrid compounds consisting of bi-antimony capped Keggin-type clusters modified with Cu-ligand cations have been synthesized and characterized. Highlights: Black-Right-Pointing-Pointer Three hybrid compounds consisting of bi-antimony capped Keggin-type clusters have been synthesized. Black-Right-Pointing-Pointer Two Sb{sup III} centers located at the two opposite of anionic surface adopt tetragonal pyramidal coordination geometry. Black-Right-Pointing-Pointer The anions present different structural features: isolated and Cu-ligand-supported cluster.

  4. A comparison of visual cuing methods in large displays during performance of a secondary task

    E-Print Network [OSTI]

    Rankin, John Edgar

    1971-01-01T23:59:59.000Z

    A CO?PARISON OF VISUAL CUING KETHODS IN IARGE DISPLAYS DURING PERFORNANCE OF A SECONDARY TASK A Thesis by JOHN EDGAR RANKIN Submitted to the Graduate College of Texas AAN University in partial fulfillment of the requirement for the degree... of WiASTER OF SCIENCE December 1971 Major Subjects Industrial Engineering A COMPARISON OF VISUAL CUING METHODS IN LARGE DISPLAYS DURING PERFORMANCE OF A SECONDARY TASK A Thesis by JOHN EDGAR RANKIN Approved as to style and content by& Chairman...

  5. Pion Interferometry in Au+Au and Cu+Cu Collisions at sqrt sNN = 62.4 and 200 GeV

    SciTech Connect (OSTI)

    STAR Collaboration; Abelev, B.I.

    2009-08-24T23:59:59.000Z

    We present a systematic analysis of two-pion interferometry in Au+Au collisions at {radical}sNN = 62.4 GeV and Cu+Cu collisions at {radical}sNN = 62.4 and 200 GeV using the STAR detector at RHIC. The multiplicity and transverse momentum dependences of the extracted correlation lengths (radii) are studied. The scaling with charged particle multiplicity of the apparent system volume at final interaction is studied for the RHIC energy domain. The multiplicity scaling of the measured correlation radii is found to be independent of colliding system and collision energy.

  6. Magnetic order tuned by Cu substitution in Fe1.1zCuzTe

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

    Wen, Jinsheng; Xu, Zhijun; Xu, Guangyong; Lumsden, M. D.; Valdivia, P. N.; Bourret-Courchesne, E.; Gu, Genda; Lee, Dung-Hai; Tranquada, J. M.; Birgeneau, R. J.

    2012-07-01T23:59:59.000Z

    We study the effects of Cu substitution in Fe?.?Te, the nonsuperconducting parent compound of the iron-based superconductor, Fe??yTe??xSex, utilizing neutron scattering techniques. It is found that the structural and magnetic transitions, which occur at ~60 K without Cu, are monotonically depressed with increasing Cu content. By 10% Cu for Fe, the structural transition is hardly detectable, and the system becomes a spin glass below 22 K, with a slightly incommensurate ordering wave vector of (0.5?, 0, 0.5) with ? being the incommensurability of 0.02, and correlation length of 12 along the a axis and 9 along the c axis. With 4% Cu, both transition temperatures are at 41 K, though short-range incommensurate order at (0.42, 0, 0.5) is present at 60 K. With further cooling, the incommensurability decreases linearly with temperature down to 37 K, below which there is a first-order transition to a long-range almost-commensurate antiferromagnetic structure. A spin anisotropy gap of 4.5 meV is also observed in this compound. Our results show that the weakly magnetic Cu has a large effect on the magnetic correlations; it is suggested that this is caused by the frustration of the exchange interactions between the coupled Fe spins.

  7. Cyclotron production of {sup 61}Cu using natural Zn and enriched {sup 64}Zn targets

    SciTech Connect (OSTI)

    Asad, A. H.; Smith, S. V.; Chan, S.; Jeffery, C. M.; Morandeau, L.; Price, R. I. [RAPID PET Labs, Medical Technology and Physics, Sir Charles Gairdner Hospital, Perth, Australia, Imaging and Applied Physics, Curtin University, Perth, Australia, and Center of Excellence in Anti-matter Matter Studies, Australian National University, Can (Australia); Brookhaven National Laboratory, Upton, NY (United States) and Center of Excellence in Anti-matter Matter Studies, Australian National University, Canberra (Australia); RAPID PET Labs, Medical Technology and Physics, Sir Charles Gairdner Hospital, Perth (Australia); RAPID PET Labs, Medical Technology and Physics, Sir Charles Gairdner Hospital, Perth (Australia); Center of Excellence in Anti-matter Matter Studies, Australian National University, Canberra, Australia, and Chemistry, University of Western Australia, Pe (Australia); RAPID PET Labs, Medical Technology and Physics, Sir Charles Gairdner Hospital, Perth (Australia); RAPID PET Labs, Medical Technology and Physics, Sir Charles Gairdner Hospital, Perth, Australia and Physics, University of Western Australia, Perth (Australia)

    2012-12-19T23:59:59.000Z

    Copper-61 ({sup 61}Cu) shares with {sup 64}Cu certain advantages for PET diagnostic imaging, but has a shorter half-life (3.4hr vs. 12.7hr) and a greater probability of positron production per disintegration (61% vs. 17.9%). One important application is for in vivo imaging of hypoxic tissue. In this study {sup 61}Cu was produced using the {sup 64}Zn(p,{alpha}){sup 61}Cu reaction on natural Zn or enriched {sup 64}Zn targets. The enriched {sup 64}Zn (99.82%) was electroplated onto high purity gold or silver foils or onto thin Al discs. A typical target bombardment used 30{mu}A; at 11.7, 14.5 or 17.6MeV over 30-60min. The {sup 61}Cu (radiochemical purity of >95%) was separated using a combination of cation and anion exchange columns. The {sup 64}Zn target material was recovered after each run, for re-use. In a direct comparison with enriched {sup 64}Zn-target results, {sup 61}Cu production using the cheaper {sup nat}Zn target proved to be an effective alternative.

  8. The Different Impacts of SO2 and SO3 on Cu/Zeolite SCR Catalysts

    SciTech Connect (OSTI)

    Cheng, Yisun; Lambert, Christine; Kim, Do Heui; Kwak, Ja Hun; Cho, Sung June; Peden, Charles HF

    2010-06-19T23:59:59.000Z

    The different impacts of SO2 and SO3 on Cu/zeolite SCR catalysts were investigated by SCR performance tests and multiple characterization techniques including temperature programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS) and X-ray absorption fine structure (XAFS). The results indicate that a larger amount of highly dispersed CuSO4 formed in the zeolite catalysts (Z-CuSO4) upon SO3 poisoning, explaining the much more significant deactivation of the Cu/zeolite catalysts that were exposed to SO3 compared to poisoning by SO2. This paper provides the first demonstration that active sites of Cu/zeolite SCR catalysts involved in the storage and removal of sulfur can react with SO2 and SO3 in very different ways. In particular, the significant differences in the extent of sulfur uptake account for the considerably different impacts of SO2 and SO3 poisoning on the performance of Cu/zeolite SCR catalysts.

  9. The Different Impacts of SO2 and SO3 on Cu/zeolite SCR Catalysts

    SciTech Connect (OSTI)

    Cheng, Y.; Lambert, C; Kim, D; Kwak, J; Cho, S; Peden, C

    2010-01-01T23:59:59.000Z

    The different impacts of SO{sub 2} and SO{sub 3} on Cu/zeolite SCR catalysts were investigated by SCR performance tests and multiple characterization techniques including temperature programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS) and X-ray absorption fine structure (XAFS). The results indicate that a larger amount of highly dispersed CuSO{sub 4} formed in the zeolite catalysts (Z-CuSO{sub 4}) upon SO{sub 3} poisoning, explaining the much more significant deactivation of the Cu/zeolite catalysts that were exposed to SO{sub 3} compared to poisoning by SO{sub 2}. This paper provides the first demonstration that active sites of Cu/zeolite SCR catalysts involved in the storage and removal of sulfur can react with SO{sub 2} and SO{sub 3} in very different ways. In particular, the significant differences in the extent of sulfur uptake account for the considerably different impacts of SO{sub 2} and SO{sub 3} poisoning on the performance of Cu/zeolite SCR catalysts.

  10. Enhanced thermoelectric performance in Cd doped CuInTe{sub 2} compounds

    SciTech Connect (OSTI)

    Cheng, N. [State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049 (China); Liu, R. [State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); Bai, S. [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); Shi, X., E-mail: xshi@mail.sic.ac.cn; Chen, L. [State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China); CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (China)

    2014-04-28T23:59:59.000Z

    CuIn{sub 1?x}Cd{sub x}Te{sub 2} materials (x?=?0, 0.02, 0.05, and 0.1) are prepared using melting-annealing method and the highly densified bulk samples are obtained through Spark Plasma Sintering. The X-ray diffraction data confirm that nearly pure chalcopyrite structures are obtained in all the samples. Due to the substitution of Cd at In sites, the carrier concentration is greatly increased, leading to much enhanced electrical conductivity and power factor. The single parabolic band model is used to describe the electrical transport properties of CuInTe{sub 2} and the low temperature Hall mobility is also modeled. By combing theoretical model and experiment data, the optimum carrier concentration in CuInTe{sub 2} is proposed to explain the greatly enhanced power factors in the Cd doped CuInTe{sub 2}. In addition, the thermal conductivity is reduced by extra phonon scattering due to the atomic mass and radius fluctuations between Cd and In atoms. The maximum zTs are observed in CuIn{sub 0.98}Cd{sub 0.02}Te{sub 2} and CuIn{sub 0.9}Cd{sub 0.1}Te{sub 2} samples, which are improved by over 100% at room temperature and around 20% at 600?K.

  11. Magnetic order tuned by Cu substitution in Fe1.1zCuzTe

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

    Wen, Jinsheng; Xu, Zhijun; Xu, Guangyong; Lumsden, M. D.; Valdivia, P. N.; Bourret-Courchesne, E.; Gu, Genda; Lee, Dung-Hai; Tranquada, J. M.; Birgeneau, R. J.

    2012-07-01T23:59:59.000Z

    We study the effects of Cu substitution in Fe?.?Te, the nonsuperconducting parent compound of the iron-based superconductor, Fe??yTe??xSex, utilizing neutron scattering techniques. It is found that the structural and magnetic transitions, which occur at ~60 K without Cu, are monotonically depressed with increasing Cu content. By 10% Cu for Fe, the structural transition is hardly detectable, and the system becomes a spin glass below 22 K, with a slightly incommensurate ordering wave vector of (0.5?, 0, 0.5) with ? being the incommensurability of 0.02, and correlation length of 12 along the a axis and 9 along the cmoreaxis. With 4% Cu, both transition temperatures are at 41 K, though short-range incommensurate order at (0.42, 0, 0.5) is present at 60 K. With further cooling, the incommensurability decreases linearly with temperature down to 37 K, below which there is a first-order transition to a long-range almost-commensurate antiferromagnetic structure. A spin anisotropy gap of 4.5 meV is also observed in this compound. Our results show that the weakly magnetic Cu has a large effect on the magnetic correlations; it is suggested that this is caused by the frustration of the exchange interactions between the coupled Fe spins.less

  12. Novel Approaches to Wide Bandgap CuInSe2 Based Absorbers

    SciTech Connect (OSTI)

    William N. Shafarman

    2011-04-28T23:59:59.000Z

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

  13. Chip-Level Electromigration Reliability for Cu Interconnects

    SciTech Connect (OSTI)

    Gall, M.; Oh, C.; Grinshpon, A.; Zolotov, V.; Panda, R.; Demircan, E.; Mueller, J.; Justison, P.; Ramakrishna, K.; Thrasher, S.; Hernandez, R.; Herrick, M.; Fox, R.; Boeck, B.; Kawasaki, H. [Technology Solutions Organization, Freescale Semiconductor (United States); Haznedar, H.; Ku, P. [Sector Quality, Freescale Semiconductor (United States)

    2004-12-08T23:59:59.000Z

    Even after the successful introduction of Cu-based metallization, the electromigration (EM) failure risk has remained one of the most important reliability concerns for most advanced process technologies. Ever increasing operating current densities and the introduction of low-k materials in the backend process scheme are some of the issues that threaten reliable, long-term operation at elevated temperatures. The traditional method of verifying EM reliability only through current density limit checks is proving to be inadequate in general, or quite expensive at the best. A Statistical EM Budgeting (SEB) methodology has been proposed to assess more realistic chip-level EM reliability from the complex statistical distribution of currents in a chip. To be valuable, this approach requires accurate estimation of currents for all interconnect segments in a chip. However, no efficient technique to manage the complexity of such a task for very large chip designs is known. We present an efficient method to estimate currents exhaustively for all interconnects in a chip. The proposed method uses pre-characterization of cells and macros, and steps to identify and filter out symmetrically bi-directional interconnects. We illustrate the strength of the proposed approach using a high-performance microprocessor design for embedded applications as a case study.

  14. CSM Academic Computing and Networking Computer Commons Lab Reservation/Use

    E-Print Network [OSTI]

    in your request: Your name, department, telephone number and Mines email address. What lab you need's Academic Mission will be given priority. Lab availability may vary throughout the year, based on the school's schedule, maintenance activities, and other issues that may arise. If you need a special set up

  15. Colorado School of Mines 1 General CSM Minor/ASI requirements can be

    E-Print Network [OSTI]

    OF PETROLEUM PRODUCTION PEGN419 WELL LOG ANALYSIS AND FORMATION EVALUATION PEGN422 ECONOMICS AND EVALUATION Interest in Energy Program Educational Objectives The discovery, production, and use of energy in modern production and use but its broader social impacts as well. Students pursuing the Energy Minor may choose from

  16. Large-scale application of some modern CSM methodologies by parallel computation

    E-Print Network [OSTI]

    Li, Shaofan

    ,b,*, R.A. Urasc , M.D. Adleyb , S. Lia a Mechanical Engineering and Army High Performance Computing.g. Message Passing Interface, MPI) have increased the use of High Performance Computing (HPC). Several Army Engineer Research and Development Center (ERDC) and the Army High Performance Computing Research

  17. DATA CHANGE NOTIFICATION FORM CSM/LM SPACECRAFT OPERATIONAL DATA BOOK

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Lunar Surface Magnetometer 2330657 7 Solar Wind Spectrometer 2330658 7 SIDE/CCIG 2338104 7 Heat Flow PROBE 3....._- Figure 2-9 Heat Flow Experiment Deployed Configuration D- 2-15 SNA-8-D-027(V) #12;tJ I N I ...... 0'- 8659-8 PANEL B ARRAY DEPLOYMENT HANDLE PANEL A ARRAY (204 RETRO

  18. Recycle Batteries CSM recycles a variety of battery types including automotive, sealed lead acid, nickel

    E-Print Network [OSTI]

    , nickel cadmium (Nicad), nickel metal hydride, lithium ion, silver button, mercury, magnesium carbon. Recycling rechargeable batteries Rechargeable batteries are often referred to as nickel cadmium, nickel Battery Per Bag Please sort the batteries by battery type, using a separate receptacle for nickel cadmium

  19. Undergraduate Student Ethics Outcomes 4/28/14 draft developed by the CSM Assessment Committee

    E-Print Network [OSTI]

    while developing their ABET reports. In addition, the December 2013 Strategic Plan and The Profile will identify ethical issues from the perspectives of a variety of stakeholders (client, manager, etc. Analyze FE exam subscore for ethics and business practices. 4. Solicit student feedback via surveys

  20. CSM Trailhead Channel Development Policy page 1 of 1 Colorado School of Mines Trailhead

    E-Print Network [OSTI]

    . Channel Development III. Channel Development Work Flow IV. Channel Building Tools V. Channel Requirements VI. Channel Guidelines VII. Responsibilities of Users VIII. Related Links Appendix A. Tab. Channels are intended to deliver dynamic, high-demand content and interactive applications to a significant

  1. Penn State Career Services Nittany Lion Career Network (https://psu-csm.symplicity.com/employers)

    E-Print Network [OSTI]

    Lee, Dongwon

    and Information Systems (http://www.smeal.psu.edu/scis/recruit) Brianne Kepler Administrative Support Assistant of Communications (http://comm.psu.edu/current/career-services-and-internships) Bob Martin Assistant Dean, Office Assistant, Recruiting & Employer Relations interviewing@psu.edu 814-863-0225 Full Time - All Majors Smeal

  2. Pressure dependence of the superconducting critical temperature of Tl 2Ba 2Ca 2Cu 3O 10 y and Tl 2Ba 2Ca 3Cu 4O12 y up to 21 GPa

    E-Print Network [OSTI]

    Wijngaarden, Rinke J.

    Pressure dependence of the superconducting critical temperature of Tl 2Ba 2Ca 2Cu 3O 10 y and Tl 2 of the superconducting transition temperature Tc of Tl2Ba2Ca2Cu3O10 y Tl-2223 and Tl2Ba2Ca3Cu4O12 y Tl-2234 has been it is determined by that of the inner CuO2 layers. S0163-1829 96 07134-2 I. INTRODUCTION Superconductivity in high

  3. arXiv:0904.0439v1[nucl-ex]2Apr2009 J/ production at high transverse momenta in p+p and Cu+Cu collisions at

    E-Print Network [OSTI]

    Llope, William J.

    +Cu collisions at sNN = 200 GeV B. I. Abelev,8 M. M. Aggarwal,30 Z. Ahammed,47 B. D. Anderson,18 D. Arkhipkin,12

  4. Measurement of electrons from heavy-flavor decays from $p$+$p$, $d$+Au, and Cu+Cu collisions in the PHENIX experiment

    E-Print Network [OSTI]

    Sanghoon Lim

    2014-08-18T23:59:59.000Z

    Charm and bottom quarks are formed predominantly by gluon fusion in the initial hard scatterings at RHIC, making them good probes of the full medium evolution. Previous measurements at RHIC have shown large suppression and azimuthal anisotropy of open heavy-flavor hadrons in Au+Au collisions at $\\sqrt{s_{NN}}=200~{\\rm GeV}$. Explaining the simultaneously large suppression and flow of heavy quarks has been challenging. To further understand the heavy-flavor transport in the hot and dense medium, it is imperative to also measure cold nuclear matter effects which affect the initial distribution of heavy quarks as well as the system size dependence of the final state suppression. In this talk, new measurements by the PHENIX collaboration of electrons from heavy-flavor decays in $p$+$p$, $d$+Au, and Cu+Cu collisions at $\\sqrt{s_{NN}}=200~{\\rm GeV}$ are presented. In particular, a surprising enhancement of intermediate transverse momentum heavy-flavor decay leptons in $d$+Au at mid and backward rapidity are also seen in mid-central Cu+Cu collisions. This enhancement is much larger than the expectation from anti-shadowing of the parton distributions and is theoretically unexplained.

  5. DISSERTATION IMPACT OF SECONDARY BARRIERS ON CuIn1-xGaxSe2 SOLAR-CELL

    E-Print Network [OSTI]

    Sites, James R.

    DISSERTATION IMPACT OF SECONDARY BARRIERS ON CuIn1-xGaxSe2 SOLAR-CELL OPERATION Submitted by Alexei Impact of Secondary Barriers on CuIn1-xGaxSe2 Solar-Cell Operation Thin-film solar cells based on CuInSe2 layers in p-n junctions of CIGS solar cells often improve photodiode properties of the devices. Several

  6. Photoelectron spectroscopic study of the surface reactivity of the high T[c] material YBa?Cu?O?

    E-Print Network [OSTI]

    Liu, Hong-Xia

    1988-01-01T23:59:59.000Z

    extensive in the area of the high T, Y-Ba-Cu-0 system. 1. 1. Properties of the high T, Y-Ba-Cu-0 system The high T, Y-Ba-Cu-0 system is the single phase compound YBagCu309 8 with 5=2 (Cava et al 1987). It is an orthorhombically distorted perovskite.... The elimination of Cus+ satellite indicated the conversion to Cur+ or Cuo on the surface. As mentioned before, the sample is an orthorhombically distorted perovskite. The crystal structure facilitates reactive decomposition at high temperature (Gallagher et al...

  7. Plastic deformation in Al (Cu) interconnects stressed by electromigration and studied by synchrotron polychromatic X-ray microdiffraction

    E-Print Network [OSTI]

    Chen, Kai; Advanced Light Source; UCLA

    2008-01-01T23:59:59.000Z

    Plastic deformation in Al (Cu) interconnects stressed bygrain orientation [7], study plastic deformation [12-15] andThis aspect of EM-induced plastic deformation in grains

  8. Z .Applied Surface Science 142 1999 1822 z /Electronic properties of a pseudomorphic Cu-layer on Ni 111

    E-Print Network [OSTI]

    Birkenheuer, Uwe

    ARUPS measurements were recorded using linearly polarized synchrotron radiation from the TGM-1 monochromator at the German syn- chrotron facility BESSY in Berlin. Pseudomorphic Cu monolayers were produced

  9. Role of spin mixing conductance in spin pumping: Enhancement of spin pumping efficiency in Ta/Cu/Py structures

    SciTech Connect (OSTI)

    Deorani, Praveen; Yang, Hyunsoo, E-mail: eleyang@nus.edu.sg [Department of Electrical and Computer Engineering, National University of Singapore, 117576 Singapore (Singapore)] [Department of Electrical and Computer Engineering, National University of Singapore, 117576 Singapore (Singapore)

    2013-12-02T23:59:59.000Z

    From spin pumping measurements in Ta/Py devices for different thicknesses of Ta, we determine the spin Hall angle to be 0.0210.033 and spin diffusion length to be 8?nm in Ta. We have also studied the effect of changing the properties of non-magnet/ferromagnet interface by adding a Cu interlayer. The experimental results show that the effective spin mixing conductance increases in the presence of Cu interlayer for Ta/Cu/Py devices whereas it decreases in Pt/Cu/Py devices. Our findings allow the tunability of the spin pumping efficiency by adding a thin interlayer at the non-magnet/ferromagnet interface.

  10. Ab initio cluster studies of La sub 2 CuO sub 4

    SciTech Connect (OSTI)

    Martin, R.L.

    1991-01-01T23:59:59.000Z

    In this paper we examine the properties of small cluster models of La{sub 2}CuO{sub 4}. In Section 2, the Madelung/Pauli background potential used to imbed the primary cluster and the basis sets used to expand the cluster wavefunction are discussed. Section 3 presents the results of calculations on CuO{sub 6} in which the optical absorption and the photoemission spectrum are examined. The calculation on CuO{sub 6} and our earlier work on larger clusters suggest that a single-band Pariser-Parr-Pople (PPP) model be developed. Therefore, in Section 4 the PPP model and extensions which relax the zero-differential-overlap (ZDO) approximation upon which it is based are reviewed. Calculations on the states of Cu{sub 2}O{sub 7} necessary to parameterize the PPP model are presented in Section 5 and compared with analogous calculations for Cu{sub 2}O{sub 11}. Section 6 discusses the problems associated with the direct ab initio determination of the anti-ferromagnetic exchange interaction, examines the magnitudes of the occupation-dependent hopping and direct exchange interactions which arise when the ZDO approximation is relaxed, and provides estimates of the uncertainties in the parameters due to electron correlation and polarization effects not recoverable with the present basis sets and finite clusters. A comparison of the parameters with those extracted from constrained LDF theory concludes Section 6. Finally, Section 7 summarizes the conclusions of this research.

  11. Trap and recombination centers study in sprayed Cu?ZnSnS? thin films

    SciTech Connect (OSTI)

    Courel, Maykel, E-mail: maykelcourel@gmail.com; Vigil-Galn, O.; Jimnez-Olarte, D. [Escuela Superior de Fsica y Matemticas-Instituto Politcnico Nacional (IPN), C.P. 07738, Mxico DF (Mexico); Espndola-Rodrguez, M. [Escuela Superior de Fsica y Matemticas-Instituto Politcnico Nacional (IPN), C.P. 07738, Mxico DF (Mexico); Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adri de Bess, Barcelona (Spain); Saucedo, E. [Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adri de Bess, Barcelona (Spain)

    2014-10-07T23:59:59.000Z

    In this work, a study of trap and recombination center properties in polycrystalline Cu?ZnSnS? thin films is carried out in order to understand the poor performance in Cu?ZnSnS? thin film solar cells. Thermally stimulated current has been studied in Cu?ZnSnS? deposited by pneumatic spray pyrolysis method using various heating rates, in order to gain information about trap centers and/or deep levels present within the band-gap of this material. A set of temperature-dependent current curves revealed three levels with activation energy of 12610, 47625, and 1100100 meV. The possible nature of the three levels found is presented, in which the first one is likely to be related to Cu{sub Zn} antisites, while second and third to Sn vacancies and Sn{sub Cu} antisites, respectively. The values of frequency factor, capture cross section, and trap concentration have been determined for each center.

  12. Scintillation characteristics of undoped and Cu+-doped Li2B4O7 single crystals

    E-Print Network [OSTI]

    Kobayashi, Masaaki; Senguttuvan, Nachimuthu

    2015-01-01T23:59:59.000Z

    Scintillation characteristics of undoped and Cu+-doped lithium tetraborate Li2B4O7 (LTB) were studied including optical transmittance, photoluminescence, radioluminescence for X- and gamma-rays, alpha/gamma ratio, and decay kinetics. The total time-integrated LYs in undoped and Cu+-doped LTB for X-rays are ~600 and ~760 ph/MeV (photons/MeV), respectively. The decay kinetics in undoped and Cu+-doped LTB are similar to each other. Typical decay spectra for pulsed X-rays can be fitted with four exponentials: for fast (t1~0.8 ns, t2~25-50 ns), medium (t3~300-400 ns), and slow (t4~20-30 ms) components. The slow component occupies about 60% of the total LY, while the fast ones less than 10%. The 10-90% rise time was 163 ps. The alpha/gamma ratio was 0.18 for external 241Am alpha-rays. The obtained increase in LY due to Cu+ doping remains modest. The Cu+-induced emission contains both fast and slow components, requiring further studies of the emission mechanism to explain the fast component.

  13. Scintillation characteristics of undoped and Cu+-doped Li2B4O7 single crystals

    E-Print Network [OSTI]

    Masaaki Kobayashi; Mitsuru Ishii; Nachimuthu Senguttuvan

    2015-03-12T23:59:59.000Z

    Scintillation characteristics of undoped and Cu+-doped lithium tetraborate Li2B4O7 (LTB) were studied including optical transmittance, photoluminescence, radioluminescence for X- and gamma-rays, alpha/gamma ratio, and decay kinetics. The total time-integrated LYs in undoped and Cu+-doped LTB for X-rays are ~600 and ~760 ph/MeV (photons/MeV), respectively. The decay kinetics in undoped and Cu+-doped LTB are similar to each other. Typical decay spectra for pulsed X-rays can be fitted with four exponentials: for fast (t1~0.8 ns, t2~25-50 ns), medium (t3~300-400 ns), and slow (t4~20-30 ms) components. The slow component occupies about 60% of the total LY, while the fast ones less than 10%. The 10-90% rise time was 163 ps. The alpha/gamma ratio was 0.18 for external 241Am alpha-rays. The obtained increase in LY due to Cu+ doping remains modest. The Cu+-induced emission contains both fast and slow components, requiring further studies of the emission mechanism to explain the fast component.

  14. Application Of Ti-Based Self-Formation Barrier Layers To Cu Dual-Damascene Interconnects

    SciTech Connect (OSTI)

    Ito, Kazuhiro; Kohama, Kazuyuki [Department of Materials Science and Engineering, Kyoto University, Kyoto 606-8501 (Japan); Ohmori, Kazuyuki; Mori, Kenichi; Maekawa, Kazuyoshi; Asai, Koyu [Process Technology Div., Renesas Electronics Corporation, Hitachinaka, Ibaraki 312-8504 (Japan); Murakami, Masanori [The Ritsumeikan Trust, Nakagyo-ku, Kyoto 604-8520 (Japan)

    2010-11-24T23:59:59.000Z

    Cu interconnects have been used extensively in ULSI devices. However, large resistance-capacitance delay and poor device reliability have been critical issues as the device feature size has reduced to nanometer scale. In order to achieve low resistance and high reliability of Cu interconnects, we have applied a thin Ti-based self-formed barrier (SFB) using Cu(Ti) alloy seed to 45nm-node dual damascene interconnects and evaluated its performance. The line resistance and via resistance decreased significantly, compared with those of conventional Ta/TaN barriers. The stress migration performance was also drastically improved using the SFB process. A performance of time dependent dielectric breakdown revealed superior endurance. These results suggest that the Ti-based SFB process is one of the most promising candidates for advanced Cu interconnects. TEM and X-ray photoelectron spectroscopy observations for characterization of the Ti-based SFB structure were also performed. The Ti-based SFB consisted of mainly amorphous Ti oxides. Amorphous or crystalline Ti compounds such as TiC, TiN, and TiSi formed beneath Cu alloy films, and the formation varied with dielectric.

  15. Electroslag surfacing of steel shafting with Ni alloy 625 and 70Cu-30Ni strip

    SciTech Connect (OSTI)

    Devletian, J.H.; Gao, Y.P.; Wood, W.E. [Oregon Graduate Inst. of Science and Technology, Portland, OR (United States)

    1996-12-31T23:59:59.000Z

    A comprehensive study of electroslag surfacing (ESS) of steel with Ni Alloy 625 and 70Cu-30Ni strip electrodes was conducted to establish the feasibility of replacing forged bearing sleeves on propulsion shafting with integral weld surfacing. The base material was MIL-S-23284, Class 1 steel in the form of 41--66 cm (16--26 in.) diameter shafting and 76 mm (3 in.) thick flat plate. All ESS was carried out at a heat input level of approximately 5.9kJ/mm (150 kJ/in.) using 30 x 0.5 mm (1.2 x 0.02 in.) strip electrodes. Assessments of mechanical properties and microstructure of Ni Alloy 625 surfacing and 70Cu-30Ni surfacing were conducted to establish the structure-property relationships in these complex alloy systems. In addition, a solidification cracking test was developed to determine the relative cracking susceptibilities of these strip surfacing alloys. Although the Ni Alloy 625 surfacing contained small islands of interdendritic MC type carbides and Laves phase, the mechanical properties of this surfacing were satisfactory. The 70Cu-30Ni surfacing required a buttering layer of 30Cu-70Ni or pure Ni to prevent solidification cracking. The inherent ductility-dip sensitivity of 70Cu-30Ni surfacing was overcome by the development of a suitable ESS procedure.

  16. CuAl{sub 2} revisited: Composition, crystal structure, chemical bonding, compressibility and Raman spectroscopy

    SciTech Connect (OSTI)

    Grin, Yuri [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany)]. E-mail: grin@cpfs.mpg.de; Wagner, Frank R. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Armbruester, Marc [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Kohout, Miroslav [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Leithe-Jasper, Andreas [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Schwarz, Ulrich [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, 01187 Dresden (Germany); Wedig, Ulrich [Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstr. 1, 70569 Stuttgart (Germany); Georg von Schnering, Hans [Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstr. 1, 70569 Stuttgart (Germany)

    2006-06-15T23:59:59.000Z

    The structure of CuAl{sub 2} is usually described as a framework of base condensed tetragonal antiprisms [CuAl{sub 8/4}]. The appropriate symmetry governed periodic nodal surface (PNS) divides the space of the structure into two labyrinths. All atoms are located in one labyrinth, whereas the second labyrinth seems to be 'empty'. The bonding of the CuAl{sub 2} structure was analyzed by the electron localization function (ELF), crystal orbital Hamiltonian population (COHP) analysis and Raman spectroscopy. From the ELF representation it is seen, that the 'empty' labyrinth is in fact the place of important covalent interactions. ELF, COHP in combination with high-pressure X-ray diffraction and Raman spectroscopy show that the CuAl{sub 2} structure is described best as a network built of interpenetrating graphite-like nets of three-bonded aluminum atoms with the copper atoms inside the tetragonal-antiprismatic cavities. - Graphical abstract: Atomic interactions in the crystal structure of the intermetallic compound CuAl{sub 2}: Three-bonded aluminum atoms form interpenetrating graphite-like nets. The copper atoms are located in the channels of aluminum network by means of three-center bonds. The bonding model is in agreement with the result of polarized Raman spectroscopy and high-pressure X-ray powder diffraction.

  17. Three-dimensional local structure of photoexcited Cu diimine complex refined by quantitative XANES analysis.

    SciTech Connect (OSTI)

    Smolentsev, G.; Soldatov, A. V.; Chen, L. X.; Chemical Sciences and Engineering Division; Southern Federal Univ.; Northwestern Univ.

    2008-05-28T23:59:59.000Z

    The structural details of [Cu(dmp){sub 2}]{sup +} (dmp = 2,9-dimethyl-1,10-phenanthroline) at its metal-to-ligand charge-transfer (MLCT) excited-state in acetonitrile were extracted using quantitative analysis of Cu K-edge X-ray adsorption near edge structure (XANES). The study combines two techniques: fitting experimental XANES spectra with a multidimensional interpolation approximation, and calculating theoretical XANES spectra with molecular potentials beyond the muffin-tin approximation. The results of the study show that the best fit of the experimental XANES data must include a solvent molecule binding to the Cu with a short Cu-N distance of 2.00 {angstrom}. This confirms that the formation of an exciplex is responsible for the excited-state quenching in coordinating solvents, such as acetonitrile. Moreover, the calculations suggest that the formation of this exciplex state is accompanied by significant rocking distortions of the dmp ligands resulting in a 108{sup o} angle between the N(solvent)-Cu bond and the C{sub 2} symmetry axis of the dmp ligand. This combined approach allows us to extract molecular configurations that would otherwise be missed in a conventional qualitative XANES analysis.

  18. Investigation of solar cells based on Cu/sub 2/O. Progress report, June 1, 1980-November 30, 1980

    SciTech Connect (OSTI)

    Olsen, L. C.

    1981-02-01T23:59:59.000Z

    Progress was made in three areas: microstructure of Cu/sub 2/O substrates; correlation of Cu/sub 2/O microstructure with Cu/Cu/sub 2/O cell properties; and in fabrication of Tl/Cu/sub 2/O Schottky barriers. Characterization of Cu/sub 2/O substrates with IMMA indicates that Cl is uniformly distributed through grains, Mg precipitates at grain boundaries and Na and Fe precipitates occur throughout the material. It is clear that the presence of Cl results in lower p-type resistivities. Previous photoresponse scans established that grain boundaries are not significantly active concerning minority carrier recombination. I-V analyses of Cu/Cu/sub 2/O cells indicate that leakage current components are a result of distributed effects, and not a grain boundary mechanism. It is not yet clear whether the distributed effects are strictly a surface effect, or a result of bulk defects such as Na and Fe precipitates. Tl/Cu/sub 2/O Schottky barrier studies are progressing well. This device structure is being used as a means of determining if a significant built-in voltage can be achieved with a Cu/sub 2/O cell. Problems were encountered concerning deposition of thin Tl films. The films tend to agglomerate. Substrates will be cooled to counter the apparent lateral diffusion. V/sub oc/ values greater than 0.6 volts were obtained with thick film Tl/Cu/sub 2/O cells, however. These results suggest an improved built-in potential was achieved.

  19. Cu2ZnSnS x O4 x and Cu2ZnSnS x Se4 x : First principles simulations of optimal alloy configurations and their energies

    E-Print Network [OSTI]

    Holzwarth, Natalie

    .1063/1.4819206 The role of secondary phase precipitation on grain boundary electrical activity in Cu2ZnSnS4 (CZTS in thin film solar cells, multicomponent copper chalcogenide based com- pounds, namely, Cu2ZnSnS4(CZTS sulphide CZTS device has reported an efficiency of 8.4%,5 whereas the best pure selenide CZTSe device has

  20. Cluster studies of La{sub 2}CuO{sub 4}: Local geometric distortions

    SciTech Connect (OSTI)

    Martin, R.L.

    1993-11-01T23:59:59.000Z

    The techniques of ab initio electronic structure theory are used to study Cu{sub 2}O{sub 7} and Cu{sub 2}O{sub 11} cluster models of La{sub 2}CuO{sub 4}. Fair agreement is obtained with the experimentally determined spin exchange constant J (90 meV calculated vs. 125 meV measured) at the expense of quite large CI expansions. Results for various charge states of the cluster are well described by a {open_quotes}single-band{close_quotes} PPP model. As in earlier LDF based parameter determinations, the present work suggests these materials fall in the strong coupling regime. However, a significant intersite Coulomb repulsion is found in the present research. It is of sufficient strength, V {approximately} U/5, to indicate that charge fluctuations may be more important in these materials than generally believed.

  1. Optical and quantum efficiency analysis of (Ag,Cu)(In,Ga)Se2 absorber layers

    SciTech Connect (OSTI)

    Boyle, Jonathan; Hanket, Gregory; Shafarman, William

    2009-06-09T23:59:59.000Z

    (Ag,Cu)(In,Ga)Se2 thin films have been deposited by elemental co-evaporation over a wide range of compositions and their optical properties characterized by transmission and reflection measurements and by relative shift analysis of quantum efficiency device measurements. The optical bandgaps were determined by performing linear fits of (?h?)2 vs. h?, and the quantum efficiency bandgaps were determined by relative shift analysis of device curves with fixed Ga/(In+Ga) composition, but varying Ag/(Cu+Ag) composition. The determined experimental optical bandgap ranges of the Ga/(In+Ga) = 0.31, 0.52, and 0.82 groups, with Ag/(Cu+Ag) ranging from 0 to 1, were 1.19-1.45 eV, 1.32-1.56 eV, and 1.52-1.76 eV, respectively. The optical bowing parameter of the different Ga/(In+Ga) groups was also determined.

  2. Determination of Na submonolayer adsorption site on Cu(111) by low-energy ion blocking

    SciTech Connect (OSTI)

    Zhang, R.; Makarenko, B. [Department of Chemistry, University of Houston, Houston, Texas 77204 (United States); Bahrim, B. [Department of Chemistry and Physics, Lamar University, Beaumont, Texas 77710 (United States); Rabalais, J. W. [Department of Chemistry, University of Houston, Houston, Texas 77204 (United States); Department of Chemistry and Physics, Lamar University, Beaumont, Texas 77710 (United States)

    2007-09-15T23:59:59.000Z

    The structure of a submonolayer coverage of sodium adsorbed on a Cu(111) surface at room temperature has been investigated using time-of-flight scattering and recoiling spectrometry. The effect of the adsorbed Na atoms on the angular distribution of scattered 2 keV H{sup +} ions is analyzed by molecular dynamics and scattering and recoiling imaging code simulations. It is shown that at a coverage {theta}=0.25 monolayer, Na atoms preferentially populate the fcc threefold surface sites with a height of 2.7{+-}0.1 A above the first-layer Cu atoms. At a lower coverage of {theta}=0.10 ML, there is no adsorption site preference for the Na atoms on the Cu(111) surface.

  3. Electrical resistivity, optical and magnetic properties of the layered oxyselenide SmCuOSe

    SciTech Connect (OSTI)

    Llanos, Jaime [Departamento de Quimica, Facultad de Ciencias, Universidad Catolica del Norte, Casa Central Antofagasta Pab. Avda. Angamos 0610, Casilla 1280, Antofagasta (Chile)]. E-mail: jllanos@ucn.cl; Pena, Octavio [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511-CNRS, Universite Rennes 1-Institut de Chimie de Rennes, 35042 Rennes Cedex (France)

    2005-04-15T23:59:59.000Z

    The electrical and magnetic properties of the tetragonal phase SmCuOSe are reported as a function of the temperature. The optical properties were studied by means of diffuse reflectance spectrum in the UV-Vis range. The electrical resistivity measurements as well as diffuse reflectance spectrum show that SmCuOSe is a semiconductor with an optical band gap (E{sub g}) of 2.6eV. In this phase, Cu is at its monovalent oxidation state and, as such, it does not contribute to the total magnetic moment, whereas Sm is in its 3+ oxidation state, with a large VanVleck contribution due to the admixture of the fundamental state with higher energy levels.

  4. INTERFACE DISORDER CONTROLLED SUPERCONDUCTIVITY YBa2Cu3O7 / SrTiO3 SUPERLATTICES

    SciTech Connect (OSTI)

    Garcia-Barriocanal, Javier [Universidad Complutense, Spain; Rivera-Calzada, Alberto [Universidad Complutense, Spain; Sefrioui, Z. [Universidad Complutense, Spain; Arias, D [Universidad Complutense, Spain; Varela del Arco, Maria [ORNL; Leon, C. [Universidad Complutense, Spain; Pennycook, Stephen J [ORNL; Santamaria, J. [Universidad Complutense, Spain

    2013-01-01T23:59:59.000Z

    We report on the coherent growth of ultrathin YBa2Cu3O7 (YBCO) layers on SrTiO3 (STO) in YBCO/STO superlattices. The termination plane of the STO is TiO2 and the CuO chains are missing at the interface. Disorder (steps) at the STO interface cause alterations of the stacking sequence of the intra-cell YBCO atomic layers. Stacking faults give rise to antiphase boundaries which break the continuity of the CuO2 planes and depress superconductivity. We show that superconductivity is directly controlled by interface disorder outlining the importance of pair breaking and localization by disorder in ultrathin layers.

  5. Stable n-CuInSe/sub 2/iodide-iodine photoelectrochemical cell

    DOE Patents [OSTI]

    Cahen, D.; Chen, Y.W.

    1984-09-20T23:59:59.000Z

    In a photoelectrochemical solar cell, stable output and solar efficiency in excess of 10% are achieved with a photoanode of n-CuInSe/sub 2/ electrode material and an iodine/iodide redox couple used in a liquid electrolyte. The photoanode is prepared by treating the electrode material by chemical etching, for example in Br/sub 2//MeOH; heating the etched electrode material in air or oxygen; depositing a surface film coating of indium on the electrode material after the initial heating; and thereafter again heating the electrode material in air or oxygen to oxidize the indium. The electrolyte is treated by the addition of Cu/sup +/ or Cu/sup 2 +/ salts and in In/sup 3 +/ salts.

  6. Dual-bath electrodeposition of Cu/Ni compositionally modulated multilayers

    SciTech Connect (OSTI)

    Haseeb, A.S.M.A.; Celis, J.P.; Roos, J.R. [Katholieke Univ. Leuven de Croylaan (Belgium). Dept. of Metallurgy and Materials Engineering

    1994-01-01T23:59:59.000Z

    The electrodeposition of Cu/Ni compositionally modulated multilayers with sublayer thickness in the nanometer range has been carried out. The deposition was conducted under galvanostatic conditions using dual-bath technique. The structure of the multilayers was characterized by scanning electron microscopy, and conventional and high resolution transmission electron microscopy. Cu/Ni multilayers with distinct and continuous sublayers in the range of 100 to < 5 nm can be produced by dual-bath electrodeposition. Cu and Ni sublayers grow epitaxially on top of one another. The local variation in the growth rate of copper leads to a faceted morphology of the multilayers. The extent of this faceting is reduced as the sublayer thickness is decreased. A surface reaction like oxidation during transfer of the substrate does not adversely affect the crystallographic continuity at the interfaces between sublayers. The thin-film formation is discussed based on available growth models.

  7. Study of carbon dioxide adsorption on a Cu-nitroprusside polymorph

    SciTech Connect (OSTI)

    Roque-Malherbe, R., E-mail: RRoque@suagm.ed [Institute for Physical Chemical Applied Research, School of Science, University of Turabo, P.O. Box 3030, Gurabo, PR 00778-3030 (United States); Lozano, C.; Polanco, R.; Marquez, F.; Lugo, F. [Institute for Physical Chemical Applied Research, School of Science, University of Turabo, P.O. Box 3030, Gurabo, PR 00778-3030 (United States); Hernandez-Maldonado, A.; Primera-Pedrozo, J.N. [Department of Chemical Engineering, University of Puerto Rico-Mayagueez Campus, Mayagueez, PR 00681-9000 (United States)

    2011-05-15T23:59:59.000Z

    A careful structural characterization was carried out to unequivocally determine the structure of the synthesized material. The TGA, DRIFTS and a Pawley fitting of the XRD powder profiles indicate that the hydrated and in situ dehydrated polymorph crystallizes in the orthorhombic space group Pnma. Meanwhile, the CO{sub 2} isosteric heat of adsorption appears to be independent of loading with an average value of 30 kJ/mol. This translates to a physisorption type interaction, where the adsorption energy corresponding to wall and lateral interactions are mutually compensated to produce, an apparently, homogeneous adsorption energy. The somewhat high adsorption energy is probably due to the confinement of the CO{sub 2} molecules in the nitroprusside pores. Statistical Physics and the Dubinin theory for pore volume filling allowed model the CO{sub 2} equilibrium adsorption process in Cu-nitroprusside. A DRIFTS test for the adsorbed CO{sub 2} displayed a peak at about 2338 cm{sup -1} that was assigned to a contribution due to physical adsorption of the molecule. Another peak found at 2362 cm{sup -1} evidenced that this molecule interacts with the Cu{sup 2+}, which appears to act as an electron accepting Lewis acid site. The aim of the present paper is to report a Pnma stable Cu-nitroprusside polymorph obtained by the precipitation method that can adsorb carbon dioxide. -- Graphical abstract: The adsorption space of a very well characterized Cu-nitroprusside polymorph, applying carbon dioxide as probe molecule, was studied. Display Omitted Highlights: {yields} Accurate information about the geometry of the adsorption space was provided. {yields} Truthful data about the interactions within the adsorption space was presented. {yields} The structure of the tested Cu-NP polymorph was established. {yields} Was evidenced adsorbed CO{sub 2} molecules in the form of weakly bonded adducts. {yields} Is proposed that adsorbed molecules could change the Cu-NP magnetic properties.

  8. A comparative study on shock compression of nanocrystalline Al and Cu: Shock profiles and microscopic views of plasticity

    SciTech Connect (OSTI)

    Ma, Wen; Hou, Yong [Department of Physics, College of Science, National University of Defense Technology, Changsha 410073 (China)] [Department of Physics, College of Science, National University of Defense Technology, Changsha 410073 (China); Zhu, Wenjun [National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, P.O. Box 919-111, Mianyang 621900 (China)] [National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, P.O. Box 919-111, Mianyang 621900 (China)

    2013-10-28T23:59:59.000Z

    Shock compressions of nanocrystalline (nc) metals Al and Cu with the same grain size and texture are studied by using molecular dynamics simulations. Results have revealed that the shock front of both Al and Cu can be divided into three stages: elastic, grain-boundary-mediated, and dislocation-mediated plastic deformation. The transition planes among these three stages are proven to be non-planar by two-dimensional shock response analysis, including local stress, shear, temperature, and atom configuration. The difference between shocked Al and Cu is that the rise rate of the elastic stage of Cu is slightly higher than that of Al, and that the shock-front width of Al is wider than Cu at the same loading conditions. For the plastic stage, the dislocation density of shocked Al is lower than Cu, and the contribution of grain-boundary-mediated plasticity to shock front and strain for nc Al is more pronounced than for nc Cu. These results are explained through intrinsic material properties and atomistic analysis of the plastic process. In the case of the shocked Al sample, partial dislocations, perfect dislocations, and twins are observed, but few evidence of perfect dislocations and twins are observed in the shocked Cu.

  9. REVUE DE PHYSIQUE APPLIQUE Caractrisations structurale et optique de bicouches Cd1-yZnyS/CuPc

    E-Print Network [OSTI]

    Boyer, Edmond

    O2 : F/Cd1-yZnyS/CuPc/Au) exhibit a photovoltaic effect with a weak energy conversion efficiencyZnyS/CuPc heterojunction which could be used in photovoltaic conversion. Scanning electron microscopy and X ray studies

  10. DOI: 10.1002/ente.201200009 Examining the CuMnO Spinel System as an Oxygen

    E-Print Network [OSTI]

    Azad, Abdul-Majeed

    of CO2 in the atmosphere. Among these, carbon capture and storage (CCS) is one of the most attractive to CuOCu2O and Mn2O3Mn3O4 as potential CLOU materials. [a] Prof. A.-M. Azad Department of Chemical

  11. Mass Transport Investigated with the Electrochemical and Electrogravimetric Impedance Techniques. 1. Water Transport in PPy/CuPTS Films

    E-Print Network [OSTI]

    Kwak, Juhyoun

    Mass Transport Investigated with the Electrochemical and Electrogravimetric Impedance Techniques. 1. Water Transport in PPy/CuPTS Films Haesik Yang and Juhyoun Kwak* Department of Chemistry, Korea AdVember 18, 1996X Water transport in poly(pyrrole/copper phthalocyaninetetrasulfonate) (PPy/CuPTS) films

  12. Journal of Crystal Growth 294 (2006) 231235 In situ investigation on selenization kinetics of CuIn precursor using

    E-Print Network [OSTI]

    Anderson, Timothy J.

    2006-01-01T23:59:59.000Z

    Keywords: A1. X-ray diffraction; B1. Copper indium diselenide; B3. Solar cells 1. Introduction Chalcopyrite film solar cells. The commonly used techniques for CuInSe2 layer formation are co, reaction mechanisms, and kinetics for the formation of Cu(InxGa1x)Se2 (CIGS) and its sub- ternaries (i

  13. Hole transport and doping states in epitaxial CuIn1 xGaxSe2 David J. Schroeder

    E-Print Network [OSTI]

    Rockett, Angus

    interest in renewable energy sources such as photovoltaic devices. CuIn1 xGaxSe2 CIGS /CdS hetero- junction there is no evidence of any degradation of performance in these devices.15 In light of the current belief in the Cu

  14. Magnetic properties of HITPERM ,,Fe,Co...88Zr7B4Cu1 magnets M. A. Willard,a)

    E-Print Network [OSTI]

    Laughlin, David E.

    power applications requires new bulk soft magnetic materials that 1 are capable of operating at higher magnetization that persists to the phase transformation at 980 C. Alternating current permeability experiments nanocrystalline FeSiBNbCu alloys and nanocrystalline FeMBCu M Zr, Nb, Hf, etc. alloys have been optimized

  15. Temperature dependence of magnetic behaviour in very fine grained, spark plasma sintered NiCuZn Ferrites

    E-Print Network [OSTI]

    Boyer, Edmond

    CuZn Ferrites Behzad Ahmadi,1, a) Karim Zehani,1 Martino LoBue,1 Vincent Loyau,1 and Frederic Mazaleyrat1 SATIE spark plasma sintering technique, a family of very fine grained, fully dense NiCuZn ferrites have been produced which show constant permeability up to several 10 MHz. These Ferrites can be used for filtering

  16. Correlation between corrosion performance and surface wettability in ZrTiCuNiBe bulk metallic glasses

    E-Print Network [OSTI]

    Zheng, Yufeng

    Correlation between corrosion performance and surface wettability in ZrTiCuNiBe bulk metallic June 2010 The corrosion properties of two Zr-based bulk metallic glass, Zr41Ti14Cu12Ni10Be23 LM1 and Zr potential, LM1b showed superior corrosion resistance to LM1. Under identical sample preparation and testing

  17. Effet de l'apport de phosphore, de carbonate de calcium et d'oligo-lments (Cu, Mn, Zn, B)

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Agronomie Effet de l'apport de phosphore, de carbonate de calcium et d'oligo-lments (Cu, Mn, Zn apports de phosphore, de carbonate de calcium et d'oligo-lments (Mn, Cu, Zn, B), en vue de mieux celles de B lorsqu'on lve le pH par apport de carbonate de calcium; - l'accumulation prfrentielle de

  18. Influence of oxygen on the interfacial stability of Cu on Co,,0001... thin films Hongmei Wen,1 Matthew Neurock,1,

    E-Print Network [OSTI]

    Wadley, Haydn

    Influence of oxygen on the interfacial stability of Cu on Co,,0001... thin films Hongmei Wen,1 of oxygen, which can impact the quality of film and its properties. Previously we found that oxygen to examine the effects of surface atomic oxygen on the stability of the Cu 111 /Co 0001 interface

  19. Cosponsored by CU's Renewable and Sustainable Energy Initiative and the CIRES Center for Science and Technology Policy Research

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    . monday, november 17 8:30 - 10:30 am cu-boulder, umc 235 free and open to the public This event opens a day-long Research Symposium sponsored by the CU Energy Initiative For more information see: http://ei

  20. Mechanism of Methanol Synthesis on Cu through CO2 and CO Hydrogenation

    SciTech Connect (OSTI)

    Grabow, Lars C.; Mavrikakis, Manos

    2011-03-04T23:59:59.000Z

    We present a comprehensive mean-field microkinetic model for the methanol synthesis and water-gas-shift (WGS) reactions that includes novel reaction intermediates, such as formic acid (HCOOH) and hydroxymethoxy (CH?O?) and allows for the formation of formic acid (HCOOH), formaldehyde (CH?O), and methyl formate (HCOOCH?) as byproducts. All input model parameters were initially derived from periodic, self-consistent, GGA-PW91 density functional theory calculations on the Cu(111) surface and subsequently fitted to published experimentalmethanol synthesis rate data, which were collected under realistic conditions on a commercial Cu/ZnO/Al?O? catalyst. We find that the WGS reaction follows the carboxyl (COOH)-mediated path and that both CO and CO? hydrogenation pathways are active for methanol synthesis. Under typical industrial methanol synthesis conditions, CO? hydrogenation is responsible for ?2/3 of the methanol produced. The intermediates of the CO? pathway for methanol synthesis include HCOO*, HCOOH*, CH?O?*, CH?O*, and CH?O*. The formation of formate (HCOO*) from CO?* and H* on Cu(111) does not involve an intermediate carbonate (CO?*) species, and hydrogenation of HCOO* leads to HCOOH* instead of dioxymethylene (H?CO?*). The effect of CO is not only promotional; CO* is also hydrogenated in significant amounts to HCO*, CH?O *, CH?O*, and CH?OH*. We considered two possibilities for CO promotion: (a) removal of OH* via COOH* to form CO? and hydrogen (WGS), and (b) CO-assisted hydrogenation of various surface intermediates, with HCO* being the H-donor. Only the former mechanism contributes to methanol formation, but its effect is small compared with that of direct CO hydrogenation to methanol. Overall, methanol synthesis rates are limited by methoxy (CH?O*) formation at low CO?/(CO+CO?) ratios and by CH?O* hydrogenation in CO?-rich feeds. CH?O* hydrogenation is the common slow step for both the CO and the CO? methanol synthesis routes; the relative contribution of each route is determined by their respective slow steps HCO*+H*?CH?O*+* and HCOOH*+H*?CH?O?*+* as well as by feed composition and reaction conditions. An analysis of the fitted parameters for a commercial Cu/ZnO/Al?O? catalyst suggests that a more open Cu surface, for example, Cu(110), Cu(100), and Cu(211) partially covered by oxygen, may provide a better model for the active site of methanol synthesis, but our studies cannot exclude a synergistic effect with the ZnO support.

  1. Electronic band structure imaging of three layer twisted graphene on single crystal Cu(111)

    SciTech Connect (OSTI)

    Marquez Velasco, J. [National Center for Scientific Research Demokritos, 15310 Athens (Greece) [National Center for Scientific Research Demokritos, 15310 Athens (Greece); Department of Physics, National Technical University of Athens, Athens (Greece); Kelaidis, N.; Xenogiannopoulou, E.; Tsoutsou, D.; Tsipas, P.; Speliotis, Th.; Pilatos, G.; Likodimos, V.; Falaras, P.; Dimoulas, A., E-mail: dimoulas@ims.demokritos.gr [National Center for Scientific Research Demokritos, 15310 Athens (Greece); Raptis, Y. S. [Department of Physics, National Technical University of Athens, Athens (Greece)] [Department of Physics, National Technical University of Athens, Athens (Greece)

    2013-11-18T23:59:59.000Z

    Few layer graphene (FLG) is grown on single crystal Cu(111) by Chemical Vapor Deposition, and the electronic valence band structure is imaged by Angle-Resolved Photo-Emission Spectroscopy. It is found that graphene essentially grows polycrystalline. Three nearly ideal Dirac cones are observed along the Cu ?{sup }K{sup } direction in k-space, attributed to the presence of ?4 twisted three layer graphene with negligible interlayer coupling. The number of layers and the stacking order are compatible with Raman data analysis demonstrating the complementarity of the two techniques for a more accurate characterization of FLG.

  2. Microwave characteristics of the high temperature superconductor YBa?Cu?O??[delta

    E-Print Network [OSTI]

    Skrehot, Michael Kevin

    1989-01-01T23:59:59.000Z

    and the new high temperature materials; Chapter III describes the resonant structure chosen for the surface resistance measurements; Chapter IV details the experimental procedure and gives the results; Chapter V explains why YBaCuO possesses nonlinearities... machined from a bulk sample, or made of thin fiilm coated surfaces. Zahopoulos, Kennedy, and Sridhar [18] reported results of measurements made on a structure machined of bulk YBaCuO. The cavity possessed a Q of 909 at room temperature, increasing to 10s...

  3. XPS and AES Studies of Cu/CdTe(111)-B

    SciTech Connect (OSTI)

    Teeter, G.; Gessert, T. A.; Asher, S. E.

    2005-01-01T23:59:59.000Z

    Copper is frequently used as a p-type dopant to improve the performance of back contacts in CdTe thin-film solar cells. In this study, surface-analysis techniques are used to probe fundamental interactions between Cu and the CdTe(111)-B surface. The results presented here were facilitated by the newly constructed surface-analysis cluster tool in the Measurements and Characterization Division at NREL; they reveal a host of fundamental phenomena that occur in the Cu/CdTe system.

  4. Synthesis of highly phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor

    DOE Patents [OSTI]

    Dorris, S.E.; Poeppel, R.B.; Prorok, B.C.; Lanagan, M.T.; Maroni, V.A.

    1994-10-11T23:59:59.000Z

    An article and method of manufacture of (Bi,Pb)-Sr-Ca-Cu-O superconductor are disclosed. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi,Pb)-Sr-Ca-Cu-O superconductor. 5 figs.

  5. 1st-Principles Step- and Kink-Formation Energies on Cu(111)

    SciTech Connect (OSTI)

    Feibelman, Peter J.

    1999-05-26T23:59:59.000Z

    In rough agreement with experimental values derived from Cu island shapes vs. temperature, ab-initio calculations yield formation energies of 0.27 and 0.26 eV/ step-edge-atom for (100)- and (111)-micro facet steps on Cu(lll), and 0.09 and 0.12 eV per kink in those steps. Comparison to ab-initio results for Al and Pt shows that as a rule, the average formation energy of straight steps on a close-packed metal surface equals -7% of the metal's cohesive energy.

  6. Synthesis of highly phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor

    DOE Patents [OSTI]

    Dorris, Stephen E. (La Grange Park, IL); Poeppel, Roger B. (Glen Ellyn, IL); Prorok, Barton C. (Harrisville, PA); Lanagan, Michael T. (Woodridge, IL); Maroni, Victor A. (Naperville, IL)

    1994-01-01T23:59:59.000Z

    An article and method of manufacture of (Bi,Pb)-Sr-Ca-Cu-O superconductor. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi,Pb)-Sr-Ca-Cu-O superconductor.

  7. A study of magnetic anisotropy energy in CuMn spin glass

    E-Print Network [OSTI]

    Allen, Christine Adele

    1986-01-01T23:59:59.000Z

    A STUDY OF MAGNETIC ANISOTROPY ENERGY IN CuMn SPIN GLASS A Thesis by CHRISTINE ADELE ALLEN Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1986... Major Subject: Physics A STUDY OF MAGNETIC ANISOTROPY ENERGY IN CuMn SPIN GLASS A Thesis by CHRISTINE ADELE ALLEN Approved as to style and content by: Thomas W. Adair, III (Chai man of Committee) Robert A. enefick (Member) Donald L. Parker...

  8. Semiconductor bridge, SCB, ignition studies of Al/CuO thermite

    SciTech Connect (OSTI)

    Bickes, R.W. Jr.; Wackerbarth, D.E. [Sandia National Labs., Albuquerque, NM (United States); Mohler, J.H. [Energetic Materials Associates, Inc., Vero Beach, FL (United States)

    1997-04-01T23:59:59.000Z

    The authors briefly summarize semiconductor bridge operation and review their ignition studies of Al/CuO thermite as a function of the capacitor discharge unit (CDU) firing set capacitance, charge holder material and morphology of the CuO. Ignition thresholds were obtained using a brass charge holder and a non-conducting fiber-glass-epoxy composite material, G10. At - 18 C and a charge voltage of 50V, the capacitance thresholds were 30.1 {mu}F and 2.0 {mu}F respectively. They also present new data on electrostatic discharge (ESD) and radio frequency (RF) vulnerability tests.

  9. Characterization of spin pumping effect in Permalloy/Cu/Pt microfabricated lateral devices

    SciTech Connect (OSTI)

    Yamamoto, Tatsuya, E-mail: tyamamoto@imr.tohoku.ac.jp; Seki, Takeshi; Takanashi, Koki [Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan); Ono, Shimpei [Central Research Institute of Electric Power Industry, Tokyo 201-8511 (Japan)

    2014-05-07T23:59:59.000Z

    We studied ferromagnetic resonance (FMR) for microfabricated lateral devices consisting of a Permalloy (Py) rectangular element and a Pt nano-element bridged by a Cu wire, which were located on a coplanar waveguide. A change in the resonance linewidth (?f) was observed in the FMR spectra when the distance between Py and Pt (d) was varied. For devices with d?Cu due to the spin absorption of the attached Pt.

  10. Knudsen number, ideal hydrodynamic limit for elliptic flow and QGP viscosity in $\\sqrt{s}$=62 and 200 GeV Cu+Cu/Au+Au collisions

    E-Print Network [OSTI]

    A. K. Chaudhuri

    2010-09-27T23:59:59.000Z

    Taking into account of entropy generation during evolution of a viscous fluid, we have estimated inverse Knudsen number, ideal hydrodynamic limit for elliptic flow and QGP viscosity to entropy ratio in $\\sqrt{s}$=62 and 200 GeV Cu+Cu/Au+Au collisions. Viscosity to entropy ratio is estimated as $\\eta/s=0.17\\pm 0.10\\pm 0.20$, the first error is statistical, the second one is systematic. In a central Au+Au collision, inverse Knudsen number is $\\approx 2.80\\pm 1.63$, which presumably small for complete equilibration. In peripheral collisions it is even less. Ideal hydrodynamic limit for elliptic flow is $\\sim$40% more than the experimental flow in a central collision.

  11. ZnO/Cu(InGa)Se.sub.2 solar cells prepared by vapor phase Zn doping

    SciTech Connect (OSTI)

    Ramanathan, Kannan; Hasoon, Falah S.; Asher, Sarah E.; Dolan, James; Keane, James C.

    2007-02-20T23:59:59.000Z

    A process for making a thin film ZnO/Cu(InGa)Se.sub.2 solar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Se.sub.2 layer on a metal back contact deposited on a glass substrate; heating the Cu(InGa)Se.sub.2 layer on the metal back contact on the glass substrate to a temperature range between about 100.degree. C. to about 250.degree. C.; subjecting the heated layer of Cu(InGa)Se.sub.2 to an evaporant species from a Zn compound; and sputter depositing ZnO on the Zn compound evaporant species treated layer of Cu(InGa)Se.sub.2.

  12. ZnO/Cu(InGa)Se2 solar cells prepared by vapor phase Zn doping

    DOE Patents [OSTI]

    Ramanathan, Kannan; Hasoon, Falah S.; Asher, Sarah E.; Dolan, James; Keane, James C.

    2007-02-20T23:59:59.000Z

    A process for making a thin film ZnO/Cu(InGa)Se2 solar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Se2 layer on a metal back contact deposited on a glass substrate; heating the Cu(InGa)Se2 layer on the metal back contact on the glass substrate to a temperature range between about 100.degree. C. to about 250.degree. C.; subjecting the heated layer of Cu(InGa)Se2 to an evaporant species from a Zn compound; and sputter depositing ZnO on the Zn compound evaporant species treated layer of Cu(InGa)Se2.

  13. Composition dependence of the in-plane Cu-O bond-stretching LO phonon mode in YBa2Cu3O6+x

    SciTech Connect (OSTI)

    Stercil, F. [University of Pennsylvania; Egami, T. [University of Pennsylvania; Mook Jr, Herbert A [ORNL; Yethiraj, Mohana [ORNL; Chung, J.-H. [National Institute of Standards and Technology (NIST); Arai, M. [Institute of Materials Structure Science, Japan; Frost, C. [ISIS Facility, Rutherford Appleton Laboratory; Dogan, F. [University of Washington, Seattle

    2008-01-01T23:59:59.000Z

    An inelastic pulsed neutron scattering study was performed on the dependence of the dispersion and spectral intensity of the in-plane Cu-O bond-stretching LO phonon mode on doped charge density. The measurements were made in the time-of-flight mode with the multiangle position sensitive spectrometer of the ISIS facility on single crystals of YBa{sub 2}Cu{sub 3}O{sub 6+x} (x=0.15, 0.35, 0.6, 0.7, and 0.95). The focus of the study is the in-plane Cu-O bond-stretching LO phonon mode, which is known for strong electron-phonon coupling and unusual dependence on composition and temperature. It is shown that the dispersions for the samples with x=0.35, 0.6, and 0.7 are similar to the superposition of those for x=0.15 and 0.95 samples, and cannot be explained in terms of the structural anisotropy. It is suggested that the results are consistent with the model of nanoscale electronic phase separation, with the fraction of the phases being dependent on the doped charge density.

  14. CO-NO and CO-O2 Interactions on Cu(100) between 25 and 200 K Studied with Infrared Reflection Absorption Spectroscopy

    E-Print Network [OSTI]

    Goodman, Wayne

    CO-NO and CO-O2 Interactions on Cu(100) between 25 and 200 K Studied with Infrared Reflection reflection absorption spectroscopy (IRAS) has been used to study CO-NO and CO-O2 interactions on Cu(100) between 25 and 200 K. A strong repulsive interaction between CO and NO on Cu(100) at 25 K causes tilting

  15. FeMn/Fe/Co/Cu(1,1,10) films studied using the magneto-optic Kerr effect and photoemission electron microscopy

    E-Print Network [OSTI]

    Meng, Y.

    2012-01-01T23:59:59.000Z

    B 84, 064416 (2011) FeMn/Fe/Co/Cu(1,1,10) ?lms studied usingmeasurements on FeMn/ Fe(8ML)/Co/vicinal Cu(001), in whichthe FeMn(10ML)/Fe(2ML)/Co(20ML)/Cu(1,1,10) sample growth. (

  16. Effect of the Keggin anions on assembly of Cu{sup I}-bis(tetrazole) thioether complexes containing multinuclear Cu{sup I}-cluster

    SciTech Connect (OSTI)

    Wang Xiuli, E-mail: wangxiuli@bhu.edu.cn [Department of Chemistry, Bohai University, Liaoning Province Silicon Materials Engineering Technology Research Centre, Jinzhou 121000 (China); Gao Qiang; Tian Aixiang; Hu Hailiang; Liu Guocheng [Department of Chemistry, Bohai University, Liaoning Province Silicon Materials Engineering Technology Research Centre, Jinzhou 121000 (China)

    2012-03-15T23:59:59.000Z

    In order to investigate the effect of polyoxometalate (POM) on the assembly of transition metal-bis(tetrazole) thioether complexes, three new complexes based on different Keggin anions and multinuclear Cu{sup I}-cluster [Cu{sup I}{sub 12}(bmtr){sub 9}(HSiMo{sub 12}O{sub 40}){sub 4}] (1), [Cu{sup I}{sub 3}(bmtr){sub 3}(PM{sub 12}O{sub 40})] (M=W for 2; Mo for 3) (bmtr=1,3-bis(1-methyl-5-mercapto-1,2,3,4-tetrazole)propane), have been hydrothermally synthesized and characterized by routine physical methods and single crystal X-ray diffraction. In compound 1, two kinds of nanometer-scale tetranuclear subunits linked by [SiMo{sub 12}O{sub 40}]{sup 4-} polyanions assemble a (3, 4)-connected three-dimensional (3D) self-penetrating framework. Compounds 2 and 3 are isostructural, exhibiting a 1D chain with [PW{sub 12}O{sub 40}]{sup 3-}/[PMo{sub 12}O{sub 40}]{sup 3-} polyanions and trinuclear clusters arranging alternately. The distinct structural differences between these POM-based Cu{sup I}-bmtr complexes of 1 and 2/3 maybe rest on the contrast of Keggin-type polyoxometalate with different central heteroatoms, which have been discussed in detail. In addition, the electrochemical properties of the title complexes have been investigated. - Graphical abstract: Three new complexes based on different Keggin anions and multinuclear Cu{sup I}-cluster have been synthesized under hydrothermal conditions. The Keggin polyanions with different central heteroatoms play a key role. Highlights: Black-Right-Pointing-Pointer The flexible bis(tetrazole)-based thioether ligand with some advantages have been used. Black-Right-Pointing-Pointer The effect of Keggin anions with different central heteroatoms has been discussed in detail. Black-Right-Pointing-Pointer The electrochemical behaviors and electrocatalysis property have been investigated.

  17. Enhanced Cu2S/CdS Coaxial Nanowire Solar Cells by Piezo-Phototronic Effect

    E-Print Network [OSTI]

    Wang, Zhong L.

    light on the enhanced flexible solar cells for applications in self-powered technology, environmental monitoring, and even defensive technology. KEYWORDS: Cu2S/CdS coaxial nanowire, nanowire PV devices, piezo of the PV devices. This effect offers a new concept for increasing solar energy conversion efficiency

  18. Preparation of Bi-Sr-Ca-Cu-O superconductors from oxide-glass precursors

    DOE Patents [OSTI]

    Hinks, David G. (Lemont, IL); Capone, II, Donald W. (Northbridge, MA)

    1992-01-01T23:59:59.000Z

    A superconductor and precursor therefor from oxide mixtures of Ca, Sr, Bi and Cu. Glass precursors quenched to elevated temperatures result in glass free of crystalline precipitates having enhanced mechanical properties. Superconductors are formed from the glass precursors by heating in the presence of oxygen to a temperature below the melting point of the glass.

  19. Cu2ZnSnS4 nanocrystals and graphene quantum dots for photovoltaics Xukai Xinab

    E-Print Network [OSTI]

    Lin, Zhiqun

    Cu2ZnSnS4 nanocrystals and graphene quantum dots for photovoltaics Jun Wang,a Xukai Xinab advances in the synthesis and utilization of CZTS nanocrystals and colloidal GQDs for photovoltaics emerged to achieve low cost, high perfor- mance photovoltaics, including organic solar cells,26 dye

  20. Combustion synthesis of calcium phosphate bioceramic powders A. Cu neyt Tas *,1

    E-Print Network [OSTI]

    Tas, A. Cuneyt

    Combustion synthesis of calcium phosphate bioceramic powders A. Cu neyt Tas *,1 Department)2; Combustion synthesis; Hydroxyapatite 1. Introduction Calcium hydroxyapatite (HA: Ca10(PO4)6(OH)2), the major), instead of water, as the precipitation medium. Self-propagating combustion synthesis (SPCS

  1. Elemental separation in nanocrystalline Cu-Al alloys Y. B. Wang,1

    E-Print Network [OSTI]

    Zhu, Yuntian T.

    Elemental separation in nanocrystalline Cu-Al alloys Y. B. Wang,1 X. Z. Liao,1,a) Y. H. Zhao,2 J. C. Cooley,3 Z. Horita,4 and Y. T. Zhu5,a) 1 School of Aerospace, Mechanical and Mechatronic Engineering-energy severe plastic deformation has been reported to increase the solubility of alloy systems and even to mix

  2. Effects of Cu Content and Preaging on Precipitation Characteristics in Aluminum Alloy 6022

    E-Print Network [OSTI]

    Laughlin, David E.

    Effects of Cu Content and Preaging on Precipitation Characteristics in Aluminum Alloy 6022 W and artificial aging response in aluminum alloy 6022 were investigated using transmission electron microscopy,are an important group of aluminum alloys that can be although its structure has been proposed

  3. In-situ observation of the energy dependence of defect production in Cu and Ni

    SciTech Connect (OSTI)

    King, W.E.; Merkel, K.L.; Baily, A.C.; Haga, K.; Meshii, M.

    1983-01-01T23:59:59.000Z

    The damage function, the average number of Frenkel pairs created as a function of lattice atom recoil energy, was investigated in Cu and Ni using in-situ electrical-resistivity damage-rate measurements in the high-voltage electron micrscope (HVEM) at T < 10K. Electron and proton irradiations were performed in-situ on the same polycrystalline specimens using the Argonne National Laboratory HVEM-Ion Beam Interface. Both Ni and Cu exhibit a sharp rise in the damage function above the minimum threshold energy (approx. 18 eV for Cu and approx. 20 eV for Ni) as displacements in the low-threshold energy regions of the threshold energy surface become possible. A plateau is observed for both materials (0.54 Frenkel pairs for Cu and 0.46 Frenkel pairs for Ni) indicating that no further directions become productive until much higher recoil energies. These damage functions show strong deviations from simple theoretical models, such as the Modified Kinchin-Pease damage function. The results are discussed in terms of the mechanisms of defect production that govern the single-displacement regime of the damage function and are compared with results from recent molecular-dynamics simulations.

  4. IAA-CU-13-11-06 Using independent combinations of CubeSat

    E-Print Network [OSTI]

    Gravdahl, Jan Tommy

    IAA-CU-13-11-06 Using independent combinations of CubeSat solar panels as sun sensors. Using solar panels on 5 of 6 sides of the NUTS CubeSat, we have a lot of atti- tude determinating information readily available during much of the periodical orbit. Using three or more solar panels

  5. Synthesis of YBa2CU3O7 using sub-atmospheric processing

    DOE Patents [OSTI]

    Wiesmann, Harold; Solovyov, Vyacheslav

    2004-09-21T23:59:59.000Z

    The present invention is a method of forming thick films of crystalline YBa.sub.2 Cu.sub.3 O.sub.7 that includes forming a precursor film comprising barium fluoride (BaF.sub.2), yttrium (Y) and copper (Cu). The precursor film is heat-treated at a temperature above 500.degree. C. in the presence of oxygen, nitrogen and water vapor at sub-atmospheric pressure to form a crystalline structure. The crystalline structure is then annealed at about 500.degree. C. in the presence of oxygen to form the crystalline YBa.sub.2 Cu.sub.3 O.sub.7 film. The YBa.sub.2 Cu.sub.3 O.sub.7 film formed by this method has a resistivity of from about 100 to about 600 .mu.Ohm-cm at room temperature and a critical current density measured at 77 K in a magnetic field of 1 Tesla of about 1.0.times.10.sup.5 Ampere per square centimeter (0.1 MA/cm.sup.2) or greater.

  6. Nanostructural considerations in giant magnetoresistive Co-Cu-based symmetric spin valves Harsh Deep Chopra*

    E-Print Network [OSTI]

    Chopra, Harsh Deep

    , for example, magnetic-field sensors and read-heads in data- storage devices.11 A key impedimentNanostructural considerations in giant magnetoresistive Co-Cu-based symmetric spin valves Harsh, on the nanostructure and resulting giant magnetoresistive properties of symmetric spin valves of the type Ni

  7. Selected materials development for the 100 T magnet: Cu-Nb conductors with

    E-Print Network [OSTI]

    Weston, Ken

    Selected materials development for the 100 T magnet: Cu-Nb conductors with nanocomposite components (PBO) based composite for reinforcement Materials R&D for the 100-Tesla Pulsed Magnet Gregory S for this achievement was the long-term and painstaking research and development of high strength materials

  8. Theoretical description of the high-temperature phase of YbInCu4 and

    E-Print Network [OSTI]

    Freericks, Jim

    ; doping with Y reduces TV and sharpens the transition. Data from C.D. Immer et al. PRB 56, 71 (1997 al PRB 56, 71 (1997). When comparing the magnetic field effects for a variety of materials. Data from C. D. Immer et al PRB 56, 71 (1997). #12;Optical conductivity in YbInCu4 The optical

  9. Electrodeposition of CuGaSe2 from Thiocyanate-Containing Electrolytes

    E-Print Network [OSTI]

    Suni, Ian Ivar

    . Manuscript received September 8, 2010. Published December 2, 2010. CuInxGa1-xSe2 CIGS thin film solar cells- nation velocities.1 Thin film solar cells promise significant economic benefits, because the optical, electrochemical deposition methods may be significantly less expensive for scale-up of thin film solar cells,3

  10. Diffusion of indium and gallium in Cu(In,Ga)Se2 thin film solar cells

    E-Print Network [OSTI]

    Rockett, Angus

    conversion efficiency of solar cells made from this material [1]. One of the special qualities of the CIGS improve the solar cell performance. In many of the different CIGS fabrication techniques, an in depthDiffusion of indium and gallium in Cu(In,Ga)Se2 thin film solar cells O. Lundberga,*, J. Lua , A

  11. Calculation of vibrational spectra of an icosahedral quasicrystal AlCuFe

    SciTech Connect (OSTI)

    Rudenko, A. N., E-mail: ran@infoteck.ru; Mazurenko, V. G. [Ural State University (Russian Federation)

    2007-11-15T23:59:59.000Z

    Vibrational spectra of an icosahedral quasicrystal AlCuFe have been calculated on the basis of a crystalline 1/1 approximant by the recurrence method. To describe the interaction of atoms in a quasicrystal, the semiempirical EAM model was used. It is shown that the calculated spectra are in satisfactory agreement with the experimental neutron inelastic scattering data.

  12. Electronic and structural properties at the interface between iron-phthalocyanine and Cu(110)

    SciTech Connect (OSTI)

    Hu, Fang [Department of Physics, Zhejiang University, Hangzhou 310027 (China) [Department of Physics, Zhejiang University, Hangzhou 310027 (China); Fundamental Department, Ningbo Institute of Technology, Ningbo 315100 (China); Mao, Hongying [Department of Physics, Hangzhou Normal University, Hangzhou 310036 (China)] [Department of Physics, Hangzhou Normal University, Hangzhou 310036 (China); Zhang, Hanjie; Wu, Ke; Cai, Yiliang; He, Pimo, E-mail: phypmhe@zju.edu.cn [Department of Physics, Zhejiang University, Hangzhou 310027 (China)] [Department of Physics, Zhejiang University, Hangzhou 310027 (China)

    2014-03-07T23:59:59.000Z

    Electronic structure and adsorption geometry of Iron-Phthalocyanine (FePc) adsorbed on Cu(110) were investigated by using ultraviolet photoelectron spectroscopy (UPS) and first-principles density functional theory (DFT) calculations. The emission features ?, ?, ?, and ? originating from the FePc molecules in UPS spectra are located at 3.42, 5.04, 7.36, and 10.28 eV below Fermi level. The feature ? is mostly deriving from Fe 3d orbital with some contributions from C 2p orbital. A considerable charge transfer from the Cu substrate to the Fe 3d orbital occurs upon the adsorption of FePc molecules. The angle-resolved UPS measurements indicate that FePc molecules adopt lying-down configurations with their molecular plane nearly parallel to the Cu(110) substrate at monolayer stage. In combination with the DFT calculations, the adsorption structure is determined to be that FePc molecule adsorbs on the top site of Cu(110) with an angle of 45 between the lobes of FePc and the [11{sup }0] azimuth of the substrate.

  13. Synthesis and Evaluation of Cu/SAPO-34 Catalysts for NH3-SCR...

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

    of CuSAPO-34 Catalysts for NH3-SCR 2: Solid-state Ion Exchange and One-pot Synthesis."Applied Catalysis. B, Environmental 162:501-514. doi:10.1016j.apcatb.2014.07.029 Authors:...

  14. Production of Cu-Al-Ni Shape Memory Alloys by Mechanical Alloy

    SciTech Connect (OSTI)

    Goegebakan, Musa; Soguksu, Ali Kemal; Uzun, Orhan; Dogan, Ali [Department of Physics, Faculty of Art and Science, Kahramanmaras Sutcu Imam University, Kahramanmaras, 46000 (Turkey); Department of Physics, Faculty of Art and Science, GaziOsmanpasa University, Tokat (Turkey)

    2007-04-23T23:59:59.000Z

    The mechanical alloying technique has been used to produce shape memory Cu83Al13Ni4 alloy. The structure and thermal properties were examined by using scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). The morphology of the surface suggests the presence of martensite.

  15. Analysis, manufacture and characterization of Ni/Cu functionally graded structures Wilfredo Montealegre Rubio a,

    E-Print Network [OSTI]

    Paulino, Glaucio H.

    Cu FGSs are manufactured by using spark plasma sintering technique. Hardness and Young's modulus are found plasma sintering A. Nickel/copper gradation a b s t r a c t In this work, an experimental and numerical Accepted 20 April 2012 Available online 26 April 2012 Keywords: A. Functionally graded structures C. Spark

  16. Cu-Catalyzed Arylation of Phenols: Synthesis of Sterically Hindered and Heteroaryl Diaryl Ethers

    E-Print Network [OSTI]

    Maiti, Debabrata

    Cu-catalyzed O-arylation of phenols with aryl iodides and bromides can be performed under mild condition in DMSO/K3PO4 with use of picolinic acid as the ligand for copper. This method tolerates a variety of functional ...

  17. Possible Origin of Improved High Temperature Performance of Hydrothermally Aged Cu/Beta Zeolite Catalysts

    SciTech Connect (OSTI)

    Peden, Charles HF; Kwak, Ja Hun; Burton, Sarah D.; Tonkyn, Russell G.; Kim, Do Heui; Lee, Jong H.; Jen, H. W.; Cavattaio, Giovanni; Cheng, Yisun; Lambert, Christine

    2012-04-30T23:59:59.000Z

    The hydrothermal stability of Cu/beta NH3 SCR catalysts are explored here. In particular, this paper focuses on the interesting ability of this catalyst to maintain and even enhance high-temperature performance for the "standard" SCR reaction after modest (900 C, 2 hours) hydrothermal aging. Characterization of the fresh and aged catalysts was performed with an aim to identify possible catalytic phases responsible for the enhanced high temperature performance. XRD, TEM and 27Al NMR all showed that the hydrothermally aging conditions used here resulted in almost complete loss of the beta zeolite structure between 1 and 2 hours aging. While the 27Al NMR spectra of 2 and 10 hour hydrothermally-aged catalysts showed significant loss of a peak associated with tetrahedrally-coordinated Al species, no new spectral features were evident. Two model catalysts, suggested by these characterization data as possible mimics of the catalytic phase formed during hydrothermal aging of Cu/beta, were prepared and tested for their performance in the "standard" SCR and NH3 oxidation reactions. The similarity in their reactivity compared to the 2 hour hydrothermally-aged Cu/beta catalyst suggests possible routes for preparing multi-component catalysts that may have wider temperature windows for optimum performance than those provided by current Cu/zeolite catalysts.

  18. Magnetotransport properties of doped RuSr2GdCu2O8

    E-Print Network [OSTI]

    McCrone, J E; Tallon, J L; Cooper, J R; MacLaughlin, A C; Attfield, J. Paul; Bernhard, C

    2003-01-01T23:59:59.000Z

    RuSr2GdCu2O8, in which magnetic order and superconductivity coexist with Tmag>Tc , is a complex material which poses new and important questions to our understanding of the interplay between magnetic and superconducting order. Resistivity, Hall...

  19. Polarized Luminescence of Defects in CuGaSe2 Susanne Siebentritt1,2

    E-Print Network [OSTI]

    Rockett, Angus

    ). But for the whole group of I-III-VI2 chalcopyrite semiconductors no reliable identification of native defects by ESR been found in CuInSe2. [14] In the effort of relating the energy positions of the defects to defect. Res. Soc. Symp. Proc. Vol. 1012 2007 Materials Research Society 1012-Y13-01 #12;the experiment

  20. Evolution of Graphene Growth on Ni and Cu by Carbon Isotope Labeling

    E-Print Network [OSTI]

    Evolution of Graphene Growth on Ni and Cu by Carbon Isotope Labeling Xuesong Li, Weiwei Cai, Luigi Instruments Incorporated, Dallas, Texas 75243 Received August 3, 2009 ABSTRACT Large-area graphene growth) of hydrocarbons has shown some promise in growing large-area graphene or few-layer graphene films on metal

  1. Synthesis, crystal and electronic structure, and physical properties of the new lanthanum copper telluride La{sub 3}Cu{sub 5}Te{sub 7}

    SciTech Connect (OSTI)

    Zelinska, Mariya; Assoud, Abdeljalil [Department of Chemistry, University of Waterloo, Waterloo, ON, Canada N2L 3G1 (Canada); Kleinke, Holger, E-mail: kleinke@uwaterloo.c [Department of Chemistry, University of Waterloo, Waterloo, ON, Canada N2L 3G1 (Canada)

    2011-03-15T23:59:59.000Z

    The new lanthanum copper telluride La{sub 3}Cu{sub 5-x}Te{sub 7} has been obtained by annealing the elements at 1073 K. Single-crystal X-ray diffraction studies revealed that the title compound crystallizes in a new structure type, space group Pnma (no. 62) with lattice dimensions of a=8.2326(3) A, b=25.9466(9) A, c=7.3402(3) A, V=1567.9(1) A{sup 3}, Z=4 for La{sub 3}Cu{sub 4.86(4)}Te{sub 7}. The structure of La{sub 3}Cu{sub 5-x}Te{sub 7} is remarkably complex. The Cu and Te atoms build up a three-dimensional covalent network. The coordination polyhedra include trigonal LaTe{sub 6} prisms, capped trigonal LaTe{sub 7} prisms, CuTe{sub 4} tetrahedra, and CuTe{sub 3} pyramids. All Cu sites exhibit deficiencies of various extents. Electrical property measurements on a sintered pellet of La{sub 3}Cu{sub 4.86}Te{sub 7} indicate that it is a p-type semiconductor in accordance with the electronic structure calculations. -- Graphical abstract: Oligomeric unit comprising interconnected CuTe{sub 3} pyramids and CuTe{sub 4} tetrahedra. Display Omitted Research highlights: {yields} La{sub 3}Cu{sub 5-x}Te{sub 7} adopts a new structure type. {yields} All Cu sites exhibit deficiencies of various extents. {yields} The coordination polyhedra include trigonal LaTe{sub 6} prisms, capped trigonal LaTe{sub 7} prisms, CuTe{sub 4} tetrahedra and CuTe{sub 3} pyramids. {yields} La{sub 3}Cu{sub 5-x}Te{sub 7} is a p-type semiconductor.

  2. Grain growth behavior of Pb-Cu-Te cable sheathing alloys

    SciTech Connect (OSTI)

    Sahay, S.S.; Guruswamy, S. [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Metallurgical Engineering] [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Metallurgical Engineering; Goodwin, F. [International Lead Zinc Research Organization, Research Triangle Park, NC (United States)] [International Lead Zinc Research Organization, Research Triangle Park, NC (United States)

    1995-04-01T23:59:59.000Z

    Lead alloys are extensively used as sheathing material for power and telecommunication cables. Excellent extrusion properties, high ductility, extremely low recrystallization temperature, good fatigue and creep resistance, make these alloys ideal for cable sheathing application. Though the thickness of the lead sheath is only a few hundred {mu}m, it is a critical component of the cable. The lead layer in the cable is often the limiting factor both during the cable production and during its service phase. Up to several hundred miles of long single piece cables may be required for underground and underwater cables. Cracking in the lead sheath during the cable sheathing extrusion limits the production of such long cables while cracking of the lead sheath due to repeated vibration, creep and recrystallization limits the service life of these cables. The purpose of the present research is to increase the duration of cable extrusion time without compromising sheath integrity by minimizing deleterious precipitate formation and growth. Concentrations of Cu and Te in the commercial alloy are too small to contribute to precipitation strengthening. Therefore their positive influence on mechanical strength should mainly result from the influence of Cu and Te in solution on interdiffusivity and grain boundary mobility. The formation of large precipitates observed in Pb-Cu-Te alloys can be minimized and extrusion times increased without negatively affecting mechanical properties if the solute content is reduced to near solid solubility levels. In order to examine the effect of lowering solute content on microstructural stability and mechanical properties, compressive stress-strain behavior of a Pb-50 wt ppm Cu-100 wt ppm Te alloy with solute contents close to the solubility limits and a Pb-400 wt ppm Cu-400 wt ppm Te alloy was examined at room temperature. The grain growth kinetics in these alloys were studied in a temperature range of 100 to 225 C.

  3. Composition and grain size effects on the structural and mechanical properties of CuZr nanoglasses

    SciTech Connect (OSTI)

    Adibi, Sara [Institute of High Performance Computing, A*STAR, 138632 Singapore (Singapore); Mechanical Engineering Department, National University of Singapore, 117576 Singapore (Singapore); Branicio, Paulo S., E-mail: branicio@ihpc.a-star.edu.sg; Zhang, Yong-Wei [Institute of High Performance Computing, A*STAR, 138632 Singapore (Singapore); Joshi, Shailendra P., E-mail: Shailendra@nus.edu.sg [Mechanical Engineering Department, National University of Singapore, 117576 Singapore (Singapore)

    2014-07-28T23:59:59.000Z

    Nanoglasses (NGs), metallic glasses (MGs) with a nanoscale grain structure, have the potential to considerably increase the ductility of traditional MGs while retaining their outstanding mechanical properties. We investigated the effects of composition on the structural and mechanical properties of CuZr NG films with grain sizes between 3 to 15?nm using molecular dynamics simulations. Results indicate a transition from localized shear banding to homogeneous superplastic flow with decreasing grain size, although the critical average grain size depends on composition: 5?nm for Cu{sub 36}Zr{sub 64} and 3?nm for Cu{sub 64}Zr{sub 36}. The flow stress of the superplastic NG at different compositions follows the trend of the yield stress of the parent MG, i.e., Cu{sub 36}Zr{sub 64} yield/flow stress: 2.54?GPa/1.29?GPa and Cu{sub 64}Zr{sub 36} yield/flow stress: 3.57?GPa /1.58?GPa. Structural analysis indicates that the differences in mechanical behavior as a function of composition are rooted at the distinct statistics of prominent atomic Voronoi polyhedra. The mechanical behavior of NGs is also affected by the grain boundary thickness and the fraction of atoms at interfaces for a given average grain size. The results suggest that the composition dependence of the mechanical behavior of NGs follows that of their parent MGs, e.g., a stronger MG will generate a stronger NG, while the intrinsic tendency for homogeneous deformation occurring at small grain size is not affected by composition.

  4. Synthesis and Evaluation of Cu/SAPO-34 Catalysts for NH3-SCR 2: Solid-state Ion Exchange and One-pot Synthesis

    SciTech Connect (OSTI)

    Gao, Feng; Walter, Eric D.; Washton, Nancy M.; Szanyi, Janos; Peden, Charles HF

    2015-01-01T23:59:59.000Z

    Cu-SAPO-34 catalysts are synthesized using two methods: solid-state ion exchange (SSIE) and one-pot synthesis. SSIE is conducted by calcining SAPO-34/CuO mixtures at elevated temperatures. For the one-pot synthesis method, Cu-containing chemicals (CuO and CuSO4) are added during gel preparation. A high-temperature calcination step is also needed for this method. Catalysts are characterized with surface area/pore volume measurements, temperature programmed reduction (TPR), electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR) spectroscopies, and scanning electron microscopy (SEM). Catalytic properties are examined using standard ammonia selective catalytic reduction (NH3-SCR) and ammonia oxidation reactions. In Cu-SAPO-34 samples formed using SSIE, Cu presents both as isolated Cu2+ ions and unreacted CuO. The former is highly active and selective in NH3-SCR, while the latter catalyzes a side reaction; notably, the non-selective oxidation of NH3 above 350 C. Using the one-pot method followed by a high-temperature aging treatment, it is possible to form Cu SAPO-34 samples with predominately isolated Cu2+ ions at low Cu loadings. However at much higher Cu loadings, isolated Cu2+ ions that bind weakly with the CHA framework and CuO clusters also form. These Cu moieties are very active in catalyzing non-selective NH3 oxidation above 350 C. Low-temperature reaction kinetics indicate that Cu-SAPO-34 samples formed using SSIE have core-shell structures where Cu is enriched in the shell layers; while Cu is more evenly distributed within the one-pot samples. Reaction kinetics also suggest that at low temperatures, the local environment next to Cu2+ ion centers plays little role on the overall catalytic properties. The authors gratefully acknowledge the US Department of Energy (DOE), Energy Efficiency and Renewable Energy, Vehicle Technologies Office for the support of this work. The research described in this paper was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOEs Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). PNNL is operated for the US DOE by Battelle under contract number DE-AC05-76RL01830. The authors also thank Shari Li (PNNL) for surface area/pore volume measurements, and Bruce W. Arey (PNNL) for SEM measurements. Discussions with Drs. A. Yezerets, K. Kamasamudram, J.H. Li, N. Currier and J.Y. Luo from Cummins, Inc. and H.Y. Chen and H. Hess from Johnson-Matthey are greatly appreciated.

  5. Electrodeposition, characterization and morphological investigations of NiFe/Cu multilayers prepared by pulsed galvanostatic, dual bath technique

    SciTech Connect (OSTI)

    Esmaili, S., E-mail: esmaili@shiraz.ac.ir [Department of Material Science and Engineering, Shiraz University, Shiraz (Iran, Islamic Republic of); Bahrololoom, M.E. [Department of Material Science and Engineering, Shiraz University, Shiraz (Iran, Islamic Republic of); Kavanagh, K.L. [Department of Physics, Simon Fraser University, Burnaby, British Colombia (Canada)

    2011-02-15T23:59:59.000Z

    NiFe/Cu multilayers were grown sequentially by pulsed electrodeposition on copper (Cu) substrates. The layers were prepared in galvanostatic mode using a dual bath technique. The morphology, thickness, roughness and composition of the layers were studied using scanning electron microscopy, scanning transmission electron microscopy with energy dispersive X-ray spectroscopy, X-ray diffraction and atomic force microscopy. Analysis showed that the resulting multilayers were continuous layers with a root mean square roughness of 30 nm and a grain size of 20-60 nm. The Cu substrate and the electrodeposited Cu layer were preferentially (200) oriented while the NiFe layers were polycrystalline but with a preferred (200) texture. The thinnest multilayers produced were 20/40, NiFe/Cu, respectively. - Research Highlights: {yields} Thin MLs of Cu and Py can be ED utilizing a pulsed-galvanostatic, DBT. {yields} The resulting multilayers were continuous layers with an rms of 30 nm. {yields} The smallest average thickness achieved by DBT was 40 nm/20 nm for Cu/NiFe.

  6. Pulse studies to decipher the role of surface morphology in CuO/CeO? nanocatalysts for the water gas shift reaction

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

    Rodriguez, Jose A. [Brookhaven National Lab. (BNL), Upton, NY (United States); Zhao, Fuzhen [South-Central Univ. for Nationalities, Wuhan, Hubei (China); Brookhaven National Lab., Upton, NY (United States); Liu, Zongyuan [Brookhaven National Lab. (BNL), Upton, NY (United States); Xu, Wenqian [Brookhaven National Lab. (BNL), Upton, NY (United States); Yao, Siyu [Brookhaven National Lab. (BNL), Upton, NY (United States); Si, Rui [Brookhaven National Lab. (BNL), Upton, NY (United States); Johnston-Peck, Aaron C. [Brookhaven National Lab. (BNL), Upton, NY (United States); Martinez-Arias, Arturo [Inst. de Catalisis y Petroleoquimica, Consejo Superior de Investigaciones Cientificas, Madrid (Spain); Hanson, Jonathan C. [Brookhaven National Lab. (BNL), Upton, NY (United States); Senanayake, Sanjaya D. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-03-01T23:59:59.000Z

    The water-gas shift reaction (WGS, CO + H?O ? CO?) was studied over CuO/CeO? catalysts with two different ceria particle morphohologies, in the form of nanospheres (ns) and nanocubes (nc). To understand the strong dependence of the WGS reaction activity on the ceria nanoshapes, pulses of CO (without and with water vapor) were employed during in situ X-ray diffraction (XRD) and X-ray absoprtion near edge structure (XANES) measurements done to characterize the catalysts. The results showed that CuO/CeO? (ns) exhibited a substantially better activity than CuO/CeO? (nc). The higher activity was associated with the unique properties of CuO/CeO? (ns), such as the easier reduction of highly dispersed CuO to metallic Cu, the stability of metallic Cu and a larger concentration Ce? in CeO? (ns).

  7. Pulse studies to decipher the role of surface morphology in CuO/CeO? nanocatalysts for the water gas shift reaction

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

    Rodriguez, Jose A.; Zhao, Fuzhen; Liu, Zongyuan; Xu, Wenqian; Yao, Siyu; Si, Rui; Johnston-Peck, Aaron C.; Martinez-Arias, Arturo; Hanson, Jonathan C.; Senanayake, Sanjaya D.

    2015-03-01T23:59:59.000Z

    The water-gas shift reaction (WGS, CO + H?O ? CO?) was studied over CuO/CeO? catalysts with two different ceria particle morphohologies, in the form of nanospheres (ns) and nanocubes (nc). To understand the strong dependence of the WGS reaction activity on the ceria nanoshapes, pulses of CO (without and with water vapor) were employed during in situ X-ray diffraction (XRD) and X-ray absoprtion near edge structure (XANES) measurements done to characterize the catalysts. The results showed that CuO/CeO? (ns) exhibited a substantially better activity than CuO/CeO? (nc). The higher activity was associated with the unique properties of CuO/CeO? (ns), suchmoreas the easier reduction of highly dispersed CuO to metallic Cu, the stability of metallic Cu and a larger concentration Ce? in CeO? (ns).less

  8. Method for preparation of textured YBa.sub.2 Cu.sub.3 O.sub.x superconductor

    DOE Patents [OSTI]

    Selvamanickam, Venkat (Guilderland, NY); Goyal, Amit (Knoxville, TN); Kroeger, Donald M. (Knoxville, TN)

    1998-01-01T23:59:59.000Z

    The present invention relate to textured YBa.sub.2 Cu.sub.3 O.sub.x (Y-123) superconductors and a process of preparing them by directional recrystallization of compacts fabricated from quenched YBCO powders at temperatures about 100.degree. C. below the peritectic temperature to provide a superconductor where more than 75% of the YBa.sub.2 Cu.sub.3 O.sub.x phase is obtained without any Y.sub.2 BaCuO.sub.5 .

  9. Devitrification kinetics and phase selection mechanisms in Cu-Zr metallic glasses

    SciTech Connect (OSTI)

    Kalay, Ilkay

    2010-12-15T23:59:59.000Z

    Metallic glasses have been a promising class of materials since their discovery in the 1960s. Indeed, remarkable chemical, mechanical and physical properties have attracted considerable attention, and several excellent reviews are available. Moreover, the special group of glass forming alloys known as the bulk metallic glasses (BMG) become amorphous solids even at relatively low cooling rates, allowing them to be cast in large cross sections, opening the scope of potential applications to include bulk forms and net shape structural applications. Recent studies have been reported for new bulk metallic glasses produced with lower cooling rates, from 0.1 to several hundred K/s. Some of the application products of BMGs include sporting goods, high performance springs and medical devices. Several rapid solidification techniques, including melt-spinning, atomization and surface melting have been developed to produce amorphous alloys. The aim of all these methods is to solidify the liquid phase rapidly enough to suppress the nucleation and growth of crystalline phases. Furthermore, the production of amorphous/crystalline composite (ACC) materials by partial crystallization of amorphous precursor has recently given rise to materials that provide better mechanical and magnetic properties than the monolithic amorphous or crystalline alloys. In addition, these advances illustrate the broad untapped potential of using the glassy state as an intermediate stage in the processing of new materials and nanostructures. These advances underlie the necessity of investigations on prediction and control of phase stability and microstructural dynamics during both solidification and devitrification processes. This research presented in this dissertation is mainly focused on Cu-Zr and Cu-Zr-Al alloy systems. The Cu-Zr binary system has high glass forming ability in a wide compositional range (35-70 at.% Cu). Thereby, Cu-Zr based alloys have attracted much attention according to fundamental research on the behaviors of glass forming alloys. Further motivation arising from the application of this system as a basis for many BMGs and ACC materials; the Cu-Zr system warrants this attention and offers great potential for the development of new materials. However, the prediction and control of microstructural evolution during devitrification remains challenging because of the complex devitrification behavior of the Cu-Zr binary alloy which is arising from the competition of metastable and stable phases and diversity of crystal structures. This dissertation details a systematic fundamental investigation into the mechanisms and kinetics of the various crystallization transformation processes involved in the overall devitrification response of Cu-Zr and Cu-Zr-Al glasses. Various isothermal and nonisothermal treatments are employed, and the structural response is characterized using bulk X-ray and thermal analysis methods as well as nanoscale microscopic analysis methods, revealing structural and chemical details down to the atomic-scale. By carefully combining techniques such as differential scanning calorimetry (DSC), in-situ synchrotron high energy X-ray diffraction (HEXRD), and transmission electron microscopy (TEM) to quantify the characterization transformations, this research has uncovered numerous details concerning the atomistic mechanisms of crystallization and has provided much new understanding related to the dominant phases, the overall reaction sequences, and the rate-controlling mechanisms. As such this work represents a substantial step forward in understanding these transformations and provides a clear framework for further progress toward ultimate application of controlled devitrification processing for the production of new materials with remarkable properties.

  10. Charged and strange hadron elliptic flow in Cu+Cu collisions at sqrt sNN = 62.4 and 200 GeV

    SciTech Connect (OSTI)

    STAR Collaboration; Abelev, Betty

    2010-07-05T23:59:59.000Z

    We present the results of an elliptic flow, v{sub 2}, analysis of Cu+Cu collisions recorded with the STAR detector at RHIC at {radical}s{sub NN} = 62.4 and 200 GeV. Elliptic flow as a function of transverse momentum, v{sub 2}(p{sub T}), is reported for different collision centralities for charged hadrons h{sup {+-}}, and strangeness containing hadrons K{sub S}{sup 0}, {Lambda}, {Xi}, {phi} in the midrapidity region |{eta}| < 1.0. Significant reduction in systematic uncertainty of the measurement due to non-flow effects has been achieved by correlating particles at midrapidity, |{eta}| < 1.0, with those at forward rapidity, 2.5 < |{eta}| < 4.0. We also present azimuthal correlations in p+p collisions at {radical}s = 200 GeV to help estimating non-flow effects. To study the system-size dependence of elliptic flow, we present a detailed comparison with previously published results from Au+Au collisions at {radical}s{sub NN} = 200 GeV. We observe that v{sub 2}(p{sub T}) of strange hadrons has similar scaling properties as were first observed in Au+Au collisions, i.e.: (i) at low transverse momenta, p{sub T} < 2 GeV/c, v{sub 2} scales with transverse kinetic energy, m{sub T} - m, and (ii) at intermediate p{sub T}, 2 < p{sub T} < 4 GeV/c, it scales with the number of constituent quarks, n{sub q}. We have found that ideal hydrodynamic calculations fail to reproduce the centrality dependence of v{sub 2}(p{sub T}) for K{sub S}{sup 0} and {Lambda}. Eccentricity scaled v{sub 2} values, v{sub 2}/{var_epsilon}, are larger in more central collisions, suggesting stronger collective flow develops in more central collisions. The comparison with Au+Au collisions which go further in density shows v{sub 2}/{var_epsilon} depend on the system size, number of participants N{sub part}. This indicates that the ideal hydrodynamic limit is not reached in Cu+Cu collisions, presumably because the assumption of thermalization is not attained.

  11. Pressure dependence of the superconducting critical temperature of HgBa 2Ca 2Cu 3O 8 y and HgBa 2Ca 3Cu 4O 10 y up to 30 GPa

    E-Print Network [OSTI]

    Wijngaarden, Rinke J.

    Pressure dependence of the superconducting critical temperature of HgBa 2Ca 2Cu 3O 8 y and HgBa 2Ca of the reported pressure- induced Tc values well above 150 K in the mercury-based high-Tc superconductors has been superconducting transition temperature Tc have been observed in HgBa2Ca2Cu3O8 y Hg-1223 samples under very high

  12. Nuclear matter effects on J/? production in asymmetric Cu+Au collisions at ?SNN=200 GeV

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

    Adare, A.

    2014-12-01T23:59:59.000Z

    We report on J/? production from asymmetric Cu+Au heavy-ion collisions at ?sNN =200 GeV at the Relativistic Heavy Ion Collider at both forward (Cu-going direction) and backward (Au-going direction) rapidities. The nuclear modification of J/? yields in Cu+Au collisions in the Au-going direction is found to be comparable to that in Au+Au collisions when plotted as a function of the number of participating nucleons. In the Cu-going direction, J/? production shows a stronger suppression. This difference is comparable in magnitude and has the same sign as the difference expected from shadowing effects due to stronger low-x gluon suppression in themorelarger Au nucleus. The relative suppression is opposite to that expected from hot nuclear matter dissociation, since a higher energy density is expected in the Au-going direction.less

  13. De novo design and spectroscopic characterization of Cu(II)-binding peptides based upon the blue copper protein plastocyanin

    E-Print Network [OSTI]

    Daugherty, Roxanne Gail

    2002-01-01T23:59:59.000Z

    those spectroscopic properties. Most blue copper proteins are similar to either plastocyanin or azurin, the best characterized of the blue copper proteins. All blue copper proteins contain a coordination site where Cu(II) is bound in a trigonal plane...

  14. A SchOlARShiPinvest in a brighter future cuRiOuS miNdS

    E-Print Network [OSTI]

    the darwin lNg plant to view operations and attended the 2009 enterprising women event where i networked, western Australia's Browse Basin, and the Australia Pacific lNg Project in Queensland. 2_cuRTiN Sch

  15. Hardness variation and cyclic crystalline-amorphous phase transformation in CuZr alloy during ball milling

    E-Print Network [OSTI]

    Schoen, David Taylor

    2005-01-01T23:59:59.000Z

    The hardness and percent crystallinity of Cu33Zr67 powder samples are measured through several cycles of a cyclic phase transformation during ball milling. Each are found to cycle with a period of approximately 320 minutes. ...

  16. Systematic study of the Taylor method for production of cu-based shape memory alloy microwires : a master's thesis

    E-Print Network [OSTI]

    Szablinski, Eric (Eric Allen)

    2012-01-01T23:59:59.000Z

    The Taylor method is a proven way to produce Cu-based shape memory microwires that aren't plagued by problems typical in polycrystalline copper SMAs produced by other methods. Here we set out to expand and refine this ...

  17. Millimeter size single crystals of superconducting YBa[sub 2]Cu[sub 3]O[sub x

    DOE Patents [OSTI]

    Damento, M.A.; Gschneidner, K.A. Jr.

    1989-04-25T23:59:59.000Z

    A method of growing large, up to 1 mm size single crystals of superconducting YBa[sub 2]Cu[sub 3]O[sub x], wherein x equals from 6.5 to 7.2 is disclosed.

  18. Three approaches to economical photovoltaics: conformal Cu2S, organic luminescent films, and PbSe nanocrystal superlattices

    E-Print Network [OSTI]

    Carbone, Ian Anthony

    2013-01-01T23:59:59.000Z

    Degradation in CDS-Cu2S photovoltaic cells. Semiconductorcell with cuins2: A photovoltaic cell concept using an ex-and the the photovoltaic action in solar cell devices. The

  19. (n,n?[gamma]) reactions in 6?3?,?6?5?Cu and background in 0[nu] [beta] [beta] experiments

    E-Print Network [OSTI]

    Perepelitsa, Dennis V

    2008-01-01T23:59:59.000Z

    Measurements of (n, xn?[gamma]) reactions in Cu are important for understanding neutroninduced background for certain underground double beta decay experiments. Neutroninduced gammas are a contribution to background for ...

  20. Low contact resistivity of metals on nitrogen-doped cuprous oxide (Cu 2O) thin-films

    E-Print Network [OSTI]

    Siah, Sin Cheng

    Forming low-resistivity contacts on cuprous oxide (Cu[subscript 2]O) is an essential step toward demonstrating its suitability as a candidate solar cell material. We measure the contact resistivity of three noble metals ...