Sample records for odum president shell

  1. Presidentís Message

    E-Print Network [OSTI]

    Lim, Ingrid

    2009-01-01T23:59:59.000Z

    Academy of Emergency Medicine Presidentís Message INSIDE:Presidentís Message (continued) I Lim Perspective on

  2. Mineral resource assessment: Compliance between Emergy1 and Exergy respecting Odum's hierarchy concept2

    E-Print Network [OSTI]

    Boyer, Edmond

    Mineral resource assessment: Compliance between Emergy1 and Exergy respecting Odum's hierarchy mineral resources, taking into account their abundance, their8 chemical and physical properties of mineral, dispersed in the Earth's10 crust, is a co-product of the latter. The specic emergies of dispersed

  3. President's Message

    E-Print Network [OSTI]

    Lim, Ingrid

    2010-01-01T23:59:59.000Z

    Medicine PRESIDENTíS MESSAGE February 2010 ďChildren areINSIDE: Presidentís Message (continued) I Lim Roadblock toon page 2 Presidentís Message Virtual Mentoring Program,

  4. President's Message

    E-Print Network [OSTI]

    Rodriguez, Robert M

    2008-01-01T23:59:59.000Z

    IX, No. 2 : May 2008 Presidentís Message This being myfinal presidentís message for WestJEM, I would like to

  5. President's Message

    E-Print Network [OSTI]

    Rodriguez, Robert M

    2007-01-01T23:59:59.000Z

    2007 Page 63 Presidentís Message Before laying out my briefbombarded with a singular message presented by moneyed, non-coupled with our sincere message of physician autonomy and

  6. Presidentís Message Ė Passing the Baton

    E-Print Network [OSTI]

    Swadron, Stuart P

    2009-01-01T23:59:59.000Z

    of Emergency Medicine Presidentís Message Passing the BatonINSIDE: Presidentís Message (continued) S Swadron OpenApplication I n my last message as president of CAL/AAEM, I

  7. President's Message September 2010

    E-Print Network [OSTI]

    Potts, Brian

    2010-01-01T23:59:59.000Z

    of Emergency Medicine PRESIDENTíS MESSAGE September 2010INSIDE: Presidentís Message (continued) B Potts Ultrasound Mon page 2 Presidentís Message aware of activities and

  8. President's Message July 2011

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    Academy of Emergency Medicine Presidentís Message July 2011INSIDE: Presidentís Message (continued) T Mills A Recapcontinued on page 2 Presidentís Message Think you need legal

  9. President's Message November 2011

    E-Print Network [OSTI]

    Mills, Trevor

    2011-01-01T23:59:59.000Z

    Access at www.westjem.org Presidentís Message November 2011INSIDE: Presidentís Message (continued) T Mills New Residenton page 2 Mills Presidentís Message Potts is a great way to

  10. President's Message February 2012

    E-Print Network [OSTI]

    Mills, Trevor

    2012-01-01T23:59:59.000Z

    Access at www.westjem.org PRESIDENTíS MESSAGE February 2012INSIDE: Presidentís Message (continued) T Mills Asynchronouspage 2 Mills Presidentís Message journal, another benefit to

  11. President's Message December 2010

    E-Print Network [OSTI]

    Potts, Brian

    2010-01-01T23:59:59.000Z

    of Emergency Medicine Presidentís Message December 2010INSIDE: Presidentís Message (continued) B Potts Speakerson page 2 Presidentís Message will continue to work with me

  12. President's Message November 2012

    E-Print Network [OSTI]

    Mills, Trevor

    2012-01-01T23:59:59.000Z

    at www.westjem.org PRESIDENTíS MESSAGE November 2012 INSIDE:CALAAEM). Mills Presidentís Message If you are old school,

  13. President's Message August 2012

    E-Print Network [OSTI]

    Mills, Trevor

    2012-01-01T23:59:59.000Z

    www.westjem.org PRESIDENTíS MESSAGE August 2012 INSIDE: EMCALAAEM). Mills Presidentís Message If you are old school,

  14. President's Message August 2013

    E-Print Network [OSTI]

    Mills, Lisa

    2013-01-01T23:59:59.000Z

    www.westjem.org PRESIDENTíS MESSAGE August 2013 I am honoredissues Mills Presidentís Message 7. Support of medical

  15. November 2013 President's Message

    E-Print Network [OSTI]

    Mills, Lisa

    2013-01-01T23:59:59.000Z

    www.westjem.com PRESIDENTíS MESSAGE November 2013 INSIDE:in Mills Presidentís Message organized medicine. Consider

  16. President's Message February 2013

    E-Print Network [OSTI]

    Mills, Trevor

    2013-01-01T23:59:59.000Z

    www.westjem.org PRESIDENTíS MESSAGE February 2013 INSIDE: SFaccounts Mills Presidentís Message to emerge. Donít forget

  17. President's Message May 2013

    E-Print Network [OSTI]

    Mills, Trevor

    2013-01-01T23:59:59.000Z

    www.westjem.org PRESIDENTíS MESSAGE May 2013 INSIDE: MedicalMills Presidentís Message interacting with the board andarchives, past president Messages, and newsletters are also

  18. President's Message February 2011

    E-Print Network [OSTI]

    Potts, Brian

    2011-01-01T23:59:59.000Z

    Academy of Emergency Medicine PRESIDENTíS MESSAGE INSIDE:Presidentís Message (continued) B Potts Health Policy Aon page 2 Presidentís Message the AAEM Job Bank and the AAEM

  19. President's Message May 2010

    E-Print Network [OSTI]

    Lim, Ingrid

    2010-01-01T23:59:59.000Z

    Academy of Emergency Medicine PRESIDENTíS MESSAGE May 2010INSIDE: Presidentís Message (continued) I Lim Finding aLee In my last president message, I would like to express my

  20. President's Message May 2011

    E-Print Network [OSTI]

    Potts, Brian

    2011-01-01T23:59:59.000Z

    Academy of Emergency Medicine Presidentís Message INSIDE:Presidentís Message (continued) B Potts Depression Amongin my prior newsletter messages. During the Scientific

  1. President's Message August 2009

    E-Print Network [OSTI]

    Lim, Ingrid T

    2009-01-01T23:59:59.000Z

    Academy of Emergency Medicine Presidentís Message INSIDE:Presidentís Message (continued) I Lim Carnage in Sacramentomembers, and push forward the message of equitable and fair

  2. The Storage of Shelled Pecans.

    E-Print Network [OSTI]

    Brison, Fred R. (Fred Robert)

    1945-01-01T23:59:59.000Z

    AGRIC - KPERIA .. -. STATIC t,4L EI rlENT ! C. H. MCUOSELL, Act~ng mrector Collegz Station. Texas 'LLETIN NO. 667 MARCH, THE STORAGE OF SHELLED PEC-4NS FRED R. BRISON Division of Horticulture . AGRICULTURAL AND MECHANICAL COLLEGE OF TE... Gibb Gilchrist, President [Blank Page in Original Bulletin] Shelled pecans may change in flavor, texture, and color, while in storage. They may also change as a result of insect or disease damage. Kernels change in flavor by becoming progressively...

  3. Monica Rimai Vice President, Finance

    E-Print Network [OSTI]

    Bertini, Robert L.

    Wim Wiewel President Monica Rimai Vice President, Finance & Administration Michael "Torre" Chisholm President, University Budget & Finance Phillip Zerzan Director, Campus Public Safety Sharon Blanton Director for Planning, Construction & Real Estate Don Forsythe Executive Director for Capital Finance

  4. Associate Vice President Human Resources

    E-Print Network [OSTI]

    Arnold, Jonathan

    Associate Vice President Human Resources Enjoy Athens! Great schools Affordable housing Eclectic Vice President for Human Resources. This position reports directly to the Vice President for Finance and Administration and provides leadership for the University's human resources programs and services

  5. President's Message: Mid Term Report

    E-Print Network [OSTI]

    Rodriguez, Robert

    2008-01-01T23:59:59.000Z

    NEWSLETTER Presidentís Message Mid-Term Report What have wegoals outlined in my first message was to bolster membership

  6. Presidentís Message Ė The Right Change for the Right Reasons

    E-Print Network [OSTI]

    Swadron, Stuart P

    2009-01-01T23:59:59.000Z

    Change for the Right Reasons Presidentís Message INSIDE:Presidentís Message (continued) S Swadron Bailout Nation D

  7. President Obama visits Geothermal Technologies Program Partner...

    Energy Savers [EERE]

    President Obama visits Geothermal Technologies Program Partner President Obama visits Geothermal Technologies Program Partner May 2, 2011 - 1:41pm Addthis President Obama visited...

  8. Presidentís Message: Keeping Informed Ė The CAL/AAEM News Service

    E-Print Network [OSTI]

    Swadron, Stuart P

    2008-01-01T23:59:59.000Z

    The CAL/AAEM News Service Presidentís Message INSIDE:Presidentís Message (continued) S SwadronSOCEP Presidentís Message A Patel The Gloves Are Off: The

  9. Administration and Finance Vice President /

    E-Print Network [OSTI]

    Su, Xiao

    Administration and Finance Vice President / Chief Financial Officer / CMS Executive Sponsor Opportunity & Employee Relations Director Finance Associate Vice President Manager, Special Projects Finance Support Director Bursar's Office Bursar Administration & Finance Division Organizational Chart

  10. The University of Memphis Vice President for Business and Finance

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    The University of Memphis Vice President for Business and Finance Vice President for Business and Finance Assistant Vice President Campus Planning & Design Assistant Vice President Business Services Assistant Vice President Finance Assistant Vice President Human Resources/ Chief Human Resources Officer

  11. Paul E. Stanton, Jr. University President

    E-Print Network [OSTI]

    Karsai, Istvan

    Advancement ETSU Foundation President Robert M. Plummer Associate V.P. for University Advancement Executive Director of ETSU Alumni Association president's message - 1 top stories - 2 unique alumni - 4 campus briefs President Dr. Paul E. Stanton, Jr., ETSU President Dr. Richard A. Manahan, Vice President for University

  12. ADMINSTRATION & FINANCE Senior Vice President

    E-Print Network [OSTI]

    Li, Mo

    ADMINSTRATION & FINANCE Senior Vice President DR. JEFFREY SCOTT FINANCIAL SERVICES Associate Vice ORGANIZATIONS FINANCE Director AMY HERRON General Accounting and Reporting Capital Assets Accounting Financial

  13. Vice President/CFO Administration and Finance

    E-Print Network [OSTI]

    de Lijser, Peter

    Vice President/CFO Administration and Finance Danny C. Kim Associate Vice President Facilities Management Tinnah Medina Director Facilities Operations Willem van der Pol Manager Finance & Admin Services

  14. The President's Biofuels Initiative | Department of Energy

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

    The President's Biofuels Initiative The President's Biofuels Initiative Presentation by Neil Rossmeissl at the October 24, 2006 Bio-Derived Liquids to Hydrogen Distributed...

  15. Barbara R. Snyder Senior Vice President

    E-Print Network [OSTI]

    Rollins, Andrew M.

    John D. Wheeler Senior Vice President for Finance and CFO John F. Sideras Provost and Executive Vice Treasurer Robert Clarke Brown Vice President for Campus Services Richard J. Jamieson Vice President President for Campus Planning and Facilities Management Stephen M. Campbell Executive Director Alumni

  16. Disruption Tolerant Shell

    E-Print Network [OSTI]

    Lukac, Martin; Girod, Lewis; Estrin, D

    2006-01-01T23:59:59.000Z

    Disruption Tolerant Shell ? Martin Lukac UCLA CENS 3563a reliable asynchronous remote shell interface (referred toas Disruption Tolerant Shell, DTS) to accomplish the

  17. Mr. J. Daniel Mahoney '66, President Mr. Bob Hardin '68, President-Elect

    E-Print Network [OSTI]

    Karsai, Istvan

    . Michael Browder '93, Past President Dr. Paul E. Stanton, Jr., ETSU President Dr. Richard A. Manahan, Vice President for University Advancement/President, ETSU Foundation Mr. Robert M. Plummer '84, '87, Associate Vice President for University Advancement/Executive Director of ETSU Alumni Association Mrs. Shirley

  18. Mr. J. Daniel Mahoney '66, President Mr. Bob Hardin '68, President-Elect

    E-Print Network [OSTI]

    Karsai, Istvan

    . Michael Browder '93, Past President Dr. Paul E. Stanton, Jr., ETSU President Dr. Richard A. Manahan, CPA, Vice President for University Advancement/President, ETSU Foundation Mr. Robert M. Plummer '84, '87, Associate Vice President for University Advancement/Executive Director of ETSU Alumni Association Mrs

  19. Mr. Bob V. Hardin '68, President Ms. Dorothy L. Grisham '74, President-Elect

    E-Print Network [OSTI]

    Karsai, Istvan

    , Treasurer Mr. J. Daniel Mahoney '66, Past President Dr. Paul E. Stanton, Jr., ETSU President Dr. Richard A. Manahan, Vice President for University Advancement/President, ETSU Foundation Mr. Robert M. Plummer '84, '87, Associate Vice President for University Advancement/Executive Director of ETSU Alumni Association

  20. Mrs. Dorothy L. Grisham '74, President Mr. Gary Poe '68, President-Elect

    E-Print Network [OSTI]

    Karsai, Istvan

    , Treasurer Mr. J. Daniel Mahoney '66, Past-President Dr. Paul E. Stanton, Jr., ETSU President Dr. Richard A. Manahan, Vice President for University Advancement/President, ETSU Foundation Mr. Robert M. Plummer '84,'87, Associate Vice President for University Advancement/Executive Director of ETSU Alumni Association Mr. Jason

  1. Vice President CEO, Tower Foundation

    E-Print Network [OSTI]

    Su, Xiao

    Vice President CEO, Tower Foundation Administrative Assistant to the AVP Information Representative Tower Foundation Charitable Gifts Officer Gift Analyst Gift Analyst Gift Analyst Senior Analyst Tower Foundation Stewardship Director Graphic Designer Administrative Assistant Web Communications

  2. Message from the President..........................................4 Message from the Vice President and

    E-Print Network [OSTI]

    Indiana University

    #12;Financial Report 2008≠09 #12;3 Message from the President..........................................4 Message from the Vice President and Chief Financial Officer, and Riley Hospital for Children. Message from the President 1 "Indiana University Impact Study," Indiana

  3. President Obama on Climate Change | Department of Energy

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

    President Obama on Climate Change President Obama on Climate Change Addthis Speakers President Barack Obama Duration 2:46 Topic Energy Sector Jobs Renewables Solar Climate Change...

  4. Paul E. Stanton, Jr. University President

    E-Print Network [OSTI]

    Karsai, Istvan

    Advancement ETSU Foundation President/CEO Robert M. Plummer Associate V.P. for University Advancement Executive Director of ETSU Alumni Association President's Message Hackney '10 photographers ETSU Today University Magazine Spring 2009 East Tennessee State University

  5. June 10, 1981 Volume 27, Number 12 1 President

    E-Print Network [OSTI]

    Farrell, Anthony P.

    combustion engines to be switched on and off at will. Please turn to page 2 See PRESIDENT The UBC president

  6. Barbara R. Snyder Vice President for

    E-Print Network [OSTI]

    Rollins, Andrew M.

    John D. Wheeler Senior Vice President for Finance and CFO John F. Sideras Provost and Executive Vice. Staley Treasurer Robert Clarke Brown Vice President for Campus Services Richard J. Jamieson Vice. Campbell Associate Vice President of Alumni Relations Christopher J. Vlahos University Compliance Officer

  7. Barbara R. Snyder Vice President for

    E-Print Network [OSTI]

    Rollins, Andrew M.

    John D. Wheeler Senior Vice President for Finance and CFO John F. Sideras Provost and Executive Vice. Staley Treasurer Robert Clarke Brown Vice President for Campus Services Richard J. Jamieson Vice Planning Stephen M. Campbell Associate Vice President of Alumni Relations Christopher J. Vlahos Dean

  8. Barbara R. Snyder Vice President for

    E-Print Network [OSTI]

    Rollins, Andrew M.

    John D. Wheeler Senior Vice President for Finance and CFO John F. Sideras Provost and Executive Vice. Staley Treasurer Robert Clarke Brown Vice President for Campus Services Richard J. Jamieson Vice for Facilities Management and Campus Planning Stephen M. Campbell Associate Vice President of Alumni Relations

  9. October 21, 2013 Message from the President

    E-Print Network [OSTI]

    . She has published peer-reviewed book chapters and articles in an array of academic journals. PleaseOctober 21, 2013 Message from the President: Reappointment Notice for the Vice-President Academic and Provost I am very pleased to announce the reappointment of Dr. Rhonda Lenton as Vice-President Academic

  10. VICE PRESIDENT FINANCE, RESOURCES & OPERATIONS

    E-Print Network [OSTI]

    Handy, Todd C.

    VICE PRESIDENT FINANCE, RESOURCES & OPERATIONS PIERRE OUILLET EA to VP Carolina Cerna ASSOCIATE VP ADMINISTRATION & FINANCE OKANAGAN CAMPUS Jackie Podger Michael Shakespeare (Interim) ASSOCIATE VP CAMPUS Dennis Silva FINANCE UBCO Carla Waters FINANCE UBCO Carla Waters BUDGET AND MGMT REPORTING Andrew Glynn

  11. SEATTLE UNIVERSITY 2014 President's Report

    E-Print Network [OSTI]

    Carter, John

    CONNECTIONS PROGRESS OPPORTUNITY CONTENTS 1 2 10 16 18 22 #12;SEATTLE'S UNIVERSITY From the President Many energy of the city we are privileged to call home, breathing its fresh air of innovation and ingenuity for the youth of our neighborhood and inspiring in them the belief that a college education is not just a dream

  12. David Jardini President, Black Diamond

    E-Print Network [OSTI]

    Benos, Panayiotis "Takis"

    President, Guttman Energy, Inc. Gene Harris Principal, Harris Consulting Ex Officio Marc S. Malandro, Ph.entrepreneur.pitt.edu The Institute for Entrepreneurial Excellence Advisory Board With statistics like these, it is no surprise in new funding obtained for client company growth million in increased revenue reported by client

  13. Administration & Finance Vice President (Interim)

    E-Print Network [OSTI]

    Dyer, Bill

    /Investment Monitoring Plant Fund Set-up/Monitoring Endowment Fund Set-up System Support Group Banner Production Control President Bob Lashaway Division Planning & Information Systems Director Vacant Financial Services Assistant Policing Parking Services Facilities Planning, Design & Construction Planning Campus Master Planning

  14. Message from the President to Federal Employees

    Broader source: Energy.gov [DOE]

    Today, the President released a letter to U.S. government employees thanking them for their service and welcoming them back to work after the recent shut down.

  15. President Obama Highlights Energy Department Efficiency Training...

    Office of Environmental Management (EM)

    all-out, all-of-the-above approach to American energy, President Obama today touted the Energy Department's cost-cutting Industrial Assessment Program. The program supports...

  16. Vice President Biden Remembers Sen. Ted Kennedy

    ScienceCinema (OSTI)

    Vice President Biden

    2010-09-01T23:59:59.000Z

    Vice President Biden spoke at the Department of Energy this morning and paid tribute to his dear friend, Senator Ted Kennedy.

  17. OCTOBER 7, 2013 Vice President Research &

    E-Print Network [OSTI]

    Pueppke Director MSU Extension Tom Coon Associate Director MSU Extension Stephen Lovejoy AssociateOCTOBER 7, 2013 Vice President Research & Graduate Studies Stephen Hsu Dean College of Agriculture

  18. Report: President's Energy Efficiency Contracting for Federal...

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

    released on December 19 applauds the federal government's success in awarding energy-saving contracts that will save taxpayer dollars. Signed by President Obama in December...

  19. James Anderson Associate Vice President for

    E-Print Network [OSTI]

    Barrash, Warren

    James Anderson Associate Vice President for Enrollment Services Kim Asbury Coordinator of Class Wilkins Mary Barker Management Systems Coordinator Kristine M. Collins, Registrar Mandy Nelson Associate

  20. Mr. J. Daniel Mahoney '66, President Mr. Bob Hardin '68, President-Elect

    E-Print Network [OSTI]

    Karsai, Istvan

    . Michael Browder '93, Past President Dr. Paul Stanton, Jr., ETSU President Dr. Richard A. Manahan, ETSU Vice President for University Advancement Mr. Robert M. Plummer '84 '87, Executive Director of ETSU. '60, Planned Giving Committee Chairman Ms. Eleanor E. Yoakum '65 ETSU ALUMNI ASSOCIATION BOARD

  1. Mr. J. Daniel Mahoney '66, President Mr. Bob Hardin '68, President-Elect

    E-Print Network [OSTI]

    Karsai, Istvan

    . Michael Browder, P.E. '68, Past President Dr. Paul E. Stanton, Jr., ETSU President Dr. Richard A. Manahan, ETSU Vice President for University Advancement Mr. Robert M. Plummer '84, '87, Executive Director of ETSU Alumni Association Mrs. Shirley Berk '72, '74 Mr. Jason Berry '98 ETSUTODAYSPRING2005 Credits: Mr

  2. President Ronald K. Machtley The Honorable Ronald K. Machtley became Bryant's president in 1996. Under his

    E-Print Network [OSTI]

    Blais, Brian

    President Ronald K. Machtley The Honorable Ronald K. Machtley became Bryant's president in 1996. Under his leadership Bryant has experienced unprecedented growth throughout the organization. Machtley at Bryant, President Machtley served as a United States Congressman for the State of Rhode Island from 1989

  3. Financial Report 200708 Message from the President ...............................................4

    E-Print Network [OSTI]

    Indiana University

    #12;Financial Report 2007≠08 #12;3 Message from the President ...............................................4 Message from the Vice President and Chief Financial Officer Message from the President #12;5 expanded existing financial aid and academic support programs and created

  4. 4-H Club Officer Handbook - Third Vice President

    E-Print Network [OSTI]

    Howard, Jeff W.

    2006-08-09T23:59:59.000Z

    This section from the 4-H Club Officer Handbook features the multi-faceted role of the Third Vice President. It covers the officer's duties, which primarily involve helping the President and other Vice Presidents. This section concludes with tasks...

  5. Disruption Tolerant Shell (SYS 13)

    E-Print Network [OSTI]

    Martin Lukac; Lewis Girod; Deborah Estrin

    2006-01-01T23:59:59.000Z

    Sensing Disruption Tolerant Shell Martin Lukac, Lewis Girod,Solution: Disruption Tolerant Shell Data Delivery: DTN ē Usemanagement tool: remote shell (ssh) ĖPublished data is hop-

  6. A REPORT TO THE PRESIDENT ON Sustainability

    E-Print Network [OSTI]

    Johnston, Daniel

    A REPORT TO THE PRESIDENT ON Sustainability Presented by The University of Texas at Austin Staff to the President Prepared by The University of Texas at Austin Staff Council Annual committee on Sustainability-line sustainability initiatives such as recycling, energy conservation, water conservation, and campus landscape

  7. A REPORT TO THE PRESIDENT ON Sustainability

    E-Print Network [OSTI]

    Johnston, Daniel

    A REPORT TO THE PRESIDENT ON Sustainability Presented by The University of Texas at Austin Staff to the President Prepared by The University of Texas at Austin Staff Council Sustainability Committee Karen Blaney Staff engagement is critical to the continued success of our university's sustainability initiatives

  8. Executive Vice President La-Verna Fountain

    E-Print Network [OSTI]

    Kim, Philip

    construction contracts went to MWL firms. During the past three fiscal years (2006-2008), Columbia contractedJoe Ienuso Executive Vice President La-Verna Fountain Associate Vice President Construction insurance and retirement benefits. Construction Jobs Referral Process As a service to those interested

  9. Interim Vice President/CFO Administration and Finance

    E-Print Network [OSTI]

    de Lijser, Peter

    Interim Vice President/CFO Administration and Finance Stephen G. Garcia Associate Vice President Project Management Tinnah Medina Director Facilities Operations Willem van der Pol Manager Finance & Admin

  10. Chicago Joins President Obama's Better Buildings Challenge to...

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

    Chicago Joins President Obama's Better Buildings Challenge to Reduce Energy Use and Save Money Chicago Joins President Obama's Better Buildings Challenge to Reduce Energy Use and...

  11. Sandia National Laboratories: Sandian Re-Elected as President...

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

    as President of the Association for Computing Machinery Special Interest Group on Graphics and Interactive Techniques Sandian Re-Elected as President of the Association for...

  12. President Obama Announces Over $467 Million in Recovery Act Funding...

    Energy Savers [EERE]

    President Obama Announces Over 467 Million in Recovery Act Funding for Geothermal and Solar Energy Projects President Obama Announces Over 467 Million in Recovery Act Funding for...

  13. Kieran Connolly named BPA vice president of Generation and Asset...

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

    2014 12:00 AM Tweet Page Content Kieran Connolly, Vice President of Generation and Asset Managment Kieran Connolly has been named Bonneville Power Administration vice president of...

  14. Vice President Biden Visits National Renewable Energy Laboratory...

    Energy Savers [EERE]

    Vice President Biden Visits National Renewable Energy Laboratory, Announces First Agreement Under "America's Next Top Energy Innovator" Challenge Vice President Biden Visits...

  15. Bill Reis Named Vice President, Public & Governmental Affairs...

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

    Bill Reis Named Vice ... Bill Reis Named Vice President, Public & Governmental Affairs Posted: October 30, 2013 - 10:15am Bill Reis, Vice President, Public & Governmental Affairs...

  16. JLab Awarded Vice President's Hammer Award | Jefferson Lab

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

    Awarded Vice President's Hammer Award The Directives Review Team at the Thomas Jefferson National Accelerator Facility (Jefferson Lab) has been awarded the Vice President's Hammer...

  17. President Obama Visits the Argonne National Research Lab to Talk...

    Energy Savers [EERE]

    President Obama Visits the Argonne National Research Lab to Talk About American Energy Security President Obama Visits the Argonne National Research Lab to Talk About American...

  18. Gov. Granholm, Administration Officials to Preview the President...

    Office of Environmental Management (EM)

    Gov. Granholm, Administration Officials to Preview the President's Trip to Holland, Michigan Gov. Granholm, Administration Officials to Preview the President's Trip to Holland,...

  19. Federal Task Force Sends Recommendations to President on Fostering...

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

    Task Force Sends Recommendations to President on Fostering Clean Coal Technology Federal Task Force Sends Recommendations to President on Fostering Clean Coal Technology August 12,...

  20. www.sciencemag.org SCIENCE VOL 308 29 APRIL 2005 601 ecent comments from Harvard President Lawrence Summers have sparked heated discussion in the

    E-Print Network [OSTI]

    Dyer, Bill

    ." Among other initiatives, BP has appointed a Vice President for Diversity, and Shell Oil holds recruiting is becoming more common in UK-based companies, as industry recognizes that diversity is a strategic business to top academic jobs. The Athena Survey of SET (ASSET) report (just released) compares career pathways

  1. The Public Presidency: Increasing Return on Investment

    E-Print Network [OSTI]

    Miles, Matthew R.

    2013-05-31T23:59:59.000Z

    surrounding some of the sermons preached at the Christian church Barack Obama was attending, one year later, approximately 20% of Americans believed that President Obama was a Muslim (Kohut, Lugo, and Keeter 2010). In August, a similar number reported... of national news may be worth the efforts of a public campaign even when presidents do not persuade the public. The third chapter of this dissertation examines news coverage from George W. Bushís campaign for the Troop Surge in Iraq and President Obamaís...

  2. Ruben Armiana Chair; President, SSU Andrew Rogerson Co-Chair; Provost, CAO and Vice President for Academic Affairs

    E-Print Network [OSTI]

    Ravikumar, B.

    Peterson CRC Representative; Senior Director for University Budget, A&F Alex Boyer Student; President

  3. Richard O. Buckius Vice President for Research

    E-Print Network [OSTI]

    Ginzel, Matthew

    Recognitions Awarded the National Medal of Technology and Innovation from President Barack Obama Citation: "... an extraordinary record of innovations ... significant positive impacts on electronic device f t i li fi d 3

  4. Office of the President One Washington Square

    E-Print Network [OSTI]

    Su, Xiao

    , and Administrative Heads FROM: Robert L. Caret President SUBJECT: Presidential Directive 01-01 SJSU "Time, Place be performed instantly or in the future), are subject to regulation and require obtaining a permit. #12

  5. Off-Shell Tachyons

    E-Print Network [OSTI]

    Yi-Lei Tang

    2015-01-30T23:59:59.000Z

    The idea that the new particles invented in some models beyond the standard model can appear only inside the loops is attractive. In this paper, we fill these loops with off-shell tachyons, leading to a solution of the zero results of the loop diagrams involving the off-shell non-tachyonic particles. We also calculate the Passarino-Veltman $A_0^o$ and $B_0^o$ of the off-shell tachyons.

  6. Physics of viral shells

    E-Print Network [OSTI]

    Bruinsma, RF; Bruinsma, RF; Klug, WS

    2015-01-01T23:59:59.000Z

    constitute minimum free energy states but they typically areshells must have different energies so T = 7 shells shouldof thermodynamics, the Gibbs free energy of Physics of Viral

  7. Penn Engineering Alumni Society Report : October 2010 Submitted by Farnia Fresnel, President

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Penn Engineering Alumni Society Report : October 2010 Submitted by Farnia Fresnel, President http The 2010 - 2011 Executive EAS Board includes: President ≠ Farnia Fresnel, SYS 1998 Vice President ≠ Hank

  8. President's CouncilPresident s Council Autumn 2008 TokyoAutumn 2008, Tokyo

    E-Print Network [OSTI]

    Miyashita, Yasushi

    . Social Linkage President's Council Autumn 20088 #12;InitiativesInitiatives 1. G8 University Summit Management Program 4. Policy Alternative Research Institute President's Council Autumn 20089 #12;G8 University Summit 2008G8 University Summit 2008 35 Universities from 14 G8 and Outreach Countries Sapporo

  9. Thin shell model revisited

    E-Print Network [OSTI]

    Sijie Gao; Xiaobao Wang

    2014-12-26T23:59:59.000Z

    We reconsider some fundamental problems of the thin shell model. First, we point out that the "cut and paste" construction does not guarantee a well-defined manifold because there is no overlap of coordinates across the shell. When one requires that the spacetime metric across the thin shell is continuous, it also provides a way to specify the tangent space and the manifold. Other authors have shown that this specification leads to the conservation laws when shells collide. On the other hand, the well-known areal radius $r$ seems to be a perfect coordinate covering all regions of a spherically symmetric spacetime. However, we show by simple but rigorous arguments that $r$ fails to be a coordinate covering a neighborhood of the thin shell if the metric across the shell is continuous. When two spherical shells collide and merge into one, we show that it is possible that $r$ remains to be a good coordinate and the conservation laws hold. To make this happen, different spacetime regions divided by the shells must be glued in a specific way such that some constraints are satisfied. We compare our new construction with the old one by solving constraints numerically.

  10. President Obama Touts Renewable Energy, Efficiency in Climate...

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

    Renewable Energy, Efficiency in Climate Plan President Obama Touts Renewable Energy, Efficiency in Climate Plan July 3, 2013 - 5:09pm Addthis President Obama announced on June 25...

  11. Engineering Alumni Society Submitted by Farnia Fresnel, President

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Engineering Alumni Society May 2013 Submitted by Farnia Fresnel, President http), Farnia Fresnel (President), and Matt Quale (Secretary), Dane Carswell (Director) as they celebrate approach to alumni : alumni relations. #12;Engineering Alumni Society May 2013 Submitted by Farnia Fresnel

  12. PROCEDURES FOR THE APPOINTMENT OF THE VICE-PRESIDENT FINANCE

    E-Print Network [OSTI]

    Victoria, University of

    PROCEDURES FOR THE APPOINTMENT OF THE VICE-PRESIDENT FINANCE AND OPERATIONS University Policy No of Governors concerning the appointment of the Vice- President Finance and Operations. PROCEDURES 2.00 When management team reporting directly to the Vice- President Finance and Operations selected by and from

  13. REPORT TO THE PRESIDENT ON FEDERAL ENERGY RESEARCH AND DEVELOPMENT

    E-Print Network [OSTI]

    REPORT TO THE PRESIDENT ON FEDERAL ENERGY RESEARCH AND DEVELOPMENT FOR THE CHALLENGES OF THE TWENTY-FIRST CENTURY PRESIDENT'S COMMITTEE OF ADVISORS ON SCIENCE AND TECHNOLOGY PANEL ON ENERGY RESEARCH of the President's Committee of Advisors on Science and Technology (PCAST) the final report Federal Energy Research

  14. Judy Genshaft, PhD President, University of South Florida

    E-Print Network [OSTI]

    Meyers, Steven D.

    Judy Genshaft, PhD President, University of South Florida Charles (Charly) Lockwood, MD, MHCM President Health Law, Policy & Safety Dianne Morrison- Beedy, PhD, RN, WHNP-BC, FNAP, FAANP, FAAN Senior Officer Gretchen Koehler, PhD Assistant Vice President, Academic Program Administration & Inst

  15. Judy Genshaft, PhD President, University of South Florida

    E-Print Network [OSTI]

    Meyers, Steven D.

    Judy Genshaft, PhD President, University of South Florida Charles (Charly) J. Lockwood, MD, MHCM & Safety Dianne Morrison- Beedy, PhD, RN, WHNP-BC, FNAP, FAANP, FAAN Senior Associate Vice President Officer Gretchen Koehler, PhD Assistant Vice President, Academic Program Administration & Inst

  16. Hollow spherical shell manufacture

    DOE Patents [OSTI]

    O'Holleran, Thomas P. (Belleville, MI)

    1991-01-01T23:59:59.000Z

    A process for making a hollow spherical shell of silicate glass composition in which an aqueous suspension of silicate glass particles and an immiscible liquid blowing agent is placed within the hollow spherical cavity of a porous mold. The mold is spun to reduce effective gravity to zero and to center the blowing agent, while being heated so as to vaporize the immiscible liquid and urge the water carrier of the aqueous suspension to migrate into the body of the mold, leaving a green shell compact deposited around the mold cavity. The green shell compact is then removed from the cavity, and is sintered for a time and a temperature sufficient to form a silicate glass shell of substantially homogeneous composition and uniform geometry.

  17. Hollow spherical shell manufacture

    DOE Patents [OSTI]

    O'Holleran, T.P.

    1991-11-26T23:59:59.000Z

    A process is disclosed for making a hollow spherical shell of silicate glass composition in which an aqueous suspension of silicate glass particles and an immiscible liquid blowing agent is placed within the hollow spherical cavity of a porous mold. The mold is spun to reduce effective gravity to zero and to center the blowing agent, while being heated so as to vaporize the immiscible liquid and urge the water carrier of the aqueous suspension to migrate into the body of the mold, leaving a green shell compact deposited around the mold cavity. The green shell compact is then removed from the cavity, and is sintered for a time and a temperature sufficient to form a silicate glass shell of substantially homogeneous composition and uniform geometry. 3 figures.

  18. Oxide Shell Reduction and Magnetic Property Changes in Core-Shell...

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

    Shell Reduction and Magnetic Property Changes in Core-Shell Fe Nanoclusters under Ion Irradiation. Oxide Shell Reduction and Magnetic Property Changes in Core-Shell Fe Nanoclusters...

  19. Fall 2012 President's Welcome Back Dear Colleagues,

    E-Print Network [OSTI]

    Engineering, Chemistry, Metallurgical and Materials Engineering, and Physics departments. I'd like to thank of the formation of the College of Engineering and Computational Sciences, and Dean Kevin Moore has experiencedFall 2012 President's Welcome Back Dear Colleagues, The excitement of new and returning students

  20. Sustainability Annual Report 2012 President's Message

    E-Print Network [OSTI]

    Haykin, Simon

    Sustainability Annual Report 2012 #12;#12;President's Message McMaster University remains committed to ensuring a sustainable campus and community. Over the course of the year, this commitment has been this annual report on Sustainability, I encourage you to reflect on the active roles played by students

  1. Sustainability Annual Report | 2013 President's Message

    E-Print Network [OSTI]

    Thompson, Michael

    Sustainability Annual Report | 2013 #12;#12;President's Message To continue our commitment to ensuring a sustainable campus and campus community, advancements have been made in all areas of sustainability at McMaster, including physical and operational upgrades to campus grounds and infrastructure

  2. Sustainability Annual Report 2011 President's Message

    E-Print Network [OSTI]

    Haykin, Simon

    Sustainability Annual Report 2011 #12;#12;President's Message Ensuring a sustainable campus is a McMaster priority. Our commitment to sustainability is comprehensive and touches every aspect of campus life: from's report shows that we have made great strides in ensuring the sustainability of our beautiful campus

  3. The University of Georgia Senior Vice President

    E-Print Network [OSTI]

    Arnold, Jonathan

    directly to the Senior Vice President. In Summer 2011--in response to the recent development to the University of Georgia). These factors included, among others: decreasing state support; increased demands historic campus; and hiring, retention, compression and morale issues compounded by the inability

  4. Organizational Chart AssociateVice President

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Organizational Chart AssociateVice President Michelle H. Brown-Nevers, Ed.D. Associate Vice PennPlan online content n Media Liaison n Social Media #12;Organizational Chart Michael Merritt;Organizational Chart Sharon Pepe Senior Director Credit Services Josephine Delaney Manager Collections Assistant

  5. In October, President Levin announced the

    E-Print Network [OSTI]

    (Online Computer Library Center) Digital Archive. As Vice President for Digital and Preservation Services at OCLC, she focused on developing for member libraries management services for the life cycle of digital in the Library of Congress National Digital Information Infrastructure and Preservation Program (NDIIPP). Ms

  6. West Michigan Strategic Alliance Greg Northrup, President

    E-Print Network [OSTI]

    West Michigan Strategic Alliance Greg Northrup, President 951 Wealthy Street SE P.O. Box 68046://www.wm-alliance.org/ The West Michigan Strategic Alliance (WMSA) is a 501 (C)3 not-for-profit organization comprised in creating regional partnerships and collaborations. The vision of WMSA is to make West Michigan a best place

  7. Office of the President University Policy

    E-Print Network [OSTI]

    Fernandez, Eduardo

    ABUSE 05-30-13 7.6 Supersedes: Page Of New 1 4 Responsible Authority: Senior Vice President, Financial to the child's care and maintenance or has failed to establish or maintain a substantial and positive) #12;Abuse: Any willful act or threatened act that results in any physical, mental, or sexual abuse

  8. Office of the President One Washington Square

    E-Print Network [OSTI]

    Su, Xiao

    FROM: Don W. Kassing President SUBJECT: Presidential Directive 2007-01 Executive Order No. 970 Student to be present in all or some proceedings. San Josť State University does not permit attorneys to be present at 924-5985. DWK:ms Attachment #12;Presidential Directive Introduction San Josť State University

  9. PRESENTATION OF AWARDS Stephen O. Dean, President

    E-Print Network [OSTI]

    PRESENTATION OF AWARDS Stephen O. Dean, President Fusion Power Associates Fusion Power Associates Annual Meeting and Symposium December 4-5, 2007 #12;2007 LEADERSHIP AWARDS ∑ Fusion Power Associates Leadership Awards were established in 1980 to recognize individuals who have provided outstanding leadership

  10. Office of the President University Policy

    E-Print Network [OSTI]

    Fernandez, Eduardo

    1 Office of the President University Policy SUBJECT: GUIDELINES FOR UNIVERSITY POLICY DEVELOPMENT Effective Date: 3-18-09 Policy Number: 1.1 Supersedes: Page Of Policy 1.1 (adopted 3-19-08) 1 7 Responsible Authority: General Counsel I. INTRODUCTION: The Florida Atlantic University Policies and Procedures Manual

  11. UNIVERSITY OF MASSACHUSETTS PRESIDENT'S OFFICE Program Announcement

    E-Print Network [OSTI]

    Mountziaris, T. J.

    and Intellectual Property (CVIP) manages a "gap" #12;fund that provides this type of assistance. ProposalsUNIVERSITY OF MASSACHUSETTS ­ PRESIDENT'S OFFICE Program Announcement 2012 Science & Technology (systemwide, led by Worcester) and the Center for Personalized Cancer Therapy (Boston, in partnership

  12. Recent Advances in Shell Evolution with Shell-Model Calculations

    E-Print Network [OSTI]

    Yutaka Utsuno; Takaharu Otsuka; Yusuke Tsunoda; Noritaka Shimizu; Michio Honma; Tomoaki Togashi; Takahiro Mizusaki

    2014-09-16T23:59:59.000Z

    Shell evolution in exotic nuclei is investigated with large-scale shell-model calculations. After presenting that the central and tensor forces produce distinctive ways of shell evolution, we show several recent results: (i) evolution of single-particle-like levels in antimony and cupper isotopes, (ii) shape coexistence in nickel isotopes understood in terms of configuration-dependent shell structure, and (iii) prediction of the evolution of the recently established $N=34$ magic number towards smaller proton numbers. In any case, large-scale shell-model calculations play indispensable roles in describing the interplay between single-particle character and correlation.

  13. Mollusk Shell Nacre Ultrastructure Correlates with Environmental...

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

    Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure...

  14. One Year into President's Climate Action Plan, Finance Playing...

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

    One Year into Presidents Climate Action Plan, Finance Playing an Important Role Peter W. Davidson Peter W. Davidson Executive Director of the Loan Programs Office (LPO) Since...

  15. President Louisiana State Building and Construction Trades Council

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

    Robert "Tiger" Hammond President Louisiana State Building and Construction Trades Council Panel Discussion: "Workforce Issues as a Vulnerability to Energy Development" U.S....

  16. EXECUTIVE OFFICE OF THE PRESIDENT OFFICE OF MANAGEMENT AND BUDGET

    E-Print Network [OSTI]

    that will improve energy security by expanding the use of clean coal technology. In addition for carbon sequestration technologies, which are part of the President's Coal Research Initiative

  17. The Transformation of Askar Akaev, President of Kyrgyzstan

    E-Print Network [OSTI]

    Spector, Regine A.

    2004-01-01T23:59:59.000Z

    According to Eckstein, Kyrgyzstan would be a "least-likely"A. Akayev: The First President of Independent Kyrgyzstan,"Kyrgyzstan, Akaev's motivations for joining the Communist

  18. Nuclear Energy University Program: A Presentation to Vice Presidents...

    Office of Environmental Management (EM)

    Nuclear Energy University Program: A Presentation to Vice Presidents of Research and Development of Historically Black Colleges and Universities, given by the Office of Nuclear...

  19. President's Council on Jobs and Competitiveness Announces Industry...

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

    Council on Jobs and Competitiveness Announces Industry Leaders' Commitment to Double Engineering Internships in 2012 President's Council on Jobs and Competitiveness Announces...

  20. President Obama Visits North Carolina's Cree, Inc., and Meets...

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

    hiring across the nation. The President's Jobs and Competitiveness Council, led by GE Chairman and CEO Jeffrey Immelt, is a group of business leaders from around the country...

  1. President Obama Announces Over $467 Million in Recovery Act Funding...

    Office of Environmental Management (EM)

    Over 467 Million in Recovery Act Funding for Geothermal and Solar Energy Projects President Obama Announces Over 467 Million in Recovery Act Funding for Geothermal and Solar...

  2. Report to the President on Ensuring American Leadership in Advanced...

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

    pcastjune2011.pdf More Documents & Publications Report to the President on Capturing Domestic Competitive Advantage in Advanced Manufacturing A National Strategic Plan For...

  3. Joint Statement by President Barack Obama of the United States...

    Energy Savers [EERE]

    Barack Obama of the United States of America and Prime Minister Stephen Harper of Canada on Accelerating Economic Recovery and Job Creation Joint Statement by President Barack...

  4. President Issues Executive Order Aimed at Preparing for the Impacts...

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

    Issues Executive Order Aimed at Preparing for the Impacts of Climate Change; Tribal Leaders to Serve on Task Force President Issues Executive Order Aimed at Preparing for the...

  5. Secretary Bodman Meets with Egyptian President Mubarak to Highlight...

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

    Egypt's Support for GNEP and Encourages Policies that Attract Energy Investment CAIRO, EGYPT - U.S. Secretary of Energy Samuel W. Bodman today met with Egyptian President Muhammad...

  6. A National Direct Primary for the Presidency

    E-Print Network [OSTI]

    Crookham, Arthur L.

    1912-01-01T23:59:59.000Z

    sphere of acti vi ty left ''It-O : him~ ' ∑In the caucus, primary or .( , .' conventi.on, ~ un~e'g\\{iated 'by law, he has realized his . ", ";. .,:., 'r, ~~.; ~ '>-- opportunit~∑e~.~'ttci~\\ ~~~,. :fil,i.f.e~t degree. "Let me control , ,,;. .' 'I... if the defection was s.trong enough to threaten disaster, and then to bind all who stayed thr ough the caucus to its decision. When there is remembered, the added fact that Congress was conven- iently in session previous to the president'ial elect- ion (an item...

  7. President's Climate Action Plan | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015of 2005UNS Electric, Inc.DepartmentFleetEnergy view ofPresident√ʬĬôs

  8. President Obama Announces More Key Administration Posts

    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 forPortsmouth/Paducah ProjectPRE-AWARDenergy use is projectedEnergyPresident Obama

  9. ENTERPRISE RISK MANAGEMENT 2009 Annual Report Letter to President Emmert . . . . . . . . . . . . . 2

    E-Print Network [OSTI]

    Kaminsky, Werner

    0 ENTERPRISE RISK MANAGEMENT 2009 Annual Report #12;1 Letter to President Emmert Analysis Employment Liability Seminar . . . . . . . . . . . 13 Human Resources ≠ Managing Key Risks: President Mark Emmert From: President's Advisory Committee on Enterprise Risk Management Re: UW Enterprise

  10. Samson Sherman President Obama's Energy Plan & Natural Gas

    E-Print Network [OSTI]

    Toohey, Darin W.

    Samson Sherman President Obama's Energy Plan & Natural Gas The Plan On March 30, President Obama" but includes wind, solar, nuclear, natural gas, and coal plants that can capture and store CO2 emissions period. Natural Gas Natural gas is considered the cleanest of all fossil fuels. Mostly comprised

  11. Office of the Vice President for Research 203 Administration Building

    E-Print Network [OSTI]

    Office of the Vice President for Research 203 Administration Building Fort Collins, Colorado 80523 of the Vice President for Research. The Institute builds on the long history of broad work in energy at the Powerhouse Energy Institute (when that building is completed in 2014) and Engines & Energy Conversion

  12. Executive Budget Support Team Office of the President

    E-Print Network [OSTI]

    Jacobs, Laurence J.

    Executive Budget Support Team Office of the President Provost / Executive Vice President Institute Budget Planning & Admin. Jim Kirk Asst Budget Director Vacant Sr. Budget Analyst Ebony Thompson Budget Development & Capital Budgets Director Lisa Godfrey Systems Support Engr II Vacant Sr. Budget

  13. Penn Engineering Alumni Society Report : May 2011 Submitted by Farnia Fresnel, President

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Penn Engineering Alumni Society Report : May 2011 Submitted by Farnia Fresnel, President http included representation from the SEAS classes from 1961 to 2003: President ≠ Farnia Fresnel, SYS Vice

  14. Penn Engineering Alumni Society Report: May 2012 Submitted by Farnia Fresnel, President

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Penn Engineering Alumni Society Report: May 2012 Submitted by Farnia Fresnel, President http Engineering Alumni Society Report: May 2012 Submitted by Farnia Fresnel, President http

  15. Shell to shell energy transfer in magnetohydrodynamic dynamo simulations

    E-Print Network [OSTI]

    Pouquet, Annick

    Shell to shell energy transfer in magnetohydrodynamic dynamo simulations Pablo Mininni, Alexandros 80307 (Dated: May 5, 2005) We study the transfer of energy between different scales for forced three, and which scales of the magnetic field receive energy directly from the velocity field and which scales

  16. Shell Hoop Prestress Generated by Welding

    E-Print Network [OSTI]

    Meuser, R.B.

    2011-01-01T23:59:59.000Z

    to allow determination of a shell-to-yoke coefficient ofAluminum plates clamp the shell pieces against the yoke forType 304 stainless steel shell halves 5 in. long and 1/4 in.

  17. James A. Israel James A. Israel is president, Worldwide Financial Services

    E-Print Network [OSTI]

    Anstreicher, Kurt M.

    , Germany, as vice president, Marketing and Product Support, Europe, Africa, and Middle East. Israel

  18. Credit and Trade References President and Fellows of Harvard College

    E-Print Network [OSTI]

    Credit and Trade References President and Fellows of Harvard College 1033 Massachusetts Avenue, 2nd;Trade References VWR International Risk Department Contact: Brian Newton TEL: 770-792-1271 FAX: 484

  19. Secretary Moniz Joins President Obama in Visit to Cleveland High...

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

    and how commitments to renewable energy and energy efficiency are helping grow the economy and end our dependence on foreign oil. The President also spoke about new data from...

  20. President Obama Meets with Samuel J. Heyman Service to America...

    Office of Environmental Management (EM)

    in the back row, fifth from the right. Josh Silverman, Director of HSS' Office of Sustainability Support, was recently recognized at the White House by President Barack Obama for...

  1. 4-H Club Officer Handbook - First Vice President

    E-Print Network [OSTI]

    Howard, Jeff W.

    2006-08-09T23:59:59.000Z

    This section from the 4-H Club Officer Handbook features the multi-faceted role of the First Vice President. It covers the officer's duties, how to plan programs and steps to handling speakers....

  2. Year in Review Letter from the President 2

    E-Print Network [OSTI]

    Year in Review 2010 #12;#12;Contents Letter from the President 2 Open for Business 4 Community one filled with success and promise for Old Dominion University. As you'll see in this Year in Review

  3. President Obama Signs Two Bills to Boost Small Hydropower Projects...

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

    President Obama on August 9 signed into law two bills aimed at boosting development of small U.S. hydropower projects. The bills, H.R. 267, the Hydropower Regulatory Efficiency...

  4. President Barack Obama at UN Climate Change Summit

    ScienceCinema (OSTI)

    Obama, Barack

    2013-05-29T23:59:59.000Z

    In his first address to the United Nations as Commander-in- Chief, President Obama addresses the pressing issue of climate change. The one-day UN summit brought together delegations from 90 nations. September 22, 2009 (Public Domain)

  5. Joseph Rigby Chairman, President and CEO Pepco Holdings, Inc...

    Office of Environmental Management (EM)

    Joseph Rigby and I am theChairman, President and CEO for Pepco Holdings, Inc. (PHI), an electric utility delivering power to about 2 million customers in the Mid-Atlantic region,...

  6. Steven Landau President and Founder of Touch Graphics, Inc.

    E-Print Network [OSTI]

    Steven Landau President and Founder of Touch Graphics, Inc. Functional Near Infrared Spectroscopy- lopment, computer graphics, user interface design, and em- bedded system development. For any questions and neural correlates), and brain computer interfaces for control and communication. Bioengineering Seminar

  7. ADMINISTRATIVE LEADERS PATRICK T. HARKER, President of the University

    E-Print Network [OSTI]

    Firestone, Jeremy

    for Facilities, Real Estate and Auxiliary Services NANCY BRICKHOUSE, Deputy Provost SCOTT R. DOUGLASS, Executive, Vice Provost for Research MONICA M. TAYLOR, Vice President for Development and Alumni Relations DAWN

  8. President Requests $881.6 Million for Fossil Energy Programs

    Broader source: Energy.gov [DOE]

    President Obama's FY 2010 budget seeks $881.6 million for the Office of Fossil Energy to support improved energy security and rapid development of climate-oriented technology.

  9. President Requests $760.4 Million for Fossil Energy Programs

    Broader source: Energy.gov [DOE]

    President Obama's FY 2011 budget seeks $760.4 million for the Office of Fossil Energy to support improved energy security and rapid development of climate-oriented technology.

  10. At Hampton University, Energy Sec. Moniz to Echo President's...

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

    At Hampton University, Energy Sec. Moniz to Echo President's State of the Union Call to Make America a Magnet for Good Jobs and Innovation At Hampton University, Energy Sec. Moniz...

  11. THE UNIVERSITY OF CALIFORNIA OFFICE OF THE PRESIDENT

    E-Print Network [OSTI]

    California at Berkeley, University of

    THE UNIVERSITY OF CALIFORNIA OFFICE OF THE PRESIDENT December 7, 1955 Mrs. Max Parrand Valley Club of Montecito lox 1140 Santa Barbara, California CDear Mrs. Parrand: X am happy both for you

  12. Commencement Dinner 2014 NUS President Professor Tan Chorh Chuan

    E-Print Network [OSTI]

    Yu, Hao

    NUS Chancellor, President Tony Tan Keng Yam, and Mrs Mary Tan NUS Pro-Chancellors Chairman, NUS Board and having food hallucinations, Evelyn's contribution would be "Hey, for breakfast tomorrow, I bet

  13. President Obama Signs New Directive to Strengthen our Work to...

    Energy Savers [EERE]

    President Obama knows that promoting gender equality and empowering women and girls at home and abroad is not only the right thing to do, but the smart thing to do, as Secretary...

  14. Distinguishing Off-Shell Supergravities With On-Shell Physics

    E-Print Network [OSTI]

    Neil D. Lambert; Gregory W. Moore

    2005-10-04T23:59:59.000Z

    We show that it is possible to distinguish between different off-shell completions of supergravity at the on-shell level. We focus on the comparison of the ``new minimal'' formulation of off-shell four-dimensional N=1 supergravity with the ``old minimal'' formulation. We show that there are 3-manifolds which admit supersymmetric compactifications in the new-minimal formulation but which do not admit supersymmetric compactifications in other formulations. Moreover, on manifolds with boundary the new-minimal formulation admits ``singleton modes'' which are absent in other formulations.

  15. Neal Lane: Confessions of a President's Science Advisor

    ScienceCinema (OSTI)

    Neal Lane

    2010-09-01T23:59:59.000Z

    Former science advisor to president Bill Clinton Neal Lane briefly reviews the history of the job of Science Advisor to the President and give some examples of issues he had to deal with when he was in that position, including climate change, stem cell research, the human genome, nanotechnology and research funding. He will also give his opinions about the present and future state of science in the U.S.

  16. Optimum rotationally symmetric shells for flywheel rotors

    DOE Patents [OSTI]

    Blake, Henry W. (Oak Ridge, TN)

    2000-01-01T23:59:59.000Z

    A flywheel rim support formed from two shell halves. Each of the shell halves has a disc connected to the central shaft. A first shell element connects to the disc at an interface. A second shell element connects to the first shell element. The second shell element has a plurality of meridional slits. A cylindrical shell element connects to the second shell element. The cylindrical shell element connects to the inner surface of the flywheel rim. A flywheel rim support having a disc connected an outer diameter of a shaft. Two optimally shaped shell elements connect to the optimally shaped disc at an interface. The interface defines a discontinuity in a meridional slope of said support. A cylindrical shell element connects to the two shell elements. The cylindrical shell element has an outer surface for connecting to the inner surface of the flywheel rim. A flywheel rim casing includes an annular shell connected to the central shaft. The annular shell connects to the flywheel rim. A composite shell surrounds the shaft, annular shell and flywheel rim.

  17. Are Hadrons Shell-Structured? Paolo Palazzi

    E-Print Network [OSTI]

    Are Hadrons Shell-Structured? Paolo Palazzi particlez.org, PO Box 62, CH-1217 Meyrin 1, Switzerland atoms and nuclei, are shell-structured. The mesonic shells mass series, combined with the results of a mass quantization analysis, reveals striking similarities with the nuclear shells. In addition

  18. The Digital Library Shell Yael Dubinsky

    E-Print Network [OSTI]

    Yehudai, Amiram

    The Digital Library Shell Yael Dubinsky University of Rome "La Sapienza" Department of Computer Libraries The Digital Library (DL) Shell The project of development the DL shell Demonstration Summary and future work #12;3 Agenda Digital Libraries The Digital Library (DL) Shell The project of development

  19. Stability of elastic grid shells

    E-Print Network [OSTI]

    Mesnil, Romain, M. Eng. Massachusetts Institute of Technology

    2013-01-01T23:59:59.000Z

    The elastic grid shell is a solution that combines double curvature and ease of mounting. This structural system, based on the deformation of an initially at grid without shear stiffness was invented more than fifty years ...

  20. Insulative laser shell coupler

    DOE Patents [OSTI]

    Arnold, P.A.; Anderson, A.T.; Alger, T.W.

    1994-09-20T23:59:59.000Z

    A segmented coaxial laser shell assembly having at least two water jacket sections, two pairs of interconnection half rings, a dielectric break ring, and a pair of threaded ring sections is disclosed. Each water jacket section with an inner tubular section that defines an inner laser cavity with water paths adjacent to at least a portion of the exterior of the inner tubular section, and mating faces at the end of the water jacket section through which the inner laser cavity opens and which defines at least one water port therethrough in communication with the water jackets. The water paths also define in their external surface a circumferential notch set back from and in close proximity to the mating face. The dielectric break ring has selected thickness and is placed between, and in coaxial alignment with, the mating faces of two of the adjacent water jacket sections. The break ring also defines an inner laser cavity of the same size and shape as the inner laser cavity of the water jacket sections and at least one water passage through the break ring to communicate with at least one water port through the mating faces of the water jacket sections. 4 figs.

  1. Proposition 13 and The California Fiscal Shell Game

    E-Print Network [OSTI]

    McCubbins, Colin H; McCubbins, Mathew D

    2010-01-01T23:59:59.000Z

    and The California Fiscal Shell Game Notes Others, however,13 and The California Fiscal Shell Game References Abadie,13 and The California Fiscal Shell Game Kogan, Vladimir, and

  2. President Obama Announces $2.4 Billion in Funding to Support...

    Energy Savers [EERE]

    President Obama Announces 2.4 Billion in Funding to Support Next Generation Electric Vehicles President Obama Announces 2.4 Billion in Funding to Support Next Generation Electric...

  3. District Superintendent and School Board President Perceptions Regarding Leadership Characteristics for Superintendents of Texas Schools

    E-Print Network [OSTI]

    Groholski, Kenneth L.

    2010-07-14T23:59:59.000Z

    presidents of Texas public schools. The population was superintendents and school board presidents from Texas Public Schools. The population was divided into large school districts (>10,000 students) and small school districts (students). Data...

  4. Penn Engineering Alumni Society Report : November 2011 Submitted by Farnia Fresnel, President

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Penn Engineering Alumni Society Report : November 2011 Submitted by Farnia Fresnel, President http Fresnel, President http://www.seas.upenn.edu/alumni/alumnisociety A new Alumni liaison committee has been

  5. Shell model Monte Carlo methods

    SciTech Connect (OSTI)

    Koonin, S.E. [California Inst. of Tech., Pasadena, CA (United States). W.K. Kellogg Radiation Lab.; Dean, D.J. [Oak Ridge National Lab., TN (United States)

    1996-10-01T23:59:59.000Z

    We review quantum Monte Carlo methods for dealing with large shell model problems. These methods reduce the imaginary-time many-body evolution operator to a coherent superposition of one-body evolutions in fluctuating one-body fields; resultant path integral is evaluated stochastically. We first discuss the motivation, formalism, and implementation of such Shell Model Monte Carlo methods. There then follows a sampler of results and insights obtained from a number of applications. These include the ground state and thermal properties of pf-shell nuclei, thermal behavior of {gamma}-soft nuclei, and calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are discussed. 87 refs.

  6. ASSOCIATED STUDENTS, CSUF, INC. Application Form for Vice President of Finance '12-'13

    E-Print Network [OSTI]

    de Lijser, Peter

    ASSOCIATED STUDENTS, CSUF, INC. Application Form for Vice President of Finance '12-'13 Address) What related experience do you have that qualifies you for theVice President of Finance position? 2) Explain your views on the role played by the Vice President of Finance as it pertains to: a. ASI Executive

  7. Vice President of Finance and Business Operations, Treasurer and Chief Financial Officer

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Rick Nork Vice President of Finance and Business Operations, Treasurer and Chief Financial Officer Senior Real Estate Officer Finance and Business Operations Alicia Pendleton Associate Vice President Kohrman Associate Vice President Budget, Planning and Analysis FINANCE AND BUSINESS OPERATIONS May 2014

  8. Past and future of grid shell structures

    E-Print Network [OSTI]

    Paoli, Cťline (Cťline Aude)

    2007-01-01T23:59:59.000Z

    Because of their original organic shape and the column free space that they provide, the design of grid shell structures challenges architects and structural engineers in more than one way. Very few grid shell building ...

  9. Finance President's Council Section Page 6 Motion: 199610.30

    E-Print Network [OSTI]

    Bolch, Tobias

    Finance President's Council Section Page 6 Motion: 199610.30 UNIVERSITY OF NORTHERN BRITISH by the Finance Department. 1. Cheque Requisition Procedure Complete the Cheque Requisition form in full as indicated (form available from the Finance department). This includes the name of the payee, address, amount

  10. Finance President's Council Section Page 31 Motion: 199204.09

    E-Print Network [OSTI]

    Bolch, Tobias

    Finance President's Council Section Page 31 Motion: 199204.09 UNIVERSITY OF NORTHERN BRITISH guarantee that a card will be issued. d) Approved application forms must be forwarded to the Finance.1.4 Reimbursement should take approximately 10 working days from the Finance Department's receipt of the Travel

  11. WATER: THREATS AND OPPORTUNITIES Recommendations for the Next President

    E-Print Network [OSTI]

    WATER: THREATS AND OPPORTUNITIES Recommendations for the Next President Dr. Peter H. Gleick1 October 9, 2008 Safe and adequate fresh water resources are central to the economy, foreign policy domestic and international challenges related to fresh water. These challenges will require unilateral

  12. 4-H Club Officer Handbook - Second Vice President

    E-Print Network [OSTI]

    Howard, Jeff W.

    2006-08-09T23:59:59.000Z

    This section from the 4-H Club Officer Handbook features the multi-faceted role of the Second Vice President. It covers the officer's duties and how to plan and lead recreational activities. Also highlighted are the qualities of a recreation leader....

  13. Dr. Elsa A. Murano Professor and President Emerita

    E-Print Network [OSTI]

    Maccabe, Barney

    activities, increasing the funding obtained from the state for research focused on biofuels, and securing by establishing the office of Vice President for Global Initiatives and by launching a new center in Costa Rica in securing $14 million to recruit world-renown research faculty through an increase in the state

  14. Media Relations Policy Responsible Administrative Unit: Office of the President

    E-Print Network [OSTI]

    with the media (i.e., print and online publications, television, radio and new media) be accurate, appropriateMedia Relations Policy Responsible Administrative Unit: Office of the President Policy Contact on media relations. 2.0 POLICY 2.1 Institutional Outreach to the Media: All announcements to the media from

  15. A Message from the NPS Vice President & Dean of Research

    E-Print Network [OSTI]

    committed to adhering to all applicable U.S. export controls. Export control laws and regulations export control regulations, requirements, and procedures. ∑ To identify resources you can use to assure Bibber, Vice President & Dean of Research #12;What Are Export Controls? Export controls are designed

  16. Gerry McCartney Vice President for Information

    E-Print Network [OSTI]

    Hedrick, Chief Information Security Officer, Interim IT Security and Policy Identity & Access Management Information Security Policy & Compliance Information Security Services Brent Drake Chief Data Officer, OfficeGerry McCartney Vice President for Information Technology and System Chief Information Officer

  17. National service with ten presidents of the United States

    SciTech Connect (OSTI)

    Seaborg, G.T.

    1992-10-01T23:59:59.000Z

    This document is a biography of the renowned nuclear chemist, Glenn T. Seaborg. It covers his career over the presidential terms of Franklin Roosevelt through George Bush. It contains many personnel accounts of historic events. Photographs of Seaborg and the various Presidents are presented.

  18. Policy V.6.1.1 Responsible Official: Vice President

    E-Print Network [OSTI]

    Hayden, Nancy J.

    Policy V.6.1.1 Responsible Official: Vice President for Research Effective Date: July 1, 2012 Cost Policy on Sponsored Agreements Policy Statement Direct, indirect and allowable costs shall and the University's cost accounting standards. Reason for the Policy This policy statement and the guidelines

  19. OFFICE OF THE PRESIDENT DIGITAL AND MEDIA COPYRIGHT COMPLIANCE

    E-Print Network [OSTI]

    Hemmers, Oliver

    OFFICE OF THE PRESIDENT DIGITAL AND MEDIA COPYRIGHT COMPLIANCE RESPONSIBLE ADMlNISTRA TOR and supervisors, deans, directors, and department heads should read this policy. #12;DIGITAL AND MEDIA COPYRIGHT will investigate all digital and media copyright infringement complaints and take appropriate action. NOTE

  20. EXECUTIVE OFFICE OF THE PRESIDENT OFFICE OF MANAGEMENT AND BUDGET

    E-Print Network [OSTI]

    EXECUTIVE OFFICE OF THE PRESIDENT OFFICE OF MANAGEMENT AND BUDGET WASHINGTON, D. C . 20503.C. 20515 Dear Mr. Speaker: Enclosed please find the Office ofManagement and Budget (OMB) Report to the Congress on the sequestration for fiscal year (FY) 2013 required by section 251A of the Balanced Budget

  1. EXECUTIVE OFFICE OF THE PRESIDENT OFFICE OF MANAGEMENT AND BUDGET

    E-Print Network [OSTI]

    Myers, Lawrence C.

    EXECUTIVE OFFICE OF THE PRESIDENT OFFICE OF MANAGEMENT AND BUDGET WASHINGTON, D.C. 20503 March 1 Balanced Budget and Emergency Deficit Control Act of 1985, as Amended This memorandum is to inform) in accordance with section 251A of the Balanced Budget and Emergency Deficit Control Act, as amended (BBEDCA), 2

  2. Ms. Maushumi, Head Mistress Babul Sarkar, Vice President

    E-Print Network [OSTI]

    Nahar, Sultana Nurun

    Ms. Maushumi, Head Mistress Babul Sarkar, Vice President Char Domdoama Primary School Vill: Char Razzaq-Shamsun Best Teacher Award and Abdul Awal Sarkar Best Student Awards in Char Domdoma Primary School Dear Ms. Maushumi and Mr. Sarkar, My proposal for the introduction of one teaching and three

  3. Judy Gensha,, PhD President, University of South Florida

    E-Print Network [OSTI]

    Meyers, Steven D.

    Judy Gensha,, PhD President, University of South Florida Morsani College, MPH Vice Dean, Educa:on LyneHe J. Menezes, PhD Assistant Dean Interna Zinder, PhD, ATC Director, Athle:c Training Program John S. Curran, MD Senior

  4. Applications of Continuum Shell Model

    E-Print Network [OSTI]

    Alexander Volya

    2006-05-16T23:59:59.000Z

    The nuclear many-body problem at the limits of stability is considered in the framework of the Continuum Shell Model that allows a unified description of intrinsic structure and reactions. Technical details behind the method are highlighted and practical applications combining the reaction and structure pictures are presented.

  5. Shell Formation and Bone Strength Laying Hens

    E-Print Network [OSTI]

    Shell Formation and Bone Strength in Laying Hens Effects of Age, Daidzein and Exogenous Estrogen Cover aquarelle: E. Spörndly-Nees #12;Shell Formation and Bone Strength in Laying Hens Effects of Age eggshells as shell quality declines with age during the laying period. This is a concern for food safety

  6. President's I u From the Desk of Gregory G. Dell'Omo, Ph.D., President of Robert Morris University

    E-Print Network [OSTI]

    VanDieren, Monica

    to quality ≠ that's why students come to RMU. In this year-in-review edition of the President's Insider, we much in recent years. The answer can provide a blueprint for the future. If you can't explain why excellent academic credentials, have years of professional experience in the fields they are teaching

  7. i E REPORT OF THE PRESIDENT OF THE UNIVERSITY OF BRITISH COLUMBIA FOR THE ACAD A FOR THE ACADEMIC YEAR 1967-68 THE REPORT OF THE PRESIDENT OF THE UNIVERSITY

    E-Print Network [OSTI]

    Pulfrey, David L.

    i E REPORT OF THE PRESIDENT OF THE UNIVERSITY OF BRITISH COLUMBIA FOR THE ACAD A FOR THE ACADEMIC YEAR 1967-68 THE REPORT OF THE PRESIDENT OF THE UNIVERSITY BRITISH COLUMBIA FOR THE ACADEMIC YEAR 1967-68THE REPORT OF THE PRESIDENT 0 THE PRESIDENT OF THE UNIVERSITY OF BRITISH COLUMBIA FOR THE ACADEMIC

  8. On chaotic behavior of gravitating stellar shells

    E-Print Network [OSTI]

    M. V. Barkov; G. S. Bisnovatyi-Kogan; A. I. Neishtadt; V. A. Belinski

    2004-12-10T23:59:59.000Z

    Motion of two gravitating spherical stellar shells around a massive central body is considered. Each shell consists of point particles with the same specific angular momenta and energies. In the case when one can neglect the influence of gravitation of one ("light") shell onto another ("heavy") shell ("restricted problem") the structure of the phase space is described. The scaling laws for the measure of the domain of chaotic motion and for the minimal energy of the light shell sufficient for its escape to infinity are obtained.

  9. Turbine blade with spar and shell

    DOE Patents [OSTI]

    Davies, Daniel O. (Palm City, FL); Peterson, Ross H. (Loxahatchee, FL)

    2012-04-24T23:59:59.000Z

    A turbine blade with a spar and shell construction in which the spar and the shell are both secured within two platform halves. The spar and the shell each include outward extending ledges on the bottom ends that fit within grooves formed on the inner sides of the platform halves to secure the spar and the shell against radial movement when the two platform halves are joined. The shell is also secured to the spar by hooks extending from the shell that slide into grooves formed on the outer surface of the spar. The hooks form a serpentine flow cooling passage between the shell and the spar. The spar includes cooling holes on the lower end in the leading edge region to discharge cooling air supplied through the platform root and into the leading edge cooling channel.

  10. Colloidal liquids of yolk-shell particles

    E-Print Network [OSTI]

    L. E. Sanchez Diaz; E. C. Cortes-Morales; X. Li; Wei-Ren Chen; M. Medina-Noyola

    2014-07-23T23:59:59.000Z

    In this paper we develop statistical mechanical tools to describe the intermediate- and long-time collective- and self-diffusion properties of a liquid of strongly-interacting hollow spherical particles (shells), each bearing a smaller solid sphere (yolk) in its interior. To decouple two complex effects we assume that the hydrodynamic interactions can be accounted for through the effective short-time self-diffusion coefficients $D^0_s$ and $D^0_y$ that describe the short-time Brownian motion of the yolk and the shell particles, and develop a self-consistent generalized Langevin equation theory to describe the intermediate- and long-time effects of the direct shell-shell, yolk-shell and yolk-yolk interactions. In a concrete application, we consider the simplest yolk-shell model system involving purely repulsive hard-body interactions between all (shell and yolk) particles. Using a softened version of these interparticle potentials we perform Brownian dynamics simulations to determine the mean squared displacement of both types of particles, as well as the intermediate scattering function of the yolk-shell complex. We compare the theoretical and simulation results between them, and with the results for the same system in the absence of yolks. We find that the yolks, which have no effect on the shell-shell static structure, influences the dynamic properties in a predictable manner, fully captured by the theory.

  11. The fragmentation of expanding shells I: Limitations of the thin--shell approximation

    E-Print Network [OSTI]

    Dale, James E; Whitworth, Anthony; Palous, Jan

    2009-01-01T23:59:59.000Z

    We investigate the gravitational fragmentation of expanding shells in the context of the linear thin--shell analysis. We make use of two very different numerical schemes; the FLASH Adaptive Mesh Refinement code and a version of the Benz Smoothed Particle Hydrodynamics code. We find that the agreement between the two codes is excellent. We use our numerical results to test the thin--shell approximation and we find that the external pressure applied to the shell has a strong effect on the fragmentation process. In cases where shells are not pressure--confined, the shells thicken as they expand and hydrodynamic flows perpendicular to the plane of the shell suppress fragmentation at short wavelengths. If the shells are pressure--confined internally and externally, so that their thickness remains approximately constant during their expansion, the agreement with the analytical solution is better.

  12. Enduring Stockpile CMM Shell Inspection Plan (U)

    SciTech Connect (OSTI)

    Montano, Joshua D. [Los Alamos National Laboratory; Flores, Randy A. [Los Alamos National Laboratory

    2012-06-13T23:59:59.000Z

    The slides are intended to serve as a high level summary of the CMM Shell Inspection Plan as presented to Pu Sustainment Legacy Pit Production IPT.

  13. Sandia National Laboratories: QD core shell heterostructures

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

    QD core shell heterostructures Introduction of Prof. David Kelley and UC Merced to SSLS On January 11, 2012, in Energy Efficiency, News, News & Events, Partnership, Solid-State...

  14. Material with core-shell structure

    DOE Patents [OSTI]

    Luhrs, Claudia (Rio Rancho, NM); Richard, Monique N. (Ann Arbor, MI); Dehne, Aaron (Maumee, OH); Phillips, Jonathan (Rio Rancho, NM); Stamm, Kimber L. (Ann Arbor, MI); Fanson, Paul T. (Brighton, MI)

    2011-11-15T23:59:59.000Z

    Disclosed is a material having a composite particle, the composite particle including an outer shell and a core. The core is made from a lithium alloying material and the outer shell has an inner volume that is greater in size than the core of the lithium alloying material. In some instances, the outer mean diameter of the outer shell is less than 500 nanometers and the core occupies between 5 and 99% of the inner volume. In addition, the outer shell can have an average wall thickness of less than 100 nanometers.

  15. UC President Mark Yudof Announces Appointment of Paul Alivisatos as Berkeley Lab Director

    ScienceCinema (OSTI)

    Yudof, Mark

    2013-05-29T23:59:59.000Z

    In this video, broadcast to Berkeley Lab staff on Nov. 20, 2009, UC President Mark Yudof announces Paul Alivisatos as the new director of Lawrence Berkeley National Laboratory

  16. President Obama Announces Commitments and Executive Actions to Advance Solar Deployment

    Broader source: Energy.gov [DOE]

    Today, President Obama announced more than 300 private and public sector commitments to create jobs and cut carbon pollution by advancing solar deployment and energy efficiency. The commitments...

  17. Vice President Biden Kicks Off Five Days of Earth Day Activities...

    Office of Environmental Management (EM)

    Kicks Off Five Days of Earth Day Activities with Announcement of Major New Energy Efficiency Effort Vice President Biden Kicks Off Five Days of Earth Day Activities with...

  18. Apparatus and methods for installing, removing and adjusting an inner turbine shell section relative to an outer turbine shell section

    DOE Patents [OSTI]

    Leach, David (Niskayuna, NY); Bergendahl, Peter Allen (Scotia, NY); Waldo, Stuart Forrest (Salem, NC); Smith, Robert Leroy (Milford, OH); Phelps, Robert Kim (Milford, OH)

    2001-01-01T23:59:59.000Z

    A turbine includes upper and lower inner shell sections mounting the nozzles and shrouds and which inner shell is supported by pins secured to a surrounding outer shell. To disassemble the turbine for access to the inner shell sections and rotor, an alignment fixture is secured to the lower outer shell section and has pins engaging the inner shell section. To disassemble the turbine, the inner shell weight is transferred to the lower outer shell section via the alignment fixture and cradle pins. Roller assemblies are inserted through access openings vacated by support pins to permit rotation of the lower inner shell section out of and into the lower outer shell section during disassembly and assembly. The alignment fixture includes adjusting rods for adjusting the inner shell axially, vertically, laterally and about a lateral axis. A roller over-cage is provided to rotate the inner shell and a dummy shell to facilitate assembly and disassembly in the field.

  19. Transitional nuclei near shell closures

    SciTech Connect (OSTI)

    Mukherjee, G. [Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064 (India); Pai, H. [Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064, India and Present Address: Institut fŁr Kernphysik, Technische Universitšt Darmstadt, Schlossgartenstrasse 9, 64289 Darmstadt (Germany)

    2014-08-14T23:59:59.000Z

    High spin states in Bismuth and Thallium nuclei near the Z = 82 shell closure and Cesium nuclei near the N = 82 shell closure in A = 190 and A = 130 regions, respectively, have been experimentally investigated using heavy-ion fusion evaporation reaction and by detecting the gamma rays using the Indian National Gamma Array (INGA). Interesting shape properties in these transitional nuclei have been observed. The results were compared with the neighboring nuclei in these two regions. The total Routhian surface (TRS) calculations have been performed for a better understanding of the observed properties. In mass region A = 190, a change in shape from spherical to deformed has been observd around neutron number N = 112 for the Bi (Z = 83) isotopes with proton number above the magic gap Z = 82, whereas, the shape of Tl (Z = 81) isotopes with proton number below the magic gap Z = 82 remains stable as a function of neutron number. An important transition from aplanar to planar configuration of angular momentum vectors leading to the occurance of nuclar chirality and magnetic rotation, respectively, has been proposed for the unique parity ?h{sub 11/2}??h{sub 11/2} configuration in Cs isotopes in the mass region A ? 130 around neutron number N = 79. These results are in commensurate with the TRS calculations.

  20. Porous Core-Shell Nanostructures for Catalytic Applications

    E-Print Network [OSTI]

    Ewers, Trevor David

    2012-01-01T23:59:59.000Z

    Titanium Incorporation within Silica Shell . 7.3 Pyridine5 Oxidative Growth of ZnO for Core-Shell Catalysis 5.13.3.2 Shell interaction dependent catalysis 3.3.3 Thermal

  1. Sandia National Laboratories: About Sandia: Leadership: President and

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

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

  2. Sandia National Laboratories: About Sandia: Leadership: Vice President,

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

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

  3. Sandia National Laboratories: About Sandia: Leadership: Vice President,

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

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

  4. Sandia National Laboratories: About Sandia: Leadership: Vice President,

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

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

  5. Sandia National Laboratories: About Sandia: Leadership: Vice President,

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

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

  6. Sandia National Laboratories: About Sandia: Leadership: Vice President,

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

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

  7. Sandia National Laboratories: About Sandia: Leadership: Vice President,

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

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

  8. Sandia National Laboratories: About Sandia: Leadership: Vice President,

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

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

  9. Thin Shell Wormhole in Heterotic String Theory

    E-Print Network [OSTI]

    F. Rahaman; M. Kalam; S. Chakraborti

    2006-11-25T23:59:59.000Z

    Using 'Cut and Paste' technique, we develop a thin shell wormhole in heterotic string theory. We determine the surface stresses, which are localized in the shell, by using Darmois-Israel formalism. The linearized stability of this thin wormhole is also analyzed.

  10. The wave function of a gravitating shell

    E-Print Network [OSTI]

    V. I. Dokuchaev; S. V. Chernov

    2010-10-01T23:59:59.000Z

    We have calculated a discrete spectrum and found an exact analytical solution in the form of Meixner polynomials for the wave function of a thin gravitating shell in the Reissner-Nordstrom geometry. We show that there is no extreme state in the quantum spectrum of the gravitating shell, as in the case of extreme black hole.

  11. Thick-shell nanocrystal quantum dots

    DOE Patents [OSTI]

    Hollingsworth, Jennifer A. (Los Alamos, NM); Chen, Yongfen (Eugene, OR); Klimov, Victor I. (Los Alamos, NM); Htoon, Han (Los Alamos, NM); Vela, Javier (Los Alamos, NM)

    2011-05-03T23:59:59.000Z

    Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm and an outer shell, where said outer shell comprises multiple monolayers, wherein at least 30% of the quantum dots have an on-time fraction of 0.80 or greater under continuous excitation conditions for a period of time of at least 10 minutes.

  12. Local shell-to-shell energy transfer via nonlocal Interactions in fluid turbulence

    E-Print Network [OSTI]

    Mahendra K. Verma; Arvind Ayyer; Olivier Debliquy; Shishir Kumar; Amar V. Chandra

    2005-10-19T23:59:59.000Z

    In this paper we analytically compute the strength of nonlinear interactions in a triad, and the energy exchanges between wavenumber shells in incompressible fluid turbulence. The computation has been done using first-order perturbative field theory. In three dimension, magnitude of triad interactions is large for nonlocal triads, and small for local triads. However, the shell-to-shell energy transfer rate is found to be local and forward. This result is due to the fact that the nonlocal triads occupy much less Fourier space volume than the local ones. The analytical results on three-dimensional shell-to-shell energy transfer match with their numerical counterparts. In two-dimensional turbulence, the energy transfer rates to the near-by shells are forward, but to the distant shells are backward; the cumulative effect is an inverse cascade of energy.

  13. Morphology and Electronic Structure of the Oxide Shell on the...

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

    Electronic Structure of the Oxide Shell on the Surface of Iron Nanoparticles. Morphology and Electronic Structure of the Oxide Shell on the Surface of Iron Nanoparticles. Abstract:...

  14. Morphology and Oxide Shell Structure of Iron Nanoparticles Grown...

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

    Oxide Shell Structure of Iron Nanoparticles Grown by Sputter-Gas-Aggregation. Morphology and Oxide Shell Structure of Iron Nanoparticles Grown by Sputter-Gas-Aggregation. Abstract:...

  15. Synthesis of Lutetium Phosphate/Apoferritin Core-Shell Nanoparticles...

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

    Lutetium PhosphateApoferritin Core-Shell Nanoparticles for Potential Applications in Radioimmunoimaging and Synthesis of Lutetium PhosphateApoferritin Core-Shell Nanoparticles...

  16. Nanoscale Alloying, Phase-Segregation, and Core-Shell Evolution...

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

    Alloying, Phase-Segregation, and Core-Shell Evolution of Gold-Platinum Nanoparticles and Their Electrocatalytic Effect Nanoscale Alloying, Phase-Segregation, and Core-Shell...

  17. Impact of External Heat-shielding Techniques on Shell Surface...

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

    External Heat-shielding Techniques on Shell Surface Temperatures and Dynamic Shell Thermal Deformation of Diesel Engine Emission Control Systems Impact of External Heat-shielding...

  18. Biocompatible core-shell magnetic nanoparticles for cancer treatment...

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

    Biocompatible core-shell magnetic nanoparticles for cancer treatment. Biocompatible core-shell magnetic nanoparticles for cancer treatment. Abstract: Non-toxic magnetic...

  19. Shell middle distillate hydrogenation process

    SciTech Connect (OSTI)

    Lucien, J.P. [Companie Rhenane de Raffinage Reichstett, Reichstett Vendenheim (France); Berg, J.P. van den; Hooijdonk, H.M.J.H. van; Thielemans, G.L.B. [Shell Internationale Petroleum Mij., The Hague (Netherlands); Germaine, G. [Shell Recherche SA, Grand-Couronne (France); Gjers, M. [Shell Raffinaderi AB, Gothenburg (Sweden)

    1994-12-31T23:59:59.000Z

    The strive towards cleaner environment has lead to low sulfur specifications for middle distillate fuels. In addition compositional specifications are presently debated. Thus, to meet future emissions standards regarding, specifically, particulates emissions, the motor industry calls for improved automotive gasoil quality. Although automotive gasoil quality affects emissions from diesel engines it is considered less influential than engine design and maintenance. Sulfur, density and cetane number are the fuel properties having the greatest influence on diesel engine emissions although also aromatics and endpoint specifications have been defined in environmentally adopted government initiatives. This paper reviews the options which are available to tackle these new requirements. The high severity single stage concept (using conventional mixed sulfides catalysts) will be discussed in its potential to meet more severe product requirements as well as in terms of its limitations, especially at the point of aromatics saturation and cetaine upgrading. Furthermore, it is shown that the option of severe hydrotreating followed by hydrogenation with conventional noble metal catalysts is preferred if deep aromatics saturation is aimed at. However, this conventional two stage concept has limitations with respect to heaviness and sulfur and nitrogen content of feedstocks. The new Shell Middle Distillate Hydrogenation (SMDH) technology, applying a (semi) two stage approach based on the Shell developed hydrogenation catalyst is presented. The SMDH process will be discussed in its potential to break the limitations of the conventional options. The new catalyst is crucial in this process and allows a highly integrated mode of operation. A number of applications of this novel process will be discussed.

  20. NOTE: Refer to Organizational Chart for the Senior Vice President and Provost to see additional Vice Presidents and College Deans. COLLEGE DEANS (8): Agriculture and Life Sciences, Architecture and Urban Studies, Pamplin College of Business, Engineering,

    E-Print Network [OSTI]

    Buehrer, R. Michael

    NOTE: Refer to Organizational Chart for the Senior Vice President and Provost to see additional's Organizational Chart June 2014 #12;

  1. President Obama honors BME researcher Jeffrey Capadona with Presidential Early Career Award

    E-Print Network [OSTI]

    Rollins, Andrew M.

    President Barack Obama Monday named biomedical engineering Professor Jeffrey R. Capadona one of the nationPresident Obama honors BME researcher Jeffrey Capadona with Presidential Early Career Award to the White House. They pointed to the materials used in probes and implants that record activity

  2. Recommendations for the Next President Pacific Institute Fresh Water: Threats and Opportunities

    E-Print Network [OSTI]

    . Gleicki October 9, 2008 Lack of a National Water Policy As we enter the 21st century, pressures on waterRecommendations for the Next President Pacific Institute Fresh Water: Threats and Opportunities WATER: THREATS AND OPPORTUNITIES Recommendations for the Next President Background Material Dr. Peter H

  3. John M. (Mike) McConnell Senior Vice President Booz Allen Hamilton

    E-Print Network [OSTI]

    John M. (Mike) McConnell Senior Vice President Booz Allen Hamilton Former Director of National for the leading consulting firm, Booz Allen Hamilton, and he is a member of the firm's Leadership Team. Mr. Mc of Staff, as Director of the National Security Agency, and later as Senior Vice President with Booz Allen

  4. 2010MIT SOLAR ELECTRIC VEHICLE TEAM A MESSAGE FROM THE PRESIDENT

    E-Print Network [OSTI]

    2010MIT SOLAR ELECTRIC VEHICLE TEAM #12;A MESSAGE FROM THE PRESIDENT President Hockfield poses with SEVT members at an outreach event ONE #12;The MIT Solar Electric Vehicle Team (SEVT) is a student of innovators. Team Goals: Facilitate continuous innovation and development in all fields related to solar

  5. A LAGRANGIAN-EULERIAN SHELL-FLUID COUPLING ALGORITHM BASED ON LEVEL

    E-Print Network [OSTI]

    Cirak, Fehmi

    is demonstrated with an airbag deployment simulation. Key words: shell, fluid, shell-fluid interaction, finite

  6. Local and Global Casimir Energies for a Semitransparent Cylindrical Shell

    E-Print Network [OSTI]

    Milton, Kim

    Local and Global Casimir Energies for a Semitransparent Cylindrical Shell In¬īes Cavero the -function shell, the local energy density diverges as the surface of the shell is approached; the divergence by physical boundaries, such as the Casimir energy due to a perfectly conducting spherical shell [1], has been

  7. Expanding and Collapsing Scalar Field Thin Shell

    E-Print Network [OSTI]

    M. Sharif; G. Abbas

    2012-08-27T23:59:59.000Z

    This paper deals with the dynamics of scalar field thin shell in the Reissner-Nordstr$\\ddot{o}$m geometry. The Israel junction conditions between Reissner-Nordstr$\\ddot{o}$m spacetimes are derived, which lead to the equation of motion of scalar field shell and Klien-Gordon equation. These equations are solved numerically by taking scalar field model with the quadratic scalar potential. It is found that solution represents the expanding and collapsing scalar field shell. For the better understanding of this problem, we investigate the case of massless scalar field (by taking the scalar field potential zero). Also, we evaluate the scalar field potential when $p$ is an explicit function of $R$. We conclude that both massless as well as massive scalar field shell can expand to infinity at constant rate or collapse to zero size forming a curvature singularity or bounce under suitable conditions.

  8. Off-shell two loop QCD vertices

    E-Print Network [OSTI]

    J. A. Gracey

    2014-06-03T23:59:59.000Z

    We calculate the triple gluon, ghost-gluon and quark-gluon vertex functions at two loops in the MSbar scheme in the chiral limit for an arbitrary linear covariant gauge when the external legs are all off-shell.

  9. Wireless energy transfer between anisotropic metamaterials shells

    SciTech Connect (OSTI)

    DŪaz-Rubio, Ana; Carbonell, Jorge; SŠnchez-Dehesa, Josť, E-mail: jsdehesa@upv.es

    2014-06-15T23:59:59.000Z

    The behavior of strongly coupled Radial Photonic Crystals shells is investigated as a potential alternative to transfer electromagnetic energy wirelessly. These sub-wavelength resonant microstructures, which are based on anisotropic metamaterials, can produce efficient coupling phenomena due to their high quality factor. A configuration of selected constitutive parameters (permittivity and permeability) is analyzed in terms of its resonant characteristics. The coupling to loss ratio between two coupled resonators is calculated as a function of distance, the maximum (in excess of 300) is obtained when the shells are separated by three times their radius. Under practical conditions an 83% of maximum power transfer has been also estimated. -- Highlights: ēAnisotropic metamaterial shells exhibit high quality factors and sub-wavelength size. ēExchange of electromagnetic energy between shells with high efficiency is analyzed. ēStrong coupling is supported with high wireless transfer efficiency. ēEnd-to-end energy transfer efficiencies higher than 83% can be predicted.

  10. Finite element analysis of shells with layers

    E-Print Network [OSTI]

    Hiller, Jean-FranÁois, 1974-

    2002-01-01T23:59:59.000Z

    It is well established that thin shell structures frequently feature narrow bands of strain concentration and localized displacement irregularities referred to as boundary and internal layers. It is crucial to capture these ...

  11. Plan for shell + sensor New sensors calibration

    E-Print Network [OSTI]

    Hone, James

    ) Shells arrive Verify dimensions Remove ICRH chamber Build Cu Plas mount Install Cu Plasma Run Cu Plasma Wiki for progress Make HDA mounts VF coil spacer blocks Fix upper OH outer coil GDC chamber heater

  12. Shell model study for neutron-rich sd-shell nuclei

    E-Print Network [OSTI]

    Kazunari Kaneko; Yang Sun; Takahiro Mizusaki; Munetake Hasegawa

    2011-01-08T23:59:59.000Z

    The microscopic structure of neutron-rich sd-shell nuclei is investigated by using the spherical shell-model in the sd-pf valence space with the extended pairing plus quadrupole-quadrupole forces accompanied by the monopole interaction (EPQQM). The calculation reproduces systematically the known energy levels for even-even and odd-mass nuclei including the recent data for 43S, 46S and 47Ar. In particular, the erosion of the N=28 shell closure in 42Si can be explained. Our EPQQM results are compared with other shell-model calculations with the SDPF-NR and SDPF-U effective interactions.

  13. Experimental study of upper sd shell nuclei and evolution of sd-fp shell gap

    SciTech Connect (OSTI)

    Sarkar, M. Saha [Saha Institute of Nuclear Physics, Kolkata - 700064 (India)

    2012-06-27T23:59:59.000Z

    The intruder orbitals from the fp shell play important role in the structure of nuclei around the line of stability in the upper sd shell. Experimentally we have studied {sup 35}Cl, {sup 30}P, {sup 36}Cl, {sup 37}Ar and {sup 34}Cl in this mass region using the INGA setup. Large basis cross-shell shell model calculations have indicated the need for change of the sd-fp energy gap for reliable reproduction of negative parity and high spin positive parity states. Indication of population of states of large deformation has been found in our data. Theoretical interpretation of these states has been discussed.

  14. Double shell tank waste analysis plan

    SciTech Connect (OSTI)

    Mulkey, C.H.; Jones, J.M.

    1994-12-15T23:59:59.000Z

    Waste analysis plan for the double shell tanks. SD-WM-EV-053 is Superseding SD-WM-EV-057.This document provides the plan for obtaining information needed for the safe waste handling and storage of waste in the Double Shell Tank Systems. In Particular it addresses analysis necessary to manage waste according to Washington Administrative Code 173-303 and Title 40, parts 264 and 265 of the Code of Federal Regulations.

  15. Non-Planar On-Shell Diagrams

    E-Print Network [OSTI]

    Sebastian Franco; Daniele Galloni; Brenda Penante; Congkao Wen

    2015-03-17T23:59:59.000Z

    We initiate a systematic study of non-planar on-shell diagrams in N=4 SYM and develop powerful technology for doing so. We introduce canonical variables generalizing face variables, which make the dlog form of the on-shell form explicit. We make significant progress towards a general classification of arbitrary on-shell diagrams by means of two classes of combinatorial objects: generalized matching and matroid polytopes. We propose a boundary measurement that connects general on-shell diagrams to the Grassmannian. Our proposal exhibits two important and non-trivial properties: positivity in the planar case and it matches the combinatorial description of the diagrams in terms of generalized matroid polytopes. Interestingly, non-planar diagrams exhibit novel phenomena, such as the emergence of constraints on Plucker coordinates beyond Plucker relations when deleting edges, which are neatly captured by the generalized matching and matroid polytopes. This behavior is tied to the existence of a new type of poles in the on-shell form at which combinations of Plucker coordinates vanish. Finally, we introduce a prescription, applicable beyond the MHV case, for writing the on-shell form as a function of minors directly from the graph.

  16. Core-Shell Structured Magnetic Ternary Nanocubes

    SciTech Connect (OSTI)

    Wang, Lingyan; Wang, Xin; Luo, Jin; Wanjala, Bridgid N.; Wang, Chong M.; Chernova, Natalya; Engelhard, Mark H.; Liu, Yao; Bae, In-Tae; Zhong, Chuan-Jian

    2010-12-01T23:59:59.000Z

    While transition metal-doped ferrite nanoparticles constitute an important class of soft magnetic nanomaterials with spinel structures, the ability to control the shape and composition would enable a wide range of applications in homogeneous or heterogeneous reactions such as catalysis and magnetic separation of biomolecules. This report describes novel findings of an investigation of core-shell structured MnZn ferrite nanocubes synthesized in organic solvents by manipulating the reaction temperature and capping agent composition in the absence of the conventionally-used reducing agents. The core-shell structure of the highly-monodispersed nanocubes (~20 nm) are shown to consist of an Fe3O4 core and an (Mn0.5Zn0.5)(Fe0.9, Mn1.1)O4 shell. In comparison with Fe3O4 and other binary ferrite nanoparticles, the core-shell structured nanocubes were shown to display magnetic properties regulated by a combination of the core-shell composition, leading to a higher coercivity (~350 Oe) and field-cool/zero-field-cool characteristics drastically different from many regular MnZn ferrite nanoparticles. The findings are discussed in terms of the unique core-shell composition, the understanding of which has important implication to the exploration of this class of soft magnetic nanomaterials in many potential applications such as magnetic resonance imaging, fuel cells, and batteries.

  17. Day 1 with PowerShell Things I wish I'd known when I started using PowerShell

    E-Print Network [OSTI]

    Cook, John D.

    on the subject. Set the execution policy PowerShell was designed from the beginning with security in mind. Power details.. At line:1 char:13 + .\\myScript.ps1 PowerShell launch faster When Microsoft releasedDay 1 with PowerShell Things I wish I'd known when I started using PowerShell John D. Cook http

  18. projet conjoint parrain par la Fondation Shell et Shell Gabon, des chercheurs de l'Institution

    E-Print Network [OSTI]

    Baker, Robert J.

    projet conjoint parrainť par la Fondation Shell et Shell Gabon, des chercheurs de l, le Cameroun et la Guinťe-…quatoriale. Le pays est baignť par un climat tropical humide avec une'orientation par ťcholocation des MicrochiroptŤres reprťsente une adaptation ťvolutive unique ŗ la vie nocturne

  19. Plasmonic Enhancement of Dye-Sensitized Solar Cells Using Core-Shell-Shell Nanostructures

    E-Print Network [OSTI]

    Plasmonic Enhancement of Dye-Sensitized Solar Cells Using Core- Shell-Shell Nanostructures Stafford and demonstrate near-field plasmonic enhancement of dye-sensitized solar cells (DSSCs) incorporating them being researched, dye-sensitized solar cells (DSSCs) are a promising alternative to traditional solar

  20. Removable inner turbine shell with bucket tip clearance control

    DOE Patents [OSTI]

    Sexton, Brendan F. (Clifton Park, NY); Knuijt, Hans M. (Niskayuna, NY); Eldrid, Sacheverel Q. (Saratoga Springs, NY); Myers, Albert (Amsterdam, NY); Coneybeer, Kyle E. (Schenectady, NY); Johnson, David Martin (Ballston Lake, NY); Kellock, Iain R. (Clifton Park, NY)

    2000-01-01T23:59:59.000Z

    A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.

  1. AUGUST 31 (VS. UTAH STATE) Nailing Andrew Jackson: The President and

    E-Print Network [OSTI]

    Wang, Xiaorui "Ray"

    AUGUST 31 (VS. UTAH STATE) Nailing Andrew Jackson: The President and His Papers Daniel M. Feller, Professor Department of History SEPTEMBER 6 (VS. ARKANSAS STATE) Marvels of Matter All Around Us Norman

  2. Office of the Vice President for Research UGA IACUC Visitor Policy

    E-Print Network [OSTI]

    Arnold, Jonathan

    Office of the Vice President for Research UGA IACUC Visitor Policy Approved by the UGA IACUC with animals, may only observe, and are expected to adhere to all UGA requirements, rules and policies related

  3. ASSISTANT TO THE PRESIDENT & DIRECTOR OF EXECUTIVE OFFICE OPERATIONS & EVENTS DIRECTOR OF INTERNAL AUDIT

    E-Print Network [OSTI]

    Kearfott, R. Baker

    FOR ACADEMIC AFFAIRS James Henderson VICE PRESIDENT FOR STUDENT AFFAIRS Patricia F. Cottonham ASSOCIATE DEAN TECHNOLOGY COMPUTING SUPPORT SERVICES Patrick Landry DIRECTOR, INFORMATION SYSTEMS Sam Bullard DIRECTOR ACCOUNTS PAYABLE RISK INSURANCE BUDGET ANALYST Vacant FINANCIAL LIAISON, UL LAFAYETTE FOUNDATION FINANCIAL

  4. Division of the Vice-President Finance and Administration January 2014 _ Finance and Administration

    E-Print Network [OSTI]

    -Curtis University Information Technology Chief Information Officer Bob Gagne Campus Services & Business Operations Energy Management Director Brad Cochrane Facilities Development Director Custodial, Grounds & Glendon-President Senior Executive Officer Rob Castle Internal Audit Acting Director Ran Lewin Faculty Relations Executive

  5. Division of the Vice-President Finance and Administration November 2013 _ Finance and Administration

    E-Print Network [OSTI]

    -Curtis University Information Technology Chief Information Officer Bob Gagne Campus Services & Business Operations Energy Management Director Brad Cochrane Facilities Development Director Custodial, Grounds & Glendon Project Office of the Vice-President Senior Executive Officer Rob Castle Internal Audit Acting Director

  6. Division of the Vice-President Finance and Administration September 2014 _ Finance and Administration

    E-Print Network [OSTI]

    -Curtis University Information Technology Chief Information Officer Bob Gagne Campus Services & Business Operations Services Acting Director Aldo Altomare Energy Management Director Brad Cochrane Custodial, Grounds-President Senior Executive Officer Rob Castle Internal Audit Director Ran Lewin Faculty Relations Executive

  7. In Texas, Energy Sec. Moniz to Echo President's State of the...

    Energy Savers [EERE]

    to foster innovation and advanced manufacturing as key elements of the all-of-the-above energy strategy. As the President pointed out last week, the United States is rapidly...

  8. President Obama Announces Commitments and Executive Actions to Advance Solar Deployment and Energy Efficiency

    Broader source: Energy.gov [DOE]

    On May 9, 2014, President Obama announced more than 300 private and public sector commitments to create jobs and cut carbon pollution by advancing solar deployment and energy efficiency.

  9. BOARD OF ADVISORS TO THE PRESIDENTS OF THE NAVAL POSTGRADUATE SCHOOL & NAVAL WAR COLLEGE

    E-Print Network [OSTI]

    BOARD OF ADVISORS TO THE PRESIDENTS OF THE NAVAL POSTGRADUATE SCHOOL & NAVAL WAR COLLEGE October 17 attendance (choose all that apply): Naval Postgraduate School Subcommittee, 17 October 2012 Naval War College

  10. William F. Merck II Vice President for Administration and Finance and Chief Financial Officer

    E-Print Network [OSTI]

    Wu, Shin-Tson

    William F. Merck II Vice President for Administration and Finance and Chief Financial Officer Sheree Morgan Senior Administrative Assistant The Division of Administration and Finance provides high for Facilities Duane Siemen Director Facilities Operations TBD Director Sustainability and Energy Management

  11. Todd A. Diacon Senior Vice President for Academic Affairs and Provost

    E-Print Network [OSTI]

    Khan, Javed I.

    , Operations and Administration Lester A. Lefton President Mary Ann Stephens Dean, Graduate Studies Mary Anne Director Robert Walker Director School of Digital Sciences John West Research Trustees Professor Tom

  12. CIRCUMSTELLAR SHELL FORMATION IN SYMBIOTIC RECURRENT NOVAE

    SciTech Connect (OSTI)

    Moore, Kevin; Bildsten, Lars [Department of Physics, Broida Hall, University of California, Santa Barbara, CA 93106 (United States)

    2012-12-20T23:59:59.000Z

    We present models of spherically symmetric recurrent nova shells interacting with circumstellar material (CSM) in a symbiotic system composed of a red giant (RG) expelling a wind and a white dwarf accreting from this material. Recurrent nova eruptions periodically eject material at high velocities ({approx}> 10{sup 3} km s{sup -1}) into the RG wind profile, creating a decelerating shock wave as CSM is swept up. High CSM densities cause the shocked wind and ejecta to have very short cooling times of days to weeks. Thus, the late-time evolution of the shell is determined by momentum conservation instead of energy conservation. We compute and show evolutionary tracks of shell deceleration, as well as post-shock structure. After sweeping up all the RG wind, the shell coasts at a velocity {approx}100 km s{sup -1}, depending on system parameters. These velocities are similar to those measured in blueshifted CSM from the symbiotic nova RS Oph, as well as a few Type Ia supernovae that show evidence of CSM, such as 2006X, 2007le, and PTF 11kx. Supernovae occurring in such systems may not show CSM interaction until the inner nova shell gets hit by the supernova ejecta, days to months after the explosion.

  13. Physics 101: What Our Next President Needs to Know (LBNL Science at the Theater)

    ScienceCinema (OSTI)

    Muller, Rich

    2011-04-28T23:59:59.000Z

    Rich Muller, author of Physics for Future Presidents, argues that the next president can't afford to be ignorant about the science behind terrorism, nuclear dangers, energy, space, and global warming. Muller, a MacArthur Fellow, Berkeley Lab physicist, and one of the most popular lecturers at UC Berkeley, discusses what it takes to survive in today's increasingly dangerous world -- information essential to the next commander-in-chief. He presented his talk Oct. 13, 2008.

  14. A systematic study of the president's effect on public opinion: the Bush administration

    E-Print Network [OSTI]

    Hartline, Kelly

    2013-02-22T23:59:59.000Z

    going public possible Also, Bush served as Vice President under Ronald Reagan, who was often heralded as the "Great Communicator. " In this position, he would have experienced and learned from Reagan's successful and unsuccessful attempts at going..., however, that even though the president can set the public's agenda, it will not stay that way for long if he does not repeatedly rally the public and institutionalize the mobilization process (102). This temporary success in setting the public's agenda...

  15. Shell-Based Support Structures for Nb3Sn Accelerator Quadrupole Magnets

    E-Print Network [OSTI]

    Ferracin, Paolo

    2010-01-01T23:59:59.000Z

    similarly to the outer shell, they significantly increasedof Technology Quadrupole Shell (TQS) Magnet Models forSHELL-BASED SUPPORT STRUCTURES FOR NB 3 SN ACCELERATOR

  16. Core/Shell heterojunction nanowire solar cell fabricated by lithographically patterned nanowire electrodeposition method

    E-Print Network [OSTI]

    Ghosh, Somnath

    2012-01-01T23:59:59.000Z

    Menke. Gold CoreĖSemiconductor Shell Nanowires Prepared bycarrier concentration in CIS shell at different depositionMerced Dissertation: Core/Shell Heterojunction Nanowires

  17. Surface free energies for nematic shells

    E-Print Network [OSTI]

    Gaetano Napoli; Luigi Vergori

    2011-12-03T23:59:59.000Z

    We propose a continuum model to describe the molecular alignment in thin nematic shells. By contrast with previous accounts, the two-dimensional free energy, aimed at describing the physics of thin films of nematics deposited on curved substrates, is not postulated but it is deduced from the conventional three-dimensional theories of nematic liquid crystals. Both the director and the order-tensor theories are taken into account. The so-obtained surface energies exhibit extra terms compared to earlier models. These terms reflect the coupling of the geometry of the shell with the nematic order parameters. As expected, the shape of the shell plays a key role in the equilibrium configurations of nematics coating it.

  18. Shell model description of Ge isotopes

    E-Print Network [OSTI]

    J. G. Hirsch; P. C. Srivastava

    2012-04-12T23:59:59.000Z

    A shell model study of the low energy region of the spectra in Ge isotopes for $38\\leq N\\leq 50$ is presented, analyzing the excitation energies, quadrupole moments, $B(E2)$ values and occupation numbers. The theoretical results have been compared with the available experimental data. The shell model calculations have been performed employing three different effective interactions and valence spaces.We have used two effective shell model interactions, JUN45 and jj44b, for the valence space $f_{5/2} \\, p \\,g_{9/2}$ without truncation. To include the proton subshell $f_{7/2}$ in valence space we have employed the $fpg$ effective interaction due to Sorlin {\\it et al.}, with $^{48}$Ca as a core and a truncation in the number of excited particles.

  19. Filter diagonalization of shell-model calculations

    SciTech Connect (OSTI)

    Mizusaki, Takahiro [Institute of Natural Sciences, Senshu University, Tokyo 101-8425 (Japan); Kaneko, Kazunari [Department of Physics, Kyushu Sangyo University, Fukuoka 813-8503 (Japan); Honma, Michio [Center for Mathematical Sciences, University of Aizu, Aizu-Wakamatsu, 965-8580 (Japan); Sakurai, Tetsuya [Department of Computer Science, University of Tsukuba, Tsukuba, 305-8573 (Japan)

    2010-08-15T23:59:59.000Z

    We present a method of filter diagonalization for shell-model calculations. This method is based on the Sakurai and Sugiura (SS) method, but extended with the help of the shifted complex orthogonal conjugate gradient (COCG) method. A salient feature of this method is that it can calculate eigenvalues and eigenstates in a given energy interval. We show that this method can be an alternative to the Lanczos method for calculating ground and excited states, as well as spectral strength functions. With an application to the M-scheme shell-model calculations we demonstrate that several inherent problems in the widely used Lanczos method can be removed or reduced.

  20. accumbens shell enhances: Topics by E-print Network

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

    A0o and B0o of the off-shell tachyons. Yi-Lei Tang 2015-01-30 72 NANO EXPRESS Open Access AuPd core-shell nanoparticles with varied hollow Energy Storage,...

  1. Au34-: A Fluxional Core-Shell Cluster. | EMSL

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

    Au34-: A Fluxional Core-Shell Cluster. Au34-: A Fluxional Core-Shell Cluster. Abstract: Among the large Aun Ė clusters for n > 20, the photoelectron spectra of Au34...

  2. Incorporation of silica into baroplastic core-shell nanoparticles

    E-Print Network [OSTI]

    Hewlett, Sheldon A

    2006-01-01T23:59:59.000Z

    Core-shell baroplastics are nanophase materials that exhibit pressure-induced flow at low temperatures and high pressures. Core-shell baroplastics used in this work are comprised of a low Tg poly(butyl acrylate) (PBA) core ...

  3. Shell Model for Atomistic Simulation of Lithium Diffusion in...

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

    Shell Model for Atomistic Simulation of Lithium Diffusion in Mixed MnTi Oxides. Shell Model for Atomistic Simulation of Lithium Diffusion in Mixed MnTi Oxides. Abstract: Mixed...

  4. accumbens shell mediates: Topics by E-print Network

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

    in type 0 theory. F. Cuomo; R. Marotta; F. Nicodemi; R. Pettorino; F. Pezzella; G. Sabella 2000-11-09 395 Department of Mechanical Engineering Spring 2011 Shell 2-Shell...

  5. Single shell tank waste characterization for Tank 241-BX-101

    SciTech Connect (OSTI)

    Kocher, K.L.

    1994-08-10T23:59:59.000Z

    This document provides the characterization information and interprets the data for Double-Shell Tank AP-102.

  6. Continuous representation for shell models of turbulence

    E-Print Network [OSTI]

    Alexei A. Mailybaev

    2014-09-16T23:59:59.000Z

    In this work we construct and analyze continuous hydrodynamic models in one space dimension, which are induced by shell models of turbulence. After Fourier transformation, such continuous models split into an infinite number of uncoupled subsystems, which are all identical to the same shell model. The two shell models, which allow such a construction, are considered: the dyadic (Desnyansky--Novikov) model with the intershell ratio $\\lambda = 2^{3/2}$ and the Sabra model of turbulence with $\\lambda = \\sqrt{2+\\sqrt{5}} \\approx 2.058$. The continuous models allow understanding various properties of shell model solutions and provide their interpretation in physical space. We show that the asymptotic solutions of the dyadic model with Kolmogorov scaling correspond to the shocks (discontinuities) for the induced continuous solutions in physical space, and the finite-time blowup together with its viscous regularization follow the scenario similar to the Burgers equation. For the Sabra model, we provide the physical space representation for blowup solutions and intermittent turbulent dynamics.

  7. On-Shell Methods in Perturbative QCD

    E-Print Network [OSTI]

    Zvi Bern; Lance J. Dixon; David A. Kosower

    2007-05-30T23:59:59.000Z

    We review on-shell methods for computing multi-parton scattering amplitudes in perturbative QCD, utilizing their unitarity and factorization properties. We focus on aspects which are useful for the construction of one-loop amplitudes needed for phenomenological studies at the Large Hadron Collider.

  8. Non-Planar On-Shell Diagrams

    E-Print Network [OSTI]

    Franco, Sebastian; Penante, Brenda; Wen, Congkao

    2015-01-01T23:59:59.000Z

    We initiate a systematic study of non-planar on-shell diagrams in N=4 SYM and develop powerful technology for doing so. We introduce canonical variables generalizing face variables, which make the dlog form of the on-shell form explicit. We present a general classification of arbitrary on-shell diagrams in terms of two classes of combinatorial objects: generalized matching and matroid polytopes. We propose a boundary measurement that connects general on-shell diagrams to the Grassmannian. Our proposal exhibits two important and non-trivial properties: positivity in the planar case and its generalization for non-planar diagrams, and it matches the combinatorial description of the diagrams in terms of matroid polytopes. We present a comprehensive discussion of equivalence and reductions for non-planar diagrams and explain how they are captured by the generalized matching and matroid polytopes. Interestingly, non-planar diagrams exhibit novel phenomena, such as the emergence of constraints on Pl\\"ucker coordinat...

  9. Vicinage effect in inner-shell ionization

    SciTech Connect (OSTI)

    Ugalde, J.M.; Sarasola, C.; Echenique, P.M.; Ritchie, R.H.

    1988-07-01T23:59:59.000Z

    The vicinage effect in the double ionization of inner-shell electrons has been calculated using first-order perturbation theory. Calculations demonstrate that significant differences arise when the orthogonalized hole in the electron gas is properly taken into account. Comparison with previous calculations by Basbas and Ritchie (Phys. Rev. A 25, 1943 (1982)) and experimental data is made.

  10. Counter-rotating Kerr manifolds separated by a fluid shell

    E-Print Network [OSTI]

    J. P. Krisch; E. N. Glass

    2009-08-13T23:59:59.000Z

    We describe a spheroidal fluid shell between two Kerr vacuum regions which have opposite rotation parameters. The shell has a stiff equation of state and a heat flow vector related to the rotational Killing current. The shell description is useful in exploring the significance of counter-rotation in Kerr metric matches.

  11. On-Shell Unitarity Bootstrap for QCD Amplitudes

    E-Print Network [OSTI]

    Carola F. Berger; Zvi Bern; Lance J. Dixon; Darren Forde; David A. Kosower

    2006-10-16T23:59:59.000Z

    We describe the recently developed on-shell bootstrap for computing one-loop amplitudes in non-supersymmetric theories such as QCD. The method combines the unitarity method with loop-level on-shell recursion. The unitarity method is used to compute cut-containing parts of amplitudes, and on-shell recursion is used for the remaining rational terms.

  12. On the intersection of the shell, collective and cluster models of atomic nuclei I: Multi-shell excitations

    E-Print Network [OSTI]

    J. Cseh

    2014-04-14T23:59:59.000Z

    The relation of the shell, collective and cluster models of the atomic nuclei is discussed from the viewpoint of symmetries. In the fifties the U(3) symmetry was found as their common part for a single shell problem. For multi major-shell excitations, considered here, the U(3)$\\otimes$U(3) dynamical symmetry turns out to be their intersection.

  13. Method of fabricating nested shells and resulting product

    DOE Patents [OSTI]

    Henderson, Timothy M. (Ann Arbor, MI); Kool, Lawrence B. (Ann Arbor, MI)

    1982-01-01T23:59:59.000Z

    A multiple shell structure and a method of manufacturing such structure wherein a hollow glass microsphere is surface treated in an organosilane solution so as to render the shell outer surface hydrophobic. The surface treated glass shell is then suspended in the oil phase of an oil-aqueous phase dispersion. The oil phase includes an organic film-forming monomer, a polymerization initiator and a blowing agent. A polymeric film forms at each phase boundary of the dispersion and is then expanded in a blowing operation so as to form an outer homogeneously integral monocellular substantially spherical thermoplastic shell encapsulating an inner glass shell of lesser diameter.

  14. Preheat of radiative shock in double-shell ignition targets

    SciTech Connect (OSTI)

    Li, J. W.; He, X. T. [Key Lab of High Energy Density Physics Simulation, Center for Applied Physics and Technology, Peking University, Beijing 100871 (China) [Key Lab of High Energy Density Physics Simulation, Center for Applied Physics and Technology, Peking University, Beijing 100871 (China); Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100094 (China); Pei, W. B.; Li, J. H.; Zheng, W. D.; Zhu, S. P. [Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100094 (China)] [Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100094 (China); Kang, W. [Key Lab of High Energy Density Physics Simulation, Center for Applied Physics and Technology, Peking University, Beijing 100871 (China)] [Key Lab of High Energy Density Physics Simulation, Center for Applied Physics and Technology, Peking University, Beijing 100871 (China)

    2013-08-15T23:59:59.000Z

    For the double-shell ignition target, the nonuniform preheat of the inner shell by high-energy x rays, especially the M-band line radiation and L-shell radiation from the Au hohlraum, aggravates the hydrodynamic instability that causes shell disruption. In this paper, for the first time, we propose another preheating mechanism due to the radiative shock formed in the CH foam, and also confirm and validate such preheat of radiative shock by numerical results. We also give an estimate of the improved double-shell in which the CH foam is replaced by the metallic foam to mitigate the hydrodynamic instabilities, and find that the radiative shock formed in the metallic foam produces a much stronger radiation field to preheat the inner shell, which plays a role in better controlling the instabilities. In double-shells, the preheat of radiative shock, as a potential effect on the instabilities, should be seriously realized and underlined.

  15. The robust assembly of small symmetric nano-shells

    E-Print Network [OSTI]

    Jef Wagner; Roya Zandi

    2014-10-03T23:59:59.000Z

    Highly symmetric nano-shells are found in many biological systems, such as clathrin cages and viral shells. Several studies have shown that symmetric shells appear in nature as a result of the free energy minimization of a generic interaction between their constituent subunits. We examine the physical basis for the formation of symmetric shells, and using a minimal model we demonstrate that these structures can readily grow from identical subunits under non equilibrium conditions. Our model of nano-shell assembly shows that the spontaneous curvature regulates the size of the shell while the mechanical properties of the subunit determines the symmetry of the assembled structure. Understanding the minimum requirements for the formation of closed nano-shells is a necessary step towards engineering of nano-containers, which will have far reaching impact in both material science and medicine.

  16. Interstellar HI Shells Identified in the SETHI Survey

    E-Print Network [OSTI]

    Sallmen, Shauna M; Bellehumeur, Brooke; Tennyson, Elizabeth M; Grunwald, Kurt; Lo, Cheuk Man

    2015-01-01T23:59:59.000Z

    Galactic HI (neutral hydrogen) shells are central to our understanding of the interstellar medium (ISM), which plays a key role in the development and evolution of galaxies, including our own. Several models involving supernovae and stellar winds have contributed to our broad understanding, but a complete, detailed picture remains elusive. To extend existing Galactic shell catalogs, we visually examined the SETHI (Search for Extraterrestrial HI) database to identify shell-like structures. This high-sensitivity 21-cm radio survey covering the Arecibo sky uniquely provides high-resolution data on shells at a wide range of Galactic latitudes. We present basic information (location, radial velocity, angular size, shape) for 74 previously unidentified HI shells. Due to limitations of coverage and data quality, and the biases inherent in search techniques, our catalog is not a complete sample of Galactic shells. We discuss the catalog completeness, and comment on the new shells' relationship with known interstellar...

  17. Production technology experience in Shell's Michigan waterfloods

    SciTech Connect (OSTI)

    Barnes, P.F.; Tinker, G.E.

    1983-11-01T23:59:59.000Z

    Waterflooding started in the Niagaran carbonate reef oil reservoirs in Northern Michigan in 1978 with Shell's Chester 18 waterflood. Ten waterflood projects had been installed by the spring of 1983. As a result of this experience, significant production technology practices have become established. The majority of the waterflood experience has been in Shell's Gaylord Production Unit located primarily in Otsego and Crawford counties. Specifically, the projects discussed are the Chester 18, Chester 21, Frederic 10, Hayes 15, Hayes 21A, and Mid-Charlton 10 waterfloods. In general, the waterflood program can be characterized by: 1. Very favorable oil production response. 2. Timely and definitive surveillance techniques. 3. Systematic and timely well work on injectors and producers to maintain optimum reservoir withdrawal behavior. 4. Innovative application of artificial lift technology. 5. Aggressive future planning to maintain and improve oil production response.

  18. Production technology experience in Shell's Michigan waterfloods

    SciTech Connect (OSTI)

    Barnes, P.F.; Tinker, G.E.

    1983-01-01T23:59:59.000Z

    Waterflooding started in the Niagaran carbonate reef oil reservoirs in N. Michigan in 1978 with Shell's Chester 18 Waterflood. Ten waterflood projects had been installed by the spring of 1983. As a result of this experience, significant production technology practices have become established. The majority of the waterflood experience has been in Shell's Gaylord Production Unit located primarily in Otsego and Crawford counties. Specifically, the projects discussed are the Chester 18, Chester 21, Frederic 10, Hayes 15, Hayes 21A, and Mid-Charlton 10 waterfloods. In general, the waterflood program can be characterized by (1) a favorable oil production response, (2) timely and definitive surveillance techniques, (3) systematic and timely well work on injectors and producers to maintain optimum reservoir withdrawal behavior, (4) innovative application of artificial lift technology; and (5) aggressive future planning to maintain and improve oil production response.

  19. On-shell extension of distributions

    E-Print Network [OSTI]

    Dorothea Bahns; Micha? Wrochna

    2014-05-05T23:59:59.000Z

    We consider distributions on $\\R^n\\setminus{0}$ which satisfy a given set of partial differential equations and provide criteria for the existence of extensions to $\\R^n$ that satisfy the same set of equations on $\\R^n$. We use the results to construct distributions satisfying specific renormalisation conditions in the Epstein and Glaser approach to perturbative quantum field theory. Contrary to other approaches, we provide a unified apporach to treat Lorentz covariance, invariance under global gauge group and almost homogeneity, as well as discrete symmetries. We show that all such symmetries can be recovered by applying a linear map defined for all degrees of divergence. Using similar techniques, we find a relation between on-shell and off-shell time-ordered products involving higher derivatives of the fields.

  20. Understanding nuclei in the upper sd - shell

    SciTech Connect (OSTI)

    Sarkar, M. Saha; Bisoi, Abhijit; Ray, Sudatta [Nuclear Physics Division, Saha Institute of Nuclear Physics, Kolkata 700064 (India); Kshetri, Ritesh [Nuclear Physics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India and Sidho-Kanho-Birsha University, Purulia - 723101 (India); Sarkar, S. [Indian Institute of Engineering Science and Technology, Shibpur, Howrah - 711103 (India)

    2014-08-14T23:59:59.000Z

    Nuclei in the upper-sd shell usually exhibit characteristics of spherical single particle excitations. In the recent years, employment of sophisticated techniques of gamma spectroscopy has led to observation of high spin states of several nuclei near A ? 40. In a few of them multiparticle, multihole rotational states coexist with states of single particle nature. We have studied a few nuclei in this mass region experimentally, using various campaigns of the Indian National Gamma Array setup. We have compared and combined our empirical observations with the large-scale shell model results to interpret the structure of these nuclei. Indication of population of states of large deformation has been found in our data. This gives us an opportunity to investigate the interplay of single particle and collective degrees of freedom in this mass region.

  1. Relativistic R matrix and continuum shell model

    E-Print Network [OSTI]

    J. Grineviciute; Dean Halderson

    2014-04-16T23:59:59.000Z

    Background: The $R$ matrix formalism of Lane and Thomas has proven to be a convenient reaction theory for solving many-coupled channel systems. The theory provides solutions to bound states, scattering states, and resonances for microscopic models in one formalism. Purpose: The first purpose is to extend this formalism to the relativistic case so that the many-coupled channels problem may be solved for systems in which binary breakup channels satisfy a relative Dirac equation. The second purpose is to employ this formalism in a relativistic continuum shell model. Methods: Expressions for the collision matrix and the scattering amplitude, from which observables may be calculated, are derived. The formalism is applied to the 1p-1h relativistic continuum shell model with an interaction extracted from relativistic mean-field theory. Results: The simplest of the $\\sigma +\\omega +\\rho$ exchange interactions produces a good description of the single-particle energies in $^{16}$O and $^{90}$Zr and a reasonable description of proton scattering from $^{15}$N. Conclusions: The development of a calculable, relativistic $R$ matrix and its implementation in a $1p-1h$ relativistic continuum shell model provide a simple relatively self-consist, physically justifiable model for use in knockout reactions.

  2. FABI Director elected as next IUFRO president Prof. Mike Wingfield, the director of the Forestry and Agricultural

    E-Print Network [OSTI]

    FABI Director elected as next IUFRO president Prof. Mike Wingfield, the director of the Forestry as the next president of the International Union of Forestry Research Organizations (IUFRO). Mike is the first October 2014 to 2019. IUFRO is "the global network for forestry research" and one of the most influential

  3. Oxide shell reduction and magnetic property changes in core-shell Fe nanoclusters under ion irradiation

    SciTech Connect (OSTI)

    Sundararajan, Jennifer A.; Kaur, Maninder; Qiang, You, E-mail: youqiang@uidaho.edu [Department of Physics, University of Idaho, Moscow, Idaho 83844 (United States); Jiang, Weilin [Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352 (United States); McCloy, John S. [School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164 (United States)

    2014-05-07T23:59:59.000Z

    Ion irradiation effects are studied on the Fe-based core-shell nanocluster (NC) films with core as Fe and shell as Fe{sub 3}O{sub 4}/Fe{sub 3}N. These NC films were deposited on Si substrates to thickness of ?0.5 ?m using a NC deposition system. The films were irradiated at room temperature with 5.5?MeV Si{sup 2+} ions to ion fluences of 10{sup 15} and 10{sup 16} ions/cm{sup 2}. It is found that the irradiation induces grain growth, Fe valence reduction in the shell, and crystallization or growth of Fe{sub 3}N. The film retained its Fe-core and its ferromagnetic properties after irradiation. The nature and mechanism of oxide shell reduction and composition dependence after irradiation were studied by synthesizing additional NC films of Fe{sub 3}O{sub 4} and FeO?+?Fe{sub 3}N and irradiating them under the same conditions. The presence of nanocrystalline Fe is found to be a major factor for the oxide shell reduction. The surface morphologies of these films show dramatic changes in the microstructures due to cluster growth and agglomeration as a result of ion irradiation.

  4. Policy Name: Indirect Costs of Research Originating/Responsible Department: Vice-President (Research and International)

    E-Print Network [OSTI]

    Dawson, Jeff W.

    Policy Name: Indirect Costs of Research Originating/Responsible Department: Vice: Associate Vice-President (Research Planning and Operations Policy: Indirect costs of research are real costs that benefit and support research. These costs must be included in budget requests to external sponsors

  5. Finance President's Council Section Page 21 Motion: 199510.11 & 199703.25

    E-Print Network [OSTI]

    Bolch, Tobias

    Finance President's Council Section Page 21 Motion: 199510.11 & 199703.25 UNIVERSITY OF NORTHERN by the Finance Department, not to exceed a maximum of $500. 1.2 A requisition for establishment of a petty cash fund and the reason(s) for requiring a petty cash fund is forwarded to the Finance Department

  6. Office of the Vice President for Research UGA IACUC Food or Fluid Regulation Policy

    E-Print Network [OSTI]

    Arnold, Jonathan

    Office of the Vice President for Research UGA IACUC Food or Fluid Regulation Policy Approved by UGA preferred food or fluid as positive reinforcement, instead of regulation, is recommended. This policy does with the animals that documents: Food and fluid consumption #12;Food or Fluid Regulation Policy Revised: 8

  7. Office of the Vice President for Research UGA IACUC Physical Restraint Policy

    E-Print Network [OSTI]

    Arnold, Jonathan

    Office of the Vice President for Research UGA IACUC Physical Restraint Policy Approved by UGA IACUC. Policy · Restraint devices are not to be considered normal methods of housing, or be used simply use protocol. #12;Physical Restraint Policy Revised: 8/21/14 Page 2 of 2 · Frequent, documented

  8. Human Resources President's Council Section Page 13 Motion: 199606.12

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Human Resources President's Council Section Page 13 Motion: 199606.12 UNIVERSITY OF NORTHERN notify the Human Resources Department and their immediate Supervisor in writing a minimum of (2) two Resources Department. 2) Before his/her last day of employment, the employee must ensure that the Exiting

  9. The University Presidents' Council of British Columbia (TUPC) has brokered a groundbreaking

    E-Print Network [OSTI]

    Ollivier-Gooch, Carl

    The University Presidents' Council of British Columbia (TUPC) has brokered a groundbreaking agreement between the Province and the public universities of British Columbia, the results of which Ministries engage in research projects with universities in British Columbia that encourage innovation, add

  10. Valerie Corbin Ketchen A&S '81 Pitt Alumni Association Vice President 2014-2016

    E-Print Network [OSTI]

    Sibille, Etienne

    of the YWCA of Greater Harrisburg, where she is immediate past president, and Drug Free Pennsylvania, where and the Pennsylvania Economy League's Harrisburg Area Committee. Valerie is a member of the Rose of Sharon Baptist Church and resides in suburban Harrisburg. #12;

  11. Boston University Office of the Executive Vice President Human Resources Organizational Readiness Project

    E-Print Network [OSTI]

    Finzi, Adrien

    in a coordinated format required by the SAP enterprise resource planning (ERP) system. The collection of this data Project represents an important first step in the successful launch of SAP and modernizing our human Project To: Vice Presidents, Deans, Directors and Department Heads From: Joseph P. Mercurio, Executive

  12. Statement of Dr. John H. Marburger, III President's Science Adviser and

    E-Print Network [OSTI]

    Knowles, David William

    of the Committee, I am pleased to appear before you once again to discuss the President's research and development on winning the war against terrorism, while moderating the growth in overall spending, and this focus exploration. Furthermore, while overall "non-security" discretionary spending is reduced by one percent, "non

  13. TIMOTHY J. HADDON Mr. Haddon is currently President and Chief Executive Officer of International Natural Resource

    E-Print Network [OSTI]

    has been Chairman of Audit, Compensation and Corporate Governance committees and sat on Health, Safety, and President and Chief Executive Officer of Archangel Diamond Corporation from 1997 through 2002. Mr. Haddon. In 1993 Mr. Haddon was asked, as part of the Clinton Administration's "Reinventing Government Initiative

  14. UNIVERSITY OF MARYLAND: THE LEADERSHIP OF PRESIDENT C. D. MOTE, JR.

    E-Print Network [OSTI]

    Milchberg, Howard

    in higher education, including university funding models, the value of international students, export1 UNIVERSITY OF MARYLAND: THE LEADERSHIP OF PRESIDENT C. D. MOTE, JR. LEADERSHIP · Led efforts to establish an "expectation of greatness" at the University of Maryland that has positioned the campus as one

  15. 2013AnnuAl RepoRt Office of the Vice President for Research

    E-Print Network [OSTI]

    Rock, Chris

    Vice President for Research 3 Introduction 4 Statistics 5 Economic Impact 7 Annual Institutional Annual Research Award and Expenditures by Sponsor Type 12 Institutional Federal R&D Funding Activity 13 for number of awards received. · We now have four National Academy members who are all focused on energy

  16. Office of the Vice President for Research UGA IACUC Policy on Rodent Euthanasia using Carbon Dioxide

    E-Print Network [OSTI]

    Arnold, Jonathan

    Office of the Vice President for Research UGA IACUC Policy on Rodent Euthanasia using Carbon with this guidance and to ensure effective euthanasia of rodents used in research. Rodents must be euthanized source of carbon dioxide for euthanasia. The use of compressed gas and handling gas cylinders can

  17. OFFICE OF THE VICE-PRESIDENT, LEGAL AFFAIRS Archives and Records Management Department

    E-Print Network [OSTI]

    OFFICE OF THE VICE-PRESIDENT, LEGAL AFFAIRS Archives and Records Management Department Administrative Record A document that has been preserved because it facilitates the operations and management 1 Glossary of Archival Terms Access The use of records, papers and collections

  18. University of Michigan Office of the Vice President and Secretary of the University

    E-Print Network [OSTI]

    Shyy, Wei

    University of Michigan Office of the Vice President and Secretary of the University USE OF UNIVERSITY OF MICHIGAN NAME, MARKS, SEAL, AND IMAGES IN POLITICAL CAMPAIGNS OR BY POLITICAL ORGANIZATIONS, but not limited to, the Internal Revenue Code and the Michigan Campaign Finance Law. 1. The trademarks and service

  19. Policy V. 3.2.4 Responsible Official: Vice President for

    E-Print Network [OSTI]

    Hayden, Nancy J.

    that an administrative or academic unit may, through appropriate officials and channels, promulgate. Rather, the CodePolicy V. 3.2.4 Responsible Official: Vice President for Executive Operations Effective Date: October 30, 2010 Code of Business Conduct Policy Statement This Code of Business Conduct requires all

  20. OFFICE OF THE VICE PRESIDENT FOR STUDENT AFFAIRS STUDENT CONDUCT CODE

    E-Print Network [OSTI]

    Hemmers, Oliver

    of the campus community is strongly encouraged to notify appropriate officials of any violation of the CodeOFFICE OF THE VICE PRESIDENT FOR STUDENT AFFAIRS STUDENT CONDUCT CODE SECTION 1: GENERAL PROVISIONS" or "UNLV") community are necessary for the fulfillment of such goals. The UNLV Student Conduct Code ("Code

  1. The President's 2011 Budget provides $28.4 billion for the Department of Energy (DOE) to

    E-Print Network [OSTI]

    system. The end result will promote energy- and cost-saving choices for consumers, reduce emissions, and foster the growth of renew- able energy sources like wind and solar. In addi- tion, the Budget supports69 The President's 2011 Budget provides $28.4 billion for the Department of Energy (DOE) to support

  2. August 18, 2009 MEMO TO: Vice Presidents, Deans, Directors, Chairs and Administrative Heads

    E-Print Network [OSTI]

    Su, Xiao

    Heads FROM: Jon Whitmore President SUBJECT: Presidential Directive 2009-04 Executive Order No. 1043 Student Conduct Procedures Supersedes: Presidential Directive 2007-01 In accordance with California State or some proceedings. San Josť State University does not permit attorneys to be present in any proceeding

  3. Policy Name: Gambling on Campus Policy Originating/Responsible Department: Associate Vice-President (Students & Enrolment)

    E-Print Network [OSTI]

    Dawson, Jeff W.

    Policy Name: Gambling on Campus Policy Originating/Responsible Department: Associate Vice-President (Students & Enrolment) Approval Authority: Senior Management Committee Date of Original Policy: March 2008 & Enrolment) Policy: Carleton University is a public institution, and as such, the Criminal Code of Canada

  4. Effects of scars on crystalline shell stability under external pressure

    E-Print Network [OSTI]

    Duanduan Wan; Mark J. Bowick; Rastko Sknepnek

    2014-10-23T23:59:59.000Z

    We study how the stability of spherical crystalline shells under external pressure is influenced by the defect structure. In particular, we compare stability for shells with a minimal set of topologically-required defects to shells with extended defect arrays (grain boundary "scars" with non-vanishing net disclination charge). We perform Monte Carlo simulations to compare how shells with and without scars deform quasi-statically under external hydrostatic pressure. We find that the critical pressure at which shells collapse is lowered for scarred configurations that break icosahedral symmetry and raised for scars that preserve icosahedral symmetry. The particular shapes which arise from breaking of an initial icosahedrally-symmetric shell depend on the F\\"oppl-von K\\'arm\\'an number.

  5. On the stability of thermonuclear shell sources in stars

    E-Print Network [OSTI]

    S. -C. Yoon; N. Langer; M. van der Sluys

    2004-06-07T23:59:59.000Z

    We present a quantitative criterion for the thermal stability of thermonuclear shell sources. We find the thermal stability of shell sources to depend on exactly three factors: they are more stable when they are geometrically thicker, less degenerate and hotter. This confirms and unifies previously obtained results in terms of the geometry, temperature and density of the shell source, by a simplified but quantitative approach to the physics of shell nuclear burning. We present instability diagrams in the temperature-density plane for hydrogen and helium shell burning, which allow a simple evaluation of the stability conditions of such shell sources in stellar models. The performance of our stability criterion is demonstrated in various numerical models: in a 3 Msun AGB star, in helium accreting CO white dwarfs, in a helium white dwarf which is covered by a thin hydrogen envelope, and in a 1.0 Msun giant.

  6. Proton-neutron pairing correlations in the nuclear shell model

    E-Print Network [OSTI]

    Lei Yang; S. Pittel; B. Thakur; N. Sandulescu; A. Poves; Yu-Min Zhao

    2010-06-16T23:59:59.000Z

    A shell-model study of proton-neutron pairing in f - p shell nuclei using a parametrized hamiltonian that includes deformation and spin-orbit effects as well as isoscalar and isovector pairing is reported. By working in a shell-model framework we are able to assess the role of the various modes of proton-neutron pairing in the presence of nuclear deformation without violating symmetries. Results are presented for $^{44}$Ti, $^{46}$Ti and $^{48}$Cr.

  7. Conical thin shell wormhole from global monopole: A theoretical construction

    E-Print Network [OSTI]

    F. Rahaman; M. Kalam; K. A. Rahman

    2008-11-10T23:59:59.000Z

    By applying 'Darmois-Israel formalism', we establish a new class of thin shell wormhole in the context of global monopole resulting from the breaking of a global O(3) symmetry. Since global monopole is asymptotically conical (no longer asymptotically flat), we call it as conical thin shell wormhole. Different characteristics of this conical thin shell wormhole, namely, time evolution of the throat, stability, total amount of exotic matter have been discussed.

  8. On the stability of thin-shell wormholes

    E-Print Network [OSTI]

    Peter K. F. Kuhfittig

    2014-12-18T23:59:59.000Z

    A thin-shell wormhole is theoretically constructible by surgically grafting together two Schwarzschild spacetimes using the so-called cut-and-paste technique. By describing such a wormhole as a limiting case of a constant-density spherical shell, it is shown that the structure must be unstable to linearized radial perturbations. Some earlier studies by the author et al. have shown, however, that under certain conditions, thin-shell wormholes can be stable.

  9. Ground state energy fluctuations in the Nuclear Shell Model

    E-Print Network [OSTI]

    Victor Velazquez; Jorge G. Hirsch; Alejandro Frank; Jose Barea; Andres P. Zuker

    2005-03-29T23:59:59.000Z

    Statistical fluctuations of the nuclear ground state energies are estimated using shell model calculations in which particles in the valence shells interact through well defined forces, and are coupled to an upper shell governed by random 2-body interactions. Induced ground-state energy fluctuations are found to be one order of magnitude smaller than those previously associated with chaotic components, in close agreement with independent perturbative estimates based on the spreading widths of excited states.

  10. Graded core/shell semiconductor nanorods and nanorod barcodes

    DOE Patents [OSTI]

    Alivisatos, A. Paul; Scher, Erik C.; Manna, Liberato

    2013-03-26T23:59:59.000Z

    Graded core/shell semiconductor nanorods and shapped nanorods are disclosed comprising Group II-VI, Group III-V and Group IV semiconductors and methods of making the same. Also disclosed are nanorod barcodes using core/shell nanorods where the core is a semiconductor or metal material, and with or without a shell. Methods of labeling analytes using the nanorod barcodes are also disclosed.

  11. Graded core/shell semiconductor nanorods and nanorod barcodes

    DOE Patents [OSTI]

    Alivisatos, A. Paul (Oakland, CA); Scher, Erik C. (San Francisco, CA); Manna, Liberato (Palo Del Collie, IT)

    2009-05-19T23:59:59.000Z

    Disclosed herein is a graded core/shell semiconductor nanorod having at least a first segment of a core of a Group II-VI, Group III-V or a Group IV semiconductor, a graded shell overlying the core, wherein the graded shell comprises at least two monolayers, wherein the at least two monolayers each independently comprise a Group II-VI, Group III-V or a Group IV semiconductor.

  12. Graded core/shell semiconductor nanorods and nanorod barcodes

    DOE Patents [OSTI]

    Alivisatos, A. Paul (Oakland, CA); Scher, Erik C. (San Francisco, CA); Manna, Liberato (Lecce, IT)

    2010-12-14T23:59:59.000Z

    Graded core/shell semiconductor nanorods and shaped nanorods are disclosed comprising Group II-VI, Group III-V and Group IV semiconductors and methods of making the same. Also disclosed are nanorod barcodes using core/shell nanorods where the core is a semiconductor or metal material, and with or without a shell. Methods of labeling analytes using the nanorod barcodes are also disclosed.

  13. Absence of Embedded Mass Shells: Cerenkov Radiation and Quantum Friction

    E-Print Network [OSTI]

    W. De Roeck; J. Froehlich; A. Pizzo

    2010-11-22T23:59:59.000Z

    We show that, in a model where a non-relativistic particle is coupled to a quantized relativistic scalar Bose field, the embedded mass shell of the particle dissolves in the continuum when the interaction is turned on, provided the coupling constant is sufficiently small. More precisely, under the assumption that the fiber eigenvectors corresponding to the putative mass shell are differentiable as functions of the total momentum of the system, we show that a mass shell could exist only at a strictly positive distance from the unperturbed embedded mass shell near the boundary of the energy-momentum spectrum.

  14. Global geometry of space-time with the charged shell

    E-Print Network [OSTI]

    V. A. Berezin; V. I. Dokuchaev

    2014-04-10T23:59:59.000Z

    It is elaborated the complete classification of the possible types of the spherically symmetric global geometries for two types of electrically charged shells: (1) The charged shell as a single source of the gravitational field, when internal space-time is flat, and external space-time is the Reissner--Nordstr\\"om metric; (2) The neutralizing shell with an electric charge opposite to the charge of the internal source with the Reissner--Nordstr\\"om metric and with the Schwarzschild metric outside the shell.

  15. Casimir energy for spherical shell in Schwarzchild black hole background

    E-Print Network [OSTI]

    M. R. Setare; M. B. Altaie

    2003-08-28T23:59:59.000Z

    In this paper, we consider the Casimir energy of massless scalar field which satisfy Dirichlet boundary condition on a spherical shell. Outside the shell, the spacetime is assumed to be described by the Schwarzschild metric, while inside the shell it is taken to be the flat Minkowski space. Using zeta function regularization and heat kernel coefficients we isolate the divergent contributions of the Casimir energy inside and outside the shell, then using the renormalization procedure of the bag model the divergent parts are cancelled, finally obtaining a renormalized expression for the total Casimir energy.

  16. Decoding Ancient Ocean Acidification Signals from Plankton Shells

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

    a type of zooplankton, do this by trapping trace chemical impurities in their calcium carbonate shells. Decoding these impurity records can reveal changes in global...

  17. Rigorous HDD Emissions Capabilities of Shell GTL Fuel

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

    3 Fuel Description - Reference Fuel Reference ULSD (S15) ex Shell Martinez CA Refinery, exhibits < 2 ppm sulfur 43 cetane number (contains no cetane improver) <10%m...

  18. Off-shell tachyon amplitudes analyticity and projective invariance

    E-Print Network [OSTI]

    Cuomo, F; Nicodemi, F; Pettorino, R; Pezzella, F; Sabella, G

    2001-01-01T23:59:59.000Z

    We compute off-shell three- and four-tachyon amplitudes at tree level by using a prescription based on the requirement of projective invariance. In particular we show that the off-shell four-tachyon amplitude can be put in the same form as the corresponding on-shell one, exhibiting therefore the same analyticity properties. This is shown both for the bosonic and the fermionic string. The result obtained in the latter case can be extended to the off-shell four-tachyon amplitude in type 0 theory.

  19. Off-shell tachyon amplitudes: analyticity and projective invariance

    E-Print Network [OSTI]

    F. Cuomo; R. Marotta; F. Nicodemi; R. Pettorino; F. Pezzella; G. Sabella

    2000-11-09T23:59:59.000Z

    We compute off-shell three- and four-tachyon amplitudes at tree level by using a prescription based on the requirement of projective invariance. In particular we show that the off-shell four-tachyon amplitude can be put in the same form as the corresponding on-shell one, exhibiting therefore the same analyticity properties. This is shown both for the bosonic and the fermionic string. The result obtained in the latter case can be extended to the off-shell four-tachyon amplitude in type 0 theory.

  20. Electron shell and the alpha-decay

    E-Print Network [OSTI]

    Sergey Yu. Igashov; Yury M. Tchuvil'sky

    2012-12-03T23:59:59.000Z

    The ratio of the alpha-decay widths of a bare nucleus and the related atom is calculated. Both the change of the form and thus the penetrability of the potential barrier and the effect of reflection in the classically-allowed region appearing due to the electron shell are taken into account in the calculations of this ratio. The contribution of each of these two effects is of one and the same order of magnitude. For long-lived radioactive samples the values of the total effect turn out to be somewhat below 1 percent.

  1. Casimir Energy of a Spherical Shell

    E-Print Network [OSTI]

    M. E. Bowers; C. R. Hagen

    1998-06-23T23:59:59.000Z

    The Casimir energy for a conducting spherical shell of radius $a$ is computed using a direct mode summation approach. An essential ingredient is the implementation of a recently proposed method based on Cauchy's theorem for an evaluation of the eigenfrequencies of the system. It is shown, however, that this earlier calculation uses an improper set of modes to describe the waves exterior to the sphere. Upon making the necessary corrections and taking care to ensure that no mathematically ill-defined expressions occur, the technique is shown to leave numerical results unaltered while avoiding a longstanding criticism raised against earlier calculations of the Casimir energy.

  2. Barr and Showman: Heat Transfer in Europa's Icy Shell 405 Heat Transfer in Europa's Icy Shell

    E-Print Network [OSTI]

    Europa's ice shell controls the thermal evolution of its interior and provides a source of energy surface features with steady-state thermal convection is challeng- ing, even with tidal heating, because convects, can the ocean be thermodynamically stable? What role might compositional heterogeneity play

  3. Plasma Stabilization Conducting Shells and Their Impact on TBR and Activation in CLiFF Design

    E-Print Network [OSTI]

    California at Los Angeles, University of

    Mahmoud Z. Youssef, Hesham Khater*, and Mike Kotschenreuther** Mechanical and Aerospace Engineering is achieved by solid shells (e.g. Cu, Al, FS, W, V alloy). The adverse effect of this shell on TBR is highly in the different proposed shells. Tungsten shell produces the highest level of decay heat. A shell made of V alloy

  4. Preserved macroscopic polymeric sheets of shell-binding protein in the Middle Miocene (8 to 18 Ma) gastropod Ecphora

    E-Print Network [OSTI]

    Fogel, Marilyn L

    2015-01-01T23:59:59.000Z

    105-119. Jope, M. (1967) The protein of brachiopod shell-II.Shell protein from fossil articulates: Amino acidD. (2008) Molluscan shell proteins: Primary structure,

  5. THE H.T. ODUM SYNTHESIS ESSAY Reforming Watershed Restoration: Science in Need

    E-Print Network [OSTI]

    Palmer, Margaret A.

    ;increase in water extractions or diversions (Postel and Richter 2003; Walsh et al. 2005). Over-harvesting waters are continuing to decline in many parts of the world despite major efforts made to restore them of the world, people have relied on the network of freshwater tributaries and tidal waters for recreation

  6. Electrostatic self-energy of a partially formed spherical shell in salt solution: application to stability of tethered and fluid shells -- viruses and vesicles

    E-Print Network [OSTI]

    Anze Losdorfer Bozic; Antonio Siber; Rudolf Podgornik

    2011-04-24T23:59:59.000Z

    We investigate the electrostatics of a partially formed, charged spherical shell in a salt solution. We solve the problem numerically at the Poisson-Boltzmann level and analytically in the Debye-Huckel regime. From the results on energetics of partially formed shells we examine the stability of tethered (crystalline) and fluid shells towards rupture. We clearly delineate different regimes of stability towards rupture, where, for fluid shells, we also include the effects of bending elasticity of the shells. Our analysis shows how charging of the shell induces its instability towards rupture but also provides insight regarding growth of charged shells.

  7. On-wafer monolithic encapsulation by surface micromachining with porous polysilicon shell

    E-Print Network [OSTI]

    Kim, Chang-Jin C-J; He, Rihui

    2007-01-01T23:59:59.000Z

    With Porous Polysilicon Shell Rihui He and Chang-Jin ďC. -of a nanoporous polysilicon shell, creation of a cavity bythrough the pores in the shell, and sealing the cavity at a

  8. Core-Shell Nanopillar Array Solar Cells using Cadmium Sulfide Coating on Indium Phosphide Nanopillars

    E-Print Network [OSTI]

    Tu, Bor-An Clayton

    2013-01-01T23:59:59.000Z

    Yang, ďSolution-processed core-shell nanowires for efficientYong, ďFabrication of ZnO/CdS core/shell nanowire arrays fornew fabrication method for core-shell nanopillar array solar

  9. Evolution of shell loss in Opisthobranch gastropods: sea hares (Opisthobranchia, Anaspidea) as a model system

    E-Print Network [OSTI]

    Vue, Zer

    2009-01-01T23:59:59.000Z

    Zhang, Matrix Proteins in Outer Shells of Molluscs. MarineF. and G. Luquet, Molluscan Shell Proteins. Comptes Rendusbuilds and patterns a sea shell. BMC Biol, 2006. 4: p. 40.

  10. Application to Export Electric Energy OE Doc No. EA-339-A Shell...

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

    Canada. EA-339-A Shell Energy (CN).pdf More Documents & Publications EA-339-A Shell Energy North America (US), L.P. EA-339 Shell Energy North America (US), L.P. EA-359-B Castleton...

  11. Buckling-induced encapsulation of structured elastic shells under pressure

    E-Print Network [OSTI]

    Reis, Pedro Miguel

    functional origami-like structures at the nano- and microscales (1­3), including encapsulation using hollow for dynamic actuation using a swelling-induced elastic instability (16). There are a few existing hollow shell example of a hollow shell structure satisfying geometric compatibility for gating holes. It enables

  12. Shell Crossing Singularities in Quasi-Spherical Szekeres Models

    E-Print Network [OSTI]

    Subenoy Chakraborty; Ujjal Debnath

    2007-12-16T23:59:59.000Z

    We investigate the occurrence of shell crossing singularities in quasi-spherical Szekeres dust models with or without a cosmological constant. We study the conditions for shell crossing singularity both from physical and geometrical point of view and they are in agreement.

  13. Method to produce large, uniform hollow spherical shells

    DOE Patents [OSTI]

    Hendricks, C.D.

    1983-09-26T23:59:59.000Z

    The invention is a method to produce large uniform hollow spherical shells by (1) forming uniform size drops of heat decomposable or vaporizable material, (2) evaporating the drops to form dried particles, (3) coating the dried particles with a layer of shell forming material and (4) heating the composite particles to melt the outer layer and to decompose or vaporize the inner particle to form an expanding inner gas bubble. The expanding gas bubble forms the molten outer layer into a shell of relatively large diameter. By cycling the temperature and pressure on the molten shell, nonuniformities in wall thickness can be reduced. The method of the invention is utilized to produce large uniform spherical shells, in the millimeter to centimeter diameter size range, from a variety of materials and of high quality, including sphericity, concentricity and surface smoothness, for use as laser fusion or other inertial confinement fusion targets as well as other applications.

  14. HI shells in the Leiden/Argentina/Bonn HI survey

    E-Print Network [OSTI]

    Ehlerova, S

    2013-01-01T23:59:59.000Z

    We analyse the all-sky Leiden/Argentina/Bonn HI survey, where we identify shells belonging to the Milky Way. We used an identification method based on the search of continuous regions of a low brightness temperature that are compatible with given properties of HI shells. We found 333 shells in the whole Galaxy. The size distribution of shells in the outer Galaxy is fitted by a power law with the coefficient of 2.6 corresponding to the index 1.8 in the distribution of energy sources. Their surface density decreases exponentially with a scale length of 2.8 kpc. The surface density of shells with radii >= 100 pc in the solar neighbourhood is around 4 per kpc^2 and the 2D porosity is approximately 0.7.

  15. Process to make core-shell structured nanoparticles

    DOE Patents [OSTI]

    Luhrs, Claudia; Phillips, Jonathan; Richard, Monique N

    2014-01-07T23:59:59.000Z

    Disclosed is a process for making a composite material that contains core-shell structured nanoparticles. The process includes providing a precursor in the form of a powder a liquid and/or a vapor of a liquid that contains a core material and a shell material, and suspending the precursor in an aerosol gas to produce an aerosol containing the precursor. In addition, the process includes providing a plasma that has a hot zone and passing the aerosol through the hot zone of the plasma. As the aerosol passes through the hot zone of the plasma, at least part of the core material and at least part of the shell material in the aerosol is vaporized. Vapor that contains the core material and the shell material that has been vaporized is removed from the hot zone of the plasma and allowed to condense into core-shell structured nanoparticles.

  16. Public Office or Private Marriage? An Examination of the Influence of the Relationship of the President and First Lady

    E-Print Network [OSTI]

    Hall, Lacey

    2010-04-26T23:59:59.000Z

    This study examined the impact of president and first lady interaction on presidential image, including competency, favorability and homophily. A pre-test and post-test design was used to examine the changes in participants' ...

  17. Prof. A. Nihat Berker Emeritus Professor of Physics President, Sabanci University Born 9/20/1949 in Istanbul, Turkey

    E-Print Network [OSTI]

    Gozuacik, Devrim

    Prof. A. Nihat Berker Emeritus Professor of Physics President, Sabanci University Born 9-212-483-9013 anberker@mit.edu, nihat@gursey.gov.tr http://myweb.sabanciuniv.edu/nihatberker http

  18. Taming the off-shell Higgs boson

    E-Print Network [OSTI]

    Aleksandr Azatov; Christophe Grojean; Ayan Paul; Ennio Salvioni

    2015-03-10T23:59:59.000Z

    We study the off-shell Higgs data in the process $pp\\to h^{(*)} \\to Z^{(\\ast)}Z^{(\\ast)}\\to 4\\ell$, to constrain deviations of the Higgs couplings. We point out that this channel can be used to resolve the long- and short-distance contributions to Higgs production by gluon fusion and can thus be complementary to $pp\\to ht\\bar t$ in measuring the top Yukawa coupling. Our analysis, performed in the context of Effective Field Theory, shows that current data do not allow one to draw any model-independent conclusions. We study the prospects at future hadron colliders, including the high-luminosity LHC and accelerators with higher-energy, up to 100 TeV. The available QCD calculations and the theoretical uncertainties affecting our analysis are also briefly discussed.

  19. Packing of elastic wires in flexible shells

    E-Print Network [OSTI]

    Vetter, Roman; Herrmann, Hans J

    2015-01-01T23:59:59.000Z

    The packing problem of long thin filaments that are injected into confined spaces is of fundamental interest for physicists, biologists and materials engineers alike. How linear threads pack and coil is well known only for the ideal case of rigid containers, however. Here, we force long elastic rods into flexible spatial confinement borne by an elastic shell to examine under which conditions recently acquired knowledge on wire packing in rigid spheres breaks down. We find that unlike in rigid cavities, friction plays a key role by giving rise to the emergence of two distinct packing patterns. At low friction, the wire densely coils into an ordered toroidal bundle with semi-ellipsoidal cross section, while at high friction, it packs into a highly disordered, self-similar structure. These two morphologies are shown to be separated by a continuous phase transition.

  20. Packing of elastic wires in flexible shells

    E-Print Network [OSTI]

    Roman Vetter; Falk K. Wittel; Hans J. Herrmann

    2015-04-03T23:59:59.000Z

    The packing problem of long thin filaments that are injected into confined spaces is of fundamental interest for physicists, biologists and materials engineers alike. How linear threads pack and coil is well known only for the ideal case of rigid containers, however. Here, we force long elastic rods into flexible spatial confinement borne by an elastic shell to examine under which conditions recently acquired knowledge on wire packing in rigid spheres breaks down. We find that unlike in rigid cavities, friction plays a key role by giving rise to the emergence of two distinct packing patterns. At low friction, the wire densely coils into an ordered toroidal bundle with semi-ellipsoidal cross section, while at high friction, it packs into a highly disordered, self-similar structure. These two morphologies are shown to be separated by a continuous phase transition.

  1. A New CNT-Oriented Shell Theory

    E-Print Network [OSTI]

    Antonino Favata; Paolo Podio-Guidugli

    2011-04-05T23:59:59.000Z

    A theory of linearly elastic orthotropic shells is presented, with potential application to the continuous modeling of Carbon NanoTubes. Two relevant features are: the selected type of orthotropic response, which should be suitable to capture differences in chirality; the possibility of accounting for thickness changes due to changes in inter-wall separation to be expected in multi-wall CNTs. A simpler version of the theory is also proposed, in which orthotropy is preserved but thickness changes are excluded, intended for possible application to single-wall CNTs. Another feature of both versions of the present theory is boundary-value problems of torsion, axial traction, uniform inner pressure, and rim flexure, can be solved explicitly in closed form. Various directions of ongoing further research are indicated.

  2. Double Shell Tank (DST) Utilities Specification

    SciTech Connect (OSTI)

    SUSIENE, W.T.

    2000-04-27T23:59:59.000Z

    This specification establishes the performance requirements and provides the references to the requisite codes and standards to he applied during the design of the Double-Shell Tank (DST) Utilities Subsystems that support the first phase of waste feed delivery (WFD). The DST Utilities Subsystems provide electrical power, raw/potable water, and service/instrument air to the equipment and structures used to transfer low-activity waste (LAW) and high-level waste (HLW) to designated DST staging tanks. The DST Utilities Subsystems also support the equipment and structures used to deliver blended LAW and HLW feed from these staging tanks to the River Protection Project (RPP) Privatization Contractor facility where the waste will be immobilized. This specification is intended to be the basis for new projects/installations. This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

  3. Confidential and Privileged: The President's Foreign Intelligence Advisory Board - Learning Lessons from Its Past to Shape Its Future

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    ís Foreign Intelligence Advisory Board: A Special Investigative Panel, Science at its Best, Security at its Worst: A Report on Security Problems at the U.S. Department of Energy (Washington, D.C.: GPO, 1999). The report is also available, as of October 17...confidential and privileged THE PRESIDENTíS FOREIGN INTELLIGENCE ADVISORY BOARD Learning Lessons from Its Past to Shape Its Future Kenneth Michael Absher Michael Desch Roman Popadiuk A Report Presented to the Richard Lounsbery Foundation Washington...

  4. Nuclear energy density optimization: Shell structure

    E-Print Network [OSTI]

    M. Kortelainen; J. McDonnell; W. Nazarewicz; E. Olsen; P. -G. Reinhard; J. Sarich; N. Schunck; S. M. Wild; D. Davesne; J. Erler; A. Pastore

    2014-04-28T23:59:59.000Z

    Nuclear density functional theory is the only microscopical theory that can be applied throughout the entire nuclear landscape. Its key ingredient is the energy density functional. In this work, we propose a new parameterization UNEDF2 of the Skyrme energy density functional. The functional optimization is carried out using the POUNDerS optimization algorithm within the framework of the Skyrme Hartree-Fock-Bogoliubov theory. Compared to the previous parameterization UNEDF1, restrictions on the tensor term of the energy density have been lifted, yielding a very general form of the energy density functional up to second order in derivatives of the one-body density matrix. In order to impose constraints on all the parameters of the functional, selected data on single-particle splittings in spherical doubly-magic nuclei have been included into the experimental dataset. The agreement with both bulk and spectroscopic nuclear properties achieved by the resulting UNEDF2 parameterization is comparable with UNEDF1. While there is a small improvement on single-particle spectra and binding energies of closed shell nuclei, the reproduction of fission barriers and fission isomer excitation energies has degraded. As compared to previous UNEDF parameterizations, the parameter confidence interval for UNEDF2 is narrower. In particular, our results overlap well with those obtained in previous systematic studies of the spin-orbit and tensor terms. UNEDF2 can be viewed as an all-around Skyrme EDF that performs reasonably well for both global nuclear properties and shell structure. However, after adding new data aiming to better constrain the nuclear functional, its quality has improved only marginally. These results suggest that the standard Skyrme energy density has reached its limits and significant changes to the form of the functional are needed.

  5. ReEDS Modeling of the President's 2020 U.S. Renewable Electricity Generation Goal (Presentation)

    SciTech Connect (OSTI)

    Zinaman, O.; Mai, T.; Lantz, E.; Gelman, R.; Porro, G.

    2014-05-01T23:59:59.000Z

    President Obama announced in 2012 an Administration Goal for the United States to double aggregate renewable electricity generation from wind, solar, and geothermal sources by 2020. This analysis, using the Regional Energy Deployment System (ReEDS) model, explores a full range of future renewable deployment scenarios out to 2020 to assess progress and outlook toward this goal. Under all modeled conditions, consisting of 21 scenarios, the Administration Goal is met before 2020, and as early as 2015.

  6. Presidents and prime ministers : United Kingdon-United States: 'Special Relationship' during the 1960's

    E-Print Network [OSTI]

    Thompson, Melissa S

    2013-02-22T23:59:59.000Z

    of the requirements for the 1998-99 UNIVERSITY UNDERGRADUATE RESEARCH FELLOWS PROGRAM April 15, 1999 Approved as to style and content by: r R. J. . Adams (Faculty Advisor) Department of History Susanna Finnell, Executive Director Honors Programs and Academic... Scholarships Fellows Group: Humanities Abstract Presidents and Prime Ministers: United Kingdom ? United States: 'Special Relationship' during the 1960's Melissa S. Thompson, (Dr. R. J. Q. Adams) University Undergraduate Fellow, 1998- 1999, Texas A...

  7. The fragmentation of expanding shells II: Thickness matters

    E-Print Network [OSTI]

    Wunsch, Richard; Palous, Jan; Whitworth, Anthony P

    2010-01-01T23:59:59.000Z

    We study analytically the development of gravitational instability in an expanding shell having finite thickness. We consider three models for the radial density profile of the shell: (i) an analytic uniform-density model, (ii) a semi-analytic model obtained by numerical solution of the hydrostatic equilibrium equation, and (iii) a 3D hydrodynamic simulation. We show that all three profiles are in close agreement, and this allows us to use the first model to describe fragments in the radial direction of the shell. We then use non-linear equations describing the time-evolution of a uniform oblate spheroid to derive the growth rates of shell fragments having different sizes. This yields a dispersion relation which depends on the shell thickness, and hence on the pressure confining the shell. We compare this dispersion relation with the dispersion relation obtained using the standard thin-shell analysis, and show that, if the confining pressure is low, only large fragments are unstable. On the other hand, if the...

  8. Gamow shell model and realistic nucleon-nucleon interactions

    E-Print Network [OSTI]

    G. Hagen; M. Hjorth-Jensen; N. Michel

    2006-05-27T23:59:59.000Z

    We present a new and efficient method to obtain a Gamow shell-model basis and matrix elements generated by realistic nucleon-nucleon interactions. We derive a self-consistent Hartree-Fock potential from the renormalized N3LO interaction model. The corresponding Gamow one-body eigenstates are generated in a plane wave basis in order to build a Gamow shell-model set of basis states for the closed shell nuclei 4He and 16O. We address also the problem of representing a realistic nucleon-nucleon interaction in a two-particle Berggren basis in the laboratory frame. To achieve this, an expansion of matrix elements of the residual nucleon-nucleon interaction in a finite set of harmonic oscillator wave functions is used. We show that all loosely bound and narrow resonant states converge surprisingly fast. Even broad resonances in these two-particle valence systems converge within a reasonable number of harmonic oscillator functions. Examples of 6He and 18O Gamow shell-model calculations using 4He and 16}O as closed shell cores are presented. This procedure allows Gamow shell-model calculations to be performed with all realistic nucleon-nucleon interactions and with either momentum or position space representations for the Gamow basis. The possibility to remove the center of mass spuriosity of Gamow shell-model nuclear states with this method is also discussed. Perspectives for nuclear structure calculations of dripline nuclei are outlined.

  9. Local Casimir Energies for a Thin Spherical Shell

    E-Print Network [OSTI]

    Ines Cavero-Pelaez; Kimball A. Milton; Jeffrey Wagner

    2006-02-01T23:59:59.000Z

    The local Casimir energy density for a massless scalar field associated with step-function potentials in a 3+1 dimensional spherical geometry is considered. The potential is chosen to be zero except in a shell of thickness $\\delta$, where it has height $h$, with the constraint $h\\delta=1$. In the limit of zero thickness, an ideal $\\delta$-function shell is recovered. The behavior of the energy density as the surface of the shell is approached is studied in both the strong and weak coupling regimes. The former case corresponds to the well-known Dirichlet shell limit. New results, which shed light on the nature of surface divergences and on the energy contained within the shell, are obtained in the weak coupling limit, and for a shell of finite thickness. In the case of zero thickness, the energy has a contribution not only from the local energy density, but from an energy term residing entirely on the surface. It is shown that the latter coincides with the integrated local energy density within the shell. We also study the dependence of local and global quantities on the conformal parameter. In particular new insight is provided on the reason for the divergence in the global Casimir energy in third order in the coupling.

  10. Dynamics of false vacuum bubbles: beyond the thin shell approximation

    E-Print Network [OSTI]

    Jakob Hansen; Dong-il Hwang; Dong-han Yeom

    2009-11-08T23:59:59.000Z

    We numerically study the dynamics of false vacuum bubbles which are inside an almost flat background; we assumed spherical symmetry and the size of the bubble is smaller than the size of the background horizon. According to the thin shell approximation and the null energy condition, if the bubble is outside of a Schwarzschild black hole, unless we assume Farhi-Guth-Guven tunneling, expanding and inflating solutions are impossible. In this paper, we extend our method to beyond the thin shell approximation: we include the dynamics of fields and assume that the transition layer between a true vacuum and a false vacuum has non-zero thickness. If a shell has sufficiently low energy, as expected from the thin shell approximation, it collapses (Type 1). However, if the shell has sufficiently large energy, it tends to expand. Here, via the field dynamics, field values of inside of the shell slowly roll down to the true vacuum and hence the shell does not inflate (Type 2). If we add sufficient exotic matters to regularize the curvature near the shell, inflation may be possible without assuming Farhi-Guth-Guven tunneling. In this case, a wormhole is dynamically generated around the shell (Type 3). By tuning our simulation parameters, we could find transitions between Type 1 and Type 2, as well as between Type 2 and Type 3. Between Type 2 and Type 3, we could find another class of solutions (Type 4). Finally, we discuss the generation of a bubble universe and the violation of unitarity. We conclude that the existence of a certain combination of exotic matter fields violates unitarity.

  11. Inverse Cascade Regime in Shell Models of 2-Dimensional Turbulence

    E-Print Network [OSTI]

    Thomas Gilbert; Victor S. L'vov; Anna Pomyalov; Itamar Procaccia

    2002-01-13T23:59:59.000Z

    We consider shell models that display an inverse energy cascade similar to 2-dimensional turbulence (together with a direct cascade of an enstrophy-like invariant). Previous attempts to construct such models ended negatively, stating that shell models give rise to a "quasi-equilibrium" situation with equipartition of the energy among the shells. We show analytically that the quasi-equilibrium state predicts its own disappearance upon changing the model parameters in favor of the establishment of an inverse cascade regime with K41 scaling. The latter regime is found where predicted, offering a useful model to study inverse cascades.

  12. Spurious Shell Closures in the Relativistic Mean Field Model

    E-Print Network [OSTI]

    L. S. Geng; J. Meng; H. Toki; W. H. Long; G. Shen

    2006-03-10T23:59:59.000Z

    Following a systematic theoretical study of the ground-state properties of over 7000 nuclei from the proton drip line to the neutron drip line in the relativistic mean field model [Prog. Theor. Phys. 113 (2005) 785], which is in fair agreement with existing experimental data, we observe a few spurious shell closures, i.e. proton shell closures at Z=58 and Z=92. These spurious shell closures are found to persist in all the effective forces of the relativistic mean field model, e.g. TMA, NL3, PKDD and DD-ME2.

  13. Thin-shell wormholes from regular charged black holes

    E-Print Network [OSTI]

    F. Rahaman; K A Rahman; Sk. A Rakib; Peter K. F. Kuhfittig

    2009-09-06T23:59:59.000Z

    We investigate a new thin-shell wormhole constructed by surgically grafting two regular charged black holes arising from the action using nonlinear electrodynamics coupled to general relativity. The stress-energy components within the shell violate the null and weak energy conditions but obey the strong energy condition. We study the stability in two ways: (i) taking a specific equation of state at the throat and (ii) analyzing the stability to linearized spherically symmetric perturbations about a static equilibrium solution. Various other aspects of this thin-shell wormhole are also analyzed.

  14. Compton Scattering by a Pion and off--Shell Effects

    E-Print Network [OSTI]

    S. Scherer; H. W. Fearing

    1994-08-17T23:59:59.000Z

    We consider Compton scattering by a pion in the framework of chiral perturbation theory. We investigate off--shell effects in the s-- and u--channel pole diagrams. For that purpose we perform a field transformation which, in comparison with the standard Gasser and Leutwyler Lagrangian, generates additional terms at order $p^4$ proportional to the lowest--order equation of motion. As a result of the equivalence theorem the two Lagrangians predict the same Compton scattering S--matrix even though they generate different off--shell form factors. We conclude that off--shell effects are not only model--dependent but also representation--dependent.

  15. Spherical cloaking using multilayer shells of ordinary dielectrics

    SciTech Connect (OSTI)

    Wang, Xiaohui; Chen, Fang; Semouchkina, Elena, E-mail: esemouch@mtu.edu [Department of Electrical and Computer Engineering, Michigan Technological University, Houghton, MI, 49931 (United States)] [Department of Electrical and Computer Engineering, Michigan Technological University, Houghton, MI, 49931 (United States)

    2013-11-15T23:59:59.000Z

    An approach for spherical cloaking using multilayer ordinary dielectric materials has been developed. The total scattering cross section (TSCS) of the spherical multilayer shell with metallic core was derived based on the Mie theory. The dielectric profile of the shell was optimized to minimize the TSCS of the cloaked target. The specific directions, at which the scattering could be practically eliminated, were detected. The influence of the target size and the dielectric material loss on the cloaking efficiency was analyzed. It was shown that the cloaking efficiency for larger targets could be improved by employing lossy materials in the shell.

  16. On the vacuum energy of a spherical plasma shell

    E-Print Network [OSTI]

    M. Bordag; N. Khusnutdinov

    2008-01-14T23:59:59.000Z

    We consider the vacuum energy of the electromagnetic field interacting with a spherical plasma shell together with a model for the classical motion of the shell. We calculate the heat kernel coefficients, especially that for the TM mode, and carry out the renormalization by redefining the parameters of the classical model. It turns out that this is possible and results in a model, which in the limit of the plasma shell becoming an ideal conductor reproduces the vacuum energy found by Boyer in 1968.

  17. Direct mapping of nuclear shell effects in the heaviest elements

    E-Print Network [OSTI]

    E. Minaya Ramirez; D. Ackermann; K. Blaum; M. Block; C. Droese; Ch. E. DŁllmann; M. Dworschak; M. Eibach; S. Eliseev; E. Haettner; F. Herfurth; F. P. HeŖberger; S. Hofmann; J. Ketelaer; G. Marx; M. Mazzocco; D. Nesterenko; Yu. N. Novikov; W. R. PlaŖ; D. RodrŪguez; C. Scheidenberger; L. Schweikhard; P. G. Thirolf; C. Weber

    2014-06-25T23:59:59.000Z

    Quantum-mechanical shell effects are expected to strongly enhance nuclear binding on an "island of stability" of superheavy elements. The predicted center at proton number $Z=114,120$, or $126$ and neutron number $N=184$ has been substantiated by the recent synthesis of new elements up to $Z=118$. However the location of the center and the extension of the island of stability remain vague. High-precision mass spectrometry allows the direct measurement of nuclear binding energies and thus the determination of the strength of shell effects. Here, we present such measurements for nobelium and lawrencium isotopes, which also pin down the deformed shell gap at $N=152$.

  18. Energy transfers in shell models for MHD turbulence

    E-Print Network [OSTI]

    T. Lessinnes; M. K. Verma; D. Carati

    2008-07-31T23:59:59.000Z

    A systematic procedure to derive shell models for MHD turbulence is proposed. It takes into account the conservation of ideal quadratic invariants such as the total energy, the cross-helicity and the magnetic helicity as well as the conservation of the magnetic energy by the advection term in the induction equation. This approach also leads to simple expressions for the energy exchanges as well as to unambiguous definitions for the energy fluxes. When applied to the existing shell models with nonlinear interactions limited to the nearest neighbour shells, this procedure reproduces well known models but suggests a reinterpretation of the energy fluxes.

  19. Gross shell structure at high spin in heavy nuclei

    SciTech Connect (OSTI)

    Deleplanque, Marie-Agnes; Frauendorf, Stefan; Pashkevich, Vitaly V.; Chu, S.Y.; Unzhakova, Anja

    2003-10-07T23:59:59.000Z

    Experimental nuclear moments of inertia at high spins along the yrast line have been determined systematically and found to differ from the rigid-body values. The difference is attributed to shell effect and these have been calculated microscopically. The data and quantal calculations are interpreted by means of the semiclassical Periodic Orbit Theory. From this new perspective, features in the moments of inertia as a function of neutron number and spin, as well as their relation to the shell energies can be understood. Gross shell effects persist up to the highest angular momenta observed.

  20. INNER SHELL EXCITATION OF ATOMS AND MOLECULES BY ELECTRON IMPACT WITH HIGH ENERGY RESOLUTION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    INNER SHELL EXCITATION OF ATOMS AND MOLECULES BY ELECTRON IMPACT WITH HIGH ENERGY RESOLUTION F. H resolution energy loss spectra for inner shell excited states, (2) the observa- tion of inner shell excited are the subject of the present review. The inner shell states that can usefully be studied with energy resolutions

  1. ON THE DERIVATION OF NONLINEAR SHELL MODELS FROM THREE-DIMENSIONAL ELASTICITY

    E-Print Network [OSTI]

    , 74G10, 74G65. Key words and phrases. Elasticity, shells, energy minimization, Koiter. hal-00392028ON THE DERIVATION OF NONLINEAR SHELL MODELS FROM THREE-DIMENSIONAL ELASTICITY Cristinel Mardare. A nonlinearly elastic shell is modeled either by the nonlinear three- dimensional shell model or by a nonlinear

  2. Design and Test of Tube & Shell Heat Exchangers for Potential

    E-Print Network [OSTI]

    Design and Test of Tube & Shell Heat Exchangers for Potential OTEC Application Jeong-Tae Kwon1 University, South Korea 2Department of Mechanical Engineering, Sunmoon University, South Korea 3Offshore CCS

  3. Dust-shell Universe in the modified gravity scenario

    E-Print Network [OSTI]

    Michael Maziashvili

    2005-04-15T23:59:59.000Z

    The dynamics of the dust-shell model of universe is exactly solved for the modified Schwarzschild solution. This solution is used to derive the cosmology corresponding to the modified gravity.

  4. Effects of various inefficiencies in rowing on shell speed

    E-Print Network [OSTI]

    Young, Stephen F., Jr

    2009-01-01T23:59:59.000Z

    First order predictions were made in determining the effects of various sources of inefficiency in rowing on shell speed. These predictions were then tested using a MATLAB model of the rowing stroke. The model simulates ...

  5. Scattering of infrared light by dielectric core-shell particles

    E-Print Network [OSTI]

    Thiessen, E; Heinisch, R L; Fehske, H

    2015-01-01T23:59:59.000Z

    We study the scattering of infrared light by small dielectric core-shell particles taking a sapphire sphere with a CaO core as an example. The extinction efficiency of such a particle shows two intense series of resonances attached, respectively, to in-phase and out-of-phase multipolar polarization-induced surface charges build-up, respectively, at the core-shell and the shell-vacuum interface. Both series, the character of the former may be labelled bonding and the character of the latter antibonding, give rise to anomalous scattering. For a given particle radius and filling factor the Poynting vector field shows therefore around two wave numbers the complex topology of this type of light scattering. Inside the particle the topology depends on the character of the resonance. The dissipation of energy inside the particle also reflects the core-shell structure. It depends on the resonance and shows strong spatial variations.

  6. Off-shell helicity amplitudes in high-energy factorization

    E-Print Network [OSTI]

    Piotr Kotko

    2013-09-20T23:59:59.000Z

    In the Catani-Ciafaloni-Hautmann high-energy factorization approach a cross section is expressed as a convolution of unintegrated gluon densities and a gauge-invariant hard process, in which two incoming gluons are off-shell with momenta satisfying certain high-energy kinematics. We present two methods of evaluating the tree-level hard process with multiple final states. The first one assumes that only one of the gluons is off-shell and relies on the Slavnov-Taylor identities. Such asymmetric configuration of incoming gluons is phenomenologically important in small x probing by forward processes. The second method deals also with two off-shell gluons and is based on the analytic continuation of the off-shell gluons momenta to the complex space. The methods were implemented into Monte Carlo computer programs and used in phenomenological applications. The results of both methods are straightforwardly related to Lipatov's effective vertices in quasi-multi-regge kinematics.

  7. Compressibility of Nuclear Matter from Shell Effects in Nuclei

    E-Print Network [OSTI]

    M. M. Sharma

    1999-04-13T23:59:59.000Z

    The compressibility of nuclear matter has received significant attention in the last decade and a variety of approaches have been employed to extract this fundamental property of matter. Recently, significant differences have emerged between the results of relativistic and non-relativistic calculations of breathing mode giant monopole resonance (GMR). This is due to a lack of understanding of the dynamics of GMR and of its exact relationship to the compression modulus of the infinite nuclear matter. Here, I present an alternative approach based upon nuclear shell effects. The shell effects are known to manifest experimentally in terms of particle-separation energies with an exceedingly high precision. Within the framework of the non-relativistic density-dependent Skyrme theory, it is shown that the compressibility of nuclear matter has a significant influence on shell effects in nuclei. It is shown that 2-neutron separation energies and hence the empirical shell effects can be used to constrain the compressibility of nuclear matter.

  8. Nonlinear analysis of smart composite plate and shell structures

    E-Print Network [OSTI]

    Lee, Seung Joon

    2005-08-29T23:59:59.000Z

    Theoretical formulations, analytical solutions, and finite element solutions for laminated composite plate and shell structures with smart material laminae are presented in the study. A unified third-order shear deformation theory is formulated...

  9. Double Shell Tank (DST) Monitor and Control Subsystem Specification

    SciTech Connect (OSTI)

    BAFUS, R.R.

    2000-11-03T23:59:59.000Z

    This specification revises the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Monitor and Control Subsystem that supports the first phase of Waste Feed Delivery.

  10. Double Shell Tank (DST) Process Waste Sampling Subsystem Specification

    SciTech Connect (OSTI)

    RASMUSSEN, J.H.

    2000-05-03T23:59:59.000Z

    This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied to the Double-Shell Tank (DST) Process Waste Sampling Subsystem which supports the first phase of Waste Feed Delivery.

  11. Buckling of circular steel cylindrical shells under different loading conditions†

    E-Print Network [OSTI]

    Chen, Lei

    2011-06-28T23:59:59.000Z

    Cylindrical shells are widely used in civil engineering. Examples include cooling towers, pipelines, nuclear containment vessels, steel silos and tanks for storage of bulk solids and liquids, and pressure vessels. The ...

  12. Energy conditions, traversable wormholes and dust shells

    E-Print Network [OSTI]

    Francisco S. N. Lobo

    2004-10-18T23:59:59.000Z

    Firstly, we review the pointwise and averaged energy conditions, the quantum inequality and the notion of the ``volume integral quantifier'', which provides a measure of the ``total amount'' of energy condition violating matter. Secondly, we present a specific metric of a spherically symmetric traversable wormhole in the presence of a generic cosmological constant, verifying that the null and the averaged null energy conditions are violated, as was to be expected. Thirdly, a pressureless dust shell is constructed around the interior wormhole spacetime by matching the latter geometry to a unique vacuum exterior solution. In order to further minimize the usage of exotic matter, we then find regions where the surface energy density is positive, thereby satisfying all of the energy conditions at the junction surface. An equation governing the behavior of the radial pressure across the junction surface is also deduced. Lastly, taking advantage of the construction, specific dimensions of the wormhole, namely, the throat radius and the junction interface radius, and estimates of the total traversal time and maximum velocity of an observer journeying through the wormhole, are also found by imposing the traversability conditions.

  13. ARIES-IV Nested Shell Blanket Design

    SciTech Connect (OSTI)

    Wong, C.P.C.; Redler, K.; Reis, E.E.; Will, R. [General Atomics, San Diego, CA (United States); Cheng, E. [TSI Research, Inc. (United States); Hasan, C.M.; Sharafat, S. [California Univ., Los Angeles, CA (United States)

    1993-11-01T23:59:59.000Z

    The ARIES-IV Nested Shell Blanket (NSB) Design is an alternate blanket concept of the ARIES-IV low activation helium-cooled reactor design. The reference design has the coolant routed in the poloidal direction and the inlet and outlet plena are located at the top and bottom of the torus. The NSB design has the high velocity coolant routed in the toroidal direction and the plena are located behind the blanket. This is of significance since the selected structural material is SiC-composite. The NSB is designed to have key high performance components with characteristic dimensions of no larger than 2 m. These components can be brazed to form the blanket module. For the diverter design, we eliminated the use of W as the divertor coating material by relying on the successful development of the gaseous divertor concept. The neutronics and thermal-hydraulic performance of both blanket concepts are similar. The selected blanket and divertor configurations can also meet all the projected structural, neutronics and thermal-hydraulics design limits and requirements. With the selected blanket and divertor materials, the design has a level of safety assurance rate of I (LSA-1), which indicates an inherently safe design.

  14. Policy 3004, Listing of Official Documents by Vice Presidential Area Office of the President VP for Administrative Services VP for Technology Venture Development

    E-Print Network [OSTI]

    Provancher, William

    Policy 3004, Listing of Official Documents by Vice Presidential Area Office of the President VP Agreements for student internships Patent agreements Permits & licenses re: public telecommunication

  15. Statistical techniques for characterizing residual waste in single-shell and double-shell tanks

    SciTech Connect (OSTI)

    Jensen, L., Fluor Daniel Hanford

    1997-02-13T23:59:59.000Z

    A primary objective of the Hanford Tank Initiative (HTI) project is to develop methods to estimate the inventory of residual waste in single-shell and double-shell tanks. A second objective is to develop methods to determine the boundaries of waste that may be in the waste plume in the vadose zone. This document presents statistical sampling plans that can be used to estimate the inventory of analytes within the residual waste within a tank. Sampling plans for estimating the inventory of analytes within the waste plume in the vadose zone are also presented. Inventory estimates can be used to classify the residual waste with respect to chemical and radiological hazards. Based on these estimates, it will be possible to make decisions regarding the final disposition of the residual waste. Four sampling plans for the residual waste in a tank are presented. The first plan is based on the assumption that, based on some physical characteristic, the residual waste can be divided into disjoint strata, and waste samples obtained from randomly selected locations within each stratum. The second plan is that waste samples are obtained from randomly selected locations within the waste. The third and fourth plans are similar to the first two, except that composite samples are formed from multiple samples. Common to the four plans is that, in the laboratory, replicate analytical measurements are obtained from homogenized waste samples. The statistical sampling plans for the residual waste are similar to the statistical sampling plans developed for the tank waste characterization program. In that program, the statistical sampling plans required multiple core samples of waste, and replicate analytical measurements from homogenized core segments. A statistical analysis of the analytical data, obtained from use of the statistical sampling plans developed for the characterization program or from the HTI project, provide estimates of mean analyte concentrations and confidence intervals on the mean. In addition, the statistical analysis provides estimates of spatial and measurement variabilities. The magnitude of these sources of variability are used to determine how well the inventory of the analytes in the waste have been estimated. This document provides statistical sampling plans that can be used to estimate the inventory of the analytes in the residual waste in single-shell and double-shell tanks and in the waste plume in the vadose zone.

  16. Direct Evidence of Washing out of Nuclear Shell Effects

    E-Print Network [OSTI]

    Chaudhuri, A; Banerjee, K; Bhattacharya, S; Sadhukhan, Jhilam; Bhattacharya, C; Kundu, S; Meena, J K; Mukherjee, G; Pandey, R; Rana, T K; Roy, P; Roy, T; Srivastava, V; Bhattacharya, P

    2015-01-01T23:59:59.000Z

    Constraining excitation energy at which nuclear shell effect washes out has important implications on the production of super heavy elements and many other fields of nuclear physics research. We report the fission fragment mass distribution in alpha induced reaction on an actinide target for wide excitation range in close energy interval and show direct evidence that nuclear shell effect washes out at excitation energy ~40 MeV. Calculation shows that second peak of the ?fission barrier also vanishes around similar excitation energy.

  17. Cylindrical thin-shell wormholes and energy conditions

    E-Print Network [OSTI]

    Claudio Simeone

    2012-03-16T23:59:59.000Z

    We prove the impossibility of cylindrical thin-shell wormholes supported by matter satisfying the energy conditions everywhere, under reasonable assumptions about the asymptotic behaviour of the - in general different - metrics at each side of the throat. In particular, we reproduce for singular sources previous results corresponding to flat and conical asymptotics, and extend them to a more general asymptotic behaviour. Besides, we establish necessary conditions for the possibility of non exotic cylindrical thin-shell wormholes.

  18. Fabrication of precision glass shells by joining glass rods

    DOE Patents [OSTI]

    Gac, Frank D. (Los Alamos, NM); Blake, Rodger D. (Santa Fe, NM); Day, Delbert E. (Rolla, MO); Haggerty, John S. (Lincoln, MA)

    1988-01-01T23:59:59.000Z

    A method for making uniform spherical shells. The present invention allows niform hollow spheres to be made by first making a void in a body of material. The material is heated so that the viscosity is sufficiently low so that the surface tension will transform the void into a bubble. The bubble is allowed to rise in the body until it is spherical. The excess material is removed from around the void to form a spherical shell with a uniform outside diameter.

  19. Direct Evidence of Washing out of Nuclear Shell Effects

    E-Print Network [OSTI]

    A. Chaudhuri; T. K. Ghosh; K. Banerjee; S. Bhattacharya; Jhilam Sadhukhan; C. Bhattacharya; S. Kundu; J. K. Meena; G. Mukherjee; R. Pandey; T. K. Rana; P. Roy; T. Roy; V. Srivastava; P. Bhattacharya

    2015-04-17T23:59:59.000Z

    Constraining excitation energy at which nuclear shell effect washes out has important implications on the production of super heavy elements and many other fields of nuclear physics research. We report the fission fragment mass distribution in alpha induced reaction on an actinide target for wide excitation range in close energy interval and show direct evidence that nuclear shell effect washes out at excitation energy ~40 MeV. Calculation shows that second peak of the ?fission barrier also vanishes around similar excitation energy.

  20. Nanoscale Structures Relating to the Mechanical Properties of Abalone Shell

    E-Print Network [OSTI]

    Petta, Jason

    of Nacre 1. The nacreous layer of sea-shells is composed of 95 vol.% CaCO3, and 5% organic matrix (proteins of magnitude higher than monolithic CaCO3. The fracture toughness is comparable to that of modern ceramics. #12 Orthorhombic form of CaCO3 #12;Cross-section view of Abalone Shell Figures 1a and 1b: SEM Images of cross

  1. Off-Shell Higgs Coupling Measurements in BSM scenarios

    E-Print Network [OSTI]

    Christoph Englert; Yotam Soreq; Michael Spannowsky

    2014-10-20T23:59:59.000Z

    Proposals of measuring the off-shell Higgs contributions and first measurements at the LHC have electrified the Higgs phenomenology community for two reasons: Firstly, probing interactions at high invariant masses and momentum transfers is intrinsically sensitive to new physics beyond the Standard Model, irrespective of a resonant or non-resonant character of a particular BSM scenario. Secondly, under specific assumptions a class of models exists for which the off-shell coupling measurement together with a measurement of the on-shell signal strength can be re-interpreted in terms of a bound on the total Higgs boson width. In this paper, we provide a first step towards a classification of the models for which a total width measurement is viable and we discuss examples of BSM models for which the off-shell coupling measurement can be important in either constraining or even discovering new physics in the upcoming LHC runs. Specifically, we discuss the quantitative impact of the presence of dimension six operators on the (de)correlation of Higgs on- and off-shell regions keeping track of all interference effects. We furthermore investigate off-shell measurements in a wider context of new (non-)resonant physics in Higgs portal scenarios and the MSSM.

  2. Generalized seniority with realistic interactions in open-shell nuclei

    E-Print Network [OSTI]

    M. A. Caprio; F. Q. Luo; K. Cai; Ch. Constantinou; V. Hellemans

    2014-08-30T23:59:59.000Z

    Generalized seniority provides a truncation scheme for the nuclear shell model, based on pairing correlations, which offers the possibility of dramatically reducing the dimensionality of the nuclear shell-model problem. Systematic comparisons against results obtained in the full shell-model space are required to assess the viability of this scheme. Here, we extend recent generalized seniority calculations for semimagic nuclei, the Ca isotopes, to open-shell nuclei, with both valence protons and valence neutrons. The even-mass Ti and Cr isotopes are treated in a full major shell and with realistic interactions, in the generalized seniority scheme with one broken proton pair and one broken neutron pair. Results for level energies, orbital occupations, and electromagnetic observables are compared with those obtained in the full shell-model space. We demonstrate that, even for the Ti isotopes, significant benefit would be obtained in going beyond the approximation of one broken pair of each type, while the Cr isotopes require further broken pairs to provide even qualitative accuracy.

  3. Coulomb energy of uniformly-charged spheroidal shell systems

    E-Print Network [OSTI]

    Vikram Jadhao; Zhenwei Yao; Creighton K. Thomas; Monica Olvera de la Cruz

    2015-01-15T23:59:59.000Z

    We provide exact expressions for the electrostatic energy of uniformly-charged prolate and oblate spheroidal shells. We find that uniformly-charged prolate spheroids of eccentricity greater than 0.9 have lower Coulomb energy than a sphere of the same area. For the volume-constrained case, we find that a sphere has the highest Coulomb energy among all spheroidal shells. Further, we derive the change in the Coulomb energy of a uniformly-charged shell due to small, area-conserving perturbations on the spherical shape. Our perturbation calculations show that buckling-type deformations on a sphere can lower the Coulomb energy. Finally, we consider the possibility of counterion condensation on the spheroidal shell surface. We employ a Manning-Oosawa two-state model approximation to evaluate the renormalized charge and analyze the behavior of the equilibrium free energy as a function of the shell's aspect ratio for both area-constrained and volume-constrained cases. Counterion condensation is seen to favor the formation of spheroidal structures over a sphere of equal area for high values of shell volume fractions.

  4. Automatic Detection of Expanding HI Shells Using Artificial Neural Networks

    E-Print Network [OSTI]

    Anik Daigle; Gilles Joncas; Marc Parizeau; Marc-Antoine Miville-Deschenes

    2003-04-17T23:59:59.000Z

    The identification of expanding HI shells is difficult because of their variable morphological characteristics. The detection of HI bubbles on a global scale therefore never has been attempted. In this paper, an automatic detector for expanding HI shells is presented. The detection is based on the more stable dynamical characteristics of expanding shells and is performed in two stages. The first one is the recognition of the dynamical signature of an expanding bubble in the velocity spectra, based on the classification of an artificial neural network. The pixels associated with these recognized spectra are identified on each velocity channel. The second stage consists in looking for concentrations of those pixels that were firstly pointed out, and to decide if they are potential detections by morphological and 21-cm emission variation considerations. Two test bubbles are correctly detected and a potentially new case of shell that is visually very convincing is discovered. About 0.6% of the surveyed pixels are identified as part of a bubble. These may be false detections, but still constitute regions of space with high probability of finding an expanding shell. The subsequent search field is thus significantly reduced. We intend to conduct in the near future a large scale HI shells detection over the Perseus Arm using our detector.

  5. Model space truncation in shell-model fits

    E-Print Network [OSTI]

    G. F. Bertsch; C. W. Johnson

    2009-07-07T23:59:59.000Z

    We carry out an interacting shell-model study of binding energies and spectra in the $sd$-shell nuclei to examine the effect of truncation of the shell-model spaces. Starting with a Hamiltonian defined in a larger space and truncating to the $sd$ shell, the binding energies are strongly affected by the truncation, but the effect on the excitation energies is an order of magnitude smaller. We then refit the matrix elements of the two-particle interaction to compensate for the space truncation, and find that it is easy to capture 90% of the binding energy shifts by refitting a few parameters. With the full parameter space of the two-particle Hamiltonian, we find that both the binding energies and the excitation energy can be fitted with remaining residual error about 5% of the average error from the truncation. Numerically, the rms initial error associated with our Hamiltonian is 3.4 MeV and the remaining residual error is 0.16 MeV. This is comparable to the empirical error found in $sd$-shell interacting shell model fits to experimental data\\cite{br06}.

  6. President Obama Calls for an End to Nuclear Weapons | National Nuclear

    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 forPortsmouth/Paducah ProjectPRE-AWARDenergy use is projectedEnergyPresidentSecurity

  7. President Kennedy's AEC Briefings | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    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 OurTheBrookhaven National LaboratoryJeffreyMs. LindaOfficePresident Kennedy's AEC

  8. President Issues

    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 forPortsmouth/Paducah ProjectPRE-AWARDenergy use is projectedEnergy Highlights

  9. 2012 ARPA-E Energy Innovation Summit Keynote Presentation (Bill Clinton, 42nd President of the United States)

    ScienceCinema (OSTI)

    Clinton, William J. (Bill) (42nd President of the United States)

    2012-03-21T23:59:59.000Z

    The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. Former President Bill Clinton, the 42nd President of the United States, gave the final keynote address of the 2012 Summit on February 29. He addressed the importance of government investment in research that will help move the world toward a cleaner and more secure energy future.

  10. 2012 ARPA-E Energy Innovation Summit Keynote Presentation (Bill Clinton, 42nd President of the United States)

    SciTech Connect (OSTI)

    Clinton, William J. (Bill) (42nd President of the United States) [Bill; 42nd President of the United States

    2012-02-29T23:59:59.000Z

    The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. Former President Bill Clinton, the 42nd President of the United States, gave the final keynote address of the 2012 Summit on February 29. He addressed the importance of government investment in research that will help move the world toward a cleaner and more secure energy future.

  11. Nonzero angular momentum pairing correlation in shell model

    E-Print Network [OSTI]

    S. Haq; Y. Sadeq; I. M. Hamammu

    2008-10-07T23:59:59.000Z

    A simple approximation to shell model is proposed in which the low energy excitation spectra corresponds to the identical nucleons occupying the same single particle states where they preferred to form pairs for the ground states. We call this approximation as nonzero angular momentum pairing shell model. It not only reduces the dimensionality of the shell model but also matches the number of low energy levels in experimental spectra for few cases where exact shell model predicts many more states. The special focus has been done to consider the realistic interaction derived from free nucleon-nucleon scattering data to cope with the experimental spectra. The proposed approximation to shell model has been applied to calculate the energy spectra of O18 and Ni58 nuclei where only two neutrons occupy the valence states outside the core. When compared with the experimental data, the results are found to be encouraging. It is expected that results will be more pronounced if the even-even nuclei with higher number of valence nucleons are considered.

  12. A generalized shell for dynamic security analysis in operations planning

    SciTech Connect (OSTI)

    Marceau, R.J.; Mailhot, R.; Galiana, F.D. (McGill Univ., Montreal, Quebec (Canada))

    1993-08-01T23:59:59.000Z

    This paper introduces the concept of a generalized shell for performing power-system dynamic security analysis. The generalized shell mechanizes routines traditionally carried out by human experts and that are essential to power-system dynamic security analysis, thereby greatly accelerating the realization of complex processes. The shell semantics express high-level goals and tasks using a friendly, highly compact syntax which closely matches the language of operations planners. Typically, the shell will execute appropriate load-flow and transient-stability simulations (i.e. using commercially available simulation software), perform result analysis, make input changes and repeat this process until a user-defined goal has been achieved. A working shell prototype for performing key algorithmic processes is described and results of a typical sensitivity study are presented using a 700-bus model of the Hydro-Quebec network. It is expected that the prototype will reduce study-cycle time, improve the accuracy of dynamic security limits and, indeed, transform the working environment of operations and system planners. Eventually, it can be foreseen that the approach will gravitate towards supporting on-line dynamic security analysis.

  13. President Office Vice President Office

    E-Print Network [OSTI]

    Wu, Yih-Min

    Affairs Division Computer Information Management Division Media Instruction and Production Center Division Campus Security Supplies Office Office of Research and Development Planning Section and Waste Control Division Radiation Protection Division Biological Pollution Control Division #12

  14. Shell Element Verification & Regression Problems for DYNA3D

    SciTech Connect (OSTI)

    Zywicz, E

    2008-02-01T23:59:59.000Z

    A series of quasi-static regression/verification problems were developed for the triangular and quadrilateral shell element formulations contained in Lawrence Livermore National Laboratory's explicit finite element program DYNA3D. Each regression problem imposes both displacement- and force-type boundary conditions to probe the five independent nodal degrees of freedom employed in the targeted formulation. When applicable, the finite element results are compared with small-strain linear-elastic closed-form reference solutions to verify select aspects of the formulations implementation. Although all problems in the suite depict the same geometry, material behavior, and loading conditions, each problem represents a unique combination of shell formulation, stabilization method, and integration rule. Collectively, the thirty-six new regression problems in the test suite cover nine different shell formulations, three hourglass stabilization methods, and three families of through-thickness integration rules.

  15. Antibound States and Halo Formation in the Gamow Shell Model

    E-Print Network [OSTI]

    N. Michel; W. Nazarewicz; M. Ploszajczak; J. Rotureau

    2006-09-07T23:59:59.000Z

    The open quantum system formulation of the nuclear shell model, the so-called Gamow Shell Model (GSM), is a multi-configurational SM that employs a single-particle basis given by the Berggren ensemble consisting of Gamow states and the non-resonant continuum of scattering states. The GSM is of particular importance for weakly bound/unbound nuclear states where both many-body correlations and the coupling to decay channels are essential. In this context, we investigate the role of l=0 antibound (virtual) neutron single-particle states in the shell model description of loosely bound wave functions, such as the ground state wave function of a halo nucleus 11Li.

  16. Nucleus-nucleus potential with shell-correction contribution

    E-Print Network [OSTI]

    V. Yu. Denisov

    2015-02-04T23:59:59.000Z

    The full relaxed-density potential between spherical nuclei is considered as a sum of the macroscopic and shell-correction contributions. The macroscopic part of the potential is related to a nucleus-nucleus potential obtained in the framework of the extended Thomas-Fermi approach with the Skyrme and Coulomb forces and the relaxed-density ansatz for evaluation of proton and neutron densities of interacting nuclei. A simple prescription for the shell-correction part of the total potential is discussed. The parameters of the shell-correction and macroscopic parts of the relaxed-density potential are found by fitting the empirical barrier heights of the 89 nucleus-nucleus systems as well as macroscopic potentials evaluated for 1485 nucleus-nucleus systems at 12 distances around touching points.

  17. Effective interactions and shell model studies of heavy tin isotopes

    E-Print Network [OSTI]

    M. P. Kartamyshev; T. Engeland; M. Hjorth-Jensen; E. Osnes

    2006-10-05T23:59:59.000Z

    We present results from large-scale shell-model calculations of even and odd tin isotopes from 134Sn to 142}Sn with a shell-model space defined by the 1f7/2,2p3/2,0h9/2,2p1/2,1f5/2,0i13/2 single-particle orbits. An effective two-body interaction based on modern nucleon-nucleon interactions is employed. The shell-model results are in turn analyzed for their pairing content using a generalized seniority approach. Our results indicate that a pairing-model picture captures a great deal of the structure and the correlations of the lowest lying states for even and odd isotopes.

  18. Shell Model and Mean-Field Description of Band Termination

    E-Print Network [OSTI]

    M. Zalewski; W. Satula; W. Nazarewicz; G. Stoitcheva; H. Zdunczuk

    2007-01-09T23:59:59.000Z

    We study nuclear high-spin states undergoing the transition to the fully stretched configuration with maximum angular momentum I_max within the space of valence nucleons. To this end, we perform a systematic theoretical analysis of non-fully-stretched I_max-2 and I_max-1 f_{7/2}^n seniority isomers and d_{3/2}^{-1} f_{7/2}^{n+1} intruder states in the A~44 nuclei from the lower-fp shell. We employ two theoretical approaches: (i) the density functional theory based on the cranked self-consistent Skyrme-Hartree-Fock method, and (ii) the nuclear shell model in the full sdfp configuration space allowing for 1p-1h cross-shell excitations. We emphasize the importance of restoration of broken angular momentum symmetry inherently obscuring the mean-field treatment of high-spin states. Overall good agreement with experimental data is obtained.

  19. Low-Z Shell Pellet Experiments on DIII-D

    SciTech Connect (OSTI)

    Hollmann, E. M.; Yu, J. H. [University of California-San Diego, La Jolla, CA, 92093-0417 (United States); James, A. N.; Parks, P. B.; Evans, T. E.; Humphreys, D. A.; Jackson, G. L.; La Haye, R. J.; Strait, E. J.; West, W. P.; Wu, W. [General Atomics, PO Box 85608, San Diego, CA 92186-5608 (United States); Jernigan, T. C. [Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, TN 37831 (United States)

    2009-09-10T23:59:59.000Z

    Small (o.d. = 1.8 mm, t = 0.37 mm) polystyrene shells filled with either pressurized argon gas or boron powder have been fired into DIII-D plasmas for disruption mitigation experiments. The pellet shells were observed to burn up at rhoapprox =0.5, roughly consistent with ablation rate calculations. Pellet slowing from 350 m/s down to 100 m/s was observed, which is not well-understood at present. Negligible plasma current contraction or MHD onset were seen as a result of the shell burn-up in the plasma edge, consistent with calculations. The pellet payloads were observed to ionize rapidly in the pellet vicinity (<1 cm radius) and rapid (<15 ms) mixing through the plasma core was observed.

  20. Support the President's FY07 Budget Level for DOE Science and Fusion Fusion is the process that powers the sun and the stars. A decades-long scientific effort has brought profoundly

    E-Print Network [OSTI]

    Support the President's FY07 Budget Level for DOE Science and Fusion Fusion is the process of fusion power for pulses of up to an hour. The President's budget, through the American Competitiveness construction, the President's budget provides increased funding for a number of very important domestic

  1. Overview of Hanford Single Shell Tank (SST) Structural Integrity

    SciTech Connect (OSTI)

    Rast, Richard S. [Washington River Protection Systems, Richland, WA (United States); Washenfelder, Dennis J. [Washington River Protection Systems, Richland, WA (United States); Johnson, Jeremy M. [USDOE Office of River Protection, Richland, WA (United States)

    2013-11-14T23:59:59.000Z

    To improve the understanding of the single-shell tanks (SSTs) integrity, Washington River Protection Solutions, LLC (WRPS), the USDOE Hanford Site tank contractor, developed an enhanced Single-Shell Tank Integrity Project (SSTIP) in 2009. An expert panel on SST integrity, consisting of various subject matters experts in industry and academia, was created to provide recommendations supporting the development of the project. This panel developed 33 recommendations in four main areas of interest: structural integrity, liner degradation, leak integrity and prevention, and mitigation of contamination migration, Seventeen of these recommendations were used to develop the basis for the M-45-10-1 Change Package for the Hanford Federal Agreement and Compliance Order, which is also known as the Tri-Party Agreement. The structural integrity of the tanks is a key element in completing the cleanup mission at the Hanford Site. There are eight primary recommendations related to the structural integrity of Hanford Single-Shell Tanks. Six recommendations are being implemented through current and planned activities. The structural integrity of the Hanford is being evaluated through analysis, monitoring, inspection, materials testing, and construction document review. Structural evaluation in the form of analysis is performed using modern finite element models generated in ANSYS. The analyses consider in-situ, thermal, operating loads and natural phenomena such as earthquakes. Structural analysis of 108 of 149 Hanford Single-Shell Tanks has concluded that the tanks are structurally sound and meet current industry standards. Analysis of the remaining Hanford Single-Shell Tanks is scheduled for FY2014. Hanford Single-Shell Tanks are monitored through a dome deflection program. The program looks for deflections of the tank dome greater than 1/4 inch. No such deflections have been recorded. The tanks are also subjected to visual inspection. Digital cameras record the interior surface of the concrete tanks, looking for cracks and other surface conditions that may indicate signs of structural distress. The condition of the concrete and rebar of the Hanford Single-Shell Tanks is currently being tested and planned for additional activities in the near future. Concrete and rebar removed from the dome of a 65 year old tank was tested for mechanics properties and condition. Results indicated stronger than designed concrete with additional Petrographic examination and rebar completed. Material properties determined from previous efforts combined with current testing and construction document review will help to generate a database that will provide indication of Hanford Single-Shell Tank structural integrity.

  2. Double K-shell photoionization of atomic beryllium

    SciTech Connect (OSTI)

    Yip, F. L. [Departamento de Quimica, Modulo 13, Universidad Autonoma de Madrid, E-28049 Madrid (Spain); Martin, F. [Departamento de Quimica, Modulo 13, Universidad Autonoma de Madrid, E-28049 Madrid (Spain); Instituto Madrilen (tilde sign)o de Estudios Avanzados en Nanociencia, Cantoblanco, E-28049 Madrid (Spain); McCurdy, C. W. [Department of Chemistry, University of California, Davis, California 95616 (United States); Lawrence Berkeley National Laboratory, Chemical Sciences, and Ultrafast X-ray Science Laboratory, Berkeley, California 94720 (United States); Rescigno, T. N. [Lawrence Berkeley National Laboratory, Chemical Sciences, and Ultrafast X-ray Science Laboratory, Berkeley, California 94720 (United States)

    2011-11-15T23:59:59.000Z

    Double photoionization of the core 1s electrons in atomic beryllium is theoretically studied using a hybrid approach that combines orbital and grid-based representations of the Hamiltonian. The {sup 1} S ground state and {sup 1} P final state contain a double occupancy of the 2s valence shell in all configurations used to represent the correlated wave function. Triply differential cross sections are evaluated, with particular attention focused on a comparison of the effects of scattering the ejected electrons through the spherically symmetric valence shell with similar cross sections for helium, representing a purely two-electron target with an analogous initial-state configuration.

  3. Single-shell tank retrieval program mission analysis report

    SciTech Connect (OSTI)

    Stokes, W.J.

    1998-08-11T23:59:59.000Z

    This Mission Analysis Report was prepared to provide the foundation for the Single-Shell Tank (SST) Retrieval Program, a new program responsible for waste removal for the SSTS. The SST Retrieval Program is integrated with other Tank Waste Remediation System activities that provide the management, technical, and operations elements associated with planning and execution of SST and SST Farm retrieval and closure. This Mission Analysis Report provides the basis and strategy for developing a program plan for SST retrieval. This Mission Analysis Report responds to a US Department of Energy request for an alternative single-shell tank retrieval approach (Taylor 1997).

  4. Improved Grades and Consumer Demand for In-Shell Pecans.

    E-Print Network [OSTI]

    Brison, Fred R.; Branson, Robert E.; Clark, Wayne W.; Krezdorn, A. H.; Storey, J. B.

    1959-01-01T23:59:59.000Z

    of the proposed grade index, Suc- cess cmd Mahan retail store samples that were be- low grade according to USDA grade standards, were actually superior to the U. S. No. 1 grade store sam- 1 ples of Stuart and mixed varieties. About half of the pecans sold... and at- tractiveness of the product. In many cases the quality of the pecans stocked appeared to be poor. The Stuart was the most common variety handled. It has acceptable but not superior eat- ing and shelling qualities. Shelled nuts of various...

  5. Nuclear shell-model code for massive parallel computation, "KSHELL"

    E-Print Network [OSTI]

    Noritaka Shimizu

    2013-10-21T23:59:59.000Z

    A new code for nuclear shell-model calculations, "KSHELL", is developed. It aims at carrying out both massively parallel computation and single-node computation in the same manner. We solve the Schr\\"{o}dinger's equation in the $M$-scheme shell-model model space, utilizing Thick-Restart Lanczos method. During the Lanczos iteration, the whole Hamiltonian matrix elements are generated "on-the-fly" in every matrix-vector multiplication. The vectors of the Lanczos method are distributed and stored on memory of each parallel node. We report that the newly developed code has high parallel efficiency on FX10 supercomputer and a PC with multi-cores.

  6. Gravitational collapse with rotating thin shells and cosmic censorship

    E-Print Network [OSTI]

    Jorge V. Rocha

    2015-03-17T23:59:59.000Z

    Gravitational collapse of matter in the presence of rotation is a mostly unexplored topic but it might have important implications for cosmic censorship. Recently a convenient setup was identified to address this problem, by considering thin matter shells at the interface between two equal angular momenta Myers-Perry spacetimes in five dimensions. This note provides more details about the matching of such cohomogeneity-1 spacetimes and extends the results obtained therein to arbitrary higher odd dimensions. It is also pointed out that oscillatory orbits for shells in asymptotically flat spacetimes can be naturally obtained if the matter has a negative pressure component.

  7. Office of the Vice President for Research Policy on Anesthesia, Survival Surgery and Post-Anesthetic/Post-Operative Monitoring

    E-Print Network [OSTI]

    Arnold, Jonathan

    Office of the Vice President for Research Policy on Anesthesia, Survival Surgery and Post-Anesthetic/Post-Operative Monitoring Approved by the UGA IACUC Effective September 16, 2010 Revised February 21, 2013 Anesthesia committee (IACUC) to review, and the institutional veterinarian to oversee, anesthesia, surgical procedures

  8. VI-8.00(B) UMCP POLICY ON STUDENT ALCOHOL AND OTHER DRUG ABUSE APPROVED BY PRESIDENT SEPTEMBER 9, 1992

    E-Print Network [OSTI]

    Li, Teng

    VI-8.00(B) UMCP POLICY ON STUDENT ALCOHOL AND OTHER DRUG ABUSE APPROVED BY PRESIDENT SEPTEMBER 9, 1992 I. Policy The University of Maryland at College Park is dedicated to the pursuit and dissemination of drugs and alcohol. In keeping with this commitment, it is the policy of the University that the illegal

  9. David Welch is the president of Kintama Research Services Ltd., and chief architect of the Pacific Ocean

    E-Print Network [OSTI]

    Hawai'i at Manoa, University of

    . During the next decade he was responsible for studying the ocean biology of Pacific salmon, and providedDavid Welch is the president of Kintama Research Services Ltd., and chief architect of the Pacific Ocean Shelf Tracking project (POST), which has formed the basis for the global Ocean Tracking Network

  10. 20132014 Committees of the School of Informatics and Computing, Indianapolis Campus Faculty Council President (Nominated Candidate): Edgar Huang

    E-Print Network [OSTI]

    Zhou, Yaoqi

    Council President (Nominated Candidate): Edgar Huang Committee Term (Years) BHI Representatives HCC Defazio* 1. Hsin-Liang Chen 1 2. Brad Doebbeling 2. Edgar Huang 2. Jingfeng Xia* Department Faculty Policy Polly Baker Joseph Defazio Sara Hook Edgar Huang Rachel Applegate Hsin-Liang Chen Marilyn Irwin

  11. Senate Trip to UCBA The Faculty Senate meeting and presentations by the UCBA Dean & Student Government President will

    E-Print Network [OSTI]

    Papautsky, Ian

    1 Senate Trip to UCBA The Faculty Senate meeting and presentations by the UCBA Dean & Student:15 Presentation by Dean Cady Short Thompson 3:15 ­ 3:20 Presentation by UCBA Student Government President Corey Hampton 3:20 ­ 3:30 Break and opportunity to view multimedia presentations

  12. Placing Refuge: Shell Mounds and the Archaeology of Colonial Encounters in the San Francisco Bay Area, California

    E-Print Network [OSTI]

    Schneider, Tsim Duncan

    2010-01-01T23:59:59.000Z

    fragment unIDed seed unIDed shell/testa Wood (g) Residue (g)Shellfishing, and the Shell Mound Archaic. In Engendering1991b Normative Thinking and Shell-Bearing Sites. In

  13. HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS

    SciTech Connect (OSTI)

    MACKEY, T.C.

    2006-03-17T23:59:59.000Z

    M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratory (PNNL) to perform seismic analysis of the Hanford Site double-shell tanks (DSTs) in support of a project entitled ''Double-Shell Tank (DSV Integrity Project--DST Thermal and Seismic Analyses)''. The overall scope of the project is to complete an up-to-date comprehensive analysis of record of the DST system at Hanford in support of Tri-Party Agreement Milestone M-48-14, The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). The work statement provided to M&D (PNNL 2003) required that the seismic analysis of the DSTs assess the impacts of potentially non-conservative assumptions in previous analyses and account for the additional soil mass due to the as-found soil density increase, the effects of material degradation, additional thermal profiles applied to the full structure including the soil-structure response with the footings, the non-rigid (low frequency) response of the tank roof, the asymmetric seismic-induced soil loading, the structural discontinuity between the concrete tank wall and the support footing and the sloshing of the tank waste. The seismic analysis considers the interaction of the tank with the surrounding soil and the effects of the primary tank contents. The DSTs and the surrounding soil are modeled as a system of finite elements. The depth and width of the soil incorporated into the analysis model are sufficient to obtain appropriately accurate analytical results. The analyses required to support the work statement differ from previous analysis of the DSTs in that the soil-structure interaction (SSI) model includes several (nonlinear) contact surfaces in the tank structure, and the contained waste must be modeled explicitly in order to capture the fluid-structure interaction behavior between the primary tank and contained waste.

  14. HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS

    SciTech Connect (OSTI)

    MACKEY TC; RINKER MW; CARPENTER BG; HENDRIX C; ABATT FG

    2009-01-15T23:59:59.000Z

    M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratories (PNNL) to perform seismic analysis of the Hanford Site Double-Shell Tanks (DSTs) in support of a project entitled Double-Shell Tank (DST) Integrity Project - DST Thermal and Seismic Analyses. The original scope of the project was to complete an up-to-date comprehensive analysis of record of the DST System at Hanford in support of Tri-Party Agreement Milestone M-48-14. The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). Although Milestone M-48-14 has been met, Revision I is being issued to address external review comments with emphasis on changes in the modeling of anchor bolts connecting the concrete dome and the steel primary tank. The work statement provided to M&D (PNNL 2003) required that a nonlinear soil structure interaction (SSI) analysis be performed on the DSTs. The analysis is required to include the effects of sliding interfaces and fluid sloshing (fluid-structure interaction). SSI analysis has traditionally been treated by frequency domain computer codes such as SHAKE (Schnabel, et al. 1972) and SASSI (Lysmer et al. 1999a). Such frequency domain programs are limited to the analysis of linear systems. Because of the contact surfaces, the response of the DSTs to a seismic event is inherently nonlinear and consequently outside the range of applicability of the linear frequency domain programs. That is, the nonlinear response of the DSTs to seismic excitation requires the use of a time domain code. The capabilities and limitations of the commercial time domain codes ANSYS{reg_sign} and MSC Dytran{reg_sign} for performing seismic SSI analysis of the DSTs and the methodology required to perform the detailed seismic analysis of the DSTs has been addressed in Rinker et al (2006a). On the basis of the results reported in Rinker et al. (2006a), it is concluded that time-domain SSI analysis using ANSYS{reg_sign} is justified for predicting the global response of the DSTs. The most significant difference between the current revision (Revision 1) of this report and the original issue (Revision 0) is the treatment of the anchor bolts that tie the steel dome of the primary tank to the concrete tank dome.

  15. The effect of geometry and topology on the mechanics of grid shells

    E-Print Network [OSTI]

    Malek, Samar R. (Samar Rula)

    2012-01-01T23:59:59.000Z

    The use of grid shell structures in architecture and structural engineering has risen in the past decade, yet fundamental research on the mechanics of such structures is lacking. Grid shells are long span structures comprised ...

  16. Ion irradiation of Fe-Fe oxide core-shell nanocluster films:...

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

    irradiation of Fe-Fe oxide core-shell nanocluster films: Effect of interface on stability of magnetic properties. Ion irradiation of Fe-Fe oxide core-shell nanocluster films:...

  17. Shared and closed-shell O-O interactions in silicates. | EMSL

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

    Shared and closed-shell O-O interactions in silicates. Shared and closed-shell O-O interactions in silicates. Abstract: A chemical bond is an interaction that should be detectable...

  18. Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li...

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

    Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery Anodes. Hollow Core-Shell Structured Porous Si-C Nanocomposites for Li-Ion Battery Anodes. Abstract:...

  19. Tss4U BV formerly Holecsol R S Renewable Energy Systems and Shell...

    Open Energy Info (EERE)

    Tss4U BV formerly Holecsol R S Renewable Energy Systems and Shell Solar Energy Jump to: navigation, search Name: Tss4U BV (formerly Holecsol, R&S Renewable Energy Systems and Shell...

  20. Shell Gas to Liquids in the context of a Future Fuel Strategy...

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

    Shell Gas to Liquids in the context of a Future Fuel Strategy - Technical Marketing Aspects Shell Gas to Liquids in the context of a Future Fuel Strategy - Technical Marketing...

  1. Rigid-Plastic Approximations for Predicting Plastic Deformation of Cylindrical Shells Subject to Dynamic Loading

    E-Print Network [OSTI]

    Hoo Fatt, Michelle S.

    A theoretical approach was developed for predicting the plastic deformation of a cylindrical shell subject to asymmetric dynamic loads. The plastic deformation of the leading generator of the shell is found by solving for ...

  2. A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery...

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

    Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Anodes. A Yolk-Shell Design for Stabilized and Scalable Li-Ion Battery Alloy Anodes. Abstract: Silicon is...

  3. Application to Export Electric Energy OE Doc No. EA-339-A Shell...

    Energy Savers [EERE]

    78, No. 45 - March 7, 2013 Application from Shell Energy to export electric energy to Canada. Federal Register Notice. EA-339-A Shell Energy - CN.pdf More Documents & Publications...

  4. Comparison of direct plating versus filtering of egg shells inoculated with Salmonella typhimurium†

    E-Print Network [OSTI]

    Reynolds, Paige Lea

    2002-01-01T23:59:59.000Z

    Comparison of enumeration of egg shell bacterial load by a conventional direct plating method and a neoteric filtering method was evaluated. Egg shells were inoculated with approximately 10≥ S. typhimurium organisms. Initial experiments evaluated...

  5. Comparison of direct plating versus filtering of egg shells inoculated with Salmonella typhimurium

    E-Print Network [OSTI]

    Reynolds, Paige Lea

    2002-01-01T23:59:59.000Z

    Comparison of enumeration of egg shell bacterial load by a conventional direct plating method and a neoteric filtering method was evaluated. Egg shells were inoculated with approximately 10≥ S. typhimurium organisms. Initial experiments evaluated...

  6. Entropy of a self-gravitating electrically charged thin shell and the black hole limit

    E-Print Network [OSTI]

    Lemos, Josť P S; Zaslavski, Oleg B

    2015-01-01T23:59:59.000Z

    A static self-gravitating electrically charged spherical thin shell embedded in a (3+1)-dimensional spacetime is used to study the thermodynamic and entropic properties of the corresponding spacetime. Inside the shell, the spacetime is flat, outside it is Reissner-Nordstr\\"om, and this establishes the energy density, the pressure, and the electric charge in the shell. Imposing that the shell is at a given local temperature and that the first law of thermodynamics holds on the shell one can find the integrability conditions for the temperature and for the thermodynamic electric potential, the thermodynamic equilibrium states, and the thermodynamic stability conditions. Through the integrability conditions and the first law of thermodynamics an expression for the shell's entropy can be calculated. It is found that the shell's entropy is a function of the shell's gravitational and Cauchy radii alone. A plethora of sets of temperature and electric potential equations of state can be given. One set of equations of...

  7. On a tensor-based finite element model for the analysis of shell structures†

    E-Print Network [OSTI]

    Arciniega Aleman, Roman Augusto

    2006-04-12T23:59:59.000Z

    In the present study, we propose a computational model for the linear and nonlinear analysis of shell structures. We consider a tensor-based finite element formulation which describes the mathematical shell model in a ...

  8. Report of the President's Blue Ribbon Task Group on Nuclear Weapons Program Management

    SciTech Connect (OSTI)

    Not Available

    1985-07-01T23:59:59.000Z

    The President established the Blue Ribbon Task Group on Nuclear Weapons Program Management at the direction of the Congress to address fiscal accountability and discipline in the nation's nuclear weapons program. The Task Group was asked to ''examine the procedures used by DOD and DOE in establishing requirements for, and providing resources for, the research, development, testing, production, surveillance, and retirement of nuclear weapons,'' and to recommend any needed change in coordination, budgeting, or management procedures. The Task Group was also asked to address ''whether DOD should assume the responsibility for funding current DOE weapon activities and material production programs.'' The Task Group found that the present relationship between DOD and DOE for managing the nuclear weapons program is sound. Accordingly, the Task Group sought a process for improving the integrated determination of nuclear weapon requirements and the management of nuclear weapon production.

  9. Semiclassical origin of anomalous shell effect for tetrahedral deformation in radial power-law potential model

    E-Print Network [OSTI]

    Ken-ichiro Arita; Yasunori Mukumoto

    2014-05-09T23:59:59.000Z

    Shell structures in single-particle energy spectra are investigated against regular tetrahedral type deformation using radial power-law potential model. Employing a natural way of shape parametrization which interpolates sphere and regular tetrahedron, we find prominent shell effects at rather large tetrahedral deformations, which bring about shell energies much larger than the cases of spherical and quadrupole type shapes. We discuss the semiclassical origin of these anomalous shell structures using periodic orbit theory.

  10. Stability analysis of thin-shell wormholes from charged black string

    SciTech Connect (OSTI)

    Sharif, M.; Azam, M., E-mail: msharif.math@pu.edu.pk, E-mail: azammath@gmail.com [Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590 (Pakistan)

    2013-04-01T23:59:59.000Z

    In this paper, we construct thin-shell wormholes from charged black string through cut and paste procedure and investigate its stability. We assume modified generalized Chaplygin gas as a dark energy fluid (exotic matter) present in the thin layer of matter-shell. The stability of these constructed thin-shell wormholes is investigated in the scenario of linear perturbations. We conclude that static stable as well as unstable configurations are possible for cylindrical thin-shell wormholes.

  11. Invariant Gibbs measures of the energy for shell models of turbulence; the inviscid and viscous cases

    E-Print Network [OSTI]

    Hakima Bessaih; Benedetta Ferrario

    2011-03-10T23:59:59.000Z

    Gaussian measures of Gibbsian type are associated with some shell models of 3D turbulence; they are constructed by means of the energy, a conserved quantity for the 3D inviscid and unforced shell model. We prove the existence of a unique global flow for a stochastic viscous shell model and a global flow for the deterministic inviscid shell model, with the property that these Gibbs measures are invariant for these flows.

  12. A comparison of selected physical characteristics of brown and white shell eggs

    E-Print Network [OSTI]

    Washington, Cecily Lynn

    1982-01-01T23:59:59.000Z

    . . . ~ . . ~. . . ~ Factors That Affect Egg Quality. . . . Egg Shell Color. . . . ~ . . . . . . . . . . . . . . . ition. 3 12 20 34 43 CHAPTER III ' PROCEDURE~ . . . ~ . . . 46 Statistical Analysis 49 CHAPTER IV RESULTS AND DISCUSSION. . . . . . 50 Physical Egg... of ingredients and composition of the diet used in the experiment. 47 Table 2 ~ The zelationship between egg shell color and egg weight over 11 periods of production. . . . . ~ . . 52 Table 3. The relationship between egg shell color and egg shell...

  13. Characterization of Post-mortem Shell Alteration in Aransas Bay, Texas

    E-Print Network [OSTI]

    Schirm, David Edward

    2013-06-04T23:59:59.000Z

    , are exposure of the inner crystalline structure in irregular patches and the generation of groove marks in the shell (Figure 4B). 10 Physical alterations found in field deployed shells included peeling back of the periostracum (Figure 4C), cracking... time as did the amount of abrasion to the outside of the shell (Table 1). Amygdulum and Ischadium, the two species with nacreous aragonite shells, both experienced more cracking and peeling of outer layers compared to species with different...

  14. Single-shell tank interim stabilization project plan

    SciTech Connect (OSTI)

    Ross, W.E.

    1998-05-11T23:59:59.000Z

    This project plan establishes the management framework for conduct of the TWRS Single-Shell Tank Interim Stabilization completion program. Specifically, this plan defines the mission needs and requirements; technical objectives and approach; organizational structure, roles, responsibilities, and interfaces; and operational methods. This plan serves as the project executional baseline.

  15. Single Shell Tank (SST) Interim Stabilization Project Plan

    SciTech Connect (OSTI)

    VLADIMIROFF, D.T.; BOYLES, V.C.

    2000-05-22T23:59:59.000Z

    This project plan establishes the management framework for the conduct of the CHG Single-Shell Tank Interim Stabilization completion program. Specifically, this plan defines the mission needs and requirements; technical objectives and approach; organization structure, roles, responsibilities, and interfaces; and operational methods. This plan serves as the project executional baseline.

  16. Single shell tank sluicing history and failure frequency

    SciTech Connect (OSTI)

    HERTZEL, J.S.

    1998-11-10T23:59:59.000Z

    This document assesses the potential for failure of the single-shell tanks (SSTs) that are presumably sound and helps to establish the retrieval priorities for these and the assumed leakers. Furthermore, this report examines probabilities of SST failure as a function of age and operational history, and provides a simple statistical summary of historical leak volumes, leak rates, and corrosion factor.

  17. CALCULATION OF THE NEUTRON NOISE INDUCED BY SHELL-MODE

    E-Print Network [OSTI]

    Demazière, Christophe

    CALCULATION OF THE NEUTRON NOISE INDUCED BY SHELL-MODE FISSION REACTORS CORE-BARREL VIBRATIONS-REGION SLAB REACTOR MODEL CARL SUNDE,* CHRISTOPHE DEMAZI√?RE, and IMRE P√ĀZSIT Chalmers University of Technology for Publication October 12, 2005 The subject of this paper is the calculation of the in-core neutron noise induced

  18. Generation of Core/shell Nanoparticles with Laser Ablation†

    E-Print Network [OSTI]

    Jo, Young Kyong

    2012-10-19T23:59:59.000Z

    Two types of core/shell nanoparticles (CS-NPs) generation based on laser ablation are developed in this study, namely, double pulse laser ablation and laser ablation in colloidal solutions. In addition to the study of the generation mechanism of CS...

  19. Ultrasonic Examination of Double-Shell Tank 214-AN-101

    SciTech Connect (OSTI)

    Pardini, Allan F.; Posakony, Gerald J.

    2005-11-01T23:59:59.000Z

    COEGMA Engineering Corporation (COGEMA) under a contract from CH2M Hill Hanford Group (CH2M Hill) has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AN-101. PNNL is responsible for preparing a report(s) that describes the results of the COGEMs ultrasonic examinations.

  20. Electrostatics-driven shape transitions in soft shells

    E-Print Network [OSTI]

    Vikram Jadhao; Creighton K. Thomas; Monica Olvera de la Cruz

    2014-09-12T23:59:59.000Z

    Manipulating the shape of nanoscale objects in a controllable fashion is at the heart of designing materials that act as building blocks for self-assembly or serve as targeted drug delivery carriers. Inducing shape deformations by controlling external parameters is also an important way of designing biomimetic membranes. In this paper, we demonstrate that electrostatics can be used as a tool to manipulate the shape of soft, closed membranes by tuning environmental conditions such as the electrolyte concentration in the medium. Using a molecular dynamics-based simulated annealing procedure, we investigate charged elastic shells that do not exchange material with their environment, such as elastic membranes formed in emulsions or synthetic nanocontainers. We find that by decreasing the salt concentration or increasing the total charge on the shell's surface, the spherical symmetry is broken, leading to the formation of ellipsoids, discs, and bowls. Shape changes are accompanied by a significant lowering of the electrostatic energy and a rise in the surface area of the shell. To substantiate our simulation findings, we show analytically that a uniformly charged disc has a lower Coulomb energy than a sphere of the same volume. Further, we test the robustness of our results by including the effects of charge renormalization in the analysis of the shape transitions and find the latter to be feasible for a wide range of shell volume fractions.

  1. Fitting Single Particle Energies in $sdgh$ Major Shell

    E-Print Network [OSTI]

    Dikmen, E; Cengiz, Y

    2015-01-01T23:59:59.000Z

    We have performed two kinds of non-linear fitting procedures to the single-particle energies in the $sdgh$ major shell to obtain better shell model results. The low-lying energy eigenvalues of the light Sn isotopes with $A=103-110$ in the $sdgh$-shell are calculated in the framework of the nuclear shell model by using CD-Bonn two-body effective nucleon-nucleon interaction. The obtained energy eigenvalues are fitted to the corresponding experimental values by using two different non-linear fitting procedures, i.e., downhill simplex method and clonal selection method. The unknown single-particle energies of the states $2s_{1/2}$, $1d_{3/2}$, and $0h_{11/2}$ are used in the fitting methods to obtain better spectra of the $^{104,106,108,110}$Sn isotopes. We compare the energy spectra of the $^{104,106,108,110}$Sn and $^{103,105,107,109}$Sn isotopes with/without a nonlinear fit to the experimental results.

  2. Fitting Single Particle Energies in $sdgh$ Major Shell

    E-Print Network [OSTI]

    E. Dikmen; O. ÷ztŁrk; Y. Cengiz

    2015-02-12T23:59:59.000Z

    We have performed two kinds of non-linear fitting procedures to the single-particle energies in the $sdgh$ major shell to obtain better shell model results. The low-lying energy eigenvalues of the light Sn isotopes with $A=103-110$ in the $sdgh$-shell are calculated in the framework of the nuclear shell model by using CD-Bonn two-body effective nucleon-nucleon interaction. The obtained energy eigenvalues are fitted to the corresponding experimental values by using two different non-linear fitting procedures, i.e., downhill simplex method and clonal selection method. The unknown single-particle energies of the states $2s_{1/2}$, $1d_{3/2}$, and $0h_{11/2}$ are used in the fitting methods to obtain better spectra of the $^{104,106,108,110}$Sn isotopes. We compare the energy spectra of the $^{104,106,108,110}$Sn and $^{103,105,107,109}$Sn isotopes with/without a nonlinear fit to the experimental results.

  3. Casimir energy of a spherical shell in $?-$Minkowski spacetime

    E-Print Network [OSTI]

    Hyeong-Chan Kim; Chaiho Rim; Jae Hyung Yee

    2008-12-12T23:59:59.000Z

    We study the Casimir energy of a spherical shell of radius $a$ in $\\kappa$-Minkowski spacetime for a complex field with an asymmetric ordering and obtain the energy up to $O(1/\\kappa^2)$. We show that the vacuum breaks particle and anti-particle symmetry if one requires the spectra to be consistent with the blackbody radiation at the commutative limit.

  4. Wilson lines and gauge invariant off-shell amplitudes

    E-Print Network [OSTI]

    Piotr Kotko

    2014-04-24T23:59:59.000Z

    We study matrix elements of Fourier-transformed straight infinite Wilson lines as a way to calculate gauge invariant tree-level amplitudes with off-shell gluons. The off-shell gluons are assigned "polarization vectors" which (in the Feynman gauge) are transverse to their off-shell momenta and define the direction of the corresponding Wilson line operators. The infinite Wilson lines are first regularized to prove the correctness of the method. We have implemented the method in a computer FORM program that can calculate gluonic matrix elements of Wilson line operators automatically. In addition we formulate the Feynman rules that are convenient in certain applications, e.g. proving the Ward identities. Using both the program and the Feynman rules we calculate a few examples, in particular the matrix elements corresponding to gauge invariant $g^{*}g^{*}g^{*}g$ and $g^{*}g^{*}g^{*}g^{*}g$ processes. An immediate application of the approach is in the high energy scattering, as in a special kinematic setup our results reduce to the form directly related to Lipatov's vertices. Thus the results we present can be directly transformed into Lipatov's vertices, in particular into $RRRP$ and $RRRRP$ vertices with arbitrary "orientation" of reggeized gluons. Since the formulation itself is not restricted to high-energy scattering, we also apply the method to a decomposition of an ordinary on-shell amplitude into a set of gauge invariant objects.

  5. Spherically symmetric gravitating shell as a reparametrization invariant system

    E-Print Network [OSTI]

    P. Hajicek; Berne

    1997-08-18T23:59:59.000Z

    The subject of this paper are spherically symmetric thin shells made of barotropic ideal fluid and moving under the influence of their own gravitational field as well as that of a central black hole; the cosmological constant is assumed to be zero. The general super-Hamiltonian derived in a previous paper is rewritten for this spherically symmetric special case. The dependence of the resulting action on the gravitational variables is trivialized by a transformation due to Kucha\\v{r}. The resulting variational principle depends only on shell variables, is reparametrization invariant, and includes both first- and second-class constraints. Several equivalent forms of the constrained system are written down. Exclusion of the second-class constraints leads to a super-Hamiltonian which appears to overlap with that by Ansoldi et al. in a quarter of the phase space. As Kucha\\v{r}' variables are singular at the horizons of both Schwarzschild spacetimes inside and outside the shell, the dynamics is first well-defined only inside of 16 disjoint sectors. The 16 sectors are, however, shown to be contained in a single, connected symplectic manifold and the constraints are extended to this manifold by continuity. Poisson bracket between no two independent spacetime coordinates of the shell vanish at any intersection of two horizons.

  6. Generation of Core/shell Nanoparticles with Laser Ablation

    E-Print Network [OSTI]

    Jo, Young Kyong

    2012-10-19T23:59:59.000Z

    Two types of core/shell nanoparticles (CS-NPs) generation based on laser ablation are developed in this study, namely, double pulse laser ablation and laser ablation in colloidal solutions. In addition to the study of the generation mechanism of CS...

  7. On the origin of two-shell supernova remnants

    E-Print Network [OSTI]

    V. V. Gvaramadze

    2007-12-27T23:59:59.000Z

    The proper motion of massive stars could cause them to explode far from the geometric centers of their wind-driven bubbles and thereby could affect the symmetry of the resulting diffuse supernova remnants. We use this fact to explain the origin of SNRs consisting of two partially overlapping shells (e.g. Cygnus Loop, 3C 400.2, etc.).

  8. Double Shell Tank (DST) Monitor and Control Subsystem Definition Report

    SciTech Connect (OSTI)

    BAFUS, R.R.

    2000-03-16T23:59:59.000Z

    The system description of the Double-Shell Tank (DST) Monitor and Control Subsystem establishes the system boundaries and describes the interface of the DST Monitor and Control Subsystem with new and existing systems that are required to accomplish the Waste Feed Delivery (WFD) mission.

  9. Dynamic Buckling and Recovery of Thin Cylindrical Shape Memory Shells

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    Dynamic Buckling and Recovery of Thin Cylindrical Shape Memory Shells Mahmoud Reza Amini and Sia@ucsd.edu Phone: (858) 534-6525 FAX: (858) 534-2727 Abstract Shape-memory alloys can sustain relatively large consisting of shape-memory alloys in order to understand the response when used as the core of the sandwich

  10. Assembly of ordered carbon shells on semiconducting nanomaterials

    DOE Patents [OSTI]

    Sutter, Eli Anguelova; Sutter, Peter Werner

    2012-10-02T23:59:59.000Z

    In some embodiments of the invention, encapsulated semiconducting nanomaterials are described. In certain embodiments the nanostructures described are semiconducting nanomaterials encapsulated with ordered carbon shells. In some aspects a method for producing encapsulated semiconducting nanomaterials is disclosed. In some embodiments applications of encapsulated semiconducting nanomaterials are described.

  11. Double Shell Tank AY-102 Radioactive Waste Leak Investigation

    SciTech Connect (OSTI)

    Washenfelder, Dennis J.

    2014-04-10T23:59:59.000Z

    PowerPoint. The objectives of this presentation are to: Describe Effort to Determine Whether Tank AY-102 Leaked; Review Probable Causes of the Tank AY-102 Leak; and, Discuss Influence of Leak on Hanfordís Double-Shell Tank Integrity Program.

  12. Single Shell Tank (SST) Retrieval Sequence FY 2000 Update

    SciTech Connect (OSTI)

    GARFIELD, J.S.

    2000-09-27T23:59:59.000Z

    This document describes the baseline single-shell tank (SST) waste retrieval sequence for the River Protection Project (RPP) updated for Fiscal Year 2000. The SST retrieval sequence identifies the proposed retrieval order (sequence), the tank selection and prioritization rationale, and planned retrieval dates for Hanford SSTs. In addition, the tank selection criteria and reference retrieval method for this sequence are discussed.

  13. Double Passive Cavitation Detection of OptisonTM Shell Rupture

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    Double Passive Cavitation Detection of OptisonTM Shell Rupture Azzdine Y. Ammi1 , Robin O). The experimental setup is based on a passive cavitation detection system described in previous work. However by ultrasonic capsule destruction [3,4]. In previous work using a passive cavitation detection (PCD) system [5

  14. Shell-instability generated waves by low energy electrons on converging magnetic field lines

    E-Print Network [OSTI]

    California at Berkeley, University of

    Shell-instability generated waves by low energy electrons on converging magnetic field lines D of observations of such shell type distributions having positive slope in velocity space at low energies, about 10¬īcre¬īau (2006), Shell-instability generated waves by low energy electrons on converging magnetic field lines

  15. SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY

    E-Print Network [OSTI]

    Lewicka, Marta

    SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY MARTA LEWICKA, MARIA to minimizers of suitable lower dimensional limit energies. In this paper we discuss shell theories arising of -limit) of the 3d nonlinear elasticity for thin shells around an arbitrary smooth 2d surface

  16. Local Casimir Energies for a Thin Spherical Shell Ines Cavero-Pelaez,

    E-Print Network [OSTI]

    Milton, Kim

    Local Casimir Energies for a Thin Spherical Shell In¬īes Cavero-Pel¬īaez, Kimball A. Milton. In the limit of zero thickness, an ideal -function shell is recovered. The behavior of the energy density of surface divergences and on the energy contained within the shell, are obtained in the weak coupling limit

  17. SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY

    E-Print Network [OSTI]

    SHELL THEORIES ARISING AS LOW ENERGY -LIMIT OF 3D NONLINEAR ELASTICITY By Marta Lewicka Maria that the elastic energy of defor- mations scales like h4, h being the thickness of a shell, we derive a limiting dimensional limit energies. In this paper we discuss shell theories arising as -limits of higher scalings

  18. ANALYTIC STUDY OF SHELL MODELS OF TURBULENCE PETER CONSTANTIN, BORIS LEVANT, AND EDRISS S. TITI

    E-Print Network [OSTI]

    Constantin, Peter

    Abstract. In this paper we study analytically the viscous sabra shell model of energy turbulent cascade. We of the energy-cascade mechanism in turbulence can be found in [2]. The sabra shell model of turbulence describes". The equations of motion of the sabra shell model of turbu- lence have the following form dun dt = i(akn+1un+2u n

  19. Energy transfer in nanowire solar cells with photon-harvesting shells C. H. Peters,a

    E-Print Network [OSTI]

    McGehee, Michael

    Energy transfer in nanowire solar cells with photon-harvesting shells C. H. Peters,a A. R. Guichard; published online 23 June 2009 The concept of a nanowire solar cell with photon-harvesting shells are bonded to the surface of the SiNWs forming a thin shell. They absorb the low-energy photons

  20. GETTING STARTED WITH UNIX The Unix Shell: Working With A Command Line Interface

    E-Print Network [OSTI]

    Rudowsky, Ira

    GETTING STARTED WITH UNIX ROADMAP: · The Unix Shell: Working With A Command Line Interface · Standard Output · Command-Line Arguments · Redirecting Standard Output To A File · Displaying Files;THE UNIX SHELL: WORKING WITH A COMMAND-LINE-INTERFACE The Unix shell is a COMMAND-LINE-INTERFACE (CLI

  1. Shell structure and orbit bifurcations in finite fermion systems

    E-Print Network [OSTI]

    A. G. Magner; I. S. Yatsyshyn; K. Arita; M. Brack

    2010-12-07T23:59:59.000Z

    We first give an overview of the shell-correction method which was developed by V. M. Strutinsky as a practicable and efficient approximation to the general selfconsistent theory of finite fermion systems suggested by A. B. Migdal and collaborators. Then we present in more detail a semiclassical theory of shell effects, also developed by Strutinsky following original ideas of M. Gutzwiller. We emphasize, in particular, the influence of orbit bifurcations on shell structure. We first give a short overview of semiclassical trace formulae, which connect the shell oscillations of a quantum system with a sum over periodic orbits of the corresponding classical system, in what is usually called the "periodic orbit theory". We then present a case study in which the gross features of a typical double-humped nuclear fission barrier, including the effects of mass asymmetry, can be obtained in terms of the shortest periodic orbits of a cavity model with realistic deformations relevant for nuclear fission. Next we investigate shell structures in a spheroidal cavity model which is integrable and allows for far-going analytical computation. We show, in particular, how period-doubling bifurcations are closely connected to the existence of the so-called "superdeformed" energy minimum which corresponds to the fission isomer of actinide nuclei. Finally, we present a general class of radial power-law potentials which approximate well the shape of a Woods-Saxon potential in the bound region, give analytical trace formulae for it and discuss various limits (including the harmonic oscillator and the spherical box potentials).

  2. Industrial mixing techniques for Hanford double-shell tanks

    SciTech Connect (OSTI)

    Daymo, E.A.

    1997-09-01T23:59:59.000Z

    Jet mixer pumps are currently the baseline technology for sludge mobilization and mixing in one-million gallon double-shell tanks at the Hanford and Savannah River Sites. Improvements to the baseline jet mixer pump technology are sought because jet mixer pumps have moving parts that may fail or require maintenance. Moreover, jet mixers are relatively expensive, they heat the waste, and, in some cases, may not mobilize enough of the sludge. This report documents a thorough literature search for commercially available applicable mixing technologies that could be used for double-shell tank sludge mobilization and mixing. Textbooks, research articles, conference proceedings, mixing experts, and the Thomas Register were consulted to identify applicable technologies. While there are many commercial methods that could be used to mobilize sludge or mix the contents of a one-million gallon tank, few will work given the geometrical constraints (e.g., the mixer must fit through a 1.07-m-diameter riser) or the tank waste properties (e.g., the sludge has such a high yield stress that it generally does not flow under its own weight). Pulsed fluid jets and submersible Flygt mixers have already been identified at Hanford and Savannah River Sites for double-shell tank mixing applications. While these mixing technologies may not be applicable for double-shell tanks that have a thick sludge layer at the bottom (since too many of these mixers would need to be installed to mobilize most of the sludge), they may have applications in tanks that do not have a settled solids layer. Retrieval projects at Hanford and other U.S. Department of Energy sites are currently evaluating the effectiveness of these mixing techniques for tank waste applications. The literature search did not reveal any previously unknown technologies that should be considered for sludge mobilization and mixing in one-million gallon double-shell tanks.

  3. Tunable mechanical and thermal properties of ZnS/CdS core/shell nanowires

    E-Print Network [OSTI]

    Mandal, Taraknath; Maiti, Prabal K

    2015-01-01T23:59:59.000Z

    Using all atom molecular dynamics (MD) simulations, we have studied the mechanical properties of ZnS/CdS core/shell nanowires. Our results show that the coating of a few atomic layer CdS shell on the ZnS nanowire leads to a significant change in the stiffness of the core/shell nanowires compared to the stiffness of pure ZnS nanowires. The binding energy between the core and shell region decreases due to the lattice mismatch at the core-shell interface. This reduction in binding energy plays an important role in determining the stiffness of a core/shell nanowire. We have also investigated the effects of the shell on the thermal conductivity and melting behavior of the nanowires.

  4. Office of the President One Washington Square San Jose, California 95192-0002 408/924-1177 April 30, 1996 PD 96-01

    E-Print Network [OSTI]

    Su, Xiao

    /924-1177 April 30, 1996 PD 96-01 TO: Campus Community FROM: Robert L. Caret President SUBJECT: Presidential; reappointment is permitted. The policies and operating procedures of the SHAC shall be determined

  5. The Board of Trustees of The City University of New York and the Presidential Search Committee invite nominations and applications for the position of President at Kingsborough Community

    E-Print Network [OSTI]

    Qiu, Weigang

    The Board of Trustees of The City University of New York and the Presidential Search Committee permit all students to succeed to the maximum of their abilities. The President serves as chief academic

  6. Double Shell Tank (DST) Transfer Piping Subsystem Specification

    SciTech Connect (OSTI)

    GRAVES, C.E.

    2000-03-22T23:59:59.000Z

    This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Transfer Piping Subsystem that supports the first phase of Waste Feed Delivery. This specification establishes the performance requirements and provides references to the requisite codes and standards to be applied during design of the Double-Shell Tank (DST) Transfer Piping Subsystem that supports the first phase of waste feed delivery. This subsystem transfers waste between transfer-associated structures (pits) and to the River Protection Project (RPP) Privatization Contractor Facility where it will be processed into an immobilized waste form. This specification is intended to be the basis for new projects/installations (W-521, etc.). This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

  7. On the energy invariance of open-shell perturbation theory with respect to unitary transformations of molecular orbitals

    E-Print Network [OSTI]

    Crawford, T. Daniel

    On the energy invariance of open-shell perturbation theory with respect to unitary transformations orbitals leave the energy unchanged. For high- spin open-shell wave functions, spatial orbital rotations-reference open-shell perturbation theories based on a spin-restricted open-shell Hartree-Fock reference function

  8. Decaying and kicked turbulence in a shell model

    E-Print Network [OSTI]

    Jan-Otto Hooghoudt; Detlef Lohse; Federico Toschi

    2000-12-06T23:59:59.000Z

    Decaying and periodically kicked turbulence are analyzed within the GOY shell model, to allow for sufficiently large scaling regimes. Energy is transfered towards the small scales in intermittent bursts. Nevertheless, mean field arguments are sufficient to account for the ensemble averaged energy decay E(t) \\~t^{-2} or the parameter dependences for the ensemble averaged total energy in the kicked case. Within numerical precision, the inertial subrange intermittency remains the same, whether the system is forced or decaying.

  9. Single-shell tank interim stabilization project plan

    SciTech Connect (OSTI)

    Ross, W.E.

    1998-03-27T23:59:59.000Z

    Solid and liquid radioactive waste continues to be stored in 149 single-shell tanks at the Hanford Site. To date, 119 tanks have had most of the pumpable liquid removed by interim stabilization. Thirty tanks remain to be stabilized. One of these tanks (C-106) will be stabilized by retrieval of the tank contents. The remaining 29 tanks will be interim stabilized by saltwell pumping. In the summer of 1997, the US Department of Energy (DOE) placed a moratorium on the startup of additional saltwell pumping systems because of funding constraints and proposed modifications to the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) milestones to the Washington State Department of Ecology (Ecology). In a letter dated February 10, 1998, Final Determination Pursuant to Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) in the Matter of the Disapproval of the DOE`s Change Control Form M-41-97-01 (Fitzsimmons 1998), Ecology disapproved the DOE Change Control Form M-41-97-01. In response, Fluor Daniel Hanford, Inc. (FDH) directed Lockheed Martin Hanford Corporation (LNMC) to initiate development of a project plan in a letter dated February 25, 1998, Direction for Development of an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan in Support of Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement). In a letter dated March 2, 1998, Request for an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan, the DOE reaffirmed the need for an aggressive SST interim stabilization completion project plan to support a finalized Tri-Party Agreement Milestone M-41 recovery plan. This project plan establishes the management framework for conduct of the TWRS Single-Shell Tank Interim Stabilization completion program. Specifically, this plan defines the mission needs and requirements; technical objectives and approach; organizational structure, roles, responsibilities, and interfaces; and operational methods. The plan is based on realistic assumptions and addresses three separate funding scenarios.

  10. Coupling Extraction From Off-Shell Cross-sections

    E-Print Network [OSTI]

    Baradhwaj Coleppa; Tanumoy Mandal; Subhadip Mitra

    2014-10-09T23:59:59.000Z

    In this note, we present a novel method of extracting the couplings of a new heavy particle to the Standard Model states. Contrary to the usual discovery process which involves studying the on-shell production, we look at regions away from resonance to take advantage of the simple scaling of the cross-section with the couplings. We apply the procedure to the case of a heavy quark as an illustration.

  11. Off-shell Bethe vectors and Drinfeld currents

    E-Print Network [OSTI]

    Sergey Khoroshkin; Stanislav Pakuliak; Vitaly Tarasov

    2006-12-12T23:59:59.000Z

    In this paper we compare two constructions of weight functions (off-shell Bethe vectors) for the quantum affine algebra $U_q(\\hat{\\mathfrak{gl}}_N)$. The first construction comes from the algebraic nested Bethe ansatz. The second one is defined in terms of certain projections of products of Drinfeld currents. We show that two constructions give the same result in tensor products of vector representations of $U_q(\\hat{\\mathfrak{gl}}_N)$.

  12. On-shell Recursion Relations for n-point QCD

    E-Print Network [OSTI]

    Darren Forde

    2006-08-03T23:59:59.000Z

    We present on the use of on-shell recursion relations. These can be used not only for calculating tree amplitudes, including those with masses, but also to compute analytically the missing rational terms of one-loop QCD amplitudes. Combined with the cut-containing pieces calculated using a unitarity approach complete one-loop QCD amplitudes can be derived. This approach is discussed in the context of the adjacent 2-minus all-multiplicity QCD gluon amplitude.

  13. Off-Shell NN Potential and Triton Binding Energy

    E-Print Network [OSTI]

    Y. Song; R. Machleidt

    1994-03-31T23:59:59.000Z

    The NONLOCAL Bonn-B potential predicts 8.0 MeV binding energy for the triton (in a charge-dependent 34-channel Faddeev calculation) which is about 0.4 MeV more than the predictions by LOCAL NN potentials. We pin down origin and size of the nonlocality in the Bonn potential, in analytic and numeric form. The nonlocality is due to the use of the correct off-shell Feynman amplitude of one-boson-exchange avoiding the commonly used on-shell approximations which yield the local potentials. We also illustrate how this off-shell behavior leads to more binding energy. We emphasize that the increased binding energy is not due to on-shell differences (differences in the fit of the NN data or phase shifts). In particular, the Bonn-B potential reproduces accurately the $\\epsilon_1$ mixing parameter up to 350 MeV as determined in the recent Nijmegen multi-energy NN phase-shift analysis. Adding the relativistic effect from the relativistic nucleon propagators in the Faddeev equations, brings the Bonn-B result up to 8.2 MeV triton binding. This leaves a difference of only 0.3 MeV to experiment, which may possibly be explained by refinements in the treatment of relativity and the inclusion of other nonlocalities (e.~g., quark-gluon exchange at short range). Thus, it is conceivable that a realistic NN potential which describes the NN data up to 300 MeV correctly may explain the triton binding energy without recourse to 3-N forces; relativity would play a major role for this result.

  14. Energy dissipation statistics in a shell model of turbulence

    E-Print Network [OSTI]

    G. Boffetta; A. Celani; D. Roagna

    1999-09-30T23:59:59.000Z

    The Reynolds number dependence of the statistics of energy dissipation is investigated in a shell model of fully developed turbulence. The results are in agreement with a model which accounts for fluctuations of the dissipative scale with the intensity of energy dissipation. It is shown that the assumption of a fixed dissipative scale leads to a different scaling with Reynolds which is not compatible with numerical results.

  15. Cross Sections for Inner-Shell Ionization by Electron Impact

    SciTech Connect (OSTI)

    Llovet, Xavier, E-mail: xavier@ccit.ub.edu [Centres CientŪfics i TecnolÚgics, Universitat de Barcelona, LluŪs Solť i SabarŪs 1-3, 08028 Barcelona (Spain)] [Centres CientŪfics i TecnolÚgics, Universitat de Barcelona, LluŪs Solť i SabarŪs 1-3, 08028 Barcelona (Spain); Powell, Cedric J. [Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8370 (United States)] [Materials Measurement Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8370 (United States); Salvat, Francesc [Facultat de FŪsica (ECM and ICC), Universitat de Barcelona, Diagonal 645, 08028 Barcelona (Spain)] [Facultat de FŪsica (ECM and ICC), Universitat de Barcelona, Diagonal 645, 08028 Barcelona (Spain); Jablonski, Aleksander [Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw (Poland)] [Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw (Poland)

    2014-03-15T23:59:59.000Z

    An analysis is presented of measured and calculated cross sections for inner-shell ionization by electron impact. We describe the essentials of classical and semiclassical models and of quantum approximations for computing ionization cross sections. The emphasis is on the recent formulation of the distorted-wave Born approximation by Bote and Salvat [Phys. Rev. A 77, 042701 (2008)] that has been used to generate an extensive database of cross sections for the ionization of the K shell and the L and M subshells of all elements from hydrogen to einsteinium (Z = 1 to Z = 99) by electrons and positrons with kinetic energies up to 1 GeV. We describe a systematic method for evaluating cross sections for emission of x rays and Auger electrons based on atomic transition probabilities from the Evaluated Atomic Data Library of Perkins et al. [Lawrence Livermore National Laboratory, UCRL-ID-50400, 1991]. We made an extensive comparison of measured K-shell, L-subshell, and M-subshell ionization cross sections and of L? x-ray production cross sections with the corresponding calculated cross sections. We identified elements for which there were at least three (for K shells) or two (for L and M subshells) mutually consistent sets of cross-section measurements and for which the cross sections varied with energy as expected by theory. The overall average root-mean-square deviation between the measured and calculated cross sections was 10.9% and the overall average deviation was ?2.5%. This degree of agreement between measured and calculated ionization and x-ray production cross sections was considered to be very satisfactory given the difficulties of these measurements.

  16. 241-AY Double Shell Tanks (DST) Integrity Assessment Report

    SciTech Connect (OSTI)

    JENSEN, C.E.

    1999-09-21T23:59:59.000Z

    This report presents the results of the integrity assessment of the 241-AY double-shell tank farm facility located in the 200 East Area of the Hanford Site. The assessment included the design evaluation and integrity examinations of the tanks and concluded that the facility is adequately designed, is compatible with the waste, and is fit for use. Recommendations including subsequent examinations. are made to ensure the continued safe operation of the tanks.

  17. 241-AZ Double Shell Tanks (DST) Integrity Assessment Report

    SciTech Connect (OSTI)

    JENSEN, C.E.

    1999-09-21T23:59:59.000Z

    This report presents the results of the integrity assessment of the 241-A2 double-shell tank farm facility located in the 200 East Area of the Hanford Site. The assessment included the design evaluation and integrity examinations of the tanks and concluded that the facility is adequately designed, is compatible with the waste, and is fit for use. Recommendations including subsequent examinations, are made to ensure the continued safe operation of the tanks.

  18. Double Shell Tank (DST) Process Waste Sampling Subsystem Definition Report

    SciTech Connect (OSTI)

    RASMUSSEN, J.H.

    2000-04-25T23:59:59.000Z

    This report defines the Double-Shell Tank (DST) Process Waste Sampling Subsystem (PWSS). This subsystem definition report fully describes and identifies the system boundaries of the PWSS. This definition provides a basis for developing functional, performance, and test requirements (i.e., subsystem specification), as necessary, for the PWSS. The resultant PWSS specification will include the sampling requirements to support the transfer of waste from the DSTs to the Privatization Contractor during Phase 1 of Waste Feed Delivery.

  19. 241-SY Double Shell Tanks (DST) Integrity Assessment Report

    SciTech Connect (OSTI)

    JENSEN, C.E.

    1999-09-21T23:59:59.000Z

    This report presents the results of the integrity assessment of the 241-SY double-shell tank farm facility located in the 200 West Area of the Hanford Site. The assessment included the design evaluation and integrity examinations of the tanks and concluded that the facility is adequately designed, is compatible with the waste, and is fit for use. Recommendations including subsequent examinations, are made to ensure the continued safe operation of the tanks.

  20. Rotordynamic analysis with shell elements for the transfer matrix method

    E-Print Network [OSTI]

    L'Antigua, Edward Anthony

    1989-01-01T23:59:59.000Z

    Committee) Al B. elazzo1o (Member) John T. Tielki g (Member) Michael J. Rabins (Head of Department) August 1989 111 ABSTRACT Rotordynamic Analysis with Shell Elements for the Transi'er Matrix Method. (August 1989) Edward Anthony L'Antigua, B. M... Varying Bending Load with (-') = . 01, and Varying ( ? ) ratio. Table 2. Nondimensional Flexibilities (aEv ) for Cylindrical Sections (8 = 0) with Varying ( ? ) and (?-) Ratios. Table 3. Nondimensional Flexibilities (bEr = oEr ) for Cylindrical...

  1. Confidential and Privileged: The President's Foreign Intelligence Advisory Board - Learning Lessons from Its Past to Shape Its Future†

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    central role in advising the president and the intelligence community on crucial issues of substance or procedure and has made a significant contribution to the countryís national security. In other instances, the Board has been ignored and treated... Library Archives (Thomas J. Killian Papers), National Security Archives (George Washington University), and Boston University (Leo Cherne Papers) and found much additional material relating to the Boardís activities. Finally, former PFIAB members have...

  2. Off-shell supersymmetry and filtered Clifford supermodules

    E-Print Network [OSTI]

    Charles F. Doran; Michael G. Faux; S. James Gates, Jr.; Tristan Hubsch; Kevin M. Iga; Gregory D. Landweber

    2006-03-05T23:59:59.000Z

    An off-shell representation of supersymmetry is a representation of the super Poincare algebra on a dynamically unconstrained space of fields. We describe such representations formally, in terms of the fields and their spacetime derivatives, and we interpret the physical concept of engineering dimension as an integral grading. We prove that formal graded off-shell representations of one-dimensional N-extended supersymmetry, i.e., the super Poincare algebra p^{1|N}, correspond to filtered Clifford supermodules over Cl(N). We also prove that formal graded off-shell representations of two-dimensional (p,q)-supersymmetry, i.e., the super Poincare algebra p^{1,1|p,q}, correspond to bifiltered Clifford supermodules over Cl(p+q). Our primary tools are the formal deformations of filtered superalgebras and supermodules, which give a one-to-one correspondence between filtered spaces and graded spaces with even degree-shifting injections. This generalizes the machinery developed by Gerstenhaber to prove that every filtered algebra is a deformation of its associated graded algebra. Our treatment extends Gerstenhaber's discussion to the case of filtrations which are compatible with a supersymmetric structure, as well as to filtered modules in addition to filtered algebras. We also describe the analogous constructions for bifiltrations and bigradings.

  3. Local and Global Casimir Energies for a Semitransparent Cylindrical Shell

    E-Print Network [OSTI]

    Ines Cavero-Pelaez; Kimball A. Milton; Klaus Kirsten

    2006-09-07T23:59:59.000Z

    The local Casimir energy density and the global Casimir energy for a massless scalar field associated with a $\\lambda\\delta$-function potential in a 3+1 dimensional circular cylindrical geometry are considered. The global energy is examined for both weak and strong coupling, the latter being the well-studied Dirichlet cylinder case. For weak-coupling,through $\\mathcal{O}(\\lambda^2)$, the total energy is shown to vanish by both analytic and numerical arguments, based both on Green's-function and zeta-function techniques. Divergences occurring in the calculation are shown to be absorbable by renormalization of physical parameters of the model. The global energy may be obtained by integrating the local energy density only when the latter is supplemented by an energy term residing precisely on the surface of the cylinder. The latter is identified as the integrated local energy density of the cylindrical shell when the latter is physically expanded to have finite thickness. Inside and outside the delta-function shell, the local energy density diverges as the surface of the shell is approached; the divergence is weakest when the conformal stress tensor is used to define the energy density. A real global divergence first occurs in $\\mathcal{O}(\\lambda^3)$, as anticipated, but the proof is supplied here for the first time; this divergence is entirely associated with the surface energy, and does {\\em not} reflect divergences in the local energy density as the surface is approached.

  4. Pair of null gravitating shells I. Space of solutions and its symmetries

    E-Print Network [OSTI]

    P. Hajicek; I. Kouletsis

    2001-12-22T23:59:59.000Z

    The dynamical system constituted by two spherically symmetric thin shells and their own gravitational field is studied. The shells can be distinguished from each other, and they can intersect. At each intersection, they exchange energy on the Dray, 't Hooft and Redmount formula. There are bound states: if the shells intersect, one, or both, external shells can be bound in the field of internal shells. The space of all solutions to classical dynamical equations has six components; each has the trivial topology but a non trivial boundary. Points within each component are labeled by four parameters. Three of the parameters determine the geometry of the corresponding solution spacetime and shell trajectories and the fourth describes the position of the system with respect to an observer frame. An account of symmetries associated with spacetime diffeomorphisms is given. The group is generated by an infinitesimal time shift, an infinitesimal dilatation and a time reversal.

  5. Axial strain in GaAs/InAs core-shell nanowires

    SciTech Connect (OSTI)

    Biermanns, Andreas; Pietsch, Ullrich [Universitaet Siegen, Festkoerperphysik, 57068 Siegen (Germany)] [Universitaet Siegen, Festkoerperphysik, 57068 Siegen (Germany); Rieger, Torsten; Gruetzmacher, Detlev; Ion Lepsa, Mihail [Peter Gruenberg Institute (PGI-9), Forschungszentrum, 52425 Juelich (Germany) [Peter Gruenberg Institute (PGI-9), Forschungszentrum, 52425 Juelich (Germany); JARA-Fundamentals of Future Information Technology, 52425 Juelich (Germany); Bussone, Genziana [Universitaet Siegen, Festkoerperphysik, 57068 Siegen (Germany) [Universitaet Siegen, Festkoerperphysik, 57068 Siegen (Germany); ESRF, 6 rue Jules Horowitz, BP220, F-38043 Grenoble Cedex (France)

    2013-01-28T23:59:59.000Z

    We study the axial strain relaxation in GaAs/InAs core-shell nanowire heterostructures grown by molecular beam epitaxy. Besides a gradual strain relaxation of the shell material, we find a significant strain in the GaAs core, increasing with shell thickness. This strain is explained by a saturation of the dislocation density at the core-shell interface. Independent measurements of core and shell lattice parameters by x-ray diffraction reveal a relaxation of 93% in a 35 nm thick InAs shell surrounding cores of 80 nm diameter. The compressive strain of -0.5% compared to bulk InAs is accompanied by a tensile strain up to 0.9% in the GaAs core.

  6. The Effect of Negative-Energy Shells on the Schwarzschild Black Hole

    E-Print Network [OSTI]

    Jeffrey S Hazboun; Tevian Dray

    2009-07-03T23:59:59.000Z

    We construct Penrose diagrams for Schwarzschild spacetimes joined by massless shells of matter, in the process correcting minor flaws in the similar diagrams drawn by Dray and 't Hooft, and confirming their result that such shells generate a horizon shift. We then consider shells with negative energy density, showing that the horizon shift in this case allows for travel between the heretofore causally separated exterior regions of the Schwarzschild geometry. These drawing techniques are then used to investigate the properties of successive shells, joining multiple Schwarzschild regions. Again, the presence of negative-energy shells leads to a causal connection between the exterior regions, even in (some) cases with two successive shells of equal but opposite total energy.

  7. Dynamics of a thin shell in the Reissner-Nordstrom metric

    E-Print Network [OSTI]

    V. I. Dokuchaev; S. V. Chernov

    2010-02-24T23:59:59.000Z

    We describe the dynamics of a thin spherically symmetric gravitating shell in the Reissner-Nordstrom metric of the electrically charged black hole. The energy-momentum tensor of electrically neutral shell is modelled by the perfect fluid with a polytropic equation of state. The motion of a shell is described fully analytically in the particular case of the dust equation of state. We construct the Carter-Penrose diagrams for the global geometry of the eternal black hole, which illustrate all possible types of solutions for moving shell. It is shown that for some specific range of initial parameters there are possible the stable oscillating motion of the shell transferring it consecutively in infinite series of internal universes. We demonstrate also that this oscillating type of motion is possible for an arbitrary polytropic equation of state on the shell.

  8. Screening of the Reissner-NordstrŲm charge by a thin-shell of dust matter

    E-Print Network [OSTI]

    S. Habib Mazharimousavi; M. Halilsoy

    2015-03-17T23:59:59.000Z

    A concentric thin-shell encircling a Reissner-Nordstr\\"om (RN) black hole screens the internal charge completely to match with an external Schwarzschild (S) black hole. The negative mass thin-shell is shown to be stable against radial perturbations. It is shown further that by reversing the roles of inside (RN) and outside (S) geometries the mass of the appropriate shell becomes positive.

  9. Off-shell scattering amplitudes in the double-logarithmic approximation

    E-Print Network [OSTI]

    B. I. Ermolaev; M. Greco; F. Olness; S. I. Troyan

    2005-06-29T23:59:59.000Z

    When scattering amplitudes are calculated in the double-logarithmic approximation, it is possible to relate the double-logarithmic on-shell and off-shell amplitudes. Explicit relations are obtained for scattering amplitudes in QED, QCD, and the ElectroWeak Standard Model. The off-shell amplitudes are considered in the hard and the Regge kinematic limits. We compare our results in both the Feynman and Coulomb gauges.

  10. Screening of the Reissner-Nordstr\\"om charge by a thin-shell of dust matter

    E-Print Network [OSTI]

    Mazharimousavi, S Habib

    2015-01-01T23:59:59.000Z

    A concentric thin-shell encircling a Reissner-Nordstr\\"om (RN) black hole screens the internal charge completely to match with an external Schwarzschild (S) black hole. The negative mass thin-shell is shown to be stable against radial perturbations. It is shown further that by reversing the roles of inside (RN) and outside (S) geometries the mass of the appropriate shell becomes positive.

  11. Introduction of biotin or folic acid into polypyrrole magnetite core-shell nanoparticles

    SciTech Connect (OSTI)

    Nan, Alexandrina; Turcu, Rodica [National Institute of Research and Development for Isotopic and Molecular Technologies, Donath 65-103, Cluj-Napoca (Romania)] [National Institute of Research and Development for Isotopic and Molecular Technologies, Donath 65-103, Cluj-Napoca (Romania); Liebscher, JŁrgen [National Institute of Research and Development for Isotopic and Molecular Technologies, Donath 65-103, Cluj-Napoca, Romania and Institute of Chemistry, Humboldt-University Berlin, Brook-Taylor 2, D-12489 Berlin (Germany)] [National Institute of Research and Development for Isotopic and Molecular Technologies, Donath 65-103, Cluj-Napoca, Romania and Institute of Chemistry, Humboldt-University Berlin, Brook-Taylor 2, D-12489 Berlin (Germany)

    2013-11-13T23:59:59.000Z

    In order to contribute to the trend in contemporary research to develop magnetic core shell nanoparticles with better properties (reduced toxicity, high colloidal and chemical stability, wide scope of application) in straightforward and reproducible methods new core shell magnetic nanoparticles were developed based on polypyrrole shells functionalized with biotin and folic acid. Magnetite nanoparticles stabilized by sebacic acid were used as magnetic cores. The morphology of magnetite was determined by transmission electron microscopy TEM, while the chemical structure investigated by FT-IR.

  12. Thin-shell wormholes from black holes with dilaton and monopole fields

    E-Print Network [OSTI]

    F. Rahaman; A. Banerjee

    2011-09-08T23:59:59.000Z

    We provide a new type of thin-shell wormhole from the black holes with dilaton and monopole fields. The dilaton and monopole that built the black holes may supply fuel to construct the wormholes. Several characteristics of this thin-shell wormhole have been discussed. Finally, we discuss the stability of the thin-shell wormholes with a "phantom-like" equation of state for the exotic matter at the throat.

  13. FABRICATION AND PROPERTIES OF OER COATED RESORCINOL-FORMALDEHYDE SHELLS FOR OMEGA EXPERIMENTS

    SciTech Connect (OSTI)

    NIKROO,A; CZECHOWICZ,D; PAGUIO,R; GREENWOOD,A.L; TAKAGI,M

    2003-06-01T23:59:59.000Z

    OAK-B135 New high gain designs for direct drive ignition on NIF require foam shells. Scaled down versions of these designs are needed for near term experiments on the OMEGA laser facility at the Laboratory Laser Energetics (LLE). These shells need to be about 1 mm in diameter and 50-100 {micro}m wall thickness and densities of 100-250 mg/cc. In addition, a full density permeation seal needs to be deposited for retention of the fill gas at room temperature or the ice at cryogenic temperatures. They have fabricated such shells using Resorcinol-formaldehyde (R/F) as the selected foam material due to its transparency in the optical region. Extensive characterization of the wall uniformity of these shells has been performed. The foam shells have {approx} 5%-6% non-concentricities on the average. A full density permeation seal has been deposited on the R/F shells using two different techniques. In the first technique R/F shells are coated directly with plasma polymer to thicknesses of 3-4 {micro}m. In the second technique, R/F shells are coated with polyvinylphenol, using a chemical interfacial polymerization technique. Data on surface finish and gas retention for R/F shells coated by both methods are provided.

  14. Size-Dependent Specific Surface Area of Nanoporous Film Assembled by Core-Shell Iron Nanoclusters

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

    Antony, Jiji; Nutting, Joseph; Baer, Donald R.; Meyer, Daniel; Sharma, Amit; Qiang, You

    2006-01-01T23:59:59.000Z

    Nanoporous films of core-shell iron nanoclusters have improved possibilities for remediation, chemical reactivity rate, and environmentally favorable reaction pathways. Conventional methods often have difficulties to yield stable monodispersed core-shell nanoparticles. We produced core-shell nanoclusters by a cluster source that utilizes combination of Fe target sputtering along with gas aggregations in an inert atmosphere at7?C. Sizes of core-shell iron-iron oxide nanoclusters are observed with transmission electron microscopy (TEM). The specific surface areas of the porous films obtained from Brunauer-Emmett-Teller (BET) process are size-dependent and compared with the calculated data.

  15. Navier-Stokes equations interacting with a nonlinear elastic fluid shell

    E-Print Network [OSTI]

    C. H. Arthur Cheng; Daniel Coutand; Steve Shkoller

    2006-11-22T23:59:59.000Z

    We study a moving boundary value problem consisting of a viscous incompressible fluid moving and interacting with a nonlinear elastic fluid shell. The fluid motion is governed by the Navier-Stokes equations, while the fluid shell is modeled by a bending energy which extremizes the Willmore functional and a membrane energy that extremizes the surface area of the shell. The fluid flow and shell deformation are coupled together by continuity of displacements and tractions (stresses) along the moving material interface. We prove existence and uniqueness of solutions in Sobolev spaces.

  16. Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells

    DOE Patents [OSTI]

    Steinman, D.A.

    1980-05-30T23:59:59.000Z

    Method and apparatus for determining diameter and wall thickness of hollow microspheres or shells wherein terminal velocities of shells traveling in fluid-filled conduits of differing diameters are measured. A wall-effect factor is determined as a ratio of the terminal velocities, and shell outside diameter may then be ascertained as a predetermined empirical function of wall-effect factor. For shells of known outside diameter, wall thickness may then be ascertained as a predetermined empirical function of terminal velocity in either conduit.

  17. Precise estimation of shell model energy by second order extrapolation method

    E-Print Network [OSTI]

    Takahiro Mizusaki; Masatoshi Imada

    2003-02-20T23:59:59.000Z

    A second order extrapolation method is presented for shell model calculations, where shell model energies of truncated spaces are well described as a function of energy variance by quadratic curves and exact shell model energies can be obtained by the extrapolation. This new extrapolation can give more precise energy than those of first order extrapolation method. It is also clarified that first order extrapolation gives a lower limit of shell model energy. In addition to the energy, we derive the second order extrapolation formula for expectation values of other observables.

  18. E-Print Network 3.0 - arsenide-zinc selenide core-shell Sample...

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

    as 3D Scaffolds for New Materials: from Mechanically Strong Polymer Crosslinked Aerogels Summary: . Those 3D core-shell superstructures are true multifunctional materials...

  19. Shell Gas to Liquids in the context of a Future Fuel Strategy...

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

    * Bulky on-board storage * Shell companies assess locally whether to supply (eg. Argentina) LPG * Lower sulphur, PM, NOx and SOx * Overall emissions similar to CNG *...

  20. Fifteenth international conference on X-ray and inner-shell processes

    SciTech Connect (OSTI)

    Not Available

    1990-01-01T23:59:59.000Z

    This document is composed of Abstracts from invited papers presented at X-90, the fifteenth annual international conference on x-ray and Inner-Shell Processes. (FSD)