Sample records for aff phase offici

  1. Official Foreign Travel

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2008-06-24T23:59:59.000Z

    The Order sets forth requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1B.

  2. Official Foreign Travel

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2012-04-12T23:59:59.000Z

    The order establishes requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1C.

  3. Official Foreign Travel

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2000-08-25T23:59:59.000Z

    To establish Department of Energy (DOE) and National Nuclear Security Administration (NNSA) requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1. Canceled by DOE O 551.1B.

  4. Official Foreign Travel

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2003-08-19T23:59:59.000Z

    To establish Department of Energy (DOE) and National Nuclear Security Administration (NNSA) requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1A. Canceled by DOE O 551.1C.

  5. Official Foreign Travel

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2000-01-31T23:59:59.000Z

    Establishes Department of Energy (DOE) requirements and responsibilities governing official foreign travel by Federal and contract employees. Cancels DOE O 1500.3. Canceled by DOE O 551.1A.

  6. Official Foreign Travel

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2002-11-08T23:59:59.000Z

    To establish Department of Energy (DOE) and National Nuclear Security Administration (NNSA) requirements and responsibilities governing official foreign travel by Federal and contractor employees. The Page Change 1 to the CRD issued 11-8-02, will expand the requirements for country clearance for contractors to include all official foreign travel, including travel to nonsensitive countries. Cancels DOE O 551.1. Canceled by DOE O 551.1B.

  7. TQP Qualifying Official Training Approaches - Livermore Site...

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

    TQP Qualifying Official Training Approaches - Livermore Site Office TQP Qualifying Official Training Approaches - Livermore Site Office A QO is an individual who has the technical...

  8. Templeman Library Official publication loan

    E-Print Network [OSTI]

    Banaji,. Murad

    Templeman Library Official publication loan Use this form to borrow items from the British ............................................................................ * Initials ............................................................................ * Library card number ............................................................................ Fields marked * are required The item will be issued to your Library account as an Ordinary Loan item

  9. Code of Official Conduct Student Government Association

    E-Print Network [OSTI]

    Long, Nicholas

    Code of Official Conduct Student Government Association Stephen F. Austin State University Section, the Student Government Association of Stephen F. Austin State University has adopted this Code of Official Association officials who may be elected, appointed, or employed comply with both the Letter and the Spirit

  10. Hydrogeology Journal Official Journal of the International

    E-Print Network [OSTI]

    Gvirtzman, Haim

    -edge methods for determining fault characteristics have been widely applied for oil and gas reservoir1 23 Hydrogeology Journal Official Journal of the International Association of Hydrogeologists ISSN

  11. Guide to Identifying Official Use Only Information

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2003-04-09T23:59:59.000Z

    This Guide supplements information contained in Department of Energy (DOE) O 471.3, Identifying and Protecting Official Use Only Information, dated 4-9-03, and DOE M 471.3-1, Manual for Identifying and Protecting Official Use Only Information, dated 4-9-03.

  12. Development of Hydrogen Education Programs for Government Officials...

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

    Hydrogen Education Programs for Government Officials Development of Hydrogen Education Programs for Government Officials 2009 DOE Hydrogen Program and Vehicle Technologies Program...

  13. Undersecretary for Nuclear Security, NNSA and EM Officials to...

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

    Undersecretary for Nuclear Security, NNSA and EM Officials to Discuss President Obama's FY 2013 Budget Request Undersecretary for Nuclear Security, NNSA and EM Officials to Discuss...

  14. 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,...

  15. State and Local Code Implementation: State Energy Officials ...

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

    State Energy Officials - 2014 BTO Peer Review State and Local Code Implementation: State Energy Officials - 2014 BTO Peer Review Presenter: Chris Wagner, National Association of...

  16. Energy Department, Oak Ridge National Lab Officials to Celebrate...

    Office of Environmental Management (EM)

    Department, Oak Ridge National Lab Officials to Celebrate First of its Kind Carbon Fiber Facility Energy Department, Oak Ridge National Lab Officials to Celebrate First of its Kind...

  17. Identifying and Protecting Official Use Only Information

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2003-04-09T23:59:59.000Z

    To establish a program within the Department of Energy (DOE), including the National Nuclear Security Administration (NNSA), to identify certain unclassified controlled information as Official Use Only (OUO) and to identify, mark, and protect documents containing such information.

  18. A Better Handoff for Code Officials

    SciTech Connect (OSTI)

    Conover, David R.; Yerkes, Sara

    2010-09-24T23:59:59.000Z

    The U.S. Department of Energy's Building Energy Codes Program has partnered with ICC to release the new Building Energy Codes Resource Guide: Code Officials Edition. We created this binder of practical materials for a simple reason: code officials are busy learning and enforcing several codes at once for the diverse buildings across their jurisdictions. This doesn’t leave much time to search www.energycodes.gov, www.iccsafe.org, or the range of other helpful web-based resources for the latest energy codes tools, support, and information. So, we decided to bring the most relevant materials to code officials in a way that works best with their daily routine, and point to where they can find even more. Like a coach’s game plan, the Resource Guide is an "energy playbook" for code officials.

  19. The key role of local elected officials

    SciTech Connect (OSTI)

    Edwards, K. [Village of Newburgh Heights, OH (United States); Koh, B. [B. Koh, B.Koh & Associates, Inc., Owings Mills, MD (United States)

    1996-12-31T23:59:59.000Z

    Many factions have a stake in the cleanup of radioactively contaminated properties. Often, the interests of these groups conflict, and the ensuing controversy leads to long delays in the decommissioning. The authors were deeply involved in one such project. Their experience revealed that local elected officials are in the best position to take a leadership role among the parties. Elected officials can use the authority of their office to represent the affected constituents and get action from regulators, legislators and the parties responsible for the cleanup.

  20. Officials launch Carbon Fiber Technology Facility, announce

    E-Print Network [OSTI]

    Pennycook, Steve

    to reduce carbon fiber's high cost, Danielson noted: "Many of these new clean energy technologies are withinSCIENCE Officials launch Carbon Fiber Technology Facility, announce new manufacturing initiative and a large crowd of local business and civic leaders came to the Carbon Fiber Technology Facility (CFTF

  1. Identifying and Protecting Official Use Only Information

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2003-04-09T23:59:59.000Z

    The order establishes a program within DOE and NNSA to identify certain unclassified controlled information as Official Use Only (OUO) and to identify, mark, and protect documents containing such information. Chg 1 dated 1-12-11, cancels DOE O 471.3.

  2. Statement by Energy Secretary Steven Chu on Today's Official...

    Office of Environmental Management (EM)

    Today's Official Launch of FedEx Freight's Fuel Cell Lift Truck Fleet in Springfield, Missouri Statement by Energy Secretary Steven Chu on Today's Official Launch of FedEx...

  3. Senior DOE Officials in Spain to Participate in World Petroleum...

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

    Senior DOE Officials in Spain to Participate in World Petroleum Congress, July 1, 2008 Senior DOE Officials in Spain to Participate in World Petroleum Congress, July 1, 2008 Senior...

  4. PERMITTING OF A PROJECT INVOLVING HYDROGEN: A CODE OFFICIAL’S PERSPECTIVE

    SciTech Connect (OSTI)

    Kallman, Richard A.; Barilo, Nick F.; Murphy, W. F.

    2012-05-11T23:59:59.000Z

    Recent growth in the development of hydrogen infrastructure has led to more requests for code officials to approve hydrogen-related projects and facilities. To help expedite the review and approval process, significant efforts have been made to educate code officials on permitting hydrogen vehicle fueling stations and facilities using stationary fuel cells (e.g., backup power for telephone cell tower sites). Despite these efforts, project delays continue because of several factors, including the limited experience of code officials with these types of facilities, submittals that lack the required information (including failure to adequately address local requirements), and submission of poor quality documents. The purpose of this paper is to help project proponents overcome these potential roadblocks and obtain timely approval for a project. A case study of an actual stationary application permitting request is provided to illustrate the value of addressing these issues.

  5. Mexican American city officials in Texas

    E-Print Network [OSTI]

    Arriaga, Adrian Aron

    1973-01-01T23:59:59.000Z

    Science MEXICAN AMERICAN CITY OFFICIALS IN TEXAS A Thesis by ADRIAN ARON ARRIAGA Approved as to style and content by: Chairman of Committee Mem r Member August 1973 ABSTRACT Nex1can Amer1can City Offic1als 1n Texas. (August 1973) Adrian Aron.... 35 As Nex1can American veterans returned home, new ambitions started to form. The G. I. Bill provided needed educa- tion for Mexican Amer1cans who took the opportunity. 36 New self- confidence led Mexican Americans to establish a number of impor...

  6. Determinants of official OPEC crude prices

    SciTech Connect (OSTI)

    Verleger, P.K. Jr.

    1982-05-01T23:59:59.000Z

    The hypothesis of this paper is that crude oil, like any other unfinished commodity, is valued for the products derived from it; the purpose is to offer an empirical explanation for changes in the crude price charged by the members of OPEC. The model results show that the market-clearing prices reported to prevail for petroleum products on the principal petroleum spot market at Rotterdam are the primary determinants of changes in official crude prices. A systematic relationship between offical and spot prices is argued to have prevailed since 1974. An appendix clarifies five types of data required for the model. 13 references, 4 tables.

  7. Official Use Only Information | Department of Energy

    Office of Environmental Management (EM)

    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 1,006 492 742 33 111 1,613 122Commercial602 1,39732onMake YourDepartment ofCDepartmentthe Chief HumanOfficial Use

  8. Topology of Local Health Officials' Advice Networks: Mind the Gaps

    E-Print Network [OSTI]

    Sadeh, Norman M.

    , evidence-based programs, and service delivery, and health care reform are innovations Author AffiliationsTopology of Local Health Officials' Advice Networks: Mind the Gaps Jacqueline Merrill, RN, MPH: To determine how a health officials' advice network might contribute to a high-performing public health systems

  9. 10:30AM TODAY: Senior Administration Officials to Hold a Background...

    Office of Environmental Management (EM)

    TODAY: Senior Administration Officials to Hold a Background Conference Call Regarding Oil 10:30AM TODAY: Senior Administration Officials to Hold a Background Conference Call...

  10. Manual for Identifying and Protecting Official Use Only Information

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2003-04-09T23:59:59.000Z

    This Department of Energy (DOE) Manual provides detailed requirements to supplement DOE O 471.3, Identifying and Protecting Official Use Only Information, dated 4-9-03. Admin Chg dated 1-13-11.

  11. 25 years ago: the official farewell to the meter

    E-Print Network [OSTI]

    Thomas Schucker

    2008-10-20T23:59:59.000Z

    On october 21st 1983 took place in S\\`evres on the western outskirts of Paris the official funeral of the meter. With it the notion of distance as a physical observable was buried.

  12. Human Resources Department Procedure: Personnel File Official Custodian and

    E-Print Network [OSTI]

    these individuals is: Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401. The maintenance., the Colorado School of Mines has designated the following official custodians: Director of Human Resources, depending on the availability of staff to assist the requesting individual, access may not be available

  13. Official Traditions Manual of the Saskatoon Engineering Students' Society Inc

    E-Print Network [OSTI]

    Saskatchewan, University of

    or representatives of the Agriculture/Bioresource Engineering Students' Society, Chemical Engineering StudentsOfficial Traditions Manual of the Saskatoon Engineering Students' Society Inc Article I Definitions hereafter refer to "the Saskatoon Engineering Students' Society"; (c) "SESS" and "S.E.S.S." shall

  14. OFFICIAL SENSITIVE STFC(2014)51 Page 1 of 13

    E-Print Network [OSTI]

    Crowther, Paul

    2014-01-01T23:59:59.000Z

    to the challenges of hydrogen fuel storage and cost, using ammonia as a clean and secure hydrogen-containing energy transfer has taken place, the UK will be a 10.5% Shareholder for the ESRF. 4.3 Hydrogen as a "green" fuel source to produce hydrogen on demand in- #12;OFFICIAL SENSITIVE STFC(2014)51 Page 3 of 13 situ

  15. Library Guide 2012 Official mascots of the Library

    E-Print Network [OSTI]

    Ejiri, Shinji

    Library Guide 2012 255 70% Official mascots of the Library Tulip-san Gama-jumper It is really a waste to graduate without using the library even once. Actually, library is the place where you may have time to spare from learning, lectures, and club activities etc. You can use the library

  16. 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

  17. Policy V. 7.7.1 Responsible Official: Vice

    E-Print Network [OSTI]

    Foote, Richard M.

    Policy V. 7.7.1 Responsible Official: Vice President for Human Resources, Diversity and Multicultural Affairs Effective Date: October 26, 2009 Nursing Mothers in the Workplace Policy Statement this policy to support the health and well-being of employees and their infant children by providing

  18. Top U.S. Nuclear Official Commends Industry for Submitting 3rd...

    Energy Savers [EERE]

    Top U.S. Nuclear Official Commends Industry for Submitting 3rd Combined Construction & Operating License Application to the NRC Top U.S. Nuclear Official Commends Industry for...

  19. OASIS and Official Communication Channel Procedures Commencement Date: 31 October, 2003

    E-Print Network [OSTI]

    OASIS and Official Communication Channel Procedures Commencement Date: 31 October, 2003 Category that is stored electronically by the University. OASIS Is an acronym for Online Access to Student Information and is the means by which official correspondence is delivered electronically to students within OASIS. Official

  20. Voting Systems and Election Reform: What Do Election Officials Think?

    E-Print Network [OSTI]

    Gray, Jennifer; Gray, Marshall; Hodges, Joshua; Jewell, Jeff; Larson, Marcia; Mitchell, Ryan; Murello, Erin; Murello, Steve; Reeves, Alice; Siddique, Julie

    2005-01-01T23:59:59.000Z

    - Election Officials and Voting Systems 53 Chapter Five: The Role of Vendors 57 Chapter Six: The Decision Making Process 69 Chapter Seven: The Help America Vote Act 81 Chapter Eight: Direct Recording Electronic and Optical... likely to be adopted by current punch card users Chapter Five: The Role of Vendors Table 5.1: Mean values of vendor characteristics by level of importance Table 5.2: Interaction with current voting system vendor Chapter Six: The Decision Making...

  1. If there is a discrepancy between this document and the official Plan Document the official Plan Document(s) will govern. Massachusetts Institute of Technology

    E-Print Network [OSTI]

    Reuter, Martin

    If there is a discrepancy between this document and the official Plan Document the official Plan Document(s) will govern. 1/01/2014 Massachusetts Institute of Technology Summary of 2014 Benefits to manage their healthcare. "In-network" benefits are also provided for employees and their dependents who

  2. EM Official Keeps History Rolling | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisory Board Contributions EM HighlightsSeptember 11,July 29,EM Official

  3. OFFICIAL USE ONLY National Nuclear Security Administration Fact Sheet

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in ManyDepartment of Order No. EA-212-AOAHU2014) |OFFICIAL USE ONLY

  4. Official Use Only Stamp with Directions | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in ManyDepartment of OrderSUBCOMMITTEEEnergy0 9Issue 15IssueOfficial

  5. Microsoft Word - Appendix F_OfficialContactList.doc

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling CorpNewCF Official Contact List U.S. Department

  6. FOR OFFICIAL USE ONLY KIRTLAND AFB PASS REQUEST SPONSOR'S INFORMATION

    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 Science (SC) Environmental Assessments (EA) /EmailMolecularGE,OzoneContacts FOIAHow toOFFICIAL USE

  7. Official Use Only and Sensitive Document Destruction Procedure | The Ames

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeeding accessSpeedingOctober 1996ServicesLaboratoryOfficial Use

  8. In Charlotte, Senior DOE Official to Amplify State of the Union...

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

    News Media Contact (202) 586-4940 WASHINGTON - On Thursday, February 6, Assistant Secretary for Energy Efficiency and Renewable Energy Dr. David Danielson will join officials from...

  9. Official List of SC User Facilities | U.S. DOE Office of Science...

    Office of Science (SC) Website

    Policies and Processes Definition Official List of SC User Facilities Designation Process User Statistics Collection Practices Science Highlights Frequently Asked Questions...

  10. Listing of Official University Service Centers -Requiring 1244R Account Code

    E-Print Network [OSTI]

    Buehrer, R. Michael

    Listing of Official University Service Centers - Requiring 1244R Account Code HokieMart Vendor VT Analysis VT Soil Testing Lab Fertility Analysis for Research Page 1 of 2 #12;Listing of Official University Service Centers - Requiring 1244R Account Code VT Stability Wind Tunnel VT Virginia Cooperative Extension

  11. 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

  12. State and spaces of official labour statistics in the Federal Republic of Germany, c.1950-1973 

    E-Print Network [OSTI]

    Mayer, Jochen

    2012-11-29T23:59:59.000Z

    This PhD examines the historical making and interpretation of West-German official labour statistics in the period 1950-1973: how did official statistics come to be inscribed in state and administrative attempts to ...

  13. DOE Hosts German Energy Official, Signs MOU to Share WIPP Information

    Broader source: Energy.gov [DOE]

    CARLSBAD, N.M. – A high-ranking energy official from Germany formalized a partnership between her country and the United States during a recent visit to the Waste Isolation Pilot Plant (WIPP).

  14. Information, The Internet, Elected Officials,and Local Government Decision Making

    E-Print Network [OSTI]

    Danziger, Jim N; Dunkle, Debbie

    2008-01-01T23:59:59.000Z

    and medium-sized (42%) cities. Smart phones are much moresized cities report not having a computer, PDA or smartlarge city elected officials is a desktop, laptop and smart

  15. International regulation of official trade finance : competition and collusion in export credits and foreign aid

    E-Print Network [OSTI]

    Evans, Peter C

    2005-01-01T23:59:59.000Z

    Advanced industrial countries provide over $120 billion annually on various terms and conditions to support exports and investments abroad. The regime governing these official trade finance (OTF) flows has puzzling features. ...

  16. Senior U.S. Energy Department Official to Tour Daikin McQuay...

    Office of Environmental Management (EM)

    Senior U.S. Energy Department Official to Tour Daikin McQuay Manufacturing Facility in Plymouth, Minn., Visit Rochester IBEW Wind Turbine Training Facility Senior U.S. Energy...

  17. Critical materials research needed to secure U.S. manufacturing, officials say

    Broader source: Energy.gov [DOE]

    Energy Department officials said yesterday that developing alternatives to critical materials, like rare earth metals used in solar panels and wind turbines, is crucial to American manufacturing stability and can help the United States circumvent global market pressures.

  18. NOvA (Fermilab E929) Official Plots and Figures

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The NOvA collaboration, consisting of 180 researchers across 28 institutions and managed by the Fermi National Accelerator Laboratory (FNAL), is developing instruments for a neutrino-focused experiment that will attempt to answer three fundamental questions in neutrino physics: 1) Can we observe the oscillation of muon neutrinos to electron neutrinos; 2) What is the ordering of the neutrino masses; and 3) What is the symmetry between matter and antimatter? The collaboration makes various data plots and figures available. These are grouped under five headings, with brief descriptions included for each individual figure: Neutrino Spectra, Detector Overview, Theta12 Mass Hierarchy CP phase, Theta 23 Delta Msqr23, and NuSterile.

  19. NON-DISCRIMINATION AND ANTI-HARASSMENT POLICY OFFICIAL POLICY STATEMENTS

    E-Print Network [OSTI]

    Arnold, Jonathan

    1 NON-DISCRIMINATION AND ANTI-HARASSMENT POLICY OFFICIAL POLICY STATEMENTS SEXUAL, Board of Regents' policy, and University policy, the University prohibits any member of the faculty-DISCRIMINATION AND EQUAL OPPORTUNITY Consistent with federal and state law and University policy, the University of Georgia

  20. Research Brief The Commonwealth's Official Source for Population and Economic Statistics

    E-Print Network [OSTI]

    Guiltinan, Mark

    Research Brief The Commonwealth's Official Source for Population and Economic Statistics December 8 demographic and socio-economic data for every community in the United States, including all counties for Pennsylvania counties and municipalities. In Pennsylvania, new detailed socio-economic data was released

  1. Better Technologies Key to Addressing Climate Change Energy Department official explains U.S. initiatives

    E-Print Network [OSTI]

    Better Technologies Key to Addressing Climate Change Energy Department official explains U.S. initiatives 17 December 2004 More energy-efficient technologies will be key to reducing greenhouse gas portfolio of technology options that can provide abundant energy to power economic development and still

  2. Energy Information Administration Official Energy Statistics from the U.S. Government

    E-Print Network [OSTI]

    and Commercial Electric Power Petroleum-based liquids consumption is projected to be flat as biofuels use growsEnergy Information Administration Official Energy Statistics from the U.S. Government Annual Energy projected growth in energy consumption and emissions #12;3EIA Annual Energy Outlook 2009 Reference Case

  3. COLLEGE SCHOLARS MENTOR AGREEMENT Before being officially accepted to the program, you must identify a

    E-Print Network [OSTI]

    Wang, Xiaorui "Ray"

    FORM M COLLEGE SCHOLARS MENTOR AGREEMENT Before being officially accepted to the program, you must identify a faculty member who agrees to serve as your mentor in the program. If at any time you change mentors, you must fill out this form again. Listed below is a description of the role of the College

  4. The official version of this document will only be maintained online. CHEMICAL HYGIENE PLAN

    E-Print Network [OSTI]

    Ginzel, Matthew

    The official version of this document will only be maintained online. CHEMICAL HYGIENE PLAN be maintained online. PURDUE UNIVERSITY Chemical Hygiene Plan and Hazardous Materials Safety Manual Laboratory Specific Plan This is the Chemical Hygiene Plan specific to the following areas: Building(s): Room Number

  5. OFFICIAL POLICY 0.000 Chemical Hygiene Plan 03/01/10

    E-Print Network [OSTI]

    Kasman, Alex

    OFFICIAL POLICY 0.000 Chemical Hygiene Plan 03/01/10 Policy Statement It is the policy/01/2010 Next Review: Month/Date/Year 04/01/2011 #12;CHEMICAL HYGIENE PLAN March 1, 2010 #12;CHEMICAL HYGIENE OF CHARLESTON CHEMICAL HYGIENE PLAN AWARENESS CERTIFICATION The Occupational Safety and Health Administration

  6. Static growth in obesity rates among kids no reason to celebrate, health officials say

    E-Print Network [OSTI]

    Belogay, Eugene A.

    Static growth in obesity rates among kids no reason to celebrate, health officials say By SONJA, Jan. 17, 2012 The growing girth of the nation's children has taken a pause, leaving us with an obesity obesity rate) is not going down, I don't find that comforting." Few health professionals do. Nearly one

  7. OFFICIAL POLICY 6.1.3 Policy on Pets on Campus 4/22/2014

    E-Print Network [OSTI]

    Kasman, Alex

    OFFICIAL POLICY 6.1.3 Policy on Pets on Campus 4/22/2014 Policy Statement 1.0 BUILDINGS AND OFFICES, "College"), unless allowed under the terms of Section 4.0 of this Policy. 2.0 COLLEGE GROUNDS Pets are permitted on campus grounds, subject to the terms of this Policy. Pets brought on campus grounds

  8. Official Merit Promotion System and Its Impact on Climate Change Mitigation Policy in China

    E-Print Network [OSTI]

    Zhou, Pei

    on mitigating carbon emission, strengthening performance standards to control carbon standards and implementing in a long term in carbon dioxides reduction is to use its "iron hand". "Iron hand" came from Premier WenOfficial Merit Promotion System and Its Impact on Climate Change Mitigation Policy in China

  9. EM Officials Join Environmental Management Advisory Board to Celebrate 20th Anniversary

    Broader source: Energy.gov [DOE]

    IDAHO FALLS, Idaho – EM Principal Deputy Assistant Secretary Tracy Mustin joined other officials last week to mark the 20th year of the independent, volunteer advisory board that offers the Assistant Secretary for the Office of Environmental Management guidance on critical issues involved in the world’s largest nuclear cleanup.

  10. The Cost of Enforcing Building Energy Codes: Phase 1

    E-Print Network [OSTI]

    Williams, Alison

    2013-01-01T23:59:59.000Z

    practices among code officials. Stakeholders recommendboth applicants and code officials and help to inform thecomply with the code and code officials to enforce the new

  11. UCF-4.0294 Use of University Facilities; General Requirements. (1) University facilities are reserved and used primarily for the official and regular

    E-Print Network [OSTI]

    Wu, Shin-Tson

    and approved by a University building code official or safety officer. A sketch drawing of the display are reserved and used primarily for the official and regular conduct of the University's business interference and disruption, University officials will look to the standards of University Regulation UCF- 4

  12. Tri-City Herald: Japanese Officials See How Hanford Does It

    Broader source: Energy.gov [DOE]

    On opposite sides of the Pacific Ocean, similar work to clean up radioactive contamination is planned to be carried out during the next 40 years. Thursday, officials from the Tokyo Electric Power Co., the utility that operated the Fukushima, Japan, nuclear reactors, toured Hanford to see how work is being done there to clean up contamination from the past production of plutonium for the nation's nuclear weapons program.

  13. Official University Facebook page guidelines and procedures -revised January 10, 2014 UL Lafayette Facebook Page Guidelines and Procedures

    E-Print Network [OSTI]

    Kearfott, R. Baker

    Official University Facebook page guidelines and procedures - revised January 1 UL Lafayette Facebook Page Guidelines and Procedures For all UL setting up a Facebook presence for any University entity, college, department

  14. International Development Internship Program This is the official APPLICATION GUIDELINE AND FORM that must be submitted no later than

    E-Print Network [OSTI]

    Carter, John

    International Development Internship Program This is the official APPLICATION GUIDELINE must pass a conversation language test to determine your eligibility and internship placement. 5, housing, and health insurance during the internship, and air transportation. If accepted to the IDIP

  15. Data sources directory for purchasing officials: Energy-efficient and environmentally preferred products

    SciTech Connect (OSTI)

    NONE

    1995-09-01T23:59:59.000Z

    This Directory, produced by the New York State Energy Research and Development Authority, is an introduction to organizations that provide information about energy-efficient and environmentally preferred equipment and products. It is intended to be a reference tool for purchasing officials in the public and private sectors. The New York State Energy Research and Development Authority does not endorse any particular vendor, organization, or technology. This list was prepared to provide information. The companies listed may provide additional products and/or services not mentioned in this directory.

  16. 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

  17. PSACI UPDATE: (January 15, 2005) The Call for Proposals for the SciDAC FSP Proto-type Centers has now been officially

    E-Print Network [OSTI]

    now been officially posted at the web-site: http://www.sc.doe.gov/grants/FAPN05-11.html The two areas

  18. On the possible physical mechanism of Chernobyl catastrophe and the unsoundness of official conclusion

    E-Print Network [OSTI]

    A. A. Rukhadze; L. I. Urutskojev; D. V. Filippov

    2003-04-29T23:59:59.000Z

    The official conclusion about the origin and mechanism of the Chernobyl catastrophe is shown to essentially contradict experimental facts available from the accident. In the frame of existing physical models of nuclear fission reactor, it is shown analytically that under conditions of the accident the period of runaway of reactor at the fourth power generating unit of the Chernobyl Nuclear Power Plant (CNPP) should be either 10 times slower or 100 times faster than that observed. A self-consistent hypothesis is suggested for the probable birth of magnetic charges, during the turbine generator test under it's own momentum test, at the fourth power generating unit of CNPP, and for the impact of these charges on the reactivity coefficient.

  19. Alpha phase precipitation from phase-separated beta phase in...

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

    Alpha phase precipitation from phase-separated beta phase in a model Ti-Mo-Al alloy studied by direct coupling of transmission Alpha phase precipitation from phase-separated beta...

  20. OFFICIAL POLICY 10.17 / 3.2 Mobile Websites and Mobile Applications ("Apps") 08/01/12

    E-Print Network [OSTI]

    Kasman, Alex

    OFFICIAL POLICY 10.17 / 3.2 Mobile Websites and Mobile Applications ("Apps") 08/01/12 Policy Statement All existing or proposed College of Charleston mobile website and mobile application ("apps/or the Android store), must be reviewed and approved by both Information Technology and the Division of Marketing

  1. 33.99.99.M0.01 Official Personnel File Page 1 of 2 STANDARD ADMINISTRATIVE PROCEDURE

    E-Print Network [OSTI]

    will maintain personnel records for each employee in accordance with records management requirements and where directed by policy, regulation or rule. The individual employee records will consist of documents relevant of the employee include, but are not limited to, the items identified in the Official Personnel File Records

  2. Generated using version 3.0 of the official AMS LATEX template Computing and Partitioning Cloud Feedbacks using Cloud1

    E-Print Network [OSTI]

    Hartmann, Dennis

    Generated using version 3.0 of the official AMS LATEX template Computing and Partitioning Cloud Feedbacks using Cloud1 Property Histograms.2 Part II: Attribution to the Nature of Cloud Changes3 Mark D-103 Livermore, CA 94551 E-mail: zelinka1@llnl.gov 1 #12;ABSTRACT7 Cloud radiative kernels

  3. Article __ Greek Code of Standards Policy (Winter 2014) The goals of this policy are to promote Dartmouth's Official Principles of Community

    E-Print Network [OSTI]

    leadership. A. Code of Standards 1.0 Policy: The Greek Community must uphold Dartmouth's Official PrinciplesArticle __ Greek Code of Standards Policy (Winter 2014) The goals of this policy are to promote Dartmouth's Official Principles of Community and to provide prevention and response features for violations

  4. Energy-Smart Building Choices: How School Facilities Managers and Business Officials Are Reducing Operating Costs and Saving Money

    SciTech Connect (OSTI)

    Energy Smart Schools Team

    2001-08-06T23:59:59.000Z

    Most K-12 schools could save 25% of their energy costs by being smart about energy. Nationwide, the savings potential is $6 billion. While improving energy use in buildings and busses, schools are likely to create better places for teaching and learning, with better lighting, temperature control, acoustics, and air quality. This brochure, targeted to school facilities managers and business officials, describes how schools can become more energy efficient.

  5. Energy-Smart Building Choices: How School Facilities Managers and Business Officials Are Reducing Operating Costs and Saving Money (Revision)

    SciTech Connect (OSTI)

    Not Available

    2002-02-01T23:59:59.000Z

    Operating a typical school today is no easy task for facilities managers and business officials. You're expected to deliver increased services with constrained operating budgets. Many schools stay open for longer hours to accommodate community use of the facilities. Dilapidated buildings and systems gobble up energy, yet in many districts, maintenance needs are overshadowed by the need for expansion or new construction to serve growing student populations and changing educational needs.

  6. Alternative Fuel News: Official Publication of the U.S. Department of Energy's Clean Cities Network and the Alternative Fuels Data Center; Vol. 2, No. 2

    SciTech Connect (OSTI)

    Not Available

    1998-05-01T23:59:59.000Z

    Official publication of the Clean Cities Network and the Alternative Fuels Data Center featuring alternative fuels activity in every state, the Clean Cities game plan '98, and news from the Automakers.

  7. Report of Official Foreign Travel to Germany, May 16-June 1, 2001

    SciTech Connect (OSTI)

    J. D. Mason

    2001-06-18T23:59:59.000Z

    The Department of Energy (DOE) and associated agencies have moved rapidly toward electronic production, management, and dissemination of scientific and technical information. The World-Wide Web (WWW) has become a primary means of information dissemination. Electronic commerce (EC) is becoming the preferred means of procurement. DOE, like other government agencies, depends on and encourages the use of international standards in data communications. Like most government agencies, DOE has expressed a preference for openly developed standards over proprietary designs promoted as ''standards'' by vendors. In particular, there is a preference for standards developed by organizations such as the International Organization for Standardization (ISO) and the American National Standards Institute (ANSI) that use open, public processes to develop their standards. Among the most widely adopted international standards is the Standard Generalized Markup Language (SGML, ISO 8879:1986, FIPS 152), to which DOE long ago made a commitment. Besides the official commitment, which has resulted in several specialized projects, DOE makes heavy use of coding derived from SGML: Most documents on the WWW are coded in HTML (Hypertext Markup Language), which is an application of SGML. The World-Wide Web Consortium (W3C), with the backing of major software houses like Adobe, IBM, Microsoft, Netscape, Oracle, and Sun, is promoting XML (eXtensible Markup Language), a class of SGML applications, for the future of the WWW and the basis for EC. In support of DOE's use of these standards, I have served since 1985 as Chairman of the international committee responsible for SGML and related standards, ISO/IEC JTC1/SC34 (SC34) and its predecessor organizations. During my May 2001 trip, I chaired the spring 2001 meeting of SC34 in Berlin, Germany. I also attended XML Europe 2001, a major conference on the use of SGML and XML sponsored by the Graphic Communications Association (GCA), and chaired a meeting of the International SGML/XML Users' Group (ISUG). In addition to the widespread use of the WWW among DOE's plants and facilities in Oak Ridge and among DOE sites across the nation, there have been several past and present SGML- and XML-based projects at the Y-12 National Security Complex (Y-12). Our local project team has done SGML and XML development at Y-12 and Oak Ridge National Laboratory (ORNL) since the late 1980s. SGML is a component of the Weapons Records Archiving and Preservation (WRAP) project at Y-12 and is the format for catalog metadata chosen for weapons records by the Nuclear Weapons Information Group (NWIG). The ''Ferret'' system for automated classification analysis uses XML to structure its knowledge base. The Ferret team also provides XML consulting to OSTI and DOE Headquarters, particularly the National Nuclear Security Administration (NNSA). Supporting standards development allows DOE and Y-12 the opportunity both to provide input into the process and to benefit from contact with some of the leading experts in the subject matter. Oak Ridge has been for some years the location to which other DOE sites turn for expertise in SGML, XML, and related topics.

  8. Science literacy programs for K-12 teachers, public officials, news media and the public. Final report, 1994--1997

    SciTech Connect (OSTI)

    NONE

    1997-03-01T23:59:59.000Z

    On 12 July 94, The Institute for Science and Society received the above titled grant for $300,000 with an additional $323,000 awarded 14 August 95. The Institute completed the programs provided by the Department of Energy grant on 28 February 97. These programs for teachers, public officials, news media and the public will continue through 31 December 97 with funding from other sources. The Institute is a non-profit 501-c-3 corporation. It was organized {open_quotes}... to help increase science literacy in all segments of the population and contribute to a more rational atmosphere than now exists for the public consideration of societal issues involving science and technology, both regional and national.{close_quotes} Institute personnel include the Honorable Mike McCormack, Director; Joan Harris, Associate Director; Kim Freier, Ed.D, Program Manager; and Sharon Hunt, Executive Secretary.

  9. THIS REPORT CONTAINS ASSESSMENTS OF COMMODITY AND TRADE ISSUES MADE BY USDA STAFF AND NOT NECESSARILY STATEMENTS OF OFFICIAL U.S.

    E-Print Network [OSTI]

    -economic development has spurred an increase in energy consumption across all major sectors of the Indian economy AND NOT NECESSARILY STATEMENTS OF OFFICIAL U.S. GOVERNMENT POLICY Required Report - public distribution Date: 7 of renewable energy resources as alternate fuels to supplement transport fuels (gasoline and diesel

  10. Generated using version 3.2 of the official AMS LATEX template Mesoscale Predictability and Initial-Condition Error Growth in1

    E-Print Network [OSTI]

    Generated using version 3.2 of the official AMS LATEX template Mesoscale Predictability and Initial;ABSTRACT5 Early investigations suggested that mesoscale atmospheric motions would have very limited6 cascade. In contrast, subsequent studies proposed that many mesoscale cir-8 culations inherit

  11. Generated using version 3.1.2 of the official AMS LATEX template Electric Field Reversal in Sprite Electric Field Signature1

    E-Print Network [OSTI]

    Hager, William

    Electric Field Signature1 Richard G. Sonnenfeld Langmuir Laboratory and Physics Department, New Mexico trigonometry), resulting in a net positive39 electric field at the observer. The intermediate point between P1Generated using version 3.1.2 of the official AMS LATEX template Electric Field Reversal in Sprite

  12. Generated using version 3.2 of the official AMS LATEX template Supplementary material for: Spatial and Temporal Scales of1

    E-Print Network [OSTI]

    Stevens, David

    ) then the vorticity equation does not balance. It should be noted that wd35 is not calculated in the model codeGenerated using version 3.2 of the official AMS LATEX template Supplementary material for: Spatial and Temporal Scales of1 Sverdrup Balance2 Matthew D. Thomas School of Environmental Sciences, University

  13. CrowdPhase: crowdsourcing the phase problem

    SciTech Connect (OSTI)

    Jorda, Julien; Sawaya, Michael R. [Institute for Genomics and Proteomics, 611 Charles Young Drive East, Los Angeles, CA 90095 (United States); Yeates, Todd O., E-mail: yeates@mbi.ucla.edu [Institute for Genomics and Proteomics, 611 Charles Young Drive East, Los Angeles, CA 90095 (United States); Molecular Biology Institute, 611 Charles Young Drive East, Los Angeles, CA 90095 (United States); University of California, 611 Charles Young Drive East, Los Angeles, CA 90095 (United States)

    2014-06-01T23:59:59.000Z

    The idea of attacking the phase problem by crowdsourcing is introduced. Using an interactive, multi-player, web-based system, participants work simultaneously to select phase sets that correspond to better electron-density maps in order to solve low-resolution phasing problems. The human mind innately excels at some complex tasks that are difficult to solve using computers alone. For complex problems amenable to parallelization, strategies can be developed to exploit human intelligence in a collective form: such approaches are sometimes referred to as ‘crowdsourcing’. Here, a first attempt at a crowdsourced approach for low-resolution ab initio phasing in macromolecular crystallography is proposed. A collaborative online game named CrowdPhase was designed, which relies on a human-powered genetic algorithm, where players control the selection mechanism during the evolutionary process. The algorithm starts from a population of ‘individuals’, each with a random genetic makeup, in this case a map prepared from a random set of phases, and tries to cause the population to evolve towards individuals with better phases based on Darwinian survival of the fittest. Players apply their pattern-recognition capabilities to evaluate the electron-density maps generated from these sets of phases and to select the fittest individuals. A user-friendly interface, a training stage and a competitive scoring system foster a network of well trained players who can guide the genetic algorithm towards better solutions from generation to generation via gameplay. CrowdPhase was applied to two synthetic low-resolution phasing puzzles and it was shown that players could successfully obtain phase sets in the 30° phase error range and corresponding molecular envelopes showing agreement with the low-resolution models. The successful preliminary studies suggest that with further development the crowdsourcing approach could fill a gap in current crystallographic methods by making it possible to extract meaningful information in cases where limited resolution might otherwise prevent initial phasing.

  14. Map-likelihood phasing

    SciTech Connect (OSTI)

    Terwilliger, Thomas C., E-mail: terwilliger@lanl.gov [Bioscience Division, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    2001-12-01T23:59:59.000Z

    A map-likelihood function is described that can yield phase probabilities with very low model bias. The recently developed technique of maximum-likelihood density modification [Terwilliger (2000 ?), Acta Cryst. D56, 965–972] allows a calculation of phase probabilities based on the likelihood of the electron-density map to be carried out separately from the calculation of any prior phase probabilities. Here, it is shown that phase-probability distributions calculated from the map-likelihood function alone can be highly accurate and that they show minimal bias towards the phases used to initiate the calculation. Map-likelihood phase probabilities depend upon expected characteristics of the electron-density map, such as a defined solvent region and expected electron-density distributions within the solvent region and the region occupied by a macromolecule. In the simplest case, map-likelihood phase-probability distributions are largely based on the flatness of the solvent region. Though map-likelihood phases can be calculated without prior phase information, they are greatly enhanced by high-quality starting phases. This leads to the technique of prime-and-switch phasing for removing model bias. In prime-and-switch phasing, biased phases such as those from a model are used to prime or initiate map-likelihood phasing, then final phases are obtained from map-likelihood phasing alone. Map-likelihood phasing can be applied in cases with solvent content as low as 30%. Potential applications of map-likelihood phasing include unbiased phase calculation from molecular-replacement models, iterative model building, unbiased electron-density maps for cases where 2F{sub o} ? F{sub c} or ?{sub A}-weighted maps would currently be used, structure validation and ab initio phase determination from solvent masks, non-crystallographic symmetry or other knowledge about expected electron density.

  15. Collective Phase Sensitivity

    E-Print Network [OSTI]

    Yoji Kawamura; Hiroya Nakao; Kensuke Arai; Hiroshi Kori; Yoshiki Kuramoto

    2008-07-08T23:59:59.000Z

    The collective phase response to a macroscopic external perturbation of a population of interacting nonlinear elements exhibiting collective oscillations is formulated for the case of globally-coupled oscillators. The macroscopic phase sensitivity is derived from the microscopic phase sensitivity of the constituent oscillators by a two-step phase reduction. We apply this result to quantify the stability of the macroscopic common-noise induced synchronization of two uncoupled populations of oscillators undergoing coherent collective oscillations.

  16. OFFICE FOR OFFICIAL PUBLICATIONSATIONSA

    E-Print Network [OSTI]

    De Cindio, Fiorella

    Desertification UNFCCC United Nations Framework Convention on Climate Change SMAP Short and Medium Term Priority Drawing for the cover-page: Jenny Jokinen, 11 years old, Finland ("Green Week" competition) A great deal 3. BUILDING ON THE LESSONS LEARNT - RECOMMENDATIONS A. SMAP Design and Project Management (1) SMAP

  17. PPPO Official Website

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

    1192001 NA View 462 S-755-T-3-2-03 1192001 NA View 463 C-746-A East End Smelter 1192001 732007 View 464 C-746-A West End Smelter 1192001 1082002 732007...

  18. PPPO Official Website

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

    for 2009) C-410-B Sludge Lagoon (planned for 2009) Demolition of the C-746-A West End Smelter (complete);C-611-M and N Sanitary Water Storage Tanks (demolished in February 2009);...

  19. Officials receive national awards

    E-Print Network [OSTI]

    Minnesota, University of

    .mnltap.umn.edu The trusted resource for Minnesota's local transportation agencies Summer2010Vol.18,No.3 SAFETY LED signals concrete recycling Washington County was facing fund- ing challenges when it needed to do something

  20. PPPO Official Website

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

    cleanup Disposal of legacy waste D&D of inactive facilities Storage and conversion of depleted uranium hexafluoride (DUF6) Interim storagedisposition of surplus uranium...

  1. PPPO Official Website

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

    Depleted Uranium Hexafluoride (DUF6) Conversion Project The Uranium Hexafluoride (DUF6) Conversion Project provides for the design, construction and operation of two facilities,...

  2. PPPO Official Website

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

    Plant on the Paducah Gaseous Diffusion Plant (PGDP) site recovered the uranium from depleted uranium hexafluoride. Drums emptied during the conversion process were crushed...

  3. PPPO Official Website

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

    of Kentucky, LLC, PAD-ENG-11-1381, July 18, 2011 PPPO Request for Offers for the Sale of Depleted and Off-Spec Uranium Hexafluoride Inventories PGDP Tour Book Industry Day...

  4. PPPO Official Website

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

    following at the Portsmouth and Paducah Sites. Environmental Remediation Waste Management Depleted Uranium Hexafluoride (DUF6) Conversion Decontamination and Decommissioning...

  5. PPPO Official Website

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

    and Conversion of DUF6 for the PPPO Department of Energy Awards Contract for Operation of Depleted Uranium Hexafluoride Conversion at Portsmouth, Paducah Facilities Lexington, KY...

  6. PPPO Official Website

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

    waste management, and facility decontamination and decommissioning. He also manages the Depleted Uranium Hexafluoride (DUF6) Conversion Project, which involves construction and...

  7. PPPO Official Website

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

    Notices Request For Offers for the Sale Of Depleted and Off-Specification Uranium Hexafluoride Inventories, Request for Offers Number: DE-SOL-0005845 Questions and Responses to RFO...

  8. PPPO Official Website

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

    Impact Statement for Alternative Strategies for the Long-Term Management and Use of Depleted Uranium Hexafluoride (DUF6 PEIS). The DUF6 PEIS was completed in 1999 and...

  9. PPPO Official Website

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

    on parallel paths to construct facilities to convert the Department's large inventory of depleted uranium hexafluoride (DUF6) into a more stable chemical form for beneficial reuse...

  10. RESEARCH ARTICLE OFFICIAL JOURNAL

    E-Print Network [OSTI]

    Yu, Haiyuan

    online 5 March 2014 in Wiley Online Library (www.wiley.com/humanmutation). DOI: 10.1002/humu.22534.yu@cornell.edu Contract grant sponsors: National Cancer Institute (grant CA167824); National In- stitute of General structures and dis- ordered elements play a role in modulating function [Lahiry et al., 2010]. Protein

  11. Official Use Only

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronic Input Options Gary L. Hirsch SNL 2001a,Summary; i-C C lKansas City

  12. OFFICIAL STATEMENT NEW ISSUE

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire3627 FederalTransformers | DepartmentAnnual

  13. Official Documents - Hanford Site

    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 for4,645 3,625 1,006 492 742EnergyOnItemResearch > TheNuclear Astrophysics One ofSpeeding accessOffice ofOffices

  14. Stabilising the Blue Phases

    E-Print Network [OSTI]

    G. P. Alexander; J. M. Yeomans

    2006-09-22T23:59:59.000Z

    We present an investigation of the phase diagram of cholesteric liquid crystals within the framework of Landau - de Gennes theory. The free energy is modified to incorporate all three Frank elastic constants and to allow for a temperature dependent pitch in the cholesteric phase. It is found that the region of stability of the cubic blue phases depends significantly on the value of the elastic constants, being reduced when the bend elastic constant is larger than splay and when twist is smaller than the other two. Most dramatically we find a large increase in the region of stability of blue phase I, and a qualitative change in the phase diagram, in a system where the cholesteric phase displays helix inversion.

  15. Crystal phase identification

    DOE Patents [OSTI]

    Michael, Joseph R. (Albuquerque, NM); Goehner, Raymond P. (Albuquerque, NM); Schlienger, Max E. (Albuquerque, NM)

    2001-01-01T23:59:59.000Z

    A method and apparatus for determining the crystalline phase and crystalline characteristics of a sample. This invention provides a method and apparatus for unambiguously identifying and determining the crystalline phase and crystalline characteristics of a sample by using an electron beam generator, such as a scanning electron microscope, to obtain a backscattered electron Kikuchi pattern of a sample, and extracting crystallographic and composition data that is matched to database information to provide a quick and automatic method to identify crystalline phases.

  16. Flexoelectric blue phases

    E-Print Network [OSTI]

    G P Alexander; J M Yeomans

    2007-07-01T23:59:59.000Z

    We describe the occurence and properties of liquid crystal phases showing two dimensional splay and bend distortions which are stabilised by flexoelectric interactions. These phases are characterised by regions of locally double splayed order separated by topological defects and are thus highly analogous to the blue phases of cholesteric liquid crystals. We present a mean field analysis based upon the Landau--de Gennes Q-tensor theory and construct a phase diagram for flexoelectric structures using analytic and numerical results. We stress the similarities and discrepancies between the cholesteric and flexoelectric cases.

  17. Thermodynamically Stable Blue Phases

    E-Print Network [OSTI]

    F. Castles; S. M. Morris; E. M. Terentjev; H. J. Coles

    2011-01-28T23:59:59.000Z

    We show theoretically that flexoelectricity stabilizes blue phases in chiral liquid crystals. Induced internal polarization reduces the elastic energy cost of splay and bend deformations surrounding singular lines in the director field. The energy of regions of double twist is unchanged. This in turn reduces the free energy of the blue phase with respect to that of the chiral nematic phase, leading to stability over a wider temperature range. The theory explains the discovery of large temperature range blue phases in highly flexoelectric "bimesogenic" and "bent-core" materials, and predicts how this range may be increased further.

  18. Holographic Magnetic Phase Transition

    E-Print Network [OSTI]

    Gilad Lifschytz; Matthew Lippert

    2009-06-21T23:59:59.000Z

    We study four-dimensional interacting fermions in a strong magnetic field, using the holographic Sakai-Sugimoto model of intersecting D4 and D8 branes in the deconfined, chiral-symmetric parallel phase. We find that as the magnetic field is varied, while staying in the parallel phase, the fermions exhibit a first-order phase transition in which their magnetization jumps discontinuously. Properties of this transition are consistent with a picture in which some of the fermions jump to the lowest Landau level. Similarities to known magnetic phase transitions are discussed.

  19. Phase 1 -- 4

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

    Requirements" " " "Phase Two - Initial Project Development" "Replace Std Task 2-1","DO RFP Development - On Site Consultation","FEMP Services will provide technical consultation...

  20. UPVG phase 2 report

    SciTech Connect (OSTI)

    NONE

    1995-08-01T23:59:59.000Z

    The Utility PhotoVoltaic Group (UPVG), supported by member dues and a grant from the US Department of Energy, has as its mission the acceleration of the use of cost-effective small-scale and emerging large-scale applications of photovoltaics for the benefit of electric utilities and their customers. Formed in October, 1992, with the support of the American Public Power Association, Edison Electric Institute, and the National Rural Electric Cooperative Association, the UPVG currently has 90 members from all sectors of the electric utility industry. The UPVG`s efforts as conceived were divided into four phases: Phase 0--program plan; Phase 1--organization and strategy development; Phase 2--creating market assurance; and Phase 3--higher volume purchases. The Phase 0 effort developed the program plan and was completed early in 1993. The Phase 1 goal was to develop the necessary background information and analysis to lead to a decision as to which strategies could be undertaken by utilities to promote greater understanding of PV markets and achieve increased volumes of PV purchases. This report provides the details of the UPVG`s Phase 2 efforts to initiate TEAM-UP, its multiyear, 50-MW hardware initiative.

  1. Requirements and Design Requirements Phase

    E-Print Network [OSTI]

    Razak, Saquib

    at a time. #12;Unit 24 8 Design Phase The next step in the SDLC is the Design phase which translates

  2. Combustion 2000: Phase II

    SciTech Connect (OSTI)

    Unknown

    1999-11-01T23:59:59.000Z

    The goals of the program are to develop a coal-fired high performance power generation system (HIPPS) that is capable of: thermal efficiency (HHV) {ge} 47%; NOx, SOx, and particulates {le} 10% NSPS (New Source Performance Standard); coal providing {ge} 65% of heat input; all solid wastes benign; and cost of electricity {le} 90% of present plants. Phase 1, which began in 1992, focused on the analysis of various configurations of indirectly fired cycles and on technical assessments of alternative plant subsystems and components, including performance requirements, developmental status, design options, complexity and reliability, and capital and operating costs. Phase 1 also included preliminary R and D and the preparation of designs for HIPPS commercial plants approximately 300 MWe in size. This Phase, Phase 2, had as its initial objective the development of a complete design base for the construction and operation of a HIPPS prototype plant to be constructed in Phase 3. As part of a descoping initiative, the Phase 3 program has been eliminated and work related to the commercial plant design has been ended. The rescoped program retained a program of engineering research and development focusing on high temperature heat exchangers, e.g. HITAF development (Task 2); a rescoped Task 6 that is pertinent to Vision 21 objectives and focuses on advanced cycle analysis and optimization, integration of gas turbines into complex cycles, and repowering designs; and preparation of the Phase 2 Technical Report (Task 8). This rescoped program deleted all subsystem testing (Tasks 3, 4,and 5) and the development of a site-specific engineering design and test plan for the HIPPS prototype plant (Task 7). Work reported herein is from: Task 2.1 HITAF Combustors; Task 2.2 HITAF Air Heaters; and Task 6 HIPPS Commercial Plant Design Update.

  3. Electroweak phase transitions

    SciTech Connect (OSTI)

    Anderson, G.W.

    1991-09-16T23:59:59.000Z

    An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, {l_angle}{phi}{r_angle}{sub T} is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of {l_angle}{phi}{r_angle}{sub T}. In very minimal extensions of the standard model it is quite easy to increase {l_angle}{phi}{r_angle}{sub T} so that anomalous baryon number violation is suppressed after completion of the phase transition. Hence baryogenesis at the electroweak phase transition is tenable in minimal of the standard model. In some cases additional phase transitions are possible. For a light Higgs boson, when the top quark mass is sufficiently large, the state where the Higgs field has a vacuum expectation value {l_angle}{phi}{r_angle} = 246 GeV is not the true minimum of the Higgs potential. When this is the case, and when the top quark mass exceeds some critical value, thermal fluctuations in the early universe would have rendered the state {l_angle}{phi}{r_angle} = 246 GeV unstable. The requirement that the state {l_angle}{phi}{r_angle} = 246 GeV is sufficiently long lived constrains the masses of the Higgs boson and the top quark. Finally, we consider whether local phase transitions can be induced by heavy particles which act as seeds for deformations in the scalar field.

  4. Electroweak phase transitions

    SciTech Connect (OSTI)

    Anderson, G.W.

    1991-09-16T23:59:59.000Z

    An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, {l angle}{phi}{r angle}{sub T} is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of {l angle}{phi}{r angle}{sub T}. In very minimal extensions of the standard model it is quite easy to increase {l angle}{phi}{r angle}{sub T} so that anomalous baryon number violation is suppressed after completion of the phase transition. Hence baryogenesis at the electroweak phase transition is tenable in minimal of the standard model. In some cases additional phase transitions are possible. For a light Higgs boson, when the top quark mass is sufficiently large, the state where the Higgs field has a vacuum expectation value {l angle}{phi}{r angle} = 246 GeV is not the true minimum of the Higgs potential. When this is the case, and when the top quark mass exceeds some critical value, thermal fluctuations in the early universe would have rendered the state {l angle}{phi}{r angle} = 246 GeV unstable. The requirement that the state {l angle}{phi}{r angle} = 246 GeV is sufficiently long lived constrains the masses of the Higgs boson and the top quark. Finally, we consider whether local phase transitions can be induced by heavy particles which act as seeds for deformations in the scalar field.

  5. Viscosity near phase transitions

    E-Print Network [OSTI]

    Antonio Dobado; Felipe J. Llanes-Estrada; Juan M. Torres-Rincon

    2010-09-30T23:59:59.000Z

    Probably the most enticing observation in theoretical physics during the last decade was the discovery of the great amount of consequences obtained from the AdS/CFT conjecture put forward by Maldacena. In this work we review how this correspondence can be used to address hydrodynamic properties such as the viscosity of some strongly interacting systems. We also employ the Boltzmann equation for those systems closer to low-energy QCD, and argue that this kind of transport coefficients can be related to phase transitions, in particular the QGP/hadronic phase transition studied in heavy ion collisions.

  6. ACT Basic Training 05/08/2009ACT Basic Training 05/08/2009ACT Basic Training 05/08/2009ACT Basic Training 05/08/2009 OFFICIAL ANNOUNCEMENT & REGISTRATION INFORMATION

    E-Print Network [OSTI]

    Zhou, Yaoqi

    ACT Basic Training 05/08/2009ACT Basic Training 05/08/2009ACT Basic Training 05/08/2009ACT Basic Training 05/08/2009 OFFICIAL ANNOUNCEMENT & REGISTRATION INFORMATION ACT Basic Training ­ May 8, 2009 PURPOSE: The ACT Basic Training is designed to help staff who are new to Assertive Community Treatment

  7. 2012 by the State of New Mexico. All rights reserved. UCC Official Comments by ALI & the NCCUSL. Reproduced with permission of the PEB for the UCC. All rights reserved.

    E-Print Network [OSTI]

    Johnson, Eric E.

    1 © 2012 by the State of New Mexico. All rights reserved. UCC Official Comments © by ALI & the NCCUSL. Reproduced with permission of the PEB for the UCC. All rights reserved. 73-20-25. Short title physical assets of New Mexico, and their preservation and development are necessary to protect and promote

  8. Difficult beginning ? The early years of the Royal Academy of Arts in London In his first discourse at the official opening of the Royal Academy of Arts in London

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Difficult beginning ? The early years of the Royal Academy of Arts in London In his first discourse at the official opening of the Royal Academy of Arts in London (RA) on January 2nd 1769, Joshua accomplishment while lamenting the amount of time the process had taken: "An Academy, in which the Polite Arts

  9. The authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of ASAE, and its printing and distribution does not constitute an endorsement of views which m

    E-Print Network [OSTI]

    Kentucky, University of

    presentation does not necessarily reflect the official position of ASAE, and its printing and distribution does and system performance as caused by factors such as operation static pressure, fan belt condition, and dust alternative to estimating ventilation rate. The reliability of CO2 balance method depends on the validity

  10. Phase change compositions

    DOE Patents [OSTI]

    Salyer, Ival O. (Dayton, OH)

    1989-01-01T23:59:59.000Z

    Compositions containing crystalline, straight chain, alkyl hydrocarbons as phase change materials including cementitious compositions containing the alkyl hydrocarbons neat or in pellets or granules formed by incorporating the alkyl hydrocarbons in polymers or rubbers; and polymeric or elastomeric compositions containing alkyl hydrocarbons.

  11. Phase change compositions

    DOE Patents [OSTI]

    Salyer, Ival O. (Dayton, OH); Griffen, Charles W. (Mason, OH)

    1986-01-01T23:59:59.000Z

    Compositions containing crystalline, long chain, alkyl hydrocarbons as phase change materials including cementitious compositions containing the alkyl hydrocarbons neat or in pellets or granules formed by incorporating the alkyl hydrocarbons in polymers or rubbers; and polymeric or elastomeric compositions containing alkyl hydrocarbons.

  12. Phase II Final Report

    SciTech Connect (OSTI)

    Schuknecht, Nate [Project Manager; White, David [Principle Investigator; Hoste, Graeme [Research Engineer

    2014-09-11T23:59:59.000Z

    The SkyTrough DSP will advance the state-of-the-art in parabolic troughs for utility applications, with a larger aperture, higher operating temperature, and lower cost. The goal of this project was to develop a parabolic trough collector that enables solar electricity generation in the 2020 marketplace for a 216MWe nameplate baseload power plant. This plant requires an LCOE of 9¢/kWhe, given a capacity factor of 75%, a fossil fuel limit of 15%, a fossil fuel cost of $6.75/MMBtu, $25.00/kWht thermal storage cost, and a domestic installation corresponding to Daggett, CA. The result of our optimization was a trough design of larger aperture and operating temperature than has been fielded in large, utility scale parabolic trough applications: 7.6m width x 150m SCA length (1,118m2 aperture), with four 90mm diameter × 4.7m receivers per mirror module and an operating temperature of 500°C. The results from physical modeling in the System Advisory Model indicate that, for a capacity factor of 75%: The LCOE will be 8.87¢/kWhe. SkyFuel examined the design of almost every parabolic trough component from a perspective of load and performance at aperture areas from 500 to 2,900m2. Aperture-dependent design was combined with fixed quotations for similar parts from the commercialized SkyTrough product, and established an installed cost of $130/m2 in 2020. This project was conducted in two phases. Phase I was a preliminary design, culminating in an optimum trough size and further improvement of an advanced polymeric reflective material. This phase was completed in October of 2011. Phase II has been the detailed engineering design and component testing, which culminated in the fabrication and testing of a single mirror module. Phase II is complete, and this document presents a summary of the comprehensive work.

  13. Phase modulated multiphoton microscopy

    E-Print Network [OSTI]

    Karki, Khadga Jung; Pullerits, Tonu

    2015-01-01T23:59:59.000Z

    We show that the modulation of the phases of the laser beams of ultra-short pulses leads to modulation of the two photon fluorescence intensity. The phase modulation technique when used in multi-photon microscopy can improve the signal to noise ratio. The technique can also be used in multiplexing the signals in the frequency domain in multi-focal raster scanning microscopy. As the technique avoids the use of array detectors as well as elaborate spatiotemporal multiplexing schemes it provides a convenient means to multi-focal scanning in axial direction. We show examples of such uses. Similar methodology can be used in other non-linear scanning microscopies, such as second or third harmonic generation microscopy.

  14. Phase Change | Jefferson Lab

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomassPPPOPetroleum Reserves Vision, Mission and1ProposalPhase

  15. Theory of Polar Blue Phases

    E-Print Network [OSTI]

    Shaikh M. Shamid; David W. Allender; Jonathan V. Selinger

    2014-05-22T23:59:59.000Z

    In liquid crystals, if flexoelectric couplings between polar order and director gradients are strong enough, the uniform nematic phase can become unstable to formation of a modulated polar phase. Previous theories have predicted two types of modulation, twist-bend and splay-bend; the twist-bend phase has been found in recent experiments. Here, we investigate other types of modulation, using lattice simulations and Landau theory. In addition to twist-bend and splay-bend, we also find polar blue phases, with 2D or 3D modulations of both director and polar order. We compare polar blue phases with chiral blue phases, and discuss opportunities for observing them experimentally.

  16. Multi-phasing CFD

    SciTech Connect (OSTI)

    Stosic, Zoran V. [Framatome ANP GmbH, P.O. Box 3220, 91050 Erlangen (Germany); Stevanovic, Vladimir D. [University of Belgrade, Kraljice Marije 16, 11000 Belgrade, Serbia and Montenegro (Yugoslavia)

    2002-07-01T23:59:59.000Z

    Computational fluid dynamics for multiphase flows is an emerging field. Due to the complexity and divergence of multiphase thermal and hydraulic problems, further development of multiphase flow modelling, closure laws and numerical methods is needed in order to achieve the general purpose and optimised CFD (Computational Fluid Dynamics) methods, which will be applicable to the wide variety of multiphase flow problems. In the paper, an original approach to the various aspects of multiphase CFD modelling is presented. It is based on the multi-fluid modelling approach, development of necessary closure laws and derivation of appropriate numerical methods for efficient governing equations solution. Velocity and pressure fields are solved with the SIMPLE (Semi-Implicit Method for Pressure-Linked Equations) type pressure-corrector method developed for the multiphase flow conditions. For the solution of scalar parameters transport equations both implicit and explicit methods are presented. The implicit method is suitable for steady state, slow transients and problems without the sharp fronts propagation. Explicit method is developed in order to predict scalar parameters fronts propagation, as well as phase interface tracking problems. The challenge towards the multiphase flow solution on both the macro and micro level is presented in order to perform multiphase CFD simulations and analyses of multiphase flows in complex geometry of nuclear power plant components, such as nuclear fuel rod bundles thermal-hydraulics. Presented methodology and obtained CFD results comprise micro-scale phenomena of phases' separation, interface tracking, heated surfaces dry-out and critical heat flux occurrence, as well as macro-scale transport and distributions of phase volumes. (authors)

  17. NGNP PHASE I REVIEW

    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 ChinaofSchaeferApril 1,(EAC)TABLEChallenges| Department of EnergyFriday,NGNP PHASE I

  18. Radiological Release Accident Investigation Report - Phase 1...

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

    Radiological Release Accident Investigation Report - Phase 1 Radiation Report Radiological Release Accident Investigation Report - Phase 1 Radiation Report Phase 1 of this accident...

  19. Joint estimation of phase and phase diffusion for quantum metrology

    E-Print Network [OSTI]

    Mihai D. Vidrighin; Gaia Donati; Marco G. Genoni; Xian-Min Jin; W. Steven Kolthammer; M. S. Kim; Animesh Datta; Marco Barbieri; Ian A. Walmsley

    2014-10-20T23:59:59.000Z

    Phase estimation, at the heart of many quantum metrology and communication schemes, can be strongly affected by noise, whose amplitude may not be known, or might be subject to drift. Here, we investigate the joint estimation of a phase shift and the amplitude of phase diffusion, at the quantum limit. For several relevant instances, this multiparameter estimation problem can be effectively reshaped as a two-dimensional Hilbert space model, encompassing the description of an interferometer phase probed with relevant quantum states -- split single-photons, coherent states or N00N states. For these cases, we obtain a trade-off bound on the statistical variances for the joint estimation of phase and phase diffusion, as well as optimum measurement schemes. We use this bound to quantify the effectiveness of an actual experimental setup for joint parameter estimation for polarimetry. We conclude by discussing the form of the trade-off relations for more general states and measurements.

  20. Options Study - Phase II

    SciTech Connect (OSTI)

    R. Wigeland; T. Taiwo; M. Todosow; W. Halsey; J. Gehin

    2010-09-01T23:59:59.000Z

    The Options Study has been conducted for the purpose of evaluating the potential of alternative integrated nuclear fuel cycle options to favorably address the issues associated with a continuing or expanding use of nuclear power in the United States. The study produced information that can be used to inform decisions identifying potential directions for research and development on such fuel cycle options. An integrated nuclear fuel cycle option is defined in this study as including all aspects of the entire nuclear fuel cycle, from obtaining natural resources for fuel to the ultimate disposal of used nuclear fuel (UNF) or radioactive wastes. Issues such as nuclear waste management, especially the increasing inventory of used nuclear fuel, the current uncertainty about used fuel disposal, and the risk of nuclear weapons proliferation have contributed to the reluctance to expand the use of nuclear power, even though it is recognized that nuclear power is a safe and reliable method of producing electricity. In this Options Study, current, evolutionary, and revolutionary nuclear energy options were all considered, including the use of uranium and thorium, and both once-through and recycle approaches. Available information has been collected and reviewed in order to evaluate the ability of an option to clearly address the challenges associated with the current implementation and potential expansion of commercial nuclear power in the United States. This Options Study is a comprehensive consideration and review of fuel cycle and technology options, including those for disposal, and is not constrained by any limitations that may be imposed by economics, technical maturity, past policy, or speculated future conditions. This Phase II report is intended to be used in conjunction with the Phase I report, and much information in that report is not repeated here, although some information has been updated to reflect recent developments. The focus in this Options Study was to identify any nuclear fuel cycle technology or option that may result in a significant beneficial impact to the issues as compared to the current U.S. approach of once-through use of nuclear fuel in LWRs or similar reactors followed by direct disposal of UNF. This approach was taken because incremental differences may be difficult to clearly identify and justify due to the large uncertainties that can be associated with the specific causes of the issues. Phase II of this Options Study continued the review of nuclear fuel cycle options that was initiated and documented during Phase I, concentrating on reviewing and summarizing the potential of integrated nuclear fuel cycles. However, based on the reviews of previous studies and available data, it was not always possible to clearly determine sufficiently large differences between the various fuel cycle and technology options for some of the issues or evaluation measures, for example, in cases where only incremental differences with respect to the issues might be achieved regardless of the fuel cycle option or technologies being considered, or where differences were insufficient to clearly rise above the uncertainties.

  1. Berry Phase in Neutrino Oscillations

    E-Print Network [OSTI]

    Xiao-Gang He; Xue-Qian Li; Bruce H. J. McKellar; Yue Zhang

    2005-05-18T23:59:59.000Z

    We study the Berry phase in neutrino oscillations for both Dirac and Majorana neutrinos. In order to have a Berry phase, the neutrino oscillations must occur in a varying medium, the neutrino-background interactions must depend on at least two independent densities, and also there must be CP violation if the neutrino interactions with matter are mediated only by the standard model W and Z boson exchanges which implies that there must be at least three generations of neutrinos. The CP violating Majorana phases do not play a role in generating a Berry phase. We show that a natural way to satisfy the conditions for the generation of a Berry phase is to have sterile neutrinos with active-sterile neutrino mixing, in which case at least two active and one sterile neutrinos are required. If there are additional new CP violating flavor changing interactions, it is also possible to have a non-zero Berry phase with just two generations.

  2. Academic journal papers Official Reports

    E-Print Network [OSTI]

    Li, Yi

    cluster randomised trial. BMJ, 2007. Lilford R, Brown C, Nicholl J P. Use of process measures to monitor: 398-401. Maheswaran R, Pearson T, Munro J F, Moyez J, Campbell M J, Nicholl J P. Impact of NHS walk, O'Donnell C, Heaney D. The effect of attitude to risk on decisions made by nurses using computerised

  3. Method for aqueous phase reactions

    DOE Patents [OSTI]

    Elliott, Douglas C. (Richland, WA); Hart, Todd R. (Kennewick, WA)

    2000-01-01T23:59:59.000Z

    A method for converting liquid organic material in a mixture into a product utilizing a catalyst in the form of a plurality of porous particles wherein each particle is a support having nickel metal catalytic phase or reduced nickel deposited thereon in a first dispersed phase and an additional metal deposited onto the support in a second dispersed phase. The additional metal is effective in retarding or reducing agglomeration or sintering of the nickel metal catalytic phase without substantially affecting the catalytic activity, thereby increasing the life time of the catalyst.

  4. Rheology of Cubic Blue Phases

    E-Print Network [OSTI]

    Oliver Henrich; Kevin Stratford; Peter V. Coveney; Michael E. Cates; Davide Marenduzzo

    2013-10-30T23:59:59.000Z

    We study the behaviour of cubic blue phases under shear flow via lattice Boltzmann simulations. We focus on the two experimentally observed phases, Blue Phase I (BPI) and Blue Phase II (BPII). The disclination network of Blue Phase II continuously breaks and reforms under steady shear, leading to an oscillatory stress response in time. For larger shear rates, the structure breaks up into a Grandjean texture with a cholesteric helix lying along the flow gradient direction. Blue Phase I leads to a very different response. Here, oscillations are only possible for intermediate shear rates -- very slow flow causes a transition of the initially ordered structure into an amorphous network with an apparent yield stress. Larger shear rates lead to another amorphous state with different structure of the defect network. For even larger flow rates the same break-up into a Grandjean texture as for Blue Phase II is observed. At the highest imposed flow rates both cubic blue phases adopt a flow-aligned nematic state. Our results provide the first theoretical investigation of sheared blue phases in large systems, and are relevant to understanding the bulk rheology of these materials.

  5. Official Unofficial Official Unofficial Official Unofficial Applied Music 444 . 444 445 . 445 483 . 483

    E-Print Network [OSTI]

    Portman, Douglas

    . 2 4 . 4 5 . 5 English . . . 1 . 1 . . . Geomechanics . . . 1 . 1 . . . International Relations 103 60 163 152 37 189 French 14 3 17 13 6 19 15 8 23 Geomechanics 1 . 1 1 1 2 1 2 3 Geosciences 15 4

  6. Official Unofficial Official Unofficial Official Unofficial Applied Music 445 . 445 483 . 483 505 . 505

    E-Print Network [OSTI]

    . . . . . . Geomechanics 1 . 1 . . . 1 . 1 International Relations . . . 1 . 1 . . . Linguistics 1 . 1 Geomechanics 1 1 2 1 2 3 1 1 2 Geosciences 20 3 23 18 2 20 17 1 18 German 10 3 13 4 3 7 7 1 8 Health & Society

  7. Three phase downhole separator process

    DOE Patents [OSTI]

    Cognata, Louis John (Baytown, TX)

    2008-06-24T23:59:59.000Z

    Three Phase Downhole Separator Process (TPDSP) is a process which results in the separation of all three phases, (1) oil, (2) gas, and (3) water, at the downhole location in the well bore, water disposal injection downhole, and oil and gas production uphole.

  8. Phase transition towards strange matter

    E-Print Network [OSTI]

    F. Gulminelli; Ad. R. Raduta; M. Oertel

    2012-08-31T23:59:59.000Z

    The phase diagram of a system constituted of neutrons and $\\Lambda$-hyperons in thermal equilibrium is evaluated in the mean-field approximation. It is shown that this simple system exhibits a complex phase diagram with first and second order phase transitions. Due to the generic presence of attractive and repulsive couplings, the existence of phase transitions involving strangeness appears independent of the specific interaction model. In addition we will show under which conditions a phase transition towards strange matter at high density exists, which is expected to persist even within a complete treatment including all the different strange and non- strange baryon states. The impact of this transition on the composition of matter in the inner core of neutron stars is discussed.

  9. Phase stable RF transport system

    DOE Patents [OSTI]

    Curtin, Michael T. (Los Alamos, NM); Natter, Eckard F. (San Francisco, CA); Denney, Peter M. (Los Alamos, NM)

    1992-01-01T23:59:59.000Z

    An RF transport system delivers a phase-stable RF signal to a load, such as an RF cavity of a charged particle accelerator. A circuit generates a calibration signal at an odd multiple frequency of the RF signal where the calibration signal is superimposed with the RF signal on a common cable that connects the RF signal with the load. Signal isolating diplexers are located at both the RF signal source end and load end of the common cable to enable the calibration to be inserted and extracted from the cable signals without any affect on the RF signal. Any phase shift in the calibration signal during traverse of the common cable is then functionally related to the phase shift in the RF signal. The calibration phase shift is used to control a phase shifter for the RF signal to maintain a stable RF signal at the load.

  10. Supercooling and phase coexistence in cosmological phase transitions

    SciTech Connect (OSTI)

    Megevand, Ariel; Sanchez, Alejandro D. [Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Dean Funes 3350, (7600) Mar del Plata (Argentina)

    2008-03-15T23:59:59.000Z

    Cosmological phase transitions are predicted by particle physics models, and have a variety of important cosmological consequences, which depend strongly on the dynamics of the transition. In this work we investigate in detail the general features of the development of a first-order phase transition. We find thermodynamical constraints on some quantities that determine the dynamics, namely, the latent heat, the radiation energy density, and the false-vacuum energy density. Using a simple model with a Higgs field, we study numerically the amount and duration of supercooling and the subsequent reheating and phase coexistence. We analyze the dependence of the dynamics on the different parameters of the model, namely, the energy scale, the number of degrees of freedom, and the couplings of the scalar field with bosons and fermions. We also inspect the implications for the cosmological outcomes of the phase transition.

  11. Liquid-phase compositions from vapor-phase analyses

    SciTech Connect (OSTI)

    Davis, W. Jr. (Oak Ridge Gaseous Diffusion Plant, TN (USA)); Cochran, H.D. (Oak Ridge National Lab., TN (USA))

    1990-02-01T23:59:59.000Z

    Arsenic normally is not considered to be a contaminant. However, because arsenic was found in many cylinders of UF{sub 6}, including in corrosion products, a study was performed of the distribution of the two arsenic fluorides, AsF{sub 3} and AsF{sub 5}, between liquid and vapor phases. The results of the study pertain to condensation or vaporization of liquid UF{sub 6}. This study includes use of various experimental data plus many extrapolations necessitated by the meagerness of the experimental data. The results of this study provide additional support for the vapor-liquid equilibrium model of J.M. Prausnitz and his coworkers as a means of describing the distribution of various impurities between vapor and liquid phases of UF{sub 6}. Thus, it is concluded that AsF{sub 3} will tend to concentrate in the liquid phase but that the concentration of AsF{sub 5} in the vapor phase will exceed its liquid-phase concentration by a factor of about 7.5, which is in agreement with experimental data. Because the weight of the liquid phase in a condensation operation may be in the range of thousands of times that of the vapor phase, most of any AsF{sub 5} will be in the liquid phase in spite of this separation factor of 7.5. It may also be concluded that any arsenic fluorides fed into a uranium isotope separation plant will either travel with other low-molecular-weight gases or react with materials present in the plant. 25 refs., 3 figs., 6 tabs.

  12. Phase space quantum mechanics - Direct

    SciTech Connect (OSTI)

    Nasiri, S.; Sobouti, Y.; Taati, F. [Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, Zanjan University, Zanjan (Iran); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, University of Kurdistan, D-78457 Sanadaj (Iran)

    2006-09-15T23:59:59.000Z

    Conventional approach to quantum mechanics in phase space (q,p), is to take the operator based quantum mechanics of Schroedinger, or an equivalent, and assign a c-number function in phase space to it. We propose to begin with a higher level of abstraction, in which the independence and the symmetric role of q and p is maintained throughout, and at once arrive at phase space state functions. Upon reduction to the q- or p-space the proposed formalism gives the conventional quantum mechanics, however, with a definite rule for ordering of factors of noncommuting observables. Further conceptual and practical merits of the formalism are demonstrated throughout the text.

  13. SNMR pulse sequence phase cycling

    DOE Patents [OSTI]

    Walsh, David O; Grunewald, Elliot D

    2013-11-12T23:59:59.000Z

    Technologies applicable to SNMR pulse sequence phase cycling are disclosed, including SNMR acquisition apparatus and methods, SNMR processing apparatus and methods, and combinations thereof. SNMR acquisition may include transmitting two or more SNMR pulse sequences and applying a phase shift to a pulse in at least one of the pulse sequences, according to any of a variety cycling techniques. SNMR processing may include combining SNMR from a plurality of pulse sequences comprising pulses of different phases, so that desired signals are preserved and indesired signals are canceled.

  14. Gas-phase chemical dynamics

    SciTech Connect (OSTI)

    Weston, R.E. Jr.; Sears, T.J.; Preses, J.M. [Brookhaven National Laboratory, Upton, NY (United States)

    1993-12-01T23:59:59.000Z

    Research in this program is directed towards the spectroscopy of small free radicals and reactive molecules and the state-to-state dynamics of gas phase collision, energy transfer, and photodissociation phenomena. Work on several systems is summarized here.

  15. Phase modulation in RF tag

    DOE Patents [OSTI]

    Carrender, Curtis Lee; Gilbert, Ronald W.

    2007-02-20T23:59:59.000Z

    A radio frequency (RF) communication system employs phase-modulated backscatter signals for RF communication from an RF tag to an interrogator. The interrogator transmits a continuous wave interrogation signal to the RF tag, which based on an information code stored in a memory, phase-modulates the interrogation signal to produce a backscatter response signal that is transmitted back to the interrogator. A phase modulator structure in the RF tag may include a switch coupled between an antenna and a quarter-wavelength stub; and a driver coupled between the memory and a control terminal of the switch. The driver is structured to produce a modulating signal corresponding to the information code, the modulating signal alternately opening and closing the switch to respectively decrease and increase the transmission path taken by the interrogation signal and thereby modulate the phase of the response signal. Alternatively, the phase modulator may include a diode coupled between the antenna and driver. The modulating signal from the driver modulates the capacitance of the diode, which modulates the phase of the response signal reflected by the diode and antenna.

  16. Computational phase imaging based on intensity transport

    E-Print Network [OSTI]

    Waller, Laura A. (Laura Ann)

    2010-01-01T23:59:59.000Z

    Light is a wave, having both an amplitude and a phase. However, optical frequencies are too high to allow direct detection of phase; thus, our eyes and cameras see only real values - intensity. Phase carries important ...

  17. Phase measurement system using a dithered clock

    DOE Patents [OSTI]

    Fairley, C.R.; Patterson, S.R.

    1991-05-28T23:59:59.000Z

    A phase measurement system is disclosed which measures the phase shift between two signals by dithering a clock signal and averaging a plurality of measurements of the phase differences between the two signals. 8 figures.

  18. Inverse operator representations of quantum phase

    E-Print Network [OSTI]

    G. M. Saxena

    2008-03-14T23:59:59.000Z

    We define quantum phase in terms of inverses of annihilation and creation operators. We show that like Susskind - Glogower phase operators, the measured phase operators and the unitary phase operators can be defined in terms of the inverse operators. However, for the unitary phase operator the Hilbert space includes the negative energy states. The quantum phase in inverse operator representation may find the applications in the field of quantum optics particularly in the squeezed states.

  19. Thermodynamics of Blue Phases In Electric Fields

    E-Print Network [OSTI]

    O. Henrich; D. Marenduzzo; K. Stratford; M. E. Cates

    2010-03-04T23:59:59.000Z

    We present extensive numerical studies to determine the phase diagrams of cubic and hexagonal blue phases in an electric field. We confirm the earlier prediction that hexagonal phases, both 2 and 3 dimensional, are stabilized by a field, but we significantly refine the phase boundaries, which were previously estimated by means of a semi-analytical approximation. In particular, our simulations show that the blue phase I -- blue phase II transition at fixed chirality is largely unaffected by electric field, as observed experimentally.

  20. Phasing Renewable Energy Implementation | Department of Energy

    Office of Environmental Management (EM)

    Phasing Renewable Energy Implementation Phasing Renewable Energy Implementation If conventional or other renewable energy funding cannot be procured, or if an agency is working...

  1. Geometric phase in Stückelberg interferometry

    E-Print Network [OSTI]

    Lih-King Lim; Jean-Noël Fuchs; Gilles Montambaux

    2014-12-18T23:59:59.000Z

    We study the time evolution of a two-dimensional quantum particle exhibiting an energy spectrum, made of two bands, with two Dirac cones, as e.g. in the band structure of a honeycomb lattice. A force is applied such that the particle experiences two Landau-Zener transitions in succession. The adiabatic evolution between the two transitions leads to St\\"uckelberg interferences, due to two possible trajectories in energy space. In addition to well-known dynamical and Stokes phases, the interference pattern reveals a geometric phase which depends on the chirality (winding number) and the mass sign associated to each Dirac cone, as well as on the type of trajectory (parallel or diagonal with respect to the two cones) in parameter space. This geometric phase reveals the coupling between the bands encoded in the structure of the wavefunctions.

  2. Phase Transformations in Confined Nanosystems

    SciTech Connect (OSTI)

    Shield, Jeffrey E. [Department of Mechanical & Materials Engineering] [Department of Mechanical & Materials Engineering; Belashchenko, Kirill [Department of Physics & Astronomy] [Department of Physics & Astronomy

    2014-04-29T23:59:59.000Z

    This project discovered that non-equilibrium structures, including chemically ordered structures not observed in bulk systems, form in isolated nanoscale systems. Further, a generalized model was developed that effectively explained the suppression of equilibrium phase transformations. This thermodynamic model considered the free energy decrease associated with the phase transformation was less than the increase in energy associated with the formation of an interphase interface, therefore inhibiting the phase transformation. A critical diameter exists where the system transitions to bulk behavior, and a generalized equation was formulated that successfully predicted this transition in the Fe-Au system. This provided and explains a new route to novel structures not possible in bulk systems. The structural characterization was accomplished using transmission electron microscopy in collaboration with Matthew Kramer of Ames Laboratory. The PI and graduate student visited Ames Laboratory several times a year to conduct the experiments.

  3. Phase appearance or disappearance in two-phase flows

    E-Print Network [OSTI]

    Boyer, Edmond

    -phase flows. Such models have crucial importance in many industrial areas such as nuclear power plant safety safety studies. In nuclear reactors, the appearance of vapor around the fuel rods interferes.cordier@cea.fr, anela.kumbaro@cea.fr 2 Universit´e de Toulouse; UPS, INSA, UT1, UTM ; Institut de Math´ematiques de

  4. Geometric phases in quantum information

    E-Print Network [OSTI]

    Erik Sjöqvist

    2015-03-16T23:59:59.000Z

    The rise of quantum information science has opened up a new venue for applications of the geometric phase (GP), as well as triggered new insights into its physical, mathematical, and conceptual nature. Here, we review this development by focusing on three main themes: the use of GPs to perform robust quantum computation, the development of GP concepts for mixed quantum states, and the discovery of a new type of topological phases for entangled quantum systems. We delineate the theoretical development as well as describe recent experiments related to GPs in the context of quantum information.

  5. Ising model: secondary phase transition

    E-Print Network [OSTI]

    You-gang Feng

    2012-04-09T23:59:59.000Z

    Lttice-spin phonons are considered, which make the heat capacity at the critical temperature satisfy experimental observations better. There is a BEC phase transition in an Ising model attributable to the lattice-spin phonons. We proved that the spin-wave theory only is available after BEC transition, and the magnons have the same characteristics as the lattice-spin phonons', resulting from quantum effect. Energy-level overlap effect at ultralow temperature is found. A prediction of BEC phase transition in a crystal is put forward as our theory generalization.

  6. PHASE NOISE IN MICROWAVE OSCILLATORS AND AMPLIFIERS

    E-Print Network [OSTI]

    Popovic, Zoya

    presents analysis and measurements of phase noise in oscilla- tors and amplifiers. Low phase noise- multaneous small size, low phase noise, DC power consumption and thermal drift is presented. Design stepsPHASE NOISE IN MICROWAVE OSCILLATORS AND AMPLIFIERS by MILOS JANKOVI´C B.E., University of Arkansas

  7. Reference Phase of Fresnel Zone Plates

    E-Print Network [OSTI]

    G. W. Webb

    2003-02-28T23:59:59.000Z

    The standard zone plate assumes that the shortest ray connecting a radiation source and a detection point has a phase of 0 deg thereby defining a reference phase. Here we examine the experimental consequences of varying this reference phase from 0 deg to 360 deg. It is concluded that reference phase is an intrinsic and useful property of zone plates.

  8. Linear phase distribution of acoustical vortices

    SciTech Connect (OSTI)

    Gao, Lu; Zheng, Haixiang [Key Laboratory of Optoelectronics of Jiangsu Province, School of Physics Science and Technology, Nanjing Normal University, 1 Wenyuan Road, Xianlin District, Nanjing 210023 (China); Ma, Qingyu, E-mail: maqingyu@njnu.edu.cn [Key Laboratory of Optoelectronics of Jiangsu Province, School of Physics Science and Technology, Nanjing Normal University, 1 Wenyuan Road, Xianlin District, Nanjing 210023 (China); Laboratory of Modern Acoustics of MOE, Nanjing University, Nanjing 210093 (China); Tu, Juan; Zhang, Dong [Laboratory of Modern Acoustics of MOE, Nanjing University, Nanjing 210093 (China)

    2014-07-14T23:59:59.000Z

    Linear phase distribution of phase-coded acoustical vortices was theoretically investigated based on the radiation theory of point source, and then confirmed by experimental measurements. With the proposed criterion of positive phase slope, the possibility of constructing linear circular phase distributions is demonstrated to be determined by source parameters. Improved phase linearity can be achieved at larger source number, lower frequency, smaller vortex radius, and/or longer axial distance. Good agreements are observed between numerical simulations and measurement results for circular phase distributions. The favorable results confirm the feasibility of precise phase control for acoustical vortices and suggest potential applications in particle manipulation.

  9. The Phase of Neutrino Oscillations

    E-Print Network [OSTI]

    C. Giunti

    2002-02-07T23:59:59.000Z

    Using an analogy with the well-known double-slit experiment, we show that the standard phase of neutrino oscillations is correct, refuting recent claims of a factor of two correction. We also improve the wave packet treatment of neutrino oscillations taking into account explicitly the finite coherence time of the detection process.

  10. Representation of noncommutative phase space

    E-Print Network [OSTI]

    Kang Li; Jianhua Wang; Chiyi Chen

    2005-08-16T23:59:59.000Z

    The representations of the algebra of coordinates and momenta of noncommutative phase space are given. We study, as an example, the harmonic oscillator in noncommutative space of any dimension. Finally the map of Sch$\\ddot{o}$dinger equation from noncommutative space to commutative space is obtained.

  11. Quantum phases and dynamics of geometric phase in a quantum spin chain system under linear quench

    E-Print Network [OSTI]

    Sujit Sarkar; B. Basu

    2011-09-11T23:59:59.000Z

    We study the quantum phases of anisotropic XY spin chain system in presence and absence of adiabatic quench. A connection between geometric phase and criticality is established from the dynamical behaviour of the geometric phase for a quench induced quantum phase transition in a quantum spin chain. We predict XX criticality associated with a sequence of non-contractible geometric phases.

  12. Final report on the public involvement process phase 1, Monitored Retrievable Storage Facility Feasibility Study

    SciTech Connect (OSTI)

    Moore, L.; Shanteau, C.

    1992-12-01T23:59:59.000Z

    This report summarizes the pubic involvement component of Phase 1 of the Monitored Retrievable Storage Facility (NM) Feasibility Study in San Juan County, Utah. Part of this summary includes background information on the federal effort to locate a voluntary site for temporary storage of nuclear waste, how San Juan County came to be involved, and a profile of the county. The heart of the report, however, summarizes the activities within the public involvement process, and the issues raised in those various forums. The authors have made every effort to reflect accurately and thoroughly all the concerns and suggestions expressed to us during the five month process. We hope that this report itself is a successful model of partnership with the citizens of the county -- the same kind of partnership the county is seeking to develop with its constituents. Finally, this report offers some suggestions to both county officials and residents alike. These suggestions concern how decision-making about the county's future can be done by a partnership of informed citizens and listening decision-makers. In the Appendix are materials relating to the public involvement process in San Juan County.

  13. Final report on the public involvement process phase 1, Monitored Retrievable Storage Facility Feasibility Study

    SciTech Connect (OSTI)

    Moore, L.; Shanteau, C.

    1992-12-01T23:59:59.000Z

    This report summarizes the pubic involvement component of Phase 1 of the Monitored Retrievable Storage Facility (NM) Feasibility Study in San Juan County, Utah. Part of this summary includes background information on the federal effort to locate a voluntary site for temporary storage of nuclear waste, how San Juan County came to be involved, and a profile of the county. The heart of the report, however, summarizes the activities within the public involvement process, and the issues raised in those various forums. The authors have made every effort to reflect accurately and thoroughly all the concerns and suggestions expressed to us during the five month process. We hope that this report itself is a successful model of partnership with the citizens of the county -- the same kind of partnership the county is seeking to develop with its constituents. Finally, this report offers some suggestions to both county officials and residents alike. These suggestions concern how decision-making about the county`s future can be done by a partnership of informed citizens and listening decision-makers. In the Appendix are materials relating to the public involvement process in San Juan County.

  14. Thermophysical properties of coexistent phases of plutonium

    SciTech Connect (OSTI)

    Freibert, Franz J [Los Alamos National Laboratory; Mitchell, Jeremy N [Los Alamos National Laboratory; Saleh, Tarik A [Los Alamos National Laboratory; Schwartz, Dan S [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Plutonium is the element with the greatest number of allotropic phases. Thermally induced transformations between these phases are typically characterized by thermal hysteresis and incomplete phase reversion. With Ga substitutal in the lattice, low symmetry phases are replaced by a higher symmetry phase. However, the low temperature Martensitic phase transformation ({delta} {yields} {alpha}{prime}) in Ga stabilized {delta}-phase Pu is characterized by a region of thermal hysteresis which can reach 200 C in extent. These regions of thermal hysteresis offer a unique opportunity to study thermodynamics in inhomogeneous systems of coexistent phases. The results of thermophysical properties measured for samples of inhomogeneous unalloyed and Ga alloyed Pu will be discussed and compared with similar measurements of their single phase constituents.

  15. Fiber bundle phase conjugate mirror

    DOE Patents [OSTI]

    Ward, Benjamin G.

    2012-05-01T23:59:59.000Z

    An improved method and apparatus for passively conjugating the phases of a distorted wavefronts resulting from optical phase mismatch between elements of a fiber laser array are disclosed. A method for passively conjugating a distorted wavefront comprises the steps of: multiplexing a plurality of probe fibers and a bundle pump fiber in a fiber bundle array; passing the multiplexed output from the fiber bundle array through a collimating lens and into one portion of a non-linear medium; passing the output from a pump collection fiber through a focusing lens and into another portion of the non-linear medium so that the output from the pump collection fiber mixes with the multiplexed output from the fiber bundle; adjusting one or more degrees of freedom of one or more of the fiber bundle array, the collimating lens, the focusing lens, the non-linear medium, or the pump collection fiber to produce a standing wave in the non-linear medium.

  16. Rheology of cholesteric blue phases

    E-Print Network [OSTI]

    A. Dupuis; D. Marenduzzo; E. Orlandini; J. M. Yeomans

    2006-05-11T23:59:59.000Z

    Blue phases of cholesteric liquid crystals offer a spectacular example of naturally occurring disclination line networks. Here we numerically solve the hydrodynamic equations of motion to investigate the response of three types of blue phases to an imposed Poiseuille flow. We show that shear forces bend and twist and can unzip the disclination lines. Under gentle forcing the network opposes the flow and the apparent viscosity is significantly higher than that of an isotropic liquid. With increased forcing we find strong shear thinning corresponding to the disruption of the defect network. As the viscosity starts to drop, the imposed flow sets the network into motion. Disclinations break-up and re-form with their neighbours in the flow direction. This gives rise to oscillations in the time-dependent measurement of the average stress.

  17. Data:3805ae9e-aff3-4262-9dcb-448410ce66a1 | Open Energy Information

    Open Energy Info (EERE)

    a renewable or recurring basis, including dedicated energy crops, trees grown for energy production, wood waste and wood residues, plants (including aquatic plants, grasses, and...

  18. Phase comparator apparatus and method

    DOE Patents [OSTI]

    Coffield, F.E.

    1985-02-01T23:59:59.000Z

    This invention finds especially useful application for interferometer measurements made in plasma fusion devices (e.g., for measuring the line integral of electron density in the plasma). Such interferometers typically use very high intermediate frequencies (e.g., on the order of 10 to 70 MHz) and therefore the phase comparison circuitry should be a high speed circuit with a linear transfer characteristic so as to accurately differentiate between small fractions of interference fringes.

  19. Final Report: Sensorpedia Phase 3

    SciTech Connect (OSTI)

    Gorman, Bryan L [ORNL; Resseguie, David R [ORNL

    2011-02-01T23:59:59.000Z

    This report is a summary of the Oak Ridge National Laboratory s (ORNL s) Phase 3 development of Sensorpedia, a sensor information sharing platform. Sensorpedia is ORNL s Wikipedia for Sensors. The overall goal of Sensorpedia is to enable global scale sensor information sharing for scientific research, national security and defense, public health and safety, emergency preparedness and response, and general community awareness and outreach.

  20. Ponderomotive phase plate for transmission electron microscopes

    DOE Patents [OSTI]

    Reed, Bryan W. (Livermore, CA)

    2012-07-10T23:59:59.000Z

    A ponderomotive phase plate system and method for controllably producing highly tunable phase contrast transfer functions in a transmission electron microscope (TEM) for high resolution and biological phase contrast imaging. The system and method includes a laser source and a beam transport system to produce a focused laser crossover as a phase plate, so that a ponderomotive potential of the focused laser crossover produces a scattering-angle-dependent phase shift in the electrons of the post-sample electron beam corresponding to a desired phase contrast transfer function.

  1. Confined Cubic Blue Phases under Shear

    E-Print Network [OSTI]

    O. Henrich; K. Stratford; D. Marenduzzo; P. V. Coveney; M. E. Cates

    2012-03-14T23:59:59.000Z

    We study the behaviour of confined cubic blue phases under shear flow via lattice Boltzmann simulations. We focus on the two experimentally observed phases, blue phase I and blue phase II. The disinclination network of blue phase II continuously breaks and reforms under shear, leading to an oscillatory stress response in time. The oscillations are only regular for very thin samples. For thicker samples, the shear leads to a "stick-slip" motion of part of the network along the vorticity direction. Blue phase I responds very differently: its defect network undergoes seemingly chaotic rearrangements under shear, irrespective of system size.

  2. Geometric Phase and Classical-Quantum Correspondence

    E-Print Network [OSTI]

    Indubala I. Satija; Radha Balakrishnan

    2004-03-05T23:59:59.000Z

    We study the geometric phase factors underlying the classical and the corresponding quantum dynamics of a driven nonlinear oscillator exhibiting chaotic dynamics. For the classical problem, we compute the geometric phase factors associated with the phase space trajectories using Frenet-Serret formulation. For the corresponding quantum problem, the geometric phase associated with the time evolution of the wave function is computed. Our studies suggest that the classical geometric phase may be related to the the difference in the quantum geometric phases between two neighboring eigenstates.

  3. Abstract Two-phase partitioning bioreactors (TPPBs) comprise an aqueous phase containing all non-carbon

    E-Print Network [OSTI]

    Daugulis, Andrew J.

    Abstract Two-phase partitioning bioreactors (TPPBs) comprise an aqueous phase containing all non developed to address this issue is two-phase par- titioning bioreactor (TPPB) technology which involves

  4. Classical potential describes martensitic phase transformations between the , , and titanium phases

    E-Print Network [OSTI]

    Wilkins, John

    Classical potential describes martensitic phase transformations between the , , and titanium phases of titanium that includes nucleation and growth requires an accurate classical potential. Optimization transformations. Molecular-dynamics simulations map out the pressure-temperature phase diagram of titanium

  5. Phase change material storage heater

    DOE Patents [OSTI]

    Goswami, D. Yogi (Gainesville, FL); Hsieh, Chung K. (Gainesville, FL); Jotshi, Chand K. (Gainesville, FL); Klausner, James F. (Gainesville, FL)

    1997-01-01T23:59:59.000Z

    A storage heater for storing heat and for heating a fluid, such as water, has an enclosure defining a chamber therein. The chamber has a lower portion and an upper portion with a heating element being disposed within the enclosure. A tube through which the fluid flows has an inlet and an outlet, both being disposed outside of the enclosure, and has a portion interconnecting the inlet and the outlet that passes through the enclosure. A densely packed bed of phase change material pellets is disposed within the enclosure and is surrounded by a viscous liquid, such as propylene glycol. The viscous liquid is in thermal communication with the heating element, the phase change material pellets, and the tube and transfers heat from the heating element to the pellets and from the pellets to the tube. The viscous fluid has a viscosity so that the frictional pressure drop of the fluid in contact with the phase change material pellets substantially reduces vertical thermal convection in the fluid. As the fluid flows through the tube heat is transferred from the viscous liquid to the fluid flowing through the tube, thereby heating the fluid.

  6. Phases of holographic d-wave superconductor

    E-Print Network [OSTI]

    Krikun, Alexander

    2015-01-01T23:59:59.000Z

    We study different phases in the holographic model of d-wave superconductor. These are described by solutions to the classical equations of motion found in different ansatze. Apart from the known homogeneous d-wave superconducting phase we find three new solutions. Two of them represent two distinct families of the spatially modulated solutions, which realize the charge density wave phases in the dual theory. The third one is the new homogeneous phase with nonzero anapole moment. These phases are relevant to the physics of cuprate high-Tc superconductor in pseudogap region. While the d-wave phase preserves translation, parity and time reversal symmetry, the striped phases break translations spontaneously. Parity and time-reversal are preserved when combined with discrete half-periodic shift of the wave. In anapole phase translation symmetry is preserved, but parity and time reversal are spontaneously broken. All of the considered solutions brake the global $U(1)$. Thermodynamical treatment shows that in the s...

  7. Studies of phase separable soluble polymers

    E-Print Network [OSTI]

    Furyk, Steven Michael

    2006-08-16T23:59:59.000Z

    (ethylene glycol) (PEG) oligomers were investigated as phase anchors for SCS palladacycle catalysts. The oligomeric PEG chains were sufficient to engender polar phase solubility in a heptane-DMA thermomorphic system. Microwave irradiation of these thermomorphic...

  8. CRAD, Engineering - Idaho Accelerated Retrieval Project Phase...

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

    Engineering - Idaho Accelerated Retrieval Project Phase II CRAD, Engineering - Idaho Accelerated Retrieval Project Phase II February 2006 A section of Appendix C to DOE G 226.1-2...

  9. Science Learning+: Phase 1 projects Science Learning+

    E-Print Network [OSTI]

    Rambaut, Andrew

    Science Learning+: Phase 1 projects Science Learning+ Phase 1 projects 2 December 2014 #12..............................................................................................................4 Youth access and equity in informal science learning: developing a research and practice agenda..................................................................................................5 Enhancing informal learning through citizen science..............................................6

  10. Vapor phase modifiers for oxidative coupling

    DOE Patents [OSTI]

    Warren, Barbara K. (Charleston, WV)

    1991-01-01T23:59:59.000Z

    Volatilized metal compounds retard vapor phase alkane conversion reactions in oxidative coupling processes that convert lower alkanes to higher hydrocarbons.

  11. Catalyst and method for aqueous phase reactions

    DOE Patents [OSTI]

    Elliott, Douglas C. (Richland, WA); Hart, Todd R. (Kennewick, WA)

    1999-01-01T23:59:59.000Z

    The present invention is a catalyst in the form of a plurality of porous particles wherein each particle is a support having nickel metal catalytic phase or reduced nickel deposited thereon in a first dispersed phase and an additional metal deposited onto the support in a second dispersed phase. The additional metal is effective in retarding or reducing agglomeration or sintering of the nickel metal catalytic phase without substantially affecting the catalytic activity, thereby increasing the life time of the catalyst.

  12. On the structure of blue phase III

    E-Print Network [OSTI]

    O. Henrich; K. Stratford; M. E. Cates; D. Marenduzzo

    2011-10-31T23:59:59.000Z

    We report large scale simulations of the blue phases of cholesteric liquid crystals. Our results suggest a structure for blue phase III, the blue fog, which has been the subject of a long debate in liquid crystal physics. We propose that blue phase III is an amorphous network of disclination lines, which is thermodynamically and kinetically stabilised over crystalline blue phases at intermediate chiralities}. This amorphous network becomes ordered under an applied electric field, as seen in experiments.

  13. A significant number of Iowa water treatment systems are dependent upon well-based water sources. Because of this, CIRAS efforts have been focused on the "Ground Water Levels" as reported by Iowa DNR. Currently, DNR officials are indicating that restricti

    E-Print Network [OSTI]

    Lin, Zhiqun

    A significant number of Iowa water treatment systems are dependent upon well-based water sources. Because of this, CIRAS efforts have been focused on the "Ground Water Levels" as reported by Iowa DNR. Currently, DNR officials are indicating that restrictions or loss of the water supply is not likely

  14. Centrifuge workers study. Phase II, completion report

    SciTech Connect (OSTI)

    Wooten, H.D.

    1994-09-01T23:59:59.000Z

    Phase II of the Centrifuge Workers Study was a follow-up to the Phase I efforts. The Phase I results had indicated a higher risk than expected among centrifuge workers for developing bladder cancer when compared with the risk in the general population for developing this same type of cancer. However, no specific agent could be identified as the causative agent for these bladder cancers. As the Phase II Report states, Phase I had been limited to workers who had the greatest potential for exposure to substances used in the centrifuge process. Phase II was designed to expand the survey to evaluate the health of all employees who had ever worked in Centrifuge Program Departments 1330-1339 but who had not been interviewed in Phase I. Employees in analytical laboratories and maintenance departments who provided support services for the Centrifuge Program were also included in Phase II. In December 1989, the Oak Ridge Associated Universities (ORAU), now known as Oak Ridge Institute for Science and Education (ORISE), was contracted to conduct a follow-up study (Phase II). Phase H of the Centrifuge Workers Study expanded the survey to include all former centrifuge workers who were not included in Phase I. ORISE was chosen because they had performed the Phase I tasks and summarized the corresponding survey data therefrom.

  15. Special Relativity in Quantum Phase Space

    E-Print Network [OSTI]

    Daniela Dragoman

    2008-03-06T23:59:59.000Z

    A phase space treatment of special relativity of quantum systems is developed. In this approach a quantum particle remains localized if subject to inertial transformations, the localization occurring in a finite phase space area. Unlike non-relativistic transformations, relativistic transformations generally distort the phase space distribution function, being equivalent to aberrations in optics.

  16. Phase Transition in Tensor Models

    E-Print Network [OSTI]

    Delepouve, Thibault

    2015-01-01T23:59:59.000Z

    Generalizing matrix models, tensor models generate dynamical triangulations in any dimension and support a $1/N$ expansion. Using the intermediate field representation we explicitly rewrite a quartic tensor model as a field theory for a fluctuation field around a vacuum state corresponding to the resummation of the entire leading order in $1/N$ (a resummation of the melonic family). We then prove that the critical regime in which the continuum limit in the sense of dynamical triangulations is reached is precisely a phase transition in the field theory sense for the fluctuation field.

  17. Solid phase microextraction field kit

    DOE Patents [OSTI]

    Nunes, Peter J.; Andresen, Brian D.

    2005-08-16T23:59:59.000Z

    A field kit for the collection, isolation and concentration of trace amounts of high explosives (HE), biological weapons (BW) and chemical weapons (CW) residues in air, soil, vegetation, swipe, and liquid samples. The field kit includes a number of Solid Phase Microextraction (SPME) fiber and syringe assemblies in a hermetically sealed transportation container or tubes which includes a sampling port, a number of extra SPME fiber and syringe assemblies, the fiber and syringe assemblies including a protective cap for the fiber, and an extractor for the protective cap, along with other items including spare parts, protective glove, and an instruction manual, all located in an airtight container.

  18. Three phase AC motor controller

    DOE Patents [OSTI]

    Vuckovich, Michael (Elizabeth, PA); Wright, Maynard K. (Bethel Park, PA); Burkett, John P. (South Huntington Township, Westmoreland County, PA)

    1984-03-20T23:59:59.000Z

    A motor controller for a three phase AC motor (10) which is adapted to operate bidirectionally from signals received either from a computer (30) or a manual control (32). The controller is comprised of digital logic circuit means which implement a forward and reverse command signal channel (27, 29) for the application of power through the forward and reverse power switching relays (16, 18, 20, 22). The digital logic elements are cross coupled to prevent activation of both channels simultaneously and each includes a plugging circuit (65, 67) for stopping the motor upon the removal of control signal applied to one of the two channels (27, 29) for a direction of rotation desired. Each plugging circuit (65, 67) includes a one-shot pulse signal generator (88, 102) which outputs a single pulse signal of predetermined pulsewidth which is adapted to inhibit further operation of the application of power in the channel which is being activated and to apply a reversal command signal to the other channel which provides a reversed phase application of power to the motor for a period defined by the pulse-width output of the one-shot signal generator to plug the motor (10) which will then be inoperative until another rotational command signal is applied to either of the two channels.

  19. ALMA : Fourier phase analysis made possible

    E-Print Network [OSTI]

    F. Levrier; E. Falgarone; F. Viallefond

    2007-04-18T23:59:59.000Z

    Fourier phases contain a vast amount of information about structure in direct space, that most statistical tools never tap into. We address ALMA's ability to detect and recover this information, using the probability distribution function (PDF) of phase increments, and the related concepts of phase entropy and phase structure quantity. We show that ALMA, with its high dynamical range, is definitely needed to achieve significant detection of phase structure, and that it will do so even in the presence of a fair amount of atmospheric phase noise. We also show that ALMA should be able to recover the actual "amount" of phase structure in the noise-free case, if multiple configurations are used.

  20. Collective phase description of oscillatory convection

    SciTech Connect (OSTI)

    Kawamura, Yoji, E-mail: ykawamura@jamstec.go.jp [Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Yokohama 236-0001 (Japan)] [Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Yokohama 236-0001 (Japan); Nakao, Hiroya [Department of Mechanical and Environmental Informatics, Tokyo Institute of Technology, Tokyo 152-8552 (Japan)] [Department of Mechanical and Environmental Informatics, Tokyo Institute of Technology, Tokyo 152-8552 (Japan)

    2013-12-15T23:59:59.000Z

    We formulate a theory for the collective phase description of oscillatory convection in Hele-Shaw cells. It enables us to describe the dynamics of the oscillatory convection by a single degree of freedom which we call the collective phase. The theory can be considered as a phase reduction method for limit-cycle solutions in infinite-dimensional dynamical systems, namely, stable time-periodic solutions to partial differential equations, representing the oscillatory convection. We derive the phase sensitivity function, which quantifies the phase response of the oscillatory convection to weak perturbations applied at each spatial point, and analyze the phase synchronization between two weakly coupled Hele-Shaw cells exhibiting oscillatory convection on the basis of the derived phase equations.

  1. Electric field controlled emulsion phase contactor

    DOE Patents [OSTI]

    Scott, T.C.

    1995-01-31T23:59:59.000Z

    A system is described for contacting liquid phases comprising a column for transporting a liquid phase contacting system, the column having upper and lower regions. The upper region has a nozzle for introducing a dispersed phase and means for applying thereto a vertically oriented high intensity pulsed electric field. This electric field allows improved flow rates while shattering the dispersed phase into many micro-droplets upon exiting the nozzle to form a dispersion within a continuous phase. The lower region employs means for applying to the dispersed phase a horizontally oriented high intensity pulsed electric field so that the dispersed phase undergoes continuous coalescence and redispersion while being urged from side to side as it progresses through the system, increasing greatly the mass transfer opportunity. 5 figs.

  2. Temperature-Induced Phase Separation in Chromium Films. | EMSL

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

    Temperature-Induced Phase Separation in Chromium Films. Temperature-Induced Phase Separation in Chromium Films. Abstract: Study of phase seperton at CrSi interface. Vacuum...

  3. Exotic superconducting phases of ultracold atom mixtures on triangular lattices

    E-Print Network [OSTI]

    Mathey, Ludwig; Tsai, Shan-Wen; Castro Neto, Antonio H.

    2007-01-01T23:59:59.000Z

    Exotic Superconducting Phases of Ultracold Atom Mixtures onlattice contain exotic superconducting phases. For spin-1/2competition between superconducting phases with di?erent

  4. Two phase titanium aluminide alloy

    DOE Patents [OSTI]

    Deevi, Seetharama C. (Midlothian, VA); Liu, C. T. (Oak Ridge, TN)

    2001-01-01T23:59:59.000Z

    A two-phase titanic aluminide alloy having a lamellar microstructure with little intercolony structures. The alloy can include fine particles such as boride particles at colony boundaries and/or grain boundary equiaxed structures. The alloy can include alloying additions such as .ltoreq.10 at % W, Nb and/or Mo. The alloy can be free of Cr, V, Mn, Cu and/or Ni and can include, in atomic %, 45 to 55% Ti, 40 to 50% Al, 1 to 5% Nb, 0.3 to 2% W, up to 1% Mo and 0.1 to 0.3% B. In weight %, the alloy can include 57 to 60% Ti, 30 to 32% Al, 4 to 9% Nb, up to 2% Mo, 2 to 8% W and 0.02 to 0.08% B.

  5. Phase equilibrium measurements on nine binary mixtures

    SciTech Connect (OSTI)

    Wilding, W.V. [Brigham Young Univ., Provo, UT (United States). Chemical Engineering Dept.] [Brigham Young Univ., Provo, UT (United States). Chemical Engineering Dept.; Giles, N.F.; Wilson, L.C. [Wiltec Research Co. Inc., Provo, UT (United States)] [Wiltec Research Co. Inc., Provo, UT (United States)

    1996-11-01T23:59:59.000Z

    Phase equilibrium measurements have been performed on nine binary mixtures. The PTx method was used to obtain vapor-liquid equilibrium data for the following systems at two temperatures each: (aminoethyl)piperazine + diethylenetriamine; 2-butoxyethyl acetate + 2-butoxyethanol; 2-methyl-2-propanol + 2-methylbutane; 2-methyl-2-propanol + 2-methyl-2-butene; methacrylonitrile + methanol; 1-chloro-1,1-difluoroethane + hydrogen chloride; 2-(hexyloxy)ethanol + ethylene glycol; butane + ammonia; propionaldehyde + butane. Equilibrium vapor and liquid phase compositions were derived form the PTx data using the Soave equation of state to represent the vapor phase and the Wilson or the NRTL activity coefficient model to represent the liquid phase. A large immiscibility region exists in the butane + ammonia system at 0 C. Therefore, separate vapor-liquid-liquid equilibrium measurements were performed on this system to more precisely determine the miscibility limits and the composition of the vapor phase in equilibrium with the two liquid phases.

  6. Flexoelectric switching in cholesteric blue phases

    E-Print Network [OSTI]

    A. Tiribocchi; M. E. Cates; G. Gonnella; D. Marenduzzo; E. Orlandini

    2013-03-25T23:59:59.000Z

    We present computer simulations of the response of a flexoelectric blue phase network, either in bulk or under confinement, to an applied field. We find a transition in the bulk between the blue phase I disclination network and a parallel array of disclinations along the direction of the applied field. Upon switching off the field, the system is unable to reconstruct the original blue phase but gets stuck in a metastable phase. Blue phase II is comparatively much less affected by the field. In confined samples, the anchoring at the walls and the geometry of the device lead to the stabilisation of further structures, including field-aligned disclination loops, splayed nematic patterns, and yet more metastable states. Our results are relevant to the understanding of the switching dynamics for a class of new, "superstable", blue phases which are composed of bimesogenic liquid crystals, as these materials combine anomalously large flexoelectric coefficients, and low or near-zero dielectric anisotropy.

  7. Large $N$ Phases of Chiral QCD_2

    E-Print Network [OSTI]

    M. Crescimanno; W. Taylor

    1994-08-21T23:59:59.000Z

    A matrix model is constructed which describes a chiral version of the large $N$ $U(N)$ gauge theory on a two-dimensional sphere of area $A$. This theory has three separate phases. The large area phase describes the associated chiral string theory. An exact expression for the free energy in the large area phase is used to derive a remarkably simple formula for the number of topologically inequivalent covering maps of a sphere with fixed branch points and degree $n$.

  8. The Berry phase in inflationary cosmology

    E-Print Network [OSTI]

    Barun Kumar Pal; Supratik Pal; B. Basu

    2013-04-25T23:59:59.000Z

    We derive an analogue of the Berry phase associated with inflationary cosmological perturbations of quantum mechanical origin by obtaining the corresponding wavefunction. We have further shown that cosmological Berry phase can be completely envisioned through the observable parameters, viz. spectral indices. Finally, physical significance of this phase is discussed from the point of view of theoretical and observational aspects with some possible consequences of this quantity in inflationary cosmology.

  9. Environmental Effects on the Geometric Phase

    E-Print Network [OSTI]

    A. C. Günhan; S. Turgut; N. K. Pak

    2009-12-25T23:59:59.000Z

    The behavior of the geometric phase gained by a single spin-1/2 nucleus immersed into a thermal or a squeezed environment is investigated. Both the time dependence of the phase and its value at infinity are examined against several physical parameters. It is observed that for some intermediate ranges of the temperature and the coupling strength, the presence of squeezing enhances the geometric phase.

  10. Phase transformations in welded supermartensitic stainless steels

    E-Print Network [OSTI]

    Carrouge, Dominique

    - ferrite phase, and the development of a model to facilitate the choice of a suitable post-weld heat-treatment temperature. The microstructural examination of a variety of welds revealed the presence of retained ?-ferrite in dual-phase and grain... -coarsened HAZ regions. Under normal welding conditions, ?-ferrite retention was more pronounced in dual-phase HAZ and in molybdenum containing alloys. However, in multipass welds, ?-ferrite distribution was non-uniform as a result of reheating effects. A number...

  11. Stationary phase deposition based on onium salts

    DOE Patents [OSTI]

    Wheeler, David R. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM); Dirk, Shawn M. (Albuquerque, NM); Trudell, Daniel E. (Albuquerque, NM)

    2008-01-01T23:59:59.000Z

    Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon based columns, especially microfabricated metal columns. Non-silicon microfabricated columns may be manufactured and processed at a fraction of the cost of silicon-based columns. In addition, the method can be used to phase-coat conventional capillary columns or silicon-based microfabricated columns.

  12. Communication: Spectroscopic phase and lineshapes in high-resolution...

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

    Communication: Spectroscopic phase and lineshapes in high-resolution broadband sum frequency vibrational spectroscopy: Resolving Communication: Spectroscopic phase and lineshapes...

  13. Vapor phase modifiers for oxidative coupling

    DOE Patents [OSTI]

    Warren, B.K.

    1991-12-17T23:59:59.000Z

    Volatilized metal compounds are described which are capable of retarding vapor phase alkane conversion reactions in oxidative coupling processes that convert lower alkanes to higher hydrocarbons.

  14. Regional Carbon Sequestration Partnerships Validation Phase ...

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

    Regional Carbon Sequestration Partnerships Validation Phase Core Storage R&D Storage Infrastructure Strategic Program Support NATCARBAtlas Program Plan Project Portfolio...

  15. Incommensurate Structure of Phosphorus Phase IV

    SciTech Connect (OSTI)

    Fujihisa, Hiroshi; Gotoh, Yoshito; Yamawaki, Hiroshi; Sakashita, Mami; Takeya, Satoshi; Honda, Kazumasa [National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan); Akahama, Yuichi; Kawamura, Haruki [Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako-gun, Hyogo 678-1297 (Japan); Ohishi, Yasuo [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Mikazuki, Sayo-gun, Hyogo 679-5198 (Japan)

    2007-04-27T23:59:59.000Z

    There are six known phases for phosphorus at room temperature under high pressure. Only the structure of phase IV, which exists from 107 GPa to 137 GPa, remains unsolved. We performed a powder x-ray diffraction experiment and a Rietveld analysis and successfully determined its structure to be an incommensurately modulated structure by only 1 site of atomic position. High-pressure phases of halogens and chalcogens have previously been shown to have a similar modulated structure; however, phosphorus phase IV is different from them and was shown to be the third case.

  16. Canby Cascaded Geothermal Project Phase 1 Feasibility

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

    of 50-kW in a community that will use warm discharge water for an existing district heating system, greenhouse operations and aquaculture development. - Timeline * Phase 1...

  17. Metastable Superconducting Cuprate Phase - Energy Innovation...

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

    Electricity Transmission Find More Like This Return to Search Metastable Superconducting Cuprate Phase Brookhaven National Laboratory Contact BNL About This Technology...

  18. Double acting stirling engine phase control

    DOE Patents [OSTI]

    Berchowitz, David M. (Scotia, NY)

    1983-01-01T23:59:59.000Z

    A mechanical device for effecting a phase change between the expansion and compression volumes of a double-acting Stirling engine uses helical elements which produce opposite rotation of a pair of crankpins when a control rod is moved, so the phase between two pairs of pistons is changed by +.psi. and the phase between the other two pairs of pistons is changed by -.psi.. The phase can change beyond .psi.=90.degree. at which regenerative braking and then reversal of engine rotation occurs.

  19. Geometric phases in a scattering process

    E-Print Network [OSTI]

    H. D. Liu; X. X. Yi

    2011-03-19T23:59:59.000Z

    The study of geometric phase in quantum mechanics has so far be confined to discrete (or continuous) spectra and trace preserving evolutions. Consider only the transmission channel, a scattering process with internal degrees of freedom is neither a discrete spectrum problem nor a trace preserving process. We explore the geometric phase in a scattering process taking only the transmission process into account. We find that the geometric phase can be calculated by the some method as in an unitary evolution. The interference visibility depends on the transmission amplitude. The dependence of the geometric phase on the barrier strength and the spin-spin coupling constant is also presented and discussed.

  20. Liquid-phase chromatography detector

    DOE Patents [OSTI]

    Voigtman, E.G.; Winefordner, J.D.; Jurgensen, A.R.

    1983-11-08T23:59:59.000Z

    A liquid-phase chromatography detector comprises a flow cell having an inlet tubular conduit for receiving a liquid chromatographic effluent and discharging it as a flowing columnar stream onto a vertically adjustable receiving surface spaced apart from and located vertically below and in close proximity to the discharge end of the tubular conduit; a receiver adapted to receive liquid overflowing from the receiving surface; an exit conduit for continuously removing liquid from the receiver; a light source for focusing fluorescence-producing light pulses on the flowing columnar stream as it passes from the outlet of the conduit to the receiving surface and a fluorescence detector to detect the produced fluorescence; a source of light pulse for producing acoustic waves in the columnar stream as it passes from the conduit outlet to the receiving surface; and a piezoelectric transducer adapted to detect those waves; and a source of bias voltage applied to the inlet tubular conduit and adapted to produce ionization of the liquid flowing through the flow cell so as to produce photocurrents therein and an electrical system to detect and record the photocurrents. This system is useful in separating and detecting individual chemical compounds from mixtures thereof. 5 figs.

  1. Transient liquid phase ceramic bonding

    DOE Patents [OSTI]

    Glaeser, Andreas M. (Berkeley, CA)

    1994-01-01T23:59:59.000Z

    Ceramics are joined to themselves or to metals using a transient liquid phase method employing three layers, one of which is a refractory metal, ceramic or alloy. The refractory layer is placed between two metal layers, each of which has a lower melting point than the refractory layer. The three layers are pressed between the two articles to be bonded to form an assembly. The assembly is heated to a bonding temperature at which the refractory layer remains solid, but the two metal layers melt to form a liquid. The refractory layer reacts with the surrounding liquid and a single solid bonding layer is eventually formed. The layers may be designed to react completely with each other and form refractory intermetallic bonding layers. Impurities incorporated into the refractory metal may react with the metal layers to form refractory compounds. Another method for joining ceramic articles employs a ceramic interlayer sandwiched between two metal layers. In alternative embodiments, the metal layers may include sublayers. A method is also provided for joining two ceramic articles using a single interlayer. An alternate bonding method provides a refractory-metal oxide interlayer placed adjacent to a strong oxide former. Aluminum or aluminum alloys are joined together using metal interlayers.

  2. Phase Space Navigator: Towards Automating Control Synthesis in Phase Spaces for Nonlinear Control Systems

    E-Print Network [OSTI]

    Zhao, Feng

    1991-04-01T23:59:59.000Z

    We develop a novel autonomous control synthesis strategy called Phase Space Navigator for the automatic synthesis of nonlinear control systems. The Phase Space Navigator generates global control laws by synthesizing ...

  3. On-demand generation of aqueous two-phase microdroplets with reversible phase transitions

    SciTech Connect (OSTI)

    Boreyko, Jonathan B [ORNL; Mruetusatorn, Prachya [ORNL; Retterer, Scott T [ORNL; Collier, Pat [ORNL

    2013-01-01T23:59:59.000Z

    Aqueous two-phase systems contained entirely within microdroplets enable a bottom-up approach to mimicking the dynamic microcompartmentation of biomaterial that naturally occurs within the cytoplasm of cells. Here, we demonstrate the on-demand generation of femtolitre aqueous two-phase droplets within a microfluidic oil channel. Gated pressure pulses were used to generate individual, stationary two-phase microdroplets with a well-defined time zero for carrying out controlled and sequential phase transformations over time. Reversible phase transitions between single-phase, two-phase, and core-shell microgel states were obtained via evaporation-induced dehydration and on-demand water rehydration. In contrast to other microfluidic aqueous two-phase droplets, which require continuous flows and high-frequency droplet formation, our system enables the controlled isolation and reversible transformation of a single microdroplet and is expected to be useful for future studies in dynamic microcompartmentation and affinity partitioning.

  4. Differential-phase-shift quantum key distribution with phase modulation to combat sequential attacks

    SciTech Connect (OSTI)

    Kawahara, Hiroki; Oka, Toru; Inoue, Kyo [Osaka University, Osaka 565-0871 (Japan)

    2011-11-15T23:59:59.000Z

    Phase-modulated differential-phase-shift (DPS) quantum key distribution (QKD) is presented for combating sequential attacks that most severely restrict the DPS-QKD system distance. Slow phase modulation imposed onto the DPS signal obstructs the optimum unambiguous state discrimination measurement conducted in the sequential attack and improves the QKD distance as a result. The condition with which the phase modulation does not degrade the DPS-QKD system performance is also described.

  5. Analysis and design of some new single phase to three phase static converters 

    E-Print Network [OSTI]

    Rahman, Ashek

    1991-01-01T23:59:59.000Z

    ANALYSIS AND DESIGN OF SOME NEW SINGLE PHASE TO THREE PHASE STATIC CONVERTERS A Thesis by ASHEK RAHMAN Submitted to the Oflice of Graduate Studies of Texas ARM I. 'niversrty in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1991 Major Subject: Electrical Engineering ANAL''SIS AND DESIGN OF SOME NEW SINGLE PHASE TO THREE PHASE STATIC CONVERTERS A Thesis by ASHEK RAHMAN Approved as to style and content by: P. Enjett (Char of Committeel M...

  6. Proceedings: EPRI Second Phased Array Inspection Seminar

    SciTech Connect (OSTI)

    None

    2001-11-01T23:59:59.000Z

    The Second EPRI Phased Array Inspection Seminar focused on industrial applications of phased array technology that have been achieved to date or are planned for the near future. Presentations were made by developers of inspection techniques, inspection services vendors, and utility personnel who have performed inspections using arrays.

  7. Gas-Phase Spectroscopy of Biomolecular

    E-Print Network [OSTI]

    de Vries, Mattanjah S.

    Gas-Phase Spectroscopy of Biomolecular Building Blocks Mattanjah S. de Vries1 and Pavel Hobza2 1, REMPI, computational chemistry, spectral hole burning, jet cooling Abstract Gas-phase spectroscopy lends. In recent years, we have seen enormous progress in the study of biomolecular building blocks in the gas

  8. Iterative Algorithms for Ptychographic Phase Retrieval

    SciTech Connect (OSTI)

    Yang, Chao; Qian, Jianliang; Schirotzek, Andre; Maia, Filipe; Marchesini, Stefano

    2011-05-03T23:59:59.000Z

    Ptychography promises diffraction limited resolution without the need for high resolution lenses. To achieve high resolution one has to solve the phase problem for many partially overlapping frames. Here we review some of the existing methods for solving ptychographic phase retrieval problem from a numerical analysis point of view, and propose alternative methods based on numerical optimization.

  9. Phase Space Constraints on Neutrino Luminosities

    E-Print Network [OSTI]

    C. Sivaram; Kenath Arun; Samartha C A

    2007-06-29T23:59:59.000Z

    While the importance of phase space constraints for gravitational clustering of neutrinos (which are fermions) is well recognized, the explicit use of such constraints to limit neutrino emission from ultra energetic sources has not been stressed. Special and general relativistic phase space constraints are shown to limit neutrino luminosities in compact sources in various situations.

  10. DNA: structure, dense phases, charges, interactions

    E-Print Network [OSTI]

    Potsdam, Universität

    DNA: structure, dense phases, charges, interactions #12;Outline 1. DNA: structure, charges, dense phases 2. Counterion and DNA condensation 3. ES DNA-DNA interactions 4. DNA toroidal structures 5. Interactions of real DNA helices 6. DNA-DNA ES recognition 7. DNA melting in aggregates 8. Azimuthal

  11. On a phase field model for solid-liquid phase transitions

    E-Print Network [OSTI]

    distinct phases. This is the case for solid-liquid mix- tures (e.g. ice-water or alloys duringOn a phase field model for solid-liquid phase transitions S. Benzoni-Gavage , L. Chupin , D. Jamet 3.2 Back to physical variables . . . . . . . . . . . . . . . . . . . . 16 4 Well-posedness 17 4

  12. Dynamics of geometric phase in the adiabatic limit of quantum phase transition

    E-Print Network [OSTI]

    B. Basu

    2010-05-10T23:59:59.000Z

    The geometric phase associated with a many body ground state exhibits a signature of quantum phase transition. In this context, we have studied the behaviour of the geometric phase during a linear quench caused by a gradual turning off of the magnetic field interacting with a spin chain.

  13. Phase transitions in ZN gauge theory and twisted ZN topological phases

    E-Print Network [OSTI]

    Barkeshli, Maissam

    We find a series of non-Abelian topological phases that are separated from the deconfined phase of Z[subscript N] gauge theory by a continuous quantum phase transition. These non-Abelian states, which we refer to as the ...

  14. 1McNEILL: JITTER IN PHASE-LOCKED LOOPS Jitter in Phase-Locked Loops

    E-Print Network [OSTI]

    McNeill, John A.

    1McNEILL: JITTER IN PHASE-LOCKED LOOPS Jitter in Phase-Locked Loops John McNeill Worcester Polytechnic Institute #12;2McNEILL: JITTER IN PHASE-LOCKED LOOPS Course Overview · Basic Theory · Applications · Measurement Techniques · Test Issues · Design Measurement Techniques Design Tools #12;3McNEILL: JITTER

  15. Topological phases with long-range interactions

    E-Print Network [OSTI]

    Gong, Zhe-Xuan; Hu, Anzi; Wall, Michael L; Foss-Feig, Michael; Gorshkov, Alexey V

    2015-01-01T23:59:59.000Z

    Topological phases of matter are primarily studied in quantum many-body systems with short-range interactions. Whether various topological phases can survive in the presence of long-range interactions, however, is largely unknown. Here we show that a paradigmatic example of a symmetry-protected topological phase, the Haldane phase of an antiferromagnetic spin-1 chain, surprisingly remains intact in the presence of arbitrarily slowly decaying power-law interactions. The influence of long-range interactions on the topological order is largely quantitative, and we expect similar results for more general systems. Our conclusions are based on large-scale matrix-product-state simulations and two complementary effective-field-theory calculations. The striking agreement between the numerical and analytical results rules out finite-size effects. The topological phase considered here should be experimentally observable in a recently developed trapped-ion quantum simulator.

  16. Topological phases with long-range interactions

    E-Print Network [OSTI]

    Zhe-Xuan Gong; Mohammad F. Maghrebi; Anzi Hu; Michael L. Wall; Michael Foss-Feig; Alexey V. Gorshkov

    2015-05-12T23:59:59.000Z

    Topological phases of matter are primarily studied in quantum many-body systems with short-range interactions. Whether various topological phases can survive in the presence of long-range interactions, however, is largely unknown. Here we show that a paradigmatic example of a symmetry-protected topological phase, the Haldane phase of an antiferromagnetic spin-1 chain, surprisingly remains intact in the presence of arbitrarily slowly decaying power-law interactions. The influence of long-range interactions on the topological order is largely quantitative, and we expect similar results for more general systems. Our conclusions are based on large-scale matrix-product-state simulations and two complementary effective-field-theory calculations. The striking agreement between the numerical and analytical results rules out finite-size effects. The topological phase considered here should be experimentally observable in a recently developed trapped-ion quantum simulator.

  17. A Phase-Field Model for Phase Transformations in Glass-Forming Alloys

    SciTech Connect (OSTI)

    Wang, Tao; Napolitano, Ralph E.

    2012-03-24T23:59:59.000Z

    A phase-field model is proposed for phase transformations in glass-forming alloys. The glass transition is introduced as a structural relaxation, and the competition between the glass and crystalline phases is investigated. The simulations are performed for Cu-Zr alloys, employing thermodynamic and kinetic parameters derived from reported thermodynamic modeling and molecular dynamics simulation results,[1–3] respectively. Four distinct phase fields are treated with a multi-phase-field approach, representing the liquid/glass, Cu10Zr7, CuZr, and CuZr2 phases. In addition, a continuum-field method is applied to the liquid to accommodate the liquid–glass transformation. The combined phase-field approach is used to investigate the glass formation tendency, and critical cooling rates are estimated and compared with the reported experimental values.

  18. The Many Phases of Holographic Superfluids

    E-Print Network [OSTI]

    Daniel Arean; Pallab Basu; Chethan Krishnan

    2010-08-04T23:59:59.000Z

    We investigate holographic superfluids in AdS_{d+1} with d=3,4 in the non-backreacted approximation for various masses of the scalar field. In d=3 the phase structure is universal for all the masses that we consider: the critical temperature decreases as the superfluid velocity increases, and as it is cranked high enough, the order of the phase transition changes from second to first. Surprisingly, in d=4 we find that the phase structure is more intricate. For sufficiently high mass, there is always a second order phase transition to the normal phase, no matter how high the superfluid velocity. For some parameters, as we lower the temperature, this transition happens before a first order transition to a new superconducting phase. Across this first order transition, the gap in the transverse conductivity jumps from almost zero to about half its maximum value. We also introduce a double scaling limit where we can study the phase transitions (semi-)analytically in the large velocity limit. The results corroborate and complement our numerical results. In d=4, this approach has the virtue of being fully analytically tractable.

  19. Numerical Results for the Blue Phases

    E-Print Network [OSTI]

    G. P. Alexander; J. M. Yeomans

    2009-06-04T23:59:59.000Z

    We review recent numerical work investigating the equilibrium phase diagram, and the dynamics, of the cholesteric blue phases. In equilibrium numerical results confirm the predictions of the classic analytical theories, and extend them to incorporate different values of the elastic constants, or the effects of an applied electric field. There is a striking increase in the stability of blue phase I in systems where the cholesteric undergoes helical sense inversion, and the anomalous electrostriction observed in this phase is reproduced. Solving the equations of motion allows us to present results for the phase transition kinetics of blue phase I under dielectric or flexoelectric coupling to an applied electric field. We also present simulations of the blue phases in a flow field, showing how the disclination network acts to oppose the flow. The results are based on the Landau-de Gennes exapnsion of the liquid crystal free energy: that such a simple and elegant theory can predict such complex and subtle physical behaviour is remarkable.

  20. Fourier phase analysis in radio-interferometry

    E-Print Network [OSTI]

    Francois Levrier; Edith Falgarone; Francois Viallefond

    2006-06-09T23:59:59.000Z

    Most statistical tools used to characterize the complex structures of the interstellar medium can be related to the power spectrum, and therefore to the Fourier amplitudes of the observed fields. To tap into the vast amount of information contained in the Fourier phases, one may consider the probability distribution function (PDF) of phase increments, and the related concepts of phase entropy and phase structure quantity. We use these ideas here with the purpose of assessing the ability of radio-interferometers to detect and recover this information. By comparing current arrays such as the VLA and Plateau de Bure to the future ALMA instrument, we show that the latter is definitely needed to achieve significant detection of phase structure, and that it will do so even in the presence of a fair amount of atmospheric phase fluctuations. We also show that ALMA will be able to recover the actual "amount'' of phase structure in the noise-free case, if multiple configurations are used.

  1. Electron concentration and phase stability in NbCr2-based Laves phase alloys

    SciTech Connect (OSTI)

    Zhu, J.H.; Liaw, P.K. [Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; Liu, C.T. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.

    1997-05-12T23:59:59.000Z

    Phase stability in NbCr{sub 2}-based transition-metal Laves phases was studied, based on the data reported for binary X-Cr, Nb-X, and ternary Nb-Cr-X phase diagrams. It was shown that when the atomic size ratios are kept identical, the average electron concentration factor, e/a, is the dominating factor in controlling the phase stability of NbCr{sub 2}-based transition-metal Laves phases. The e/a ratios for different Laves polytypes were determined as followed: with e/a < 5.76, the C15 structure is stabilized; at an e/a range of 5.88--7.53, the C14 structure is stabilized; with e/a > 7.65, the C15 structure is stabilized again. A further increase in the electron concentration factor (e/a > 8) leads to the disordering of the alloy. The electron concentration effect on the phase stability of Mg-based Laves phases and transition-metal A{sub 3}B intermetallic compounds is also reviewed and compared with the present observations in transition-metal Laves phases. In order to verify the e/a/phase stability relationship experimentally, additions of Cu (with e/a = 11) were selected to replace Cr in the NbCr{sub 2} Laves phase. Experimental results for the ternary Nb-Cr-Cu system are reported and discussed in terms of the correlation between the e/a ratio and phase stability in NbCr{sub 2}-based Laves phases. A new phase was found, which has an average composition of Nb-47Cr-3Cu. Within the solubility limit, the electron concentration and phase stability relationship is obeyed in the Nb-Cr-Cu system.

  2. Official Use Only Date Received: __________ By: __________

    E-Print Network [OSTI]

    Walker, Matthew P.

    shipping, handling, or service contracts. Total cost of equipment requested:_____________ (Not to exceed $1

  3. 1 Official Use Only Northwest Overgeneration

    E-Print Network [OSTI]

    to reduce generation. A last resort in such situations is to temporarily curtail wind generation to reduce on wind generation, river flows, load and other power system conditions under a range of scenarios risks. When generation exceeds regional loads, the difference must be exported, reduced, turned off or

  4. Energy Department Officially Dedicates New National Security...

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

    News Media Contact 202-586-4940 KANSAS CITY, MO - Secretary of Energy Ernest Moniz was joined by the Administrator of the National Nuclear Security Administration (NNSA), Lt. Gen....

  5. Guidance for Procurement Officials | Department of Energy

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

    Acquisition Guidance Acquisition Guide Contracting for Support Services Department of Energy Acquisition System - A Guide for Executives Ethics in Procurement Lobbying Brochure...

  6. National Association of State Energy Officials

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

    Energy Loan Fund (SELF) database, which tracks energy loan programs and includes key statistics such as funding source, fund size, and program purpose (see http:naseo.org...

  7. CIFOLC Official Certificates What are they?

    E-Print Network [OSTI]

    Geffner, Hector

    examination period will take place in December 2011 at the UPF's Ciutadella Campus. Date: Friday December 2 Catalan language training with the PEI via the Spanish and Catalan Program, the UPF Institutional Program? UPF Members CIFOLC Basic level (CEFR A2), Elementary level (CEFR B1) and Intermediate level (CEFR B2

  8. April 14, 2010 Official and Approved Minutes

    E-Print Network [OSTI]

    O'Toole, Alice J.

    out lights and recycling paper, plastic and cans. One change that has been made is that the University is now using 100% of our landscape waste as mulch. It was also noted that the new Student Services

  9. Google official suggests science, engineering advances vital...

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

    to produce electricity. "I really think we should think globally as to how to get economic development in regions that don't have access to energy the way we do," said...

  10. Ads by Goooooogle 2007 Ford Official Site

    E-Print Network [OSTI]

    Gosselin, Frédéric

    Research Facilities Design www.rfd.com A UNH pigeon contemplates the shape of an object on a video monitor in honeybees has led to the development of flying robots and unmanned helicopters," the researchers say. So

  11. Official Use Only Training | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagementOPAM PolicyOf EnvironmentalGuide, JulyIssue 15Issue

  12. POLICY GUIDANCE MEMORANDUM #26 Official Worksite Determinations |

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2:Introduction toManagementOPAM5 Accretion-of-Duties POLICY GUIDANCEProgramof Energy

  13. Official Foreign Travel (Informational Purposes Only)

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2012-02-24T23:59:59.000Z

    This draft directive is scheduled for review by the Directives Review Board on 3/1/12. Any questions, comments, or concerns with the proposed directive can be sent to your Directives Review Board representative (https://www.directives.doe.gov/references/directives-review-board-members) through your Directives Point of Contact (https://www.directives.doe.gov/development-review/dpc-corner/2010-10-1.pdf).

  14. Hanford Tours for Governmental Officials - Hanford Site

    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 Science (SC) EnvironmentalGyroSolé(tm) Harmonicbet When yourecoveryG - SSC Data Summary

  15. GC GUIDANCE ON MEETINGS WITH UNION OFFICIALS

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: FinalOffers3.pdf0-45.pdf0 Budget Fossil EnergyFull Text ManagementDOE REALGC

  16. Guidance for Procurement Officials | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPowerHome| Department ofFormsDepartmentfor Procurement

  17. MEETINGS WITH UNION OFFICIALS | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas »ofMarketing |Prepare For26, 2015 MEETING MATERIALS:

  18. Shoshone-Bannock Tribes Officials Visit WIPP

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9 SeptemberSettingUncertainties in the3Arie Shoshani!

  19. Authorizing Official (AO) | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName4ServicesTribal RenewableAustin Energy(AO)

  20. Authorizing Official Designated Representative (AODR) | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName4ServicesTribal RenewableAustin

  1. Senior DOE Officials Return to WIPP

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz is TakingDepartment ofDepartmentSeminars11, 2015

  2. Gravitationally Induced Neutrino-Oscillation Phases

    E-Print Network [OSTI]

    D. V. Ahluwalia; C. Burgard

    2004-01-22T23:59:59.000Z

    In this essay, we introduce a new effect of gravitationally induced quantum mechanical phases in neutrino oscillations. These phases arise from an hitherto unexplored interplay of gravitation and the principle of the linear superposition of quantum mechanics. In the neighborhood of a 1.4 solar-mass neutron star, gravitationally induced quantum mechanical phases are roughly 20% of their kinematical counterparts. When this information is coupled with the mass square differences implied by the existing neutrino-oscillation data we find that the new effect may have profound consequences for type-II supernova evolution.

  3. Quantum gravitational optics: the induced phase

    E-Print Network [OSTI]

    N. Ahmadi; M. Nouri-Zonoz

    2007-03-26T23:59:59.000Z

    The geometrical approximation of the extended Maxwell equation in curved spacetime incorporating interactions induced by the vacuum polarization effects is considered. Taking into account these QED interactions and employing the analogy between eikonal equation in geometrical optics and Hamilton-Jacobi equation for the particle motion, we study the phase structure of the modified theory. There is a complicated, local induced phase which is believed to be responsible for the modification of the classical picture of light ray. The main features of QGO could be obtained through the study of this induced phase. We discuss initial principles in conventional and modified geometrical optics and compare the results.

  4. Chiral Magnetic Effect and Chiral Phase Transition

    E-Print Network [OSTI]

    Wei-jie Fu; Yu-xin Liu; Yue-liang Wu

    2010-02-02T23:59:59.000Z

    We study the influence of the chiral phase transition on the chiral magnetic effect. The azimuthal charge-particle correlations as functions of the temperature are calculated. It is found that there is a pronounced cusp in the correlations as the temperature reaches its critical value for the QCD phase transition. It is predicted that there will be a drastic suppression of the charge-particle correlations as the collision energy in RHIC decreases to below a critical value. We show then the azimuthal charge-particle correlations can be the signal to identify the occurrence of the QCD phase transitions in RHIC energy scan experiments.

  5. Laser Phase Errors in Seeded FELs

    SciTech Connect (OSTI)

    Ratner, D.; Fry, A.; Stupakov, G.; White, W.; /SLAC

    2012-03-28T23:59:59.000Z

    Harmonic seeding of free electron lasers has attracted significant attention from the promise of transform-limited pulses in the soft X-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.

  6. Global optimization for the phase stability problem

    SciTech Connect (OSTI)

    Floudas, C.; McDonald, C.

    1994-12-31T23:59:59.000Z

    The Gibbs tangent plane criterion is an important tool in determining the quality of obtained solutions to the phase and chemical equilibrium problem. The ability to determine if a postulated solution is thermodynamically stable is very useful in the search for the equilibrium solution. In this work simpler formulations are presented for the phase stability problem where non-ideal liquid phases are modeled using the NRTL and UNIQUAC models. It is shown how the global minimum of the tangent plane distance function can be obtained. Computational results demonstrate the efficiency of the proposed global optimization algorithms.

  7. Bistable defect structures in blue phase devices

    E-Print Network [OSTI]

    A. Tiribocchi; G. Gonnella; D. Marenduzzo; E. Orlandini; F. Salvadore

    2011-10-28T23:59:59.000Z

    Blue phases (BPs) are liquid crystals made up by networks of defects, or disclination lines. While existing phase diagrams show a striking variety of competing metastable topologies for these networks, very little is known as to how to kinetically reach a target structure, or how to switch from one to the other, which is of paramount importance for devices. We theoretically identify two confined blue phase I systems in which by applying an appropriate series of electric field it is possible to select one of two bistable defect patterns. Our results may be used to realise new generation and fast switching energy-saving bistable devices in ultrathin surface treated BPI wafers.

  8. Phase Change Memory An Architecture and Systems Perspective

    E-Print Network [OSTI]

    Lee, Benjamin C.

    #12;Phase Change Memory Store data within phase change material [Ovshinsky68] Set phase via currentPhase Change Memory An Architecture and Systems Perspective Benjamin Lee Computer Architecture lifetime 1 B.Lee et al. "Architecting phase change memory as a scalable DRAM alternative." ISCA-36

  9. The nucleon phase hypothesis of binary fission

    E-Print Network [OSTI]

    G. Mouze; S. Hachem; C. Ythier

    2010-06-29T23:59:59.000Z

    The mass distribution of fission fragments of actinide and superheavy nuclei can be explained if a new state of nuclear matter, a nucleon phase, is created in any fission event.

  10. Nuclear Concrete Materials Database Phase I Development

    SciTech Connect (OSTI)

    Ren, Weiju [ORNL; Naus, Dan J [ORNL

    2012-05-01T23:59:59.000Z

    The FY 2011 accomplishments in Phase I development of the Nuclear Concrete Materials Database to support the Light Water Reactor Sustainability Program are summarized. The database has been developed using the ORNL materials database infrastructure established for the Gen IV Materials Handbook to achieve cost reduction and development efficiency. In this Phase I development, the database has been successfully designed and constructed to manage documents in the Portable Document Format generated from the Structural Materials Handbook that contains nuclear concrete materials data and related information. The completion of the Phase I database has established a solid foundation for Phase II development, in which a digital database will be designed and constructed to manage nuclear concrete materials data in various digitized formats to facilitate electronic and mathematical processing for analysis, modeling, and design applications.

  11. Synthesis of alloys with controlled phase structure

    DOE Patents [OSTI]

    Guthrie, S.E.; Thomas, G.J.; Bauer, W.; Yang, N.Y.C.

    1999-04-20T23:59:59.000Z

    A method is described for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures {approx_equal}300 C and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures {approx_equal}300 C thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds. 4 figs.

  12. Metamorphosis: Phases of UF{sub 6}

    SciTech Connect (OSTI)

    Dyer, R.H. [Department of Energy, Oak Ridge, TN (United States)

    1991-12-31T23:59:59.000Z

    A 15-minute videotape is presented. The subject matter is 150 grams of UF{sub 6} sealed in a glass tube. Close-up views show the UF{sub 6} as phase changes are effected by the addition or removal of heat from the closed system. The solid-to-liquid transition is shown as heat is added, both slowly and rapidly. The solid phases which result from freezing and from desublimation are contrasted. In the solid state, uranium hexafluoride is a nearly-white, dense crystalline solid. The appearance of this solid depends on whether it is formed by freezing from the liquid or by desublimation from the vapor phase. If frozen from the liquid, the solid particles take the form of irregularly shaped coarse grains, while the solid product of desublimation tends to be a rather formless mass without individually distinguishable particles. The changes in state are presented in terms of the UF{sub 6} phase diagram.

  13. Phase Transition Induced Fission in Lipid Vesicles

    E-Print Network [OSTI]

    C. Leirer; B. Wunderlich; V. M. Myles; M. F. Schneider

    2010-05-24T23:59:59.000Z

    In this work we demonstrate how the first order phase transition in giant unilamellar vesicles (GUVs) can function as a trigger for membrane fission. When driven through their gel-fluid phase transition GUVs exhibit budding or pearl formation. These buds remain connected to the mother vesicle presumably by a small neck. Cooling these vesicles from the fluid phase (T>Tm) through the phase transition into the gel state (T

  14. Critical line of the deconfinement phase transition

    E-Print Network [OSTI]

    M. I. Gorenstein; M. Gazdzicki; W. Greiner

    2005-05-17T23:59:59.000Z

    Phase diagram of strongly interacting matter is discussed within the exactly solvable statistical model of the quark-gluon bags. The model predicts two phases of matter: the hadron gas at a low temperature T and baryonic chemical potential muB, and the quark-gluon gas at a high T and/or muB. The nature of the phase transition depends on a form of the bag mass-volume spectrum (its pre-exponential factor), which is expected to change with the muB/T ratio. It is therefore likely that the line of the 1st} order transition at a high muB/T ratio is followed by the line of the 2nd order phase transition at an intermediate muB/T, and then by the lines of "higher order transitions" at a low muB/T.

  15. Two phase flow in capillary tubes

    E-Print Network [OSTI]

    Suo, Mikio

    1963-01-01T23:59:59.000Z

    The flow of two phases, gas and liquid, has been studied in horizontal tubes of capillary diameter. The flow has been primarily studied in the regime where the gas flows as long bubbles separated from the wall of the tube ...

  16. Gauge effects on phase transitions in superconductors

    E-Print Network [OSTI]

    D. V. Shopova; T. E. Tsvetkov; D. I. Uzunov

    2007-02-14T23:59:59.000Z

    Classic and recent results for gauge effects on the properties of the normal-to-superconducting phase transition in bulk and thin film superconductors are reviewed. Similar problems in the description of other natural systems (liquid crystals, quantum field theory, early universe) are also discussed. The relatively strong gauge effects on the fluctuations of the ordering field at low spatial dimensionality D and, in particular, in thin (quasi-2D) films are considered in details. A special attention is paid to the fluctuations of the gauge field. It is shown that the mechanism in which these gauge fluctuations affect on the order of the phase transition and other phase transition properties varies with the variation of the spatial dimensionality D. The problem for the experimental confirmation of the theoretical predictions about the order of the phase transitions in gauge systems is discussed.

  17. Elasticity of Twist-Bend Nematic Phases

    E-Print Network [OSTI]

    Epifanio G. Virga

    2014-04-12T23:59:59.000Z

    The ground state of twist-bend nematic liquid crystals is a heliconical molecular arrangement in which the nematic director precesses uniformly about an axis, making a fixed angle with it. Both precession senses are allowed in the ground state of these phases. When one of the two \\emph{helicities} is prescribed, a single helical nematic phase emerges. A quadratic elastic theory is proposed here for each of these phases which features the same elastic constants as the classical theory of the nematic phase, requiring all of them to be positive. To describe the helix axis, it introduces an extra director field which becomes redundant for ordinary nematics. Putting together helical nematics with opposite helicities, we reconstruct a twist-bend nematic, for which the quadratic elastic energies of the two helical variants are combined in a non-convex energy.

  18. DSO216_Phase_II_Summary_Updates

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

    Summary of DSO 216 - Phase II Update Limiting Wind Output to Scheduled Value and Curtailing Schedules to Actual Wind Generation Updated: December 13, 2013 I. PURPOSE The purpose of...

  19. Fresnel phase plates as reconfigurable microfluidic lenses

    E-Print Network [OSTI]

    Tsikata, Sedina, 1981-

    2004-01-01T23:59:59.000Z

    In this study, Fresnel phase plates were tested as reconfigurable lenses. The lenses were constructed from a Fresnel pattern which was transferred to a silicon substrate via photolithography. A layer of PDMS was spin-coated ...

  20. Clustering versus non-clustering phase synchronizations

    SciTech Connect (OSTI)

    Liu, Shuai [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China) [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China); University of Chinese Academy of Sciences, Beijing 100049 (China); Zhan, Meng, E-mail: zhanmeng@wipm.ac.cn [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)] [Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)

    2014-03-15T23:59:59.000Z

    Clustering phase synchronization (CPS) is a common scenario to the global phase synchronization of coupled dynamical systems. In this work, a novel scenario, the non-clustering phase synchronization (NPS), is reported. It is found that coupled systems do not transit to the global synchronization until a certain sufficiently large coupling is attained, and there is no clustering prior to the global synchronization. To reveal the relationship between CPS and NPS, we further analyze the noise effect on coupled phase oscillators and find that the coupled oscillator system can change from CPS to NPS with the increase of noise intensity or system disorder. These findings are expected to shed light on the mechanism of various intriguing self-organized behaviors in coupled systems.

  1. Studies of phase separable soluble polymers 

    E-Print Network [OSTI]

    Furyk, Steven Michael

    2006-08-16T23:59:59.000Z

    but suffer from problems inherent to their heterogeneous nature. A solution to these problems has been to utilize phase separable soluble polymers in the design of Â?smartÂ? responsive systems that offer the option of homogenous reaction conditions...

  2. Synthesis of alloys with controlled phase structure

    DOE Patents [OSTI]

    Guthrie, Stephen Everett (Livermore, CA); Thomas, George John (Livermore, CA); Bauer, Walter (Livermore, CA); Yang, Nancy Yuan Chi (Lafayette, CA)

    1999-04-20T23:59:59.000Z

    A method for preparing controlled phase alloys useful for engineering and hydrogen storage applications. This novel method avoids melting the constituents by employing vapor transport, in a hydrogen atmosphere, of an active metal constituent, having a high vapor pressure at temperatures .apprxeq.300 C. and its subsequent condensation on and reaction with the other constituent (substrate) of an alloy thereby forming a controlled phase alloy and preferably a single phase alloy. It is preferred that the substrate material be a metal powder such that diffusion of the active metal constituent, preferably magnesium, and reaction therewith can be completed within a reasonable time and at temperatures .apprxeq.300 C. thereby avoiding undesirable effects such as sintering, local compositional inhomogeneities, segregation, and formation of unwanted second phases such as intermetallic compounds.

  3. Quantum Phase Transition in a Graphene Model

    E-Print Network [OSTI]

    Simon Hands; Costas Strouthos

    2008-08-20T23:59:59.000Z

    We present results for the equation of state of a graphene-like model in an effort to understand the properties of its quantum phase transition. The N_f fermion species interact through a three dimensional instantaneous Coulomb potential. Since there are no reliable analytical tools that work for all values of N_f and the coupling constant g, we rely on Monte Carlo simulations to calculate the critical properties of the model near the phase transition. We consider the four-component formulation for the fermion fields, which arises naturally as the continuum limit of the staggered fermion construction in (2+1) dimensions. In the limit of infinitely strong Coulomb interaction, the system undergoes a quantum phase transition at a critical number of fermion species N_fc ~ 4.7. We also calculate the values of the critical exponents at the quantum phase transition.

  4. Analysis of Nuclear Quantum Phase Transitions

    SciTech Connect (OSTI)

    Li, Z. P.; Meng, J. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); Niksic, T.; Vretenar, D. [Physics Department, Faculty of Science, University of Zagreb (Croatia); Lalazissis, G. A. [Department of Theoretical Physics, Aristotle University of Thessaloniki, GR-54124 (Greece); Ring, P. [Physik-Department der Technischen Universitaet Muenchen, D-85748 Garching (Germany)

    2009-08-26T23:59:59.000Z

    A microscopic analysis, based on nuclear energy density functionals, is presented for shape phase transitions in Nd isotopes. Low-lying excitation spectra and transition probabilities are calculated starting from a five-dimensional Hamiltonian, with parameters determined by constrained relativistic mean-field calculations for triaxial shapes. The results reproduce available data, and show that there is an abrupt change of structure at N = 90, that corresponds to a first-order quantum phase transition between spherical and axially deformed shapes.

  5. Acoustic resonance phase locked photoacoustic spectrometer

    DOE Patents [OSTI]

    Pilgrim, Jeffrey S.; Bomse, David S.; Silver, Joel A.

    2003-08-19T23:59:59.000Z

    A photoacoustic spectroscopy method and apparatus for maintaining an acoustic source frequency on a sample cell resonance frequency comprising: providing an acoustic source to the sample cell to generate a photoacoustic signal, the acoustic source having a source frequency; continuously measuring detection phase of the photoacoustic signal with respect to source frequency or a harmonic thereof; and employing the measured detection phase to provide magnitude and direction for correcting the source frequency to the resonance frequency.

  6. Phase-sensitive X-ray imager

    DOE Patents [OSTI]

    Baker, Kevin Louis

    2013-01-08T23:59:59.000Z

    X-ray phase sensitive wave-front sensor techniques are detailed that are capable of measuring the entire two-dimensional x-ray electric field, both the amplitude and phase, with a single measurement. These Hartmann sensing and 2-D Shear interferometry wave-front sensors do not require a temporally coherent source and are therefore compatible with x-ray tubes and also with laser-produced or x-pinch x-ray sources.

  7. Optimum phase space probabilities from quantum tomography

    SciTech Connect (OSTI)

    Roy, Arunabha S., E-mail: roy.arunabha@gmail.com [King's College, London (United Kingdom); Roy, S. M., E-mail: smroy@hbcse.tifr.res.in [HBCSE, Tata Institute of Fundamental Research, Mumbai (India)

    2014-01-15T23:59:59.000Z

    We determine a positive normalised phase space probability distribution P with minimum mean square fractional deviation from the Wigner distribution W. The minimum deviation, an invariant under phase space rotations, is a quantitative measure of the quantumness of the state. The positive distribution closest to W will be useful in quantum mechanics and in time frequency analysis. The position-momentum correlations given by the distribution can be tested experimentally in quantum optics.

  8. Phase conjugation of high energy lasers.

    SciTech Connect (OSTI)

    Bliss, David Emery; Valley, Michael T.; Atherton, Briggs W.; Bigman, Verle; Boye, Lydia Ann; Broyles, Robin Scott; Kimmel, Mark W.; Law, Ryan J.; Yoder, James R.

    2013-01-01T23:59:59.000Z

    In this report we explore claims that phase conjugation of high energy lasers by stimulated Brillouin scattering (SBS) can compensate optical aberrations associated with severely distorted laser amplifier media and aberrations induced by the atmosphere. The SBS media tested was a gas cell pressurized up to 300 psi with SF6 or Xe or both. The laser was a 10 Hz, 3J, Q-switched Nd:YAG with 25 ns wide pulses. Atmospheric aberrations were created with space heaters, helium jets and phase plates designed with a Kolmogorov turbulence spectrum characterized by a Fried parameter, ro , ranging from 0.6 - 6.0 mm. Phase conjugate tests in the laboratory were conducted without amplification. For the strongest aberrations, D/ro ~ 20, created by combining the space heaters with the phase plate, the Strehl ratio was degraded by a factor of ~50. Phase conjugation in SF6 restored the peak focusable intensity to about 30% of the original laser. Phase conjugate tests at the outdoor laser range were conducted with laser amplifiers providing gain in combination with the SBS cell. A large 600,000 BTU kerosene space heater was used to create turbulence along the beam path. An atmospheric structure factor of Cn2 = 5x10-13 m2/3 caused the illumination beam to expand to a diameter 250mm and overfill the receiver. The phase conjugate amplified return could successfully be targeted back onto glints 5mm in diameter. Use of a lenslet arrays to lower the peak focusable intensity in the SBS cell failed to produce a useful phase conjugate beam; The Strehl ratio was degraded with multiple random lobes instead of a single focus. I will review literature results which show how multiple beams can be coherently combined by SBS when a confocal reflecting geometry is used to focus the laser in the SBS cell.

  9. Crystallization of Ge2Sb2Te5 nanometric phase change material clusters made by gas-phase condensation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Crystallization of Ge2Sb2Te5 nanometric phase change material clusters made by gas- phase=pdfcov Published by the AIP Publishing Articles you may be interested in Nanoscale nuclei in phase change materials phase change material clusters made by gas-phase condensation G. E. Ghezzi,1,2 R. Morel,3 A. Brenac,3 N

  10. Bachelors Enlisted Quarters Shipboard Sailors Ashore Phase I

    High Performance Buildings Database

    Norfolk, VA Phase one of the quarters will house 1000 sailors. The completed three-phase project will house 3000 sailors in a campus environment. Future phases will include additional housing, outdoor athletic areas, and a central community center.

  11. Boson topological insulators: A window into highly entangled quantum phases

    E-Print Network [OSTI]

    Wang, Chong

    We study several aspects of the realization of global symmetries in highly entangled phases of quantum matter. Examples include gapped topological ordered phases, gapless quantum spin liquids, and non-Fermi liquid phases. ...

  12. MICROSTRUCTURE AND PROPERTIES OF DUAL PHASE STEELS CONTAINING FINE PRECIPITATES

    E-Print Network [OSTI]

    Gau, J.S.

    2014-01-01T23:59:59.000Z

    and Properties of Dual-Phase Steels, R. A. Kot and J. W.of Niobium Microalloyed Dual- Phase Steel, MetallurgicalAND PROPERTIES OF DUAL PHASE STEELS CONTAINING FINE

  13. Understanding reservoir mechanisms using phase and component streamline tracing

    E-Print Network [OSTI]

    Kumar, Sarwesh

    2009-05-15T23:59:59.000Z

    some important signatures of reservoir dynamics, such as dominant phase in flow, appearance and disappearance of phases (e.g. gas), and flow of components like CO2. In the work being presented, we demonstrate the benefits of visualizing phase...

  14. Scheme for a linear-optical controlled-phase gate with programmable phase shift

    E-Print Network [OSTI]

    Karel Lemr; Karol Bartkiewicz; Antonín ?ernoch

    2015-03-20T23:59:59.000Z

    We propose a linear-optical scheme for a controlled-phase gate with tunable phase shift set by a program qubit. Analysis of the scheme is provided with considerations for experimental feasibility. We also discuss options for increasing the success probability up to 1/12 which is close the the optimal success probability of a non-programmable tunable controlled-phase gate.

  15. Modeling studies of heat transfer and phase distribution in two-phase geothermal reservoirs

    SciTech Connect (OSTI)

    Lai, C.H.; Bodvarsson, G.S.; Truesdell, A.H. (Lawrence Berkeley Lab., CA (United States). Earth Sciences Div.)

    1994-02-01T23:59:59.000Z

    Phase distribution as well as mass flow and heat transfer behavior in two-phase geothermal systems have been studied by numerical modeling. A two-dimensional porous-slab model was used with a non-uniform heat flux boundary conditions at the bottom. Steady-state solutions are obtained for the phase distribution and heat transfer behavior for cases with different mass of fluid (gas saturation) in place, permeabilities, and capillary pressures. The results obtained show very efficient heat transfer in the vapor-dominated zone due to the development of heat pipes and near-uniform saturations. The phase distribution below the vapor-dominated zone depends on permeability. For relatively high-permeability systems, single-phase liquid zones prevail, with convection providing the energy throughput. For lower permeability systems, a two-phase liquid-dominated zone develops, because single-phase liquid convection is not sufficient to dissipate heat released from the source. These results are consistent with observations from the field, where most high-temperature liquid-dominated two-phase systems have relatively low permeabilities e.g. Krafla, Iceland; Kenya; Baca, New Mexico. The numerical results obtained also show that for high heat flow a high-temperature single-phase vapor zone can develop below a typical (240 C) vapor-dominated zone, as has recently been found at the Geysers, California, and Larderello, Italy.

  16. Husimi distribution and phase space analysis of Dicke model quantum phase transition

    E-Print Network [OSTI]

    E. Romera; R. del Real; M. Calixto

    2014-09-19T23:59:59.000Z

    The Husimi distribution is proposed for a phase space analysis of quantum phase transitions in the Dicke model of spin-boson interactions. We show that the inverse participation ratio and Wehrl entropy of the Husimi distribution give sharp signatures of the quantum phase transition. The analysis has been done using two frameworks: a numerical treatment and an analytical variational approximation. Additionally we have proposed a new characterization of the Dicke model quantum phase transition by means of the zeros of the Husimi distribution in the variational approach.

  17. Quantitative Infrared Intensity Studies of Vapor-PhaseGlyoxal...

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

    Infrared Intensity Studies of Vapor-Phase Glyoxal,Methylglyoxal, and 2,3-Butanedione (Diacetyl) with Quantitative Infrared Intensity Studies of Vapor-Phase Glyoxal,Methylglyoxal,...

  18. Absolute integrated intensities of vapor-phase hydrogen peroxide...

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

    Absolute integrated intensities of vapor-phase hydrogen peroxide (H202) in the mid-infrared at atmospheric pressure. Absolute integrated intensities of vapor-phase hydrogen...

  19. Factors Affecting HCCI Combustion Phasing for Fuels with Single...

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

    Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry Factors Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry 2004...

  20. High performance Zintl phase TE materials with embedded nanoparticles...

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

    Zintl phase TE materials with embedded nanoparticles Performance of zintl phase thermoelectric materials with embedded particles are evaluated shakouri.pdf More Documents &...

  1. SPIDERS JCTD Phase 3 Status and Way Ahead

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

    NAVFAC UNCLASSIFIED UNCLASSIFIED Page-2 Phase 3 Objectives * Phase 3 is the entire Camp Smith installation * Multiple integrated microgrids will support mission Integration of...

  2. 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...

  3. Small Business Innovation Research (SBIR) FY 2014 Phase I topics...

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

    (SBIR) FY 2014 Phase I topics for the Funding Opportunity Announcement (FOA). Small Business Innovation Research (SBIR) FY 2014 Phase I topics for the Funding Opportunity...

  4. Building America Webinar: Opportunities to Apply Phase Change...

    Energy Savers [EERE]

    Opportunities to Apply Phase Change Materials to Building Enclosures Building America Webinar: Opportunities to Apply Phase Change Materials to Building Enclosures This webinar,...

  5. Mass-Conserved Phase Field Models for Binary Fluids

    E-Print Network [OSTI]

    2012-07-13T23:59:59.000Z

    The commonly used incompressible phase field models for non-reactive, bi- nary fluids, in which the Cahn-Hilliard equation is used for the transport of phase.

  6. Modeling and numerical approximation of two-phase ...

    E-Print Network [OSTI]

    2011-02-09T23:59:59.000Z

    Feb 9, 2011 ... phase incompressible flows with matching or non-matching density. ... The interfacial dynamics of two-phase immiscible fluids have attracted.

  7. advanced study phase: Topics by E-print Network

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

    behaviour of advanced high strength Dual Phase Steels used in car body panels. A Dual Phase Steel specimen provided by Tata Steel Europe (formerly CORUS Sweta Kadam - Modelling...

  8. Project Profile: Encapsulated Phase Change Material in Thermal...

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

    Encapsulated Phase Change Material in Thermal Storage for Baseload CSP Plants Project Profile: Encapsulated Phase Change Material in Thermal Storage for Baseload CSP Plants...

  9. Opportunities to Apply Phase Change Materials to Building Enclosures...

    Energy Savers [EERE]

    Opportunities to Apply Phase Change Materials to Building Enclosures Webinar Opportunities to Apply Phase Change Materials to Building Enclosures Webinar Slides from the Building...

  10. Energy stable schemes and numerical simulations of two phase ...

    E-Print Network [OSTI]

    Title: Energy stable schemes and numerical simulations of two phase complex fluids by the phase-field method Abstact: We present an energetic variational ...

  11. In Situ TEM Investigation of Congruent Phase Transition and Structural...

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

    In Situ TEM Investigation of Congruent Phase Transition and Structural Evolution of Nanostructured SiliconCarbon Anode for In Situ TEM Investigation of Congruent Phase Transition...

  12. First-principles calculations of the electronic structure, phase...

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

    calculations of the electronic structure, phase transition and properties of ZrSiO4 polymorphs. First-principles calculations of the electronic structure, phase transition and...

  13. Energy Department Announces Up to $31 Million for Initial Phases...

    Office of Environmental Management (EM)

    Up to 31 Million for Initial Phases of Enhanced Geothermal Systems Field Observatory Energy Department Announces Up to 31 Million for Initial Phases of Enhanced Geothermal...

  14. Composition, stability, and measurement of reduced uranium phases...

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

    Composition, stability, and measurement of reduced uranium phases for groundwater bioremediation at Old Rifle, CO. Composition, stability, and measurement of reduced uranium phases...

  15. acute phase injury: Topics by E-print Network

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

    Next Page Last Page Topic Index 1 Acute Injury Phase Clinical Trials in Acute Traumatic Brain Injury Engineering Websites Summary: 6122013 1 Acute Injury Phase Clinical Trials in...

  16. Aggregation, Coarsening, and Phase Transformation in ZnSNanoparticles...

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

    Coarsening, and Phase Transformation in ZnS NanoparticlesStudied by Molecular Dynamics Simulations. Aggregation, Coarsening, and Phase Transformation in ZnS...

  17. Rotational Rehybridization and the High Temperature Phase of...

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

    Rotational Rehybridization and the High Temperature Phase of UC2. Rotational Rehybridization and the High Temperature Phase of UC2. Abstract: The screened hybrid approximation...

  18. Advanced Collaborative Emissions Study (ACES): Phase 2 Status...

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

    : Phase 2 Status Report Advanced Collaborative Emissions Study (ACES): Phase 2 Status Report Discusses status of ACES, a cooperative multi-party effort to characterize emissions...

  19. Improved peptide elution time prediction for reversed-phase liquid...

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

    peptide elution time prediction for reversed-phase liquid chromatography-MS by incorporating peptide sequence Improved peptide elution time prediction for reversed-phase liquid...

  20. Demonstration of a Variable Phase Turbine Power System for Low...

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

    Demonstration of a Variable Phase Turbine Power System for Low Temperature Geothermal Resources Demonstration of a Variable Phase Turbine Power System for Low Temperature...

  1. analysis phase: Topics by E-print Network

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

    D. Naselsky 2007-06-14 58 Phase equilibria of polydisperse hydrocarbons: moment free energy method analysis Mathematical Physics (arXiv) Summary: We analyze the phase...

  2. Project Profile: Innovative Phase Change Thermal Energy Storage...

    Energy Savers [EERE]

    Phase Change Thermal Energy Storage Solution for Baseload Power Project Profile: Innovative Phase Change Thermal Energy Storage Solution for Baseload Power Infinia logo Infinia,...

  3. Fourier Phase Analysis of SDSS Galaxies

    E-Print Network [OSTI]

    Chiaki Hikage; Takahiko Matsubara; Yasushi Suto; Changbom Park; Alexander S. Szalay; Jon Brinkmann

    2005-09-13T23:59:59.000Z

    We present a first analysis of the clustering of SDSS galaxies using the distribution function of the sum of Fourier phases. This statistic was recently proposed by one of authors as a new method to probe phase correlations of cosmological density fields. Since the Fourier phases are statistically independent of Fourier amplitudes, the phase statistic plays a complementary role to the conventional two-point statistics of galaxy clustering. In particular, we focus on the distribution functions of phase sum over three closed wavevectors as a function of the configurations of triangle wavevectors. We find that the observed distribution functions of phase sum are in good agreement with the lowest-order approximation from perturbation theory. For direct comparison with observations, we construct mock catalogs from N-body simulations taking account of several observational effects such as the survey geometry, the redshift distortion, and the discreteness due to the limited number of data. Indeed the observed phase correlations for the galaxies in the range of absolute magnitude -22

  4. OPTICAL PHASE CURVES OF KEPLER EXOPLANETS

    SciTech Connect (OSTI)

    Esteves, Lisa J.; De Mooij, Ernst J. W.; Jayawardhana, Ray, E-mail: esteves@astro.utoronto.ca, E-mail: demooij@astro.utoronto.ca, E-mail: rayjay@astro.utoronto.ca [Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario M5S 3H4 (Canada)

    2013-07-20T23:59:59.000Z

    We conducted a comprehensive search for optical phase variations of all close-in (a/R{sub *} < 10) planet candidates in 15 quarters of Kepler space telescope data. After correcting for systematics, we found eight systems that show secondary eclipses as well as phase variations. Of these, five (Kepler-5, Kepler-6, Kepler-8, KOI-64, and KOI-2133) are new and three (TrES-2, HAT-P-7, and KOI-13) have published phase curves, albeit with many fewer observations. We model the full phase curve of each planet candidate, including the primary and secondary transits, and derive their albedos, dayside and nightside temperatures, ellipsoidal variations, and Doppler beaming. We find that KOI-64 and KOI-2133 have nightside temperatures well above their equilibrium values (while KOI-2133 also has an albedo, >1), so we conclude that they are likely to be self-luminous objects rather than planets. The other six candidates have characteristics consistent with their being planets with low geometric albedos (<0.3). For TrES-2 and KOI-13, the Kepler bandpass appears to probe atmospheric layers hotter than the planet's equilibrium temperature. For KOI-13, we detect a never-before-seen third cosine harmonic with an amplitude of 6.7 {+-} 0.3 ppm and a phase shift of -1.1 {+-} 0.1 rad in the phase curve residual, possibly due to its spin-orbit misalignment. We report derived planetary parameters for all six planets, including masses from ellipsoidal variations and Doppler beaming, and compare our results to published values when available. Our results nearly double the number of Kepler exoplanets with measured phase curve variations, thus providing valuable constraints on the properties of hot Jupiters.

  5. Phase Transformations in Binary Colloidal Monolayers

    E-Print Network [OSTI]

    Ye Yang; Lin Fu; Catherine Marcoux; Joshua E. S. Socolar; Patrick Charbonneau; Benjamin B. Yellen

    2015-02-10T23:59:59.000Z

    Phase transformations can be difficult to characterize at the microscopic level due to the inability to directly observe individual atomic motions. Model colloidal systems, by contrast, permit the direct observation of individual particle dynamics and of collective rearrangements, which allows for real-space characterization of phase transitions. Here, we study a quasi-two-dimensional, binary colloidal alloy that exhibits liquid-solid and solid-solid phase transitions, focusing on the kinetics of a diffusionless transformation between two crystal phases. Experiments are conducted on a monolayer of magnetic and nonmagnetic spheres suspended in a thin layer of ferrofluid and exposed to a tunable magnetic field. A theoretical model of hard spheres with point dipoles at their centers is used to guide the choice of experimental parameters and characterize the underlying materials physics. When the applied field is normal to the fluid layer, a checkerboard crystal forms; when the angle between the field and the normal is sufficiently large, a striped crystal assembles. As the field is slowly tilted away from the normal, we find that the transformation pathway between the two phases depends strongly on crystal orientation, field strength, and degree of confinement of the monolayer. In some cases, the pathway occurs by smooth magnetostrictive shear, while in others it involves the sudden formation of martensitic plates.

  6. Cummins Power Generation SECA Phase 1

    SciTech Connect (OSTI)

    Charles Vesely

    2007-08-17T23:59:59.000Z

    The following report documents the progress of the Cummins Power Generation (CPG) SECA Phase 1 SOFC development and final testing under the U.S. Department of Energy Solid State Energy Conversion Alliance (SECA) contract DE-FC26-01NT41244. This report overviews and summarizes CPG and partner research development leading to successful demonstration of the SECA Phase 1 objectives and significant progress towards SOFC commercialization. Significant Phase 1 Milestones: (1) Demonstrated: (a) Operation meeting Phase 1 requirements on commercial natural gas. (b) LPG and Natural Gas CPOX fuel reformers. (c) SOFC systems on dry CPOX reformate. (c) Steam reformed Natural Gas operation. (d) Successful start-up and shut-down of SOFC system without inert gas purge. (e) Utility of stack simulators as a tool for developing balance of plant systems. (2) Developed: (a) Low cost balance of plant concepts and compatible systems designs. (b) Identified low cost, high volume components for balance of plant systems. (c) Demonstrated high efficiency SOFC output power conditioning. (d) Demonstrated SOFC control strategies and tuning methods. The Phase 1 performance test was carried out at the Cummins Power Generation facility in Minneapolis, Minnesota starting on October 2, 2006. Performance testing was successfully completed on January 4, 2007 including the necessary steady-state, transient, efficiency, and peak power operation tests.

  7. Phase behavior of DODAB aqueous solution

    SciTech Connect (OSTI)

    Voronov, V. P.; Kuryakov, V. N.; Muratov, A. R., E-mail: muratov@ogri.ru [Russian Academy of Sciences, Oil and Gas Research Institute (Russian Federation)

    2012-12-15T23:59:59.000Z

    Phase behavior of DODAB aqueous solution, prepared without sonication, was studied by adiabatic scanning calorimetry. Measurements revealed four phase transitions with the temperatures 35.2, 39.6, 44.6, and 52.4 Degree-Sign C at heating and one transition at the temperature 40.4 Degree-Sign C at cooling. The first three transitions at heating occur in unilamellar vesicles. The first and third transitions correspond to the subgel-gel and gelliquid phase transitions, corresponding enthalpy jumps are equal to 33 and 49 kJ/mol. The second transition appears after some aging and is similar to gel-ripple phase transition in a DPPC solution, with the enthalpy jump under the transition exceeding 7.4 kJ/mol. The transition occurs in unilamellar vesicles. The transition at the temperature 52.4 Degree-Sign C occurs in another subsystem of the solution, which we believe to be multilamellar vesicles. The enthalpy jump at this transition is equal to 97 kJ/mol, and data analysis suggests that this is a subgel-liquid transition. The phase transition at cooling is the liquid-gel transition in unilamellar vesicles. During the measurements, a slow evolution of the solution occurs, consisting in a change of concentrations of unilamellar and multilamellar vesicles. This transformation mainly occurs at low temperatures.

  8. Phase equilibrium measurements on twelve binary mixtures

    SciTech Connect (OSTI)

    Giles, N.F. [Wiltec Research Co., Inc., Provo, UT (United States)] [Wiltec Research Co., Inc., Provo, UT (United States); Wilson, H.L.; Wilding, W.V. [Brigham Young Univ., Provo, UT (United States). Chemical Engineering Dept.] [Brigham Young Univ., Provo, UT (United States). Chemical Engineering Dept.

    1996-11-01T23:59:59.000Z

    Phase equilibrium measurements have been performed on twelve binary mixtures. The PTx method was used to obtain vapor-liquid equilibrium data for the following binary systems at two temperatures each: ethanethiol + propylene; nitrobenzene + methanol; pyridine + ethyl acetate; octane + tert-amyl methyl ether; diisopropyl ether + butane; 1,3-dichloro-2-propanol + epichlorohydrin; 2,3-dichloro-1-propanol + epichlorohydrin; 2,3-epoxy-1-propanol + epichlorohydrin; 3-chloro-1,2-propanediol + epichlorohydrin; methanol + hydrogen cyanide. For these systems, equilibrium vapor and liquid phase compositions were derived from the PTx data using the Soave equation of state to represent the vapor phase and the Wilson, NRTL, or Redlich-Kister activity coefficient model to represent the liquid phase. The infinite dilution activity coefficient of methylamine in N-methyl-2-pyrrolidone was determined at three temperatures by performing PTx measurements on the N-methyl-2-pyrrolidone was determined at three temperatures by performing PTx measurements on the N-methyl-2-pyrrolidone-rich half of the binary. Liquid-liquid equilibrium studies were made on the triethylene glycol + 1-pentene system at two temperatures by directly analyzing samples taken from each liquid phase.

  9. Switching dynamics in cholesteric blue phases

    E-Print Network [OSTI]

    A. Tiribocchi; G. Gonnella; D. Marenduzzo; E. Orlandini

    2011-03-30T23:59:59.000Z

    Blue phases are networks of disclination lines, which occur in cholesteric liquid crystals near the transition to the isotropic phase. They have recently been used for the new generation of fast switching liquid crystal displays. Here we study numerically the steady states and switching hydrodynamics of blue phase I (BPI) and blue phase II (BPII) cells subjected to an electric field. When the field is on, there are three regimes: for very weak fields (and strong anchoring at the boundaries) the blue phases are almost unaffected, for intermediate fields the disclinations twist (for BPI) and unzip (for BPII), whereas for very large voltages the network dissolves in the bulk of the cell. Interestingly, we find that a BPII cell can recover its original structure when the field is switched off, whereas a BPI cell is found to be trapped more easily into metastable configurations. The kinetic pathways followed during switching on and off entails dramatic reorganisation of the disclination networks. We also discuss the effect of changing the director field anchoring at the boundary planes and of varying the direction of the applied field.

  10. Master equipment list -- Phase 1. Revision 1

    SciTech Connect (OSTI)

    Jech, J.B.

    1995-04-28T23:59:59.000Z

    The purpose of this document is to define the system requirements for the Master Equipment List (MEL) Phase 1 project. The intended audience for this document includes Data Automation Engineering (DAE), Configuration Management Improvement and Control Engineering (CMI and CE), Data Administration Council (DAC), and Tank Waste Remedial System (TWRS) personnel. The intent of Phase 1 is to develop a user-friendly system to support the immediate needs of the TWRS labeling program. Phase 1 will provide CMI and CE the ability to administrate, distribute, and maintain key information generated by the labeling program. CMI and CE is assigning new Equipment Identification Numbers (EINs) to selected equipment in Tank Farms per the TWRS Data Standard ``Tank Farm Equipment Identification Number``. The MEL Phase 1 system will be a multi-user system available through the HLAN network. It will provide basic functions such as view, query, and report, edit, data entry, password access control, administration and change control. The scope of Phase 1 data will encompass all Tank Farm Equipment identified by the labeling program. The data will consist of fields from the labeling program`s working database, relational key references and pointers, safety class information, and field verification data.

  11. Phase-field modeling of three-phase electrode microstructures in solid oxide fuel cells

    E-Print Network [OSTI]

    Chen, Long-Qing

    Phase-field modeling of three-phase electrode microstructures in solid oxide fuel cells Qun Li, mechanical deformation, and heterogeneous damage accumulation in solid oxide fuel cell anodes J. Appl. Phys oxide fuel cell/gas turbine cycle J. Renewable Sustainable Energy 4, 043115 (2012) Electric

  12. Retrodirective phase-lock loop controlled phased array antenna for a solar power satellite system

    E-Print Network [OSTI]

    Kokel, Samuel John

    2006-04-12T23:59:59.000Z

    was performed using a transceiver converting a pair of received 2.9 GHz signals down to 10 MHz, and up converting two 10 MHz signals to 5.8 GHz. Phase scaling and conjugation was performed at the 10 MHz IF using linear XOR phase detectors and a PLL loop...

  13. Wind Turbine Drivetrain Condition Monitoring During GRC Phase 1 and Phase 2 Testing

    SciTech Connect (OSTI)

    Sheng, S.; Link, H.; LaCava, W.; van Dam, J.; McNiff, B.; Veers, P.; Keller, J.; Butterfield, S.; Oyague, F.

    2011-10-01T23:59:59.000Z

    This report will present the wind turbine drivetrain condition monitoring (CM) research conducted under the phase 1 and phase 2 Gearbox Reliability Collaborative (GRC) tests. The rationale and approach for this drivetrain CM research, investigated CM systems, test configuration and results, and a discussion on challenges in wind turbine drivetrain CM and future research and development areas, will be presented.

  14. Energy Audit Results for Forest City Phase I and Phase II

    E-Print Network [OSTI]

    `i Natural Energy Institute School of Ocean and Earth Science and Technology University of Hawai`i April 2013Energy Audit Results for Forest City Phase I and Phase II Prepared for the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Under Cooperative Agreement No. DE-EE0003507

  15. Friction forces on phase transition fronts

    E-Print Network [OSTI]

    Ariel Megevand

    2013-03-31T23:59:59.000Z

    In cosmological first-order phase transitions, the microscopic interaction of the phase transition fronts with non-equilibrium plasma particles manifests itself macroscopically as friction forces. In general, it is a nontrivial problem to compute these forces, and only two limits have been studied, namely, that of very slow walls and, more recently, ultra-relativistic walls which run away. In this paper we consider ultra-relativistic velocities and show that stationary solutions still exist when the parameters allow the existence of runaway walls. Hence, we discuss the necessary and sufficient conditions for the fronts to actually run away. We also propose a phenomenological model for the friction, which interpolates between the non-relativistic and ultra-relativistic values. Thus, the friction depends on two friction coefficients which can be calculated for specific models. We then study the velocity of phase transition fronts as a function of the friction parameters, the thermodynamic parameters, and the amount of supercooling.

  16. Protein folding, anisotropic collapse and blue phases

    E-Print Network [OSTI]

    E. Pitard; T. Garel; H. Orland

    1997-06-11T23:59:59.000Z

    We study a homopolymer model of a protein chain, where each monomer carries a dipole moment. To mimic the geometry of the peptidic bond, these dipoles are constrained to be locally perpendicular to the chain. The tensorial character of the dipolar interaction leads naturally to a (tensorial) liquid crystal-like order parameter. For non chiral chains, a mean field study of this model shows that a classical $\\theta$ collapse transition occurs first; at lower temperature, nematic order sets in. For chiral chains, an anisotropic (tensorial) collapse transition may occur before the $\\theta$ temperature is reached: the ordered phase can be described as a ``compact phase of secondary structures'', and possesses great similarities with the liquid crystal blue phases.

  17. Decoherence in a dynamical quantum phase transition

    E-Print Network [OSTI]

    Sarah Mostame; Gernot Schaller; Ralf Schützhold

    2010-04-15T23:59:59.000Z

    Motivated by the similarity between adiabatic quantum algorithms and quantum phase transitions, we study the impact of decoherence on the sweep through a second-order quantum phase transition for the prototypical example of the Ising chain in a transverse field and compare it to the adiabatic version of Grovers search algorithm, which displays a first order quantum phase transition. For site-independent and site-dependent coupling strengths as well as different operator couplings, the results show that (in contrast to first-order transitions) the impact of decoherence caused by a weak coupling to a rather general environment increases with system size (i.e., number of spins/qubits). This might limit the scalability of the corresponding adiabatic quantum algorithm.

  18. Rapid phase synthesis of nanocrystalline cobalt ferrite

    SciTech Connect (OSTI)

    Shanmugavel, T., E-mail: shanmugavelnano@gmail.com [Department of Physics, Paavai Engineering College, Namakkal -637018 (India); Raj, S. Gokul [Department of Physics, Vel Tech University, Avadi, Chennai - 600 062 (India); Rajarajan, G. [Department of Physics, Mahendra Engineering College, Mallasamudram -637503 (India); Kumar, G. Ramesh [Department of Physics, University College of Engineering, Anna University Chennai, Arni- 632317 (India)

    2014-04-24T23:59:59.000Z

    Synthesis of single phase nanocrystalline Cobalt Ferrite (CoFe{sub 2}O{sub 4}) was achieved by single step autocombustion technique with the use of citric acid as a chelating agent in mono proportion with metal. Specimens prepared with this method showed significantly higher initial permeability's than with the conventional process. Single phase nanocrystalline cobalt ferrites were formed at very low temperature. Surface morphology identification were carried out by transmission electron microscopy (TEM) analysis. The average grain size and density at low temperature increased gradually with increasing the temperature. The single phase formation is confirmed through powder X-ray diffraction analysis. Magnetization measurements were obtained at room temperature by using a vibrating sample magnetometer (VSM), which showed that the calcined samples exhibited typical magnetic behaviors. Temperature dependent magnetization results showed improved behavior for the nanocrystalline form of cobalt ferrite when compared to the bulk nature of materials synthesized by other methods.

  19. Program predicts two-phase pressure gradients

    SciTech Connect (OSTI)

    Jacks, D.C.; Hill, A.D.

    1983-11-18T23:59:59.000Z

    The calculator program discussed, ORK, was designed for the HP-41CV hand-held calculator and uses the Orkiszewski correlation for predicting 2-phase pressure gradients in vertical tubulars. Accurate predictions of pressure gradients in flowing and gas lift wells over a wide range of well conditions can be obtained with this method, which was developed based on data from 148 wells. The correlation is one of the best generalized 2-phase pressure gradient prediction methods developed to date for vertical flow. It is unique in that hold-up is derived from observed physical phenomena, and the pressure gradient is related to the geometrical distribution of the liquid and gas phase (flow regime).

  20. AMPX-77 Phase 1 certification package

    SciTech Connect (OSTI)

    Niemer, K.A.

    1994-03-01T23:59:59.000Z

    The AMPX-77 Phase 1 modules have been certified. AMPX-77 is a modular code system for generating coupled multigroup neutron-gamma cross section libraries from Evaluated Nuclear Data Files (ENDF/B). All basic cross-section data are input from the formats used by the ENDF/B, and output can be obtained from a variety of formats, included in its own internal and very general formats, along with a variety of other useful formats used by major transport, diffusion theory, and Monte Carlo codes. Processing is provided for both neutron and gamma-ray data. The AMPX-77 code system will be used at SRS to perform critical calculations related to nuclear criticality safety. The AMPX-77 modular codes system contains forty-seven separate modules. For the certification process, the 47 modules have been divided into three groups or phases. This Certification Package is for the Phase 1 modules: BONAMI, LAPHNGAS, MALOCS, NITAWL, ROLAIDS, SMUG, and XSDRNPM.

  1. The Phase Transition of Dark Energy

    E-Print Network [OSTI]

    Wei Wang; Yuanxing Gui; Ying Shao

    2006-12-05T23:59:59.000Z

    Considering that the universe is filled with the nonrelativistic matter and dark energy and each component is respectively satisfied with its conservation condition in the absence of their interaction, we give the change rate of the fractional density and the density of dark energy from the conservation condition. It is clear that the fractional density of dark energy will monotonously increase and gradually become the dominating contribution to the universe as the redshift becomes low. Combining the evolutional trend of the state equation of dark energy and the change rate of the density of dark energy we find that the density of dark energy will decrease up to a minimum and whereafter it will increase again as the redshift becomes low. This can be regarded as the phase transition of dark energy from the quintessence phase to the phantom phase.

  2. Phase synchronization of instrumental music signals

    E-Print Network [OSTI]

    Sayan Mukherjee; Sanjay Kumar Palit; Santo Banerjee; MRK Ariffin; D. K. Bhattacharya

    2014-09-04T23:59:59.000Z

    Signal analysis is one of the finest scientific techniques in communication theory. Some quantitative and qualitative measures describe the pattern of a music signal, vary from one to another. Same musical recital, when played by different instrumentalists, generates different types of music patterns. The reason behind various patterns is the psychoacoustic measures - Dynamics, Timber, Tonality and Rhythm, varies in each time. However, the psycho-acoustic study of the music signals does not reveal any idea about the similarity between the signals. For such cases, study of synchronization of long-term nonlinear dynamics may provide effective results. In this context, phase synchronization (PS) is one of the measures to show synchronization between two non-identical signals. In fact, it is very critical to investigate any other kind of synchronization for experimental condition, because those are completely non identical signals. Also, there exists equivalence between the phases and the distances of the diagonal line in Recurrence plot (RP) of the signals, which is quantifiable by the recurrence quantification measure tau-recurrence rate. This paper considers two nonlinear music signals based on same raga played by two eminent sitar instrumentalists as two non-identical sources. The psycho-acoustic study shows how the Dynamics, Timber, Tonality and Rhythm vary for the two music signals. Then, long term analysis in the form of phase space reconstruction is performed, which reveals the chaotic phase spaces for both the signals. From the RP of both the phase spaces, tau-recurrence rate is calculated. Finally by the correlation of normalized tau-recurrence rate of their 3D phase spaces and the PS of the two music signals has been established. The numerical results well support the analysis.

  3. Phase Synchronization between Two Superradiant Lasers

    E-Print Network [OSTI]

    Joshua M. Weiner; Kevin C. Cox; Justin G. Bohnet; James K. Thompson

    2015-03-22T23:59:59.000Z

    We experimentally demonstrate synchronization between two distinct ensembles of cold atoms undergoing steady state superradiance within a single longitudinal and transverse mode of the same optical cavity. The synchronization process is studied first in terms of the time dynamics of re-synchronization when the phase alignment of the two oscillators is abruptly broken. We also observe the steady state behavior of the lasers as their relative frequency is continuously varied. This system has the potential to realize a non-equilibrium quantum phase transition and could inform future implementations of milliHertz linewidth lasers.

  4. Magnetic properties of two-phase superconductors

    E-Print Network [OSTI]

    E. Di Grezia; S. Esposito; G. Salesi

    2007-09-17T23:59:59.000Z

    We have recently proposed a theoretical model for superconductors endowed with two distinct superconducting phases, described by two scalar order parameters which condensate at different critical temperatures. On analyzing the magnetic behavior of such systems, we have found some observable differences with respect to the case of ordinary Ginzburg-Landau superconductors. In particular, at low temperature the London penetration length is strongly reduced and the Ginzburg-Landau parameter k becomes a function of temperature. By contrast, in the temperature region between the two phase transitions k is constant and the system is a type-I or a type-II superconductor depending on the ratio between the critical temperatures.

  5. Michael Rupen EVLA Phase II Definition Aug 23 25, 2001.

    E-Print Network [OSTI]

    Groppi, Christopher

    Michael Rupen EVLA Phase II Definition Meeting Aug 23 ­ 25, 2001. 1 EVLA Phase II Scientific Overview Michael P. Rupen #12;Michael Rupen EVLA Phase II Definition Meeting Aug 23 ­ 25, 2001. 2 New the resolution · Always available! #12;Michael Rupen EVLA Phase II Definition Meeting Aug 23 ­ 25, 2001. 3 NMA

  6. Vortex phase-jitter in acoustically excited bluff body flames

    E-Print Network [OSTI]

    Lieuwen, Timothy C.

    Vortex phase-jitter in acoustically excited bluff body flames Santosh J. Shanbhogue, Michael disturbances. Phase locked particle image velocimetry was carried out over a range of conditions", manifested as cycle-to-cycle variation in flame and vorticity field at the same excitation phase. Phase

  7. Excitation and control of multi-phase periodic waves in

    E-Print Network [OSTI]

    Fominov, Yakov

    the phase of the excited wave by the driver ("phase-locking") control the wave by varying parametersExcitation and control of multi-phase periodic waves in sine-Gordon equation Arkadiy Shagalovµcr U ()eff U ()eff Threshold condition for phase-locking: µ > µcr = 0.41 > cr = 3.28 3/2 0m 3

  8. Phase separation and convection in heterogeneous porous media

    E-Print Network [OSTI]

    Simon, Emmanuel

    permeability fields. In mid-ocean ridge hydrothermal systems, a dense brine phase and a coexisting vapor phase permeabilities can act as a store for brines and facilitate the formation of much thicker brine layers than separates into a dense brine phase and a coexisting low-salinity vapor phase at elevated temperatures

  9. Feed-forward digital phase and amplitude correction system

    DOE Patents [OSTI]

    Yu, D.U.L.; Conway, P.H.

    1994-11-15T23:59:59.000Z

    Phase and amplitude modifications in repeatable RF pulses at the output of a high power pulsed microwave amplifier are made utilizing a digital feed-forward correction system. A controlled amount of the output power is coupled to a correction system for processing of phase and amplitude information. The correction system comprises circuitry to compare the detected phase and amplitude with the desired phase and amplitude, respectively, and a digitally programmable phase shifter and attenuator and digital logic circuitry to control the phase shifter and attenuator. The phase and amplitude of subsequent are modified by output signals from the correction system. 11 figs.

  10. The enriched phase structure of black branes in canonical ensemble

    E-Print Network [OSTI]

    J. X. Lu; Shibaji Roy; Zhiguang Xiao

    2011-10-10T23:59:59.000Z

    It is found that a necessary completion of phase structure of D-dimensional charged black p-brane ($p > 0$) in a cavity requires two additional thermodynamical phases, the so-called "bubble of nothing" and/or the extremal brane, in canonical ensemble. This finding resolves the puzzle about the missing phases which are needed for the underlying phase diagram when $\\tilde d = D - p - 3 \\leq 2$ and gives a new (bubble) phase which can become globally stable when $\\tilde d > 2$. An analog of Hawking-Page transition is also found among other new phase transitions, giving a complete phase structure in this setup.

  11. Method and apparatus for optical phase error correction

    DOE Patents [OSTI]

    DeRose, Christopher; Bender, Daniel A.

    2014-09-02T23:59:59.000Z

    The phase value of a phase-sensitive optical device, which includes an optical transport region, is modified by laser processing. At least a portion of the optical transport region is exposed to a laser beam such that the phase value is changed from a first phase value to a second phase value, where the second phase value is different from the first phase value. The portion of the optical transport region that is exposed to the laser beam can be a surface of the optical transport region or a portion of the volume of the optical transport region. In an embodiment of the invention, the phase value of the optical device is corrected by laser processing. At least a portion of the optical transport region is exposed to a laser beam until the phase value of the optical device is within a specified tolerance of a target phase value.

  12. POSSIBLE PHASE LOOP FOR THE GLOBAL DECOUPLING.

    SciTech Connect (OSTI)

    LUO, Y.; CAMERON, P.; DELLA PENNA, A.; JONES, R.; ET AL.

    2005-05-16T23:59:59.000Z

    The two eigentunes Q{sub I} and Q{sub II}, two eigenmode amplitude ratios R{sub I} and R{sub II}, and two eignmode phase differences {Delta}{phi}{sub I} and {Delta}{phi}{sub II}, are defined as the coupling observables for the linear weak difference betatron coupling. Simulations were carried out to investigate their behaviors in global decoupling scans. It was found that the amplitude ratios R{sub I,II} are more sensitive than the tune split when the decoupling scan is approaching the global uncoupled point, and that the phase differences {Delta}{phi}{sub I,II} tell the right global decoupling direction, the right strength combination of the skew quadrupoles or families. The analytical solution to these six coupling observables is calculated through both the strict matrix approach and the perturbation Hamiltonian approach. The constant phase differences in the right decoupling direction hint a possible global decoupling phase loop. Dedicated beam experiments were carried out at the Relativistic Heavy Ion Collider (RHIC). The preliminary results from the beam experiments are presented. These six parameters can be used for the global decoupling in feed-back mode, especially on the non-stop energy ramp.

  13. On phase diagrams of magnetic reconnection

    SciTech Connect (OSTI)

    Cassak, P. A. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)] [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States); Drake, J. F. [IREAP, University of Maryland, College Park, Maryland 20742-3511 (United States)] [IREAP, University of Maryland, College Park, Maryland 20742-3511 (United States)

    2013-06-15T23:59:59.000Z

    Recently, “phase diagrams” of magnetic reconnection were developed to graphically organize the present knowledge of what type, or phase, of reconnection is dominant in systems with given characteristic plasma parameters. Here, a number of considerations that require caution in using the diagrams are pointed out. First, two known properties of reconnection are omitted from the diagrams: the history dependence of reconnection and the absence of reconnection for small Lundquist number. Second, the phase diagrams mask a number of features. For one, the predicted transition to Hall reconnection should be thought of as an upper bound on the Lundquist number, and it may happen for considerably smaller values. Second, reconnection is never “slow,” it is always “fast” in the sense that the normalized reconnection rate is always at least 0.01. This has important implications for reconnection onset models. Finally, the definition of the relevant Lundquist number is nuanced and may differ greatly from the value based on characteristic scales. These considerations are important for applications of the phase diagrams. This is demonstrated by example for solar flares, where it is argued that it is unlikely that collisional reconnection can occur in the corona.

  14. Dual condensate and QCD phase transition

    SciTech Connect (OSTI)

    Zhang Bo; Bruckmann, Falk [Institut fuer Theoretische Physik, Universitaet Regensburg, D-93040 Regensburg (Germany); Fodor, Zoltan; Szabo, Kalman K. [Department of Physics, University of Wuppertal, Gaussstr. 20, D-42119 (Germany); Gattringer, Christof [Institut fuer Physik, Universitaet Graz, Universitaetsplatz 5, A-8010 Graz (Austria)

    2011-05-23T23:59:59.000Z

    The dual condensate is a new QCD phase transition order parameter, which connnects confinement and chiral symmetry breaking as different mass limits. We discuss the relation between the fermion spectrum at general boundary conditions and the dual condensate and show numerical results for the latter from unquenched SU(3) lattice configurations.

  15. TWRS Privatization Phase 1 Master Site Plan

    SciTech Connect (OSTI)

    PARAZIN, R.J.

    1999-08-16T23:59:59.000Z

    This document provides a reference for the development of the Tank Waste Remediation System (TWRS) Privatization Phase I site (former Grout Disposal Compound) and the upgrades and extension to the site of the 200 East Area inter- and intra-area roads and various utilities.

  16. Polyolefin composites containing a phase change material

    DOE Patents [OSTI]

    Salyer, Ival O. (Dayton, OH)

    1991-01-01T23:59:59.000Z

    A composite useful in thermal energy storage, said composite being formed of a polyolefin matrix having a phase change material such as a crystalline alkyl hydrocarbon incorporated therein, said polyolefin being thermally form stable; the composite is useful in forming pellets, sheets or fibers having thermal energy storage characteristics; methods for forming the composite are also disclosed.

  17. Phase change thermal energy storage material

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Burrows, Richard W. (Conifer, CO)

    1987-01-01T23:59:59.000Z

    A thermal energy storge composition is disclosed. The composition comprises a non-chloride hydrate having a phase change transition temperature in the range of 70.degree.-95.degree. F. and a latent heat of transformation of at least about 35 calories/gram.

  18. Cavity-QED-based quantum phase gate

    E-Print Network [OSTI]

    Zubairy, M. Suhail; Kim, M.; Scully, Marlan O.

    2003-01-01T23:59:59.000Z

    We describe a quantum phase gate in which the two qubits are represented by the photons in the two modes of the cavity field. The gate is implemented by passing a three-level atom in a cascade configuration through the cavity. The upper levels...

  19. Pancharatnam Phase and Photon Polarization Optics

    E-Print Network [OSTI]

    S. C. Tiwari

    2006-02-04T23:59:59.000Z

    Parallel transport of a vector around a closed curve on the surface of a sphere leads to a direction holonomy which can be related with a geometric phase that is equal to the solid angle subtended by the closed curve. Since Pancharatnam phase is half of the solid angle subtended by the polarization cycle on the Poincare sphere, quantum parallel transport law takes recourse o spin-half wave function to obtain this result. A critique is offered on this factor of half anomaly in the geometric phase, and a natural resolution using Riemann sphere polarization representation is suggested. It is argued that spin angular momentum of photon is fundamental in polarization optics, and new insights are gained based on the hypothesis that two helicity states correspond to two distinct species of photon. This approach leads to the concept of a physical Poincare sphere: nonlinearity and jumps in the Pancharatnam phase find a simple physical explanation while novel features pertaining to the discrete and pulsating sphere are predicted. Paired photon spin zero structure of unpolarized light is also discussed. An outline of possible experimental tests is presented.

  20. Phased Contrast X-Ray Imaging

    ScienceCinema (OSTI)

    Erin Miller

    2012-12-31T23:59:59.000Z

    The Pacific Northwest National Laboratory is developing a range of technologies to broaden the field of explosives detection. Phased contrast X-ray imaging, which uses silicon gratings to detect distortions in the X-ray wave front, may be applicable to mail or luggage scanning for explosives; it can also be used in detecting other contraband, small-parts inspection, or materials characterization.

  1. Phase-locked controlled filament laser

    SciTech Connect (OSTI)

    Salzman, J.; Larsson, A.; Yariv, A.

    1986-09-15T23:59:59.000Z

    A broad area semiconductor laser with induced self-focusing in the form of a phase-locked array of filaments is demonstrated. The multifilamentary laser has a single lobed and nearly diffraction limited far-field pattern, for injection currents up to I-italicapprox. =1.85I-italic/sub th/.

  2. Federal ESPC Process Phase 3: Project Development

    Broader source: Energy.gov [DOE]

    During phase 3 of the energy savings performance contract (ESPC) procurement process, the agency and energy service company (ESCO) work to develop and award a task order. The task order includes descriptions of the energy conservation measures (ECMs); baselines; and financial schedules showing estimated savings, guaranteed savings, itemized prices, and agency payments.

  3. Introduction Spectrum Phases Fractionization Kitaev Honeycomb Model

    E-Print Network [OSTI]

    Fractionization Spin ! Majorana Transformation Key Idea - Factorize the Pauli matrices by moving to a higher by Majorana fermions 2 Gapped and gapless phases 3 Relation to the Toric Code 4 Eect of a magnetic field dimensional subspace Can replace each complex fermionic degree a of freedom with two Majoranas 1 and 2 1 1 = a

  4. 5, 51675182, 2005 Gas-phase reaction

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 5, 5167­5182, 2005 Gas-phase reaction of atomic chlorine with aldehydes D. Rodr´iguez et al Print Version Interactive Discussion EGU Atmos. Chem. Phys. Discuss., 5, 5167­5182, 2005 www.notario@uclm.es) © 2005 Author(s). This work is licensed under a Creative Commons License. 5167 #12;ACPD 5, 5167­5182

  5. PHASE COHERENCE PHENOMENA IN DISORDERED SUPERCONDUCTORS

    E-Print Network [OSTI]

    Simons, Ben

    PHASE COHERENCE PHENOMENA IN DISORDERED SUPERCONDUCTORS A. LAMACRAFT AND B. D. SIMONS Cavendish on the quasi­particle properties of disordered superconductors. Again, attempts to develop a consistent theory has been formulated. Yet, a complete description of the phenomenology of the disordered superconductor

  6. Critical point analysis of phase envelope diagram

    SciTech Connect (OSTI)

    Soetikno, Darmadi; Siagian, Ucok W. R. [Department of Petroleum Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia); Kusdiantara, Rudy, E-mail: rkusdiantara@s.itb.ac.id; Puspita, Dila, E-mail: rkusdiantara@s.itb.ac.id; Sidarto, Kuntjoro A., E-mail: rkusdiantara@s.itb.ac.id; Soewono, Edy; Gunawan, Agus Y. [Department of Mathematics, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia)

    2014-03-24T23:59:59.000Z

    Phase diagram or phase envelope is a relation between temperature and pressure that shows the condition of equilibria between the different phases of chemical compounds, mixture of compounds, and solutions. Phase diagram is an important issue in chemical thermodynamics and hydrocarbon reservoir. It is very useful for process simulation, hydrocarbon reactor design, and petroleum engineering studies. It is constructed from the bubble line, dew line, and critical point. Bubble line and dew line are composed of bubble points and dew points, respectively. Bubble point is the first point at which the gas is formed when a liquid is heated. Meanwhile, dew point is the first point where the liquid is formed when the gas is cooled. Critical point is the point where all of the properties of gases and liquids are equal, such as temperature, pressure, amount of substance, and others. Critical point is very useful in fuel processing and dissolution of certain chemicals. Here in this paper, we will show the critical point analytically. Then, it will be compared with numerical calculations of Peng-Robinson equation by using Newton-Raphson method. As case studies, several hydrocarbon mixtures are simulated using by Matlab.

  7. GLOBAL OPTIMIZATION FOR THE PHASE STABILITY PROBLEM

    E-Print Network [OSTI]

    Neumaier, Arnold

    where nonideal liquid phases can be adequately modeled using the NRTL and UNIQUAC activity coefficient equilibrium one, unlike available local algorithms. For the case of the NRTL equation, the GOP algorithm the NRTL equation. McDonald and Floudas (1994b) also applied a global optimization algorithm when

  8. Fig. 1. Example System phase loads

    E-Print Network [OSTI]

    power system (SPS) consists of various components such as generators, cables, switchboards, load centers Transformer 9 25 12 Alternate path Generator switchboard Bus-tie breaker Generator 1 Generator 3 Generator 2 4 26 G 29 7 8 ABT 3 single phase cables Visualization for Shipboard Power Systems Karen L. Butler

  9. Phase Space and Jet Definitions in SCET

    E-Print Network [OSTI]

    William Man-Yin Cheung; Michael Luke; Saba Zuberi

    2009-10-13T23:59:59.000Z

    We discuss consistent power counting for integrating soft and collinear degrees of freedom over arbitrary regions of phase space in the soft-collinear effective theory (SCET), and illustrate our results at one loop with several jet algorithms: JADE, Sterman-Weinberg and k_T. Consistently applying SCET power-counting in phase space, along with non-trivial zero-bin subtractions, prevents double-counting of final states. The resulting phase-space integrals over soft and collinear regions are individually ultraviolet divergent, but the phase-space ultraviolet divergences cancel in the sum. Whether the soft and collinear contributions are individually infrared safe depends on the jet definition. We show that while this is true at one loop for JADE and Sterman-Weinberg, the k_T algorithm does not factorize into individually infrared safe soft and collinear pieces in dimensional regularization. We point out that this statement depends on the ultraviolet regulator, and that in a cutoff scheme the soft functions are infrared safe.

  10. Visualizing quantum mechanics in phase space

    E-Print Network [OSTI]

    Heiko Bauke; Noya Ruth Itzhak

    2011-01-11T23:59:59.000Z

    We examine the visualization of quantum mechanics in phase space by means of the Wigner function and the Wigner function flow as a complementary approach to illustrating quantum mechanics in configuration space by wave functions. The Wigner function formalism resembles the mathematical language of classical mechanics of non-interacting particles. Thus, it allows a more direct comparison between classical and quantum dynamical features.

  11. For discussion only Phase Two Process

    E-Print Network [OSTI]

    Sheridan, Jennifer

    For discussion only 1 Phase Two Process 1 Revised per Advisory Committee 10/20/11Advisory Reviews Input on Select Opportunities and Charges AE to Begin Solution Development Process Organizes Work, Identifies Business Process Owners and Affected Constituent, and Refines Data Analysis #12;For discussion

  12. Phase Startup Initiative Phases 3 and 4 Test Plan and Test Specification ( OCRWM)

    SciTech Connect (OSTI)

    PAJUNEN, A.L.; LANGEVIN, M.J.

    2000-08-07T23:59:59.000Z

    Construction for the Spent Nuclear Fuel (SNF) Project facilities is continuing per the Level III Baseline Schedule, and installation of the Fuel Retrieval System (FRS) and Integrated Water Treatment System (IWTS) in K West Basin is now complete. In order to accelerate the project, a phased start up strategy to initiate testing of the FRS and IWTS early in the overall project schedule was proposed (Williams 1999). Wilkinson (1999) expands the definition of the original proposal into four functional testing phases of the Phased Startup Initiative (PSI). Phases 1 and 2 are based on performing functional tests using dummy fuel. This test plan provides overall guidance for Phase 3 and 4 tests, which are performed using actual irradiated N fuel assemblies. The overall objective of the Phase 3 and 4 testing is to verify how the FRS and IWTS respond while processing actual fuel. Conducting these tests early in the project schedule will allow identification and resolution of equipment and process problems before they become activities on the start-up critical path. The specific objectives of this test plan are to: Define the Phase 3 and 4 test scope for the FRS and IWTS; Provide detailed test requirements that can be used to write the specific test procedures; Define data required and measurements to be taken. Where existing methods to obtain these do not exist, enough detail will be provided to define required additional equipment; and Define specific test objectives and acceptance criteria.

  13. Modeling and Simulation of Two-Phase Two-Component Flow with Disappearing Nonwetting Phase

    E-Print Network [OSTI]

    Neumann, Rebecca; Ippisch, Olaf

    2012-01-01T23:59:59.000Z

    Carbon Capture and Storage (CCS) is a recently discussed new technology, aimed at allowing an ongoing use of fossil fuels while preventing the produced CO2 to be released to the atmosphere. CSS can be modeled with two components (water and CO2) in two phases (liquid and CO2). To simulate the process, a multiphase flow equation with equilibrium phase exchange is used. One of the big problems arising in two-phase two-component flow simulations is the disappearance of the nonwetting phase, which leads to a degeneration of the equations satisfied by the saturation. A standard choice of primary variables, which is the pressure of one phase and the saturation of the other phase, cannot be applied here. We developed a new approach using the pressure of the nonwetting phase and the capillary pressure as primary variables. One important advantage of this approach is the fact that we have only one set of primary variables that can be used for the biphasic as well as the monophasic case. We implemented this new choice o...

  14. Phase Transformations in Cast Duplex Stainless Steels

    SciTech Connect (OSTI)

    Yoon-Jun Kim

    2004-12-19T23:59:59.000Z

    Duplex stainless steels (DSS) constitute both ferrite and austenite as a matrix. Such a microstructure confers a high corrosion resistance with favorable mechanical properties. However, intermetallic phases such as {sigma} and {chi} can also form during casting or high-temperature processing and can degrade the properties of the DSS. This research was initiated to develop time-temperature-transformation (TTT) and continuous-cooling-transformation (CCT) diagrams of two types of cast duplex stainless steels, CD3MN (Fe-22Cr-5Ni-Mo-N) and CD3MWCuN (Fe-25Cr-7Ni-Mo-W-Cu-N), in order to understand the time and temperature ranges for intermetallic phase formation. The alloys were heat treated isothermally or under controlled cooling conditions and then characterized using conventional metallographic methods that included tint etching, and also using electron microscopy (SEM, TEM) and wavelength dispersive spectroscopy (WDS). The kinetics of intermetallic-phase ({sigma} + {chi}) formation were analyzed using the Johnson-Mehl-Avrami (MA) equation in the case of isothermal transformations and a modified form of this equation in the case of continuous cooling transformations. The rate of intermetallic-phase formation was found to be much faster in CD3MWCuN than CD3MN due mainly to differences in the major alloying contents such as Cr, Ni and Mo. To examine in more detail the effects of these elements of the phase stabilities; a series of eight steel castings was designed with the Cr, Ni and Mo contents systematically varied with respect to the nominal composition of CD3MN. The effects of varying the contents of alloying additions on the formation of intermetallic phases were also studied computationally using the commercial thermodynamic software package, Thermo-Calc. In general, {sigma} was stabilized with increasing Cr addition and {chi} by increasing Mo addition. However, a delicate balance among Ni and other minor elements such as N and Si also exists. Phase equilibria in DSS can be affected by local composition fluctuations in the cast alloy. This may cause discrepancy between thermodynamic prediction and experimental observation.

  15. Preliminary Phase Field Computational Model Development

    SciTech Connect (OSTI)

    Li, Yulan; Hu, Shenyang Y.; Xu, Ke; Suter, Jonathan D.; McCloy, John S.; Johnson, Bradley R.; Ramuhalli, Pradeep

    2014-12-15T23:59:59.000Z

    This interim report presents progress towards the development of meso-scale models of magnetic behavior that incorporate microstructural information. Modeling magnetic signatures in irradiated materials with complex microstructures (such as structural steels) is a significant challenge. The complexity is addressed incrementally, using the monocrystalline Fe (i.e., ferrite) film as model systems to develop and validate initial models, followed by polycrystalline Fe films, and by more complicated and representative alloys. In addition, the modeling incrementally addresses inclusion of other major phases (e.g., martensite, austenite), minor magnetic phases (e.g., carbides, FeCr precipitates), and minor nonmagnetic phases (e.g., Cu precipitates, voids). The focus of the magnetic modeling is on phase-field models. The models are based on the numerical solution to the Landau-Lifshitz-Gilbert equation. From the computational standpoint, phase-field modeling allows the simulation of large enough systems that relevant defect structures and their effects on functional properties like magnetism can be simulated. To date, two phase-field models have been generated in support of this work. First, a bulk iron model with periodic boundary conditions was generated as a proof-of-concept to investigate major loop effects of single versus polycrystalline bulk iron and effects of single non-magnetic defects. More recently, to support the experimental program herein using iron thin films, a new model was generated that uses finite boundary conditions representing surfaces and edges. This model has provided key insights into the domain structures observed in magnetic force microscopy (MFM) measurements. Simulation results for single crystal thin-film iron indicate the feasibility of the model for determining magnetic domain wall thickness and mobility in an externally applied field. Because the phase-field model dimensions are limited relative to the size of most specimens used in experiments, special experimental methods were devised to create similar boundary conditions in the iron films. Preliminary MFM studies conducted on single and polycrystalline iron films with small sub-areas created with focused ion beam have correlated quite well qualitatively with phase-field simulations. However, phase-field model dimensions are still small relative to experiments thus far. We are in the process of increasing the size of the models and decreasing specimen size so both have identical dimensions. Ongoing research is focused on validation of the phase-field model. Validation is being accomplished through comparison with experimentally obtained MFM images (in progress), and planned measurements of major hysteresis loops and first order reversal curves. Extrapolation of simulation sizes to represent a more stochastic bulk-like system will require sampling of various simulations (i.e., with single non-magnetic defect, single magnetic defect, single grain boundary, single dislocation, etc.) with distributions of input parameters. These outputs can then be compared to laboratory magnetic measurements and ultimately to simulate magnetic Barkhausen noise signals.

  16. Power system identification toolbox: Phase two progress

    SciTech Connect (OSTI)

    Trudnowski, D.J.

    1994-08-01T23:59:59.000Z

    This report describes current progress on a project funded by the Bonneville Power Administration (BPA) to develop a set of state-of-the-art analysis software (termed the Power System Identification [PSI] Toolbox) for fitting dynamic models to measured data. The project is being conducted as a three-phase effort. The first phase, completed in late 1992, involved investigating the characteristics of the analysis techniques by evaluating existing software and developing guidelines for best use. Phase Two includes extending current software, developing new analysis algorithms and software, and demonstrating and developing applications. The final phase will focus on reorganizing the software into a modular collection of documented computer programs and developing user manuals with instruction and application guidelines. Phase Two is approximately 50% complete; progress to date and a vision for the final product of the PSI Toolbox are described. The needs of the power industry for specialized system identification methods are particularly acute. The industry is currently pushing to operate transmission systems much closer to theoretical limits by using real-time, large-scale control systems to dictate power flows and maintain dynamic stability. Reliably maintaining stability requires extensive system-dynamic modeling and analysis capability, including measurement-based methods. To serve this need, the BPA has developed specialized system-identification computer codes through in-house efforts and university contract research over the last several years. To make full integrated use of the codes, as well as other techniques, the BPA has commissioned Pacific Northwest Laboratory (PNL) to further develop the codes and techniques into the PSI Toolbox.

  17. Dilute Oxygen Combustion - Phase 3 Report

    SciTech Connect (OSTI)

    Riley, Michael F.

    2000-05-31T23:59:59.000Z

    Dilute Oxygen Combustion (DOC) burners have been successfully installed and operated in the reheat furnace at Auburn Steel Co., Inc., Auburn, NY, under Phase 3 of the Dilute Oxygen Combustion project. Two new preheat zones were created employing a total of eight 6.5 MMBtu/hr capacity burners. The preheat zones provide a 30 percent increase in maximum furnace production rate, from 75 tph to 100 tph. The fuel rate is essentially unchanged, with the fuel savings expected from oxy-fuel combustion being offset by higher flue gas temperatures. When allowance is made for the high nitrogen level and high gas phase temperature in the furnace, measured NOx emissions are in line with laboratory data on DOC burners developed in Phase 1 of the project. Burner performance has been good, and there have been no operating or maintenance problems. The DOC system continues to be used as part of Auburn Steel's standard reheat furnace practice. High gas phase temperature is a result of the high firing density needed to achieve high production rates, and little opportunity exists for improvement in that area. However, fuel and NOx performance can be improved by further conversion on furnace zones to DOC burners, which will lower furnace nitrogen levels. Major obstacles are cost and concern about increased formation of oxide scale on the steel. Oxide scale formation may be enhanced by exposure of the steel to higher concentrations of oxidizing gas components (primarily products of combustion) in the higher temperature zones of the furnace. Phase 4 of the DOC project will examine the rate of oxide scale formation in these higher temperature zones and develop countermeasures that will allow DOC burners to be used successfully in these furnace zones.

  18. Dilute Oxygen Combustion Phase 3 Final Report

    SciTech Connect (OSTI)

    Riley, M.F.; Ryan, H.M.

    2000-05-31T23:59:59.000Z

    Dilute Oxygen Combustion (DOC) burners have been successfully installed and operated in the reheat furnace at Auburn Steel Co., Inc., Auburn, NY, under Phase 3 of the Dilute Oxygen Combustion project. Two new preheat zones were created employing a total of eight 6.5 MMBtu/hr capacity burners. The preheat zones provide a 30 percent increase in maximum furnace production rate, from 75 tph to 100 tph. The fuel rate is essentially unchanged, with the fuel savings expected from oxy-fuel combustion being offset by higher flue gas temperatures. When allowance is made for the high nitrogen level and high gas phase temperature in the furnace, measured NOx emissions are in line with laboratory data on DOC burners developed in Phase 1 of the project. Burner performance has been good and there have been no operating or maintenance problems. The DOC system continues to be used as part of Auburn Steel?s standard reheat furnace practice. High gas phase temperature is a result of the high firing density needed to achieve high production rates, and little opportunity exists for improvement in that area. However, fuel and NOx performance can be improved by further conversion of furnace zones to DOC burners, which will lower furnace nitrogen levels. Major obstacles are cost and concern about increased formation of oxide scale on the steel. Oxide scale formation may be enhanced by exposure of the steel to higher concentrations of oxidizing gas components (primarily products of combustion) in the higher temperature zones of the furnace. Phase 4 of the DOC project will examine the rate of oxide scale formation in these higher temperature zones and develop countermeasures that will allow DOC burners to be used successfully in these furnace zones.

  19. Melting point measurements for quasicrystalline phases. [Al-Mn; icosahedral and decagonal phases

    SciTech Connect (OSTI)

    Knapp, J.A.; Follstaedt, D.M.

    1986-01-01T23:59:59.000Z

    Melting transitions of metastable quasicrystalline phases of Al-Mn have been observed using rapid electron-beam heating of fine-grained icosahedral surface layers. The congruent melting point for icosahedral Al/sub 80/Mn/sub 20/ was directly measured to be 910 +- 20/sup 0/C. Heating to higher temperatures shows another transition which is inferred to correspond to the liquidus of the decagonal phase at 965 +- 20/sup 0/C for 20 at. % Mn. The microstructure and formation kinetics of the decagonal phase are discussed, and its electron diffraction is described.

  20. Metastable phase boundaries of quasicrystalline phases. [Al-Mn; Al-Ru

    SciTech Connect (OSTI)

    Follstaedt, D.M.; Knapp, J.A.

    1987-01-01T23:59:59.000Z

    The melting curve (T/sub 0/) of the metastable icosahedral phase and the liquidus of the decagonal phase of Al-Mn have been obtained for 14 to 22 at. % Mn. Icosahedral Al-Mn has a congruent melting point of 910 +- 20/sup 0/C at 20 at. % Mn, and melts approx.30/sup 0/C lower than crystalline compounds with the same composition. Icosahedral Al/sub 82/Ru/sub 18/ was determined to melt at 1260 +- 30/sup 0/C. These results were obtained by forming single-phase icosahedral alloys with ion beam mixing, and by rapid heating to accurately known temperatures with electron beams.

  1. The effect of distributors on two-phase and three-phase flows in vertical columns

    E-Print Network [OSTI]

    Ouyang, Chie-Jan Paul

    1982-01-01T23:59:59.000Z

    been investigated in a 15. 2-centimeter internal diameter vertical column. Pressure drop across the dis- tributor and average phase hold-up were measured for two- phase and three-phase flows over flow ranges of' superficial gas velocity, 0 ? 25. 9... cm. /sec. and superficial liquid velocity, 0 ? 3. 46 cm. /sec. . Gas hold-up / pressure drop ratios were plotted against superficial gas velocity and liquid flow rate. From these plots it was found that the bubble cap was better at gas...

  2. Phase change based cooling for high burst mode heat loads with temperature regulation above the phase change temperature

    DOE Patents [OSTI]

    The United States of America as represented by the United States Department of Energy (Washington, DC)

    2009-12-15T23:59:59.000Z

    An apparatus and method for transferring thermal energy from a heat load is disclosed. In particular, use of a phase change material and specific flow designs enables cooling with temperature regulation well above the fusion temperature of the phase change material for medium and high heat loads from devices operated intermittently (in burst mode). Exemplary heat loads include burst mode lasers and laser diodes, flight avionics, and high power space instruments. Thermal energy is transferred from the heat load to liquid phase change material from a phase change material reservoir. The liquid phase change material is split into two flows. Thermal energy is transferred from the first flow via a phase change material heat sink. The second flow bypasses the phase change material heat sink and joins with liquid phase change material exiting from the phase change material heat sink. The combined liquid phase change material is returned to the liquid phase change material reservoir. The ratio of bypass flow to flow into the phase change material heat sink can be varied to adjust the temperature of the liquid phase change material returned to the liquid phase change material reservoir. Varying the flowrate and temperature of the liquid phase change material presented to the heat load determines the magnitude of thermal energy transferred from the heat load.

  3. Phase I Archaeological Survey of Parcel ED-3 and Historic Assessement of the Happy Valley Worker Camp Roane County, Tennessee

    SciTech Connect (OSTI)

    New South Associates

    2009-08-17T23:59:59.000Z

    Parcel ED-3 was the location of a portion of 'Happy Valley', a temporary worker housing area occupied from 1943 to 1947 during the construction of the K-25 Oak Ridge Gaseous Diffusion Plant. The project was carried out under subcontract for the Department of Energy. The survey report will be used in the preparation of an Environmental Assessment under the National Environmental Policy Act (NEPA). New South Associates conducted a Phase I Archaeological Survey of Parcel ED-3 at the US Department of Energy's Oak Ridge Reservation in Roane County, Tennessee. The survey was conducted in two parts. The first survey was carried out in 2008 and covered an area measuring approximately 110 acres. The second survey took place in 2009 and focused on 72 acres west of the first survey area. The objective of the surveys was to identify any archaeological remains associated with Happy Valley and any additional sites on the property and to assess these sites for National Register eligibility. New South Associates also conducted a historic assessment to gather information on Happy Valley. This historic assessment was used in conjunction with the archaeological survey to evaluate the significance of the Happy Valley site. Archaeological remains of Happy Valley were located throughout the parcel, but no additional sites were located. The official state site number for Happy Valley is 40RE577. During the two surveys a total of 13 artifact concentrations, 14 isolated finds, and 75 structural features were located. Due to the Happy Valley's stron gassociation with the Manhattan Project, the site is recommended eligible for the National Register of Historic Places under Criterion A.

  4. Percolation behavior of diffusionally evolved two-phase systems simulated using phase field methods

    E-Print Network [OSTI]

    Brunini, Victor Eric

    2008-01-01T23:59:59.000Z

    Percolation is an important phenomenon that dramatically affects the properties of many multi-phase materials. As such, significant prior work has been done to investigate the percolation threshold and critical scaling ...

  5. Detection of mutual phase synchronization in multivariate signals and application to phase ensembles and chaotic data

    E-Print Network [OSTI]

    Hutt, Axel

    of phasic data, we reformulate the K-means cluster algorithm on a flat torus and apply a segmentation index, in which temporal segments of phase- synchronized states are registered. A comparison with results from

  6. Job Title Caretaker 2 Family and Phase: Facility Services Phase 2

    E-Print Network [OSTI]

    Peak, Derek

    operating procedures. The Phase 2 Caretaker leads other casual caretakers in routine maintenance matters in training new caretaking staff in appropriate work procedures. Operates cleaning, leaf blowing and snow: Ability to operate standard cleaning equipment; Effective interpersonal and communication skills

  7. In-phase and anti-phase synchronization in noisy Hodgkin-Huxley neurons

    E-Print Network [OSTI]

    Schmid, Gerhard; Hanggi, Peter

    2013-01-01T23:59:59.000Z

    We numerically investigate the influence of intrinsic channel noise on the dynamical response of delay-coupling in neuronal systems. The stochastic dynamics of the spiking is modeled within a stochastic modification of the standard Hodgkin-Huxley model wherein the delay-coupling accounts for the finite propagation time of an action potential along the neuronal axon. We quantify this delay-coupling of the Pyragas-type in terms of the difference between corresponding presynaptic and postsynaptic membrane potentials. In case of a single neuron we analyze the spiking activity in presence of an autaptic feedback loop. With vanishing channel noise the interspike interval increases with increasing delay time. For an elementary neuronal network consisting of two coupled neurons we detect characteristic stochastic synchronization patterns which exhibit multiple phase-flip bifurcations: The phase-flip bifurcations occur in form of alternate transitions from an in-phase spiking activity towards an anti-phase spiking act...

  8. Potential incorporation of transuranics into uranium phases

    SciTech Connect (OSTI)

    Kim, C. W.; Wronkiewicz, D. J.; Buck, E. C.

    1999-12-07T23:59:59.000Z

    The UO{sub 2} in spent nuclear fuel is unstable under moist oxidizing conditions and will be altered to uranyl oxide hydrate phases. The transuranics released during the corrosion of spent fuel may also be incorporated into the structures of secondary U{sup 6+} phases. The incorporation of radionuclides into alteration products will affect their mobility. A series of precipitation tests were conducted at either 150 or 90 C for seven days to determine the potential incorporation of Ce{sup 4+} and Nd{sup 3+} (surrogates for Pu{sup 4+} and Am{sup 3+}, respectively) into uranium phases. Ianthinite ([U{sub 2}{sup 4+}(UO{sub 2}){sub 4}O{sub 6}(OH){sub 4}(H{sub 2}O){sub 4}](H{sub 2}O){sub 5}) was produced by dissolving uranium oxyacetate in a solution containing copper acetate monohydrate as a reductant. The leachant used in these tests were doped with either 2.1 ppm cerium or 399 ppm neodymium. Inductively coupled plasma-mass spectrometer (ICP-MS) analysis of the solid phase reaction products which were dissolved in a HNO{sub 3} solution indicates that about 306 ppm Ce (K{sub d} = 146) was incorporated into ianthinite, while neodymium contents were much higher, being approximately 24,800 ppm (K{sub d} = 62). Solid phase examinations using an analytical transmission electron microscope/electron energy-loss spectrometer (AEM/EELS) indicate a uniform distribution of Nd, while Ce contents were below detection. Becquerelite (Ca[(UO{sub 2}){sub 6}O{sub 4}(OH){sub 6}]{center_dot}8H{sub 2}O) was produced by dissolving uranium oxyacetate in a solution containing calcium acetate. The leachant in these tests was doped with either 2.1 ppm cerium or 277 ppm neodymium. ICP-MS results indicate that about 33 ppm Ce (K{sub d}=16) was incorporated into becquerelite, while neodymium contents were higher, being approximately 1,300 ppm (K{sub d}=5). Homogeneous distribution of Nd in the solid phase was noted during AEM/EELS examination, and Ce contents were also below detection.

  9. Core-collapse supernova matter: light clusters, pasta phase and phase transitions

    E-Print Network [OSTI]

    Pais, Helena; Newton, William G; Stone, Jirina R

    2015-01-01T23:59:59.000Z

    The pasta phase in core-collapse supernova matter (finite temperatures and fixed proton fractions) is studied within relativistic mean field models. Two different calculations are used for comparison, the Thomas-Fermi (TF) and the Coexisting Phases (CP) approximations. The effects of including light clusters in nuclear matter and the densities at which the transitions between pasta configurations and to uniform matter occur are also investigated. Finally, a comparison with a finite temperature Skyrme-Hartree-Fock calculation is drawn.

  10. OFFICIAL RULES SunShot Prize RACE TO 7-DAY SOLAR OFFICIAL RULES

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

    must have a total system workmanship warranty that covers the installation of solar panels, inverters, racking, patented roof protection systems, roof penetrations,...

  11. OFFICIAL RULES SunShot Prize RACE TO 7-DAY SOLAR OFFICIAL RULES

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

    systems). DOE designed this competition to motivate communities, local jurisdictions, solar installers, and utility companies to collaborate towards one goal of improving the...

  12. UNCLASSIFIED//FOR OFFICIAL USE ONLY UNCLASSIFIED//FOR OFFICIAL USE ONLY

    E-Print Network [OSTI]

    Kasman, Alex

    .gov/vhapublications/ViewPublication.asp?pub_ID=1158 See also, Depleted Uranium Fact Sheet http://www1.va.gov/gulfwar/docs/DepletedUraniumFAQSheet.doc EVALUATION PROTOCOL FOR NON-GULF WAR VETERANS WITH POTENTIAL EXPOSURE TO DEPLETED URANIUM (DU) http://www1.va.gov/vhapublications/ViewPublication.asp?pub_ID=315 EVALUATION PROTOCOL FOR GULF WAR AND IRAQI FREEDOM VETERANS WITH POTENTIAL EXPOSURE TO DEPLETED

  13. OFFICIAL RULES SunShot Prize RACE TO 7-DAY SOLAR OFFICIAL RULES

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in ManyDepartment of Order No. EA-212-AOAHU2014) |

  14. FOR OFFICIAL USE ONLY FOR OFFICIAL USE ONLY CRIMINAL BACKGROUND CHECK INFORMATION

    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 Science (SC) Environmental Assessments (EA) /EmailMolecularGE,OzoneContacts FOIAHow to

  15. Phased Startup Initiative Phases 3 and 4 Test Plan and Test Specification (OCRWM)

    SciTech Connect (OSTI)

    PITNER, A.L.

    2000-02-28T23:59:59.000Z

    Construction for the Spent Nuclear Fuel (SNF) Project facilities is continuing per the Level III Baseline Schedule, and installation of the Fuel Retrieval System (FRS) and Integrated Water Treatment System (IWTS) in K West Basin is now complete. In order to accelerate the project, a phased start up strategy to initiate testing of the FRS and IWTS early in the overall project schedule was proposed (Williams 1999). Wilkinson (1999) expands the definition of the original proposal into four functional testing phases of the Phased Startup Initiative (PSI). Phases 1 and 2 are based on performing functional tests using dummy fuel. These tests are described in separate planning documents. This test plan provides overall guidance for Phase 3 and 4 tests, which are performed using actual irradiated N fuel assemblies. The overall objective of the Phase 3 and 4 testing is to verify how the FRS and IWTS respond while processing actual fuel. Conducting these tests early in the project schedule will allow identification and resolution of equipment and process problems before they become activities on the start-up critical path. The specific objectives of this test plan are to: (1) Define the test scope for the FRS and IWTS; (2) Provide detailed test requirements that can be used to write the specific test procedures; (3) Define data required and measurements to be taken. Where existing methods to obtain these do not exist, enough detail will be provided to define required additional equipment; and (4) Define specific test objectives and acceptance criteria.

  16. Phase transformations in ferrite phase of a duplex stainless steel aged at 500[degree]C

    SciTech Connect (OSTI)

    Shiao, J.J.; Tsai, C.H.; Huang, J.H.; Kai, J.J. (National Tsing Hua Univ., Hsinchu (Taiwan, Province of China). Dept. of Nuclear Engineering)

    1993-12-01T23:59:59.000Z

    Due to their high strength, high corrosion resistance, and good properties of castings, duplex stainless steels are widely used in the recirculation system of nuclear power plants. Although the presence of ferrite phase increases the strength and the resistance to SCC, the ferrite phase also brings about thermal aging embrittlement known as 475 C embrittlement''. The room temperature impact strength can decrease by 80% after aging for 8 years at a temperature as low as 300 C. Much research has been performed on the low temperature embrittlement of duplex stainless steels. It is generally acknowledged that the spinodal decomposition in ferrite phase and precipitation of some other carbides or nickel silicide are responsible for the degradation in mechanical properties of duplex stainless steels at low temperatures. The extent of the degradation was found to be strongly dependent on the composition in ferrite, which is closely related to the change of microstructure. Thus, the exact evolution of phase transformation in ferrite has also drawn a large audience. In this study, using electron microscopy, the authors investigated the phase evolution of ferrite phase in duplex stainless steel, aged at 500 C. up to 10,000 hours.

  17. Critical behaviors and phase transitions of black holes in higher order gravities and extended phase spaces

    E-Print Network [OSTI]

    Zeinab Sherkatghanad; Behrouz Mirza; Zahra Mirzaeyan; Seyed Ali Hosseini Mansoori

    2014-12-16T23:59:59.000Z

    We consider the critical behaviors and phase transitions of Gauss Bonnet-Born Infeld-AdS black holes (GB-BI-AdS) for $d=5,6$ and the extended phase space. We assume the cosmological constant, $\\Lambda$, the coupling coefficient $\\alpha$, and the BI parameter $\\beta$ to be thermodynamic pressures of the system. Having made these assumptions, the critical behaviors are then studied in the two canonical and grand canonical ensembles. We find "reentrant and triple point phase transitions" (RPT-TP) and "multiple reentrant phase transitions" (multiple RPT) with increasing pressure of the system for specific values of the coupling coefficient $\\alpha$ in the canonical ensemble. Also, we observe a reentrant phase transition (RPT) of GB-BI-AdS black holes in the grand canonical ensemble and for $d=6$. These calculations are then expanded to the critical behavior of Born-Infeld-AdS (BI-AdS) black holes in the third order of Lovelock gravity and in the grand canonical ensemble to find a Van der Waals behavior for $d=7$ and a reentrant phase transition for $d=8$ for specific values of potential $\\phi$ in the grand canonical ensemble. Furthermore, we obtain a similar behavior for the limit of $\\beta \\to \\infty$, i.e charged-AdS black holes in the third order of the Lovelock gravity. Thus, it is shown that the critical behaviors of these black holes are independent of the parameter $\\beta$ in the grand canonical ensemble.

  18. Silicotitanate molecular sieve and condensed phases

    DOE Patents [OSTI]

    Nenoff, Tina M. (Albuquerque, NM); Nyman, May D. (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    A new microporous crystalline molecular sieve material having the formula Cs.sub.3 TiSi.sub.3 O.sub.95.cndot.3H.sub.2 O and its hydrothermally condensed phase, Cs.sub.2 TiSi.sub.6 O.sub.15, are disclosed. The microporous material can adsorb divalent ions of radionuclides or other industrial metals such as chromium, nickel, lead, copper, cobalt, zinc, cadmium, barium, and mercury, from aqueous or hydrocarbon solutions. The adsorbed metal ions can be leached out for recovery purposes or the microporous material can be hydrothermally condensed to a radiation resistant, structurally and chemically stable phase which can serve as a storage waste form for radionuclides.

  19. Laser having a nonlinear phase conjugating reflector

    SciTech Connect (OSTI)

    Wang, V.; Yariv, A.

    1980-11-11T23:59:59.000Z

    A laser is described which self-corrects for distortions introduced into the laser beam wavefronts by aberrations and time-varying phenomena internal to the laser. The improved laser includes a partially transmissive first reflecting element, an aperture stop, a lasing medium and a nonlinear phase conjugate reflecting device as the second reflecting element. During laser operation, aberrated wavefronts impinging upon the second reflecting element are reflected as the phase conjugate waveform thereof. The aperture stop restricts laser operation to the fundamental mode which allows only corrected, unaberrated waves to pass through the aperture stop and to subsequently exit the laser. Four embodiments are described utilizing stimulated brillouin scattering (Sbs), four-wave mixing, three-wave mixing and photon echo devices as the second reflecting element.

  20. Tunable hyperbolic metamaterials utilizing phase change heterostructures

    SciTech Connect (OSTI)

    Krishnamoorthy, Harish N. S.; Menon, Vinod M., E-mail: vmenon@qc.cuny.edu [Department of Physics, Queens College of the City University of New York and Center for Photonic and Multiscale Nanomaterials, Queens, New York 11367 (United States); Department of Physics, Graduate Center of the City University of New York, New York, New York 10016 (United States); Zhou, You; Ramanathan, Shriram [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Narimanov, Evgenii [Birck Nanotechnology Center, School of Computer and Electrical Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)

    2014-03-24T23:59:59.000Z

    We present a metal-free tunable anisotropic metamaterial where the iso-frequency surface is tuned from elliptical to hyperbolic dispersion by exploiting the metal-insulator phase transition in the correlated material vanadium dioxide (VO{sub 2}). Using VO{sub 2}-TiO{sub 2} heterostructures, we demonstrate the transition in the effective dielectric constant parallel to the layers to undergo a sign change from positive to negative as the VO{sub 2} undergoes the phase transition. The possibility to tune the iso-frequency surface in real time using external perturbations such as temperature, voltage, or optical pulses creates new avenues for controlling light-matter interaction.

  1. Phases of a Type Ia supernova explosion

    E-Print Network [OSTI]

    J. C. Niemeyer

    1998-02-13T23:59:59.000Z

    In the framework of the Chandrasekhar mass white dwarf model for Type Ia supernovae, various stages of the explosion are described in terms of the burning regimes of the thermonuclear flame front. In the early flamelet regime following the ``smoldering'' phase prior to the explosion, the flame is sufficiently thin and fast to remain laminar on small scales. As the white dwarf density declines, the thermal flame structure becomes subject to penetration by turbulent eddies, and it enters the ``distributed burning'' regime. A specific control parameter for this transition is proposed. Furthermore, we outline an argument for the coincidence of the transition between burning regimes with the onset of a deflagration-detonation-transition (DDT) in the late phase of the explosion.

  2. Phase Transformation in Cast Superaustenitic Stainless Steels

    SciTech Connect (OSTI)

    Nathaniel Steven Lee Phillips

    2006-12-12T23:59:59.000Z

    Superaustenitic stainless steels constitute a group of Fe-based alloys that are compositionally balanced to have a purely austenitic matrix and exhibit favorable pitting and crevice corrosion resistant properties and mechanical strength. However, intermetallic precipitates such as sigma and Laves can form during casting or exposure to high-temperature processing, which degrade the corrosion and mechanical properties of the material. The goal of this study was to accurately characterize the solid-solid phase transformations seen in cast superaustenitic stainless steels. Heat treatments were performed to understand the time and temperature ranges for intermetallic phase formations in alloys CN3MN and CK3MCuN. Microstructures were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy and wavelength dispersive spectroscopy (EDS, WDS). The equilibrium microstructures, composed primarily of sigma and Laves within purely austenitic matrices, showed slow transformation kinetics. Factors that determine the extent of transformation, including diffusion, nucleation, and growth, are discussed.

  3. Phase Structure of Higher Spin Black Holes

    E-Print Network [OSTI]

    Abhishek Chowdhury; Arunabha Saha

    2015-02-12T23:59:59.000Z

    We revisit the study of the phase structure of higher spin black holes carried out in arXiv$:1210.0284$ using the "canonical formalism". In particular we study the low as well as high temperature regimes. We show that the Hawking-Page transition takes place in the low temperature regime. The thermodynamically favoured phase changes from conical surplus to black holes and then again to conical surplus as we increase temperature. We then show that in the high temperature regime the diagonal embedding gives the appropriate description. We also give a map between the parameters of the theory near the IR and UV fixed points. This makes the "good" solutions near one end map to the "bad" solutions near the other end and vice versa.

  4. A swollen phase observed between the liquid-crystalline phase and the interdigitated phase induced by pressure and/or adding ethanol in DPPC aqueous solution

    E-Print Network [OSTI]

    H. Seto; M. Hishida; H. Nobutou; N. L. Yamada; M. Nagao; T. Takeda

    2006-02-21T23:59:59.000Z

    A swollen phase, in which the mean repeat distance of lipid bilayers is larger than the other phases, is found between the liquid-crystalline phase and the interdigitated gel phase in DPPC aqueous solution. Temperature, pressure and ethanol concentration dependences of the structure were investigated by small-angle neutron scattering, and a bending rigidity of lipid bilayers was by neutron spin echo. The nature of the swollen phase is similar to the anomalous swelling reported previously. However, the temperature dependence of the mean repeat distance and the bending rigidity of lipid bilayers are different. This phase could be a precursor to the interdigitated gel phase induced by pressure and/or adding ethanol.

  5. Light plasmon mode in the CFL phase

    E-Print Network [OSTI]

    Malekzadeh, H; Rischke, Dirk H.

    2007-01-01T23:59:59.000Z

    The self-energies and the spectral densities of longitudinal and transverse gluons at zero temperature in the color-flavor-locked (CFL) phase are calculated. There appears a collective excitation, a light plasmon, at energies smaller than two times the gap parameter and momenta smaller than about eight times the gap. The minimum in the dispersion relation of this mode at some nonzero value of momentum corresponds to the van Hove singularity.

  6. Light plasmon mode in the CFL phase

    E-Print Network [OSTI]

    H. Malekzadeh; Dirk H. Rischke

    2006-11-10T23:59:59.000Z

    The self-energies and the spectral densities of longitudinal and transverse gluons at zero temperature in the color-flavor-locked (CFL) phase are calculated. There appears a collective excitation, a light plasmon, at energies smaller than two times the gap parameter and momenta smaller than about eight times the gap. The minimum in the dispersion relation of this mode at some nonzero value of momentum corresponds to the van Hove singularity.

  7. Phases of Atom-Molecule Vortex Matter

    SciTech Connect (OSTI)

    Woo, S. J.; Bigelow, N. P. [Department of Physics and Astronomy, University of Rochester, Rochester, New York (United States); Park, Q-Han [Department of Physics, Korea University, Seoul (Korea, Republic of)

    2008-03-28T23:59:59.000Z

    We study ground state vortex configurations in a rotating atom-molecule Bose-Einstein condensate. It is found that the coherent coupling between the atomic and molecular condensates can render a pairing of atomic and molecular vortices into a composite structure that resembles a carbon dioxide molecule. Structural phase transitions of vortex lattices are also explored through different physical parameters including the rotational frequency of the system.

  8. Industrial waste needs assessment. Phase 1

    SciTech Connect (OSTI)

    Radel, R.J.; Willis, M.P. [eds.

    1993-10-01T23:59:59.000Z

    In January of 1992 a team was put together to begin the process of assessing the industrial waste needs of the Tennessee Valley. The team consisted of representatives from the various TVA Resource Group organizations. This initial team recommended as a starting point in the process a two-phase market research effort. A second team was then commissioned to conduct the first phase of this market research effort. The first phase of that marketing effort is now complete. This report contains an analysis of the data obtained through interviews of more than 168 individuals representing a similar number of organizations. A total of 37 TVA Resource Group employees were involved in the contact process from various organizations. In addition, the appendices provide summaries of the data used in designing the process and the reports of the Contact Coordinators (who were responsible for a series of visits). As a result of the data analysis, the Review Team makes the following recommendations: 1. Publish this report and distribute to the new management within TVA Resource Group as well as to all those participating as contacts, visitors, and contact coordinators. 2. The Resource Group management team, or management teams within each of the respective organizations within Resource Group, appoint Phase 2 assessement teams for as many of the problem areas listed in Table III as seem appropriate. We further recommend that, where possible, cross-organizational teams be used to examine individual problem areas. 3. Make this report available within Generating and Customer Groups, especially to the Customer Service Centers. 4. Establish a process to continue follow up with each of the contacts made in this assessment.

  9. Fidelity Decay for Phase Space Displacements

    E-Print Network [OSTI]

    Diego V. Bevilaqua; Eric J. Heller

    2004-09-03T23:59:59.000Z

    In this letter we analyse the behavior of fidelity decay under a very specific kind of perturbation: phase space displacements. Under these perturbations, systems will decay following the Lyapunov regime only. Others universal regimes discussed in the literature are not presented in this case; instead, for small values of the perturbation we observe quantum freeze of the fidelity. We also show that it is possible to connect this result with the incoherent neutron scattering problem

  10. Geometric phases for generalized squeezed coherent states

    E-Print Network [OSTI]

    S. Seshadri; S. Lakshmibala; V. Balakrishnan

    1999-05-31T23:59:59.000Z

    A simple technique is used to obtain a general formula for the Berry phase (and the corresponding Hannay angle) for an arbitrary Hamiltonian with an equally-spaced spectrum and appropriate ladder operators connecting the eigenstates. The formalism is first applied to a general deformation of the oscillator involving both squeezing and displacement. Earlier results are shown to emerge as special cases. The analysis is then extended to multiphoton squeezed coherent states and the corresponding anholonomies deduced.

  11. New silicotitanate molecular sieve and condensed phases

    SciTech Connect (OSTI)

    Nenoff, Tina M.; Nyman, May D.

    2000-11-01T23:59:59.000Z

    This patent application relates to an invention for a new silicotitanate molecular sieve ion exchange material for the capture and immobilization of divalent cations from aqueous and/or hydrocarbon solutions, including elements such as radioactive strontium or industrial RCRA metal cations. The invention also relates to the ability to either recycle the captured metal for future use or to encapsulate the cation through thermal treatment of the molecular sieve to a condensed phase.

  12. Finite Temperature Phase Transition in $?^6$ potential

    E-Print Network [OSTI]

    Hatem Widyan

    2008-12-29T23:59:59.000Z

    The temperature dependance of the action in the thin-wall and thick-wall limits is obtained analytically for the $\\phi^6$ scalar potential. The nature of the phase transition is investigated from the quantum tunnelling regime at low temperatures to the thermal hopping regime at high temperatures. It is first-order for the case of a thin wall while for the thick wall it is second- order.

  13. Robust phase sensitive inversion recovery imaging

    E-Print Network [OSTI]

    Garach, Ravindra Mahendrakumar

    2005-11-01T23:59:59.000Z

    - echo sequence on a 15 Tesla MR scanner (a) Real image; (b) Magnitude reconstruction; (c) PSIR image. : : : : : : : : : : : : : : 60 33 Phase sensitive reconstruction of data acquired using a fast spin- echo sequence on a 15 Tesla MR scanner (a) Real... of data acquired using a fast spin- echo sequence on a 15 Tesla MR scanner (a) Real image; (b) Magnitude reconstruction; (c) PSIR image reconstructed with in- verted polarity. This example demonstrates the problem of global polarity determination...

  14. Associative memory in phasing neuron networks

    SciTech Connect (OSTI)

    Nair, Niketh S [ORNL; Bochove, Erik J. [United States Air Force Research Laboratory, Kirtland Air Force Base; Braiman, Yehuda [ORNL

    2014-01-01T23:59:59.000Z

    We studied pattern formation in a network of coupled Hindmarsh-Rose model neurons and introduced a new model for associative memory retrieval using networks of Kuramoto oscillators. Hindmarsh-Rose Neural Networks can exhibit a rich set of collective dynamics that can be controlled by their connectivity. Specifically, we showed an instance of Hebb's rule where spiking was correlated with network topology. Based on this, we presented a simple model of associative memory in coupled phase oscillators.

  15. Vapor-phase heat-transport system

    SciTech Connect (OSTI)

    Hedstrom, J.C.

    1983-01-01T23:59:59.000Z

    A vapor-phase heat-transport system is being tested in one of the passive test cells at Los Alamos. The system consists of one selective-surface collector and a condenser inside a water storage tank. The refrigerant, R-11, can be returned to the collector by gravity or with a pump. Results from several operating configurations are presented, together with a comparison with other passive systems. A new self-pumping concept is presented.

  16. Detecting Noncommutative Phase Space by Aharonov-Bohm Effect

    E-Print Network [OSTI]

    Shi-Dong Liang; Haoqi Li; Guang-Yao Huang

    2015-02-02T23:59:59.000Z

    Noncommutative phase space plays an essential role in particle physics and quantum gravity at the Planck scale. However, direct experimental evidence or observation to demonstrate the existence of noncommutative phase space is still lacking.We study a quantum ring in noncommutative phase space based on the Seiberg-Witten map and give the effective magnetic potential and field coming from the noncommutative phase space, which induces the persistent current in the ring. We introduce two variables as two signatures to detect the noncommutative phase space and propose an experimental scheme to detect the noncommutative phase space as long as we measure the persistent current and the external magnetic flux.

  17. Fe-containing phases in hydrated cements

    SciTech Connect (OSTI)

    Dilnesa, B.Z., E-mail: belay.dilnesa@gmail.com [Empa, Laboratory for Concrete and Construction Chemistry, Überlandstrasse 129, 8600 Dübendorf (Switzerland); Wieland, E. [Paul Scherrer Institute, Laboratory for Waste Management, 5232 Villigen PSI (Switzerland); Lothenbach, B. [Empa, Laboratory for Concrete and Construction Chemistry, Überlandstrasse 129, 8600 Dübendorf (Switzerland); Dähn, R. [Paul Scherrer Institute, Laboratory for Waste Management, 5232 Villigen PSI (Switzerland); Scrivener, K.L. [Ecole Polytechnique Federal de Lausanne (EPFL), Laboratory for Construction Materials, 1015 Lausanne (Switzerland)

    2014-04-01T23:59:59.000Z

    In this study synchrotron X-ray absorption spectroscopy (XAS) has been applied, an element specific technique which allows Fe-containing phases to be identified in the complex mineral mixture of hydrated cements. Several Fe species contributed to the overall Fe K-edge spectra recorded on the cement samples. In the early stage of cement hydration ferrite was the dominant Fe-containing mineral. Ferrihydrite was detected during the first hours of the hydration process. After 1 day the formation of Al- and Fe-siliceous hydrogarnet was observed, while the amount of ferrihydrite decreased. The latter finding agrees with thermodynamic modeling, which predicts the formation of Fe-siliceous hydrogarnet in Portland cement systems. The presence of Al- and Fe-containing siliceous hydrogarnet was further substantiated in the residue of hydrated cement by performing a selective dissolution procedure. - Highlights: • Fe bound to ferrihydrite at early age hydration • Fe found to be stable in siliceous hydrogarnet at longer term age hydration • Fe-containing AFt and AFm phases are less stable than siliceous hydrogarnet. • The study demonstrates EXAFS used to identify amorphous or poorly crystalline phases.

  18. The control of confined vapor phase explosions

    SciTech Connect (OSTI)

    Scilly, N.F. [Laporte plc, Widnes (United Kingdom); Owen, O.J.R. [Fine Organics, Ltd., Middlesborough (United Kingdom); Wilberforce, J.K. [Solvay SA, Brussels (Belgium)

    1995-12-31T23:59:59.000Z

    The probability of, for example, a fire or explosion occurring during a process operation is related both to the fire-related properties of the materials used, such as flash point, flammable limits etc., i.e. the material or intrinsic factors, and the nature of the operation and the equipment used, i.e. the extrinsic factors. The risk, or frequency of occurrence, of other hazards such as reaction runaway, major toxic release etc. can be determined in a similar manner. For a vapor phase explosion (and a fire) the probability of the event is the product of the probability of generating a flammable atmosphere and the probability of ignition. Firstly, materials may be coded using properties that are relevant to the hazard in question. Secondly, different operations have different degrees of risk and these risks are assigned as Low, Medium, High etc. according to criteria outlined here. Combination of these two factors will then be a measure of the overall risk of the operation with the specified material and may be used to define operating standards. Currently, the hazard/risk of a vapor phase explosions is examined by this method but in due course dust explosions, fires, condensed phase explosions, reaction runaways, physical explosions, major toxic releases and incompatibility will be included.

  19. ADMX Phase II : Relocation and Millikelvin Cooling

    SciTech Connect (OSTI)

    Heilman, Jesse; Tracy, Kyle [University of Washington, Center for Experimental Nuclear Physics and Astrophysics, Seattle, Washington 98195 (United States)

    2010-08-30T23:59:59.000Z

    Low mass axions are an attractive candidate for making up dark matter. While there are several models for how the Axion couples with other matter, were they to be the majority of the local galactic dark matter halo, they would have a number density on the order of 10{sup 14} cm{sup -3}. The Axion Dark Matter eXperiment (ADMX) is a microwave cavity experiment searching for axion Dark Matter via the axion's electromagnetic coupling. While the original ADMX did not see evidence of axions, the experiment is planned to go through two phases of upgrades to expand its sensitivity and provide a definitive search for axion dark matter. The first phase established the use of a SQUID amplifier which can reduce the amplifier noise temperature to the 100 mK range. In the second phase we will first move the experiment from LLNL to CENPA at the University of Washington. Once the experiment has been moved successfully we will install a dilution refrigerator to cool the cavity to the 100 mK range thus increasing the sensititivity to the level required to scan the remainder of the allowed model space.

  20. Phase separation and coarsening in active matter

    E-Print Network [OSTI]

    Giuseppe Gonnella; Davide Marenduzzo; Antonio Suma; Adriano Tiribocchi

    2015-02-08T23:59:59.000Z

    Active systems, or active matter, are self-driven systems which live, or function, far from equilibrium - a paradigmatic example which we focus on here is provided by a suspension of self-motile particles. Active systems are far from equilibrium because their microscopic constituents constantly consume energy from the environment in order to do work, for instance to propel themselves. The nonequilibrium nature of active matter leads to a variety of non-trivial intriguing phenomena. An important one which has recently been the subject of intense interest among biological and soft matter physicists is that of the so-called "motility-induced phase separation", whereby self-propelled particles accumulate into clusters in the absence of any explicit attractive interactions between them. Here we review the physics of motility-induced phase separation, and discuss this phenomenon within the framework of the classic physics of phase separation and coarsening. We also discuss cases where the coarsening may be arrested, either in theories for bacterial colonies or in experiments. Most of this work will focus on the case of run-and-tumble and active Brownian particles in the absence of solvent-mediated hydrodynamic interactions - we will briefly discuss at the end their role, which is not currently fully understood in this context.

  1. An economical single to three phase converter for induction motors

    E-Print Network [OSTI]

    Di Zerega, Philp Van Uytandaele

    1994-01-01T23:59:59.000Z

    There are several different types of single to three phase converters for induction motors available today. However, many of the presently available phase converters suffer from disadvantages such as high cost or low performance. An economical...

  2. Exotic phases and quantum criticality in gapless correlated electron systems

    E-Print Network [OSTI]

    Mross, David Fabian

    2013-01-01T23:59:59.000Z

    In this thesis, I theoretically studied exotic phases of matter than arise due to strong interactions between electrons in three different scenarios. Firstly, at a stripe melting phase transition, which may be relevant for ...

  3. Gas-phase electron diffraction studies of unstable molecules 

    E-Print Network [OSTI]

    Noble-Eddy, Robert

    2009-01-01T23:59:59.000Z

    Gas-phase electron diffraction (GED) is the only viable technique for the accurate structural study of gas-phase molecules that contain more than ~10 atoms. Recent advances in Edinburgh have made it possible to study ...

  4. Laser and Electrical Current Induced Phase Transformation of...

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

    Current Induced Phase Transformation of In2Se3 Semiconductor thin film on Si(111) . Laser and Electrical Current Induced Phase Transformation of In2Se3 Semiconductor thin film...

  5. Formation Of The Spinel Phase In The Layered Composite Cathode...

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

    Of The Spinel Phase In The Layered Composite Cathode Used In Li-Ion Batteries. Formation Of The Spinel Phase In The Layered Composite Cathode Used In Li-Ion Batteries. Abstract:...

  6. allotropic phase change: Topics by E-print Network

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

    them. Our ultimate goal is the 3D->4D transition, which is holographically dual to the phase transition between the baryonic and the quarkyonic phases of cold nuclear matter....

  7. aldehydes solid phase: Topics by E-print Network

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

    considerations of stressed epitaxial growth from the solid phase N.G. Rudawski* and K A dual-timescale model of stressed solid-phase epitaxial growth is developed to provide a...

  8. aqueous phase source: Topics by E-print Network

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

    are different. This phase could be a precursor to the interdigitated gel phase induced by pressure andor adding ethanol. H. Seto; M. Hishida; H. Nobutou; N. L. Yamada; M. Nagao;...

  9. NUMERICAL MODELING FOR MULTIPHASE INCOMPRESSIBLE FLOW WITH PHASE CHANGE

    E-Print Network [OSTI]

    Abdou, Mohamed

    NUMERICAL MODELING FOR MULTIPHASE INCOMPRESSIBLE FLOW WITH PHASE CHANGE Xiao-Yong Luo, Ming-Jiu Ni for multiphase flows. A con- tinuum surface force (CSF) tension model is used in the present cases. Phase change

  10. Gearbox Reliability Collaborative - Phase 1 and 2 Overview (Presentation)

    SciTech Connect (OSTI)

    Link, H.

    2011-08-01T23:59:59.000Z

    The presentation given at the Wind Turbine Reliability Workshop at Sandia National Laboratories, August 2-3, 2011, serves as an overview for the findings from the Gearbox Reliability Collaborative Project Report: Findings from Phase 1 and Phase 2 Testing

  11. RADIO FREQUENCY PHASE IN THE FEL SECTION OF A TBA

    E-Print Network [OSTI]

    Kuenning, R.W.

    2008-01-01T23:59:59.000Z

    Amplitude Control of the Radio Frequency Wave in the Two-Madison, WI, August 21-27, 1986 RADIO FREQUENCY PHASE IN THEAC03-76SF00098 LBL- 223Pl RADIO FREQUENCY PHASE IN THE FEL

  12. Spectroscopic Studies of the Phase Transition in Ammonia Borane...

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

    Studies of the Phase Transition in Ammonia Borane: Raman spectroscopy of single crystal NH3BH3 as a function of Spectroscopic Studies of the Phase Transition in Ammonia Borane:...

  13. Geometric phases in quantum control disturbed by classical stochastic processes

    E-Print Network [OSTI]

    David Viennot

    2012-08-01T23:59:59.000Z

    We describe the geometric (Berry) phases arising when some quantum systems are driven by control classical parameters but also by outer classical stochastic processes (as for example classical noises). The total geometric phase is then divided into an usual geometric phase associated with the control parameters and a second geometric phase associated with the stochastic processes. The geometric structure in which these geometric phases take place is a composite bundle (and not an usual principal bundle), which is explicitely built in this paper. We explain why the composite bundle structure is the more natural framework to study this problem. Finally we treat a very simple example of a two level atom driven by a phase modulated laser field with a phase instability described by a gaussian white noise. In particular we compute the average geometric phase issued from the noise.

  14. A phase-field study of ternary multiphase microstructures

    E-Print Network [OSTI]

    Cogswell, Daniel A. (Daniel Aaron)

    2010-01-01T23:59:59.000Z

    A diffuse-interface model for microstructures with an arbitrary number of components and phases was developed from basic thermodynamic and kinetic principles and applied to the study of ternary eutectic phase transformations. ...

  15. Dynamic Phase Filtering with Integrated Optical Ring Resonators

    E-Print Network [OSTI]

    Adams, Donald Benjamin

    2011-10-21T23:59:59.000Z

    can then help extract complex spectral information. Broadband photonic RF phase shifting for beam steering of a phased array antenna is also shown using dynamically tunable integrated optical ring resonators. Finally all-optical pulse compression...

  16. Probing the size and environment induced phase transformation...

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

    the size and environment induced phase transformation in CdSe quantum dots. Probing the size and environment induced phase transformation in CdSe quantum dots. Abstract: The...

  17. An economical single to three phase converter for induction motors 

    E-Print Network [OSTI]

    Di Zerega, Philp Van Uytandaele

    1994-01-01T23:59:59.000Z

    There are several different types of single to three phase converters for induction motors available today. However, many of the presently available phase converters suffer from disadvantages such as high cost or low performance. An economical...

  18. Reduction of Quantum Phase Fluctuations Implies Antibunching of Photon

    E-Print Network [OSTI]

    Prakash Gupta; Anirban Pathak

    2007-01-25T23:59:59.000Z

    A clear physical meaning of the Carruthers-Nieto symmetric quantum phase fluctuation parameter (U) has been provided in Susskind Glogower and Barnett Pegg formalism of quantum phase and it is shown that the reduction of phase fluctuation parameter U with respect to its coherent state value corresponds to an antibunched state. Thus nonclassicality of a state may be manifested through the phase fluctuation parameters. As examples, quantum phase fluctuations in different optical processes, such as four wave mixing, six wave mixing and second harmonic generation have been studied by using Carruthers-Nieto quantum phase fluctuation parameters. The operators required for the calculation of quantum phase fluctuations are expressed in closed analytical forms (up to second order in coupling constant). It is also found that the reduction of phase fluctuations compared to their initial values are possible in all three cases which means nonclassical (antibunched) state exists in all these cases.

  19. Kinetic and Performance Studies of the Regeneration Phase of...

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

    Studies of the Regeneration Phase of Model PtRhBa NOx Traps for Design and Optimization Kinetic and Performance Studies of the Regeneration Phase of Model PtRhBa NOx...

  20. The Western Wind and Solar Integration Study Phase 2

    Office of Energy Efficiency and Renewable Energy (EERE)

    Greg Brinkman will present the results of the Western Wind and Solar Integration Study (WWSIS), Phase 2. This study, which follows the first phase of WWSIS, focuses on potential emissions and wear...

  1. Geometric phase of a qubit driven by a phase noise laser under non-Markovian dynamics

    SciTech Connect (OSTI)

    Berrada, K., E-mail: kberrada@ictp.it

    2014-01-15T23:59:59.000Z

    Robustness of the geometric phase (GP) with respect to the environmental effects is a basic condition for an effective quantum computation. Here, we study quantitatively the GP of a two-level atom system driven by a phase noise laser under non-Markovian dynamics in terms of different parameters involved in the whole system. We find that with the change of the damping coupling, the GP is very sensitive to its properties exhibiting long collapse and revival phenomena, which play a significant role in enhancing the stabilization and control of the system dynamics. Moreover, we show that the GP can be considered as a tool for testing and characterizing the nature of the qubit–environment coupling. Due to the significance of how a system is quantum correlated with its environment in the construction of a scalable quantum computer, the entanglement dynamics between the qubit with its environment under external classical noise is evaluated and investigated during the time evolution. -- Highlights: •Geometric phase under noise phase laser. •Dynamics of the geometric phase under non-Markovian dynamics in the presence of classical noise. •Solution of master equation of the system in terms atomic inversion. •Nonlocal correlation between the system and its environment under non-Markovianity.

  2. ORIGINAL PAPER Rutile/TiO2II phase equilibria

    E-Print Network [OSTI]

    Zhang, Youxue

    ­10 GPa. The phase diagram proposed by Dachille et al. (1968) was criticized by Jamieson and Olinger (1969

  3. Orthogonal-Phase-Velocity Propagation of Electromagnetic Plane Waves

    E-Print Network [OSTI]

    Tom G. Mackay; Akhlesh Lakhtakia

    2005-11-30T23:59:59.000Z

    In an isotropic, homogeneous, nondissipative, dielectric-magnetic medium that is simply moving with respect to an inertial reference frame, planewave solutions of the Maxwell curl postulates can be such that the phase velocity and the time-averaged Poynting vector are mutually orthogonal. Orthogonal-phase-velocity propagation thus adds to the conventional positive-phase-velocity propagation and the recently discovered negative-phase-velocity propagation that is associated with the phenomenon of negative refraction.

  4. Nickel/ruthenium catalyst and method for aqueous phase reactions

    DOE Patents [OSTI]

    Elliott, Douglas C. (Richland, WA); Sealock, John L. (West Richland, WA)

    1998-01-01T23:59:59.000Z

    A method of hydrogenation using a catalyst in the form of a plurality of porous particles wherein each particle is a support having nickel metal catalytic phase or reduced nickel deposited thereon in a first dispersed phase and an additional ruthenium metal deposited onto the support in a second dispersed phase. The additional ruthenium metal is effective in retarding or reducing agglomeration or sintering of the nickel metal catalytic phase thereby increasing the life time of the catalyst during hydrogenation reactions.

  5. Dual-phase Cr-Ta alloys for structural applications

    DOE Patents [OSTI]

    Liu, Chain T. (Oak Ridge, TN); Brady, Michael P. (Oak Ridge, TN); Zhu, Jiahong (Knoxville, TN); Tortorelli, Peter F. (Knoxville, TN)

    2001-01-01T23:59:59.000Z

    Dual phase alloys of chromium containing 2 to 11 atomic percent tantalum with minor amounts of Mo, Cr, Ti, Y, La, Cr, Si and Ge are disclosed. These alloys contain two phases including Laves phase and Cr-rich solid solution in either eutectic structures or dispersed Laves phase particles in the Cr-rich solid solution matrix. The alloys have superior mechanical properties at high temperature and good oxidation resistance when heated to above 1000.degree. C. in air.

  6. aquaculture experiment phase: Topics by E-print Network

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

    complementarity and entanglement. Utilizing the phase selective manipulations with enviroment, it is demonstrated how the complementarity particularly induces a preservation...

  7. Finite thermoplasticity with phase changes based on isomorphisms

    E-Print Network [OSTI]

    Dashkovskiy, Sergey

    thermomechanical model for casting process of aluminium alloy. Such phase changes occur not only in ferrous alloys

  8. Aurora Organic Dairy Phase III: Corporate Sustainability Report

    E-Print Network [OSTI]

    Edwards, Paul N.

    Aurora Organic Dairy Phase III: Corporate Sustainability Report Rosemary Lapka, Neesha Modi, Lauren Start and David Weinglass Report No. CSS11-07 April 19, 2011 #12;Aurora Organic Dairy Phase III Keoleian, Professor #12;Document Description AURORA ORGANIC DAIRY PHASE III: CORPORATE SUSTAINABILITY

  9. Polymer-stabilized blue phase liquid crystals: a tutorial [Invited

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Polymer-stabilized blue phase liquid crystals: a tutorial [Invited] Jin Yan and Shin-Tson Wu@mail.ucf.edu Abstract: Blue phase liquid crystals exhibit several attractive features, such as self-assembled three, and submillisecond response time. This tutorial gives step-by-step introduction on basic blue- phase materials

  10. Autoresonant Phase-Space Holes in Plasmas L. Friedland,1

    E-Print Network [OSTI]

    Friedland, Lazar

    , for the first time, analyzes dynamics of the whole excitation process from the initial fluid-type phase locking are formed and controlled in a plasma by adiabatic nonlinear phase locking (autoresonance) with a chirped phase locking (autoresonance) and subsequent exci- tation of a large amplitude wave controlled

  11. Simple, Broadband Relative Phase Measurement of Intermodulation Products

    E-Print Network [OSTI]

    . The method uses three phase-locked sources and common equipment found in a microwave laboratory. I large-signal excitation. The majority of these techniques can only measure the phase of harmonics DUT, but was used in [2] to measure the phase of intermodulation products in two-tone excitation

  12. Proceedings of the Third EPRI Phased Array Ultrasound Seminar

    SciTech Connect (OSTI)

    None

    2003-12-01T23:59:59.000Z

    Phased array technology for ultrasonic examination is providing innovative solutions for nuclear in-service examination applications. EPRI has been a prime mover in the development and deployment of phased array ultrasound applications in the domestic nuclear market over the past decade. As part of this strategic effort, EPRI has hosted a series of seminars on phased array technology and its applications.

  13. Universal topological phase of 2D stabilizer codes

    E-Print Network [OSTI]

    H. Bombin; Guillaume Duclos-Cianci; David Poulin

    2011-03-23T23:59:59.000Z

    Two topological phases are equivalent if they are connected by a local unitary transformation. In this sense, classifying topological phases amounts to classifying long-range entanglement patterns. We show that all 2D topological stabilizer codes are equivalent to several copies of one universal phase: Kitaev's topological code. Error correction benefits from the corresponding local mappings.

  14. Nanoscale Thermotropic Phase Transitions Enhance Photothermal Microscopy Signals

    E-Print Network [OSTI]

    Boyer, Edmond

    the material undergoes a phase transition. Herein, we show that thermotropic phase transitions in 4-Cyano-41 Nanoscale Thermotropic Phase Transitions Enhance Photothermal Microscopy Signals A. Nicholas G-objects in various environments. It uses a photo-induced change in the refractive index of the environment. Taking

  15. Using Multilevel Phase Change Memory to Build Data Storage: A

    E-Print Network [OSTI]

    Zhang, Tong

    cache. It is well known that phase-change material resistance drift gradually reduces memory deviceUsing Multilevel Phase Change Memory to Build Data Storage: A Time-Aware System Design Perspective per cell (MLC) phase-change memory (PCM) in data storage systems such as solid-state disk and disk

  16. PHASE TRANSITIONS, CRITICAL PHENOMENA AND EXACTLY SOLVABLE LATTICE MODELS

    E-Print Network [OSTI]

    Pearce, Paul A.

    of common everyday expe- rience. If we boil a kettle of water we observe a change of phase from a liquid in a pond change phase from a liquid state to solid ice. Lastly, if a horseshoe magnet is heated passes through the boling (melting) point. Figure 3 shows the phase diagram of a ferromagnetic material

  17. Coding-based Energy Minimization for Phase Change Memory

    E-Print Network [OSTI]

    -1-4503-1199-1/12/06 ...$10.00. states of the phase-change material. In one state, the ma- terial is amorphous with a highCoding-based Energy Minimization for Phase Change Memory Azalia Mirhoseini Electrical and Computer Phase Change Memory write energy. Our method minimizes the energy required for memory rewrites

  18. Coherent coupling of diode lasers by phase conjugation

    SciTech Connect (OSTI)

    Cronin-Golomb, M.; Yariv, A.; Ury, I.

    1986-05-12T23:59:59.000Z

    We report experimental demonstrations of the use of a photorefractive barium titanate ring passive phase conjugate mirror in the coherent coupling of two GaAlAs diode lasers. By cooling the crystal towards its tetragonal to orthorhombic phase transition, we were also able to achieve infrared photorefractive phase conjugation with gain.

  19. Coherent coupling of diode lasers by phase conjugation

    SciTech Connect (OSTI)

    Cronin-Golomb; Yariv; Ury

    1986-05-12T23:59:59.000Z

    Experimental demonstrations are made of the use of a photorefractive barium titanate ring passive phase conjugate mirror in the coherent coupling of two GaAlAs diode lasers. By cooling the crystal towards its tetragonal to orthorhombic phase transition, one is able to achieve infrared photorefractive phase conjugation with gain.

  20. Scaling of entanglement close to a quantum phase transition

    E-Print Network [OSTI]

    Dorlas, Teunis C.

    to a quantum phase transition A. Osterloh*, Luigi Amico*, G. Falci* & Rosario Fazio * Dipartimento di ............................................................................................................................................................................. Classical phase transitions occur when a physical system reaches a state below a critical temperature characterized by macroscopic order1 . Quantum phase transitions occur at absolute zero; they are induced

  1. TWO-PHASE FLOW TURBINE FOR COGENERATION, GEOTHERMAL,

    E-Print Network [OSTI]

    TWO-PHASE FLOW TURBINE FOR COGENERATION, GEOTHERMAL, SOLAR AND OTHER APPLICATIONS Prepared For REPORT (FAR) TWO-PHASE FLOW TURBINE FOR COGENERATION, GEOTHERMAL, SOLAR AND OTHER APPLICATIONS EISG://www.energy.ca.gov/research/index.html. #12;Page 1 Two-Phase Flow Turbine For Cogeneration, Geothermal, Solar And Other Applications EISG

  2. CLIMATE STUDY Phase II: MU Student Services Providers Survey

    E-Print Network [OSTI]

    Taylor, Jerry

    MU CAMPUS CLIMATE STUDY VOLUME 2 Phase II: MU Student Services Providers Survey Phase III: MU CAMPUS CLIMATE STUDY: PHASES II ­ IV Over the past three years, members of the University of Missouri-Columbia (MU) have participated in the MU Campus Climate Study for Underrepresented Groups conducted by a team

  3. Representing Exceptional Behaviour at the earlier Phases of Software Development

    E-Print Network [OSTI]

    Kent, University of

    Representing Exceptional Behaviour at the earlier Phases of Software Development Rogério de Lemos. Exception handling has been traditionally associated with the design phase of the software lifecycle, during not received enough attention /Avizienes 97/. Ideally, for each identified phase of the software lifecycle

  4. Three phase carbon EOS model with electronic excitation

    SciTech Connect (OSTI)

    van Thiel, M.; Ree, F.H.; Grover, R.

    1987-07-01T23:59:59.000Z

    A simple and rapid way for computing EOS data of multiphase solids with a liquid phase is described with emphasis on carbon. The method uses a scaling model for the liquid phase and includes a provision for electronic effects. The free energy minimum determines the stable phase.

  5. Phase Retrieval for Fresnel Measurements Using a Shearlet Sparsity Constraint

    E-Print Network [OSTI]

    Plonka, Gerlind

    Phase Retrieval for Fresnel Measurements Using a Shearlet Sparsity Constraint Stefan Loock Gerlind Plonka March 25, 2014 Abstract We consider the problem of phase retrieval in the Fresnel regime be used for phase reconstruction with Fresnel data. As it turns out, the shearlet sparsity constraint

  6. Transuranic (TRU) Waste Phase I Retrieval Plan

    SciTech Connect (OSTI)

    MCDONALD, K.M.

    1999-08-27T23:59:59.000Z

    Phase I retrieval of post-1970 TRU wastes from burial ground 218-W-4C can be done in a safe, efficient, and cost-effective manner. Initiating TRU retrieval by retrieving uncovered drums from Trenches 1, 20, and 29, will allow retrieval to begin under the current SWBG safety authorization basis. The retrieval of buried drums from Trenches 1, 4, 20, and 29, which will require excavation, will commence once the uncovered drum are retrieved. This phased approach allows safety analysis for drum venting and drum module excavation to be completed and approved before the excavation proceeds. In addition, the lessons learned and the operational experience gained from the retrieval of uncovered drums can be applied to the more complicated retrieval of the buried drums. Precedents that have been set at SRS and LANL to perform retrieval without a trench cover, in the open air, should be followed. Open-air retrieval will result in significant cost savings over the original plans for Phase I retrieval (Project W-113). Based on LANL and SRS experience, open-air retrieval will have no adverse impacts to the environment or to the health and safety of workers or the public. Assaying the waste in the SWBG using a mobile assay system, will result in additional cost savings. It is expected that up to 50% of the suspect-TRU wastes will assay as LLW, allowing those waste to remain disposed of in the SWBG. Further processing, with its associated costs, will only occur to the portion of the waste that is verified to be TRU. Retrieval should be done, to the extent possible, under the current SWBG safety authorization basis as a normal part of SWBG operations. The use of existing personnel and existing procedures should be optimized. By working retrieval campaigns, typically during the slow months, it is easier to coordinate the availability of necessary operations personnel, and it is easier to coordinate the availability of a mobile assay vendor.

  7. Newberry Volcano EGS Demonstration - Phase I Results

    SciTech Connect (OSTI)

    William L. Osborn, Susan Petty, Trenton T. Cladouhos, Joe Iovenitti, Laura Nofziger, Owen Callahan, Douglas S. Perry and Paul L. Stern

    2011-10-23T23:59:59.000Z

    Phase I of the Newberry Volcano Enhanced Geothermal System (EGS) Demonstration included permitting, community outreach, seismic hazards analysis, initial microseismic array deployment and calibration, final MSA design, site characterization, and stimulation planning. The multi-disciplinary Phase I site characterization supports stimulation planning and regulatory permitting, as well as addressing public concerns including water usage and induced seismicity. A review of the project'Ã?Â?Ã?Â?s water usage plan by an independent hydrology consultant found no expected impacts to local stakeholders, and recommended additional monitoring procedures. The IEA Protocol for Induced Seismicity Associated with Enhanced Geothermal Systems was applied to assess site conditions, properly inform stakeholders, and develop a comprehensive mitigation plan. Analysis of precision LiDAR elevation maps has concluded that there is no evidence of recent faulting near the target well. A borehole televiewer image log of the well bore revealed over three hundred fractures and predicted stress orientations. No natural, background seismicity has been identified in a review of historic data, or in more than seven months of seismic data recorded on an array of seven seismometers operating around the target well. A seismic hazards and induced seismicity risk assessment by an independent consultant concluded that the Demonstration would contribute no additional risk to residents of the nearest town of La Pine, Oregon. In Phase II of the demonstration, an existing deep hot well, NWG 55-29, will be stimulated using hydroshearing techniques to create an EGS reservoir. The Newberry Volcano EGS Demonstration is allowing geothermal industry and academic experts to develop, validate and enhance geoscience and engineering techniques, and other procedures essential to the expansion of EGS throughout the country. Successful development will demonstrate to the American public that EGS can play a significant role in reducing foreign energy dependence, and provide clean, renewable, baseload geothermal power generation in the State of Oregon.

  8. Fully Integrated Frequency and Phase Generation for a 6-18GHz Tunable Multi-Band Phased-Array Receiver in CMOS

    E-Print Network [OSTI]

    Hajimiri, Ali

    control, phase locked loops, phase noise, phased arrays, radio receivers I. INTRODUCTION Very large-scale phased-arrays covering a wide range of frequencies can provide exciting new opportunities for increasedFully Integrated Frequency and Phase Generation for a 6-18GHz Tunable Multi-Band Phased

  9. Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory

    E-Print Network [OSTI]

    Monroe, Jocelyn

    Results are reported from a joint analysis of Phase I and Phase II data from the Sudbury Neutrino Observatory. The effective electron kinetic energy threshold used is Teff=3.5 MeV, the lowest analysis threshold yet achieved ...

  10. Formation of quark phases in protoneutron stars: the transition from the 2SC to the normal quark phase

    E-Print Network [OSTI]

    G. ~Pagliara

    2010-12-14T23:59:59.000Z

    We study the process of formation of quark phases in protoneutron stars. After calculating the phase transition between nucleonic matter and the 2SC phase at fixed entropy and lepton fraction, we show that an unpairing transition between the 2SC phase and the normal quark phase occurs for low lepton fractions. We then calculate the process of diffusion of neutrinos in protoneutron stars and show that for intermediate values of the mass of the star, the deleptonization triggers the phase transition between the two quark phases after a temporal delay of a few seconds. In less massive stars instead only the normal quark phase is formed at the end of the deleptonization stage. We also discuss the possible astrophysical implications of our scenario.

  11. Data:A9c62f2f-49b8-4183-ae83-a63aff00e562 | Open Energy Information

    Open Energy Info (EERE)

    water heating, and small motors not exceeding five (5) horsepower for the largest motor, without prior approval from the Utility. Character of Service Alternating current,...

  12. Data:Ae40b428-293e-4b29-aff4-4a6ba00b8329 | Open Energy Information

    Open Energy Info (EERE)

    Description: To all classes of retail customers for outdoor lighting purposes (Rate Codes 76) and to persons other than governmental subdivisions for the purpose of lighting...

  13. Data:F4f7803e-894f-4aff-8ae2-27f2901e5c3f | Open Energy Information

    Open Energy Info (EERE)

    Description: To all classes of retail customers for outdoor lighting purposes (Rate Codes 76) and to persons other than governmental subdivisions for the purpose of lighting...

  14. Data:A2e9356d-7aff-4368-a4c9-2699e7754362 | Open Energy Information

    Open Energy Info (EERE)

    Cost Adjustment (PCA): A factor determined by SEU and applied to the cost of energy used by the consumer to account for variations in the cost of generating or purchasing...

  15. Data:8f578d5d-303d-4a88-9aff-25fe68c519e7 | Open Energy Information

    Open Energy Info (EERE)

    25fe68c519e7 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2....

  16. Data:D2b48c0a-ff6f-4667-922b-f097069579d6 | Open Energy Information

    Open Energy Info (EERE)

    Parallel Generation (20 kW or less)-Net Energy Billing or Customer- Owned Generation Systems (Greater than 20 kW) For more information see "Source". Source or reference: http:...

  17. Data:B0ae8738-0ae1-4e62-aff9-6d3b6aefdd6c | Open Energy Information

    Open Energy Info (EERE)

    Residential Description: This service is available to all farm, residential, public buildings, and commercial service for continuous year around use, requiring less than 50...

  18. Data:5f7506af-f9c0-45ec-8887-6f6c18d31a1b | Open Energy Information

    Open Energy Info (EERE)

    1 2 3 Next >> Basic Information Utility name: Navopache Electric Coop, Inc (New Mexico) Effective date: 20120801 End date if known: Rate name: 100 Watt HPS 34 kWh Customer...

  19. Data:E5dc240a-b02f-4b5b-8aff-57827669537b | Open Energy Information

    Open Energy Info (EERE)

    subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: High Plains...

  20. Data:Eb0c2d9d-c8c1-4255-a0af-f25506ea5478 | Open Energy Information

    Open Energy Info (EERE)

    average power factor for the period. Energy Charge Options - An account will be billed Energy Charges according to its choice of Option Y - Year-round pricing (the default...

  1. Data:857149ac-c375-4eb4-86af-f8f631cd5adc | Open Energy Information

    Open Energy Info (EERE)

    lines, for outdoor lighting. Source or reference: https:docs.google.comviewer?av&pidsites&srcidcnJ2cmVhLmNvbXxycnZyZWF8Z3g6NWNiMWFkNmUyNzRkODFh Source Parent: http:...

  2. Data:16342b55-fa80-42be-b4f5-351d86affe41 | Open Energy Information

    Open Energy Info (EERE)

    lines, for outdoor lighting. Source or reference: https:docs.google.comviewer?av&pidsites&srcidcnJ2cmVhLmNvbXxycnZyZWF8Z3g6NWNiMWFkNmUyNzRkODFh Source Parent: http:...

  3. Data:Ec151d5c-e7cc-45cd-9a32-aff334f77ed1 | Open Energy Information

    Open Energy Info (EERE)

    Effective date: 20120501 End date if known: Rate name: Rate Schedule R-NM: Residential Net Metering Service Sector: Commercial Description: RESIDENTS WITH RENEWABLE ENERGY...

  4. Data:76195ea2-bdaf-4aff-a29c-bb9b2edea941 | Open Energy Information

    Open Energy Info (EERE)

    250.00 16' Fiberglass (Black) 300.00 16' Fiberglass (Acorn, Black) 800.00 30' Steel & Sub Base 1325.00 30' Fiberglass with 6' Arm 625.00 30' Fiberglass with 2 - 6' Arm...

  5. Data:243fbc2a-b9af-4052-9aa7-03256b5aff6e | Open Energy Information

    Open Energy Info (EERE)

    Inc Effective date: 20110922 End date if known: Rate name: Lighting Service - Metered Steel or Fiberglass pole - 400W M.V or 400 W HPS Sector: Lighting Description: Available to...

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    Open Energy Info (EERE)

    matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Cleco Power LLC Effective...

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    Open Energy Info (EERE)

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

  8. Oak Ridge Health Studies phase 1 report, Volume 1: Oak Ridge Phase 1 overview

    SciTech Connect (OSTI)

    Yarbrough, M.I.; Van Cleave, M.L.; Turri, P.; Daniel, J.

    1993-09-01T23:59:59.000Z

    In July 1991, the State of Tennessee initiated the Health Studies Agreement with the United States Department of Energy to carry out independent studies of possible adverse health effects in people living in the vicinity of the Oak Ridge Reservation. The health studies focus on those effects that could have resulted or could result from exposures to chemicals and radioactivity released at the Reservation since 1942. The major focus of the first phase was to complete a Dose Reconstruction Feasibility Study. This study was designed to find out if enough data exist about chemical and radionuclide releases from the Oak Ridge Reservation to conduct a second phase. The second phase will lead to estimates of the actual amounts or the ``doses`` of various contaminants received by people as a result of off-site releases. Once the doses of various contaminants have been estimated, scientists and physicians will be better able to evaluate whether adverse health effects could have resulted from the releases.

  9. Geometric phase for collinear conical intersections. I. Geometric phase angle and vector potentials

    SciTech Connect (OSTI)

    Li Xuan [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019 (United States); Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada); Brue, Daniel A.; Blandon, Juan D.; Parker, Gregory A. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019 (United States); Kendrick, Brian K. [Theoretical Division (T-1, MS B268), Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2011-02-14T23:59:59.000Z

    We present a method for properly treating collinear conical intersections in triatomic systems. The general vector potential (gauge theory) approach for including the geometric phase effects associated with collinear conical intersections in hyperspherical coordinates is presented. The current study develops an introductory method in the treatment of collinear conical intersections by using the phase angle method. The geometric phase angle, {eta}, in terms of purely internal coordinates is derived using the example of a spin-aligned quartet lithium triatomic system. A numerical fit and thus an analytical form for the associated vector potentials are explicitly derived for this triatomic A{sub 3} system. The application of this methodology to AB{sub 2} and ABC systems is also discussed.

  10. Current generation by phased injection of pellets

    SciTech Connect (OSTI)

    Fisch, N.J.

    1983-08-01T23:59:59.000Z

    By phasing the injection of frozen pellets into a tokamak plasma, it is possible to generate current. The current occurs when the electron flux to individual members of an array of pellets is asymmetric with respect to the magnetic field. The utility of this method for tokamak reactors, however, is unclear; the current, even though free in a pellet-fueled reactor, may not be large enough to be worth the trouble. Uncertainty as to the utility of this method is, in part, due to uncertainty as to proper modeling of the one-pellet problem.

  11. Relativistic Random Phase Approximation At Finite Temperature

    SciTech Connect (OSTI)

    Niu, Y. F. [State Key Laboratory for Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); Physics Department, Faculty of Science, University of Zagreb (Croatia); Paar, N.; Vretenar, D. [Physics Department, Faculty of Science, University of Zagreb (Croatia); Meng, J. [State Key Laboratory for Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China)

    2009-08-26T23:59:59.000Z

    The fully self-consistent finite temperature relativistic random phase approximation (FTRRPA) has been established in the single-nucleon basis of the temperature dependent Dirac-Hartree model (FTDH) based on effective Lagrangian with density dependent meson-nucleon couplings. Illustrative calculations in the FTRRPA framework show the evolution of multipole responses of {sup 132}Sn with temperature. With increased temperature, in both monopole and dipole strength distributions additional transitions appear in the low energy region due to the new opened particle-particle and hole-hole transition channels.

  12. SRP Baseline Hydrogeologic Investigation, Phase 3

    SciTech Connect (OSTI)

    Bledsoe, H.W.

    1988-08-01T23:59:59.000Z

    The SRP Baseline Hydrogeologic Investigation was implemented for the purpose of updating and improving the knowledge and understanding of the hydrogeologic systems underlying the SRP site. Phase III, which is discussed in this report, includes the drilling of 7 deep coreholes (sites P-24 through P-30) and the installation of 53 observation wells ranging in depth from approximately 50 ft to more than 970 ft below the ground surface. In addition to the collection of geologic cores for lithologic and stratigraphic study, samples were also collected for the determination of physical characteristics of the sediments and for the identification of microorganisms.

  13. Quantum string cosmology in the phase space

    E-Print Network [OSTI]

    Ruben Cordero; Erik Diaz; Hugo Garcia-Compean; Francisco J. Turrubiates

    2011-09-22T23:59:59.000Z

    Deformation quantization is applied to quantize gravitational systems coupled with matter. This quantization procedure is performed explicitly for quantum cosmology of these systems in a flat minisuper(phase)space. The procedure is employed in a quantum string minisuperspace corresponding to an axion-dilaton system in an isotropic FRW Universe. The Wheeler-DeWitt-Moyal equation is obtained and its corresponding Wigner function is given analytically in terms of Meijer's functions. Finally, this Wigner functions is used to extract physical information of the system.

  14. Generalized Hawking-Page Phase Transition

    E-Print Network [OSTI]

    Parthasarathi Majumdar

    2007-01-01T23:59:59.000Z

    The issue of radiant spherical black holes being in stable thermal equilibrium with their radiation bath is reconsidered. Using a simple equilibrium statistical mechanical analysis incorporating Gaussian thermal fluctuations in a canonical ensemble of isolated horizons, the heat capacity is shown to diverge at a critical value of the classical mass of the isolated horizon, given (in Planckian units) by the {\\it microcanonical} entropy calculated using Loop Quantum Gravity. The analysis reproduces the Hawking-Page phase transition discerned for anti-de Sitter black holes and generalizes it in the sense that nowhere is any classical metric made use of.

  15. Neurton Damage and MAX Phase Ternary Compounds

    SciTech Connect (OSTI)

    Barsoum, Michael; Hoffman, Elizabeth; Sindelar, Robert; Garcua-Duaz, Brenda; Kohse, Gordon

    2014-06-17T23:59:59.000Z

    The Demands of Gen IV nuclear power plants for long service life under neutron radiation at high temperature are severe. Advanced materials that would withstand high temperatures (up to 1000+ C) to high doses in a neutron field would be ideal for reactor internal structures and would add to the long service life and reliability of the reactors. The objective of this work is to investigate the resonse of a new class of machinable, conductive, layered, ternary transition metal carbides and nitrides - the so-called MAX phases - to low and moderate neutron dose levels.

  16. Synthesis of highly phase pure BSCCO superconductors

    DOE Patents [OSTI]

    Dorris, Stephen E. (La Grange Park, IL); Poeppel, Roger B. (Glen Ellyn, IL); Prorok, Barton C. (Harrisville, PA); Lanagan, Michael T. (Woodridge, IL); Maroni, Victor A. (Naperville, IL)

    1995-01-01T23:59:59.000Z

    An article and method of manufacture of (Bi, Pb)-Sr-Ca-Cu-O superconductor. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor.

  17. Synthesis of highly phase pure BSCCO superconductors

    DOE Patents [OSTI]

    Dorris, S.E.; Poeppel, R.B.; Prorok, B.C.; Lanagan, M.T.; Maroni, V.A.

    1995-11-21T23:59:59.000Z

    An article and method of manufacture (Bi, Pb)-Sr-Ca-Cu-O superconductor are disclosed. The superconductor is manufactured by preparing a first powdered mixture of bismuth oxide, lead oxide, strontium carbonate, calcium carbonate and copper oxide. A second powdered mixture is then prepared of strontium carbonate, calcium carbonate and copper oxide. The mixtures are calcined separately with the two mixtures then combined. The resulting combined mixture is then subjected to a powder in tube deformation and thermal processing to produce a substantially phase pure (Bi, Pb)-Sr-Ca-Cu-O superconductor. 5 figs.

  18. Gravity dual of spatially modulated phase

    SciTech Connect (OSTI)

    Nakamura, Shin [Department of Physics, Kyoto University, Kyoto 606-8502 (Japan); Ooguri, Hirosi [California Institute of Technology, Pasadena, California 91125 (United States); IPMU, University of Tokyo, Kashiwa 277-8586 (Japan); Park, Chang-Soon [California Institute of Technology, Pasadena, California 91125 (United States)

    2010-02-15T23:59:59.000Z

    We show that the five-dimensional Maxwell theory with the Chern-Simons term is tachyonic in the presence of a constant electric field. When coupled to gravity, a sufficiently large Chern-Simons coupling causes instability of the Reissner-Nordstroem black holes in anti-de Sitter space. The instability happens only at nonvanishing momenta, suggesting a spatially modulated phase in the holographically dual quantum field theory in (3+1) dimensions, with spontaneous current generation in a helical configuration. The three-charge extremal black hole in the type IIB superstring theory on AdS{sub 5}xS{sup 5} barely satisfies the stability condition.

  19. Methanol engine conversion feasibility study: Phase 1

    SciTech Connect (OSTI)

    Not Available

    1983-03-01T23:59:59.000Z

    This report documents the selection of the surface-assisted ignition technique to convert two-stroke Diesel-cycle engines to methanol fuel. This study was the first phase of the Florida Department of Transportation methanol bus engine development project. It determined both the feasibility and technical approach for converting Diesel-cycle engines to methanol fuel. State-of-the-art conversion options, associated fuel formulations, and anticipated performance were identified. Economic considerations and technical limitations were examined. The surface-assisted conversion was determined to be feasible and was recommended for hardware development.

  20. NORIA. Nonisothermal Two-Phase Porous Flow

    SciTech Connect (OSTI)

    Bixler, N.E. [Sandia National Labs., Albuquerque, NM (United States)

    1992-02-26T23:59:59.000Z

    NORIA is a finite element program that simultaneously solves four nonlinear parabolic, partial differential equations that describe the transport of water, water vapor, air, and energy through partially saturated porous media. NORIA is designed for the analysis of two-dimensional, non-isothermal, unsaturated porous flow problems. Nearly all material properties, such as permeability, can either be set to constant values or defined as functions of the dependent and independent variables by user-supplied subroutines. The gas phase is taken to be ideal. NORIA is intended to solve nonisothermal problems in which large gradients are expected in the gas pressure.