National Library of Energy BETA

Sample records for hall information age

  1. Carson Hall Information

    E-Print Network [OSTI]

    Ravikumar, B.

    RedwoodDrive ResidentialCommunity Lot B Lot C Lot D Reserved / Special Event Lot J Lot F Lot G Lot A Reserved Parking Lot M Entrance Rohnert Park Expressway Juniper Lane Reserved Parking Parking & Information Center Parking & Information Center General Parking General Parking General Parking General Parking General Parking General

  2. Jefferson Lab Experimental Hall D

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

    Information Hall D General Information Hall D Meetings Calendar (Regina) Hall D Civil - selected drawings (pdf) Hall D Basic Equipment Description on Hall D Wiki JLab Experimental...

  3. Manufacturing Facility/ The Great Hall BREEAM Information Introduction what is BREEAM?

    E-Print Network [OSTI]

    Martin, Ralph R.

    Manufacturing Facility/ The Great Hall BREEAM Information Introduction ­ what is BREEAM? BREEAM Trust. For further information on the BRE Trust please refer to their website www.bre.co.uk BREEAM that the building can be simply identified. BREEAM Rating and score Targeting BREEAM `Excellent' 70.0% BREEAM

  4. Hall County, Nebraska: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainableGlynn County,SolarFERCInformationVirginia: EnergyHall County,

  5. Hall County, Georgia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainableGlynn County,SolarFERCInformationVirginia: EnergyHall County, Georgia:

  6. Hall County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainableGlynn County,SolarFERCInformationVirginia: EnergyHall County,Texas:

  7. Centre Hall, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIR Jump to:RAPIDCavallo EnergyOhio:Elec Coop IncElectric CoopHall,

  8. Embracing Statistical Challenges in the Information Technology Age

    E-Print Network [OSTI]

    Yu, Bin

    Embracing Statistical Challenges in the Information Technology Age Bin YU Department of Statistics.stat.berkeley.edu/users/binyu) This article examines the role of statistics in the age of information technology (IT). It begins by examining into computer technologies. 1. INTRODUCTION "Information technology (IT) is a broad subject concerned

  9. National Center for Geographic Information and Analysis Measuring and Representing Accessibility in the Information Age

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    National Center for Geographic Information and Analysis Measuring and Representing Accessibility in the Information Age A Specialist Meeting of Project Varenius' Geographies of the Information Society 19 ........................................................................................................11 Visualizing and Representing Information Space Within Geographic Information Science (GIS) Michael

  10. Asian Age Enterprise Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to: navigation,SummariesAshman Technologies JumpAge

  11. Rock of Ages | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-bRenewable Energy|Gas and Electricof Ages Jump to:

  12. AGE UFMG Incubator | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton JumpProgram |RecentSulfonateAFV SolutionsEnergyOpenAGE UFMG

  13. Residence Hall Fire Safety

    E-Print Network [OSTI]

    Residence Hall Fire Safety Information Department of Public Safety Residential Life & Housing #12;Part 1 ! Building Information Pursuant to New York City Fire Code and Local Law 10, this Fire Safety, as well as what to do in a fire emergency. Building Construction Residential buildings built before 1968

  14. Building Abbreviations Alumni Hall

    E-Print Network [OSTI]

    Johnson Jr.,, Ray

    20A/B 44 20A/B 44 20A/B 44 58 17 17 88 34 25 Building Abbreviations Alumni Hall Campbell Dome Colden FitzGerald Gym Frese Hall G Building Gertz Center Goldstein Theatre Honors Hall GC GB GT HH MU KY KG KS KP PH I Building Jefferson Hall Kiely Hall King Hall Kissena Hall Klapper Hall Music Building

  15. The Hall

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week Day Year(active tab)Frustrated Magnets:The GrowthTheHall

  16. Bing Concert Hall, under construction

    E-Print Network [OSTI]

    Houses Schwab Residential Center Lyman Graduate Residences Sterling Quad Mirrielees Pearce Mitchell Godzilla Thornton Center Bambi Roble Gym Terman Engineering Center Forsythe Hall Spruce Hall Cypress Hall

  17. Multisensory integration of social information in adult aging 

    E-Print Network [OSTI]

    Hunter, Edyta Monika

    2011-01-01

    Efficient navigation of our social world depends on the generation, interpretation and combination of social signals within different sensory systems. However, the influence of adult aging on cross-modal integration of emotional stimuli remains...

  18. Latin Way Dorm Haskell Hall

    E-Print Network [OSTI]

    Dennett, Daniel

    Carpenter House 176 Curtis Wilson BlakesleeBlakeslee Sawyer Office Services Hallowell Hall Blakely Elliot-Pearson Child Dev. Centr. Elliot-Pearson Child Dev. Centr. Robinson Hall Hamilton Pool Halligan Hall Paige Hall

  19. Fermilab Wilson Hall and Vicinity

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

    Wilson Hall and Vicinity Wilson Hall Ramsey Auditorium Booster Linac Antiproton Source Leon M. Lederman Science Education Center...

  20. Robert B. Laughlin and the Fractional Quantum Hall Effect

    Office of Scientific and Technical Information (OSTI)

    Fractional Quantum Hall Effect Resources with Additional Information Robert B. Laughlin Photo Courtesy of LLNL Robert B. Laughlin shared the 1998 Nobel Prize in Physics with Horst...

  1. Surveillance, Gender, and the Virtual Body in the Information Age

    E-Print Network [OSTI]

    Conrad, Kathryn

    2009-01-01

    suggested, the creation of a separate virtual 'body-as-information' that has affected the very ontology of the body. This 'informatization of the body' has been both spurred and enabled by surveillance techniques that create, depend upon, and manipulate...

  2. 2014 -2015 Residence Hall

    E-Print Network [OSTI]

    Capogna, Luca

    2014 - 2015 Residence Hall Handbook #12;2014-2015 RESIDENCE HALL HANDBOOK The policies Shooter Guidelines 38 2.21 Sustainable Living Tips for Residence Hall Students 39 2.22 Campus Commons 40 3 printing, editing and any revisions, additions or deletions during the course of the year easier to manage

  3. Property:CapRockAge | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceIIInformationEnergyReportNumber Jump to: navigation, searchCapRockAge Jump to:

  4. CENTER HALL RESPONSIBILITY

    E-Print Network [OSTI]

    Noble, James S.

    PAVILION JOHNSTON GILLETT LATHROP SOUTH HALL LAWS CONLEY AVE PARKING GARAGE UNIVERSITY AVE PARKING GARAGE QUARRY CENTER HEARNES MULTIPURPOSE BUILDING LOCUST STREET BUILDING REYNOLDS ALUMNI CENTER LEWIS DALTON

  5. Experimental Hall D | Jefferson Lab

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

    top-right bottom-left-corner bottom-right-corner Experimental Hall D Jefferson Lab's fourth experimental hall, known as Hall D, began receiving beam for calibration and...

  6. Interoperability Building Information Modeling and acoustical analysis software - A demonstration of a performing arts hall design process

    E-Print Network [OSTI]

    Kim, Sunyoung; Coffeen, Robert C.; Sanguinetti, Paola

    2013-06-02

    By sharing and managing the database for a building model, Building Information Modeling (BIM) facilitates the design process at less cost. Some of BIM software has capabilities for acoustical analysis, but it is limited to noise level demonstration...

  7. Old Main Library Shih-Liang Hall

    E-Print Network [OSTI]

    Wu, Yih-Min

    Library Shih-Liang Hall Computer and Information Networking Center Audio-Visual Educational Center College of Engineering Bldg. E.E. Bldg. No. 2 Graduate Institute of National Development Graduate. of Library and Information Science Depot. of Atmospheric Sciences Main Library Dept. of Physics Center

  8. Heldenfels Hall - 2 

    E-Print Network [OSTI]

    Unknown

    2009-01-01

    Measurements of the Hall coefficient and resistivity for highly oriented Tl2Ba2CaCu2O8+delta thin films are reported. The temperature dependence of cotTHETA(H), where THETA(H) is the normal-state Hall angle, for a single-phase (2:2:1:2) film sample...

  9. Portland State University Shattuck Hall

    High Performance Buildings Database

    Portland, OR Portland State's Shattuck hall was originally constructed as an elementary school in 1915. In 2007 the university undertook extensive renovations of the building to bring it up to current seismic requirements. In addition to structural improvements, the design team was able to upgraded the building's aging mechanical and electrical systems, upgrade plumbing, and restore the large light wells that bring daylight into the U-shaped building. The resulting building houses Portland State's Architecture department, where students are able to learn from the exposed building systems.

  10. Stephen F. & Camilla T. Brauer Hall & Preston M. Green Hall

    E-Print Network [OSTI]

    Subramanian, Venkat

    Preston M. Green Hall was completed in August of 2011. Washington University has adopted a holistic1 Stephen F. & Camilla T. Brauer Hall & Preston M. Green Hall: LEED® Building Tour To Our Visitors & Guests: Stephen F. & Camilla T. Brauer Hall was completed in April 2010, while

  11. Proposal for a Science, Technology and Society Course Universal Computation and the Information Age

    E-Print Network [OSTI]

    O'Donnell, Tom

    Proposal for a Science, Technology and Society Course Universal Computation and the Information Age technology, and in turn is revolutionizing production and reorganizing social-economic life globally of the mutual interrelatedness of science, technology and social-economic life 1 The Stanford Encyclopedia

  12. Fragmented or faceted?: a theoretical (re) analysis of the social self in the postmodern information age 

    E-Print Network [OSTI]

    Segura, Clasina Buffelen

    1995-01-01

    As we approach the end of the twentieth century, the state of the social self is being questioned by many in the field of Sociology. Many in the social sciences are arguing that in the current postmodern age, dominated by information technologies...

  13. Hall A Annual Report 2013

    SciTech Connect (OSTI)

    Dalton, Mark M.

    2014-02-01

    Report over the experimental activities in Hall A at Thomas Jefferson National Accelerator Facility during 2013.

  14. Hall A Annual Report 2013

    E-Print Network [OSTI]

    M. M. Dalton; K. Allada; K. Aniol; W. Boeglin; A. Camsonne; E. Chudakov; M. Cummings; D. Flay; M. Friedman; O. Glamazdin; J. Gomez; C. Keppel; H. P. Khanal; R. Lindgren; E. Long; R. Michaels; M. Mihovilovi?; C. Muńoz Camacho; S. Nanda; R. Pomatsalyuk; S. Riordan; S. Širca; C. Smith; P. Solvignon; N. F. Sparveris; V. Vereshchaka; X. Yan; Z. Ye; Y. X. Zhao; Jefferson Lab Hall A Collaboration

    2014-02-27

    Report over the experimental activities in Hall A at Thomas Jefferson National Accelerator Facility during 2013.

  15. AN AUTOMATED DRUSEN DETECTION SYSTEM FOR CLASSIFYING AGE-RELATED MACULAR DEGENERATION WITH COLOR FUNDUS PHOTOGRAPHS

    E-Print Network [OSTI]

    assess the risk for the development of Age-related Mac- ular Degeneration (AMD). Our system incorporates is a hall- mark of AMD, and magnification/multiplication of drusen in- dicates increased risk of eventual are labor-intensive, difficult to reproduce, and may lose important information. Automated drusen detection

  16. Hall Ammendment Policy

    Broader source: Energy.gov [DOE]

    Joint statement providing interim policy on processing proposals for leasing DOE real property using the authority in 42 U.S.C. 7256, commonly referred to as the "Hall Amendment."

  17. SPROUL HALL 1124 RIVERSIDE, CA 92521

    E-Print Network [OSTI]

    SPROUL HALL 1124 RIVERSIDE, CA 92521 education.ucr.edu TEACHER EDUCATION SERVICES (951) 827 School of Education teacher preparation program. For application information please go to the website and view Teacher Education Admission requirements http://education.ucr.edu/tcadmissions.html *Multiple

  18. Optimal Control PRENTICE HALL INFORMATION

    E-Print Network [OSTI]

    Moore, John Barratt

    Optimal Control Optimal Filtering Computer-ControlledSystems: Theory and Design, 21e StatisticalSpectralAnalysis & Systems System Identification and Control Design Using P.I.M. + Software System Identification MedicalImaging Systems Digital Control & Estimation StableAdaptive Systems Adaptive Control

  19. Experimental Hall B | Jefferson Lab

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

    take data in Hall B employ beams of either electrons or photons. From 1995 to 2012, the heart of the Hall B physics program involved the use of the CEBAF Large Acceptance...

  20. A Simple Method for Estimating Informative Node Age Priors for the Fossil Calibration of Molecular Divergence Time Analyses

    E-Print Network [OSTI]

    Nowak, Michael D.; Smith, Andrew B; Simpson, Carl; Zwickl, Derrick J.

    2013-06-05

    an informative parametric prior probability distribution on a node age. Specifically, our method uses the extant diversity and the stratigraphic distribution of fossil lineages confidently assigned to a clade to fit a branching model of lineage diversification...

  1. LSUHSC NO Residence Halls

    E-Print Network [OSTI]

    Hall provided that capacity exists after fulfilling fulltime student demand and that affiliates Cards are issued by the registrar's office, but are encoded for residential use by the Student Housing are shared with a suite mate. Kitchen and laundry facilities are located on each residential floor. All rooms

  2. North Hall 150 700 N. Greenwood Ave.

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    on the local, national and global level. Sponsored by the OSU-Tulsa Library, the Faculty Research Excellence S E R I E S Higher Education's Role in the Information Age The economy of the Information Age

  3. Quantum Spin Hall Eect May 9, 2011

    E-Print Network [OSTI]

    Hall Eect Quantum Spin Hall Eect in Graphene QSHE in quantum well QSHE in strained semiconductor Tim Quantum Spin Hall Eect in Graphene QSHE in quantum well QSHE in strained semiconductor Tim Hsieh Quantum Hsieh Quantum Spin Hall Eect #12;Integer Quantum Hall Eect (IQHE) 2D electron gas at low temperature

  4. Cylindrical geometry hall thruster

    DOE Patents [OSTI]

    Raitses, Yevgeny (Princeton, NJ); Fisch, Nathaniel J. (Princeton, NJ)

    2002-01-01

    An apparatus and method for thrusting plasma, utilizing a Hall thruster with a cylindrical geometry, wherein ions are accelerated in substantially the axial direction. The apparatus is suitable for operation at low power. It employs small size thruster components, including a ceramic channel, with the center pole piece of the conventional annular design thruster eliminated or greatly reduced. Efficient operation is accomplished through magnetic fields with a substantial radial component. The propellant gas is ionized at an optimal location in the thruster. A further improvement is accomplished by segmented electrodes, which produce localized voltage drops within the thruster at optimally prescribed locations. The apparatus differs from a conventional Hall thruster, which has an annular geometry, not well suited to scaling to small size, because the small size for an annular design has a great deal of surface area relative to the volume.

  5. Town Hall with Secretary Moniz

    Broader source: Energy.gov [DOE]

    In a town hall meeting with Department staff, Energy Secretary Ernest Moniz spoke about his plans for a reorganization of the Energy Department’s management structure.

  6. Bing Concert Hall, Under Construction

    E-Print Network [OSTI]

    Prinz, Friedrich B.

    Freidenrich Center, Under Construction Terman Engineering Center, Demolition Frost Amphitheater Ford Plaza Hall Cowell Houses Schwab Residential Center Lyman Graduate Residences Sterling Quad Mirrielees Pearce

  7. Name Address Alumnae Hall 91 Alumnae Dr. EG

    E-Print Network [OSTI]

    Arnold, Elizabeth A.

    Name Address Alumnae Hall 91 Alumnae Dr. EG Anthony-Seeger Hall 821 S. Main EG Ashby Hall 50 Bluestone Dr. AUX Burruss Hall 820 Madison Dr. EG Cleveland Hall 61 E. Grace EG Converse Hall 30 Bluestone Dr. AUX Duke Hall 820 S. Main EG Mr. Chips Convenience Store 190 Bluestone Dr. AUX Frederikson Hall

  8. Mary Hall Salishan

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport)PriceHistoricEnergyAprilMartin D. Kamen,Mary AnnHall

  9. QER- Comment of Addison Hall

    Office of Energy Efficiency and Renewable Energy (EERE)

    I and my family own land in Ashfield next to the proposed Kinder Morgan/Tennessee Pipeline route. We are opposed to the pipeline for a variety of reasons, including the highly questionable need for the proposed commodity increase and the inevitable damage to the environment and communities along the proposed route. Addison Hall for the Hall Family Trust.

  10. Channels and sources used to gather equine-related information by college-age horse owners and enthusiasts 

    E-Print Network [OSTI]

    Sullivan, Erin Alene

    2009-05-15

    This thesis identifies the equine-related topics that are important to Texas college-age horse owners and enthusiasts and the channels/sources they use to get equine-related information. Little research has focused on this group to determine...

  11. Residence Hall Addresses Residence Hall Physical Street Address Zip Plus Four

    E-Print Network [OSTI]

    - East 700 Washington St SW 24061-9521 Ambler Johnston Hall - West 720 Washington St SW 24061 Drillfield Dr 24061-9535 Campbell Hall - Main 300 Drillfield Dr 24061-9503 Cochrane Hall 770 Washington St SW 385 West Campus Dr 24061-9505 Johnson Hall 500 Washington St SW 24061-9506 Lee Hall 570 Washington St

  12. Hall Effect Gyrators and Circulators

    E-Print Network [OSTI]

    Giovanni Viola; David P. DiVincenzo

    2014-03-04

    The electronic circulator, and its close relative the gyrator, are invaluable tools for noise management and signal routing in the current generation of low-temperature microwave systems for the implementation of new quantum technologies. The current implementation of these devices using the Faraday effect is satisfactory, but requires a bulky structure whose physical dimension is close to the microwave wavelength employed. The Hall effect is an alternative non-reciprocal effect that can also be used to produce desired device functionality. We review earlier efforts to use an ohmically-contacted four-terminal Hall bar, explaining why this approach leads to unacceptably high device loss. We find that capacitive coupling to such a Hall conductor has much greater promise for achieving good circulator and gyrator functionality. We formulate a classical Ohm-Hall analysis for calculating the properties of such a device, and show how this classical theory simplifies remarkably in the limiting case of the Hall angle approaching 90 degrees. In this limit we find that either a four-terminal or a three-terminal capacitive device can give excellent circulator behavior, with device dimensions far smaller than the a.c. wavelength. An experiment is proposed to achieve GHz-band gyration in millimetre (and smaller) scale structures employing either semiconductor heterostructure or graphene Hall conductors. An inductively coupled scheme for realising a Hall gyrator is also analysed.

  13. Experimental Hall C | Jefferson Lab

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

    in Hall C is used to study the weak charge of the proton, form factors of simple quark systems, the transition from hadrons to quarks and nuclei with a strange quark embedded....

  14. Sec. Chu Online Town Hall

    Office of Energy Efficiency and Renewable Energy (EERE)

    Secretary Steven Chu hosted an online town hall to discuss the clean energy and innovation agenda President Obama laid out in his 2011 State of the Union address. (January 26, 2011)

  15. Optimization of Cylindrical Hall Thrusters

    SciTech Connect (OSTI)

    Yevgeny Raitses, Artem Smirnov, Erik Granstedt, and Nathaniel J. Fi

    2007-07-24

    The cylindrical Hall thruster features high ionization efficiency, quiet operation, and ion acceleration in a large volume-to-surface ratio channel with performance comparable with the state-of-the-art annular Hall thrusters. These characteristics were demonstrated in low and medium power ranges. Optimization of miniaturized cylindrical thrusters led to performance improvements in the 50-200W input power range, including plume narrowing, increased thruster efficiency, reliable discharge initiation, and stable operation. __________________________________________________

  16. Optimization of Cylindrical Hall Thrusters

    SciTech Connect (OSTI)

    Yevgeny Raitses, Artem Smirnov, Erik Granstedt, and Nathaniel J. Fisch

    2007-11-27

    The cylindrical Hall thruster features high ionization efficiency, quiet operation, and ion acceleration in a large volume-to-surface ratio channel with performance comparable with the state-of-the-art annular Hall thrusters. These characteristics were demonstrated in low and medium power ranges. Optimization of miniaturized cylindrical thrusters led to performance improvements in the 50-200W input power range, including plume narrowing, increased thruster efficiency, reliable discharge initiation, and stable operation.

  17. Towards a post-industrial architecture : design and construction of houses for the information age

    E-Print Network [OSTI]

    Demchak, Gregory L. (Gregory Leonard), 1974-

    2000-01-01

    The design and construction of modern residential architecture, which came into critical focus by architects of the Machine Age, continues to be a priority in the architectural discourse. For Modern architects, the desire ...

  18. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New Information U.S. Patent 7,323,683 (issued January 28, 2008) Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  19. An Investigation of Episodic Memory for Item and Associative Information in Aging 

    E-Print Network [OSTI]

    Thiede, Emily

    2013-07-02

    This study aimed to explore to what extent the memory difficulties in older adults are a result of problems with memory control and the role played by associative memory in age-related changes. This project explored participants’ ability to encode...

  20. City Hall plazas : they're different

    E-Print Network [OSTI]

    Hall, Kristen E. (Kristen Elizabeth)

    2008-01-01

    This essay explores the form, goals, and ideals behind city hall plazas by asking the questions: What is the difference between a city hall plaza and any other urban plaza? What are the uses intended by the city in the ...

  1. COVER SHEET Hall, Carly and Heffernan, Maree (2006) Where is it and why is it there? : GIS and its

    E-Print Network [OSTI]

    Roe, Paul

    2006-01-01

    COVER SHEET Hall, Carly and Heffernan, Maree (2006) Where is it and why is it there? : GIS and its IS IT THERE? : GIS AND ITS POTENTIAL USE IN THE HUMAN SERVICES SECTOR Carly HallA and Maree Heffernan Information Systems (GIS) in a Human Services environment. Policy shifts are increasingly requiring human

  2. Name, E-mail address (@umn.edu), Location, and Phone Number: 218-281-AgRC-Agricultural Research Ctr, ARSF-Agricultural Research Support Facility, CH-Centennial Hall, DH-Dowell Hall, DA-Dowell Hall Annex, ECB-Early Childhood Building, HillH-Hill Hall,

    E-Print Network [OSTI]

    Minnesota, University of

    Ctr, ARSF-Agricultural Research Support Facility, CH-Centennial Hall, DH-Dowell Hall, DA-Dowell Hall

  3. Landauer in the age of synthetic biology: energy consumption and information processing in biochemical networks

    E-Print Network [OSTI]

    Mehta, Pankaj; Schwab, David J

    2015-01-01

    A central goal of synthetic biology is to design sophisticated synthetic cellular circuits that can perform complex computations and information processing tasks in response to specific inputs. The tremendous advances in our ability to understand and manipulate cellular information processing networks raises several fundamental physics questions: How do the molecular components of cellular circuits exploit energy consumption to improve information processing? Can one utilize ideas from thermodynamics to improve the design of synthetic cellular circuits and modules? Here, we summarize recent theoretical work addressing these questions. Energy consumption in cellular circuits serves five basic purposes: (1) increasing specificity, (2) manipulating dynamics, (3) reducing variability, (4) amplifying signal, and (5) erasing memory. We demonstrate these ideas using several simple examples and discuss the implications of these theoretical ideas for the emerging field of synthetic biology. We conclude by discussing h...

  4. ANNUAL FIRE SAFETY RESIDENCE HALLS

    E-Print Network [OSTI]

    Fernandez, Eduardo

    1 2013 ANNUAL FIRE SAFETY REPORT FOR RESIDENCE HALLS As Required by the Higher Education Opportunity Act (HEOA) #12;2 INTRODUCTION Contents of this annual fire safety report reflect the requirements outlined in the HEOA, which are included in Florida Atlantic University's (FAU) campus fire safety program

  5. Bonner Hall Building Evacuation Procedures

    E-Print Network [OSTI]

    Krovi, Venkat

    Bonner Hall Building Evacuation Procedures General Procedures: It is the personal responsibility of all occupants of University buildings to immediately exit the building when the fire alarm is activated. Remaining in the building is unacceptable, regardless of the reason. Occupants should exit from

  6. KETTER HALL BUILDING EVACUATION PROCEDURES

    E-Print Network [OSTI]

    Krovi, Venkat

    KETTER HALL BUILDING EVACUATION PROCEDURES General Procedures: It is the personal responsibility of all University buildings occupants to immediately exit the building when the fire alarm is activated. Remaining in the building is unacceptable, regardless of the reason. Occupants should exit from the closest

  7. Jarvis Hall Building Evacuation Procedures

    E-Print Network [OSTI]

    Krovi, Venkat

    Jarvis Hall Building Evacuation Procedures General Procedures: It is the personal responsibility of all occupants of University buildings to immediately exit the building when the fire alarm is activated. Remaining in the building is unacceptable, regardless of the reason. Occupants should exit from

  8. Furnas Hall Building Evacuation Procedures

    E-Print Network [OSTI]

    Krovi, Venkat

    Furnas Hall Building Evacuation Procedures General Procedures: It is the personal responsibility of all occupants of University buildings to immediately exit the building when the fire alarm is activated. Remaining in the building is unacceptable, regardless of the reason. Occupants should exit from

  9. Anthony Kathryn Hall | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex A S Jump to:Angola on theAnselmo,

  10. Building Green in Greensburg: City Hall Building

    Office of Energy Efficiency and Renewable Energy (EERE)

    This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing City Hall building in Greensburg, Kansas.

  11. Henderson Hall's Education and Career Fair

    Broader source: Energy.gov [DOE]

    Location: Smith Gym, Henderson Hall, Arlington, VAPOC: Donna FriendWebsite: http://www.mccshh.com/EducationCareerFairFall2014.html

  12. Rebuilding It Better: Greensburg, Kansas, City Hall

    SciTech Connect (OSTI)

    D. Egan

    2010-04-13

    This document showcases the LEED-Platinum designed Greensburg City Hall, which was rebuilt green, after a massive tornado destroyed Greensburg, Kansas in May 2007.

  13. September 10, 2010 Web Town Hall about UC Benefits

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    September 10, 2010 Web Town Hall about UC Benefits UC leaders will host an online town hall meeting up for an account here: http://www.ustream.tv/login-signup. The Web Town Hall, a first in UC history

  14. May 20, 2014 Klarman Hall Construction Project Update

    E-Print Network [OSTI]

    Davis, H. Floyd

    May 20, 2014 Klarman Hall Construction Project Update The Klarman Hall will sound. At this signal, construction personnel will clear pedestrians from

  15. Building America Top Innovations Hall of Fame Profile - Building...

    Energy Savers [EERE]

    Top Innovations Hall of Fame Profile - Building Energy Optimization Analysis Method (BEopt) Building America Top Innovations Hall of Fame Profile - Building Energy Optimization...

  16. Microscopic theory of quantum anomalous Hall effect in graphene...

    Office of Scientific and Technical Information (OSTI)

    Microscopic theory of quantum anomalous Hall effect in graphene Prev Next Title: Microscopic theory of quantum anomalous Hall effect in graphene Authors: Qiao, Zhenhua ;...

  17. Engineering quantum anomalous/valley Hall states in graphene...

    Office of Scientific and Technical Information (OSTI)

    Engineering quantum anomalousvalley Hall states in graphene via metal-atom adsorption: Anab-initiostudy Prev Next Title: Engineering quantum anomalousvalley Hall states in...

  18. Building America Top Innovations Hall of Fame Profile - Building...

    Energy Savers [EERE]

    Top Innovations Hall of Fame Profile - Building America's Top Innovations Propel the Home Building Industry toward Higher Performance Building America Top Innovations Hall of Fame...

  19. 0960-3174 #1997 Chapman & Hall On the shrinkage of local linear curve

    E-Print Network [OSTI]

    Cheng, Ming-Yen

    , Glasgow G12 8QW, UK Received December 1995 and accepted October 1996 Local linear curve estimators0960-3174 #1997 Chapman & Hall On the shrinkage of local linear curve estimators MING-YEN CHENG1, however. A common remedy is `ridging', which may be viewed as shrink- age of the local linear estimator

  20. Town Hall with Secretary Moniz

    SciTech Connect (OSTI)

    Energy Secretary Ernest Moniz; Deputy Secretary of Energy Daniel Poneman

    2013-07-18

    In a town hall meeting with Department staff, Energy Secretary Ernest Moniz spoke about his plans for a reorganization of the Energy Department’s management structure. The plans will help better achieve the Department’s key priorities and those of the President, including implementing the President’s Climate Action Plan, “all of the above” energy strategy and nuclear security agenda. After his remarks, Moniz, joined by Deputy Secretary Dan Poneman, took questions from the audience in the Forrestal Auditorium as well as email questions from other Department locations.

  1. Town Hall with Secretary Moniz

    ScienceCinema (OSTI)

    Energy Secretary Ernest Moniz; Deputy Secretary of Energy Daniel Poneman

    2013-07-25

    In a town hall meeting with Department staff, Energy Secretary Ernest Moniz spoke about his plans for a reorganization of the Energy Department?s management structure. The plans will help better achieve the Department?s key priorities and those of the President, including implementing the President?s Climate Action Plan, ?all of the above? energy strategy and nuclear security agenda. After his remarks, Moniz, joined by Deputy Secretary Dan Poneman, took questions from the audience in the Forrestal Auditorium as well as email questions from other Department locations.

  2. K-7109Agnew Hall M-2204Air Conditioning Plant

    E-Print Network [OSTI]

    K-7109Agnew Hall M-2204Air Conditioning Plant M-833Ambler Johnston Hall - East Wing M-832Ambler is an equal opportunity, affirmative action institution. K-7109 Agnew Hall 460 West Campus Dr M-2204 Air Conditioning Plant 344 Stanger St M-833 Ambler Johnston Hall - East Wing 700 Washington St SW M-832 Ambler

  3. UNIVERSITY VIEW GLENN L. MARTIN HALL

    E-Print Network [OSTI]

    Daume III, Hal

    other parking lots are for use by PERMIT HOL HALL BENJAMIN BUILDING SCHOOL OF PUBLIC HEALTH ARCHITECTURE A.V. WILLIAMS TERRAPIN SOFTBALL COMPLEXVisitors: · Parking is primarily designated within cashier-attended facilities. Lots are marked with on map

  4. Comments on Hall transport from effective actions

    E-Print Network [OSTI]

    Felix M. Haehl; Mukund Rangamani

    2015-01-18

    We consider parity-odd transport in 2+1 dimensional charged fluids restricting attention to the class of non-dissipative fluids. We show that there is a two parameter family of such non-dissipative fluids which can be derived from an effective action, in contradistinction with a four parameter family that can be derived from an entropy current analysis. The effective action approach allows us to extract the adiabatic transport data, in particular the Hall viscosity and Hall conductivity amongst others, in terms of the thermodynamic functions that enter as 'coupling constants'. Curiously, we find that Hall viscosity is forced to vanish, whilst the Hall conductivity is generically a non-vanishing function of thermodynamic data determined in terms of the hydrodynamic couplings.

  5. A new town hall for Norwich, Vermont

    E-Print Network [OSTI]

    Harboe, Peter Thomas McIlvaine

    1988-01-01

    ... the public building is not an abstract symbol, but partakes in daily life, which relates to what is timeless and common. The objective of this thesis was to design a new town hall for Norwich, Vermont. The design ...

  6. Unconventional Sequence of Fractional Quantum Hall

    E-Print Network [OSTI]

    Yacoby, Amir

    Unconventional Sequence of Fractional Quantum Hall States in Suspended Graphene Benjamin E. Feldman- netic field B to a two-dimensional elec- tron gas (2DEG) gives rise to flat energy bands called Landau

  7. Town Hall Meeting #3: Green Button | OpenEI Community

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeterInformation PolicyTinna GroupToppan Printing CoTowPathTown Hall

  8. MSU TESTING SERVICES 243 Reid Hall / Phone: (406) 994-6984

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    MSU TESTING SERVICES 243 Reid Hall / Phone: (406) 994-6984 Email: exams@montana.edu Student Name: Instructor: ALLOWED DURING TESTING Scratch Paper Computer Additional Information: Exam will be delivered to Testing Services: Exam returned to instructor: Instructor or authorized person will pick up Student

  9. Allen Hall....................................ALLEN D2 Alumni Hall..................................ALUM E2

    E-Print Network [OSTI]

    Kalisz, Susan

    F1 · Old Engineering Hall ....................OEH D2 Oxford Bldg.(3501 Forbes Ave.) OXFRD C4.............................BELLH G2 Bellefield Presbyterian Church...PRES D3 Bellefield Towers.........................BELLT F1 ....................CHILD C3 Clapp Hall..................................CLAPP F1 Community of Reconciliation Bldg. ..CR F1

  10. Unconventional Quantum Hall Effect and Tunable Spin Hall Effect...

    Office of Scientific and Technical Information (OSTI)

    Date: 2013-02-01 OSTI Identifier: 1102031 Type: Publisher's Accepted Manuscript Journal Name: Physical Review Letters Additional Journal Information: Journal Volume: 110;...

  11. Rapa Nui on the Verge: Easter Island’s Struggles with Integration and Globalization in the Information Age

    E-Print Network [OSTI]

    Delaune, Gregory

    2012-01-01

    the Verge Rap Nui’s history. Internet access on the islandinternet now provides increased access to extensive and reliable information about the complex history

  12. New York Hall of Science Connections: The Nature of Networks

    E-Print Network [OSTI]

    Short, Daniel

    New York Hall of Science Connections: The Nature of Networks (NSF Award No. 0229268) suzzo of Technology New York Hall of Science Flushing Meadows Corona Park, New York suzzo@nyscience.org +1

  13. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New #12;The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New

  14. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New York, NY 10065 www

  15. Semi-analytical model of ionization oscillations in Hall thrusters

    E-Print Network [OSTI]

    Mockelman, Jeffrey A. (Jeffrey Alan)

    2015-01-01

    This thesis presents efforts to better understand the breathing-mode oscillation within Hall thrusters. These oscillations have been present and accepted within Hall thrusters for decades, but recent interest in the ...

  16. SYLLABUS: Environmental Education in the School Curriculum Wednesdays 2:15-5:00p, Waller Hall Room 203

    E-Print Network [OSTI]

    Chen, Kuang-Yu

    ways to incorporate environmental education into formal and informal learning environments *Discuss how:15-5:00p, Waller Hall Room 203 CONTACT INFORMATION: COURSE MATERIALS: Instructor: Rebecca Jordan Handouts on mastery, not on a curve. Please note that plagiarism will not be tolerated--always provide your sources

  17. Geometric adiabatic transport in quantum Hall states

    E-Print Network [OSTI]

    Semyon Klevtsov; Paul Wiegmann

    2015-08-22

    We argue that in addition to the Hall conductance and the nondissipative component of the viscous tensor, there exists a third independent transport coefficient, which is precisely quantized. It takes constant values along quantum Hall plateaus. We show that the new coefficient is the Chern number of a vector bundle over moduli space of surfaces of genus 2 or higher and therefore cannot change continuously along the plateau. As such, it does not transpire on a sphere or a torus. In the linear response theory, this coefficient determines intensive forces exerted on electronic fluid by adiabatic deformations of geometry and represents the effect of the gravitational anomaly. We also present the method of computing the transport coefficients for quantum Hall states.

  18. Spring 2015 Henderson Hall Education and Career Fair

    Office of Energy Efficiency and Renewable Energy (EERE)

    Location: Smith Gym, Henderson Hall, Arlington, VAPOC: DOECorporateRecruitment@hq.doe.govWebsite: http://bit.ly/1FRIJOF

  19. Martin--Luther--Universit at Halle--Wittenberg

    E-Print Network [OSTI]

    ­Liebenow, N. H. Cong, R. Weiner and K. Strehmel Report No. 41 (1997) Reports of the Institute of Numerical­dimensional parabolic differential equations C. Eichler­Liebenow, N. H. Cong, R. Weiner and K. Strehmel Report No. 41@mail.mathematik.uni­halle.de rw@mathematik.uni­halle.de strehmel@mathematik.uni­halle.de Prof. Dr. N. H. Cong Faculty

  20. Checklists for: Oklahoma 4-H Hall of Fame

    E-Print Network [OSTI]

    Balasundaram, Balabhaskar "Baski"

    Checklists for: Oklahoma 4-H Hall of Fame National 4-H Youth Congress Name County Oklahoma 4-H Hall of Fame National 4-H Youth Congress Oklahoma 4-H Hall of Fame has the following requirements: Oklahoma 4-H on the front page of the Oklahoma 4-H Report Form and on the heading for Section I Member must be 16 years

  1. Unconventional Integer Quantum Hall effect in graphene

    E-Print Network [OSTI]

    V. P. Gusynin; S. G. Sharapov

    2005-08-16

    Monolayer graphite films, or graphene, have quasiparticle excitations that can be described by 2+1 dimensional Dirac theory. We demonstrate that this produces an unconventional form of the quantized Hall conductivity $\\sigma_{xy} = - (2 e^2/h)(2n+1)$ with $n=0,1,...$, that notably distinguishes graphene from other materials where the integer quantum Hall effect was observed. This unconventional quantization is caused by the quantum anomaly of the $n=0$ Landau level and was discovered in recent experiments on ultrathin graphite films.

  2. Integer Quantum Hall Effect in Graphene

    E-Print Network [OSTI]

    Jellal, Ahmed

    2015-01-01

    We study the quantum Hall effect in a monolayer graphene by using an approach based on thermodynamical properties. This can be done by considering a system of Dirac particles in an electromagnetic field and taking into account of the edges effect as a pseudo-potential varying continuously along the $x$ direction. At low temperature and in the weak electric field limit, we explicitly determine the thermodynamical potential. With this, we derive the particle numbers in terms of the quantized flux and therefore the Hall conductivity immediately follows.

  3. Integer Quantum Hall Effect in Graphene

    E-Print Network [OSTI]

    Ahmed Jellal

    2015-04-24

    We study the quantum Hall effect in a monolayer graphene by using an approach based on thermodynamical properties. This can be done by considering a system of Dirac particles in an electromagnetic field and taking into account of the edges effect as a pseudo-potential varying continuously along the $x$ direction. At low temperature and in the weak electric field limit, we explicitly determine the thermodynamical potential. With this, we derive the particle numbers in terms of the quantized flux and therefore the Hall conductivity immediately follows.

  4. Quantum Hall systems Representation theory of vertex operator algebras Applications The end Quantum Hall states and the representation

    E-Print Network [OSTI]

    Huang, Yi-Zhi

    Quantum Hall systems Representation theory of vertex operator algebras Applications The end Quantum Science, CAS #12;Quantum Hall systems Representation theory of vertex operator algebras Applications to a fundamental conjecture #12;Quantum Hall systems Representation theory of vertex operator algebras Applications

  5. Quantum Hall systems Representation theory of vertex operator algebras Applications The end Quantum Hall states and the representation

    E-Print Network [OSTI]

    Huang, Yi-Zhi

    Quantum Hall systems Representation theory of vertex operator algebras Applications The end Quantum;Quantum Hall systems Representation theory of vertex operator algebras Applications The end Outline 1 An approach to a fundamental conjecture #12;Quantum Hall systems Representation theory of vertex operator

  6. Parallel Hall effect from 3D single-component metamaterials

    E-Print Network [OSTI]

    Kern, Christian; Wegener, Martin

    2015-01-01

    We propose a class of three-dimensional metamaterial architectures composed of a single doped semiconductor (e.g., n-Si) in air or vacuum that lead to unusual effective behavior of the classical Hall effect. Using an anisotropic structure, we numerically demonstrate a Hall voltage that is parallel---rather than orthogonal---to the external static magnetic-field vector ("parallel Hall effect"). The sign of this parallel Hall voltage can be determined by a structure parameter. Together with the previously demonstrated positive or negative orthogonal Hall voltage, we demonstrate four different sign combinations

  7. Alan Turing, Marshall Hall, and the Alignment

    E-Print Network [OSTI]

    Wright, Francis

    Alan Turing, Marshall Hall, and the Alignment of WW2 Japanese Naval Intercepts Peter W. Donovan M work in all areas, from the Japanese codes to the German Enigma machine which Alan Turing had begun of communications intelligence to the WW2 Allies in the Pacific. Alan Turing's Work on Applied Probability

  8. Geometrical Music Theory Rachel Wells Hall1

    E-Print Network [OSTI]

    Hall, Rachel W.

    Geometrical Music Theory Rachel Wells Hall1 Music theorists have frequently invoked geometry in modeling musical objects such as chords, rhythms, and scales; however, no unified geometric perspective has musical terms can be understood as expressing symmetries of n-dimensional space. Identifying-- "gluing

  9. The Quantum Hall Effect in Graphene

    E-Print Network [OSTI]

    Paolo Cea

    2012-04-24

    We investigate the quantum Hall effect in graphene. We argue that in graphene in presence of an external magnetic field there is dynamical generation of mass by a rearrangement of the Dirac sea. We show that the mechanism breaks the lattice valley degeneracy only for the $n=0$ Landau levels and leads to the new observed $\

  10. Light Board Operation 208 Jordan Hall

    E-Print Network [OSTI]

    Buechler, Steven

    Light Board Operation 208 Jordan Hall Using the Light Board 1. Turn on the lights next to the entry door. 2. Turn on the Light Board lights (illustration 1). The light switch is on the west wall, slightly behind the computer cart's display. 3. Locate the lapel microphone (usually on top of the Light

  11. U.S. WRESTLING FEDERATION HALL

    E-Print Network [OSTI]

    S-86 S-87 S-36 S-85 S-90 S-75 S-76 HOUSE #6 S-89 S-91 OFFICE CENTER AGRICULTURE U.S.D.A. S-92 S-88 CORDELL ATHLETIC CENTER BOONE PICKENS STADIUM ANIMAL SCIENCES AGRICULTURAL SCIENCES MATH N. SMITH HALL ALUMNI CENTER HOUSING - JPI PHASE 1 BUILDING 3 HOUSING - JPI PHASE 1 BUILDING 4 STUDENT UNION

  12. Fractional quantum Hall effect and nonabelian statistics

    E-Print Network [OSTI]

    N. Read; G. Moore

    1992-02-03

    It is argued that fractional quantum Hall effect wavefunctions can be interpreted as conformal blocks of two-dimensional conformal field theory. Fractional statistics can be extended to nonabelian statistics and examples can be constructed from conformal field theory. The Pfaffian state is related to the 2D Ising model and possesses fractionally charged excitations which are predicted to obey nonabelian statistics.

  13. Banner Job Installation Security Form Office of Information Technology

    E-Print Network [OSTI]

    Karsai, Istvan

    Banner Job Installation Security Form Office of Information Technology 424 Roy S. Nicks Hall, Box: ______________________________ Job Description: ______________________________ Section 3. Security Information Banner Module 70728 Johnson City, Tennessee 37614 (423) 439-4648 · oithelp@etsu.edu Section 1. Requestor Information

  14. Software to support Forestry Commission Information Note 45 `Monitoring the Transformation of Even-aged Stands to

    E-Print Network [OSTI]

    1.6.3 The Diary Entry Window 35 1.6.4 The Fixed Point Tab Sheet 36 1.6.5 The Fixed Point Window 37 1 and Viewing Diary Entries 53 3.1.3 Deleting Diary Entries 53 3.2 Working with Fixed Points and Fixed Point to Ancillary Monitoring Information 33 1.6.1 The Stand Position Tab Sheet 33 1.6.2 The Diary Entry Tab Sheet 34

  15. Fast Camera Imaging of Hall Thruster Ignition

    SciTech Connect (OSTI)

    C.L. Ellison, Y. Raitses and N.J. Fisch

    2011-02-24

    Hall thrusters provide efficient space propulsion by electrostatic acceleration of ions. Rotating electron clouds in the thruster overcome the space charge limitations of other methods. Images of the thruster startup, taken with a fast camera, reveal a bright ionization period which settles into steady state operation over 50 ?s. The cathode introduces azimuthal asymmetry, which persists for about 30 ?s into the ignition. Plasma thrusters are used on satellites for repositioning, orbit correction and drag compensation. The advantage of plasma thrusters over conventional chemical thrusters is that the exhaust energies are not limited by chemical energy to about an electron volt. For xenon Hall thrusters, the ion exhaust velocity can be 15-20 km/s, compared to 5 km/s for a typical chemical thruster

  16. Fractional Quantum Hall States in Graphene

    E-Print Network [OSTI]

    Ahmed Jellal; Bellati Malika

    2011-04-27

    We quantum mechanically analyze the fractional quantum Hall effect in graphene. This will be done by building the corresponding states in terms of a potential governing the interactions and discussing other issues. More precisely, we consider a system of particles in the presence of an external magnetic field and take into account of a specific interaction that captures the basic features of the Laughlin series \

  17. Directions to Wilson Hall, Fermilab

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HAB PacketDiesel prices continueDileepDirections &Directions Both

  18. Multi-Probe Diagnostic Hall

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof Energy Moving Forward to Address Nuclear3-000

  19. Math 100A Fall 2009: Abstract Algebra I MWF 10-10:50am, Warren Lecture Hall 2111

    E-Print Network [OSTI]

    Rogalski, Daniel

    Math 100A Fall 2009: Abstract Algebra I MWF 10-10:50am, Warren Lecture Hall 2111 Professor D. Rogalski 1. Contact Information Prof. Rogalski's Office: 5131 AP&M E-mail: drogalsk@math.ucsd.edu Class web site: www.math.ucsd.edu/ drogalsk/100a.html. Check here for announcements, homework assignments

  20. CRIMINAL OFFENSES ON CAMPUS RESIDENTIAL HALL NONCAMPUS PUBLIC

    E-Print Network [OSTI]

    Elzanowski, Marek

    CRIMINAL OFFENSES ON CAMPUS ON CAMPUS RESIDENTIAL HALL NONCAMPUS PUBLIC Murder & Non, Sexual Orientation, Gender, Gender Identity, Disability, Ethnicity, National Origin) Murder & Non

  1. Building America Top Innovations Hall of Fame Profile - Building...

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

    Building America Top Innovations Hall of Fame Profile - Building America's Top Innovations Propel the Home Building Industry toward Higher Performance Building America Top...

  2. Building America Top Innovations Hall of Fame Profile ? Integration...

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

    are essential to realizing the promise of high-performance homes. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and...

  3. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  4. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  5. Rebuilding It Better: Greensburg, Kansas, City Hall (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01

    This brochure details the energy efficient and sustainable aspects of the LEED Platinum-designated City Hall building in Greensburg, Kansas.

  6. Rebuilding It Better: Greensburg, Kansas. City Hall (Brochure)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This brochure details the energy efficient and sustainable aspects of the LEED Platinum-designated City Hall building in Greensburg, Kansas.

  7. Rebuilding It Better: Greensburg, Kansas. City Hall (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-04-01

    This document showcases the LEED-Platinum designed Greensburg City Hall, which was rebuilt green, after a massive tornado destroyed Greensburg, Kansas in May 2007.

  8. Schedule and cost estimate for an innovative Boston Harbor concert hall

    E-Print Network [OSTI]

    Coste, Amelie, 1982-

    2004-01-01

    This thesis formulates a cost estimate and schedule for constructing the Boston Concert Hall, an innovative hypothetical building composed of two concert halls and a restaurant. Concert Halls are complex and expensive ...

  9. Date Received in Hall:_____________ Received by: ____________

    E-Print Network [OSTI]

    Thomas, David D.

    Additional Comments Include buyout information Include assumption information Deferred If Applicable Central HRL ________________________ _____ Signature Date Additional Comments Include buyout information

  10. Hamerschlag Hall Green Roof Storm Water Retention and Runoff Reduction Performance Lucheng Chen

    E-Print Network [OSTI]

    Andrews, Peter B.

    Hamerschlag Hall Green Roof Storm Water Retention and Runoff Reduction Performance ......................................................................................................................... 2 2. Hamerschlag Hall Green Roof .............................................................................. 13 4. Methods of Storm Analysis and Green Roof Performance Analysis

  11. Physics program in Hall A at CEBAF

    SciTech Connect (OSTI)

    Saha, A.

    1990-01-01

    We present here the physics program planned for Hall A at CEBAF. It encompass exclusive as well as inclusive electromagnetic measurements requiring both high precision and accuracy. The program includes measurements of the elementary form factors of the nucleon, systematic studies of the few nucleon systems (d, {sup 3,4}He), high momentum structure of nuclei, their structure at high Q{sup 2} to look for hadronization and quark effects, spin response of nuclei via ({rvec e}, e{prime}{rvec p}) reactions and the study of nuclear pion fields.

  12. VP: http://ww ertson Hall

    E-Print Network [OSTI]

    Singh, Jaswinder Pal

    Prince April 2 Alumn ertson Hall vent is open a.m. a.m. a.m. a.m. a.m. a.m. p.m. p.m. ww.createsu or informatio //www.princ Princ eton Pr 24-25, 201 ni and Com Saturday 8:00 a.m , Dodds Au n to the pub Alumnia sity · Prince ram stein Galler for meals. yBreakfas marks PrizeWin PrizeWin ceinthe einaRacia orof

  13. Energy spectrum, dissipation, and spatial structures in reduced Hall magnetohydrodynamic

    SciTech Connect (OSTI)

    Martin, L. N.; Dmitruk, P.; Gomez, D. O.

    2012-05-15

    We analyze the effect of the Hall term in the magnetohydrodynamic turbulence under a strong externally supported magnetic field, seeing how this changes the energy cascade, the characteristic scales of the flow, and the dynamics of global magnitudes, with particular interest in the dissipation. Numerical simulations of freely evolving three-dimensional reduced magnetohydrodynamics are performed, for different values of the Hall parameter (the ratio of the ion skin depth to the macroscopic scale of the turbulence) controlling the impact of the Hall term. The Hall effect modifies the transfer of energy across scales, slowing down the transfer of energy from the large scales up to the Hall scale (ion skin depth) and carrying faster the energy from the Hall scale to smaller scales. The final outcome is an effective shift of the dissipation scale to larger scales but also a development of smaller scales. Current sheets (fundamental structures for energy dissipation) are affected in two ways by increasing the Hall effect, with a widening but at the same time generating an internal structure within them. In the case where the Hall term is sufficiently intense, the current sheet is fully delocalized. The effect appears to reduce impulsive effects in the flow, making it less intermittent.

  14. Hall of Honor 2014: Pursuing Explanations, Discovering Robert Brooks

    E-Print Network [OSTI]

    Hall of Honor 2014: Pursuing Explanations, Discovering Ourselves Foundry Robert Brooks Mon, 2014, but there is something more about his experience that earns his recognition in the Foundry Management & Technology Hall at the Department of Materials Science and Engineering at Virginia Tech; Director of VT-FIRE (Foundry Institute

  15. Hall effect at a tunable metal-insulator transition 

    E-Print Network [OSTI]

    Teizer, Winfried; Hellman, F.; Dynes, RC.

    2003-01-01

    Using a rotating magnetic field, the Hall effect in three-dimensional amorphous GdxSi1-x has been measured in the critical regime of the metal-insulator transition for a constant total magnetic field. The Hall coefficient R-0 is negative, indicating...

  16. Hamerschlag Hall Green Roof Project Water Monitoring System

    E-Print Network [OSTI]

    Andrews, Peter B.

    1 Hamerschlag Hall Green Roof Project Water Monitoring System Plans and Specifications Created By: David Carothers Date: 2/17/05 #12;2 Hamerschlag Hall Green Roof Project Date: 2/14/05 Created By: David and the flumes shall be water tight. (Figures 1&2) · The connection between the flume and the green roof membrane

  17. An edition of Hall Caine's The Demon Lover 

    E-Print Network [OSTI]

    Linnstaedter, Joan

    1993-01-01

    Hall Caine, once a popular writer, is now forgotten. This is the first edition of Hall Caine's play The Demon Lover. The text is based on the only known typescript of the play which is corrected in the author's own hand and which was bound...

  18. 143 Caldwell Hall Ithaca, NY 14853-2602

    E-Print Network [OSTI]

    Chen, Tsuhan

    with the Graduate School Student Services Records Team, Room 143 Caldwell Hall, or see the Code online at www the original copy with Graduate School Student Services Records Team, Room 143 Caldwell Hall. When an action in New York City, and the Weill Cornell Graduate School of Medical Sciences in New York City. These five

  19. Pair spectrometer hodoscope for Hall D at Jefferson Lab

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

    Barbosa, Fernando J.; Hutton, Charles L.; Sitnikov, Alexandre; Somov, Alexander S.; Somov, S.; Tolstukhin, Ivan

    2015-09-21

    We present the design of the pair spectrometer hodoscope fabricated at Jefferson Lab and installed in the experimental Hall D. The hodoscope consists of thin scintillator tiles; the light from each tile is collected using wave-length shifting fibers and detected using a Hamamatsu silicon photomultiplier. Light collection was measured using relativistic electrons produced in the tagger area of the experimental Hall B.

  20. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New York, NY 10065 www

  1. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New York, NY 10021-6399 www

  2. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New.1217207109 Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New

  3. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New:1484-1488. #12;The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New York, NY 10021-6399 www.rockefeller.edu/techtransfer Tari Suprapto, Ph.D. Assistant Director Technology

  4. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New Sabharwal, Ph.D. Technology Manager Office of Technology Transfer (212) 327-7092 nsabharwal@rockefeller.edu #12;The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New

  5. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New York, NY 10021-6399 www.rockefeller.edu/techtransfer Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto

  6. Building Room Max Alderson Hall (AH) 134 49 Lecture

    E-Print Network [OSTI]

    Building (BB) W210 63 Auditorium Brown Building (BB) W250 93 Auditorium Brown Building (BB) W280 130 Auditorium Brown Building (BB) W375 24 Lecture Coulbaugh Hall (CO) 131 50 Auditorium Coulbaugh Hall (CO) 209) 210N 123 Auditorium Green Center (GC) 210S 118 Auditorium Green Center (GC) 211 44 Lecture Green

  7. University of Alberta Museums Curator Hall of Fame: Nomination Form

    E-Print Network [OSTI]

    Machel, Hans

    University of Alberta Museums Curator Hall of Fame: Nomination Form General Instructions: 1. Please someone other than the nominator 3. To be eligible for the University of Alberta Museums' Curator Hall of service in the role as Designated Curator of one of the registered University of Alberta Museums

  8. RCP Spring 2011 SPONSORS MEETING PETROLEUM HALL, GREEN CENTER

    E-Print Network [OSTI]

    RCP Spring 2011 SPONSORS MEETING PETROLEUM HALL, GREEN CENTER Colorado School of Mines ­ Friedhoff Hall (Lower Level of Green Center) 1:00 - 2:30 PM Postle Field Reservoir Characterization and Pouce Coupe Fields: Matt Billingsley, CSM and Jared Atkinson, Talisman Energy 3:45 - 5:00 PM

  9. Low-frequency azimuthal stability analysis of Hall Diego Escobar

    E-Print Network [OSTI]

    Carlos III de Madrid, Universidad

    -neutral collision frequency w, we particle and energy wall-loss frequencies i energy loss per actual ionization i,e ion and electron cyclotron Larmor frequencies frequency of perturbation k azimuthal wave number and development of Hall thrusters. Nowadays, there are several companies manufacturing modern Hall thrusters

  10. Aging gauge

    DOE Patents [OSTI]

    Betts, Robert E. (Huntsville, AL); Crawford, John F. (Huntsville, AL)

    1989-01-01

    An aging gauge comprising a container having a fixed or a variable sized t opening with a cap which can be opened to control the sublimation rate of a thermally sublimational material contained within the container. In use, the aging gauge is stored with an item to determine total heat the item is subjected to and also the maximum temperature to which the item has been exposed. The aging gauge container contains a thermally sublimational material such as naphthalene or similar material which has a low sublimation rate over the temperature range from about 70.degree. F. to about 160.degree. F. The aging products determined by analyses of a like item aged along with the aging gauge for which the sublimation amount is determined is employed to establish a calibration curve for future aging evaluation. The aging gauge is provided with a means for determining the maximum temperature exposure (i.e., a thermally indicating material which gives an irreversible color change, Thermocolor pigment). Because of the relationship of doubling reaction rates for increases of 10.degree. C., equivalency of item used in accelerated aging evaluation can be obtained by referring to a calibration curve depicting storage temperature on the abscissa scale and multiplier on the ordinate scale.

  11. AGING GAUGE

    DOE Patents [OSTI]

    Betts, Robert E.; Crawford, John F.

    1989-04-04

    An aging gauge comprising a container having a fixed or a variable sized t opening with a cap which can be opened to control the sublimation rate of a thermally sublimational material contained within the container. In use, the aging gauge is stored with an item to determine total heat the item is subjected to and also the maximum temperature to which the item has been exposed. The aging gauge container contains a thermally sublimational material such as naphthalene or similar material which has a low sublimation rate over the temperature range from about 70.degree. F. to about 160.degree. F. The aging products determined by analyses of a like item aged along with the aging gauge for which the sublimation amount is determined is employed to establish a calibration curve for future aging evaluation. The aging gauge is provided with a means for determining the maximum temperature exposure (i.e., a thermally indicating material which gives an irreversible color change, Thermocolor pigment). Because of the relationship of doubling reaction rates for increases of 10.degree. C., equivalency of item used in accelerated aging evaluation can be obtained by referring to a calibration curve depicting storage temperature on the abscissa scale and multiplier on the ordinate scale.

  12. Undulator Hall Air Temperature Fault Scenarios

    SciTech Connect (OSTI)

    Sevilla, J.; Welch, J.; ,

    2010-11-17

    Recent experience indicates that the LCLS undulator segments must not, at any time following tuning, be allowed to change temperature by more than about {+-}2.5 C or the magnetic center will irreversibly shift outside of acceptable tolerances. This vulnerability raises a concern that under fault conditions the ambient temperature in the Undulator Hall might go outside of the safe range and potentially could require removal and retuning of all the segments. In this note we estimate changes that can be expected in the Undulator Hall air temperature for three fault scenarios: (1) System-wide power failure; (2) Heating Ventilation and Air Conditioning (HVAC) system shutdown; and (3) HVAC system temperature regulation fault. We find that for either a system-wide power failure or an HVAC system shutdown (with the technical equipment left on), the short-term temperature changes of the air would be modest due to the ability of the walls and floor to act as a heat ballast. No action would be needed to protect the undulator system in the event of a system-wide power failure. Some action to adjust the heat balance, in the case of the HVAC power failure with the equipment left on, might be desirable but is not required. On the other hand, a temperature regulation failure of the HVAC system can quickly cause large excursions in air temperature and prompt action would be required to avoid damage to the undulator system.

  13. Cylindrical Hall Thrusters with Permanent Magnets

    SciTech Connect (OSTI)

    Raitses, Yevgeny; Merino, Enrique; Fisch, Nathaniel J.

    2010-10-18

    The use of permanent magnets instead of electromagnet coils for low power Hall thrusters can offer a significant reduction of both the total electric power consumption and the thruster mass. Two permanent magnet versions of the miniaturized cylindrical Hall thruster (CHT) of different overall dimensions were operated in the power range of 50W-300 W. The discharge and plasma plume measurements revealed that the CHT thrusters with permanent magnets and electromagnet coils operate rather differently. In particular, the angular ion current density distribution from the permanent magnet thrusters has an unusual halo shape, with a majority of high energy ions flowing at large angles with respect to the thruster centerline. Differences in the magnetic field topology outside the thruster channel and in the vicinity of the channel exit are likely responsible for the differences in the plume characteristics measured for the CHTs with electromagnets and permanent magnets. It is shown that the presence of the reversing-direction or cusp-type magnetic field configuration inside the thruster channel without a strong axial magnetic field outside the thruster channel does not lead to the halo plasma plume from the CHT. __________________________________________________

  14. Hall's Warehouse Corp Solar Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam: Energy Resources Jump

  15. Hall conductance and topological invariant for open systems

    E-Print Network [OSTI]

    H. Z. Shen; W. Wang; X. X. Yi

    2014-10-07

    The Hall conductivity given by the Kubo formula is a linear response of the quantum transverse transport to a weak electric field. It has been intensively studied for a quantum system without decoherence, but it is barely explored for systems subject to decoherence. In this paper, we develop a formalism to deal with this issue for topological insulators. The Hall conductance for a topological insulator coupled to an environment is derived, the derivation is based on a linear response theory of open system. As an application, the Hall conductance of a two-band topological insulator and a two-dimensional lattice is presented and discussed.

  16. Precise adiabatic transport and geometry of quantum Hall states

    E-Print Network [OSTI]

    Klevtsov, Semyon

    2015-01-01

    We argue that in addition to the Hall conductance and the non-dissipative component of the viscous tensor there exists a third independent kinetic coefficient which is precise on the quantum Hall plateaus. We show that the new coefficient is the Chern number over moduli space of surfaces of genus two or higher and therefore is precise. As such it does not transpire on a sphere or a torus. In the linear response theory this coefficient determines intensive forces exerted on electronic fluid by adiabatic deformations of geometry and represents the effect of the gravitational anomaly. We also present the method of computing the transport coefficients for quantum Hall states.

  17. DARTMOUTH COLLEGE CAMPUS PLANNING & FACILITIES 6111 McKenzie Hall

    E-Print Network [OSTI]

    DARTMOUTH COLLEGE CAMPUS PLANNING & FACILITIES 6111 McKenzie Hall Hanover, New Hampshire 03755 to monitor conditions and help identify the problem. Electric heaters: Electric heaters may be temporarily

  18. TBH-0042- In the Matter of Curtis Hall

    Broader source: Energy.gov [DOE]

    This Initial Agency Decision involves a whistleblower complaint filed by Mr. Curtis Hall (also referred to as the complainant or the individual) under the Department of Energy (DOE) Contractor...

  19. EPR, Bell, Schrodinger's cat, and the Monty Hall Paradox

    E-Print Network [OSTI]

    Doron Cohen

    2007-04-09

    The purpose of this manuscript is to provide a short pedagogical explanation why "quantum collapse" is not a metaphysical event, by pointing out the analogy with a "classical collapse" which is associated with the Monty Hall Paradox.

  20. Imaging transport resonances in the quantum Hall effect

    E-Print Network [OSTI]

    Steele, Gary Alexander

    2006-01-01

    We image charge transport in the quantum Hall effect using a scanning charge accumulation microscope. Applying a DC bias voltage to the tip induces a highly resistive ring-shaped incompressible strip (IS) in a very high ...

  1. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New Sabharwal, Ph.D. Technology Manager Office of Technology Transfer (212) 327-7092 nsabharwal

  2. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New-technique-efficiently-turns-antibodies-into-highly- tuned-nanobodies/ Nidhi Sabharwal, Ph.D. Assistant Director Office of Technology Transfer (212) 327

  3. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New(19):4355-4364 Nidhi Sabharwal, Ph.D. Technology Manager Office of Technology Transfer (212) 327-7092 nsabharwal

  4. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New.1016/j.jmb.2008.01.066 Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327

  5. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New­11067 Cherise T. Bernard, Ph.D. Assistant Technology Manager Technology Transfer (212) 327-8263 cbernard

  6. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New, Ph.D. Technology Manager Office of Technology Transfer (212) 327-7092 nsabharwal@rockefeller.edu #12;

  7. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New,049,814 · US Patent 8,553,143 Nidhi Sabharwal, Ph.D. Technology Manager Technology Transfer (212) 327

  8. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  9. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New, Ph.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  10. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New and Chemotherapy, e-pub PMID:25605353 Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327

  11. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New,383,370. Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto

  12. Directions to East Hall: I-94 (Ford Freeway)

    E-Print Network [OSTI]

    Jonides, John

    Directions to East Hall: I-94 (Ford Freeway) From Detroit and the Detroit Metropolitan on your right. I-96 (also called the Jeffries Freeway) From Parts of Detroit, Redford, M-14, Plymouth

  13. Anomalous Hall effect in a two-dimensional electron gas 

    E-Print Network [OSTI]

    Nunner, Tamara S.; Sinitsyn, N. A.; Borunda, Mario F.; Dugaev, V. K.; Kovalev, A. A.; Abanov, Artem; Timm, Carsten; Jungwirth, T.; Inoue, Jun-ichiro; MacDonald, A. H.; Sinova, Jairo.

    2007-01-01

    The anomalous Hall effect in a magnetic two-dimensional electron gas with Rashba spin-orbit coupling is studied within the Kubo-Streda formalism in the presence of pointlike potential impurities. We find that all contributions ...

  14. Theoretical and experimental investigation of Hall thruster miniaturization

    E-Print Network [OSTI]

    Warner, Noah Zachary, 1978-

    2007-01-01

    Interest in small-scale space propulsion continues to grow with the increasing number of small satellite missions, particularly in the area of formation flight. Miniaturized Hall thrusters have been identified as a candidate ...

  15. Observation of the Integer Quantum Hall Effect in Record High...

    Office of Scientific and Technical Information (OSTI)

    the Integer Quantum Hall Effect in Record High-Mobility Uniform Wafer-Scale Epitaxial Graphene Films Grown on the Si-Face of 6H-SiC(0001). Citation Details In-Document Search...

  16. Quantum Spin Hall Effect in Silicene

    E-Print Network [OSTI]

    Liu, Cheng-Cheng; Yao, Yugui

    2011-01-01

    Recent years have witnessed great interest in the quantum spin Hall effect (QSHE) which is a new quantum state of matter with nontrivial topological property due to the scientific importance as a novel quantum state and the technological applications in spintronics. Taking account of Si, Ge significant importance as semiconductor material and intense interest in the realization of QSHE for spintronics, here we investigate the spin-orbit opened energy gap and the band topology in recently synthesized silicene using first-principles calculations. We demonstrate that silicene with topologically nontrivial electronic structures can realize QSHE by exploiting adiabatic continuity and direct calculation of the Z2 topological invariant. We predict that QSHE in silicene can be observed in an experimentally accessible low temperature regime with the spin-orbit band gap of 1.55 meV, much higher than that of graphene due to large spin-orbit coupling and the low-buckled structure. Furthermore, we find that the gap will i...

  17. Computer Account Request Form ETSU Office of Information Technology

    E-Print Network [OSTI]

    Karsai, Istvan

    Computer Account Request Form ETSU Office of Information Technology 424 Roy S. Nicks Hall, Box 70728 Johnson City, Tennessee 37614 (423) 439-4648 · oithelp@etsu.edu This section for use by the Office _____________________________ ETSU Phone Number _____________________________ Department / Office

  18. Optical detection of spin Hall effect in metals

    SciTech Connect (OSTI)

    Erve, O. M. J. van ‘t, E-mail: Olaf.Vanterve@nrl.navy.mil; Hanbicki, A. T.; McCreary, K. M.; Li, C. H.; Jonker, B. T. [Materials Science and Technology Division, Naval Research Laboratory, Washington, DC 20375 (United States)

    2014-04-28

    Optical techniques have been widely used to probe the spin Hall effect in semiconductors. In metals, however, only electrical methods such as nonlocal spin valve transport, ferromagnetic resonance, or spin torque transfer experiments have been successful. These methods require complex processing techniques and measuring setups. We show here that the spin Hall effect can be observed in non-magnetic metals such as Pt and ?-W, using a standard bench top magneto-optical Kerr system with very little sample preparation. Applying a square wave current and using Fourier analysis significantly improve our detection level. One can readily determine the angular dependence of the induced polarization on the bias current direction (very difficult to do with voltage detection), the orientation of the spin Hall induced polarization, and the sign of the spin Hall angle. This optical approach is free from the complications of various resistive effects, which can compromise voltage measurements. This opens up the study of spin Hall effect in metals to a variety of spin dynamic and spatial imaging experiments.

  19. Stability of Hall equilibria in neutron star crusts

    SciTech Connect (OSTI)

    Marchant, Pablo; Reisenegger, Andreas; Valdivia, Juan Alejandro; Hoyos, Jaime H.

    2014-12-01

    In the solid crusts of neutron stars, the advection of the magnetic field by the current-carrying electrons, an effect known as Hall drift, should play a very important role as the ions remain essentially fixed (as long as the solid does not break). Although Hall drift preserves the magnetic field energy, it has been argued that it may drive a turbulent cascade to scales at which ohmic dissipation becomes effective, allowing a much faster decay in objects with very strong fields. On the other hand, it has been found that there are 'Hall equilibria', i.e., field configurations that are unaffected by Hall drift. Here we address the crucial question of the stability of these equilibria through axially symmetric (two-dimensional (2D)) numerical simulations of Hall drift and ohmic diffusion, with the simplifying assumption of uniform electron density and conductivity. We demonstrate the 2D stability of a purely poloidal equilibrium, for which ohmic dissipation makes the field evolve toward an attractor state through adjacent stable configurations, around which damped oscillations occur. For this field, the decay scales with the ohmic timescale. We also study the case of an unstable equilibrium consisting of both poloidal and toroidal field components that are confined within the crust. This field evolves into a stable configuration, which undergoes damped oscillations superimposed on a slow evolution toward an attractor, just as the purely poloidal one.

  20. VEE-0067- In the Matter of M.L. Halle Oil Service, Inc.

    Broader source: Energy.gov [DOE]

    On August 9, 1999 M.L. Halle Oil Service, Inc. (Halle) of Manchester, New Hampshire, filed an Application for Exception with the Office of Hearings and Appeals (OHA) of the Department of Energy ...

  1. Nonvanishing spin Hall currents in disordered spin-orbit coupling systems 

    E-Print Network [OSTI]

    Nomura, K.; Sinova, Jairo; Jungwirth, T.; Niu, Q.; MacDonald, A. H.

    2005-01-01

    Spin-orbit coupling-induced spin Hall currents are generic in metals and doped semiconductors. It has recently been argued that the spin Hall conductivity can be dominated by an intrinsic contribution that follows from ...

  2. IN VESTIGATION OFN ON CON VEN TION HALL THRUSTER Raitse N.J. Fisch

    E-Print Network [OSTI]

    PARAMETRIC IN VESTIGATION OFN ON ­CON VEN TION HALL THRUSTER Raitse N.J. Fisch Prince ton Plasma Physics Laboratory, Prince ton Unive rsity 451, Prince 08543 ABSTRACT Hall thru te r might be tte cale

  3. Hall effect in a strong magnetic field: Direct comparisons of compressible magnetohydrodynamics and the reduced Hall magnetohydrodynamic equations

    SciTech Connect (OSTI)

    Martin, L. N.; Dmitruk, P.; Gomez, D. O.

    2010-11-15

    In this work we numerically test a model of Hall magnetohydrodynamics in the presence of a strong mean magnetic field: the reduced Hall magnetohydrodynamic model (RHMHD) derived by [Gomez et al., Phys. Plasmas 15, 102303 (2008)] with the addition of weak compressible effects. The main advantage of this model lies in the reduction of computational cost. Nevertheless, up until now the degree of agreement with the original Hall MHD system and the range of validity in a regime of turbulence were not established. In this work direct numerical simulations of three-dimensional Hall MHD turbulence in the presence of a strong mean magnetic field are compared with simulations of the weak compressible RHMHD model. The results show that the degree of agreement is very high (when the different assumptions of RHMHD, such as spectral anisotropy, are satisfied). Nevertheless, when the initial conditions are isotropic but the mean magnetic field is maintained strong, the results differ at the beginning but asymptotically reach a good agreement at relatively short times. We also found evidence that the compressibility still plays a role in the dynamics of these systems, and the weak compressible RHMHD model is able to capture these effects. In conclusion the weak compressible RHMHD model is a valid approximation of the Hall MHD turbulence in the relevant physical context.

  4. Study of the effects of guide field on Hall reconnection

    SciTech Connect (OSTI)

    Tharp, T. D.; Yamada, M.; Ji, H.; Lawrence, E.; Dorfman, S.; Myers, C.; Yoo, J.; Huang, Y.-M.; Bhattacharjee, A.

    2013-05-15

    The results from guide field studies on the Magnetic Reconnection Experiment (MRX) are compared with results from Hall magnetohydrodynamic (HMHD) reconnection simulation with guide field. The quadrupole field, a signature of two-fluid reconnection at zero guide field, is modified by the presence of a finite guide field in a manner consistent with HMHD simulation. The modified Hall current profile contains reduced electron flows in the reconnection plane, which quantitatively explains the observed reduction of the reconnection rate. The present results are consistent with the hypothesis that the local reconnection dynamics is dominated by Hall effects in the collisionless regime of the MRX plasmas. While very good agreement is seen between experiment and simulations, we note that an important global feature of the experiments, a compression of the guide field by the reconnecting plasma, is not represented in the simulations.

  5. On the question of hysteresis in Hall magnetohydrodynamic reconnection

    SciTech Connect (OSTI)

    Sullivan, Brian P.; Bhattacharjee, A.; Huang Yimin

    2010-11-15

    Controversy has been raised regarding the cause of hysteresis, or bistability, of solutions to the equations that govern the geometry of the reconnection region in Hall magnetohydrodynamic (MHD) systems. This brief communication presents a comparison of the frameworks within which this controversy has arisen and illustrates that the Hall MHD hysteresis originally discovered numerically by Cassak et al. [Phys. Rev. Lett. 95, 235002 (2005)] is a different phenomenon from that recently reported by Zocco et al. [Phys. Plasmas 16, 110703 (2009)] on the basis of analysis and simulations in electron MHD with finite electron inertia. We demonstrate that the analytic prediction of hysteresis in EMHD does not describe or explain the hysteresis originally reported in Hall MHD, which is shown to persist even in the absence of electron inertia.

  6. Reconnection events in two-dimensional Hall magnetohydrodynamic turbulence

    SciTech Connect (OSTI)

    Donato, S.; Servidio, S.; Carbone, V. [Dipartimento di Fisica, Universita della Calabria, I-87036 Cosenza (Italy); Dmitruk, P. [Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires and Instituto de Fisica de Buenos Aires, CONICET, Buenos Aires (Argentina); Shay, M. A.; Matthaeus, W. H. [Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States); Cassak, P. A. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)

    2012-09-15

    The statistical study of magnetic reconnection events in two-dimensional turbulence has been performed by comparing numerical simulations of magnetohydrodynamics (MHD) and Hall magnetohydrodynamics (HMHD). The analysis reveals that the Hall term plays an important role in turbulence, in which magnetic islands simultaneously reconnect in a complex way. In particular, an increase of the Hall parameter, the ratio of ion skin depth to system size, broadens the distribution of reconnection rates relative to the MHD case. Moreover, in HMHD the local geometry of the reconnection region changes, manifesting bifurcated current sheets and quadrupolar magnetic field structures in analogy to laminar studies, leading locally to faster reconnection processes in this case of reconnection embedded in turbulence. This study supports the idea that the global rate of energy dissipation is controlled by the large scale turbulence, but suggests that the distribution of the reconnection rates within the turbulent system is sensitive to the microphysics at the reconnection sites.

  7. Admittance of multiterminal quantum Hall conductors at kilohertz frequencies

    SciTech Connect (OSTI)

    Hernández, C.; Consejo, C.; Chaubet, C.; Degiovanni, P.

    2014-03-28

    We present an experimental study of the low frequency admittance of quantum Hall conductors in the [100?Hz, 1?MHz] frequency range. We show that the frequency dependence of the admittance of the sample strongly depends on the topology of the contacts connections. Our experimental results are well explained within the Christen and Büttiker approach for finite frequency transport in quantum Hall edge channels taking into account the influence of the coaxial cables capacitance. In the Hall bar geometry, we demonstrate that there exists a configuration in which the cable capacitance does not influence the admittance measurement of the sample. In this case, we measure the electrochemical capacitance of the sample and observe its dependence on the filling factor.

  8. 18 May 2006 M. Oreglia/ Linda Hall Library 1 From Subatomic Particles to the Cosmos

    E-Print Network [OSTI]

    / Linda Hall Library 11 More than mere classification · By 1970 we had a really good theory18 May 2006 M. Oreglia/ Linda Hall Library 1 From Subatomic Particles to the Cosmos (Particle and Forces Recent Cosmology Synthesis The New Tools #12;18 May 2006 M. Oreglia/ Linda Hall Library 2 Particle

  9. Jeri Muoio's gun ban at West Palm Beach city hall By ANDREW ABRAMSON

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Jeri Muoio's gun ban at West Palm Beach city hall draws fire By ANDREW ABRAMSON Palm Beach Post Jeri Muoio might negotiate on some issues, but when it comes to guns in city hall, she holds her ground with a gun," Muoio said at a city commission meeting last month. "If you're coming into city hall, leave your

  10. Inverse spin Hall effect in Pt/(Ga,Mn)As

    SciTech Connect (OSTI)

    Nakayama, H.; Chen, L.; Chang, H. W.; Ohno, H.; Matsukura, F.

    2015-06-01

    We investigate dc voltages under ferromagnetic resonance in a Pt/(Ga,Mn)As bilayer structure. A part of the observed dc voltage is shown to originate from the inverse spin Hall effect. The sign of the inverse spin Hall voltage is the same as that in Py/Pt bilayer structure, even though the stacking order of ferromagnetic and nonmagnetic layers is opposite to each other. The spin mixing conductance at the Pt/(Ga,Mn)As interface is determined to be of the order of 10{sup 19?}m{sup ?2}, which is about ten times greater than that of (Ga,Mn)As/p-GaAs.

  11. Nanoconstriction-based spin-Hall nano-oscillator

    SciTech Connect (OSTI)

    Demidov, V. E.; Urazhdin, S.; Zholud, A.; Sadovnikov, A. V.; Demokritov, S. O.

    2014-10-27

    We experimentally demonstrate magnetic nano-oscillators driven by pure spin current produced by the spin Hall effect in a bow tie-shaped nanoconstriction. These devices exhibit single-mode auto-oscillation and generate highly-coherent electronic microwave signals with a significant power and the spectral linewidth as low as 6.2?MHz at room temperature. The proposed simple and flexible device geometry is amenable to straightforward implementation of advanced spintronic structures such as chains of mutually coupled spin-Hall nano-oscillators.

  12. The Honorable,Edward Rendell, '. City Hall

    Office of Legacy Management (LM)

    we are.pleased to forward the enclosed information related to the,former. Penn Salt Manufacturing' Co. site in your jurisdiction that performed.work for DOE or its...

  13. Strategic Planning Student Town Hall Event December 2, 2014

    E-Print Network [OSTI]

    Sun, Yi

    Strategic Planning Student Town Hall Event December 2, 2014 into the College's strategic planning initiative. Introductory remarks included a description of the Provost's role at the College and of his charge to help create the strategic plan with broadbased campus input

  14. Strategic Planning Alumni Town Hall Event November 19, 2014

    E-Print Network [OSTI]

    Sun, Yi

    Strategic Planning Alumni Town Hall Event November 19, 2014 Provost in spring 2013 and will culminate in a strategic plan to span the years leading the College to its 175th. There are two parts of the strategic plan: the Framework is a broad description of the College's goals

  15. Water Poster Competition Place: Rudder Tower Exhibit Hall

    E-Print Network [OSTI]

    Water Poster Competition Place: Rudder Tower Exhibit Hall Time: 9:00am to 4:00pm (judging from 2pm to 4pm) Click here to register. "Let's Talk About Water" and Movie Event Movie: "Last Call at the Oasis WMHS Program News C. Prakash Khedun Water is vital for life. Life form, as we know, would not have

  16. 143 Caldwell Hall Ithaca, NY 14853-2602

    E-Print Network [OSTI]

    Chen, Tsuhan

    contact the Graduate School Student Services Records Team at gradstudserv@cornell.edu, or 607 the A Exam Results form. You must submit the form to the Office of Student Services, Records Team, Graduate School, 143 Caldwell Hall within three days of your exam. Form Instructions: Print the form and bring

  17. RCP Fall 2011 SPONSORS MEETING PETROLEUM HALL, GREEN CENTER

    E-Print Network [OSTI]

    Back into Seismic Interpretation 12:00 - 1:00 PM Lunch Friedhoff Hall 1:00 - 1:30 PM David Hays Seismic: The Business Value Challenge: Alex Martinez and Mike Matheney, ExxonMobil 9:45 - 10:00 AM Delhi Field Time-Lapse Multicomponent Seismic Acquisition: Randy Luckiw and Jeff Hislop, Tesla-Conquest 10

  18. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New. References Sandu, et al. 2010. J. Cell. Biol, 190:1039-52. Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  19. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New of squamous cell carcinomas. Science, 343(6168):309-313 Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  20. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;The Rockefeller University Office of Technology.S. patent application US 2013-0064762-A1 is pending. Tari Suprapto, Ph.D. Assistant Director Technology

  1. The Rockefeller University Office of Technology Transfer 502 Founders Hall

    E-Print Network [OSTI]

    The Rockefeller University Office of Technology Transfer 502 Founders Hall 1230 York Avenue New://www.nature.com/tp/journal/v4/n1/abs/tp2013124a.html Tari Suprapto, Ph.D. Assistant Director Technology Transfer (212) 327

  2. Energy Efficiency in Low Voltage Hall Thrusters Jerry L. Ross

    E-Print Network [OSTI]

    King, Lyon B.

    Energy Efficiency in Low Voltage Hall Thrusters Jerry L. Ross Lyon B. King Energy efficiency/s of xenon. Acceleration and current efficiencies were compared to thrust efficiency over a range of magnet coil current values of 0 A - 2.5 A. Acceleration efficiencies were obtained with a 4-grid Retarding

  3. The future of the simplex method Julian Hall

    E-Print Network [OSTI]

    Hall, Julian

    The future of the simplex method Julian Hall School of Mathematics University of Edinburgh 29th June 2010 The future of the simplex method #12;Overview · Linear programming Introduction Mathematics-sparsity Parallelism Dual simplex method Software · Future Serial performance Multicore challenge Data parallelism

  4. RESIDENCE HALL AND FURNISHED APARTMENT HOUSING AND DINING LICENSE AGREEMENT

    E-Print Network [OSTI]

    Finley Jr., Russell L.

    RESIDENCE HALL AND FURNISHED APARTMENT HOUSING AND DINING LICENSE AGREEMENT HOUSING DATES OF OCCUPANCY: A. I understand that my Housing License Agreement provides occupancy for an assigned space that the full terms of this license agreement will be enforced should I move in prior to August 23, 2014

  5. Schaver Music Recital Hall 480 W. Hancock, Detroit

    E-Print Network [OSTI]

    Berdichevsky, Victor

    SMRH Schaver Music Recital Hall 480 W. Hancock, Detroit Old Main Building CAA Community Arts Auditorium 5451 Cass Avenue, Detroit Max M. Fisher Music Center 3711 Woodward Avenue, Detroit (313) 577-1795 · music.wayne.edu Department of Music 1321 Old Main Detroit, MI 48202 Department of Music NONPROFIT US

  6. Schaver Music Recital Hall 480 W. Hancock, Detroit

    E-Print Network [OSTI]

    Berdichevsky, Victor

    SMRH Schaver Music Recital Hall 480 W. Hancock, Detroit Old Main Building CAA Community Arts Auditorium 5451 Cass Avenue, Detroit Max M. Fisher Music Center 3711 Woodward Avenue, Detroit (313) 577-1795 · music@wayne.edu music.wayne.edu In cooperation with the Detroit Symphony Orchestra, the Department

  7. Shielded electrostatic probe for nonperturbing plasma measurements in Hall thrusters

    E-Print Network [OSTI]

    Shielded electrostatic probe for nonperturbing plasma measurements in Hall thrusters D. Staack,a) Y a low secondary electron emission material, such as metal, shields the probe ceramic tube, is shown to function without producing such large perturbations. A segmentation of this shield further prevents probe

  8. 1 Austin Hall rms 189 & 405 2 Bexell rm 117

    E-Print Network [OSTI]

    Escher, Christine

    189 & 405 2 Bexell · rm 117 3 Covell · rm 127 4 Crop Science Bldg · rm 427 5 Furman Hall · 4th flr B078a & B218a 9 Kelley Engineering · rm 3032 10 Linus Pauling Science Bldg · 1st flr Women's showers

  9. Accounts Payable, 2010 Blankenship Hall, 901 Woody Hayes Drive, Columbus, OH 43210-1016 Nonresident Alien Payment Request

    E-Print Network [OSTI]

    Clark, Bunny

    Alien Payment Request Mail completed documents to: Accounts Payable, 2010 Blankenship Hall, 901 Woody

  10. Aging in American Convents

    E-Print Network [OSTI]

    Corwin, Anna I.

    2009-01-01

    Schuster. Snowdon, David 2001 Aging with Grace: What the Nunreligion, devotion, and aging. CSW JAN09 update tocAging in American Convents FIELDWORK REPORT by Anna I.

  11. Scanning Hall Probe Microscopy of Magnetic Vortices inVery Underdoped yttrium-barium-copper-oxide

    SciTech Connect (OSTI)

    Guikema, Janice Wynn; /SLAC, SSRL

    2005-12-02

    Since their discovery by Bednorz and Mueller (1986), high-temperature cuprate superconductors have been the subject of intense experimental research and theoretical work. Despite this large-scale effort, agreement on the mechanism of high-T{sub c} has not been reached. Many theories make their strongest predictions for underdoped superconductors with very low superfluid density n{sub s}/m*. For this dissertation I implemented a scanning Hall probe microscope and used it to study magnetic vortices in newly available single crystals of very underdoped YBa{sub 2}Cu{sub 3}O{sub 6+x} (Liang et al. 1998, 2002). These studies have disproved a promising theory of spin-charge separation, measured the apparent vortex size (an upper bound on the penetration depth {lambda}{sub ab}), and revealed an intriguing phenomenon of ''split'' vortices. Scanning Hall probe microscopy is a non-invasive and direct method for magnetic field imaging. It is one of the few techniques capable of submicron spatial resolution coupled with sub-{Phi}{sub 0} (flux quantum) sensitivity, and it operates over a wide temperature range. Chapter 2 introduces the variable temperature scanning microscope and discusses the scanning Hall probe set-up and scanner characterizations. Chapter 3 details my fabrication of submicron GaAs/AlGaAs Hall probes and discusses noise studies for a range of probe sizes, which suggest that sub-100 nm probes could be made without compromising flux sensitivity. The subsequent chapters detail scanning Hall probe (and SQUID) microscopy studies of very underdoped YBa{sub 2}Cu{sub 3}O{sub 6+x} crystals with T{sub c} {le} 15 K. Chapter 4 describes two experimental tests for visons, essential excitations of a spin-charge separation theory proposed by Senthil and Fisher (2000, 2001b). We searched for predicted hc/e vortices (Wynn et al. 2001) and a vortex memory effect (Bonn et al. 2001) with null results, placing upper bounds on the vison energy inconsistent with the theory. Chapter 5 discusses imaging of isolated vortices as a function of T{sub c}. Vortex images were fit with theoretical magnetic field profiles in order to extract the apparent vortex size. The data for the lowest T{sub c}'s (5 and 6.5 K) show some inhomogeneity and suggest that {lambda}{sub ab} might be larger than predicted by the T{sub c} {proportional_to} n{sub s}(0)/m* relation first suggested by results of Uemura et al. (1989) for underdoped cuprates. Finally, Chapter 6 examines observations of apparent ''partial vortices'' in the crystals. My studies of these features indicate that they are likely split pancake vortex stacks. Qualitatively, these split stacks reveal information about pinning and anisotropy in the samples. Collectively these magnetic imaging studies deepen our knowledge of cuprate superconductivity, especially in the important regime of low superfluid density.

  12. Banner Database Clone Request Form ETSU Office of Information Technology

    E-Print Network [OSTI]

    Karsai, Istvan

    Banner Database Clone Request Form ETSU Office of Information Technology 424 Roy S. Nicks Hall, Box 70728 Johnson City, Tennessee 37614 (423) 439-4648 · oithelp@etsu.edu Section 1. Requestor Information ] [ first ] [ middle ] ETSU Phone Number ETSU e-mail address Section 2. Clone Information Clone Source

  13. Recent Results of TMD Measurements from Jefferson Lab Hall A

    SciTech Connect (OSTI)

    Jiang, Xiaodong

    2013-10-01

    This slide-show presents results on transverse momentum distributions. The presentation covers: target single-spin asymmetry (SSA) (in parity conserving interactions); • Results of JLab Hall A polarized {sup 3}He target TMD measurement; • Semi-­?inclusive deep-inelastic scattering channels (E06-010); • Target single-spin asymmetry A{sub UT}, Collins and Sivers SSA on neutron; • Double-spin asymmetry A{sub LT}, extract TMD g{sub 1T} on neutron; • Inclusive channels SSA (E06-010, E05-015, E07-013) • Target SSA: inclusive {sup 3}He(e,e’) quasi-elastic scattering; • Target SSA: inclusive {sup 3}He(e,e’) deep inelastic-elastic scattering; • New SIDIS experiments planned in Hall-A for JLab-12 GeV.

  14. Intermittency in Hall-magnetohydrodynamics with a strong guide field

    SciTech Connect (OSTI)

    Rodriguez Imazio, P.; Martin, L. N.; Dmitruk, P.; Mininni, P. D.; National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado 80307

    2013-05-15

    We present a detailed study of intermittency in the velocity and magnetic field fluctuations of compressible Hall-magnetohydrodynamic turbulence with an external guide field. To solve the equations numerically, a reduced model valid when a strong guide field is present is used. Different values for the ion skin depth are considered in the simulations. The resulting data are analyzed computing field increments in several directions perpendicular to the guide field, and building structure functions and probability density functions. In the magnetohydrodynamic limit, we recover the usual results with the magnetic field being more intermittent than the velocity field. In the presence of the Hall effect, field fluctuations at scales smaller than the ion skin depth show a substantial decrease in the level of intermittency, with close to monofractal scaling.

  15. Spectroscopic Research of Lambda Hypdernuclei at JLab Hall C

    SciTech Connect (OSTI)

    Gogami, Toshiyuki [Tohoku University; et. al.,

    2014-03-01

    A Lambda hyperon which has a strangeness can be bound in deep inside of a nucleus since a ? does not suffer from the Pauli exclusion principle from nucleons. Thus, a ? could be a useful tool to investigate inside of a nucleus. Since 2000, Lambda hypernuclear spectroscopic experiments by the (e,e'k) reaction have been performed at the experimental hall C in Thomas Jefferson National Accelerator Facility (JLab Hall C). An experiment, JLab E05-115 was carried out to investigate Lambda hypernuclei with a wide mass range (the mass number, A = 7, 9, 10, 12, 52). The latest analysis status of JLab E05-115 experiment is discussed in the present article.

  16. Effects of Enhanced Eathode Electron Emission on Hall Thruster Operation

    SciTech Connect (OSTI)

    Y. Raitses, A. Smirnov and N. J. Fisch

    2009-04-24

    Interesting discharge phenomena are observed that have to do with the interaction between the magnetized Hall thruster plasma and the neutralizing cathode. The steadystate parameters of a highly ionized thruster discharge are strongly influenced by the electron supply from the cathode. The enhancement of the cathode electron emission above its self-sustained level affects the discharge current and leads to a dramatic reduction of the plasma divergence and a suppression of large amplitude, low frequency discharge current oscillations usually related to an ionization instability. These effects correlate strongly with the reduction of the voltage drop in the region with the fringing magnetic field between the thruster channel and the cathode. The measured changes of the plasma properties suggest that the electron emission affects the electron cross-field transport in the thruster discharge. These trends are generalized for Hall thrusters of various configurations.

  17. Hall viscosity from elastic gauge fields in Dirac crystals

    E-Print Network [OSTI]

    Cortijo, Alberto; Landsteiner, Karl; Vozmediano, María A H

    2015-01-01

    The combination of Dirac physics and elasticity has been explored at length in graphene where the so--called "elastic gauge fields" have given rise to an entire new field of research and applications: Straintronics. The fact that these elastic fields couple to fermions as the electromagnetic field, implies that many electromagnetic responses will have elastic counterparts not explored before. In this work we will first show that the presence of elastic gauge fields will be the rule rather than the exception in most of the topologically non--trivial materials in two and three dimensions. In particular we will extract the elastic gauge fields associated to the recently observed Weyl semimetals, the "three dimensional graphene". As it is known, quantum electrodynamics suffers from the chiral anomaly whose consequences have been recently explored in matter systems. We will show that, associated to the physics of the anomalies, and as a counterpart of the Hall conductivity, elastic materials will have a Hall visco...

  18. Twenty-First Water Reactor Safety Information Meeting. Volume 3, Primary system integrity; Aging research, products and applications; Structural and seismic engineering; Seismology and geology: Proceedings

    SciTech Connect (OSTI)

    Monteleone, S.

    1994-04-01

    This three-volume report contains 90 papers out of the 102 that were presented at the Twenty-First Water Reactor Safety Information Meeting held at the Bethesda Marriott Hotel, Bethesda, Maryland, during the week of October 25-27, 1993. The papers are printed in the order of their presentation in each session and describe progress and results of programs in nuclear safety research conducted in this country and abroad. Foreign participation in the meeting included papers presented by researchers from France, Germany, Japan, Russia, Switzerland, Taiwan, and United Kingdom. The titles of the papers and the names of the authors have been updated and may differ from those that appeared in the final program of the meeting. Selected papers were indexed separately for inclusion in the Energy Science and Technology Database.

  19. Excitonic gap, phase transition, and quantum Hall effect in graphene

    E-Print Network [OSTI]

    V. P. Gusynin; V. A. Miransky; S. G. Sharapov; I. A. Shovkovy

    2006-11-23

    We suggest that physics underlying the recently observed removal of sublattice and spin degeneracies in graphene in a strong magnetic field describes a phase transition connected with the generation of an excitonic gap. The experimental form of the Hall conductivity is reproduced and the main characteristics of the dynamics are described. Predictions of the behavior of the gap as a function of temperature and a gate voltage are made.

  20. Gradient instabilities of electromagnetic waves in Hall thruster plasma

    SciTech Connect (OSTI)

    Tomilin, Dmitry

    2013-04-15

    This paper presents a linear analysis of gradient plasma instabilities in Hall thrusters. The study obtains and analyzes the dispersion equation of high-frequency electromagnetic waves based on the two-fluid model of a cold plasma. The regions of parameters corresponding to unstable high frequency modes are determined and the dependence of the increments and intrinsic frequencies on plasma parameters is obtained. The obtained results agree with those of previously published studies.

  1. Transition in Electron Transport in a Cylindrical Hall Thruster

    SciTech Connect (OSTI)

    J.B. Parker, Y. Raitses, and N.J. Fisch

    2010-06-02

    Through the use of high-speed camera and Langmuir probe measurements in a cylindrical Hall thruster, we report the discovery of a rotating spoke of increased plasma density and light emission which correlates with increased electron transport across the magnetic field. As cathode electron emission is increased, a sharp transition occurs where the spoke disappears and electron transport decreases. This suggests that a significant fraction of the electron current might be directed through the spoke.

  2. Mode transition of a Hall thruster discharge plasma

    SciTech Connect (OSTI)

    Hara, Kentaro, E-mail: kenhara@umich.edu; Sekerak, Michael J., E-mail: msekerak@umich.edu; Boyd, Iain D.; Gallimore, Alec D. [University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2014-05-28

    A Hall thruster is a cross-field plasma device used for spacecraft propulsion. An important unresolved issue in the development of Hall thrusters concerns the effect of discharge oscillations in the range of 10–30?kHz on their performance. The use of a high speed Langmuir probe system and ultra-fast imaging of the discharge plasma of a Hall thruster suggests that the discharge oscillation mode, often called the breathing mode, is strongly correlated to an axial global ionization mode. Stabilization of the global oscillation mode is achieved as the magnetic field is increased and azimuthally rotating spokes are observed. A hybrid-direct kinetic simulation that takes into account the transport of electronically excited atoms is used to model the discharge plasma of a Hall thruster. The predicted mode transition agrees with experiments in terms of the mean discharge current, the amplitude of discharge current oscillation, and the breathing mode frequency. It is observed that the stabilization of the global oscillation mode is associated with reduced electron transport that suppresses the ionization process inside the channel. As the Joule heating balances the other loss terms including the effects of wall loss and inelastic collisions, the ionization oscillation is damped, and the discharge oscillation stabilizes. A wide range of the stable operation is supported by the formation of a space charge saturated sheath that stabilizes the electron axial drift and balances the Joule heating as the magnetic field increases. Finally, it is indicated from the numerical results that there is a strong correlation between the emitted light intensity and the discharge current.

  3. Town Hall Meeting | OpenEI Community

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeterInformation PolicyTinna GroupToppan Printing CoTowPathTown

  4. Town Hall meeting | OpenEI Community

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeterInformation PolicyTinna GroupToppan Printing CoTowPathTownTown

  5. Lees-Kubota Lecture Hall, Guggenheim 101

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp GraduateResidential EnergyOrganizationLecturers Lecturers

  6. Curriculum vitae -Jeffrey B. Kaplan 1/5/13 Contact information

    E-Print Network [OSTI]

    Carlini, David

    Curriculum vitae - Jeffrey B. Kaplan 1/5/13 1 Contact information Department of Biology Hurst Hall, graduate #12;Curriculum vitae - Jeffrey B. Kaplan 1/5/13 2 Awards Year(s) Award or position 1983 Recipient

  7. NREL Fall 2013 Seminar Series "Using Aquatic Ecosystem Science to Inform Freshwater Resource Use and Sustainability"

    E-Print Network [OSTI]

    MacDonald, Lee

    NREL Fall 2013 Seminar Series "Using Aquatic Ecosystem Science to Inform Freshwater Resource Use and Sustainability" Facilitated by Ed Hall (CSU NREL) and Stephanie Kampf (CSU ESS) Over the next 50 years water

  8. Magnetic shielding of a laboratory Hall thruster. II. Experiments

    SciTech Connect (OSTI)

    Hofer, Richard R., E-mail: richard.r.hofer@jpl.nasa.gov; Goebel, Dan M.; Mikellides, Ioannis G.; Katz, Ira [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109 (United States)

    2014-01-28

    The physics of magnetic shielding in Hall thrusters were validated through laboratory experiments demonstrating essentially erosionless, high-performance operation. The magnetic field near the walls of a laboratory Hall thruster was modified to effectively eliminate wall erosion while maintaining the magnetic field topology away from the walls necessary to retain efficient operation. Plasma measurements at the walls validate our understanding of magnetic shielding as derived from the theory. The plasma potential was maintained very near the anode potential, the electron temperature was reduced by a factor of two to three, and the ion current density was reduced by at least a factor of two. Measurements of the carbon backsputter rate, wall geometry, and direct measurement of plasma properties at the wall indicate that the wall erosion rate was reduced by a factor of 1000 relative to the unshielded thruster. These changes effectively eliminate wall erosion as a life limitation in Hall thrusters, enabling a new class of deep-space missions that could not previously be attempted.

  9. Non-abelian fractional quantum hall effect for fault-resistant...

    Office of Scientific and Technical Information (OSTI)

    decoherence processes without additional error-correction. It is believed that the low energy excitations of the so-called 52 fractional quantum Hall (FQH) state may obey...

  10. Orbitronics: the Intrinsic Orbital Hall Effect in p-Doped Silicon

    SciTech Connect (OSTI)

    Bernevig, B.Andrei; Hughes, Taylor L.; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-01-15

    The spin Hall effect depends crucially on the intrinsic spin-orbit coupling of the energy band. Because of the smaller spin-orbit coupling in silicon, the spin Hall effect is expected to be much reduced. We show that the electric field in p-doped silicon can induce a dissipationless orbital current in a fashion reminiscent of the spin Hall effect. The vertex correction due to impurity scattering vanishes and the effect is therefore robust against disorder. The orbital Hall effect can lead to the accumulation of local orbital momentum at the edge of the sample, and can be detected by the Kerr effect.

  11. Office for Student Financial Affairs S107 Criser Hall Division Enrollment Management PO Box 114025

    E-Print Network [OSTI]

    Sin, Peter

    S107 Criser Hall Division Enrollment Management. · Student is now employed and has to reduce course load to accommodate employment

  12. Thoughts on Aging

    E-Print Network [OSTI]

    Feher, George

    2010-01-01

    The impetus of writing about aging came the other day afterMagnetic Resonance Thoughts on Aging George Feher Received:at Springerlink.com When we, aging scientists, fade away and

  13. Wharton Undergraduate Division G95 Jon M. Huntsman Hall 3730 Walnut Street Philadelphia, PA 19104 spike.wharton.upenn.edu/ugrprogram

    E-Print Network [OSTI]

    George, Edward I.

    Wharton Undergraduate Division · G95 Jon M. Huntsman Hall · 3730 Walnut Street · Philadelphia, PA Division · G95 Jon M. Huntsman Hall · 3730 Walnut Street · Philadelphia, PA 19104 spike

  14. Directions & Parking School of Information Studies

    E-Print Network [OSTI]

    Crowston, Kevin

    Directions & Parking School of Information Studies Syracuse University ­ Hinds Hall 100 University Street will be on your right.) Take Adams Street up the hill until it dead ends into Ostrom Avenue Take a right on Ostrom Avenue Take a right on Euclid Avenue Continue on Euclid across Comstock Avenue

  15. PennAccess: Towne Building Entrance Information

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    PennAccess: Towne Building Entrance Information: 220 South 33rd Street . Philadelphia . PA . 19104 1. Towne Building is accessible through the main entrance to Levine Hall off Chancellor Walk. This entrance does not access the basement of the Towne Building. 2. There is also access through the Levine

  16. Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://www.unh.edu/erg/cstev/ Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://www.unh.edu/erg/cstev/

    E-Print Network [OSTI]

    Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://www.unh.edu/erg/cstev/ Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://www.unh.edu/erg/cstev/ Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://www.unh.edu/erg/cstev/ Pervious Concrete Pavement

  17. Titanium diboride ceramic fiber composites for Hall-Heroult cells

    DOE Patents [OSTI]

    Besmann, T.M.; Lowden, R.A.

    1990-05-29

    An improved cathode structure is described for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 C can be used.

  18. Ion dynamics in an E?×?B Hall plasma accelerator

    SciTech Connect (OSTI)

    Young, Christopher V. Lucca Fabris, Andrea; Cappelli, Mark A.

    2015-01-26

    We show the time evolution of the ion velocity distribution function in a Hall plasma accelerator during a 20?kHz natural, quasi-periodic plasma oscillation. We apply a time-synchronized laser induced fluorescence technique at different locations along the channel midline, obtaining time- and spatially resolved ion velocity measurements. Strong velocity and density fluctuations and multiple ion populations are observed throughout the so-called “breathing mode” ionization instability, opening an experimental window into the detailed ion dynamics and physical processes at the heart of such devices.

  19. Microwave generation by spin Hall nanooscillators with nanopatterned spin injector

    SciTech Connect (OSTI)

    Zholud, A., E-mail: azholud@emory.edu; Urazhdin, S. [Department of Physics, Emory University, Atlanta, Georgia 30322 (United States)

    2014-09-15

    We experimentally study spin Hall nano-oscillators based on Pt/ferromagnet bilayers with nanopatterned Pt spin injection layer. We demonstrate that both the spectral characteristics and the electrical current requirements can be simultaneously improved by reducing the spin injection area. Moreover, devices with nanopatterned Pt spin injector exhibit microwave generation over a wide temperature range that extends to room temperature. Studies of devices with additional Pt spacers under the device electrodes show that the oscillation characteristics are affected not only by the spin injection geometry but also by the effects of Pt/ferromagnet interface on the dynamical properties of the ferromagnet.

  20. Scalar spin chirality and quantum hall effect on triangular lattices

    SciTech Connect (OSTI)

    Martin, Ivar [Los Alamos National Laboratory; Batista, Cristian D [Los Alamos National Laboratory

    2008-01-01

    We study the Kondo Lattice and Hubbard models on a triangular lattice for band filling factor 3/4. We show that a simple non-coplanar chiral spin ordering (scalar spin chirality) is naturally realized in both models due to perfect nesting of the fermi surface. The resulting triple-Q magnetic ordering is a natural counterpart of the collinear Neel ordering of the half-filled square lattice Hubbard model. We show that the obtained chiral phase exhibits a spontaneous quantum Hall-effect with {sigma}{sub xy} = e{sup 2}/h.

  1. Titanium diboride ceramic fiber composites for Hall-Heroult cells

    DOE Patents [OSTI]

    Besmann, Theodore M. (Knoxville, TN); Lowden, Richard A. (Knoxville, TN)

    1990-01-01

    An improved cathode structure for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 deg. C can be used.

  2. Adjudication of Two Contracts for Building Work on Hall 186 and Laboratory 28 Intended for Preparations for SPS Physics

    E-Print Network [OSTI]

    1974-01-01

    Adjudication of Two Contracts for Building Work on Hall 186 and Laboratory 28 Intended for Preparations for SPS Physics

  3. ST 361: Introduction to Statistics for Engineers (Fall 2013) Tu & Th 3:00-4:15pm, 450 Riddick Hall

    E-Print Network [OSTI]

    Lu, Wenbin

    @stat.ncsu.edu Office: 5212 SAS Hall Phone: (919) 515-1915 Office Hours: Tuesday 1:30pm-2:30pm at 5212 SAS Hall: 1101 SAS Hall Mailbox: 4260 SAS Hall (where you turn in late homework) Text: Applied Statistics/Cole. ISBN: 0-534-46719-9, year 2005. Course content: Chapters 1-3, 5, 7-8,and 11 of the text will be covered

  4. PUBLICATIONS OF CHARLES A.S. HALL {Chronological} as of October 2012. Books are in bold.

    E-Print Network [OSTI]

    Hall, Charles A.S.

    ************************************************************************ 5. *Hall, C.A.S. 1972. Migration and metabolism in a temperate stream ecosystem. Ecology 53 (4): 585. Edaphic factors override a possible gradient of ecological maturity indices in a small stream. Limnol metabolism in the Northern hemisphere. Nature 255: 136-138. 14. Hall, C.A.S. and R. Moll. 1975. Methods

  5. ENERGY HARVESTING & DATA ANALYSIS OF SMART LIGHTING IN SUTARDJA DAI HALL

    E-Print Network [OSTI]

    Agogino, Alice M.

    1 ENERGY HARVESTING & DATA ANALYSIS OF SMART LIGHTING IN SUTARDJA DAI HALL STEFANO MORET - ENERGY HARVESTING 4 1.1 ­ INTRODUCTION AND RESEARCH GOALS 4 1 AND FUTURE DEVELOPMENT 9 PART II - ENERGY ANALYSIS 11 2.1 ­ SUTARDJA DAI HALL

  6. PHYSICAL REVIEW B 83, 195317 (2011) Microwave-induced Hall resistance in bilayer electron systems

    E-Print Network [OSTI]

    Gusev, Guennady

    2011-01-01

    on dissipative and Hall resistance in high-quality bilayer electron systems is investigated experimentally. We of the microwave electric field and polarization exhibit a strong and nontrivial power and polarization dependencePHYSICAL REVIEW B 83, 195317 (2011) Microwave-induced Hall resistance in bilayer electron systems S

  7. 2228 Engineering Hall 1415 Engineering Drive Madison, Wisconsin 53706-1607 USA

    E-Print Network [OSTI]

    Sheridan, Jennifer

    2228 Engineering Hall 1415 Engineering Drive Madison, Wisconsin 53706-1607 USA Phone: +1 (608) 262 Department of Civil and Environmental Engineering New Jersey Institute of Technology Friday, 16 March 2012 9:30 AM in Room 2321 Engineering Hall Me, Myself and I ­ a woman in engineering (life overview) with Q

  8. PIC simulation of SPT Hall thrusters : high power operation and wall effects

    E-Print Network [OSTI]

    Sullivan, Kay Ueda, 1980-

    2004-01-01

    The fully kinetic Hall Thruster simulation built by [1] and used by [2] is further refined and used to obtain results for the P5 SPT Hall thruster at 3kw and 5kw operation. Performance data agree well with experiments [3], ...

  9. Hall Effect Thruster Plasma Plume Characterization with Probe Measurements and Self-Similar Fluid

    E-Print Network [OSTI]

    Carlos III de Madrid, Universidad

    Hall Effect Thruster Plasma Plume Characterization with Probe Measurements and Self-Similar Fluid§ Universidad Polit´ecnica de Madrid, Madrid 28040 Spain A characterization of the far-field plasma plume of two Hall effect thrusters was per- formed by means of a comparison between experimental plasma properties

  10. Secondary electron emission from dielectric materials of a Hall thruster with segmented electrodes

    E-Print Network [OSTI]

    Secondary electron emission from dielectric materials of a Hall thruster with segmented electrodes parameters in Hall thrusters depend strongly on the yield of secondary electron emission from channel walls. Comparative measurements of the yield of secondary electron emission at low energies of primary electrons were

  11. September 30, 2010 Watch the Web Town Hall on UC Benefits

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    September 30, 2010 Watch the Web Town Hall on UC Benefits Those who missed last Friday's live university issues can still watch an archived tape of the Web Town Hall on UC Benefits. The event Anderson. Panelists tried to answer as many questions as they could from both the live and web audience

  12. Hybrid-PIC Simulation of a Hall Thruster Plume on an Unstructured Grid with DSMC Collisions

    E-Print Network [OSTI]

    Peraire, Jaime

    1 Hybrid-PIC Simulation of a Hall Thruster Plume on an Unstructured Grid with DSMC Collisions Murat in dissimilar environments. A new hybrid- PIC DSMC simulation (called AQUILA) is being developed to work within includes many new aspects that expand the capabilities of Hall thruster plume simulations. The hybrid-PIC

  13. Numerical analysis of high-frequency azimuthal oscillations in Hall thrusters

    E-Print Network [OSTI]

    Carlos III de Madrid, Universidad

    Numerical analysis of high-frequency azimuthal oscillations in Hall thrusters IEPC-2015-371/ISTS of the Hall thruster discharge is analysed against axial-azimuthal perturbations in the high frequency range covers high frequency azimuthal oscillations, usually known as electron-drift waves. The influence

  14. Professor Lars Samuelson -The first Swede inducted into the Cleantech Scandinavia Hall of Fame

    E-Print Network [OSTI]

    Linke, Heiner

    Professor Lars Samuelson - The first Swede inducted into the Cleantech Scandinavia Hall of Fame Consortium, was today inducted at an award ceremony today at the Cleantech Venture Day in Malmö. The hall business driven researchers in cleantech growth. Lars is one of the leading researchers in nano

  15. Plasma-Induced Erosion on Ceramic Wall Structures in Hall-Effect Thrusters

    E-Print Network [OSTI]

    Walker, Mitchell

    Plasma-Induced Erosion on Ceramic Wall Structures in Hall-Effect Thrusters Thomas Burton University) hot-pressed composite, denoted as M26, was used as the insulating chamber wall for a xenon plasma Hall expansion of BN in the amorphous silica matrix. Exfoliation accompanied the microcracking in BN and resulted

  16. Magnetic shielding of walls from the unmagnetized ion beam in a Hall thruster

    SciTech Connect (OSTI)

    Mikellides, Ioannis G.; Katz, Ira; Hofer, Richard R.; Goebel, Dan M. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States)] [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States)

    2013-01-14

    We demonstrate by numerical simulations and experiments that the unmagnetized ion beam formed in a Hall thruster can be controlled by an applied magnetic field in a manner that reduces by 2-3 orders of magnitude deleterious ion bombardment of the containing walls. The suppression of wall erosion in Hall thrusters to such low levels has remained elusive for decades.

  17. Temperature dependence of conductance fluctuations in quantum Hall multilayers H. A. Walling,1

    E-Print Network [OSTI]

    Xu, Jing

    )]. This surface phase dominates vertical transport at low temperatures that freeze out parallel bulk transport.2 fluctuations in low-temperature, vertical transport through quantum Hall multilayers. The mesas studied dependence of reproduc- ible conductance fluctuations in quantum Hall multilayers. The vertical transport

  18. Observation of Chiral Heat Transport in the Quantum Hall Regime G. Granger,1

    E-Print Network [OSTI]

    Eisenstein, Jim

    Observation of Chiral Heat Transport in the Quantum Hall Regime G. Granger,1 J. P. Eisenstein,1 and J. L. Reno2 1 Condensed Matter Physics, California Institute of Technology, Pasadena, California; published 23 February 2009) Heat transport in the quantum Hall regime is investigated using micron

  19. Policy on Building use during Ventilation Outage: School of Science Roger Bacon Hall and Morrell Science Center

    E-Print Network [OSTI]

    Policy on Building use during Ventilation Outage: School of Science Roger Bacon Hall and Morrell not only laboratories, but also the entire building, including non-laboratory space. When Roger Bacon Hall environment. When a laboratory in Roger Bacon Hall or Morrell Science Center has no ventilation or reduced

  20. Materials Research in the Information Age

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

    at taking the guesswork out of new materials discoveries, especially those aimed at energy applications like batteries. (Roy Kaltschmidt, LBNL) New materials are crucial to...

  1. Hall magnetohydrodynamic reconnection in the plasmoid unstable regime

    SciTech Connect (OSTI)

    Baalrud, S. D.; Bhattacharjee, A.; Huang, Y.-M.; Germaschewski, K.

    2011-09-15

    A set of reduced Hall magnetohydrodynamic (MHD) equations are used to evaluate the stability of large aspect ratio current sheets to the formation of plasmoids (secondary islands). Reconnection is driven by resistivity in this analysis, which occurs at the resistive skin depth d{sub {eta}}{identical_to}S{sub L}{sup -1/2}{radical}(L{nu}{sub A}/{gamma}), where S{sub L} is the Lundquist number, L, the length of the current sheet, {nu}{sub A,} the Alfven speed, and {gamma}, the growth rate. Modifications to a recent resistive MHD analysis [N. F. Loureiro et al., Phys. Plasmas 14, 100703 (2007)] arise when collisions are sufficiently weak that d{sub {eta}} is shorter than the ion skin depth d{sub i}{identical_to}c/{omega}{sub pi}. Secondary islands grow faster in this Hall MHD regime: the maximum growth rate scales as (d{sub i}/L){sup 6/13}S{sub L}{sup 7/13}{nu}{sub A}/L and the number of plasmoids as (d{sub i}/L){sup 1/13}S{sub L}{sup 11/26}, compared to S{sub L}{sup 1/4}{nu}{sub A}/L and S{sup 3/8}, respectively, in resistive MHD.

  2. Thermoluminescence measurements of neutron streaming through JET Torus Hall ducts

    E-Print Network [OSTI]

    Obryk, Barbara; Conroy, Sean; Syme, Brian D; Popovichev, Sergey; Stamatelatos, Ion E; Vasilopoulou, Theodora; Bilski, Pawe?; Contributors, JET EFDA

    2014-01-01

    Thermoluminescence detectors (TLD) were used for dose measurements at JET. Several hundreds of LiF detectors of various types, standard LiF:Mg,Ti and highly sensitive LiF:Mg,Cu,P were produced. LiF detectors consisting of natural lithium are sensitive to slow neutrons, their response to neutrons being enhanced by 6Li-enriched lithium or suppressed by using lithium consisting entirely of 7Li. Pairs of 6LiF/7LiF detectors allow distinguishing between neutron/non-neutron components of a radiation field. For detection of neutrons of higher energy, polyethylene (PE-300) moderators were used. TLDs, located in the centre of cylindrical moderators, were installed at eleven positions in the JET hall and the hall labyrinth in July 2012, and exposure took place during the last two weeks of the experimental campaign. Measurements of the gamma dose were obtained for all positions over a range of about five orders of magnitude variation. As the TLDs were also calibrated in a thermal neutron field, the neutron fluence at th...

  3. Hall viscosity from elastic gauge fields in Dirac crystals

    E-Print Network [OSTI]

    Alberto Cortijo; Yago Ferreirós; Karl Landsteiner; María A. H. Vozmediano

    2015-06-16

    The combination of Dirac physics and elasticity has been explored at length in graphene where the so--called "elastic gauge fields" have given rise to an entire new field of research and applications: Straintronics. The fact that these elastic fields couple to fermions as the electromagnetic field, implies that many electromagnetic responses will have elastic counterparts not explored before. In this work we will first show that the presence of elastic gauge fields will be the rule rather than the exception in most of the topologically non--trivial materials in two and three dimensions. In particular we will extract the elastic gauge fields associated to the recently observed Weyl semimetals, the "three dimensional graphene". As it is known, quantum electrodynamics suffers from the chiral anomaly whose consequences have been recently explored in matter systems. We will show that, associated to the physics of the anomalies, and as a counterpart of the Hall conductivity, elastic materials will have a Hall viscosity in two and three dimensions with a coefficient orders of magnitude bigger than the previously studied response. The magnitude and generality of the new effect will greatly improve the chances for the experimental observation of this topological, non dissipative response.

  4. Pulsed field UCu5 Hall effect and magnetization (I)

    SciTech Connect (OSTI)

    Mcdonald, Ross D [Los Alamos National Laboratory; Ayala - Valenzuela, Oscar E [Los Alamos National Laboratory; Ben, Ueland G [Los Alamos National Laboratory; Corneliu, Miclea [Los Alamos National Laboratory; Movshovich, R [Los Alamos National Laboratory; Tompson, J. D. [Los Alamos National Laboratory; Bauer, E [Los Alamos National Laboratory; Batista, C. D. [Los Alamos National Laboratory; Martin, I [Los Alamos National Laboratory

    2011-01-14

    Prior studies of UCu{sub 5} identified the material as undergoing antiferromagnetic ordering at a temperature of 15 K with a subsequent reduction of the electronic density of states, evident as sharp upturn in resistance, at 1.4 K. High field magnetization measurements indicate a complex temperature-field phase diagram comprising of numerous phases below 15 K up and up to 60 T, with NMR and neutron measurements identifying both simple anitferromagnetic and 4Q-magnetic structures at low fields. The purpose of our investigations is to identify the possibly strong coupling between the itinerant electrons and the local spin structures, such as quantum amplification of the Hall effect due to (field induced) non-colinear spin textures. Comparison with prior literature indicates the sensitivity of the phase stability of the different spin textures to composition and sample preparation. However, the 'simplified' phase diagram of this composition offers the possibility of exploring, anomalous Hall properties arising from a field induced non-colinear spin texture over a wide range of temperatures and magnetic fields.

  5. Information Technologies Activity Report M A Y AU G U S T 20 1 3

    E-Print Network [OSTI]

    Firestone, Jeremy

    1 Information Technologies Activity Report M A Y ­ AU G U S T 20 1 3 Voice over Internet Protocol Technology Services (IT-ATS) to incorporate information learned from the technology "testing" room in 218 Gore Hall and combined that information with the latest A/V technology to outfit the classrooms

  6. Quantum Anomalous Hall Effect in Hg_1-yMn_yTe Quantum Wells

    SciTech Connect (OSTI)

    Liu, Chao-Xing; /Tsinghua U., Beijing /Stanford U., Phys. Dept.; Qi, Xiao-Liang; /Stanford U., Phys. Dept.; Dai, Xi; Fang, Zhong; /Beijing, Inst. Phys.; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-03-19

    The quantum Hall effect is usually observed when the two-dimensional electron gas is subjected to an external magnetic field, so that their quantum states form Landau levels. In this work we predict that a new phenomenon, the quantum anomalous Hall effect, can be realized in Hg{sub 1-y}Mn{sub y}Te quantum wells, without the external magnetic field and the associated Landau levels. This effect arises purely from the spin polarization of the Mn atoms, and the quantized Hall conductance is predicted for a range of quantum well thickness and the concentration of the Mn atoms. This effect enables dissipationless charge current in spintronics devices.

  7. Hall MHD Stability and Turbulence in Magnetically Accelerated Plasmas

    SciTech Connect (OSTI)

    H. R. Strauss

    2012-11-27

    The object of the research was to develop theory and carry out simulations of the Z pinch and plasma opening switch (POS), and compare with experimental results. In the case of the Z pinch, there was experimental evidence of ion kinetic energy greatly in excess of the ion thermal energy. It was thought that this was perhaps due to fine scale turbulence. The simulations showed that the ion energy was predominantly laminar, not turbulent. Preliminary studies of a new Z pinch experiment with an axial magnetic field were carried out. The axial magnetic is relevant to magneto - inertial fusion. These studies indicate the axial magnetic field makes the Z pinch more turbulent. Results were also obtained on Hall magnetohydrodynamic instability of the POS.

  8. Quantitative analytical model for magnetic reconnection in hall magnetohydrodynamics

    SciTech Connect (OSTI)

    Simakov, Andrei N

    2008-01-01

    Magnetic reconnection is of fundamental importance for laboratory and naturally occurring plasmas. Reconnection usually develops on time scales which are much shorter than those associated with classical collisional dissipation processes, and which are not fully understood. While such dissipation-independent (or 'fast') reconnection rates have been observed in particle and Hall magnetohydrodynamics (MHD) simulations and predicted analytically in electron MHD, a quantitative analytical theory of fast reconnection valid for arbitrary ion inertial lengths d{sub i} has been lacking. Here we propose such a theory without a guide field. The theory describes two-dimensional magnetic field diffusion regions, provides expressions for the reconnection rates, and derives a formal criterion for fast reconnection in terms of dissipation parameters and di. It also demonstrates that both open X-point and elongated diffusion regions allow dissipation-independent reconnection and reveals a possibility of strong dependence of the reconnection rates on d{sub i}.

  9. Crystalline phases of graphene quantum Hall polariton fluids

    E-Print Network [OSTI]

    Francesco M. D. Pellegrino; Vittorio Giovannetti; Allan H. MacDonald; Marco Polini

    2015-05-26

    There is growing experimental interest in coupling cavity photons to the cyclotron resonance excitations of electron liquids in high-mobility semiconductor quantum wells or graphene sheets. These media offer unique platforms to carry out fundamental studies of exciton-polariton condensation and cavity quantum electrodynamics in a regime in which electron-electron (e-e) interactions are expected to play a pivotal role. Focusing on graphene, we present a theoretical study of the impact of e-e interactions on a quantum Hall polariton fluid (QHPF), i.e. a fluid of magneto-excitons resonantly coupled to cavity photons. We show that e-e interactions are responsible for an instability of graphene integer QHPFs towards a crystalline phase. We demonstrate that this phase can be detected by measuring the collective excitation spectra, which soften at a characteristic wave vector of the order of the inverse magnetic length.

  10. Spin-Hall-assisted magnetic random access memory

    SciTech Connect (OSTI)

    Brink, A. van den, E-mail: a.v.d.brink@tue.nl; Swagten, H. J. M.; Koopmans, B. [Physics of Nanostructures, Eindhoven University of Technology, 5600 MB Eindhoven (Netherlands)] [Physics of Nanostructures, Eindhoven University of Technology, 5600 MB Eindhoven (Netherlands); Cosemans, S.; Manfrini, M.; Van Roy, W.; Min, T. [imec, Kapeldreef 75, B-3001 Leuven (Belgium)] [imec, Kapeldreef 75, B-3001 Leuven (Belgium); Cornelissen, S.; Vaysset, A. [imec, Kapeldreef 75, B-3001 Leuven (Belgium) [imec, Kapeldreef 75, B-3001 Leuven (Belgium); Departement elektrotechniek (ESAT), KU Leuven, Kasteelpark Arenberg 10, B-3001 Heverlee (Belgium)

    2014-01-06

    We propose a write scheme for perpendicular spin-transfer torque magnetoresistive random-access memory that significantly reduces the required tunnel current density and write energy. A sub-nanosecond in-plane polarized spin current pulse is generated using the spin-Hall effect, disturbing the stable magnetic state. Subsequent switching using out-of-plane polarized spin current becomes highly efficient. Through evaluation of the Landau-Lifshitz-Gilbert equation, we quantitatively assess the viability of this write scheme for a wide range of system parameters. A typical example shows an eight-fold reduction in tunnel current density, corresponding to a fifty-fold reduction in write energy, while maintaining a 1?ns write time.

  11. The lead-glass electromagnetic calorimeters for the magnetic spectrometers in Hall C at Jefferson Lab

    E-Print Network [OSTI]

    H. Mkrtchyan; R. Carlini; V. Tadevosyan; J. Arrington; A. Asaturyan; M. E. Christy; D. Dutta; R. Ent; H. C. Fenker; D. Gaskell; T. Horn; M. K. Jones; C. E. Keppel; D. J. Mack; S. P. Malace; A. Mkrtchyan; M. I. Niculescu; J. Seely; V. Tvaskis; S. A. Wood; S. Zhamkochyan

    2012-04-28

    The electromagnetic calorimeters of the various magnetic spectrometers in Hall C at Jefferson Lab are presented. For the existing HMS and SOS spectrometers design considerations, relevant construction information, and comparisons of simulated and experimental results are included. The energy resolution of the HMS and SOS calorimeters is better than $\\sigma/E \\sim 6%/\\sqrt E $, and pion/electron ($\\pi/e$) separation of about 100:1 has been achieved in energy range 1 -- 5 GeV. Good agreement has been observed between the experimental and simulated energy resolutions, but simulations systematically exceed experimentally determined $\\pi^-$ suppression factors by close to a factor of two. For the SHMS spectrometer presently under construction details on the design and accompanying GEANT4 simulation efforts are given. The anticipated performance of the new calorimeter is predicted over the full momentum range of the SHMS. Good electron/hadron separation is anticipated by combining the energy deposited in an initial (preshower) calorimeter layer with the total energy deposited in the calorimeter.

  12. Feedback Control Of An Azimuthal Oscillation In The ExB Discharge of Hall Thrusters

    SciTech Connect (OSTI)

    Griswold, Martin E.; Ellison, C. L.; Raitses, Y.; Fisch, N. J.

    2012-04-06

    Feedback control of a low-frequency azimuthal wave known as a "rotating spoke" in the ExB discharge of a cylindrical Hall thruster was demonstrated. The rotating spoke is an m=1 azimuthal variation in density, electron temperature, and potential that rotates at about 10% of the local E x B electron rotation speed. It causes increased electron transport across the magnetic field and is suspected to be an ionization wave. Feedback control of this wave required special consideration because, although it causes a rotating azimuthal variation in the current density to the anode, it does not show up as a signal in the total thruster discharge current. Therefore, an extra source of information was needed to track the oscillation, which was addressed by using a special anode that was split azimuthally into four segments. The current to each segment oscillates as the rotating spoke passes over it, and feedback is accomplished by resistors connected in series with each anode segment which cause the voltage on a segment to decrease in proportion to the current through that segment. The feedback resulted in the disappearance of a coherent azimuthal wave and a decrease in the time-averaged total discharge current by up to 13.2%.

  13. Nonequilibrium noise in transport across a tunneling contact between ? = 2/3 fractional quantum Hall edges

    E-Print Network [OSTI]

    Snizhko, K.

    In a recent experimental paper [Bid et al., Nature 466, 585 (2010)] a qualitative confirmation of the existence of upstream neutral modes at the ? = 2/3 quantum Hall edge was reported. Using the chiral Luttinger liquid ...

  14. Investigation of magnetic proximity effect in Ta/YIG bilayer Hall bar structure

    SciTech Connect (OSTI)

    Yang, Yumeng [Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583 (Singapore); Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore); Wu, Baolei; Wu, Yihong, E-mail: elewuyh@nus.edu.sg [Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583 (Singapore); Yao, Kui; Shannigrahi, Santiranjan [Institute of Materials Research and Engineering, A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore); Zong, Baoyu [Temasek Laboratories, National University of Singapore, T-Lab Building, 5A Engineering Drive 1, 09-02, Singapore 117411 (Singapore)

    2014-05-07

    In this work, the investigation of magnetic proximity effect was extended to Ta which has been reported to have a negative spin Hall angle. Magnetoresistance (MR) and Hall measurements for in-plane and out-of-plane applied magnetic field sweeps were carried out at room temperature. The size of the MR ratio observed (?10{sup ?5}) and its magnetization direction dependence are similar to that reported in Pt/yttrium iron garnet, both of which can be explained by the spin Hall magnetoresistance theory. Additionally, a flip of magnetoresistance polarity is observed at 4?K in the temperature dependent measurements, which can be explained by the magnetic proximity effect induced anisotropic magnetoresistance at low temperature. Our findings suggest that both magnetic proximity effect and spin Hall magnetoresistance have contribution to the recently observed unconventional magnetoresistance effect.

  15. SU(3) and SU(4) Singlet Quantum Hall States at v = 2/3

    E-Print Network [OSTI]

    Wu, Fengcheng

    We report on an exact diagonalization study of fractional quantum Hall states at a filling factor of ? = 2/3 in a system with a fourfold degenerate n = 0 Landau level and SU(4) symmetric Coulomb interactions. Our investigation ...

  16. Quantum anomalous Hall effect with cold atoms trapped in a square lattice 

    E-Print Network [OSTI]

    Liu, Xiong-Jun; Liu, Xin; Wu, Congjun; Sinova, Jairo

    2010-01-01

    We propose an experimental scheme to realize the quantum anomalous Hall effect in an anisotropic square optical lattice which can be generated from available experimental setups of double-well lattices with minor modifications. A periodic gauge...

  17. Quantum Hall effect and Landau-level crossing of Dirac fermions in trilayer graphene

    E-Print Network [OSTI]

    Taychatanapat, Thiti

    The physics of Dirac fermions in condensed-matter systems has received extraordinary attention following the discoveries of two new types of quantum Hall effect in single-layer and bilayer graphene1, 2, 3. The electronic ...

  18. Parallelization of particle-in-cell simulation modeling Hall-effect thrusters

    E-Print Network [OSTI]

    Fox, Justin M., 1981-

    2005-01-01

    MIT's fully kinetic particle-in-cell Hall thruster simulation is adapted for use on parallel clusters of computers. Significant computational savings are thus realized with a predicted linear speed up efficiency for certain ...

  19. Irradiation tests of ITER candidate Hall sensors using two types of neutron spectra

    SciTech Connect (OSTI)

    Duran, I. [Institute of Plasma Physics AS CR, v. v. i., Association EURATOM/IPP.CR, 182 00 Prague 8 (Czech Republic); Bolshakova, I.; Holyaka, R. [Magnetic Sensor Laboratory, Lviv Polytechnic National University, 790 31 Lviv (Ukraine); Viererbl, L.; Lahodova, Z. [Nuclear Research Institute plc., 250 68 Husinec-Rez (Czech Republic); Sentkerestiova, J. [Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, 115 19 Prague 1 (Czech Republic); Bem, P. [Nuclear Physics Institute AS CR, v. v. i., 250 68 Husinec-Rez (Czech Republic)

    2010-10-15

    We report on irradiation tests of InSb based Hall sensors at two irradiation facilities with two distinct types of neutron spectra. One was a fission reactor neutron spectrum with a significant presence of thermal neutrons, while another one was purely fast neutron field. Total neutron fluence of the order of 10{sup 16} cm{sup -2} was accumulated in both cases, leading to significant drop of Hall sensor sensitivity in case of fission reactor spectrum, while stable performance was observed at purely fast neutron spectrum. This finding suggests that performance of this particular type of Hall sensors is governed dominantly by transmutation. Additionally, it further stresses the need to test ITER candidate Hall sensors under neutron flux with ITER relevant spectrum.

  20. SDSU General Catalog 2015-2016 259 OFFICE: Storm Hall 314

    E-Print Network [OSTI]

    Gallo, Linda C.

    SDSU General Catalog 2015-2016 259 OFFICE: Storm Hall 314 TELEPHONE: 619-594-5437 / FAX: 619 as the arrangement of societies on the earth's surface, water and land use patterns, urban- ization and urban life

  1. WIPP Employee Inducted Into Mine Rescue Hall of Fame - WIPP Teams...

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

    award from Neal Merrifield, administrator for the Mine Safety and Health Administration MetalNon-Metal mines, after Kessler was inducted into the National Mine Rescue Hall of Fame...

  2. The $?$-deformed Segal-Bargmann transform is a Hall type transform

    E-Print Network [OSTI]

    Stephen Bruce Sontz

    2009-07-13

    We present an explanation of how the $\\mu$-deformed Segal-Bargmann spaces, that are studied in various articles of the author in collaboration with Angulo, Echevarria and Pita, can be viewed as deserving their name, that is, how they should be considered as a part of Segal-Bargmann analysis. This explanation relates the $\\mu$-deformed Segal-Bargmann transforms to the generalized Segal-Bargmann transforms introduced by B. Hall using heat kernel analysis. All the versions of the $\\mu$-deformed Segal-Bargmann transform can be understood as Hall type transforms. In particular, we define a $\\mu$-deformation of Hall's "Version C" generalized Segal-Bargmann transform which is then shown to be a $\\mu$-deformed convolution with a $\\mu$-deformed heat kernel followed by analytic continuation. Our results are generalizations and analogues of the results of Hall.

  3. The Honoradle':Rudolf Juiliani City'Hall New York, New York I0007

    Office of Legacy Management (LM)

    ,' FEi,l 6 jg& ,. . . ' I s. i ,-' .' ,, -. ,. The Honoradle':Rudolf Juiliani City'Hall New York, New York I0007 i ', 1" Dear MayorJuilianiz ,. : ", ,. Secretary'of,Energy,Hazel...

  4. Electron Cross-field Transport in a Low Power Cylindrical Hall Thruster

    SciTech Connect (OSTI)

    A. Smirnov; Y. Raitses; N.J. Fisch

    2004-06-24

    Conventional annular Hall thrusters become inefficient when scaled to low power. Cylindrical Hall thrusters, which have lower surface-to-volume ratio, are therefore more promising for scaling down. They presently exhibit performance comparable with conventional annular Hall thrusters. Electron cross-field transport in a 2.6 cm miniaturized cylindrical Hall thruster (100 W power level) has been studied through the analysis of experimental data and Monte Carlo simulations of electron dynamics in the thruster channel. The numerical model takes into account elastic and inelastic electron collisions with atoms, electron-wall collisions, including secondary electron emission, and Bohm diffusion. We show that in order to explain the observed discharge current, the electron anomalous collision frequency {nu}{sub B} has to be on the order of the Bohm value, {nu}{sub B} {approx} {omega}{sub c}/16. The contribution of electron-wall collisions to cross-field transport is found to be insignificant.

  5. Melatonin and the aging brain

    E-Print Network [OSTI]

    BONDY, S; SHARMAN, E

    2007-01-01

    mitochondrial decay of aging. Mol. Aspects Med. 26, Ames,the degenerative diseases of aging. Proc. Natl. Acad. Sci.2004. Retardation of brain aging by chronic treatment with

  6. Synaptic plasticity in early aging.

    E-Print Network [OSTI]

    Lynch, Gary; Rex, Christopher S; Gall, Christine M

    2006-01-01

    life-span. Neurobiol. Aging 26, 511–520. Aicardi, G. ,patterns of mammalian brain aging: distribution of cathepsinand dystrophic dendrites in aging dogs resembles that in

  7. Running Head: EMOTION AND AGING Emotion and Aging

    E-Print Network [OSTI]

    Mather, Mara

    Running Head: EMOTION AND AGING Emotion and Aging Mara Mather, M., & Ponzio, A. (in press). Emotion and aging. In L. Feldman Barrett, M. All of these basic mechanisms and contextual factors change in normal aging

  8. Parylene C Aging Studies.

    SciTech Connect (OSTI)

    Achyuthan, Komandoor; Sawyer, Patricia Sue.; Mata, Guillermo Adrian; White II, Gregory Von; Bernstein, Robert

    2014-09-01

    Parylene C is used in a device because of its conformable deposition and other advantages. Techniques to study Parylene C aging were developed, and %22lessons learned%22 that could be utilized for future studies are the result of this initial study. Differential Scanning Calorimetry yielded temperature ranges for Parylene C aging as well as post-deposition treatment. Post-deposition techniques are suggested to improve Parylene C performance. Sample preparation was critical to aging regimen. Short-term (~40 days) aging experiments with free standing and ceramic-supported Parylene C films highlighted %22lessons learned%22 which stressed further investigations in order to refine sample preparation (film thickness, single sided uniform coating, machine versus laser cutting, annealing time, temperature) and testing issues (%22necking%22) for robust accelerated aging of Parylene C.

  9. Environmental Applications of Geographic Information Systems Dr. Tom Frank www.sdal.uiuc.edu tdfrank@illinois.edu

    E-Print Network [OSTI]

    Frank, Thomas D.

    Environmental Applications of Geographic Information Systems Dr. Tom Frank www.sdal.uiuc.edu tdfrank@illinois.edu Office: 216 Davenport Hall syllabus #12;What is a Geographic Information System you to the data sources and software, geographic information systems, that can be used to analyze

  10. An interchangeable scanning Hall probe/scanning SQUID microscope

    SciTech Connect (OSTI)

    Tang, Chiu-Chun; Lin, Hui-Ting; Wu, Sing-Lin [Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Chen, Tse-Jun; Wang, M. J. [Institute of Astronomy and Astrophysics, Academia Sinica, Taipei 10617, Taiwan (China); Ling, D. C. [Department of Physics, Tamkang University, Tamsui Dist., New Taipei City 25137, Taiwan (China); Chi, C. C.; Chen, Jeng-Chung [Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan (China)

    2014-08-15

    We have constructed a scanning probe microscope for magnetic imaging, which can function as a scanning Hall probe microscope (SHPM) and as a scanning SQUID microscope (SSM). The scanning scheme, applicable to SHPM and SSM, consists of a mechanical positioning (sub) micron-XY stage and a flexible direct contact to the sample without a feedback control system for the Z-axis. With the interchangeable capability of operating two distinct scanning modes, our microscope can incorporate the advantageous functionalities of the SHPM and SSM with large scan range up to millimeter, high spatial resolution (?4 ?m), and high field sensitivity in a wide range of temperature (4.2 K-300 K) and magnetic field (10{sup ?7} T-1 T). To demonstrate the capabilities of the system, we present magnetic images scanned with SHPM and SSM, including a RbFeB magnet and a nickel grid pattern at room temperature, surface magnetic domain structures of a La{sub 2/3}Ca{sub 1/3}MnO{sub 3} thin film at 77 K, and superconducting vortices in a striped niobium film at 4.2 K.

  11. Habitat Restoration/Enhancement Fort Hall Reservation : 2008 Annual Report.

    SciTech Connect (OSTI)

    Osborne, Hunter

    2009-07-23

    Habitat enhancement, protection and monitoring were the focus of the Resident Fisheries Program during 2008. Enhancement and protection included sloping, fencing and planting wetlands plugs at sites on Spring Creek (Head-waters). Many previously constructed instream structures (rock barbs and wing dams) were repaired throughout the Fort Hall Indian Reservation (Reservation). Physical sampling during 2008 included sediment and depth measurements (SADMS) in Spring Creek at the Car Removal site. SADMS, used to track changes in channel morphology and specifically track movements of silt through Bottoms stream systems were completed for 5 strata on Spring Creek. Water temperature and chemistry were monitored monthly on Spring Creek, Clear Creek, Diggie Creek, and Portneuf (Jimmy Drinks) and Blackfoot rivers. Fish population densities and biomass were sampled in five reservation streams which included nine sites. Sampling protocols were identical to methods used in past years. Numbers of fish in Spring Creek series remained relatively low, however, there was an increase of biomass overall since 1993. Salmonid fry densities were monitored near Broncho Bridge and were similar to 2006, and 2007, however, as in years past, high densities of macrophytes make it very difficult to see fry in addition to lack of field technicians. Mean catch rate by anglers on Bottoms streams stayed the same as 2007 at 1.5/hr. Numbers of fish larger than 18-inches caught by anglers increased from 2007 at .20 to .26/hr.

  12. Dependence of the intrinsic spin-Hall effect on spin-orbit interaction character RID B-5617-2009 

    E-Print Network [OSTI]

    Nomura, K.; Sinova, Jairo; Sinitsyn, NA; MacDonald, AH.

    2005-01-01

    We report on a comparative numerical study of the spin-Hall conductivity in two dimensions for three different spin-orbit interaction models

  13. Banner HR Account Request Form ETSU Office of Information Technology

    E-Print Network [OSTI]

    Karsai, Istvan

    Banner HR Account Request Form ETSU Office of Information Technology 424 Roy Nicks Hall, Box 70728 Johnson City, Tennessee 37614 (423) 439-4648 · oithelp@etsu.edu This section for use by the Office _______________________________________________________________________________________ [ last ] [ first ] [ middle ] ETSU Domain Name _____________________________ School / College

  14. Banner Student Account Request ETSU Office of Information Technology

    E-Print Network [OSTI]

    Karsai, Istvan

    Banner Student Account Request Form ETSU Office of Information Technology 424 Roy Nicks Hall, Box 70728 Johnson City, Tennessee 37614 (423) 439-4648 · oithelp@etsu.edu This section for use by the Office ______________________________________________________________________________________ [last] [first] [middle] ETSU Domain Name ____________________@etsu.edu School / College

  15. Aging and decision making 

    E-Print Network [OSTI]

    Miller, Sophie

    2010-06-30

    The study sought to clarify the effects of aging in regard to decision making abilities. Decision making is dependent upon the Frontal Cortex structures; the Orbitofrontal Cortex and the Dorsolateral Prefrontal Cortex. These structures are thought...

  16. Affective Neuroscience of Aging The Affective Neuroscience of Aging

    E-Print Network [OSTI]

    Mather, Mara

    Affective Neuroscience of Aging - 1 - The Affective Neuroscience of Aging Mara Mather University running title: Affective Neuroscience of Aging #12;Affective Neuroscience of Aging - 2 - Contents INTRODUCTION THE FATE OF EMOTION-RELATED BRAIN REGIONS AND MONOAMINERGIC NEUROTRANSMITTER SYSTEMS IN AGING

  17. Information and integrity in the

    E-Print Network [OSTI]

    De Montfort University

    Information and integrity in the information age Converging technologies have changed the way we should look at information. Traditional paradigms of information suppliers and consumers no longer seem of information and its associated integrity using illustrations from the virtual world Converging technologies

  18. Security Awareness Programs During orientation in September, students are informed of services offered by the University

    E-Print Network [OSTI]

    Escher, Christine

    Security Awareness Programs During orientation in September, students are informed of services. Video and slide presentations outline ways to maintain personal safety and residence hall security. Students are told about crime on campus and in surrounding neighborhoods. Similar information is presented

  19. Onset of fast reconnection in Hall magnetohydrodynamics mediated by the plasmoid instability

    SciTech Connect (OSTI)

    Huang Yimin; Bhattacharjee, A.; Sullivan, Brian P.

    2011-07-15

    The role of a super-Alfvenic plasmoid instability in the onset of fast reconnection is studied by means of the largest Hall magnetohydrodynamics simulations to date, with system sizes up to 10{sup 4} ion skin depths (d{sub i}). It is demonstrated that the plasmoid instability can facilitate the onset of rapid Hall reconnection, in a regime where the onset would otherwise be inaccessible because the Sweet-Parker width is significantly above d{sub i}. However, the topology of Hall reconnection is not inevitably a single stable X-point. There exists an intermediate regime where the single X-point topology itself exhibits instability, causing the system to alternate between a single X-point geometry and an extended current sheet with multiple X-points produced by the plasmoid instability. Through a series of simulations with various system sizes relative to d{sub i}, it is shown that system size affects the accessibility of the intermediate regime. The larger the system size is, the easier it is to realize the intermediate regime. Although our Hall magnetohydrodynamics (MHD) model lacks many important physical effects included in fully kinetic models, the fact that a single X-point geometry is not inevitable raises the interesting possibility for the first time that Hall MHD simulations may have the potential to realize reconnection with geometrical features similar to those seen in fully kinetic simulations, namely, extended current sheets and plasmoid formation.

  20. Magnetic shielding of Hall thrusters at high discharge voltages

    SciTech Connect (OSTI)

    Mikellides, Ioannis G., E-mail: Ioannis.G.Mikellides@jpl.nasa.gov; Hofer, Richard R.; Katz, Ira; Goebel, Dan M. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States)

    2014-08-07

    A series of numerical simulations and experiments have been performed to assess the effectiveness of magnetic shielding in a Hall thruster operating in the discharge voltage range of 300–700?V (I{sub sp}???2000–2700?s) at 6?kW, and 800?V (I{sub sp} ? 3000) at 9?kW. At 6?kW, the magnetic field topology with which highly effective magnetic shielding was previously demonstrated at 300?V has been retained for all other discharge voltages; only the magnitude of the field has been changed to achieve optimum thruster performance. It is found that magnetic shielding remains highly effective for all discharge voltages studied. This is because the channel is long enough to allow hot electrons near the channel exit to cool significantly upon reaching the anode. Thus, despite the rise of the maximum electron temperature in the channel with discharge voltage, the electrons along the grazing lines of force remain cold enough to eliminate or reduce significantly parallel gradients of the plasma potential near the walls. Computed maximum erosion rates in the range of 300–700?V are found not to exceed 10{sup ?2}?mm/kh. Such rates are ?3 orders of magnitude less than those observed in the unshielded version of the same thruster at 300?V. At 9?kW and 800?V, saturation of the magnetic circuit did not allow for precisely the same magnetic shielding topology as that employed during the 6-kW operation since this thruster was not designed to operate at this condition. Consequently, the maximum erosion rate at the inner wall is found to be ?1 order of magnitude higher (?10{sup ?1}?mm/kh) than that at 6?kW. At the outer wall, the ion energy is found to be below the sputtering yield threshold so no measurable erosion is expected.

  1. The Quantum Spin Hall Effect: Theory and Experiment

    SciTech Connect (OSTI)

    Konig, Markus; Buhmann, Hartmut; Molenkamp, Laurens W.; /Wurzburg U.; Hughes, Taylor L.; /Stanford U., Phys. Dept.; Liu, Chao-Xing; /Tsinghua U., Beijing /Stanford U., Phys. Dept.; Qi, Xiao-Liang; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-03-19

    The search for topologically non-trivial states of matter has become an important goal for condensed matter physics. Recently, a new class of topological insulators has been proposed. These topological insulators have an insulating gap in the bulk, but have topologically protected edge states due to the time reversal symmetry. In two dimensions the helical edge states give rise to the quantum spin Hall (QSH) effect, in the absence of any external magnetic field. Here we review a recent theory which predicts that the QSH state can be realized in HgTe/CdTe semiconductor quantum wells. By varying the thickness of the quantum well, the band structure changes from a normal to an 'inverted' type at a critical thickness d{sub c}. We present an analytical solution of the helical edge states and explicitly demonstrate their topological stability. We also review the recent experimental observation of the QSH state in HgTe/(Hg,Cd)Te quantum wells. We review both the fabrication of the sample and the experimental setup. For thin quantum wells with well width d{sub QW} < 6.3 nm, the insulating regime shows the conventional behavior of vanishingly small conductance at low temperature. However, for thicker quantum wells (d{sub QW} > 6.3 nm), the nominally insulating regime shows a plateau of residual conductance close to 2e{sup 2}/h. The residual conductance is independent of the sample width, indicating that it is caused by edge states. Furthermore, the residual conductance is destroyed by a small external magnetic field. The quantum phase transition at the critical thickness, d{sub c} = 6.3 nm, is also independently determined from the occurrence of a magnetic field induced insulator to metal transition.

  2. Aharonov-Casher and spin Hall effects in mesoscopic ring structures with strong spin-orbit interaction RID A-1315-2011 RID B-3617-2008 

    E-Print Network [OSTI]

    Borunda, M. F.; Liu, Xin; Kovalev, Alexey A.; Liu, Xiong-Jun; Jungwirth, T.; Sinova, Jairo.

    2008-01-01

    - conductor systems. B. Spin Hall effect The proposal of intrinsic spin Hall effect37 and the experi- mental observation of the effect ?both extrinsic and intrinsic?38 has generated a lot of interest in the semiconduc- tor spintronics community. Numerical...

  3. 2D massless QED Hall half-integer conductivity and graphene

    E-Print Network [OSTI]

    A. Pérez Martínez; E. Rodriguez Querts; H. Pérez Rojas; R. Gaitan; S. Rodriguez Romo

    2011-10-13

    Starting from the photon self-energy tensor in a magnetized medium, the 3D complete antisymmetric form of the conductivity tensor is found in the static limit of a fermion system $C$ non-invariant under fermion-antifermion exchange. The massless relativistic 2D fermion limit in QED is derived by using the compactification along the dimension parallel to the magnetic field. In the static limit and at zero temperature the main features of quantum Hall effect (QHE) are obtained: the half-integer QHE and the minimum value proportional to $e^2/h$ for the Hall conductivity . For typical values of graphene the plateaus of the Hall conductivity are also reproduced.

  4. Experimental Observation of the Inverse Spin Hall Effect at Room Temperature

    SciTech Connect (OSTI)

    Liu, Baoli; Shi, Junren; Wang, Wenxin; Zhao, Hongming; Li, Dafang; /Beijing, Inst. Phys.; Zhang, Shoucheng; /Stanford U., Phys. Dept.; Xue, Qikun; Chen, Dongmin; /Beijing, Inst. Phys.

    2010-03-16

    We observe the inverse spin Hall effect in a two-dimensional electron gas confined in Al-GaAs/InGaAs quantum wells. Specifically, they find that an inhomogeneous spin density induced by the optical injection gives rise to an electric current transverse to both the spin polarization and its gradient. The spin Hall conductivity can be inferred from such a measurement through the Einstein relation and the onsager relation, and is found to have the order of magnitude of 0.5(e{sup 2}/h). The observation is made at the room temperature and in samples with macroscopic sizes, suggesting that the inverse spin Hall effects is a robust macroscopic transport phenomenon.

  5. Name Address Use Location Description A 981 Madison Drive F/S Main Campus near Wilson Hall

    E-Print Network [OSTI]

    Arnold, Elizabeth A.

    Name Address Use Location Description A 981 Madison Drive F/S Main Campus near Wilson Hall A2 156 Bluestone Drive F/S Main Campus near Gibbons A3 851 University Boulevard Aux Main Campus Convo B 810 Madison Drive Student Main Campus near Burruss Hall B2 885 University Boulevard Aux Main Campus Convo C 897

  6. Hall-Coefficient for Oriented Tl2ba2cacu2o8+delta Thin-Films 

    E-Print Network [OSTI]

    WANG, PS; WILLIAMS, JC; RATHNAYAKA, KDD; HENNINGS, BD; Naugle, Donald G.; KAISER, AB.

    1993-01-01

    Measurements of the Hall coefficient and resistivity for highly oriented Tl2Ba2CaCu2O8+delta thin films are reported. The temperature dependence of cotTHETA(H), where THETA(H) is the normal-state Hall angle, for a single-phase (2:2:1:2) film sample...

  7. Advances in Fully-Kinetic PIC Simulations of a Near-Vacuum Hall Thruster and Other Plasma Systems

    E-Print Network [OSTI]

    Advances in Fully-Kinetic PIC Simulations of a Near- Vacuum Hall Thruster and Other Plasma Systems;3 Advances in Fully-Kinetic PIC Simulations of a Near- Vacuum Hall Thruster and Other Plasma Systems generation of simulations used the fully-kinetic particle-in-cell (PIC) model. Although much more

  8. Edge states in graphene quantum dots: Fractional quantum Hall effect analogies and differences at zero magnetic field

    E-Print Network [OSTI]

    Yannouleas, Constantine

    quantum Hall effect FQHE in two-dimensional 2D semiconductor heterostruc- tures in the presence of a high in finite 2D electronic systems, such as semiconductor quantum dots QDs under high B, ledEdge states in graphene quantum dots: Fractional quantum Hall effect analogies and differences

  9. arXiv:0907.4122v1[cond-mat.mes-hall]23Jul2009 SPIN CURRENTS IN SEMICONDUCTOR

    E-Print Network [OSTI]

    Nikolic, Branislav K.

    arXiv:0907.4122v1[cond-mat.mes-hall]23Jul2009 SPIN CURRENTS IN SEMICONDUCTOR NANOSTRUCTURES Handbook on Nanoscience and Technology: Frontiers and Advances Eds. A. V. Narlikar and Y. Y. Fu (Oxford-HALL EFFECT? 8 6 SO COUPLINGS IN LOW-DIMENSIONAL SEMICONDUCTORS 10 6.1 Rashba coupling in bulk 2DEG

  10. High-frequency probing diagnostic for Hall current plasma thrusters A. A. Litvak, Y. Raitses, and N. J. Fisch

    E-Print Network [OSTI]

    High-frequency probing diagnostic for Hall current plasma thrusters A. A. Litvak, Y. Raitses, and N Received 6 November 2001; accepted for publication 21 May 20002 High-frequency oscillations 1­100 MHz-matching circuit, was successfully built and calibrated. Through simultaneous high-frequency probing of the Hall

  11. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Waste Behaviour in UBC Food Services Residence Dining Halls

    E-Print Network [OSTI]

    Waste Behaviour in UBC Food Services Residence Dining Halls Group 3, Scenario 3 Brian Cheng, JoannaUBC Social Ecological Economic Development Studies (SEEDS) Student Report Waste Behaviour in UBC Food Services Residence Dining Halls Brian Cheng, Joanna Cheuk Stephanie Lau Shudan Liu Angel Ngan

  12. GEOG 155: LATIN AMERICAN GEOGRAPHY Class: Monday 5PM-7:50PM: Phelps Hall, Room 3505

    E-Print Network [OSTI]

    Lopez-Carr, David

    1 GEOG 155: LATIN AMERICAN GEOGRAPHY Class: Monday 5PM-7:50PM: Phelps Hall, Room 3505 Labs:00-10:50 Ellison Hall Room 2620 El pueblo, a vila, li tenamit: However you call where you live, geography matters these three forces coalesce to shape different geographies of (un)sustainable development throughout

  13. Aging in fragile X syndrome

    E-Print Network [OSTI]

    2010-01-01

    intensified the need for aging studies in FXS. Approximatelywe have surveyed all of the aging patients with FXS that wemedical complications of aging seen in those with FXS. Data

  14. 143 Caldwell Hall Ithaca, NY 14853-2602

    E-Print Network [OSTI]

    Chen, Tsuhan

    mail (original copy) To find contact information for Graduate School staff, visit: http://www.gradschool.cornell.edu/about-us/contacs

  15. Signatures of aging

    SciTech Connect (OSTI)

    Cornwall, J.; Dyson, F.; Garwin, R.; Hammer, D.; Happer, W.; Lewis, N.; Schwitters, R.; Sullivan, J.; Williams, E.

    1998-01-06

    The Department of Energy and its three weapons laboratories (LANL, LLNL, and SNL) have developed a Stockpile Stewardship and Management Program (SSMP) in response to their designated mission of maintaining an effective, i.e. reliable and safe, nuclear deterrent without underground nuclear tests (UGTs). The need to ensure the effectiveness of an aging stockpile presents new challenges of major importance. In this study we review what is known about the aging of critical constituents, particularly the high explosives, polymers, and metals in the enduring stockpile. We discuss data that are required to provide a fuller understanding of aging, and how to obtain that data as a basis for anticipating and addressing potential stockpile problems. Our particular concern is problems that may arise in the short term, i.e. within the next 5 to 10 years, and their implied requirements for preventive maintenance and remanufacture.

  16. Global Hall-MHD simulations of magnetorotational instability in a plasma Couette flow experiment

    SciTech Connect (OSTI)

    Ebrahimi, F.; Lefebvre, B.; Bhattacharjee, A.; Forest, C. B.

    2011-06-15

    Global MHD and Hall-MHD numerical simulations relevant to the Madison plasma Couette flow experiment (MPCX) have been performed using the extended MHD code NIMROD. The MPCX has been constructed to study the magnetorotational instability (MRI) in a plasma. The two-fluid Hall effect, which is relevant to some astrophysical situations such as protostellar disks, is also expected to be important in the MPCX. Here, we first derive the local Hall dispersion relation including viscosity, extending earlier work by Balbus and Terquem [Astrophys. J. 552, 235 (2001)]. The predictions of the local analysis are then compared with nonlocal calculations of linear stability of the MRI for a parameter range relevant to the MPCX. It is found that the MHD stability limit and mode structure are altered by the Hall term, and nonlocal analysis is necessary to obtain quantitatively reliable predictions for MPCX. Two-fluid physics also significantly changes the nonlinear evolution and saturation of the axisymmetric MRI. Both the Reynolds and Maxwell stresses contribute significantly to momentum transport. In the Hall regime, when the magnetic field is parallel to the rotation axis, the Maxwell stress is larger than the Reynolds stress (similar to the MHD regime). However, when the magnetic field is antiparallel to the rotation axis in the Hall regime, the Reynolds stress is much larger than the Maxwell stress. To further study the role of non-axisymmetric modes, we have also carried out fully nonlinear MHD computations. Non-axisymmetric modes play an increasingly important role as the magnetic Reynolds number increases and grow to large amplitudes in a saturated turbulent state.

  17. JOURNAL DE PHYSIQUE Colloque C5, suppliment au no 5, Tome 40, Mai 1979,page C5-46 High-temperature Hall effect in rare earth metals

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -temperature Hall effect in rare earth metals M. V. Vedernikov, V. G. Dvunitkin and N. I. Moreva A. F. Ioffe. Abstract. - Up to date the Hall effect in rare earth metals (REM) was studied rather extensively below at http://dx.doi.org/10.1051/jphyscol:1979518 #12;HIGH-TEMPERATURE HALL EFFECT IN RARE EARTH METALS C5

  18. SNF AGING SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    L.L. Swanson

    2005-04-06

    The purpose of this system description document (SDD) is to establish requirements that drive the design of the spent nuclear fuel (SNF) aging system and associated bases, which will allow the design effort to proceed. This SDD will be revised at strategic points as the design matures. This SDD identifies the requirements and describes the system design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This SDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This SDD is part of an iterative design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD follows the design with regard to the description of the system. The description provided in the SDD reflects the current results of the design process. Throughout this SDD, the term aging cask applies to vertical site-specific casks and to horizontal aging modules. The term overpack is a vertical site-specific cask that contains a dual-purpose canister (DPC) or a disposable canister. Functional and operational requirements applicable to this system were obtained from ''Project Functional and Operational Requirements'' (F&OR) (Curry 2004 [DIRS 170557]). Other requirements that support the design process were taken from documents such as ''Project Design Criteria Document'' (PDC) (BSC 2004 [DES 171599]), ''Site Fire Hazards Analyses'' (BSC 2005 [DIRS 172174]), and ''Nuclear Safety Design Bases for License Application'' (BSC 2005 [DIRS 171512]). The documents address requirements in the ''Project Requirements Document'' (PRD) (Canori and Leitner 2003 [DIRS 166275]). This SDD includes several appendices. Appendix A is a Glossary; Appendix B is a list of key system charts, diagrams, drawings, lists and additional supporting information; and Appendix C is a list of procedures that will be used to operate the system.

  19. Experimental evidences of a large extrinsic spin Hall effect in AuW alloy

    SciTech Connect (OSTI)

    Laczkowski, P.; Rojas-Sánchez, J.-C.

    2014-04-07

    We report an experimental study of a gold-tungsten alloy (7 at. % W concentration in Au host) displaying remarkable properties for spintronics applications using both magneto-transport in lateral spin valve devices and spin-pumping with inverse spin Hall effect experiments. A very large spin Hall angle of about 10% is consistently found using both techniques with the reliable spin diffusion length of 2?nm estimated by the spin sink experiments in the lateral spin valves. With its chemical stability, high resistivity, and small induced damping, this AuW alloy may find applications in the nearest future.

  20. Analytic calculations of trial wave functions of the fractional quantum Hall effect on the sphere

    E-Print Network [OSTI]

    Carmem Lucia de Souza Batista; Dingping Li

    1996-07-24

    We present a framework for the analytic calculations of the hierarchical wave functions and the composite fermion wave functions in the fractional quantum Hall effect on the sphere by using projective coordinates. Then we calculate the overlaps between these two wave functions at various fillings and small numbers of electrons. We find that the overlaps are all most equal to one. This gives a further evidence that two theories of the fractional quantum Hall effect, the hierarchical theory and the composite fermion theory, are physically equivalent.

  1. Effects of ionization distribution on plasma beam focusing characteristics in Hall thrusters

    SciTech Connect (OSTI)

    Ning Zhongxi; Liu Hui; Yu Daren [Plasma Propulsion Laboratory, Harbin Institute of Technology, Harbin 150001 (China); Zhou Zhongxiang [Department of Physics, Harbin Institute of Technology, Harbin 150001 (China)

    2011-11-28

    The relationship between ionization distribution and divergence of plasma beam in a Hall thruster is investigated using spectrum and probe methods. Experimental results indicate that the shift of ionization region towards the exit of channel causes the reduction of accelerating field and the enhancement of electron thermal pressure effect, which result in further deviation of equipotential lines to magnetic field lines and further increase in divergence of plasma beam. It is, therefore, suggested that to put the ionization region deep inside the channel and separate it from the acceleration region at the design, and development stage is helpful to improve the plasma beam focusing characteristics of a Hall thruster.

  2. The Hausdorff dimension of fractal sets and fractional quantum Hall effect

    E-Print Network [OSTI]

    Wellington da Cruz

    2003-05-27

    We consider Farey series of rational numbers in terms of {\\it fractal sets} labeled by the Hausdorff dimension with values defined in the interval 1$ $$ < $$ $$h$$ $$ <$$ $$ 2$ and associated with fractal curves. Our results come from the observation that the fractional quantum Hall effect-FQHE occurs in pairs of {\\it dual topological quantum numbers}, the filling factors. These quantum numbers obey some properties of the Farey series and so we obtain that {\\it the universality classes of the quantum Hall transitions are classified in terms of $h$}. The connection between Number Theory and Physics appears naturally in this context.

  3. Users, technology and space in libraries in the digital age

    E-Print Network [OSTI]

    G-Chandorkar, Tripti (Gore-Chandorkar)

    2005-01-01

    This thesis is a user research study of emerging issues in the use of libraries as public spaces and as information repositories in the digital age. Till recently strong physicality was attached to the library with the ...

  4. AT BIOSPHERE 2 PREPARING FOR AN AGING WORLD

    E-Print Network [OSTI]

    and environmental challenges, it is critical that we look at these issues with innovative eyes. We believe delivery, information technology, biology of aging and policy/politics of aging. Via a series of Ted-talks and extensive discussions, we will explore these issues and identify opportunities to better care for

  5. Nuclear power plant Generic Aging Lessons Learned (GALL). Appendix B

    SciTech Connect (OSTI)

    Kasza, K.E.; Diercks, D.R.; Holland, J.W.; Choi, S.U.

    1996-12-01

    The purpose of this generic aging lessons learned (GALL) review is to provide a systematic review of plant aging information in order to assess materials and component aging issues related to continued operation and license renewal of operating reactors. Literature on mechanical, structural, and thermal-hydraulic components and systems reviewed consisted of 97 Nuclear Plant Aging Research (NPAR) reports, 23 NRC Generic Letters, 154 Information Notices, 29 Licensee Event Reports (LERs), 4 Bulletins, and 9 Nuclear Management and Resources Council Industry Reports (NUMARC IRs) and literature on electrical components and systems reviewed consisted of 66 NPAR reports, 8 NRC Generic Letters, 111 Information Notices, 53 LERs, 1 Bulletin, and 1 NUMARC IR. More than 550 documents were reviewed. The results of these reviews were systematized using a standardized GALL tabular format and standardized definitions of aging-related degradation mechanisms and effects. The tables are included in volume s 1 and 2 of this report. A computerized data base has also been developed for all review tables and can be used to expedite the search for desired information on structures, components, and relevant aging effects. A survey of the GALL tables reveals that all ongoing significant component aging issues are currently being addressed by the regulatory process. However, the aging of what are termed passive components has been highlighted for continued scrutiny. This report consists of Volume 2, which consists of the GALL literature review tables for the NUMARC Industry Reports reviewed for the report.

  6. Aging in community

    E-Print Network [OSTI]

    Fay, Justin (Justin Thomas)

    2008-01-01

    Baby Boomers are on the brink of retirement. According to U.S. Census Bureau projections, the number of people aged 65 and over will more than double in the coming decades, growing from 35 million in 2000 to 72 million in ...

  7. Supercomputing Comes of Age

    E-Print Network [OSTI]

    Feng, Xizhou

    Green Supercomputing Comes of Age Wu-chun Feng, Xizhou Feng, and Rong Ge Energy-efficient (green started exploring green supercomputing as a way to achieve au- tonomic energy and power savings and the Department of Energy, conducted a study that found 97 per- cent of businesses could not compete (or exist

  8. Jeffrey M. Stanton, Ph.D. School of Information Studies, 316 Hinds Hall,

    E-Print Network [OSTI]

    Crowston, Kevin

    /01/07-06/30/09, Developing Faculty to Educate the Next Generation of Library Professionals. Role: Principal Investigator Facility. Role: Consultant; Principal Investigator: Vivian Weil. National Science Foundation, (CNS-0420434 (CNY-SBI). Roles: Project director, funding recipient. National Science Foundation, Research

  9. Equivalence of donor and acceptor fits of temperature dependent Hall carrier density and Hall mobility data: Case of ZnO

    SciTech Connect (OSTI)

    Brochen, Stéphane; Feuillet, Guy; Pernot, Julien

    2014-04-28

    In this work, statistical formulations of the temperature dependence of ionized and neutral impurity concentrations in a semiconductor, needed in the charge balance equation and for carrier scattering calculations, have been developed. These formulations have been used in order to elucidate a confusing situation, appearing when compensating acceptor (donor) levels are located sufficiently close to the conduction (valence) band to be thermally ionized and thereby to emit (capture) an electron to (from) the conduction (valence) band. In this work, the temperature dependent Hall carrier density and Hall mobility data adjustments are performed in an attempt to distinguish the presence of a deep acceptor or a deep donor level, coexisting with a shallower donor level and located near the conduction band. Unfortunately, the present statistical developments, applied to an n-type hydrothermal ZnO sample, lead in both cases to consistent descriptions of experimental Hall carrier density and mobility data and thus do not allow to determine the nature, donor or acceptor, of the deep level. This demonstration shows that the emission of an electron in the conduction band, generally assigned to a (0/+1) donor transition from a donor level cannot be applied systematically and could also be attributed to a (?1/0) donor transition from an acceptor level. More generally, this result can be extended for any semiconductor and also for deep donor levels located close to the valence band (acceptor transition)

  10. Aging in Utah: Avoid Crisis

    E-Print Network [OSTI]

    Tipple, Brett

    Aging in Utah: Avoid Crisis Maximize Opportunity UTAH COMMISSION ON AGING Annual Report 2010-2011 #12;Page 1Utah Commission on Aging 2010-2011 Interim Report The Commission's statutory purpose is to: a. increase public and government understanding of the current and future needs of the state's aging

  11. Kamin Whitehouse 501 Rice Hall Charlottesville, VA 22904-4740

    E-Print Network [OSTI]

    Whitehouse, Kamin

    Workshop on Energy-Efficiency in Buildings (BuildSys) Advisory Board Member 2007 -- present Fruition on Energy-Efficiency in Buildings (BuildSys) TPC Co-Chair 2012 ACM/IEEE Information Processing in Sensor

  12. Cognitive Principles for Information Management: The Principles of Mnemonic Associative Knowledge

    E-Print Network [OSTI]

    Rensink, Ronald A.

    design more sophisticated information-management systems still comprehensible to our fallible ``stone-age

  13. Global warming and hyperbolic discounting 207 Giannini Hall, University of California, Berkeley, CA 94720, USA

    E-Print Network [OSTI]

    Karp, Larry S.

    Global warming and hyperbolic discounting Larry Karp 207 Giannini Hall, University of California-lived environmental problems such as global warming has two disadvantages: the prescribed policy is sensitive illustrates the role of hyperbolic discounting in a model of global warming. D 2004 Elsevier B.V. All rights

  14. Logistic Model Trees Niels Landwehr 1,2 , Mark Hall 2 , and Eibe Frank 2

    E-Print Network [OSTI]

    Frank, Eibe

    Logistic Model Trees Niels Landwehr 1,2 , Mark Hall 2 , and Eibe Frank 2 1 Department of Computer problems, using logistic regression instead of linear regression. We use a stagewise fitting process to construct the logistic regression models that can select relevant attributes in the data in a natural way

  15. Paul Edward Smith Department of Biochemistry, 36 Willard Hall, Kansas State University

    E-Print Network [OSTI]

    Smith, Paul E.

    . Protein Modeling and Engineering BIOCH 890 - Fall 98. Biochemistry I BIOCH 755 - Fall 98. Sophomore - M.Sc., Chemical Engineering Li Zheng - Ph.D., Biochemistry Maria Zavodszky - Ph.D., BiochemistryPaul Edward Smith Department of Biochemistry, 36 Willard Hall, Kansas State University Manhattan

  16. The Mathematics of Musical Instruments Rachel W. Hall and Kresimir Josic

    E-Print Network [OSTI]

    Josic, Kresimir

    The Mathematics of Musical Instruments Rachel W. Hall and Kresimir Josi´c August 29, 2000 Abstract. In particular, we consider the physical properties of a Norwegian folk instrument called the willow flute and are crucial in the design of keyboard instruments. The willow flute example also provides a nice introduction

  17. International Workshop on MFE Roadmapping in the ITER Era Princeton University, McDonnell Hall

    E-Print Network [OSTI]

    International Workshop on MFE Roadmapping in the ITER Era Princeton University, McDonnell Hall Princeton, NJ, U.S.A. 7 -10 September 2011 Roadmap Agenda r12 20110910.doc Agenda Workshop Topics · Perspectives on Demo and the Roadmap to Demo · Technology: Basis, Gaps, Risks, and Facility Needs · Physics

  18. Scaling of forced magnetic reconnection in the Hall-magnetohydrodynamical Taylor problem with arbitrary guide field

    E-Print Network [OSTI]

    Fitzpatrick, Richard

    , 052902 (2006); 10.1063/1.2200630 Solar coronal heating by forced magnetic reconnection: Multiple accelerate the rate of magnetic reconnection, relative to the well-known Sweet­Parker rate. In the nonlinearScaling of forced magnetic reconnection in the Hall-magnetohydrodynamical Taylor problem

  19. Discharge Oscillations in a Permanent Magnet Cylindrical Hall-Effect Thruster

    E-Print Network [OSTI]

    circuit leaves very little room for magnetic pole pieces and heat shields. Propulsion Research EngineerDischarge Oscillations in a Permanent Magnet Cylindrical Hall-Effect Thruster IEPC-2009 and complexity as the voltage is increased, and are reduced in severity with increasing flow rate. The `breathing

  20. Genetic susceptibility to radiation E.J. Hall *, D.J. Brenner, B. Worgul, L. Smilenov

    E-Print Network [OSTI]

    Brenner, David Jonathan

    they might receive a large dose of radiation because of the possible severe clinical re- sponse. Second of the dose­response relationship, thereby rendering a linear extrapolation from high to low doses invalidGenetic susceptibility to radiation E.J. Hall *, D.J. Brenner, B. Worgul, L. Smilenov Columbia

  1. Matt R. Bohm, Ph.D. Assistant Professor 212 Sackett Hall

    E-Print Network [OSTI]

    , UMR Solar Car Team, Race Strategist Related Refereed Publications: 1. Bohm, M., Haapala, K., Poppa, KMatt R. Bohm, Ph.D. Assistant Professor 212 Sackett Hall Department of Mechanical Engineering University of Louisville J.B. Speed School of Engineering Louisville, KY 40292 matt

  2. arXiv:cond-mat/0411737v223Nov2005 Quantum Spin Hall Effect in Graphene

    E-Print Network [OSTI]

    Cobden, David

    reported progress in the preparation of single layer graphene films. These films exhibit the expectedarXiv:cond-mat/0411737v223Nov2005 Quantum Spin Hall Effect in Graphene C.L. Kane and E.J. Mele Dept orbit interactions on the low energy electronic structure of a sin- gle plane of graphene. We find

  3. Quantum Spin Hall Effect in Graphene C. L. Kane and E. J. Mele

    E-Print Network [OSTI]

    Kane, Charles

    reported progress in the preparation of single layer graphene films. These films exhibit the expectedQuantum Spin Hall Effect in Graphene C. L. Kane and E. J. Mele Dept. of Physics and Astronomy of a single plane of graphene. We find that in an experimentally accessible low temperature regime

  4. Low-frequency model of breathing oscillations in Hall discharges Serge Barral*

    E-Print Network [OSTI]

    Carlos III de Madrid, Universidad

    Low-frequency model of breathing oscillations in Hall discharges Serge Barral* Institute of Plasma resolved. The ability of such a low-frequency model to reproduce with excellent accuracy the breathing mode. Arguably the most ubiquitous among them are low-frequency LF plasma oscillations observable in the 10­30 k

  5. Manifestation of the spin Hall effect through charge-transport in the mesoscopic regime 

    E-Print Network [OSTI]

    Hankiewicz, EM; Molenkamp, LW; Jungwirth, T.; Sinova, Jairo.

    2004-01-01

    We study theoretically the manifestation of the spin Hall effect in a two-dimensional electronic system with Rashba spin-orbit coupling via dc-transport measurements in realistic mesoscopic H-shape structures. The Landauer-Buttiker formalism is used...

  6. The Graduate School 5775 Stodder Hall, Room 42 Orono, Maine 04469-5775

    E-Print Network [OSTI]

    Thomas, Andrew

    The Graduate School 5775 Stodder Hall, Room 42 Orono, Maine 04469-5775 Tel: 207-581-3219 Fax: 207 wishes to enroll for a semester or academic year in the Graduate School at The University of Maine the form below and return it to The University of Maine. Note: International applicants must document

  7. Conservation became a team sport in University of Minnesota residence halls during spring semester 2011,

    E-Print Network [OSTI]

    categories: (a.) greatest percentage decrease in electrical usage, (b.) least waste per capita and (c.) most.2 percent rate of recycling and 8.28 pounds of waste per capita, and third in the energy reduction category and externally. Cost Savings If every residence hall could operate as efficiently as the top Conservation Madness

  8. UNIVERSITY OF NORTH CAROLINA WILMINGTON 1 Office of the Registrar, James Hall--First Floor

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    UNIVERSITY OF NORTH CAROLINA WILMINGTON 1 Office of the Registrar, James Hall--First Floor Office/or for the past 12 months. 4. Evidence you are a registered voter in North Carolina. 5. Evidence of motor vehicle ownership - registration card in North Carolina. 6. Copy of North Carolina Driver's License. 7. Evidence

  9. UNIVERSITY OF NORTH CAROLINA WILMINGTON1 Office of the Registrar, James Hall--First Floor

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    UNIVERSITY OF NORTH CAROLINA WILMINGTON1 Office of the Registrar, James Hall--First Floor Office (Domiciliary) of North Carolina for Tuition Purposes. 1. Documents of residence for the past 12 months (i are a registered voter in North Carolina. 5. Evidence of motor vehicle ownership - registration card in North

  10. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Allard Hall LCA Study

    E-Print Network [OSTI]

    LCA Study CIVL 498C November 18, 2013 1065 1529 University of British Columbia Disclaimer: "UBC SEEDS ­ the UBC LCA Project ­ which aims to support the development of the field of life cycle assessment (LCA at rob.sianchuk@gmail.com #12;Allard Hall LCA Study Emma Brown CIVL 498C November 18, 2013 #12

  11. High performance computing and the simplex method Julian Hall, Qi Huangfu and Edmund Smith

    E-Print Network [OSTI]

    Hall, Julian

    High performance computing and the simplex method Julian Hall, Qi Huangfu and Edmund Smith School of Mathematics University of Edinburgh 12th April 2011 High performance computing and the simplex method #12;The... ... but methods for all three depend on it! High performance computing and the simplex method 1 #12;Overview · LP

  12. Structure transitions induced by the Hall term in homogeneous and isotropic magnetohydrodynamic turbulence

    SciTech Connect (OSTI)

    Miura, H., E-mail: miura.hideaki@nifs.ac.jp [Department of Helical Plasma Research, National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan); Araki, K. [Faculty of Engineering, Okayama University of Science, 1-1 Ridai-cho, Okayama 700-0005 (Japan)

    2014-07-15

    Hall effects on local structures in homogeneous, isotropic, and incompressible magnetohydrodynamic turbulence are studied numerically. The transition of vortices from sheet-like to tubular structures induced by the Hall term is found, while the kinetic energy spectrum does not distinguish the two types of structures. It is shown by the use of the sharp low-pass filter that the transition occurs not only in the scales smaller than the ion skin depth but also in a larger scale. The transition is related with the forward energy transfer in the spectral space. Analyses by the use of the sharp low-pass filter show that the nonlinear energy transfer associated with the Hall term is dominated by the forward transfer and relatively local in the wave number space. A projection of the simulation data to a Smagorinsky-type sub-grid-scale model shows that the high wave number component of the Hall term may possibly be replaced by the model effectively.

  13. A stream's role in watershed nutrient export Robert O. Hall, Jr.*

    E-Print Network [OSTI]

    Hall Jr., Robert O.

    A stream's role in watershed nutrient export Robert O. Hall, Jr.* Department of Zoology of research is that element export can dramatically increase after forest removal; e.g., ni- trate of the water- shed, and any modifications to element export by the stream itself are minimal relative

  14. Analysis of Impacts of a Clean Energy Standard as requested by Chairman Hall

    Reports and Publications (EIA)

    2011-01-01

    This report responds to a request from Chairman Ralph M. Hall for an analysis of the impacts of a Clean Energy Standard (CES). The request, as outlined in the letter included in Appendix A, sets out specific assumptions and scenarios for the study.

  15. Accuracy improvements in a Hall thruster PIC/fluid Robert Santos

    E-Print Network [OSTI]

    Carlos III de Madrid, Universidad

    Accuracy improvements in a Hall thruster PIC/fluid code Robert Santos and Eduardo Ahedo Universidad code that consists of a particle-in-cell (PIC) subcode12 for the heavy species of the plasma, an anisotropic fluid subcode for the electrons, and plasma quasineu- trality. The PIC subcode models the heavy

  16. Fractional quantum Hall effect and insulating phase of Dirac electrons in graphene

    E-Print Network [OSTI]

    Andrei, Eva Y.

    semiconductor analogue3 . As a third distinguishing feature of graphene, it has been conjectured of graphene in terms of a two-dimensional (2D) zero-bandgap semiconductor with low energy excitations repreLETTERS Fractional quantum Hall effect and insulating phase of Dirac electrons in graphene Xu Du1

  17. Gapless layered three-dimensional fractional quantum Hall states Michael Levin1

    E-Print Network [OSTI]

    2D , anisotropic three-dimensional 3D electron systems--such as multilayer systems in a perpen of experiments on 3D semiconductor multilayers have explored the behavior of stacked integer quantum Hall states effect in graphene,20­23 and future pros- pects for graphene multilayers, provides further impetus

  18. Coulomb Oscillations and Hall Effect in Quasi-2D Graphite Quantum Dots

    E-Print Network [OSTI]

    McEuen, Paul L.

    Coulomb Oscillations and Hall Effect in Quasi-2D Graphite Quantum Dots J. Scott Bunch, Yuval Yaish-temperature electrical transport measurements on gated, quasi-2D graphite quantum dots. In devices with low contact of graphene, a zero band gap semiconductor with two linearly dispersing bands that touch at the corners

  19. WIPP Employee Inducted Into Mine Rescue Hall of Fame- WIPP Teams Recognized at National Competition

    Broader source: Energy.gov [DOE]

    CARLSBAD, N.M., August 2, 2013 - Long-time Waste Isolation Pilot Plant (WIPP) employee Gary Kessler was inducted into the Metal/Non-Metal National Mine Rescue Hall of Fame on Aug. 1, 2013 at the biennial mine rescue competition in Reno, Nevada.

  20. Noncontact semiconductor wafer characterization with the terahertz Hall D. M. Mittleman,a)

    E-Print Network [OSTI]

    Natelson, Douglas

    of Physics. S0003-6951 97 01427-7 Doped semiconductors are frequently characterized by two material properties and quality. They also determine many of the electrical and optical properties of the material. NNoncontact semiconductor wafer characterization with the terahertz Hall effect D. M. Mittleman,a) J

  1. Wednesday, February 18, 12:00 PM Baxter Lecture Hall Auditorium

    E-Print Network [OSTI]

    Wednesday, February 18, 12:00 PM Baxter Lecture Hall Auditorium Chen-Huang Sustainable Energy in Stanford's Precourt Institute on Energy and Woods Institute on Environment. Richter discovered a new kind by the U.S. Atomic Energy Commission for which he was awarded the Nobel Prize in Physics (1976) and the E

  2. TL173L, TL173C LINEAR HALL-EFFECT SENSORS

    E-Print Network [OSTI]

    Ida, Nathan

    Sheet Page 1 of 3http://www.ionpool.net/arcade/irobot/tl173l.html #12;Recommended operating conditions Linear Hall-Effect Sensor Data Sheet Page 2 of 3http://www.ionpool.net/arcade/irobot/tl173l.html #12;last://www.ionpool.net/arcade/irobot/tl173l.html #12;

  3. The Effect of Magnetic Field on the Performance of Low-Power Cylindrical Hall Thrusters

    E-Print Network [OSTI]

    The Effect of Magnetic Field on the Performance of Low-Power Cylindrical Hall Thrusters IEPC-2005-099 Presented at the 29th International Electric Propulsion Conference, Princeton University, October 31 for scaling down. The effect of the magnetic field on the discharge characteristics and efficiency of the low

  4. Control of the electric-field profile in the Hall thruster A. Fruchtman

    E-Print Network [OSTI]

    propulsion for space vehicles utilizes electric and magnetic fields to accelerate a propellant to a much higher velocity than chemical propulsion does, and, as a re- sult, the required propellant mass is reduced. Among electric propulsion devices Hall thrusters offer much higher thrust density than

  5. Internal plasma potential measurements of a Hall thruster using plasma lens focusing

    SciTech Connect (OSTI)

    Linnell, Jesse A.; Gallimore, Alec D. [Plasmadynamics and Electric Propulsion Laboratory, Department of Aerospace Engineering, University of Michigan, 1919 Green Road, Room B107, Ann Arbor, Michigan 48109 (United States)

    2006-10-15

    Magnetic field topology has been found to be a central design concern for high-efficiency Hall thrusters. For future improvements in Hall thruster design, it is necessary to better understand the effects that magnetic field topology has on the internal plasma structure. The Plasmadynamics and Electric Propulsion Laboratory's High-speed Axial Reciprocating Probe system is used in conjunction with a floating emissive probe to map the internal plasma potential structure of the NASA-173Mv1 Hall thruster [R. R. Hofer, R. S. Jankovsky, and A. D. Gallimore, J. Propul. Power 22, 721 (2006); 22, 732 (2006)]. Measurements are taken at 300 and 500 V with a xenon propellant. Electron temperature and electric field are also measured and reported. The acceleration zone and equipotential lines are found to be strongly linked to the magnetic field lines. Moreover, in some cases the ions are accelerated strongly toward the center of the discharge channel. The agreement between magnetic field lines and equipotential lines is best for high-voltage operation. These results have strong implications on the performance and lifetime optimization of Hall thrusters.

  6. Experimental and theoretical studies of cylindrical Hall thrustersa... Artem Smirnov,b

    E-Print Network [OSTI]

    The Hall thruster is a mature electric propulsion device that holds considerable promise in terms for further optimization of this means for low-power space propulsion are suggested. Substantial flexibility in the magnetic field configuration of the CHT is the key tool in achieving the high-efficiency operation. © 2007

  7. HallPetch Behavior in Ultra-Fine-Grained AISI 301LN Stainless Steel

    E-Print Network [OSTI]

    Ferreira, Paulo J.

    strength of conventional fully annealed AISI 301LN stainless steels. An analysis of the relationshipHall­Petch Behavior in Ultra-Fine-Grained AISI 301LN Stainless Steel S. RAJASEKHARA, P.J. FERREIRA, L.P. KARJALAINEN, and A. KYRO¨ LA¨ INEN An ultra-fine-grained AISI 301LN austenitic stainless steel

  8. Genetic Paint: A Search for Salient Paintings J. P. Collomosse and P. M. Hall

    E-Print Network [OSTI]

    Collomosse, John

    Genetic Paint: A Search for Salient Paintings J. P. Collomosse and P. M. Hall Department painterly style. We argue that figurative artworks are salience maps, and develop a novel painting algorithm that uses a genetic algorithm (GA) to search the space of possible paintings for a given image, so

  9. CITY AND REGIONAL PLANNING Cornell University 106 West Sibley Hall Ithaca, New York 14853

    E-Print Network [OSTI]

    Walter, M.Todd

    CITY AND REGIONAL PLANNING Cornell University · 106 West Sibley Hall · Ithaca, New York 14853 Tel@cornell.edu)isDirectoroftheNewYorkStateWaterResourcesInstituteatCornell University. BrianG.Rahm(bgr4, New York 14853 Tel: (607) 255-4331 · Fax: (607) 255-1971 · www.crp.cornell.edu Whatistheissue? In2009

  10. Pacific Northwest Demand Response Project Lee Hall, BPA Smart Grid Program Manager

    E-Print Network [OSTI]

    Pacific Northwest Demand Response Project Lee Hall, BPA Smart Grid Program Manager February 14 utilities to invest in DR Regional situational analysis ­ issues to address #12;Nationally ­ Demand ResponseSource: FERC Demand Response & Advanced Metering Report, February 2011 Peak DR 65,000 MW 1,062 MW Peak DR

  11. American Institute of Aeronautics and Astronautics Design and Operation of Hall Thruster with Segmented Electrodes1

    E-Print Network [OSTI]

    American Institute of Aeronautics and Astronautics 1 Design and Operation of Hall Thruster Copyright @ 1998 by the American Institute of Aeronautics and Astronautics Inc. All rights reserved 1 discharge between Anode Cathode B E #12;American Institute of Aeronautics and Astronautics 2 the anode

  12. The impact of Hall physics on magnetized high energy density plasma jets

    SciTech Connect (OSTI)

    Gourdain, P.-A.; Seyler, C. E.; Atoyan, L.; Greenly, J. B.; Hammer, D. A.; Kusse, B. R.; Pikuz, S. A.; Potter, W. M.; Schrafel, P. C.; Shelkovenko, T. A.

    2014-05-15

    Hall physics is often neglected in high energy density plasma jets due to the relatively high electron density of such jets (n{sub e}???10{sup 19}?cm{sup ?3}). However, the vacuum region surrounding the jet has much lower densities and is dominated by Hall electric field. This electric field redirects plasma flows towards or away from the axis, depending on the radial current direction. A resulting change in the jet density has been observed experimentally. Furthermore, if an axial field is applied on the jet, the Hall effect is enhanced and ignoring it leads to serious discrepancies between experimental results and numerical simulations. By combining high currents (?1 MA) and magnetic field helicity (15° angle) in a pulsed power generator such as COBRA, plasma jets can be magnetized with a 10?T axial field. The resulting field enhances the impact of the Hall effect by altering the density profile of current-free plasma jets and the stability of current-carrying plasma jets (e.g., Z-pinches)

  13. The Strategy and Tactics of Information Warfare

    E-Print Network [OSTI]

    Bishop, Matt

    ' technologies. Just as the nuclear age elevated the logic of deterrence over destruction, in the information age, and the development of extended-range submarines and torpedoes. The wireless was also a means of providing greatly

  14. Navigational strategy switching in ageing 

    E-Print Network [OSTI]

    Harris, Mathew Alan

    2014-11-28

    With advancing age, many cognitive faculties deteriorate, and navigation abilities may be among those most affected. The majority of previous work investigating navigation impairments in ageing has focused on allocentric ...

  15. Aging and the labor market

    E-Print Network [OSTI]

    Lahey, Joanna

    2005-01-01

    This thesis is a collection of three essays analyzing the interplay between aging and the labor market. The first chapter demonstrates that differential treatment by age exists in labor markets and explores different ...

  16. References: Information.

    E-Print Network [OSTI]

    Brass, Stefan

    Handbook. Clarendon Press, 1990. . Henning Lobin: Informationsmodellierung in XML und SGML. Springer­Verlag, 1999. . C. M. Sperberg­McQueen and Lou Burnard (Eds.): A Gentle Introduction to SGML. [http Specification. Prentice Hall, 1999. . Tim Bray, Jean Paoli, C.M. Sperberg­McQueen: Extensible Markup Language

  17. Evolution of ageing since Darwin

    E-Print Network [OSTI]

    Rose, Michael R; Burke, Molly K; Shahrestani, Parvin; Mueller, Laurence D

    2008-01-01

    evolution of aging. World Scientific Publishing, Singapore.M. Matos), pp. 237–448. World Scientific Publishing, Sin-

  18. Stanley Hall Safety Committee Agenda 11:00 am 12:00 noon, Wednesday, March 10, 2010

    E-Print Network [OSTI]

    Doudna, Jennifer A.

    Stanley Hall [Safety Committee and DSC Comments in Green] 1. Earthquakes in Haiti and Chile All Popcorn smoke from microwave; February ­ Tea maker steam in smoke detector Liquid Nitrogen Fill

  19. Zero-Field Dissipationless Chiral Edge Transport and the Nature of Dissipation in the Quantum Anomalous Hall State

    E-Print Network [OSTI]

    Zhao, Weiwei

    The quantum anomalous Hall (QAH) effect is predicted to possess, at a zero magnetic field, chiral edge channels that conduct a spin polarized current without dissipation. While edge channels have been observed in previous ...

  20. accoladesCelebratingStudentandFacultyExcellenceintheCollegeofLiberalArts Thursday,April17,2014-IronsRecitalHall

    E-Print Network [OSTI]

    Huang, Haiying

    ,2014-IronsRecitalHall FACULTY AWARDS Outstanding Teaching Award Tenured: Thomas Christie (COMM) Ray Elliott Faculty Fellow Sarah Rose (HIST) Research/Creative Activity Endowment Awards Thomas Adam (HIST) Jinny Choi

  1. Design and characterization of a low cost dual differential proving ring force sensor utilizing Hall-effect sensors

    E-Print Network [OSTI]

    Rivest, Christopher W. (Christopher Warren)

    2006-01-01

    A novel dual differential hall-effect based proving ring force sensor has been designed, manufactured, and tested. Strain gauge based force sensors are among the most common methods of measuring static and dynamic forces, ...

  2. Improvements to a fully kinetic Hall thruster simulation code and characterization of the cylindrical cusped field thruster

    E-Print Network [OSTI]

    Boulanger, Louis, S.M. Massachusetts Institute of Technology

    2014-01-01

    This thesis presents an effort towards a better understanding of the operation of miniaturized cylindrical Hall thrusters. This class of space propulsion devices has come under attention since the 1990s as a possible ...

  3. Advances in fully-kinetic PIC simulations of near-vacuum Hall thruster and other plasma systems

    E-Print Network [OSTI]

    Fox, Justin M., 1981-

    2007-01-01

    In recent years, many groups have numerically modeled the near-anode region of a Hall thruster in attempts to better understand the associated physics of thruster operation. Originally, simulations assumed a continuum ...

  4. 2014/15 Meal Plan Membership Contract Duration of Marquis Hall Meals within your Meal Plan Membership

    E-Print Network [OSTI]

    Saskatchewan, University of

    -transferable. It is valid for and usable only by the person to whom the plan has been sold been calculated in the cost of meals at Marquis Hall, GST on the Cash Card

  5. Generalised transfinite Turing machines and strategies for games. P.D.Welch, University of Bristol. Chicheley Hall 2012

    E-Print Network [OSTI]

    Welch, Philip

    . Chicheley Hall 2012 #12;· Theme: Connections between inductive operators, discrete transfinite machine models of computation, and determinacy. #12;· Theme: Connections between inductive operators, discrete: ITTM description1 · Allow a standard Turing machine to run transfinitely using one of the usual

  6. Investigation and Analysis of the Indoor Air Environment of a Large-scale Art Exhibition Hall in Beijing 

    E-Print Network [OSTI]

    Hao, X.; Cao, G.; Wang, Y.; Wang, J.

    2006-01-01

    Adopting the method of locale measurement and subjective appraisal, this paper presents a synthesized investigation and analysis of both the indoor thermal and humid indices and the air quality of a specific exhibition hall in Beijing. Indoor air...

  7. GoldLink Finance Account Request ETSU Office of Information Technology

    E-Print Network [OSTI]

    Karsai, Istvan

    GoldLink Finance Account Request Form ETSU Office of Information Technology 424 Roy Nicks Hall, Box 70728 Johnson City, Tennessee 37614 (423) 439-4648 · oithelp@etsu.edu This section for use by the Office _______________________________________________________________________________________ [ last ] [ first ] [ middle ] ETSU Domain Name ____________________@etsu.edu School / College

  8. The Age of the Universe

    E-Print Network [OSTI]

    Raul Jimenez

    1997-01-29

    In this article I review the main methods for determining the age of the Universe. I describe how to determine the age of the oldest known systems at z=0, the system of galactic globular clusters, using different techniques. I also describe how to date the Universe using the decay of radioactive elements (Cosmochronology). Finally, I focus on how to determine the age of the Universe at different redshifts and specially the age of radio-quiet galaxies at high redshift. I finish by arguing that the most probable age for the Universe is $14 \\pm 2$ Gyr.

  9. Minimum energy states of the cylindrical plasma pinch in single-fluid and Hall magnetohydrodynamics

    SciTech Connect (OSTI)

    Khalzov, I. V.; Schnack, D. D.; Mirnov, V. V.; Ebrahimi, F.

    2012-01-15

    Relaxed states of a plasma column are found analytically in single-fluid and Hall magnetohydrodynamics (MHD). We perform complete minimization of the energy with constraints imposed by invariants inherent in the corresponding models. It is shown that the relaxed state in Hall MHD is a force-free magnetic field with uniform axial flow and/or rigid azimuthal rotation. In contrast, the relaxed states in single-fluid MHD are more complex due to the coupling between velocity and magnetic field. Cylindrically and helically symmetric relaxed states are considered for both models. Helical states may be time dependent and analogous to helical waves, propagating on a cylindrically symmetric background. Application of our results to reversed-field pinches (RFP) is discussed. The radial profile of the parallel momentum predicted by the single-fluid MHD relaxation theory is shown to be in reasonable agreement with experimental observation from the Madison symmetric torus RFP experiment.

  10. Sheath oscillation characteristics and effect on near-wall conduction in a krypton Hall thruster

    SciTech Connect (OSTI)

    Zhang, Fengkui Kong, Lingyi; Li, Chenliang; Yang, Haiwei; Li, Wei

    2014-11-15

    Despite its affordability, the krypton Hall-effect thruster in applications always had problems in regard to performance. The reason for this degradation is studied from the perspective of the near-wall conductivity of electrons. Using the particle-in-cell method, the sheath oscillation characteristics and its effect on near-wall conduction are compared in the krypton and xenon Hall-effect thrusters both with wall material composed of BNSiO{sub 2}. Comparing these two thrusters, the sheath in the krypton-plasma thruster will oscillate at low electron temperatures. The near-wall conduction current is only produced by collisions between electrons and wall, thereby causing a deficiency in the channel current. The sheath displays spatial oscillations only at high electron temperature; electrons are then reflected to produce the non-oscillation conduction current needed for the krypton-plasma thruster. However, it is accompanied with intensified oscillations.

  11. Variational principle for linear stability of flowing plasmas in Hall magnetohydrodynamics

    SciTech Connect (OSTI)

    Hirota, M.; Yoshida, Z.; Hameiri, E.

    2006-02-15

    Linear stability of equilibrium states with flow is studied by means of the variational principle in Hall magnetohydrodynamics (MHD). The Lagrangian representation of the linearized Hall MHD equation is performed by considering special perturbations that preserves some constants of motion (the Casimir invariants). The resultant equation has a Hamiltonian structure which enables the variational principle. There is however some difficulties in showing the positive definiteness of the quadratic form in the presence of flow. The dynamically accessible variation is a more restricted class of perturbations which, by definition, preserves all the Casimir invariants. For such variations, the quadratic form (the second variation of Hamiltonian) can be positive definite. Some conditions for stability are derived by applying this variational principle to the double Beltrami equilibrium.

  12. Heat transfer in ice hockey halls: measurements, energy analysis and analytical ice pad temperature profile

    E-Print Network [OSTI]

    Ferrantelli, Andrea

    2015-01-01

    We consider heat transfer processes in an ice hockey hall, during operating conditions, with a bottom-up approach based upon on-site measurements. Detailed temperature data of both the ice pad and the air above the ice rink are used for a heat balance calculation in the steady-state regime, which quantifies the impact of each single heat source. We solve the heat equation in the ice slab in transient regime, and obtain a general analytical formula for the temperature profile. This solution is then applied to the resurfacing process by using our measurements as (time-dependent) boundary conditions (b.c.), and compared to an analogous numerical computation with good agreement. Our analytical formula is given with implicit initial condition and b.c., therefore it can be used not only in ice halls, but in a large variety of engineering applications.

  13. Realization of tunable spin-dependent splitting in intrinsic photonic spin Hall effect

    SciTech Connect (OSTI)

    Ling, Xiaohui [SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060 (China); Laboratory for spin photonics, College of Physics and Microelectronic Science, Hunan University, Changsha 410082 (China); Department of Physics and Electronic Information Science, Hengyang Normal University, Hengyang 421002 (China); Yi, Xunong [SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060 (China); Zhou, Xinxing; Liu, Yachao; Shu, Weixing; Wen, Shuangchun [Laboratory for spin photonics, College of Physics and Microelectronic Science, Hunan University, Changsha 410082 (China); Luo, Hailu, E-mail: hailuluo@hnu.edu.cn [SZU-NUS Collaborative Innovation Center for Optoelectronic Science and Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060 (China); Laboratory for spin photonics, College of Physics and Microelectronic Science, Hunan University, Changsha 410082 (China)

    2014-10-13

    We report the realization of tunable spin-dependent splitting in intrinsic photonic spin Hall effect. By breaking the rotational symmetry of a cylindrical vector beam, the intrinsic vortex phases that the two spin components of the vector beam carries, which is similar to the geometric Pancharatnam-Berry phase, are no longer continuous in the azimuthal direction, and leads to observation of spin accumulation at the opposite edge of the beam. Due to the inherent nature of the phase and independency of light-matter interaction, the observed photonic spin Hall effect is intrinsic. Modulating the topological charge of the vector beam, the spin-dependent splitting can be enhanced and the direction of spin accumulation is switchable. Our findings may provide a possible route for generation and manipulation of spin-polarized photons, and enables spin-based photonics applications.

  14. Heat transfer in ice hockey halls: measurements, energy analysis and analytical ice pad temperature profile

    E-Print Network [OSTI]

    Andrea Ferrantelli; Klaus Viljanen

    2015-06-30

    We consider heat transfer processes in an ice hockey hall, during operating conditions, with a bottom-up approach based upon on-site measurements. Detailed temperature data of both the ice pad and the air above the ice rink are used for a heat balance calculation in the steady-state regime, which quantifies the impact of each single heat source. We solve the heat equation in the ice slab in transient regime, and obtain a general analytical formula for the temperature profile. This solution is then applied to the resurfacing process by using our measurements as (time-dependent) boundary conditions (b.c.), and compared to an analogous numerical computation with good agreement. Our analytical formula is given with implicit initial condition and b.c., therefore it can be used not only in ice halls, but in a large variety of engineering applications.

  15. Haldane Quantum Hall Effect for Light in a Dynamically Modulated Array of Resonators

    E-Print Network [OSTI]

    Minkov, Momchil

    2015-01-01

    Topological insulators have attracted abundant attention for a variety of reasons -- notably, the possibility for lossless energy transport through edge states `protected' against disorder. Topological effects like the Quantum Hall state can be induced through a gauge field, which is however hard to create in practice, especially for charge-neutral particles. One way to induce an effective gauge potential is through a dynamic, time-periodic modulation of the lattice confining such particles. In this way, the Haldane Quantum Hall effect was recently observed in a cold atom system. Here, we show how this same effect can be induced for light confined to a lattice of identical optical resonators, using an on-site modulation of the resonant frequencies. We further demonstrate the existence of one-directional edge states immune to back-scattering losses, and discuss the possibilities for a practical implementation, which would enable slow-light devices of unprecedented quality.

  16. Haldane Quantum Hall Effect for Light in a Dynamically Modulated Array of Resonators

    E-Print Network [OSTI]

    Momchil Minkov; Vincenzo Savona

    2015-07-16

    Topological insulators have attracted abundant attention for a variety of reasons -- notably, the possibility for lossless energy transport through edge states `protected' against disorder. Topological effects like the Quantum Hall state can be induced through a gauge field, which is however hard to create in practice, especially for charge-neutral particles. One way to induce an effective gauge potential is through a dynamic, time-periodic modulation of the lattice confining such particles. In this way, the Haldane Quantum Hall effect was recently observed in a cold atom system. Here, we show how this same effect can be induced for light confined to a lattice of identical optical resonators, using an on-site modulation of the resonant frequencies. We further demonstrate the existence of one-directional edge states immune to back-scattering losses, and discuss the possibilities for a practical implementation, which would enable slow-light devices of unprecedented quality.

  17. Magnetic shielding of the channel walls in a Hall plasma accelerator

    SciTech Connect (OSTI)

    Mikellides, Ioannis G.; Katz, Ira; Hofer, Richard R.; Goebel, Dan M. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States); Grys, Kristi de; Mathers, Alex [Aerojet, Redmond, Washington 98052 (United States)

    2011-03-15

    In a qualification life test of a Hall thruster it was found that the erosion of the acceleration channel practically stopped after {approx}5600 h. Numerical simulations using a two-dimensional axisymmetric plasma solver with a magnetic field-aligned mesh reveal that when the channel receded from its early-in-life to its steady-state configuration the following changes occurred near the wall: (1) reduction of the electric field parallel to the wall that prohibited ions from acquiring significant impact kinetic energy before entering the sheath, (2) reduction of the potential fall in the sheath that further diminished the total energy ions gained before striking the material, and (3) reduction of the ion number density that decreased the flux of ions to the wall. All these changes, found to have been induced by the magnetic field, constituted collectively an effective shielding of the walls from any significant ion bombardment. Thus, we term this process in Hall thrusters 'magnetic shielding'.

  18. A spin-filter made of quantum anomalous Hall insulator nanowires

    SciTech Connect (OSTI)

    Wu, Jiansheng

    2014-07-28

    Topological end states (TES) in quantum anomalous Hall insulator nanowires can induce tunneling within the gap. Such TES are spin polarized, thus the induced current is spin polarized as well, which can be used to construct a spin-filter applied in spintronics. An interferometry device is designed to control the polarized current as well. The advantage and finite size effect on this system are discussed.

  19. SCHOOL OF EDUCATION Exam Code Exam Name Day Exam date Time Exam Hall

    E-Print Network [OSTI]

    Glasgow, University of

    SCHOOL OF EDUCATION Exam Code Exam Name Day Exam date Time Exam Hall EDUC1050_1 Electricity and Electronics T1 Fri 25/04/2014 09:30 - 11:30 Room 237 St Andrew's Building EDUC1013_1 Fundamentals in Education 1B Tue 29/04/2014 14:00 - 16:00 Gym St. Andrews Building EDUC4047_1 Materials and Processes T3 Thu

  20. Characterisation of Fourteenth-Century Bell-Casting Pit in Old Town Hall Sibiu, Romania

    E-Print Network [OSTI]

    Agata Olariu; Petre Munteanu-Besliu

    1999-08-17

    In this work we have made an analytical investigation by neutron activation analysis and X-ray fluorescence of a number of pieces found on the two hearths and the slag layer discovered at the Old Town Hall from Sibiu, Romania and some bells from the surrounding region of Sibiu. The elemental analyses suggest the fact that the hearths preserve traces of an activity of alloying of copper with tin for casting bells.

  1. Signatures of Fractional Exclusion Statistics in the Spectroscopy of Quantum Hall Droplets

    E-Print Network [OSTI]

    Cooper, Nigel R.; Simon, Steven H.

    2015-03-09

    of quasiparticle excitations with unconventional quantum statistics. The archetypal example is the fractional, “anyonic”, quantum statistics predicted for the quasiparticles of the fractional quantum Hall phases[1, 2]. While experiments on semiconductor devices... substantially from proposals to measure the fractional braiding statistics of quasiholes[7–9], notably by not re- quiring local time-dependent potentials for the adiabatic manipulation of the positions of the quasiholes. We have in mind a fast rotating gas...

  2. Rebuilding It Better: Greensburg, Kansas, City Hall | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLCALLETEREFU ElektronikRatesOpenInformation City

  3. Generalized Landau-level representation: effect of static screening in quantum Hall effect in graphene

    E-Print Network [OSTI]

    Igor A. Shovkovy; Lifang Xia

    2015-08-18

    By making use of the generalized Landau-level representation (GLLR) for the quasiparticle propagator, we study the effect of screening on the properties of the quantum Hall states with integer filling factors in graphene. The analysis is performed in the low-energy Dirac model in the improved rainbow approximation, in which the long-range Coulomb interaction is modified by the one-loop static screening effects in the presence of a background magnetic field. By utilizing a rather general ansatz for the propagator, in which all dynamical parameters are running functions of the Landau-level index $n$, we derive a self-consistent set of the Schwinger-Dyson (gap) equations and solve them numerically. The explicit solutions demonstrate that static screening leads to a substantial suppression of the gap parameters in the quantum Hall states with a broken $U(4)$ flavor symmetry. The temperature dependence of the energy gaps is also studied. The corresponding results mimic well the temperature dependence of the activation energies measured in experiment. It is also argued that, in principle, the Landau-level running of the quasiparticle dynamical parameters could be measured via optical studies of the integer quantum Hall states.

  4. MO-PIS-Exhibit Hall-01: Imaging: CT Dose Optimization Technologies I

    SciTech Connect (OSTI)

    Denison, K; Smith, S

    2014-06-15

    Partners in Solutions is an exciting new program in which AAPM partners with our vendors to present practical “hands-on” information about the equipment and software systems that we use in our clinics. The imaging topic this year is CT scanner dose optimization capabilities. Note that the sessions are being held in a special purpose room built on the Exhibit Hall Floor, to encourage further interaction with the vendors. Dose Optimization Capabilities of GE Computed Tomography Scanners Presentation Time: 11:15 – 11:45 AM GE Healthcare is dedicated to the delivery of high quality clinical images through the development of technologies, which optimize the application of ionizing radiation. In computed tomography, dose management solutions fall into four categories: employs projection data and statistical modeling to decrease noise in the reconstructed image - creating an opportunity for mA reduction in the acquisition of diagnostic images. Veo represents true Model Based Iterative Reconstruction (MBiR). Using high-level algorithms in tandem with advanced computing power, Veo enables lower pixel noise standard deviation and improved spatial resolution within a single image. Advanced Adaptive Image Filters allow for maintenance of spatial resolution while reducing image noise. Examples of adaptive image space filters include Neuro 3-D filters and Cardiac Noise Reduction Filters. AutomA adjusts mA along the z-axis and is the CT equivalent of auto exposure control in conventional x-ray systems. Dynamic Z-axis Tracking offers an additional opportunity for dose reduction in helical acquisitions while SmartTrack Z-axis Tracking serves to ensure beam, collimator and detector alignment during tube rotation. SmartmA provides angular mA modulation. ECG Helical Modulation reduces mA during the systolic phase of the heart cycle. SmartBeam optimization uses bowtie beam-shaping hardware and software to filter off-axis x-rays - minimizing dose and reducing x-ray scatter. The DICOM Radiation Dose Structured Report (RDSR) generates a dose report at the conclusion of every examination. Dose Check preemptively notifies CT operators when scan parameters exceed user-defined dose thresholds. DoseWatch is an information technology application providing vendor-agnostic dose tracking and analysis for CT (and all other diagnostic x-ray modalities) SnapShot Pulse improves coronary CTA dose management. VolumeShuttle uses two acquisitions to increase coverage, decrease dose, and conserve on contrast administration. Color-Coding for Kids applies the Broselow-Luten Pediatric System to facilitate pediatric emergency care and reduce medical errors. FeatherLight achieves dose optimization through pediatric procedure-based protocols. Adventure Series scanners provide a child-friendly imaging environment promoting patient cooperation with resultant reduction in retakes and patient motion. Philips CT Dose Optimization Tools and Advanced Reconstruction Presentation Time: 11:45 ‘ 12:15 PM The first part of the talk will cover “Dose Reduction and Dose Optimization Technologies” present in Philips CT Scanners. The main Technologies to be presented include: DoseRight and tube current modulation (DoseRight, Z-DOM, 3D-DOM, DoseRight Cardiac) Special acquisition modes Beam filtration and beam shapers Eclipse collimator and ClearRay collimator NanoPanel detector DoseRight will cover automatic tube current selection that automatically adjusts the dose for the individual patient. The presentation will explore the modulation techniques currently employed in Philips CT scanners and will include the algorithmic concepts as well as illustrative examples. Modulation and current selection technologies to be covered include the Automatic Current Selection component of DoseRight, ZDOM longitudinal dose modulation, 3D-DOM (combination of longitudinal and rotational dose modulation), Cardiac Dose right (an ECG based dose modulation scheme), and the DoseRight Index (DRI) IQ index. The special acquisition modes covers acquisition techniques such as prospective gating that

  5. Hall-effect-controlled gas dynamics in protoplanetary disks. I. Wind solutions at the inner disk

    SciTech Connect (OSTI)

    Bai, Xue-Ning

    2014-08-20

    The gas dynamics of protoplanetary disks (PPDs) is largely controlled by non-ideal magnetohydrodynamic (MHD) effects including Ohmic resistivity, the Hall effect, and ambipolar diffusion. Among these the role of the Hall effect is the least explored and most poorly understood. In this series, we have included, for the first time, all three non-ideal MHD effects in a self-consistent manner to investigate the role of the Hall effect on PPD gas dynamics using local shearing-box simulations. In this first paper, we focus on the inner region of PPDs, where previous studies (Bai and Stone 2013; Bai 2013) excluding the Hall effect have revealed that the inner disk up to ?10 AU is largely laminar, with accretion driven by a magnetocentrifugal wind. We confirm this basic picture and show that the Hall effect modifies the wind solutions depending on the polarity of the large-scale poloidal magnetic field B{sub 0} threading the disk. When B{sub 0}??>0, the horizontal magnetic field is strongly amplified toward the disk interior, leading to a stronger disk wind (by ?50% or less in terms of the wind-driven accretion rate). The enhanced horizontal field also leads to much stronger large-scale Maxwell stress (magnetic braking) that contributes to a considerable fraction of the wind-driven accretion rate. When B{sub 0}??<0, the horizontal magnetic field is reduced, leading to a weaker disk wind (by ? 20%) and negligible magnetic braking. Under fiducial parameters, we find that when B{sub 0}??>0, the laminar region extends farther to ?10-15 AU before the magnetorotational instability sets in, while for B{sub 0}??<0, the laminar region extends only to ?3-5 AU for a typical accretion rate of ?10{sup –8} to10{sup –7} M {sub ?} yr{sup –1}. Scaling relations for the wind properties, especially the wind-driven accretion rate, are provided for aligned and anti-aligned field geometries.

  6. Relative Ages of Globular Clusters

    E-Print Network [OSTI]

    Thomas H. Puzia

    2002-10-18

    Ages of extragalactic globular clusters can provide valuable insights into the formation and evolution of galaxies. In this contribution the photometric methods of age dating old globular cluster systems are summarised. The spectroscopic approach is reviewed with an emphasis of the right choice of age diagnostics. We present a new method of quantifying the relatively best age-sensitive spectroscopic index given the quality of a data set and a certain theoretical stellar synthesis model. The relatively best diagnostic plot is constructed from the set of Lick indices and used to age date globular clusters in several early-type galaxies which are part of a large spectroscopic survey of extragalactic globular cluster systems. We find that, independently of host galaxy, metal-poor ([Fe/H] 8 Gyr) and coeval. Metal-rich clusters show a wide range of ages from ~15 down to a few Gyr.

  7. Use of emission spectroscopy for real-time assessment of relative wall erosion rate of BHT-200 hall thruster for various regimes of operation

    E-Print Network [OSTI]

    Celik, Murat Alp

    Radiation emission due to Boron atoms sputtered from the Boron-Nitride ceramic walls of a BHT-200 Hall thruster was measured as

  8. Theoretical foundation for measuring the groundwater age distribution.

    SciTech Connect (OSTI)

    Gardner, William Payton; Arnold, Bill Walter

    2014-01-01

    In this study, we use PFLOTRAN, a highly scalable, parallel, flow and reactive transport code to simulate the concentrations of 3H, 3He, CFC-11, CFC-12, CFC-113, SF6, 39Ar, 81Kr, 4He and themean groundwater age in heterogeneous fields on grids with an excess of 10 million nodes. We utilize this computational platform to simulate the concentration of multiple tracers in high-resolution, heterogeneous 2-D and 3-D domains, and calculate tracer-derived ages. Tracer-derived ages show systematic biases toward younger ages when the groundwater age distribution contains water older than the maximum tracer age. The deviation of the tracer-derived age distribution from the true groundwater age distribution increases with increasing heterogeneity of the system. However, the effect of heterogeneity is diminished as the mean travel time gets closer the tracer age limit. Age distributions in 3-D domains differ significantly from 2-D domains. 3D simulations show decreased mean age, and less variance in age distribution for identical heterogeneity statistics. High-performance computing allows for investigation of tracer and groundwater age systematics in high-resolution domains, providing a platform for understanding and utilizing environmental tracer and groundwater age information in heterogeneous 3-D systems. Groundwater environmental tracers can provide important constraints for the calibration of groundwater flow models. Direct simulation of environmental tracer concentrations in models has the additional advantage of avoiding assumptions associated with using calculated groundwater age values. This study quantifies model uncertainty reduction resulting from the addition of environmental tracer concentration data. The analysis uses a synthetic heterogeneous aquifer and the calibration of a flow and transport model using the pilot point method. Results indicate a significant reduction in the uncertainty in permeability with the addition of environmental tracer data, relative to the use of hydraulic measurements alone. Anthropogenic tracers and their decay products, such as CFC11, 3H, and 3He, provide significant constraint oninput permeability values in the model. Tracer data for 39Ar provide even more complete information on the heterogeneity of permeability and variability in the flow system than the anthropogenic tracers, leading to greater parameter uncertainty reduction.

  9. REGISTRATION FORM PERSONAL INFORMATION

    E-Print Network [OSTI]

    Finley Jr., Russell L.

    ) EVENT ACTIVITIES Gordon Scott Hall, 540 E. Canfield, Detroit 7:30 - 8:00 a.m. Continental Breakfast of Medicine Quantity Complimentary MGM Grand, 1777 3rd Street, Detroit 5:30 p.m. Cocktail and Hors d 540 E. Canfield, 1369 Scott Hall Detroit, MI 48201 (877) WSU-MED1 alumni@med.wayne.edu Fax (313) 577

  10. Design Evolution Study - Aging Options

    SciTech Connect (OSTI)

    P. McDaniel

    2002-04-05

    The purpose of this study is to identify options and issues for aging commercial spent nuclear fuel received for disposal at the Yucca Mountain Mined Geologic Repository. Some early shipments of commercial spent nuclear fuel to the repository may be received with high-heat-output (younger) fuel assemblies that will need to be managed to meet thermal goals for emplacement. The capability to age as much as 40,000 metric tons of heavy metal of commercial spent nuclear he1 would provide more flexibility in the design to manage this younger fuel and to decouple waste receipt and waste emplacement. The following potential aging location options are evaluated: (1) Surface aging at four locations near the North Portal; (2) Subsurface aging in the permanent emplacement drifts; and (3) Subsurface aging in a new subsurface area. The following aging container options are evaluated: (1) Complete Waste Package; (2) Stainless Steel inner liner of the waste package; (3) Dual Purpose Canisters; (4) Multi-Purpose Canisters; and (5) New disposable canister for uncanistered commercial spent nuclear fuel. Each option is compared to a ''Base Case,'' which is the expected normal waste packaging process without aging. A Value Engineering approach is used to score each option against nine technical criteria and rank the options. Open issues with each of the options and suggested future actions are also presented. Costs for aging containers and aging locations are evaluated separately. Capital costs are developed for direct costs and distributable field costs. To the extent practical, unit costs are presented. Indirect costs, operating costs, and total system life cycle costs will be evaluated outside of this study. Three recommendations for aging commercial spent nuclear fuel--subsurface, surface, and combined surface and subsurface are presented for further review in the overall design re-evaluation effort. Options that were evaluated but not recommended are: subsurface aging in a new subsurface area (high cost); surface aging in the complete waste package (risk to the waste package and impact on the Waste Handling Facility); and aging in the stainless steel liner (impact on the waste package design and new high risk operations added to the waste packaging process). The selection of a design basis for aging will be made in conjunction with the other design re-evaluation studies.

  11. Beyond Computation: Information Technology, Organizational

    E-Print Network [OSTI]

    Beyond Computation: Information Technology, Organizational Transformation and Business Performance digital computers with remarkable capabilities for calculation--the dawn of the com- puter age. However can be used to store, retrieve, organize, transmit, and algorithmically transform any type

  12. Why is the church so cold? Informal observation of energy use in a volunteer-managed shared

    E-Print Network [OSTI]

    Carletta, Jean

    heat completely informal volunteer work #12;Outline Essential Background: Domestic Boiler Controls Background: Domestic Boiler Controls The Setting - Premises Warm Centre Cold Hall Cold Church, High Bills that will do that for you. #12;Boiler thermostat Controls the temperature of the water in the system -- which

  13. What the hyena's laugh tells: Sex, age, dominance and individual signature in the giggling call of Crocuta crocuta

    E-Print Network [OSTI]

    Mathevon, Nicolas; Koralek, Aaron; Weldele, Mary; Glickman, Stephen E; Theunissen, Frédéric E

    2010-01-01

    calculated from all gig- gle notes for each individual waspresent analysis showed that gig- gles encode individualitythe age information embedded in the gig- gle could be highly

  14. Field effect in the quantum Hall regime of a high mobility graphene wire

    SciTech Connect (OSTI)

    Barraud, C., E-mail: cbarraud@phys.ethz.ch, E-mail: clement.barraud@univ-paris-diderot.fr; Choi, T.; Ihn, T.; Ensslin, K. [Solid State Physics Laboratory, ETH Zürich, CH-8093 Zürich (Switzerland); Butti, P.; Shorubalko, I. [Swiss Federal Laboratories of Materials Science and Technologies, EMPA Elect. Metrol. Reliabil. Lab., CH-8600 Dübendorf (Switzerland); Taniguchi, T.; Watanabe, K. [National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 (Japan)

    2014-08-21

    In graphene-based electronic devices like in transistors, the field effect applied thanks to a gate electrode allows tuning the charge density in the graphene layer and passing continuously from the electron to the hole doped regime across the Dirac point. Homogeneous doping is crucial to understand electrical measurements and for the operation of future graphene-based electronic devices. However, recently theoretical and experimental studies highlighted the role of the electrostatic edge due to fringing electrostatic field lines at the graphene edges [P. Silvestrov and K. Efetov, Phys. Rev. B 77, 155436 (2008); F. T. Vasko and I. V. Zozoulenko, Appl. Phys. Lett. 97, 092115 (2010)]. This effect originates from the particular geometric design of the samples. A direct consequence is a charge accumulation at the graphene edges giving a value for the density, which deviates from the simple picture of a plate capacitor and also varies along the width of the graphene sample. Entering the quantum Hall regime would, in principle, allow probing this accumulation thanks to the extreme sensitivity of this quantum effect to charge density and the charge distribution. Moreover, the presence of an additional and counter-propagating edge channel has been predicted [P. Silvestrov and K. Efetov, Phys. Rev. B 77, 155436 (2008)] giving a fundamental aspect to this technological issue. In this article, we investigate this effect by tuning a high mobility graphene wire into the quantum Hall regime in which charge carriers probe the electrostatic potential at high magnetic field close to the edges. We observe a slight deviation to the linear shift of the quantum Hall plateaus with magnetic field and we study its evolution for different filling factors, which correspond to different probed regions in real space. We discuss the possible origins of this effect including an increase of the charge density towards the edges.

  15. Magnetic shielding of a laboratory Hall thruster. I. Theory and validation

    SciTech Connect (OSTI)

    Mikellides, Ioannis G., E-mail: Ioannis.G.Mikellides@jpl.nasa.gov; Katz, Ira; Hofer, Richard R.; Goebel, Dan M. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109 (United States)

    2014-01-28

    We demonstrate a technique by which erosion of the acceleration channel in Hall thrusters can be reduced by at least a few orders of magnitude. The first principles of the technique, now known as “magnetic shielding,” have been derived based on the findings of 2-D numerical simulations. The simulations, in turn, guided the modification of an existing 6-kW laboratory Hall thruster to test the theory and are the main subject of this Part I article. Part II expands on the results of the experiments. Near the walls of the magnetically shielded (MS) thruster theory and experiment agree that (1) the plasma potential has been sustained at values near the discharge voltage, and (2) the electron temperature has been lowered compared to the unshielded thruster. Erosion rates deduced directly from the wall probes show reductions of at least ?3 orders of magnitude at the MS inner wall when an ion energy threshold of 30.5?V is used in the sputtering yield model of the channel material. At the outer wall the probes reveal that the ion energy was below the assumed threshold. Using a threshold of 25?V, the simulations predict a minimum reduction of ?600 at the MS inner wall. At the MS outer wall ion energies are found to be below 25?V. When a 50-V threshold is used the computed ion energies are below the threshold at both sides of the channel. Uncertainties, sensitivities, and differences between theory and experiment are also discussed. The elimination of wall erosion in Hall thrusters solves a problem that has remained unsettled for more than five decades.

  16. Invited Article: An integrated mid-infrared, far-infrared, and terahertz optical Hall effect instrument

    SciTech Connect (OSTI)

    Kühne, P., E-mail: kuehne@huskers.unl.edu; Schubert, M., E-mail: schubert@engr.unl.edu; Hofmann, T., E-mail: thofmann@engr.unl.edu [Department of Electrical Engineering and Center for Nanohybrid Functional Materials, University of Nebraska-Lincoln, Lincoln, Nebraska 68588 (United States); Herzinger, C. M., E-mail: cherzinger@jawoollam.com; Woollam, J. A., E-mail: jwoollam@jawoollam.com [J. A. Woollam Co., Inc., 645 M Street, Suite 102, Lincoln, Nebraska 68508-2243 (United States)

    2014-07-15

    We report on the development of the first integrated mid-infrared, far-infrared, and terahertz optical Hall effect instrument, covering an ultra wide spectral range from 3 cm{sup ?1} to 7000 cm{sup ?1} (0.1–210 THz or 0.4–870 meV). The instrument comprises four sub-systems, where the magneto-cryostat-transfer sub-system enables the usage of the magneto-cryostat sub-system with the mid-infrared ellipsometer sub-system, and the far-infrared/terahertz ellipsometer sub-system. Both ellipsometer sub-systems can be used as variable angle-of-incidence spectroscopic ellipsometers in reflection or transmission mode, and are equipped with multiple light sources and detectors. The ellipsometer sub-systems are operated in polarizer-sample-rotating-analyzer configuration granting access to the upper left 3 × 3 block of the normalized 4 × 4 Mueller matrix. The closed cycle magneto-cryostat sub-system provides sample temperatures between room temperature and 1.4 K and magnetic fields up to 8 T, enabling the detection of transverse and longitudinal magnetic field-induced birefringence. We discuss theoretical background and practical realization of the integrated mid-infrared, far-infrared, and terahertz optical Hall effect instrument, as well as acquisition of optical Hall effect data and the corresponding model analysis procedures. Exemplarily, epitaxial graphene grown on 6H-SiC, a tellurium doped bulk GaAs sample and an AlGaN/GaN high electron mobility transistor structure are investigated. The selected experimental datasets display the full spectral, magnetic field and temperature range of the instrument and demonstrate data analysis strategies. Effects from free charge carriers in two dimensional confinement and in a volume material, as well as quantum mechanical effects (inter-Landau-level transitions) are observed and discussed exemplarily.

  17. Gentrifying geriatrics : challenging design paradigms for the aged and aging

    E-Print Network [OSTI]

    Van der Linde, Gerhard J. (Gerhard Johan)

    2011-01-01

    Internationally the world is undergoing a grey revolution, with the average age of the human population being higher than it has ever been before. Within the U.S. context this trend is driven by the Baby Boomers, the 80 ...

  18. AGING SYSTEM DESIGN DEVELOPMENT STRATEGY

    SciTech Connect (OSTI)

    J. Beesley

    2005-02-07

    This plan provides an overview, work to date, and the path forward for the design development strategy of the Aging cask for aging commercial spent nuclear fuel (CSNF) at the Yucca Mountain Project (YMP) repository site. Waste for subsurface emplacement at the repository includes US Department of Energy (DOE) high-level radioactive waste (HLW), DOE SNF, commercial fuel in dual-purpose canisters (DPCs), uncanistered bare fuel, naval fuel, and other waste types. Table 1-1 lists the types of radioactive materials that may be aged at YMP, and those materials that will not be placed in an aging cask or module. This plan presents the strategy for design development of the Aging system. The Aging system will not handle naval fuel, DOE HLW, MCOs, or DOE SNF since those materials will be delivered to the repository in a state and sequence that allows them to be placed into waste packages for emplacement. Some CSNF from nuclear reactors, especially CSNF that is thermally too hot for emplacement underground, will need to be aged at the repository.

  19. Upgraded photon calorimeter with integrating readout for Hall A Compton Polarimeter at Jefferson Lab

    SciTech Connect (OSTI)

    Friend, M; Benmokhtar, F; Camsonne, A; Dalton, M; Franklin, G B; Mamyan, V; Michaels, R; Nanda, S; Nelyubin, V; Paschke, K; Quinn, B; Rakhman, A; Souder, P

    2012-06-01

    The photon arm of the Compton polarimeter in Hall A of Jefferson Lab has been upgraded to allow for electron beam polarization measurements with better than 1% accuracy. The data acquisition system (DAQ) now includes an integrating mode, which eliminates several systematic uncertainties inherent in the original counting-DAQ setup. The photon calorimeter has been replaced with a Ce-doped Gd2SiO5 crystal, which has a bright output and fast response, and works well for measurements using the new integrating method at electron beam energies from 1 to 6 GeV.

  20. Upgraded photon calorimeter with integrating readout for Hall A Compton Polarimeter at Jefferson Lab

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

    Friend, M.; Parno, D.; Benmokhtar, F.; Camsonne, A.; Dalton, M. M.; Franklin, G. B.; Mamyan, V.; Michaels, R.; Nanda, S.; Nelyubin, V.; et al

    2012-06-01

    The photon arm of the Compton polarimeter in Hall A of Jefferson Lab has been upgraded to allow for electron beam polarization measurements with better than 1% accuracy. The data acquisition system (DAQ) now includes an integrating mode, which eliminates several systematic uncertainties inherent in the original counting-DAQ setup. The photon calorimeter has been replaced with a Ce-doped Gd2SiO5 crystal, which has a bright output and fast response, and works well for measurements using the new integrating method at electron beam energies from 1 to 6 GeV.

  1. Transport properties in bilayer Quantum Hall systems in the presence of a topological defect

    E-Print Network [OSTI]

    Gerardo Cristofano; Vincenzo Marotta; Adele Naddeo; Giuliano Niccoli

    2006-06-27

    Following a suggestion given in Phys. Lett. B 571(2003) 621, we show how a bilayer Quantum Hall system at fillings nu =1/p+1 can exhibit a point-like topological defect in its edge state structure. Indeed our CFT theory for such a system, the Twisted Model (TM), gives rise in a natural way to such a feature in the twisted sector. Our results are in agreement with recent experimental findings (Phys. Rev. B 72 (2005) 041305) which evidence the presence of a topological defect in the transport properties of the bilayer system.

  2. Quantum Hall effect in HgTe quantum wells at nitrogen temperatures

    SciTech Connect (OSTI)

    Kozlov, D. A. Kvon, Z. D.; Mikhailov, N. N.; Dvoretskii, S. A.; Weishäupl, S.; Krupko, Y.; Portal, J.-C.

    2014-09-29

    We report on the observation of quantized Hall plateaus in a system of two-dimensional Dirac fermions, implemented in a 6.6?nm HgTe quantum well at magnetic fields up to 34?T at nitrogen temperatures. The activation energies determined from the temperature dependence of the longitudinal resistivity are found to be almost equal for the filling factors ? of 1 and 2. This indicates that the large values of the g-factor (about 30–40) remain unchanged at very strong magnetic fields.

  3. An axially propagating two-stream instability in the Hall thruster plasma

    SciTech Connect (OSTI)

    Tsikata, S., E-mail: sedina.tsikata@cnrs-orleans.fr [ICARE, CNRS (UPR 3021), 1C ave. de la Recherche Scientifique, 45071 Orléans (France); Cavalier, J. [Institute of Plasma Physics ASCR, Prague (Czech Republic); Héron, A. [CPHT, CNRS (UMR 7644), Ecole Polytechnique, Route de Saclay, 91128 Palaiseau (France); Honoré, C.; Grésillon, D. [LPP, CNRS (UMR 7648), Ecole Polytechnique-Univ. Paris-Sud-UPMC Univ. Paris 06, Route de Saclay, 91128 Palaiseau (France); Lemoine, N.; Coulette, D. [IJL, CNRS (UMR 7198), Université de Lorraine, BP 70239, 54506 Vandoeuvre-lčs-Nancy (France)

    2014-07-15

    Collective Thomson scattering experiments reveal the presence of high-frequency, axial electron density fluctuations at millimetric wavelengths in the Hall thruster plasma. The properties of these fluctuations are investigated experimentally and via linear kinetic theory. The relative drift of electrons and ions in the axial direction is found to be insufficient to cause excitation of the observed mode. Instead, the mode is determined to be a two-stream instability arising due to the velocity difference between singly and doubly charged ion populations in the plume.

  4. AC-magnetotransport of a 2DEG in the quantum Hall regime

    SciTech Connect (OSTI)

    Hernández, C.; Chaubet, C.

    2014-05-15

    In this paper we present an ac-magneto-transport study of a two-dimensional electron gas (2DEG) in the quantum Hall effect (QHE) regime, for frequencies in the range [100Hz, 1MHz]. We present a new approach to understand admittance measurements based in the Landauer-Buttiker formalism for QHE edge channels and taking into account the capacitance and the topology of the cables connected to the contacts used in the measurements. Our model predicts an universal behavior with the a-dimensional parameter RC? where R is the 2 wires resistance of the 2DEG, C the capacitance cables and the angular frequency, in agreement with experiments.

  5. Disorder effects in the anomalous Hall effect induced by Berry curvature RID B-5617-2009 

    E-Print Network [OSTI]

    Sinitsyn, NA; Niu, Q.; Sinova, Jairo; Nomura, K.

    2005-01-01

    sufficiently low Fermi level ?EF?h ,?kF?? the minor band becomes depleted and the transport is only in the major band. In this case the clean limit Hall current is jyx?clean? = e2Ex 2?2???1 ? 1?1 + ?kF??/h?2? . ?39? We address next the effects of impurity... the interplay of the ex- change field, which breaks the time-reversal symmetry, and the spin-orbit coupling, that violates the chiral symmetry. Interestingly, at the same time a similar effect was predicted and explained in geometrical optics,2 however, its...

  6. Inverse spin Hall effect induced by spin pumping into semiconducting ZnO

    SciTech Connect (OSTI)

    Lee, Jung-Chuan [Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China); Huang, Leng-Wei [Graduate Institute of Applied Physics, National Chengchi University, Taipei 11605, Taiwan (China); Hung, Dung-Shing, E-mail: dshung@mail.mcu.edu.tw [Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China); Department of Information and Telecommunications Engineering, Ming Chuan University, Taipei 111, Taiwan (China); Chiang, Tung-Han [Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan (China); Huang, J. C. A., E-mail: jcahuang@mail.ncku.edu.tw [Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan (China); Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan (China); Liang, Jun-Zhi [Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan (China); Department of Physics, Fu Jen Catholic University, Taipei 242, Taiwan (China); Lee, Shang-Fan, E-mail: leesf@phys.sinica.edu.tw [Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China); Graduate Institute of Applied Physics, National Chengchi University, Taipei 11605, Taiwan (China)

    2014-02-03

    The inverse spin Hall effect (ISHE) of n-type semiconductor ZnO thin films with weak spin-orbit coupling has been observed by utilizing the spin pumping method. In the ferromagnetic resonance condition, the spin pumping driven by the dynamical exchange interaction of a permalloy film injects a pure spin current into the adjacent ZnO layer. This spin current gives rise to a DC voltage through the ISHE in the ZnO layer, and the DC voltage is proportional to the microwave excitation power. The effect is sizeable even when the spin backflow is considered.

  7. Recent results and challenges in development of metallic Hall sensors for fusion reactors

    SciTech Connect (OSTI)

    ?uran, Ivan; Mušálek, Radek; Kova?ík, Karel [Institute of Plasma Physics AS CR, Za Slovankou 3, 182 00 Praha 8 (Czech Republic); Sentkerestiová, Jana [Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, B?ehová 7, 115 19 Praha 1 (Czech Republic); Kohout, Michal [Institute of Physics AS CR, Na Slovance 1999/2, 182 21 Praha 8 (Czech Republic); Viererbl, Ladislav [Research Centre Rez, Hlavní 130, 250 68 Husinec-?ež (Czech Republic)

    2014-08-21

    Reliable and precise diagnostic of local magnetic field is crucial for successful operation of future thermonuclear fusion reactors based on magnetic confinement. Magnetic sensors at these devices will experience an extremely demanding operational environment with large radiation and thermal loads in combination with required long term, reliable, and service-free performance. Neither present day commercial nor laboratory measurement systems comply with these requirements. Metallic Hall sensors based on e.g. copper or bismuth could potentially satisfy these needs. We present the technology for manufacturing of such sensors and some initial results on characterization of their properties.

  8. The Hall mobility measurement of Liquid Phase Epitaxy grown aluminum gallium arsenide 

    E-Print Network [OSTI]

    Choi, Young-Shig

    1986-01-01

    ' Committee) 8~zP~ Donald L. Parker (Member) . / ! "Yp Thomas W. Adair 111 (Member) Ran al L. Geif;er ( i vl e &n h p. I' ) . ). W. Howze (II& ad of' D& partrnenf. ) D&'c&" rnb& r f!)f&(i ABSTRACT The Hall Mobility Measurement ol' Liquid Phase... keep unwanted irnpurit, ies in solut. ion. They & a. n also be made very thin, i. e. . a, few microns. 'I'hese factors make LPE important &o the bet&&rostructur& devi& e for the growth ol' non-silicon based materials, which ar& used to fabricat& a...

  9. OpenEI Town Hall Meeting #4 | OpenEI Community

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg, Oregon:OGE EnergyOklahoma:VisualizingOpenEI Town Hall Meeting

  10. Town Hall Meeting July 9th, 2012 | OpenEI Community

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin Film Solar TechnologiesCFRTopTen EnergyTorayWesternTown Hall

  11. University of New Hampshire Stormwater Center (UNHSC) Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://unh.edu/unhsc/

    E-Print Network [OSTI]

    University of New Hampshire Stormwater Center (UNHSC) Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://unh.edu/unhsc/ Copyright © 2014 The University of New Hampshire. All Rights;University of New Hampshire Stormwater Center (UNHSC) Gregg Hall 35 Colovos Road Durham, New Hampshire

  12. University of New Hampshire Stormwater Center (UNHSC) Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://www.unh.edu/erg/cstev

    E-Print Network [OSTI]

    University of New Hampshire Stormwater Center (UNHSC) Gregg Hall 35 Colovos Road Durham, New June 2009 #12;University of New Hampshire Stormwater Center (UNHSC) Gregg Hall 35 Colovos Road Durham, New Hampshire 03824-3534 http://www.unh.edu/erg/cstev UNHSC SUBSURFACE GRAVEL WETLAND DESIGN

  13. Residence Hall Fire and Fire Alarm Procedures Page 1 of 3 Virginia Polytechnic Institute and State University No. 5605 Rev.: 3

    E-Print Network [OSTI]

    Residence Hall Fire and Fire Alarm Procedures Page 1 of 3 Virginia Polytechnic Institute and State ____________________________________________________________________________________ Subject: Residence Hall Fire and Fire Alarm Procedures ...........................................................................................................................2 1. Purpose Outlined below are the procedures to be followed should there be a fire alarm or fire

  14. Office of International Programs Westside Hall 601 South College Road Wilmington, North Carolina 28403-5965 Ph: 910-962-3685 FAX: 910-962-4053 studyabroad@uncw.edu www.uncw.edu/international

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Office of International Programs Westside Hall 601 South College Road Wilmington, North Carolina Programs Westside Hall 601 South College Road Wilmington, North Carolina 28403-5965 Ph: 910 ­ England) #12;Office of International Programs Westside Hall 601 South College Road Wilmington, North

  15. Comparison of two data acquisition and processing systems of Moller polarimeter in Hall A of Jefferson Lab

    SciTech Connect (OSTI)

    Vereshchaka, Vadym V.; Glamazdin, Oleksandr V.; Pomatsalyuk, Roman I.

    2014-07-01

    Two data acquisition and processing systems are used simultaneously to measure electron beam polarization by Moller polarimeter in Hall A of Jefferson Lab (Newport News, VA, USA). The old system (since 1997) is fully functional, but is not repairable in case of malfunction (system modules arenot manufactured anymore). The new system (since 2010) based on flash-ADC is more accurate, but currently requires more detailed adjustment and further improvement. Description and specifications of two data acquisition and processing systems have been given. The results of polarization measurements during experiments conducted in Hall A from 2010 to 2012 are compared.

  16. Comparison of two data acquisition and processing systems of Moller polarimeter in Hall A of Jefferson Lab

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

    Vereshchaka, Vadym V.; Glamazdin, Oleksandr V.; Pomatsalyuk, Roman I.

    2014-07-01

    Two data acquisition and processing systems are used simultaneously to measure electron beam polarization by Moller polarimeter in Hall A of Jefferson Lab (Newport News, VA, USA). The old system (since 1997) is fully functional, but is not repairable in case of malfunction (system modules arenot manufactured anymore). The new system (since 2010) based on flash-ADC is more accurate, but currently requires more detailed adjustment and further improvement. Description and specifications of two data acquisition and processing systems have been given. The results of polarization measurements during experiments conducted in Hall A from 2010 to 2012 are compared.

  17. Spin Hall and spin-diagonal conductivity in the presence of Rashba and Dresselhaus spin-orbit coupling 

    E-Print Network [OSTI]

    Sinitsyn, NA; Hankiewicz, EM; Teizer, Winfried; Sinova, Jairo.

    2004-01-01

    -split subbands being occupied.8 Motivated by re- cent experiments12,13 which have demonstrated the ability to tune the magnitude of the Rashba and Dresselhaus spin-orbit coupling strength directly and by the fact that when both coupling strengths are equal... Hall effect accounts rather convincingly for experimental observations.36 Besides the several approaches already proposed to mea- sure the spin-Hall effect,7,8,12,37 the tunability of both the Rashba and Dresselhaus coupling parameters12,13...

  18. A Review of "Hall of Mirrors: Power, Witchcraft, and Caste in Colonial Mexico" by Laura A. Lewis 

    E-Print Network [OSTI]

    Garcia, Patricia

    2009-01-01

    of scholarship, and enough nuggets of new research to keep even Monteverdi specialists engaged. Laura A. Lewis. Hall of Mirrrors: Power, Witchcraft, and Caste in Colonial Mexico. Durham: Duke University Press, 2003. xvi + 262 pp. $79.95 cloth; $22....95 paperback. Review by patricia m. garc?a, the university of texas at austin. Laura A. Lewis?s Hall of Mirrors: Power, Witchcraft, and Caste in Co- lonial Mexico begins with the first of many case histories of men and women accused of engaging in, directly...

  19. Effect of the magnetic lenses on the electron current due to near wall conductivity in a Hall thruster

    SciTech Connect (OSTI)

    Wu Zhiwen; Liu Xiangyang; Wang Ningfei [School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081 (China); Yu Daren [Harbin Plasma Propulsion Lab, Mail Box 458, Harbin Institute of Technology, Harbin 150001 (China)

    2010-07-15

    The effect of magnetic lens on the electron current due to near wall conductivity (NWC) in a Hall thruster is studied. A Monte Carlo model is employed to simulate the effect of the large magnetic field incidence angle on the electron current. The simulation results show that the electron current due to NWC decreases in the case of large incidence. The simulation qualitatively agrees with the related experimental result. And the simulation also demonstrates that choosing the curvature angle of the magnetic field is also a key factor to design a Hall thruster with high operation performance.

  20. Why Advertise The Age (Mon) is read by

    E-Print Network [OSTI]

    Peters, Richard

    OVERVIEW EDUCATION #12;Why Advertise The Age (Mon) is read by: ·358,000 tertiary qualified: 659,000 Education Advertising Contact Information Liza Kwaks ­ Account Manager Ph: 03 8667 4243 Email opportunities for advertisers to reach parents, students, teacher and education professionals. Profile* 44% 56

  1. ACM TODS in this Internet Age Richard Snodgrass

    E-Print Network [OSTI]

    Snodgrass, Richard T.

    ACM TODS in this Internet Age Richard Snodgrass rts@cs.arizona.edu It is a clich the degree to which ACM in general and TODS in particular have embraced the unique capabilities of the web utilizes the web, in all phases of publishing. Journal information The TODS web site (http://www.acm

  2. Brothers, Sisters and Aging Parents 

    E-Print Network [OSTI]

    Isbell, Lou

    1999-09-02

    Adult children play a crucial role in helping aging parents. When relationships with siblings are poor, everyone suffers. Brothers and sisters can build strong relationships and unite in caring for elderly parents when they learn to relate to each...

  3. Cell Senescence: Aging and Cancer

    ScienceCinema (OSTI)

    Campisi, Judith

    2013-05-29

    Scientists have identified a molecular cause behind the ravages of old age and in doing so have also shown how a natural process for fighting cancer in younger persons can actually promote cancer in older individuals.

  4. Accelerated Aging of Roofing Surfaces

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

    Accelerated aging of roofing surfaces Hugo Destaillats, Ph.D. Lawrence Berkeley National Laboratory HDestaillats@LBL.gov (510) 486-5897 http:HeatIsland.LBL.gov April 4, 2013...

  5. Tensile-property characterization of thermally aged cast stainless steels

    SciTech Connect (OSTI)

    Michaud, W.F.; Toben, P.T.; Soppet, W.K.; Chopra, O.K.

    1994-02-01

    The effect of thermal aging on tensile properties of cast stainless steels during service in light water reactors has been evaluated. Tensile data for several experimental and commercial heats of cast stainless steels are presented. Thermal aging increases the tensile strength of these steels. The high-C Mo-bearing CF-8M steels are more susceptible to thermal aging than the Mo-free CF-3 or CF-8 steels. A procedure and correlations are presented for predicting the change in tensile flow and yield stresses and engineering stress-vs.-strain curve of cast stainless steel as a function of time and temperature of service. The tensile properties of aged cast stainless steel are estimated from known material information, i.e., chemical composition and the initial tensile strength of the steel. The correlations described in this report may be used for assessing thermal embrittlement of cast stainless steel components.

  6. Energy Efficiency Improvements to Wundar Hall, a Historic Building on the Concordia Campus, Milwaukee, Wisconsin

    SciTech Connect (OSTI)

    Karman, Nathan

    2012-11-29

    The Forest County Potawatomi Community (â??FCPCâ?ť or â??Communityâ?ť) implemented energy efficiency improvements to revitalize Wundar Hall, a 34,000 square foot (â??SFâ?ť) building that was formerly used as a dormitory and is listed on the National Registry of Historic Places, into an office building. Wundar Hall is the first of many architecturally and historically significant buildings that the Community hopes to renovate at the former Concordia College campus, property on the near west side of Milwaukee that was taken into trust for the Community by the United States on July 10, 1990 (collectively, the â??Concordia Trust Propertyâ?ť). As part of this project, which was conducted with assistance from the Department of Energyâ??s Tribal Energy Program (â??TEPâ?ť), the Community updated and/or replaced the building envelope, mechanical systems, the plumbing system, the electrical infrastructure, and building control systems. The project is expected to reduce the buildingâ??s natural gas consumption by 58% and the electricity consumption by 55%. In addition, the project was designed to act as a catalyst to further renovation of the Concordia Trust Property and the neighborhood. The City of Milwaukee has identified redevelopment of the Concordia Trust Property as a â??Catalytic Projectâ?ť for revitalizing the near west side. The Tribe envisions a revitalized, mixed-use campus of community services, education, and economic developmentâ??providing services to the Indian community and jobs to the neighborhood.

  7. Beta (?) tungsten thin films: Structure, electron transport, and giant spin Hall effect

    SciTech Connect (OSTI)

    Hao, Qiang; Chen, Wenzhe; Xiao, Gang

    2015-05-04

    We use a simple magnetron sputtering process to fabricate beta (?) tungsten thin films, which are capable of generating giant spin Hall effect. As-deposited thin films are always in the metastable ?-W phase from 3.0 to 26.7?nm. The ?-W phase remains intact below a critical thickness of 22.1?nm even after magnetic thermal annealing at 280?°C, which is required to induce perpendicular magnetic anisotropy (PMA) in a layered structure of ?-W/Co{sub 40}Fe{sub 40}B{sub 20}/MgO. Intensive annealing transforms the thicker films (>22.1?nm) into the stable ?-W phase. We analyze the structure and grain size of both ?- and ?-W thin films. Electron transport in terms of resistivity and normal Hall effect is studied over a broad temperature range of 10?K to at least 300?K on all samples. Very low switching current densities are achieved in ?-W/Co{sub 40}Fe{sub 40}B{sub 20}/MgO with PMA. These basic properties reveal useful behaviors in ?-W thin films, making them technologically promising for spintronic magnetic random access memories and spin-logic devices.

  8. Source and Extraction for Simultaneous Four-hall Beam Delivery System at CEBAF

    SciTech Connect (OSTI)

    Kazimi, Reza; Wang, Haipeng; Spata, Mike F.; Hansknecht, John C.

    2013-06-01

    A new design for simultaneous delivery of the electron beam to all four 12 GeV CEBAF experimental halls* requires a new 750 MHz RF separator system in the 5th pass extraction region, a 250 MHz repetition rate for its beams, and addition of a fourth laser at the photo-cathode gun. The proposed system works in tandem with the existing 500 MHz RF separators and beam repetition rate on the lower passes. The new 5th pass RF separators will have the same basic design but modified to run at 750 MHz. The change to the beam repetition rate will be at the photo-cathode gun through an innovative upgrade of the seed laser driver system using electro-optic modulators. The new laser system also allows addition of the fourth laser. The new RF separators, the new laser system and other hardware changes required to implement the Four-Hall operation delivery system will be discussed in this paper.

  9. Temperature-driven band inversion in Pb?.??Sn?.??Se: Optical and Hall-effect studies

    SciTech Connect (OSTI)

    Anand, Naween; Gu, Genda; Buvaev, Sanal; Hebard, A. F.; Tanner, D. B.; Chen, Zhiguo; Li, Zhiqiang; Choudhary, Kamal; Sinnott, S. B.; Martin, C.

    2014-12-23

    Optical and Hall-effect measurements have been performed on single crystals of Pb?.??Sn?.??Se, a IV-VI mixed chalcogenide. The temperature dependent (10–300 K) reflectance was measured over 40–7000 cm?ą (5–870 meV) with an extension to 15,500 cm?ą (1.92 eV) at room temperature. The reflectance was fit to the Drude-Lorentz model using a single Drude component and several Lorentz oscillators. The optical properties at the measured temperatures were estimated via Kramers-Kronig analysis as well as by the Drude-Lorentz fit. The carriers were p-type with the carrier density determined by Hall measurements. A signature of valence intraband transition is found in the low-energy optical spectra. It is found that the valence-conduction band transition energy as well as the free carrier effective mass reach minimum values at 100 K, suggesting temperature-driven band inversion in the material. Density function theory calculation for the electronic band structure also make similar predictions.

  10. Temperature-driven band inversion in Pb?.??Sn?.??Se: Optical and Hall-effect studies

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

    Anand, Naween; Gu, Genda; Buvaev, Sanal; Hebard, A. F.; Tanner, D. B.; Chen, Zhiguo; Li, Zhiqiang; Choudhary, Kamal; Sinnott, S. B.; Martin, C.

    2014-12-23

    Optical and Hall-effect measurements have been performed on single crystals of Pb?.??Sn?.??Se, a IV-VI mixed chalcogenide. The temperature dependent (10–300 K) reflectance was measured over 40–7000 cm?ą (5–870 meV) with an extension to 15,500 cm?ą (1.92 eV) at room temperature. The reflectance was fit to the Drude-Lorentz model using a single Drude component and several Lorentz oscillators. The optical properties at the measured temperatures were estimated via Kramers-Kronig analysis as well as by the Drude-Lorentz fit. The carriers were p-type with the carrier density determined by Hall measurements. A signature of valence intraband transition is found in the low-energy opticalmore »spectra. It is found that the valence-conduction band transition energy as well as the free carrier effective mass reach minimum values at 100 K, suggesting temperature-driven band inversion in the material. Density function theory calculation for the electronic band structure also make similar predictions.« less

  11. Resonant cavity mode dependence of anomalous and inverse spin Hall effect

    SciTech Connect (OSTI)

    Kim, Sang-Il; Seo, Min-Su; Park, Seung-young

    2014-05-07

    The direct current electric voltage induced by the Inverse Spin Hall Effect (ISHE) and Anomalous Hall Effect (AHE) was investigated in the TE{sub 011} and TE{sub 102} cavities. The ISHE and AHE components were distinguishable through the fitting of the voltage spectrum. The unwanted AHE was minimized by placing the DUT (Device Under Test) at the center of both the TE{sub 011} and TE{sub 102} cavities. The voltage of ISHE in the TE{sub 011} cavity was larger than that in the TE{sub 102} cavity due to the higher quality factor of the former. Despite optimized centering, AHE voltage from TE{sub 011} cavity was also higher. The reason was attributed to the E-field distribution inside the cavity. In the case of the TE{sub 011} cavity, the DUT was easily exposed to the E-field in all directions. Therefore, the parasitic AHE voltage in the TE{sub 102} cavity was less sensitive than that in the TE{sub 011} cavity to decentering problem.

  12. Generalized Landau-level representation: effect of static screening in quantum Hall effect in graphene

    E-Print Network [OSTI]

    Shovkovy, Igor A

    2015-01-01

    By making use of the generalized Landau-level representation (GLLR) for the quasiparticle propagator, we study the effect of screening on the properties of the quantum Hall states with integer filling factors in graphene. The analysis is performed in the low-energy Dirac model in the improved rainbow approximation, in which the long-range Coulomb interaction is modified by the one-loop static screening effects in the presence of a background magnetic field. By utilizing a rather general ansatz for the propagator, in which all dynamical parameters are running functions of the Landau-level index $n$, we derive a self-consistent set of the Schwinger-Dyson (gap) equations and solve them numerically. The explicit solutions demonstrate that static screening leads to a substantial suppression of the gap parameters in the quantum Hall states with a broken $U(4)$ flavor symmetry. The temperature dependence of the energy gaps is also studied. The corresponding results mimic well the temperature dependence of the activa...

  13. Temperature-driven band inversion in Pb?.??Sn?.??Se: Optical and Hall-effect studies

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

    Anand, Naween [Univ. of Florida, Gainesville, FL (United States); Gu, Genda [Brookhaven National Lab. (BNL), Upton, NY (United States); Buvaev, Sanal [Univ. of Florida, Gainesville, FL (United States); Hebard, A. F. [Univ. of Florida, Gainesville, FL (United States); Tanner, D. B. [Univ. of Florida, Gainesville, FL (United States); Chen, Zhiguo [Florida State Univ., Tallahassee, FL (United States); Li, Zhiqiang [Florida State Univ., Tallahassee, FL (United States); Choudhary, Kamal [Univ. of Florida, Gainesville, FL (United States); Sinnott, S. B. [Univ. of Florida, Gainesville, FL (United States); Martin, C. [Ramapo College, Mahwah, NJ (United States)

    2014-12-01

    Optical and Hall-effect measurements have been performed on single crystals of Pb?.??Sn?.??Se, a IV-VI mixed chalcogenide. The temperature dependent (10–300 K) reflectance was measured over 40–7000 cm?ą (5–870 meV) with an extension to 15,500 cm?ą (1.92 eV) at room temperature. The reflectance was fit to the Drude-Lorentz model using a single Drude component and several Lorentz oscillators. The optical properties at the measured temperatures were estimated via Kramers-Kronig analysis as well as by the Drude-Lorentz fit. The carriers were p-type with the carrier density determined by Hall measurements. A signature of valence intraband transition is found in the low-energy optical spectra. It is found that the valence-conduction band transition energy as well as the free carrier effective mass reach minimum values at 100 K, suggesting temperature-driven band inversion in the material. Density function theory calculation for the electronic band structure also make similar predictions.

  14. Property:HostRockAge | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo,AltFuelVehicle2 Jump to: navigation, search ThisHeadquartersState Jump to:HeatRateProperty

  15. Age Inversiones in Media Ambiente AIMA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar EnergyAerodynall Countries |

  16. Energy age wind ltd Co KG | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy Electricals LtdEcowind Jump(Redirected fromTransfer-MDE Jumpage

  17. Library and Information Science Program

    E-Print Network [OSTI]

    Jiang, Huiqiang

    the professionals who will lead us through the information age: librarians, information and knowledge managers, archivists and preservation administrators, and digital content managers. As the nature and form sources and contribute to the body of basic and applied knowledge and research in the field. MLIS Pitt

  18. Minimizing Leakage Energy in FPGAs Using Intentional Post-Silicon Device Aging

    E-Print Network [OSTI]

    Wei, Sheng

    2013-01-01

    Aging Model . . . . . . . . . . . . . . . . . . . . .Aging Configuration . . . . . . . . . . . . . .Limitation . . . . . . . . . . . . . . . . . 6 Aging-based

  19. Keno Hall 

    E-Print Network [OSTI]

    H.H. Horne Co.

    2011-09-05

    and validation of all modeling techniques used was a major part of this research effort. In addition, investigating design sensitivities helped identify the parameters of primary interest. The full-core 3D models representing the prototype and large scale cores...

  20. Gracie Hall

    Broader source: Energy.gov [DOE]

    Gracie is a student representative to the board for FY 2013-14. She is a senior at Oak Ridge High School, where she is a member of the National Honor Society, the Oak Ridge High School marching and...

  1. Law Hall 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    - VI (f) :> Q; i2 120 u.. fI) E. 100 80 60, 0 50 100 150 200 250 300 350 400 450 500 1 EROSION FROM TRAILING EDGE (MILS) FIGURE 13 SOLID PARTICLE EROSION DAMAGE TO CONTROL STAGE 4 defect is for a gap to occur around only a portion... of lost performance. Figure 9 shows the increased a: 0; ? u W c >- rn f-

  2. Fredric G. Levin College of Law Spessard L. Holland Hall Center Office of the Dean PO Box 117620

    E-Print Network [OSTI]

    Sin, Peter

    Fredric G. Levin College of Law Spessard L. Holland Hall Center Office of the Dean PO Box 117620 at (352) 273-1212 or through the Privacy Office Hotline 1-866-876-HIPA. Sincerely, Robert H. Jerry, II Dean and Levin, Mabie and Levin Professor of Law #12;

  3. StrategicPlanning A Strategic Planning Town Hall event for Faculty and Staff was held on Wednesday, October 15th

    E-Print Network [OSTI]

    Sun, Yi

    StrategicPlanning A Strategic Planning Town Hall event for Faculty and Staff was held the strategic plan forward. Following are notes from the presentation and the discussion that followed: Our strategic plan will span the next eight years leading up to City College's 175th milestone

  4. arXiv:0906.4351v1[cond-mat.mes-hall]23Jun2009 Interfaces Within Graphene Nanoribbons

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    arXiv:0906.4351v1[cond-mat.mes-hall]23Jun2009 Interfaces Within Graphene Nanoribbons J Wurm1,2 , M the conductance through two types of graphene nanostructures: nanoribbon junctions in which the width changes from that experience from electron gas waveguides does not carry over to graphene nanostructures. The interior

  5. PSY/WGS 506 Psychology of Gender Spring 2013, MW 4:307:15, 736 Poe Hall

    E-Print Network [OSTI]

    Kaber, David B.

    PSY/WGS 506 ­ Psychology of Gender Spring 2013, MW 4:307:15, 736 Poe Hall Dr. Mary Wyer Poe 732 relations from a psychological perspective. The course focuses on cultural meanings attached to being readings and class discussions. 3. Applying critical thinking skills and a psychological perspective

  6. NIF-0607-13692.ppt NIF Town Hall Meeting, June 16, 2007 1 Title page -APS, Orlando, FL, November 13,

    E-Print Network [OSTI]

    13, 2007 This work performed under the auspices of the U.S. Department of Energy by Lawrence 2 The National Ignition FacilityThe National Ignition Facility Limitless Clean Energy Eye on the Cosmos Limitless Clean Energy Eye on the Cosmos #12;NIF-0607-13692.ppt NIF Town Hall Meeting, June 16

  7. Complementary spin-Hall and inverse spin-galvanic effect torques in a ferromagnet/semiconductor bilayer

    E-Print Network [OSTI]

    Skinner, T. D.; Olejnik, K.; Cunningham, L. K.; Kurebayashi, H.; Campion, R. P.; Gallagher, B. L.; Jungwirth, T.; Ferguson, A. J.

    2015-03-31

    spin Hall effect3 (SHE) is absorbed in the ferromagnet and induces the spin transfer torque4 (STT). In the other pic- ture, a non-equilibrium spin-density is generated via the relativistic inverse spin galvanic effect5 (ISGE) and induces the spin...

  8. Experimental studies of high-frequency azimuthal waves in Hall thrusters Andrei A. Litvak, Yevgeny Raitses, and Nathaniel J. Fisch

    E-Print Network [OSTI]

    Experimental studies of high-frequency azimuthal waves in Hall thrusters Andrei A. Litvak, Yevgeny 08543 Received 3 April 2003; accepted 23 October 2003; published online 5 April 2004 High-frequency impedance-matching circuit, was successfully built and calibrated. Through simultaneous high-frequency

  9. On the direct insulator-quantum Hall transition in two-dimensional electron systems in the vicinity of nanoscaled scatterers

    E-Print Network [OSTI]

    Liang, Chi-Te; Lin, Li-Hung; Chen, Kuang Yao; Lo, Shun-Tsung; Wang, Yi-Ting; Lo, Dong-Sheng; Kim, Gil-Ho; Chang, Yuan Huei; Ochiai, Yuichi; Aoki, Nobuyuki; Chen, Jeng Chung; Lin, Yiping; Huang, Chun Feng; Lin, Sheng-Di; Richie, David A

    2011-02-11

    , Nicholls JT, Frost JEF, Linfield EH, Pepper M, Ford CJB, Ritchie DA, Jones GAC, Kogan E, Kaveh M: Magnetic-field-induced insulator-quantum Hall-insulator transition in a disordered two- dimensional electron gas. J Phys Condens Matter 1994, 6:4763. 6...

  10. Transport of surface states in the bulk quantum Hall effect Department of Physics, University of California, Santa Barbara, California 93106

    E-Print Network [OSTI]

    Transport of surface states in the bulk quantum Hall effect Sora Cho Department of Physics, University of California, Santa Barbara, California 93106 Leon Balents Institute for Theoretical Physics, University of California, Santa Barbara, California 93106 Matthew P. A. Fisher Institute for Theoretical

  11. Melatonin, oxidative stress and the aging brain

    E-Print Network [OSTI]

    Bondy, SC; Sharman, EH

    2010-01-01

    markers in healthy aging and Alzheimer’s disease.Neurobiol Aging. 8. Kim R, Emi M, Tanabe K. Role ofFree radicals and brain aging. Clin Geriatr Med. 2004;20:

  12. Telomere lengthening to antagonize myocardial aging

    E-Print Network [OSTI]

    Cottage, Christopher Travis; Cottage, Christopher Travis

    2012-01-01

    targets to antagonize the aging phenotype. FIGURES Figureday Pim-wt. Figure 2.2: Cellular aging markers over time. A.stem cell and myocyte aging, heart failure, and insulin-like

  13. Fracture, aging and disease in bone

    E-Print Network [OSTI]

    Ager, J.W.; Balooch, G.; Ritchie, R.O.

    2006-01-01

    and R. O. Ritchie: Effect of aging on the toughness of humanof microstructure in the aging-related deterioration of thestudy of the effect of aging on human cortical bone J.

  14. Neural correlates of successful cognitive aging

    E-Print Network [OSTI]

    Kaup, Allison Renee

    2012-01-01

    default network" in normal aging. Cereb Cortex, 18(8), 1856-The posterior-anterior shift in aging. Cereb Cortex, 18(5),atrophy evident in healthy aging. J Neurosci, Fjell, A. M. ,

  15. Elucidating mechanisms of accelerated neurological aging

    E-Print Network [OSTI]

    Greenhall, Jennifer Anne

    2008-01-01

    C. (2005). Mechanisms of aging in senescence- accelerated2.2 Strain-specific aging gene-expression profiles…………………..C. (2005). Mechanisms of aging in senescence-accelerated

  16. AGEING & SEXING AGEING AND SEXING OF THE AFRICAN

    E-Print Network [OSTI]

    de Villiers, Marienne

    with narrow lime greel gr bases, Eving a moftled appea.rance when ihey yellow Tgrgns on the outer web lighter as the are blackish or dark brown with very thin lime plumage ages. Blackish ones liqime brown-withavariableamolntoflimeg{een the iris biown or dark brown. The legs ind on the.-fringeq 9{ttre feathers

  17. Aging analyses of aircraft wire insulation

    SciTech Connect (OSTI)

    GILLEN,KENNETH T.; CLOUGH,ROGER LEE; CELINA,MATHIAS C.; AUBERT,JAMES H.; MALONE,G. MICHAEL

    2000-05-08

    Over the past two decades, Sandia has developed a variety of specialized analytical techniques for evaluating the long-term aging and stability of cable insulation and other related materials. These techniques have been applied to cable reliability studies involving numerous insulation types and environmental factors. This work has allowed the monitoring of the occurrence and progression of cable material deterioration in application environments, and has provided insights into material degradation mechanisms. It has also allowed development of more reliable lifetime prediction methodologies. As a part of the FAA program for intrusive inspection of aircraft wiring, they are beginning to apply a battery of techniques to assessing the condition of cable specimens removed from retired aircraft. It is anticipated that in a future part of this program, they may employ these techniques in conjunction with accelerated aging methodologies and models that the authros have developed and employed in the past to predict cable lifetimes. The types of materials to be assessed include 5 different wire types: polyimide, PVC/Glass/Nylon, extruded XL-polyalkene/PVDF, Poly-X, and XL-ETFE. This presentation provides a brief overview of the main techniques that will be employed in assessing the state of health of aircraft wire insulation. The discussion will be illustrated with data from their prior cable aging studies, highlighting the methods used and their important conclusions. A few of the techniques that they employ are widely used in aging studies on polymers, but others are unique to Sandia. All of their techniques are non-proprietary, and maybe of interest for use by others in terms of application to aircraft wiring analysis. At the end of this report is a list showing some leading references to papers that have been published in the open literature which provide more detailed information on the analytical techniques for elastomer aging studies. The first step in the investigation of aircraft wiring is to evaluate the applicability of their various techniques to aircraft cables, after which they expect to identify a limited subset of techniques which are appropriate for each of the major aircraft wiring types. The techniques of initial interest in the studies of aging aircraft wire are as follows: optical microscopy; mandrel bend test; tensile test/elongation at break; density measurements; modulus profiling/(spatially-resolved micro-hardness); oxygen induction time/oxygen induction temperature (by differential scanning calorimetry); solvent-swelling/gel fraction; infrared spectroscopy (with chemical derivatization as warranted); chemiluminescence; thermo-oxidative wear-out assessment; The first two techniques are the simplest and quickest to apply; those further down the list tend to be more information rich and in some cases more sensitive, but also generally more specialized and more time consuming to run. Accordingly, the procedure will be to apply the simplest tests for purposes of preliminary screening of large numbers of samples. For any given material type, it can be expected that only a limited number of the other techniques will prove to be useful, and therefore, the more specialized techniques will be used on a limited number of selected samples. Samples of aircraft wiring have begun to be released to the authors in late April; they include in this report some limited and preliminary data on these materials.

  18. Non-uniform Aging on Super Duty Diesel Truck Aged Urea Cu/Zeolite...

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

    uniform Aging on Super Duty Diesel Truck Aged Urea CuZeolite SCR Catalysts Non-uniform Aging on Super Duty Diesel Truck Aged Urea CuZeolite SCR Catalysts CuZeolite SCR catalysts...

  19. Accelerated Aging of Polymer Composite Bridge Materials

    SciTech Connect (OSTI)

    Carlson, Nancy Margaret; Blackwood, Larry Gene; Torres, Lucinda Laine; Rodriguez, Julio Gallardo; Yoder, Timothy Scott

    1999-03-01

    Accelerated aging research on samples of composite material and candidate ultraviolet (UV) protective coatings is determining the effects of six environmental factors on material durability. Candidate fastener materials are being evaluated to determine corrosion rates and crevice corrosion effects at load-bearing joints. This work supports field testing of a 30-ft long, 18-ft wide polymer matrix composite (PMC) bridge at the Idaho National Engineering and Environmental Laboratory (INEEL). Durability results and sensor data from tests with live loads provide information required for determining the cost/benefit measures to use in life-cycle planning, determining a maintenance strategy, establishing applicable inspection techniques, and establishing guidelines, standards, and acceptance criteria for PMC bridges for use in the transportation infrastructure.

  20. Transportation, Aging and Disposal Canister System Performance...

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

    document provides specifications for selected system components of the Transportation, Aging and Disposal (TAD) canister-based system. Transportation, Aging and Disposal Canister...

  1. J2EE Instrumentation for software aging root cause application component determination with AspectJ

    E-Print Network [OSTI]

    Alonso, Javier

    J2EE Instrumentation for software aging root cause application component determination with Aspect needs appear. Particularly, availability of the information at any time and everywhere is today a common

  2. The Texas A&M AgriLife Extension Service's Aging/Gerontology program

    E-Print Network [OSTI]

    regular news releases about current trends in aging and general information about the well being of older Extension office. Other Resources Extension Resource Library The Texas A&M AgriLife Extension Service maintains a library populated with resource materials on aging, health, and many other topics

  3. Nuclear power plant Generic Aging Lessons Learned (GALL). Main report and appendix A

    SciTech Connect (OSTI)

    Kaza, K.E.; Diercks, D.R.; Holland, J.W.; Choi, S.U.

    1996-12-01

    The purpose of this generic aging lessons learned (GALL) review is to provide a systematic review of plant aging information in order to assess materials and component aging issues related to continued operation and license renewal of operating reactors. Literature on mechanical, structural, and thermal-hydraulic components and systems reviewed consisted of 97 Nuclear Plant Aging Research (NPAR) reports, 23 NRC Generic Letters, 154 Information Notices, 29 Licensee Event Reports (LERs), 4 Bulletins, and 9 Nuclear Management and Resources Council Industry Reports (NUMARC IRs) and literature on electrical components and systems reviewed consisted of 66 NPAR reports, 8 NRC Generic Letters, 111 Information Notices, 53 LERs, 1 Bulletin, and 1 NUMARC IR. More than 550 documents were reviewed. The results of these reviews were systematized using a standardized GALL tabular format and standardized definitions of aging-related degradation mechanisms and effects. The tables are included in volume s 1 and 2 of this report. A computerized data base has also been developed for all review tables and can be used to expedite the search for desired information on structures, components, and relevant aging effects. A survey of the GALL tables reveals that all ongoing significant component aging issues are currently being addressed by the regulatory process. However, the aging of what are termed passive components has been highlighted for continued scrutiny. This document is Volume 1, consisting of the executive summary, summary and observations, and an appendix listing the GALL literature review tables.

  4. Understanding aging in pentaerythritol tetranitrate

    SciTech Connect (OSTI)

    Brown, Geoffrey W; Sandstrom, Mary M; Giambra, Anna M; Archuleta, Jose G; Monroe, Deidre C

    2009-01-01

    Pentaerythritol Tetranitrate (PETN) powder is commonly used in detonators because of its sensitivity and explosive power. PETN detonation is largely determined by the average PETN particle size. This is an issue for aging and storage of weapons because PETN has a relatively high vapor pressure and its average particle size changes due to thermal energy input from the environment. PETN aging is a well known problem although the mechanism is not well understood. It is important to understand PETN aging so that predictive models can be constructed that will benefit stockpile surveillance and lifetime extension programs. PETN particles are known to coarsen over time at relatively low temperatures. Particle coarsening requires mass redistribution since decomposition causes powders to become finer as PETN mass is lost. Two possible mechanisms for mass redistribution are vapor phase transfer via sublimation-redeposition and solid-state mass transfer through surface diffusion. In this work we have examined PETN powders us ing permeability, atomic force microscopy (AFM), and optical microscopy based particle analysis. The results of these measurements lead us to a suggested coarsening mechanism that we reproduce with rudimentary simulations. The physical mechanisms used in the simulations are then used to create an empirical model of the coarsening that may be used to make predictions of PETN aging. In the future we will be measuring the vapor pressures and other physical properties of our powders to be able to make predictions using simulations.

  5. The Age of a Deer. 

    E-Print Network [OSTI]

    Ramsey, Charles W.; Shult, Milo J.

    1983-01-01

    of a Deer Charles W. Ramsey and Milo J. Shu/t Extension Wildlife Specialists The Texas A&M University System Tooth eruption and wear in deer are closely related to the age of the animal. Deer shed and replace milk teeth with permanent teeth at con...

  6. Diffusion Compton profondement virtuelle dans le Hall A au Jefferson Laboratory

    SciTech Connect (OSTI)

    Carlos Munoz Camacho

    2005-12-01

    Generalized Parton Distributions (GPDs), introduced in the late 90s, provide a universal description of hadrons in terms of the underlying degrees of freedom of Quantum Chromodynamics: quarks and gluons. GPDs appear in a wide variety of hard exclusive reactions and the advent of high luminosity accelerator facilities has made the study of GPDs accessible to experiment. Deeply Virtual Compton Scattering (DVCS) is the golden process involving GPDs. The first dedicated DVCS experiment ran in the Hall A of Jefferson Lab in Fall 2004. An electromagnetic calorimeter and a plastic scintillator detector were constructed for this experiment, together with specific electronics and acquisition system. The experiment preparation, data taking and analysis are described in this document. Results on the absolute cross section difference for opposite beam helicities provide the first measurement of a linear combination of GPDs as a function of the momentum transfer to the nucleon.

  7. Correlation between the extraordinary Hall constant and electrical resistivity minima in Co-rich metallic glasses 

    E-Print Network [OSTI]

    Majumdar, AK; Khatua, PK; Rathnayaka, KDD; Naugle, Donald G.

    2004-01-01

    . INTRODUCTION The Hall resistivity srHd in a crystalline ferromagnet is, for T!Tc, given by1 rH = R0B + m0RsMs, s1d where B is the magnetic induction and m0 is the permeability of free space. The Lorentz force acting on the charge carriers is responsible...- pendicular to the sample plane and so the demagnetization factor N.1. Thus BW =m0fHW applied+ s1?NdMW sg.m0HW applied. rH shows the typical behavior of a ferromagnet for T!Tc =368 K where rH almost saturates beyond a certain B (here 1 T) and varies...

  8. Dynamics in the quantum Hall effect and the phase diagram of graphene

    E-Print Network [OSTI]

    E. V. Gorbar; V. P. Gusynin; V. A. Miransky; I. A. Shovkovy

    2008-08-28

    The dynamics responsible for lifting the degeneracy of the Landau levels in the quantum Hall (QH) effect in graphene is studied by utilizing a low-energy effective model with a contact interaction. A detailed analysis of the solutions of the gap equation for Dirac quasiparticles is performed at both zero and nonzero temperatures. The characteristic feature of the solutions is that the order parameters connected with the QH ferromagnetism and magnetic catalysis scenarios necessarily coexist. The solutions reproduce correctly the experimentally observed novel QH plateaus in graphene in strong magnetic fields. The phase diagram of this system in the plane of temperature and electron chemical potential is analyzed. The phase transitions corresponding to the transitions between different QH plateaus in graphene are described.

  9. Extrinsic anomalous Hall effect in epitaxial Mn{sub 4}N films

    SciTech Connect (OSTI)

    Meng, M.; Wu, S. X. Ren, L. Z.; Zhou, W. Q.; Wang, Y. J.; Wang, G. L.; Li, S. W.

    2015-01-19

    Anomalous Hall effect (AHE) in ferrimagnetic Mn{sub 4}N epitaxial films grown by molecular-beam epitaxy is investigated. The longitudinal conductivity ?{sub xx} is within the superclean regime, indicating Mn{sub 4}N is a highly conducting material. We further demonstrate that the AHE signal in 40-nm-thick films is mainly due to the extrinsic contributions based on the analysis fitted by ?{sub AH}=a??{sub xx0}+b?{sub xx}{sup 2} and ?{sub AH}??{sub xx}. Our study not only provide a strategy for further theoretical work on antiperovskite manganese nitrides but also shed promising light on utilizing their extrinsic AHE to fabricate spintronic devices.

  10. D0 Silicon Upgrade: D-Zero Assembly Hall ODH Analysis

    SciTech Connect (OSTI)

    Rucinski, Russ; /Fermilab

    1997-03-12

    The ODH analysis presented here covers the high bay and assembly hall docking area of the for the D-Zero detector. It includes the STand Alone helium Refrigerator (STAR) in the building. It also includes the D-Zero detector and it's associated cryogenic and gas systems. An ODH analysis is presented which shows that the D-Zero assembly building high bay including the detector docking area is ODH class O. Probabilities, leak rates, and fatality factors are generated for all items that are sources of inert gas. The scope of analysis included the calorimeter and gas components on the detector, the helium refrigerator/liquifier components, and the future solenoid and visible light photon counter cryogenics that will be added to the D-Zero detector. The analysis demonstrates that the calorimeter and helium refrigerator systems pose no ODH hazard to personnel.

  11. Fractional Quantum Hall Filling Factors from String Theory using Toric Geometry

    E-Print Network [OSTI]

    Belhaj, A; Idrissi, M El; Manaut, B; Sebbar, A; Sedra, M B

    2015-01-01

    Using toric Cartan matrices as abelian gauge charges, we present a class of stringy fractional quantum Hall effect (FQHE) producing some recent experimental observed filling factor values. More precisely, we derive the corresponding Chern-Simons type models from M-theory compactified on four complex dimensional hyper-K\\"{a}hler manifolds X^4. These manifolds, which are viewed as target spaces of a particular N=4 sigma model in two dimensions, are identified with the cotangent bundles over intersecting 2-dimensional toric varieties V_i^2 according to toric Cartan matrices. Exploring results of string dualities, the presented FQHE can be obtained from D6-banes wrapping on such intersecting toric varieties interacting with R-R gauge fields. This string theory realization provides a geometric interpretation of the filling factors in terms of toric and Euler characteristic topological data of the compactified geometry. Concretely, explicit bilayer models are worked out in some details.

  12. Position-Momentum Duality and Fractional Quantum Hall Effect in Chern Insulators

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

    Claassen, Martin; Lee, Ching-Hua; Thomale, Ronny; Qi, Xiao-Liang; Devereaux, Thomas P

    2015-06-11

    We develop a first quantization description of fractional Chern insulators that is the dual of the conventional fractional quantum Hall (FQH) problem, with the roles of position and momentum interchanged. In this picture, FQH states are described by anisotropic FQH liquids forming in momentum-space Landau levels in a fluctuating magnetic field. The fundamental quantum geometry of the problem emerges from the interplay of single-body and interaction metrics, both of which act as momentum-space duals of the geometrical picture of the anisotropic FQH effect. We then present a novel broad class of ideal Chern insulator lattice models that act as dualsmore »of the isotropic FQH effect. The interacting problem is well-captured by Haldane pseudopotentials and affords a detailed microscopic understanding of the interplay of interactions and non-trivial quantum geometry.« less

  13. Systems and methods for cylindrical hall thrusters with independently controllable ionization and acceleration stages

    SciTech Connect (OSTI)

    Diamant, Kevin David; Raitses, Yevgeny; Fisch, Nathaniel Joseph

    2014-05-13

    Systems and methods may be provided for cylindrical Hall thrusters with independently controllable ionization and acceleration stages. The systems and methods may include a cylindrical channel having a center axial direction, a gas inlet for directing ionizable gas to an ionization section of the cylindrical channel, an ionization device that ionizes at least a portion of the ionizable gas within the ionization section to generate ionized gas, and an acceleration device distinct from the ionization device. The acceleration device may provide an axial electric field for an acceleration section of the cylindrical channel to accelerate the ionized gas through the acceleration section, where the axial electric field has an axial direction in relation to the center axial direction. The ionization section and the acceleration section of the cylindrical channel may be substantially non-overlapping.

  14. Optimized electrode placement along the channel of a Hall thruster for ion focusing

    SciTech Connect (OSTI)

    Qing, Shaowei, E-mail: qshaowei@gmail.com [Power Engineering Institute, Chongqing University, Chongqing 400044 (China); E, Peng [Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001 (China); Xia, Guangqing [State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024 (China); Tang, Ming-Chun [College of Communication Engineering, Chongqing University, Chongqing 400044 (China); Duan, Ping [School of Physics, Dalian Maritime University, Dalian 116026 (China)

    2014-01-21

    An optimal placement of the segmented electrode for increasing the lifetime of the Aton-type Hall thruster, i.e., reducing the plume divergence, is demonstrated using a 2D3V fully kinetic Particle-in-Cell method. Segmented electrodes, embedded near the ionization region of non-segmented case and biased above anode potential, lead to an increased separation between the ionization and acceleration regions and the formation of an efficient acceleration electric field configuration as potential lens. Due to this electrode placement, the sheath near the ceramic walls of the acceleration region is collapsed and an excellent ion beam focusing is demonstrated. The potential contour pockets around the electrodes and the sheath collapse phenomenon are also discussed.

  15. Refurbishment and Testing of the 1970's Era LASS Solenoid Coils for JLab's Hall D

    SciTech Connect (OSTI)

    Anumagalla, Ravi; Biallas, George; Brindza, Paul; Carstens, Thomas; Creel, Jonathan; Egiyan, Hovanes; Martin, Floyd; Qiang, Yi; Spiegel, Scot; Stevens, Mark; Wissmann, Mark

    2012-07-01

    JLab refurbished the LASS1, 1.85 m bore Solenoid, consisting of four superconducting coils to act as the principal analysis magnet for nuclear physics in the newly constructed, Hall D at Jefferson Lab. The coils, built in 1971 at Stanford Linier Accelerator Center and used a second time at the MEGA Experiment at Los Alamos, had electrical shorts and leaks to the insulating vacuum along with deteriorated superinsulation & instrumentation. Root cause diagnosis of the problems and the repair methods are described along with the measures used to qualify the vessels and piping within the Laboratory's Pressure Safety Program (mandated by 10CFR851). The extraordinary refrigerator operational methods used to utilize the obsolete cryogenic apparatus gathered for the off-line, single coil tests are described.

  16. Visualizing edge states with an atomic Bose gas in the quantum Hall regime

    E-Print Network [OSTI]

    B. K. Stuhl; H. -I Lu; L. M. Aycock; D. Genkina; I. B. Spielman

    2015-02-09

    We engineered a two-dimensional magnetic lattice in an elongated strip geometry, with effective per-plaquette flux ~4/3 times the flux quanta. We imaged the localized edge and bulk states of atomic Bose-Einstein condensates in this strip, with single lattice-site resolution along the narrow direction. Further, we observed both the skipping orbits of excited atoms traveling down our system's edges, analogues to edge magnetoplasmons in 2-D electron systems, and a dynamical Hall effect for bulk excitations. Our lattice's long direction consisted of the sites of an optical lattice and its narrow direction consisted of the internal atomic spin states. Our technique has minimal heating, a feature that will be important for spectroscopic measurements of the Hofstadter butterfly and realizations of Laughlin's charge pump.

  17. Color Glass Condensates in dense quark matter and quantum Hall states of gluons

    E-Print Network [OSTI]

    Aiichi Iwazaki

    2006-04-26

    We apply the effective theory of color glass condensate to the analysis of gluon states in dense quark matter, in which the saturation region of gluons is also present. We find that in the region two point function of gluons shows algebraic long range order. The order is completely the same as the one gluons show in the dense quark matter, which form quantum Hall states. The order leads to the vanishing of massless gluon pole. We also find that the saturation region of gluons extends from small $x$ to even large $x\\lesssim 1$ in much dense quark matter. We point out a universality that the color glass condensate is a property of hadrons at high energy and of quark matter at high baryon density.

  18. Exploration of deeply virtual Compton scattering on the neutron in the Hall A of Jefferson Laboratory

    SciTech Connect (OSTI)

    Malek Mazouz

    2006-12-08

    Generalized Parton Distributions (GPDs) are universal functions which provide a comprehensive description of hadron properties in terms of quarks and gluons. Deeply Virtual Compton Scattering (DVCS) is the simplest hard exclusive process involving GPDs. In particular, the DVCS on the neutron is mostly sensitive to E, the less constrained GPD, wich allows to access to the quark angular momentum. The first dedicated DVCS experiment on the neutron ran in the Hall A of Jefferson Lab in fall 2004. The high luminosity of the experiment and the resulting background rate recquired specific devices which are decribed in this document. The analysis methods and the experiment results, leading to preliminary constraints on the GPD E, are presented.

  19. Effects of magnetic field strength on the low frequency oscillation in Hall thrusters

    SciTech Connect (OSTI)

    Wang Chunsheng; Wei Liqiu; Ning Zhongxi; Yu Daren [Laboratory of Plasma Propulsion, Mail Box 458, Harbin Institute of Technology, Harbin 150001 (China)

    2011-01-15

    In order to study the effect of magnetic field strength on low frequency oscillation in Hall thrusters, experiments were carried out with different operating parameters. Experimental results show that the effect of magnetic field strength on the low frequency oscillation changes with operating parameters. In the decline zone of magnetoampere characteristic curve, low frequency oscillation increases with the increase of magnetic field strength at low mass flow rate, while decreases with the increase of magnetic field strength at high mass flow rate. With further experiments and numerical simulations, it is found that the change of electron current at low mass flow rate and the change of ion current at high mass flow rate account for the variations of low frequency oscillation. Finally, the physical analysis is performed.

  20. X-ray K-edge analysis of drain lines in Wilhelm Hall, Ames Laboratory

    SciTech Connect (OSTI)

    Jensen, T.; Whitmore, C. |

    1999-01-05

    From August 12--27, 1998 X-ray K-edge measurements were made on drain lines in seven rooms in Wilhelm Hall, Ames Laboratory. The purpose of these measurements was to determine the extent of thorium (and other heavy metal) contamination inside these pipes. The K-edge method is a noninvasive inspection technique that can provide accurate quantification of heavy metal contamination interior to an object. Of the seven drain lines inspected, one was found to have no significant contamination, three showed significant thorium deposits, two showed mercury contamination, and one line was found to contain mercury, thorium and uranium. The K-edge measurements were found to be consistent with readings from hand-held survey meters, and provided much greater detail on the location and amount of heavy metal contamination.