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Sample records for orientation wilson hall

  1. 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...

  2. 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

  3. 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

  4. 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...

  5. Sandia Energy - David Wilson

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

    Wilson Home David Wilson David Wilson Mechanical Engineer Department: Water Power Technologies wilson-david...

  6. 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

  7. 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...

  8. Ken Wilson: A scientific appreciation

    E-Print Network [OSTI]

    Wilczek, Frank

    This brief retrospective is an overview and celebration of Kenneth Wilson’s profound contributions to science, meant to be accessible to a broad scientific audience. Wilson’s lecture on receipt of the 1982 Nobel Prize gives ...

  9. 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

  10. 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...

  11. 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

  12. 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

  13. Category and Perceptual Learning in Subjects with Treated Wilson's Disease

    E-Print Network [OSTI]

    2010-01-01

    and Perceptual Learning in Subjects with Treated Wilson’snormal controls. The WD subjects exhibited deficits in bothand Perceptual Learning in Subjects with Treated Wilson’s

  14. 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

  15. NATIONAL SCIENCE FOUNDATION 4201 Wilson Boulevard

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    California State University, Sacramento 6000 J Street, Sacramento Hall 0230 Sacramento, CA 95819-6016 (916

  16. 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

  17. Measurability of Wilson loop operators

    E-Print Network [OSTI]

    David Beckman; Daniel Gottesman; Alexei Kitaev; John Preskill

    2001-10-22

    We show that the nondemolition measurement of a spacelike Wilson loop operator W(C) is impossible in a relativistic non-Abelian gauge theory. In particular, if two spacelike-separated magnetic flux tubes both link with the loop C, then a nondemolition measurement of W(C) would cause electric charge to be transferred from one flux tube to the other, a violation of relativistic causality. A destructive measurement of W(C) is possible in a non-Abelian gauge theory with suitable matter content. In an Abelian gauge theory, many cooperating parties distributed along the loop C can perform a nondemolition measurement of the Wilson loop operator if they are equipped with a shared entangled ancilla that has been prepared in advance. We also note that Abelian electric charge (but not non-Abelian charge) can be transported superluminally, without any accompanying transmission of information.

  18. Research Opportunities 2015-16 Prof Andy Wilson Prof Andy Wilson

    E-Print Network [OSTI]

    Rzepa, Henry S.

    Research Opportunities 2015-16 Prof Andy Wilson 1 Prof Andy Wilson A.J.Wilson@leeds.ac.uk phone details of active research projects, please visit our webpage at: http://www.chem.leeds the development of inhibitors that can be used for ligand directed labelling of the target proteins, so

  19. 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

  20. 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...

  1. Trip to Philadelphia and By Saul Wilson

    E-Print Network [OSTI]

    Wilson, W. Stephen

    Trip to Philadelphia and New York June 25th ­ 28th , 2003 By Saul Wilson With Assistance from Joyce Steeves Photos and Tourist Sections by W. Stephen Wilson #12;Page 2 Trip to Philadelphia and New York June a day had to be devoted to sightsee- ing. Philadelphia - June 23rd We left Baltimore at 7:47a

  2. 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

  3. 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.

  4. 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. Muñoz 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.

  5. Wilson Line Integrals in the Unparticle Action

    E-Print Network [OSTI]

    A. Lewis Licht

    2008-05-25

    We consider the unparticle action that is made gauge invariant by inclusion of an open Wilson line factor. In deriving vertexes from such an action it has been customary to use a form of differentiating the Wilson line originally proposed by Mandelstam. Using a simple example, we show that the Mandelstam derivative is mathematically inconsistent. We show that there are two ways to define differentiation of the Wilson line. The mathematically consistent method is to differentiate the explicit dependence of the line on the endpoint. The other method is a functional derivative and corresponds in a limiting case to the Mandelstam derivative. We also show that the only path that can be used in the Wilson line integral that leaves the unparticle action both Poincare and scale invariant is the straight line.

  6. 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."

  7. Kenneth Wilson and lattice QCD

    E-Print Network [OSTI]

    Akira Ukawa

    2015-01-21

    We discuss the physics and computation of lattice QCD, a space-time lattice formulation of quantum chromodynamics, and Kenneth Wilson's seminal role in its development. We start with the fundamental issue of confinement of quarks in the theory of the strong interactions, and discuss how lattice QCD provides a framework for understanding this phenomenon. A conceptual issue with lattice QCD is a conflict of space-time lattice with chiral symmetry of quarks. We discuss how this problem is resolved. Since lattice QCD is a non-linear quantum dynamical system with infinite degrees of freedom, quantities which are analytically calculable are limited. On the other hand, it provides an ideal case of massively parallel numerical computations. We review the long and distinguished history of parallel-architecture supercomputers designed and built for lattice QCD. We discuss algorithmic developments, in particular the difficulties posed by the fermionic nature of quarks, and their resolution. The triad of efforts toward better understanding of physics, better algorithms, and more powerful supercomputers have produced major breakthroughs in our understanding of the strong interactions. We review the salient results of this effort in understanding the hadron spectrum, the Cabibbo-Kobayashi-Maskawa matrix elements and CP violation, and quark-gluon plasma at high temperatures. We conclude with a brief summary and a future perspective.

  8. 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...

  9. 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

  10. 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

  11. 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

  12. 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.

  13. Anisotropy tuning with the Wilson flow

    E-Print Network [OSTI]

    S. Borsanyi; S. Durr; Z. Fodor; S. D. Katz; S. Krieg; T. Kurth; S. Mages; A. Schafer; K. K. Szabo

    2012-05-03

    We use the Wilson flow to define the gauge anisotropy at a given physical scale. We demonstrate the use of the anisotropic flow by performing the tuning of the bare gauge anisotropy in the tree-level Symanzik action for several lattice spacings and target anisotropies. We use this method to tune the anisotropy parameters in full QCD, where we also exploit the diminishing effect of a well chosen smearing on the renormalization of the fermion anisotropy.

  14. 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.

  15. 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.

  16. 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

  17. 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

  18. 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

  19. 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.

  20. Evolution equation for 3-quark Wilson loop operator

    E-Print Network [OSTI]

    R. E. Gerasimov; A. V. Grabovsky

    2012-12-07

    The evolution equation for the 3 quark Wilson loop operator has been derived in the leading logarithm approximation within Balitsky high energy operator expansion.

  1. Wilson and Dalton | 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 Jump to: navigation, search Name: Wilson and Dalton Place:

  2. 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

  3. 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.

  4. Construction of the Energy-Momentum Tensor for Wilson Actions

    E-Print Network [OSTI]

    H. Sonoda

    2015-09-02

    Given an arbitrary Wilson action of a real scalar field, we discuss how to construct the energy-momentum tensor of the theory. Using the exact renormalization group, we can determine the energy-momentum tensor implicitly, but we are short of obtaining an explicit formula in terms of the Wilson action.

  5. Construction of the Energy-Momentum Tensor for Wilson Actions

    E-Print Network [OSTI]

    H. Sonoda

    2015-04-11

    Given an arbitrary Wilson action of a real scalar field, we discuss how to construct the energy-momentum tensor of the theory. Using the exact renormalization group, we can determine the energy-momentum tensor implicitly, but we are short of obtaining an explicit formula in terms of the Wilson action.

  6. NLO evolution of 3-quark Wilson loop operator

    SciTech Connect (OSTI)

    Balitsky, I. [Old Dominion Univ., Norfolk, VA (United States) Dept. of Physics; Grabovsky, A. V. [Russian Academy of Sciences (RAS), Novosibirsk (Russian Federation). Budker Inst. of Nuclear Physics (BINP)

    2015-01-01

    It is well known that high-energy scattering of a meson from some hadronic target can be described by the interaction of that target with a color dipole formed by two Wilson lines corresponding to fast quark-antiquark pair. Moreover, the energy dependence of the scattering amplitude is governed by the evolution equation of this color dipole with respect to rapidity. Similarly, the energy dependence of scattering of a baryon can be described in terms of evolution of a three-Wilson-lines operator with respect to the rapidity of the Wilson lines. We calculate the evolution of the 3-quark Wilson loop operator in the next-to-leading order (NLO) and present a quasi-conformal evolution equation for a composite 3-Wilson-lines operator. We also obtain the linearized version of that evolution equation describing the amplitude of the odderon exchange at high energies.

  7. NLO evolution of 3-quark Wilson loop operator

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

    Balitsky, I.; Grabovsky, A. V.

    2015-01-07

    It is well known that high-energy scattering of a meson from some hadronic target can be described by the interaction of that target with a color dipole formed by two Wilson lines corresponding to fast quark-antiquark pair. Moreover, the energy dependence of the scattering amplitude is governed by the evolution equation of this color dipole with respect to rapidity. Similarly, the energy dependence of scattering of a baryon can be described in terms of evolution of a three-Wilson-lines operator with respect to the rapidity of the Wilson lines. We calculate the evolution of the 3-quark Wilson loop operator in themore »next-to-leading order (NLO) and present a quasi-conformal evolution equation for a composite 3-Wilson-lines operator. Thus we also obtain the linearized version of that evolution equation describing the amplitude of the odderon exchange at high energies.« less

  8. 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....

  9. 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)

  10. 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. __________________________________________________

  11. 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.

  12. Wilson flow with naive staggered quarks

    E-Print Network [OSTI]

    Saumen Datta; Sourendu Gupta; Anirban Lahiri; Andrew Lytle; Pushan Majumdar

    2015-07-03

    Scale setting for QCD with two flavours of staggered quarks is examined using Wilson flow over a factor of four change in both the lattice spacing and the pion mass. The statistics needed to keep the errors in the flow scale fixed is found to increase approximately as the inverse square of the lattice spacing. Tree level improvement of the scales t_0 and w_0 is found to be useful in most of the range of lattice spacings we explore. The scale uncertainty due to remaining lattice spacing effects is found to be about 3%. The ratio w_0/\\sqrt{t_0} is N_f dependent and we find its continuum limit to be 1.106 \\pm 0.007 (stat) \\pm 0.005 (syst) for m_\\pi w_0 \\simeq 0.3.

  13. Bob Wilson and The Birth of Fermilab

    ScienceCinema (OSTI)

    Edwin L. Goldwasser

    2010-01-08

    In the 1960?s the Lawrence Berkeley Laboratory (then The Lawrence Radiation Laboratory) submitted two proposals to build the next high energy physics research laboratory. The first included a 200 GeV accelerator and associated experimental facilities. The cost was $350 million. The Bureau of the Budget rejected that proposal as a ?budget buster?. It ruled that $250 million was the maximum that could be accepted. The second proposal was for a reduced scope laboratory that met the Bureau of the Budget?s cost limitation, but it was for a lower energy accelerator and somewhat smaller and fewer experimental facilities. The powerful Congressional Joint Committee on Atomic Energy rejected the reduced scope proposal as inadequate to provide physics results of sufficient interest to justify the cost. It was then that Bob Wilson came forth with a third proposal, coping with that ?Catch 22? and leading to the creation of Fermilab. How he did it will be the subject of this colloquium.

  14. Wilson Fermions with Four Fermion Interactions

    E-Print Network [OSTI]

    Rantaharju, Jarno; Hietanen, Ari; Pica, Claudio; Sannino, Francesco

    2015-01-01

    We present a lattice study of a four fermion theory, known as Nambu Jona-Lasinio (NJL) theory, via Wilson fermions. Four fermion interactions naturally occur in several extensions of the Standard Model as a low energy parameterisation of a more fundamental theory. In models of dynamical electroweak symmetry breaking these operators, at an effective level, are used to endow the Standard Model fermions with masses. Furthermore these operators, when sufficiently strong, can drastically modify the fundamental composite dynamics by, for example, turning a strongly coupled infrared conformal theory into a (near) conformal one with desirable features for model building. As first step, we study spontaneous chiral symmetry breaking for the lattice version of the NJL model.

  15. 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 ...

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  1. 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

  2. Foreword: Orienting Europe

    E-Print Network [OSTI]

    Göktürk, Deniz; Baer, Nicholas

    2012-01-01

    Orienting Europe The following bookemerged from “Orienting Europe,” a graduate seminar led byanalyzed constructions of Europe in moving-image media, with

  3. Rapidity evolution of Wilson lines at the next-to-leading order

    SciTech Connect (OSTI)

    Balitsky, Ian; Chirilli, Giovanni

    2013-12-01

    At high energies particles move very fast so the proper degrees of freedom for the fast gluons moving along the straight lines are Wilson-line operators - infinite gauge factors ordered along the line. In the framework of operator expansion in Wilson lines the energy dependence of the amplitudes is determined by the rapidity evolution of Wilson lines. We present the next-to-leading order hierarchy of the evolution equations for Wilson-line operators.

  4. 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.

  5. 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

  6. 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.

  7. 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

  8. Low-Lying Eigenvalues of the Wilson-Dirac Operator

    E-Print Network [OSTI]

    K. Jansen; C. Liu; H. Simma; D. Smith

    1996-08-09

    An exploratory study of the low-lying eigenvalues of the Wilson-Dirac operator and their corresonding eigenvectors is presented. Results for the eigenvalues from quenched and unquenched simulations are discussed. The eigenvectors are studied with respect to their localization properties in the quenched approximation for the cases of SU(2) and SU(3).

  9. Waste incinerator to be built on campus By GAVIN WILSON

    E-Print Network [OSTI]

    Farrell, Anthony P.

    - logical wastes. Some waste solvents and used motor oil will be recycled, where practical. Solvents fromI::---- - - . . Waste incinerator to be built on campus ~~~ By GAVIN WILSON UBC hasapplied for a permit from the provincialWasteManagement Branch tobegin construction of a new chemical waste processing

  10. Magnetospheric influence on the Moon's exosphere Jody K. Wilson,1

    E-Print Network [OSTI]

    Mendillo, Michael

    impact sources in the solar wind and Earth's magnetotail. Citation: Wilson, J. K., M. Mendillo, and H. E, on five nights of full Moon in order to test the effect of shielding the lunar surface from the solar wind considered as potential agents for the production of lunar gases: sunlight, solar wind particles

  11. Kenneth Geddes Wilson, 1936-2013, An Appreciation

    E-Print Network [OSTI]

    Kadanoff, Leo P.

    to physics via the synthesis and construction of the modern renor- malization group technique[4, 5, 6, 7 for understanding physics. Ever since the early 1970s, the tools and concepts put forward by Wilson have formed the very basis of particle physics, field theory, and condensed matter physics. These concepts include

  12. Sum Rules and Cutoff Effects in Wilson Lattice QCD

    E-Print Network [OSTI]

    Harvey B. Meyer

    2006-09-06

    We use the transfer matrix formalism to derive non-perturbative sum rules in Wilson's lattice QCD with N_f flavours of quarks. The discretization errors on these identities are treated in detail. As an application, it is shown how the sum rules can be exploited to give improved estimates of the continuum spectrum and static potential.

  13. Tim Wilson, MS, PAS Director and Livestock/Forages Agent

    E-Print Network [OSTI]

    Watson, Craig A.

    Celebration #12;1) Livestock management Improve knowledge in nutrition and reproduction to improve) Food preservation 7) Financial management 8) Leadership 9) Family Nutrition Program (FNP) 10) Life_wilson@bradfordcountyfl.gov timwilson@ufl.edu #12;Is to: develop knowledge in agriculture, human and natural resources and the life

  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. 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.

  20. 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.

  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. 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

  3. 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

  4. Wilson flow and scale setting from lattice QCD

    E-Print Network [OSTI]

    V. G. Bornyakov; R. Horsley; R. Hudspith; Y. Nakamura; H. Perlt; D. Pleiter; P. E. L. Rakow; G. Schierholz; A. Schiller; H. Stüben; J. M. Zanotti

    2015-08-24

    We give a determination of the phenomenological value of the Wilson (or gradient) flow scales t0 and w0 for 2+1 flavours of dynamical quarks. The simulations are performed keeping the average quark mass constant, which allows the approach to the physical point to be made in a controlled manner. O(a) improved clover fermions are used and together with four lattice spacings this allows the continuum extrapolation to be taken.

  5. QCD finite T transition -- Comparison between Wilson and staggered results

    E-Print Network [OSTI]

    Yasumichi Aoki; Zoltan Fodor; Sandor D. Katz; Kalman K. Szabo; Balint C. Toth

    2007-10-31

    A quantitative comparison between the finite temperature behaviour of the staggered and Wilson fermion formulations are performed. The comparison is based on a physical quantity that is expected to be quite sensitive to the fermionic features of the action. For that purpose we use the height of the peak for $d\\chi_s/dT$, where $\\chi_s$ is the quark number susceptibility.

  6. Experimental reconstruction of Wilson lines in Bloch bands

    E-Print Network [OSTI]

    Tracy Li; Lucia Duca; Martin Reitter; Fabian Grusdt; Eugene Demler; Manuel Endres; Monika Schleier-Smith; Immanuel Bloch; Ulrich Schneider

    2015-09-07

    Topology and geometry are essential to our understanding of modern physics, underlying many foundational concepts from a variety of fields. In condensed matter systems, the electronic properties of a solid are determined not only by the scalar dispersion of the bands, but also by the geometry of the band eigenstates. While this information is encoded in the Berry connection and the corresponding Berry phase in the specific case of a single band, the geometry of general multi-band systems is described by the matrix-valued Wilczek-Zee connection and the corresponding Wilson lines. Whereas Berry phases have been directly observed in Bloch bands, Wilson lines have solely been employed as a theoretical construct. Here, we report on the realization of strong-force dynamics in Bloch bands that are described by Wilson lines. The resulting evolution of band populations is purely geometric in origin and can directly reveal both the geometric structure and dispersion of the bands. Our techniques enable a full determination of band eigenstates, Berry curvature, and topological invariants, including Chern and $Z_2$ numbers.

  7. Supersymmetric Wilson Loops in N=4 Super Chern-Simons-matter Theory

    E-Print Network [OSTI]

    Ouyang, Hao; Zhang, Jia-ju

    2015-01-01

    We investigate the supersymmetric Wilson loops in d=3 N=4 super Chern-Simons-matter theory obtained from non-chiral orbifold of ABJM theory. We work in both the Minkowski spacetime and Euclidean space, and we construct the 1/4 and 1/2 BPS Wilson loops. We also give a complete proof that the difference between 1/4 and 1/2 Wilson loops are Q-exact with Q being some supercharge preserved by both the 1/4 and 1/2 Wilson loops. This is important in applying the localization techniques to compute the vacuum expectation values of Wilson loops. We also study the M-theory dual of the 1/2 BPS circular Wilson loop.

  8. Supersymmetric Wilson loops in N=4 super Chern-Simons-matter theory

    E-Print Network [OSTI]

    Hao Ouyang; Jun-Bao Wu; Jia-ju Zhang

    2015-12-03

    We investigate the supersymmetric Wilson loops in $d=3$ $\\mathcal{N}=4$ super Chern-Simons-matter theory obtained from non-chiral orbifold of ABJM theory. We work in both Minkowski spacetime and Euclidean space, and we construct 1/4 and 1/2 BPS Wilson loops. We also provide a complete proof that the difference between 1/4 and 1/2 Wilson loops is $Q$-exact with $Q$ being some supercharge that is preserved by both the 1/4 and 1/2 Wilson loops. This plays an important role in applying the localization techniques to compute the vacuum expectation values of Wilson loops. We also study the M-theory dual of the 1/2 BPS circular Wilson loop.

  9. 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

  10. 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.

  11. 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 ...

  12. 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

  13. Review: Shadow and Shelter: The Swamp in Southern Culture by Anthony Wilson

    E-Print Network [OSTI]

    Piselli, Kathy

    2007-01-01

    for academic and larger public libraries. Kathy Piselli,Atlanta Fulton Public Library, One Margaret Mitchell SqPiselli Atlanta-Fulton Public Library, USA Anthony Wilson.

  14. 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

  15. Wilson Hot Spring Geothermal Area | 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 EISTJThinWarsaw,WhatUtilityRateNamingHelperVirginia:WillowWilmontWilson

  16. City of Wilson, North Carolina (Utility Company) | 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 SECTIONRobertsdale, Alabama (Utility Company) Jump to: navigation,Vineland, NewCity ofWilson, North

  17. WILSON-BAPPU EFFECT: EXTENDED TO SURFACE GRAVITY

    SciTech Connect (OSTI)

    Park, Sunkyung; Kang, Wonseok; Lee, Jeong-Eun; Lee, Sang-Gak E-mail: wskang@khu.ac.kr E-mail: sanggak@snu.ac.kr

    2013-10-01

    In 1957, Wilson and Bappu found a tight correlation between the stellar absolute visual magnitude (M{sub V} ) and the width of the Ca II K emission line for late-type stars. Here, we revisit the Wilson-Bappu relationship (WBR) to claim that the WBR can be an excellent indicator of stellar surface gravity of late-type stars as well as a distance indicator. We have measured the width (W) of the Ca II K emission line in high-resolution spectra of 125 late-type stars obtained with the Bohyunsan Optical Echelle Spectrograph and adopted from the Ultraviolet and Visual Echelle Spectrograph archive. Based on our measurement of the emission line width (W), we have obtained a WBR of M{sub V} = 33.76 - 18.08 log W. In order to extend the WBR to being a surface gravity indicator, stellar atmospheric parameters such as effective temperature (T{sub eff}), surface gravity (log g), metallicity ([Fe/H]), and micro-turbulence ({xi}{sub tur}) have been derived from self-consistent detailed analysis using the Kurucz stellar atmospheric model and the abundance analysis code, MOOG. Using these stellar parameters and log W, we found that log g = -5.85 log W+9.97 log T{sub eff} - 23.48 for late-type stars.

  18. Nathan R. Wilson and Mriganka Sur Determinants of Synaptic and Circuit Plasticity

    E-Print Network [OSTI]

    Sur, Mriganka

    148 Nathan R. Wilson and Mriganka Sur Determinants of Synaptic and Circuit Plasticity 7 Determinants of Synaptic and Circuit Plasticity in the Cerebral Cortex Implications for Neurodevelopmental Disorders Nathan R. Wilson and Mriganka Sur "Cortical plasticity" encompasses a broad set of mechanisms

  19. 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

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

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

  2. 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 ...

  3. A review of "Ritual and Conflict: The Social Relations of Childbirth in Early Modern England" Adrian Wilson 

    E-Print Network [OSTI]

    Weaver, Karol Kovalovich

    2014-01-01

    evolution toward royalist and parliamentary polarization. Adrian Wilson. Ritual and Conflict: The Social Relations of Childbirth in Early Modern England. Farnham: Ashgate, 2013. vii + 261 pp. $124.95. Review by karol kovalovich weaver, susquehanna... university. Adrian Wilson’s Ritual and Conflict: The Social Relations of Child- birth in Early Modern England considers the social networks that shaped childbirth in seventeenth-century England. Wilson looks at the “relationships, institutions, and customs...

  4. 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.

  5. 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

  6. 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

  7. 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

  8. 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.

  9. 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.

  10. 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.

  11. 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

  12. 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

  13. QCD thermodynamics with continuum extrapolated Wilson fermions II

    E-Print Network [OSTI]

    Szabolcs Borsanyi; Stephan Durr; Zoltan Fodor; Christian Holbling; Sandor D. Katz; Stefan Krieg; Daniel Nogradi; Kalman K. Szabo; Balint C. Toth; Norbert Trombitas

    2015-07-13

    We continue our investigation of 2+1 flavor QCD thermodynamics using dynamical Wilson fermions in the fixed scale approach. Two additional pion masses, approximately 440 MeV and 285 MeV, are added to our previous work at 545 MeV. The simulations were performed at 3 or 4 lattice spacings at each pion mass. The renormalized chiral condensate, strange quark number susceptibility and Polyakov loop is obtained as a function of the temperature and we observe a decrease in the light chiral pseudo-critical temperature as the pion mass is lowered while the pseudo-critical temperature associated with the strange quark number susceptibility or the Polyakov loop is only mildly sensitive to the pion mass. These findings are in agreement with previous continuum results obtained in the staggered formulation.

  14. QCD thermodynamics with Wilson quarks at large kappa

    E-Print Network [OSTI]

    Tom Blum; Thomas A. DeGrand; Carleton DeTar; Steven Gottlieb; A. Hasenfratz; Leo Karkkainen; D. Toussaint; R. L. Sugar

    1994-04-12

    We have extended our study of the high temperature transition with two flavors of Wilson quarks on 12^3 x 6 lattices to kappa=0.19. We have also performed spectrum calculations on 12^3 x 24 lattices at kappa=0.19 to find the physical lattice spacing and quark mass. At this value of kappa the transition is remarkable in that the plaquette and psi-bar-psi show a large discontinuity while the Polyakov loop changes very little. This and several other features of the transition are more suggestive of a bulk transition than a transition to a quark-gluon plasma. However, if the temperature is estimated using the rho mass as a standard, the result is about 150 MeV, in agreement with the value found for the thermal transition with Kogut-Susskind quarks. uuencoded compressed Postscript file

  15. Passive orientation apparatus

    DOE Patents [OSTI]

    Spletzer, Barry L. (Albuquerque, NM); Fischer, Gary J. (Albuquerque, NM); Martinez, Michael A. (Albuquerque, NM)

    2001-01-01

    An apparatus that can return a payload to a known orientation after unknown motion, without requiring external power or complex mechanical systems. The apparatus comprises a faceted cage that causes the system to rest in a stable position and orientation after arbitrary motion. A gimbal is mounted with the faceted cage and holds the payload, allowing the payload to move relative to the stable faceted cage. The payload is thereby placed in a known orientation by the interaction of gravity with the geometry of the faceted cage, the mass of the system, and the motion of the payload and gimbal. No additional energy, control, or mechanical actuation is required. The apparatus is suitable for use in applications requiring positioning of a payload to a known orientation after arbitrary or uncontrolled motion, including remote sensing and mobile robot applications.

  16. 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

  17. ORIENTATION RELATIONSHIPS IN PRECIPITATION SYSTEMS

    E-Print Network [OSTI]

    Dahmen, U.

    2013-01-01

    ORIENTATION RELATIONSHIPS IN PRECIPITATION SYSTEMS U. DahmenOrientation Relationships in Precipitation Systems U. Dahmenorientation relationships in precipitation systems b~c/hcp a

  18. 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

  19. 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

  20. 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

  1. 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 $\

  2. 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

  3. 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

  4. 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

  5. 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.

  6. Higher Rank Wilson Loops in N = 2* Super-Yang-Mills Theory

    E-Print Network [OSTI]

    Xinyi Chen-Lin; Konstantin Zarembo

    2015-02-13

    The N=2* Super-Yang-Mills theory (SYM*) undergoes an infinite sequence of large-N quantum phase transitions. We compute expectation values of Wilson loops in k-symmetric and antisymmetric representations of the SU(N) gauge group in this theory and show that the same phenomenon that causes the phase transitions at finite coupling leads to a non-analytic dependence of Wilson loops on k/N when the coupling is strictly infinite, thus making the higher-representation Wilson loops ideal holographic probes of the non-trivial phase structure of SYM*.

  7. 1/2-BPS Wilson Loops and Vortices in ABJM Model

    E-Print Network [OSTI]

    Lee, Ki-Myeong

    2010-01-01

    We explore the low-energy dynamics of 1/2-BPS heavy particles coupled to the ABJM model via the Higgsing of M2-branes, with focus on physical understanding of the recently discovered 1/2-BPS Wilson loop operators. The low-energy theory of 1/2-BPS heavy particles turns out to have the U(N|N) supergauge symmetry, which explains the novel structure of the 1/2-BPS Wilson loop operator as a holonomy of a U(N|N) superconnection. We show that the supersymmetric transformation of the Wilson loop operator can be identified as a fermionic supergauge transformation, which leads to their invariance under half of the supersymmetry. We also argue that 1/2-BPS Wilson loop operators appear as 1/2-BPS vortices with vorticity 1/k. Such a vortex can be naturally interpreted as a membrane wrapping the Z_k cycle once, or type IIA fundamental string.

  8. 1/2-BPS Wilson Loops and Vortices in ABJM Model

    E-Print Network [OSTI]

    Ki-Myeong Lee; Sungjay Lee

    2010-06-29

    We explore the low-energy dynamics of 1/2-BPS heavy particles coupled to the ABJM model via the Higgsing of M2-branes, with focus on physical understanding of the recently discovered 1/2-BPS Wilson loop operators. The low-energy theory of 1/2-BPS heavy particles turns out to have the U(N|N) supergauge symmetry, which explains the novel structure of the 1/2-BPS Wilson loop operator as a holonomy of a U(N|N) superconnection. We show that the supersymmetric transformation of the Wilson loop operator can be identified as a fermionic supergauge transformation, which leads to their invariance under half of the supersymmetry. We also argue that 1/2-BPS Wilson loop operators appear as 1/2-BPS vortices with vorticity 1/k. Such a vortex can be naturally interpreted as a membrane wrapping the Z_k cycle once, or type IIA fundamental string.

  9. Writing Home: The Post Colonial Dialogue of Athol Fugard and August Wilson

    E-Print Network [OSTI]

    Prece, Paul Michael

    2008-07-31

    's appearance as an American playwright in the early 1980's began a dramatic chronicle that re-visions American life in the twentieth century, after slavery and emancipation, through African American eyes. Wilson's and Fugard's writings mirror one another...

  10. Heat treatment optimization in the manufacture of Wilson Rockwell steel hardness test blocks

    E-Print Network [OSTI]

    Tan, Vincent Tandean

    2009-01-01

    The heat-treatment process in the manufacture of Wilson Rockwell steel hardness test blocks often produces parts which are inconsistent in the mean hardness and hardness uniformity. In this thesis, the sources of variation ...

  11. Eigenvalue repulsion in an effective theory of SU(2) Wilson lines in three dimensions

    E-Print Network [OSTI]

    Adrian Dumitru; Dominik Smith

    2012-07-04

    We perform simulations of an effective theory of SU(2) Wilson lines in three dimensions. We include a non-perturbative "fuzzy-bag" contribution which is added to the one-loop perturbative potential for the Wilson line. We confirm that, at moderately weak coupling, this leads to eigenvalue repulsion in a finite region above the deconfining phase transition which shrinks in the extreme weak-coupling limit. A non-trivial Z(N) symmetric vacuum arises in the confined phase.

  12. QCD at nonzero density and canonical partition functions with Wilson fermions

    SciTech Connect (OSTI)

    Alexandru, Andrei; Wenger, Urs

    2011-02-01

    We present a reduction method for Wilson-Dirac fermions with nonzero chemical potential which generates a dimensionally reduced fermion matrix. The size of the reduced fermion matrix is independent of the temporal lattice extent and the dependence on the chemical potential is factored out. As a consequence the reduced matrix allows a simple evaluation of the Wilson fermion determinant for any value of the chemical potential and hence the exact projection to the canonical partition functions.

  13. 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

  14. 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 \

  15. Orientation Parking Student Parking

    E-Print Network [OSTI]

    Anderson, Paul R.

    Orientation Parking Student Parking: The Student Parking Lot is located on the corner of Lockland Bridge, take the 1st left turn on to Lockland Avenue. The Student Parking Lot entrance on to Lockland Avenue (before I-40 Bridge). The Student Parking Lot entrance will be on the right. Once you have

  16. Computing Facilities Orientation

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Computing Facilities Orientation September, 2014 #12;Introductions Jason Simpson ­ Manager Computing Facilities Use Policy The Computing facilities are a shared resource for all Bren MESM students Respect the work environment of other students Protect the computer equipment and resources provided You

  17. Geography MA Program Orientation

    E-Print Network [OSTI]

    Mower, James E.

    Geography MA Program Orientation Department of Geography and Planning University at Albany #12; 36/thesis #12;Specialization Tracks Human Geography Physical Geography Geographic Information Systems See of Geography and Planning faculty #12;The Comprehensive Exam The "comps" are often given near the end

  18. 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...

  19. 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...

  20. 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...

  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 Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  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 Director Technology Transfer (212) 327-7095 tsuprapto@rockefeller.edu #12;

  3. 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.

  4. 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.

  5. 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.

  6. 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 ...

  7. Curriculum Orientations of Virtual Teachers

    E-Print Network [OSTI]

    Singleton, Nicole Y.

    2013-08-31

    This study explored the curriculum orientation preferences of K-12 public school teachers who provided instruction in virtual settings (n=47) in a midwestern state. Curriculum orientations were explored using a mixed-methods design. Quantitative...

  8. Goal-oriented hardware design

    E-Print Network [OSTI]

    Chau, Man Ping Grace

    2008-01-01

    This thesis presents Fide, a hardware design system that uses Goal-oriented programming. Goal-oriented programming is a programming framework to specify open-ended decision logic. This approach relies on two fundamental ...

  9. 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

  10. Orientation dependence of Casimir forces

    SciTech Connect (OSTI)

    Emig, T. [Institut fuer Theoretische Physik, Universitaet zu Koeln, Zuelpicher Strasse 77, 50937 Koeln (Germany); Laboratoire de Physique Theorique et Modeles Statistiques, Universite Paris-Sud, CNRS UMR 8626, 91405 Orsay (France); Graham, N. [Department of Physics, Middlebury College, Middlebury, Vermont 05753 (United States); Jaffe, R. L. [Department of Physics, Center for Theoretical Physics, and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Kardar, M. [Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

    2009-05-15

    The Casimir interaction between two objects, or between an object and a plane, depends on their relative orientations. We make these angular dependences explicit by considering prolate or oblate spheroids. The variation with orientation is calculated exactly at asymptotically large distances for the electromagnetic field and at arbitrary separations for a scalar field. For a spheroid in front of a mirror, the leading term is orientation independent, and we find the optimal orientation from computations at higher order.

  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. 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.

  11. 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. __________________________________________________

  12. Renormalisation of the energy-momentum tensor in scalar field theory using the Wilson flow

    E-Print Network [OSTI]

    Francesco Capponi; Luigi Del Debbio; Susanne Ehret; Roberto Pellegrini; Antonio Rago

    2015-12-09

    A non-perturbative renormalisation prescription for the energy-momentum tensor, based on space-time symmetries along the Wilson flow, has been proposed recently in the context of 4-dimensional gauge theories. We extend this construction to the case of a scalar field theory, and investigate its numerical feasibility by studying Ward identities in 3-dimensional scalar field theory. After introducing the Wilson flow for the scalar field theory we discuss its renormalisation properties and the determination of the renormalisation constants for the energy-momentum tensor.

  13. Light hadron spectrum---MILC results with the Kogut-Susskind and Wilson actions

    E-Print Network [OSTI]

    MILC Collaboration; Claude Bernard; Tom Blum; Carleton DeTar; Steven Gottlieb; Urs M. Heller; Jim Hetrick; Craig McNeile; Kari Rummukainen; Bob Sugar; Doug Toussaint; Matthew Wingate

    1997-07-15

    We present the current status of our ongoing calculations of the light hadron spectrum with both Kogut-Susskind (KS) and Wilson quarks in the valence or quenched approximation. We discuss KS quarks first and find that the chiral extrapolation is potentially the biggest source of systematic error. For the Wilson case, we focus on finite volume and source size effects at 6/g^2=5.7. We find no evidence to support the claim that there is a finite volume effect between N_s=16 and 24 of approximately 5%.

  14. Fermilab Today

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

    and the emergency communication center in Wilson Hall will have auxiliary power, cooling and limited networking during the outage. All Wilson Hall occupants should turn...

  15. Medical Physiology Online (MPO) http://www.medicalphysiologyonline.org Wilson BJ, Hart GLW, Parcell AC. Cardiac Inter-Beat Interval Complexity is Influenced by Physical; Activity. Medical

    E-Print Network [OSTI]

    Hart, Gus

    Medical Physiology Online (MPO) http://www.medicalphysiologyonline.org Wilson BJ, Hart GLW, Parcell. Wilson 1 , Gus L. W. Hart 2 , and Allen C. Parcell 3 1 Department of Recreation Management and Youth://www.medicalphysiologyonline.org Wilson BJ, Hart GLW, Parcell AC. Cardiac Inter-Beat Interval Complexity is Influenced by Physical

  16. Orientation filtering for crystalline films

    DOE Patents [OSTI]

    Smith, Henry I. (Sudbury, MA); Atwater, Harry A. (Somerville, MA); Thompson, Carl V. (Watertown, MA); Geis, Michael W. (Acton, MA)

    1986-12-30

    A substrate is coated with a film to be recrystallized. A pattern of crystallization barriers is created in the film, for example, by etching voids in the film. An encapsulation layer is generally applied to protect the film, fill the voids and otherwise enhance a recrystallization process. Recrystallization is carried out such that certain orientations pass preferentially through the barrier, generally as a result of growth-velocity anisotropy. The result is a film of a specific predetermined crystallographic orientation, a range of orientations or a set of discrete orientations.

  17. 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.

  18. 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.

  19. Low-lying Eigenvalues of the improved Wilson-Dirac Operator in QCD

    E-Print Network [OSTI]

    Hubert Simma; Douglas Smith

    1998-01-20

    The spectral flow of the low-lying eigenvalues of the improved and unimproved Wilson-Dirac operator is studied on instanton-like configurations and on thermalized quenched configurations at various $\\beta$-values and lattice sizes. We also investigate the space-time localisation and chirality of the corresponding eigenvectors.

  20. Oil Price Trackers Inspired by Immune Memory William Wilson , Phil Birkin , and Uwe Aickelin

    E-Print Network [OSTI]

    Aickelin, Uwe

    Oil Price Trackers Inspired by Immune Memory William Wilson , Phil Birkin , and Uwe Aickelin School concepts for an immune inspired algorithm to evaluate and predict oil price time se- ries data insight into the properties of the crude oil market. 1 Introduction The investigation of time series data

  1. Wilson cycles, tectonic inheritance, and rifting of the North American Gulf of Mexico continental margin

    E-Print Network [OSTI]

    Huerta, Audrey D.

    Wilson cycles, tectonic inheritance, and rifting of the North American Gulf of Mexico continental, Fort Collins, Colorado 80523, USA ABSTRACT The tectonic evolution of the North Amer- ican Gulf of Mexico margin, including the Interior Salt Basin, outboard unextended Wiggins arch, and an unusually

  2. Wilson Bull., 112(4), 2000, pp. 457466 SEXUAL SIZE DIMORPHISM OF THE MUSK DUCK

    E-Print Network [OSTI]

    Afton, Alan D.

    457 Wilson Bull., 112(4), 2000, pp. 457­466 SEXUAL SIZE DIMORPHISM OF THE MUSK DUCK KEVIN G. McCRACKEN,1, 2, 3, 4, 5 DAVID C. PATON, 2 AND ALAN D. AFTON3 ABSTRACT.--We examined sexual size dimorphism-displaying species, Musk Ducks exhibit extreme sexual size di- morphism in addition to structural dimorphism. Body

  3. An Input-Output Analysis of Maine's Fisheries HUGH BRIGGS, RALPH TOWNSEND, and JAMES WILSON

    E-Print Network [OSTI]

    An Input-Output Analysis of Maine's Fisheries HUGH BRIGGS, RALPH TOWNSEND, and JAMES WILSON Lobster traps at Round Pond harbor in Maine. State of Maine Development Office photograph. Introduction Since experienced a substantial revitaliza- tion. Maine, perhaps even more than the rest of New England, has rapidly

  4. A Tool for Creating and Parallelizing Bioinformatics Pipelines Chenggang Yu and Paul A. Wilson

    E-Print Network [OSTI]

    A Tool for Creating and Parallelizing Bioinformatics Pipelines Chenggang Yu and Paul A. Wilson US pipelines enable life scientists to require effective parallelization for a pipeline to provide effectively of and databases. The huge amount of data and time individual programs into a pipeline and parallelization

  5. Mechanisms for the formation of benzene in the atmosphere of Titan E. H. Wilson1

    E-Print Network [OSTI]

    Atreya, Sushil

    Mechanisms for the formation of benzene in the atmosphere of Titan E. H. Wilson1 and S. K. Atreya (PAHs) are important interstellar species, and their precursor benzene (C6H6) has been detected in our solar system. In this study the possibility of benzene formation in the atmosphere of Titan

  6. Titan's Carbon Budget and the Case of the Missing Ethane Eric H. Wilson*,,

    E-Print Network [OSTI]

    Atreya, Sushil

    Titan's Carbon Budget and the Case of the Missing Ethane Eric H. Wilson*,,§ and Sushil K. Atreya more questions. One of these questions involves the lack of large reservoirs of ethane that were of methane, and the role that ethane condensation plays in this budget. Model results show that 40

  7. Linear theory for optimal control of molecular wave packets Jianshu Cao and Kent R. Wilson

    E-Print Network [OSTI]

    Cao, Jianshu

    Linear theory for optimal control of molecular wave packets Jianshu Cao and Kent R. Wilson proposals for the quantum control of matter have been suggested 1­7 , among which optimal control theory has-0339 Received 14 August 1996 A linear theory for optimizing optical fields to achieve a molecular configuration

  8. Thermodynamics in 2+1 flavor QCD with improved Wilson quarks by the fixed scale approach

    E-Print Network [OSTI]

    T. Umeda; S. Aoki; S. Ejiri; T. Hatsuda; K. Kanaya; Y. Maezawa; H. Ohno

    2012-12-06

    We study thermodynamic properties of 2+1 flavor QCD with improved Wilson quarks coupled with the RG improved Iwasaki glue, using the fixed scale approach. We present the results for the equation of state, renormalized Polyakov loop, and chiral condensate.

  9. Some Like it Hot? Thermal Feedback for Mobile Devices Graham Wilson, Martin Halvey, Stephen A. Brewster

    E-Print Network [OSTI]

    Brewster, Stephen

    perception and this is not the focus of this paper. Fundamental HCI research needs to be conducted we focus on in this paper. There are many potential uses for thermal feedback; the following usageSome Like it Hot? Thermal Feedback for Mobile Devices Graham Wilson, Martin Halvey, Stephen A

  10. Wilson Bull., 108(4), 1996, pp. 662-672 MIGRATION ROUTES OF THE WESTERN SANDPIPER

    E-Print Network [OSTI]

    Sandercock, Brett K.

    Wilson Bull., 108(4), 1996, pp. 662-672 MIGRATION ROUTES OF THE WESTERN SANDPIPER ROBERTW. BUTLER, Mexico, British Columbia, and Alaska. Ninety-five sightings were made in states and provinces along Peru were seen east of the Rocky Mountains. We propose that most Western Sandpipers migrate from

  11. Hearing the word Wilson Poon, St. Peter's, Luton Place, Edinburgh, 15th

    E-Print Network [OSTI]

    Poon, Wilson

    1 Hearing the word Wilson Poon, St. Peter's, Luton Place, Edinburgh, 15th November 2009 (Bible Sunday) Text: Nehemiah 8:1-12, 1 Thessalonians 5:12-28, Luke 4:16-30 Thank you Lord for your Word to us aloud, to the whole congregation. In other words, the oldest part of the New Testament was a document

  12. DENSE MATTER IN LASER DRIVEN FUSION ! LABORATORY EXPERIMENTS R.L. Mc Crory and J. Wilson

    E-Print Network [OSTI]

    Boyer, Edmond

    irradiation to heat and compress a target containing thermonuclear fuel to fusion conditions. This is stillDENSE MATTER IN LASER DRIVEN FUSION ! LABORATORY EXPERIMENTS R.L. Mc Crory and J. Wilson Laboratory. The high power lasers in quaestion were constructed with laser fusion studies as the goal, i

  13. The Wilson Journal of Ornithology 122(2):385387, 2010 Yellow Rails Wintering in Oklahoma

    E-Print Network [OSTI]

    Butler, Christopher J.

    The Wilson Journal of Ornithology 122(2):385­387, 2010 Yellow Rails Wintering in Oklahoma discovered to migrate through southeastern Oklahoma in small numbers during fall with a few records through Mar 2009) to Red Slough Wildlife Management Area in McCurtain County (Oklahoma) to catch and band

  14. Price Trackers Inspired by Immune Memory William O. Wilson*, Phil Birkin* and Uwe Aickelin*

    E-Print Network [OSTI]

    Aickelin, Uwe

    Price Trackers Inspired by Immune Memory William O. Wilson*, Phil Birkin* and Uwe Aickelin* wow. In this paper we outline initial concepts for an immune in- spired algorithm to evaluate price time series data and mutation, with each member attempting to map to trends in price movements. Successful trackers feed

  15. D-branes, Wilson Bags, and Coherent Topological Charge Structure in QCD

    E-Print Network [OSTI]

    H. B. Thacker

    2006-10-06

    Monte Carlo studies of pure glue SU(3) gauge theory using the overlap-based topological charge operator have revealed a laminar structure in the QCD vacuum consisting of extended, thin, coherent, locally 3-dimensional sheets of topological charge embedded in 4D space, with opposite sign sheets interleaved. Studies of localization properties of Dirac eigenmodes have also shown evidence for the delocalization of low-lying modes on effectively 3-dimensional surfaces. In this talk, I review some theoretical ideas which suggest the possibility of 3-dimensionally coherent topological charge structure in 4-dimensional gauge theory and provide a possible interpretation of the observed structure. I begin with Luscher's ``Wilson bag'' integral over the 3-index Chern-Simons tensor. The analogy with a Wilson loop as a charged world line in 2-dimensional $CP^{N-1}$ sigma models suggests that the Wilson bag surface represents the world volume of a physical membrane. The large-N chiral Lagrangian arguments of Witten also indicate the existence of multiple ``k-vacuum'' states with discontinuous transitions between k-vacua at $\\theta=$ odd multiples of $\\pi$. The domain walls between these vacua have the properties of a Wilson bag surface. Finally, I review the AdS/CFT duality view of $\\theta$ dependence in QCD. The dual realtionship between topological charge in gauge theory and Ramond-Ramond charge in type IIA string theory suggests that the coherent topological charge sheets observed on the lattice are the holographic image of wrapped D6 branes.

  16. Asymptotic scaling corrections in QCD with Wilson fermions from the 3-loop average plaquette

    E-Print Network [OSTI]

    B. Alles; A. Feo; H. Panagopoulos

    1998-01-23

    We calculate the 3-loop perturbative expansion of the average plaquette in lattice QCD with N_f massive Wilson fermions and gauge group SU(N). The corrections to asymptotic scaling in the corresponding energy scheme are also evaluated. We have also improved the accuracy of the already known pure gluonic results at 2 and 3 loops.

  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. Bird orientation: compensation for wind

    E-Print Network [OSTI]

    Thorup, Kasper

    Bird orientation: compensation for wind drift in migrating raptors is age dependent Kasper Thorup1 14.04.03 Despite the potentially strong effect of wind on bird orientation, our understanding of how wind drift affects migrating birds is still very limited. Using data from satellite-based radio

  17. Davis Field Water Tower

    E-Print Network [OSTI]

    Erway, Jennifer

    Reynolds Library Starbucks 7A. Wilson Wing 8. Olin Physical Laboratory 9. Salem Hall 10. Winston Hall 11

  18. Device Oriented Project Controller

    SciTech Connect (OSTI)

    Dalesio, Leo; Kraimer, Martin

    2013-11-20

    This proposal is directed at the issue of developing control systems for very large HEP projects. A de-facto standard in accelerator control is the Experimental Physics and Industrial Control System (EPICS), which has been applied successfully to many physics projects. EPICS is a channel based system that requires that each channel of each device be configured and controlled. In Phase I, the feasibility of a device oriented extension to the distributed channel database was demonstrated by prototyping a device aware version of an EPICS I/O controller that functions with the current version of the channel access communication protocol. Extensions have been made to the grammar to define the database. Only a multi-stage position controller with limit switches was developed in the demonstration, but the grammar should support a full range of functional record types. In phase II, a full set of record types will be developed to support all existing record types, a set of process control functions for closed loop control, and support for experimental beam line control. A tool to configure these records will be developed. A communication protocol will be developed or extensions will be made to Channel Access to support introspection of components of a device. Performance bench marks will be made on both communication protocol and the database. After these records and performance tests are under way, a second of the grammar will be undertaken.

  19. Magnetic and transport properties of Mn{sub 2}CoAl oriented films

    SciTech Connect (OSTI)

    Jamer, Michelle E.; Assaf, Badih A.; Devakul, Trithep; Heiman, Don

    2013-09-30

    The structure, magnetic, and transport properties of thin films of the Heusler ferrimagnet Mn{sub 2}CoAl have been investigated for properties related to spin gapless semiconductors. Oriented films were grown by molecular beam epitaxy on GaAs substrates and the structure was found to transform from tetragonal to cubic for increasing annealing temperature. The anomalous Hall resistivity is found to be proportional to the square of the longitudinal resistivity and magnetization expected for a topological Berry curvature origin. A delicate balance of the spin-polarized carrier type when coupled with voltage gate-tuning could significantly impact advanced electronic devices.

  20. Freely oriented portable superconducting magnet

    DOE Patents [OSTI]

    Schmierer, Eric N. (Los Alamos, NM); Prenger, F. Coyne (Los Alamos, NM); Hill, Dallas D. (Los Alamos, NM)

    2010-01-12

    A freely oriented portable superconducting magnet is disclosed. Coolant is supplied to the superconducting magnet from a repository separate from the magnet, enabling portability of the magnet. A plurality of support assemblies structurally anchor and thermally isolate the magnet within a thermal shield. A plurality of support assemblies structurally anchor and thermally isolate the thermal shield within a vacuum vessel. The support assemblies restrain movement of the magnet resulting from energizing and cooldown, as well as from changes in orientation, enabling the magnet to be freely orientable.

  1. 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...

  2. J. Esper S. G. Shiyatov V. S. Mazepa R. J. S. Wilson D. A. Graybill G. Funkhouser

    E-Print Network [OSTI]

    @wsl.ch S. G. Shiyatov Æ V. S. Mazepa Institute of Plant and Animal Ecology, Ural Division of Russian Academy of Sciences, 8 Marta Street 202, 620144 Ekaterinburg, Russia R. J. S. Wilson School of Geo

  3. Position and orientation tracking system

    DOE Patents [OSTI]

    Burks, Barry L. (Oak Ridge, TN); DePiero, Fred W. (Knoxville, TN); Armstrong, Gary A. (Oak Ridge, TN); Jansen, John F. (Knoxville, TN); Muller, Richard C. (Oak Ridge, TN); Gee, Timothy F. (Riceville, TN)

    1998-01-01

    A position and orientation tracking system presents a laser scanning appaus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle.

  4. Position and orientation tracking system

    DOE Patents [OSTI]

    Burks, B.L.; DePiero, F.W.; Armstrong, G.A.; Jansen, J.F.; Muller, R.C.; Gee, T.F.

    1998-05-05

    A position and orientation tracking system presents a laser scanning apparatus having two measurement pods, a control station, and a detector array. The measurement pods can be mounted in the dome of a radioactive waste storage silo. Each measurement pod includes dual orthogonal laser scanner subsystems. The first laser scanner subsystem is oriented to emit a first line laser in the pan direction. The second laser scanner is oriented to emit a second line laser in the tilt direction. Both emitted line lasers scan planes across the radioactive waste surface to encounter the detector array mounted on a target robotic vehicle. The angles of incidence of the planes with the detector array are recorded by the control station. Combining measurements describing each of the four planes provides data for a closed form solution of the algebraic transform describing the position and orientation of the target robotic vehicle. 14 figs.

  5. Biomedical Sciences Orientation Autumn 2014

    E-Print Network [OSTI]

    Doty, Sharon Lafferty

    Biomedical Sciences Orientation Autumn 2014 Diana Louden ­ dknl@uw.edu 206-221-3480 ­ libguides & Humanities, Biological Structure, Biomedical Informatics & Medical Education, Genome Sciences, Immunology databases, electronic journals & books, help guides, news about resources & services, and the Biomedical

  6. Unmediated data-oriented generation 

    E-Print Network [OSTI]

    Cochran, Dave

    2006-01-01

    This thesis describes the development of a system of Data-Oriented Generation (DOG) wherein noun-phrases are produced as descriptions of simple visual stimuli. This is work towards a broader goal of developing a ...

  7. Static quark free energies at finite temperature with two flavors of improved Wilson quarks

    E-Print Network [OSTI]

    Y. Maezawa; S. Ejiri; T. Hatsuda; N. Ishii; N. Ukita; S. Aoki; K. Kanaya

    2006-10-02

    Polyakov loop correlations at finite temperature in two-flavor QCD are studied in lattice simulations with the RG-improved gluon action and the clover-improved Wilson quark action. From the simulations on a $16^3 \\times 4$ lattice, we extract the free energies, the effective running coupling $g_{\\rm eff}(T)$ and the Debye screening mass $m_D(T)$ for various color channels of heavy quark--quark and quark--anti-quark pairs above the critical temperature. The free energies are well approximated by the screened Coulomb form with the appropriate Casimir factors. The magnitude and the temperature dependence of the Debye mass are compared to those of the next-to-leading order thermal perturbation theory and to a phenomenological formula given in terms of $g_{\\rm eff}(T)$. Also we made a comparison between our results with the Wilson quark and those with the staggered quark previously reported.

  8. Wilson Loops in 3d QFT from D-branes in AdS(4) x CP**3

    E-Print Network [OSTI]

    J. Kluson; Kamal L. Panigrahi

    2009-03-09

    We study the Wilson loops and defects in the three dimensional QFT from the D-branes in the AdS(4) x CP**3 geometry. We find out explicit D-brane configurations in the bulk which correspond to both straight and circular Wilson lines extended to the boundary of AdS(4). We analyze critically the role of boundary contributions to the D2-branes with various topology and to the fundamental string actions.

  9. Sequence Stratigraphy and Detrital Zircon Geochronology of Middle-Late Ordovician Mt. Wilson Quartzite, British Columbia, Canada 

    E-Print Network [OSTI]

    Hutto, Andrew Paul

    2012-07-16

    STRATIGRAPHY AND DETRITAL ZIRCON GEOCHRONOLOGY OF MIDDLE-LATE ORDOVICIAN MT. WILSON QUARTZITE, BRITISH COLUMBIA CANADA A Thesis by ANDREW PAUL HUTTO Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 2012 Major Subject: Geology Sequence Stratigraphy and Detrital Zircon Geochronology of Middle-Late Ordovician Mt. Wilson...

  10. Hybrid Monte Carlo with Wilson Dirac operator on the Fermi GPU

    E-Print Network [OSTI]

    Abhijit Chakrabarty; Pushan Majumdar

    2012-07-10

    In this article we present our implementation of a Hybrid Monte Carlo algorithm for Lattice Gauge Theory using two degenerate flavours of Wilson-Dirac fermions on a Fermi GPU. We find that using registers instead of global memory speeds up the code by almost an order of magnitude. To map the array variables to scalars, so that the compiler puts them in the registers, we use code generators. Our final program is more than 10 times faster than a generic single CPU.

  11. A filtering technique for the temporally reduced matrix of the Wilson fermion determinant

    E-Print Network [OSTI]

    Yasunori Futamura; Shoji Hashimoto; Akira Imakura; Keitaro Nagata; Tetsuya Sakurai

    2014-11-16

    The Wilson fermion determinant can be written in the form of a series expansion in fugacity $\\xi=\\exp(\\mu/T)$, provided that the eigenmodes of the temporally reduced operator are obtained. Since the calculation of all eigenmodes rapidly becomes prohibitive for larger volumes, we develop a method to calculate only the low-energy eigenmodes of the reduced matrix using a matrix filetering technique. This provides a basis for an approximation to neglect uninteresting ultraviolet contributions.

  12. Probing Wilson loops in ${\\cal N}=4$ Chern-Simons-matter theories at weak coupling

    E-Print Network [OSTI]

    Griguolo, Luca; Mauri, Andrea; Penati, Silvia; Seminara, Domenico

    2015-01-01

    For three-dimensional ${\\cal N}=4$ super Chern-Simons-matter theories associated to necklace quivers $U(N_0) \\times U(N_1) \\times \\cdots U(N_{2r-1}) $, we study at quantum level the two kinds of 1/2 BPS Wilson loop operators recently introduced in arXiv:1506.07614. We perform a two-loop evaluation and find the same result for the two kinds of operators, so moving to higher loops a possible quantum uplift of the classical degeneracy. We also compute the 1/4 BPS bosonic Wilson loop and discuss the quantum version of the cohomological equivalence between fermionic and bosonic Wilson loops. We compare the perturbative result with the Matrix Model prediction and find perfect matching, after identification and remotion of a suitable framing factor. Finally, we discuss the potential appearance of three-loop contributions that might break the classical degeneracy and briefly analyse possible implications on the BPS nature of these operators.

  13. 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.

  14. 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 ...

  15. 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 ...

  16. 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

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. MOOSE: Multiphysics Object-Oriented Simulation Environment

    ScienceCinema (OSTI)

    Gaston, Derek

    2014-05-30

    An overview of Idaho National Laboratory's MOOSE: Multiphysics Object-Oriented Simulation Environment

  3. Nonlocal actin orientation models select for a unique orientation pattern

    E-Print Network [OSTI]

    Daniel Smith; Jian Liu

    2013-10-31

    Many models have been developed to study the role of branching actin networks in motility. One important component of those models is the distribution of filament orientations relative to the cell membrane. Two mean-field models previously proposed are generalized and analyzed. In particular, we find that both models uniquely select for a dominant orientation pattern. In the linear case, the pattern is the eigenfunction associated with the principal eigenvalue. In the nonlinear case, we show there exists a unique equilibrium and that the equilibrium is locally stable. Approximate techniques are then used to provide evidence for global stability.

  4. 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

  5. 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

  6. Experience Matters: Modeling the Relationship Between Face and Object Recognition

    E-Print Network [OSTI]

    Cottrell, Garrison W.

    of Psychology, Vanderbilt University 301 Wilson Hall, Nashville, TN 37240 USA Garrison Cottrell (gary

  7. 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.

  8. 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.

  9. FRESHMAN ACADEMIC HANDBOOK 2014 STUDENT ORIENTATION STAFF

    E-Print Network [OSTI]

    Portman, Douglas

    , Becca enjoys hanging out with friends, having coffee dates at Starbucks and Connections, and studying, at a Class Council meeting, at ASL Club Silent Coffee, or in Starbucks with her sisters from Alpha Phi. She Committee, is a member of College Democrats, and frequently can be found in the Wilson Commons Starbucks

  10. All-Optical Molecular Orientation

    SciTech Connect (OSTI)

    Oda, Keita; Hita, Masafumi; Minemoto, Shinichirou; Sakai, Hirofumi [Department of Physics, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

    2010-05-28

    We report clear evidence of all-optical orientation of carbonyl sulfide molecules with an intense nonresonant two-color laser field in the adiabatic regime. The technique relies on the combined effects of anisotropic hyperpolarizability interaction and anisotropic polarizability interaction and does not rely on the permanent dipole interaction with an electrostatic field. It is demonstrated that the molecular orientation can be controlled simply by changing the relative phase between the two wavelength fields. The present technique brings researchers a new steering tool of gaseous molecules and will be quite useful in various fields such as electronic stereodynamics in molecules and ultrafast molecular imaging.

  11. Spin Hall magnetoresistance at Pt/CoFe{sub 2}O{sub 4} interfaces and texture effects

    SciTech Connect (OSTI)

    Isasa, Miren; Bedoya-Pinto, Amilcar; Vélez, Saül; Golmar, Federico; Sánchez, Florencio; Fontcuberta, Josep; Hueso, Luis E.; Casanova, Fèlix

    2014-10-06

    We report magnetoresistance measurements on thin Pt bars grown on epitaxial (001) and (111) CoFe{sub 2}O{sub 4} (CFO) ferrimagnetic insulating films. The results can be described in terms of the recently discovered spin Hall magnetoresistance (SMR). The magnitude of the SMR depends on the interface preparation conditions, being optimal when the Pt/CFO samples are prepared in situ, in a single process. The spin-mixing interface conductance, the key parameter governing SMR and other relevant spin-dependent phenomena, such as spin pumping or spin Seebeck effect, is found to be different depending on the crystallographic orientation of CFO, highlighting the role of the composition and density of magnetic ions at the interface on spin mixing.

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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;

  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. 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. Student Orientation Guide General Psychology

    E-Print Network [OSTI]

    Alvarez-Cohen, Lisa

    Student Orientation Guide PSYC W1 General Psychology June 22-August 14, 2015 Summer Session Online to Psychology (Cengage, 10th ed., 2014), by James W. Kalat · Be sure to purchase the Kalat book, and be sure to purchase the 10th edition; other sections of Psychology 1 and 2 may use different texts · ISBN-10

  11. Effective potential for SU(2) Polyakov loops and Wilson loop eigenvalues

    E-Print Network [OSTI]

    Dominik Smith; Adrian Dumitru; Robert Pisarski; Lorenz von Smekal

    2013-07-24

    We simulate SU(2) gauge theory at temperatures ranging from slightly below $T_c$ to roughly $2T_c$ for two different values of the gauge coupling. Using a histogram method, we extract the effective potential for the Polyakov loop and for the phases of the eigenvalues of the thermal Wilson loop, in both the fundamental and adjoint representations. We show that the classical potential of the fundamental loop can be parametrized within a simple model which includes a Vandermonde potential and terms linear and quadratic in the Polyakov loop. We discuss how parametrizations for the other cases can be obtained from this model.

  12. Large anomalous Hall effect in ferromagnetic insulator-topological insulator heterostructures

    SciTech Connect (OSTI)

    Alegria, L. D.; Petta, J. R.; Ji, H.; Cava, R. J.; Yao, N.; Clarke, J. J.

    2014-08-04

    We demonstrate the van der Waals epitaxy of the topological insulator compound Bi{sub 2}Te{sub 3} on the ferromagnetic insulator Cr{sub 2}Ge{sub 2}Te{sub 6}. The layers are oriented with (001)Bi{sub 2}Te{sub 3}||(001)Cr{sub 2}Ge{sub 2}Te{sub 6} and (110)Bi{sub 2}Te{sub 3}||(100)Cr{sub 2}Ge{sub 2}Te{sub 6}. Cross-sectional transmission electron microscopy indicates the formation of a sharp interface. At low temperatures, bilayers consisting of Bi{sub 2}Te{sub 3} on Cr{sub 2}Ge{sub 2}Te{sub 6} exhibit a large anomalous Hall effect (AHE). Tilted field studies of the AHE indicate that the easy axis lies along the c-axis of the heterostructure, consistent with magnetization measurements in bulk Cr{sub 2}Ge{sub 2}Te{sub 6}. The 61?K Curie temperature of Cr{sub 2}Ge{sub 2}Te{sub 6} and the use of near-stoichiometric materials may lead to the development of spintronic devices based on the AHE.

  13. Non-local order in Mott insulators, duality and Wilson loops

    SciTech Connect (OSTI)

    Rath, Steffen Patrick; Simeth, Wolfgang; Endres, Manuel; Zwerger, Wilhelm

    2013-07-15

    It is shown that the Mott insulating and superfluid phases of bosons in an optical lattice may be distinguished by a non-local ‘parity order parameter’ which is directly accessible via single site resolution imaging. In one dimension, the lattice Bose model is dual to a classical interface roughening problem. We use known exact results from the latter to prove that the parity order parameter exhibits long range order in the Mott insulating phase, consistent with recent experiments by Endres et al. [M. Endres, M. Cheneau, T. Fukuhara, C. Weitenberg, P. Schauß, C. Gross, L. Mazza, M.C. Bañuls, L. Pollet, I. Bloch, et al., Science 334 (2011) 200]. In two spatial dimensions, the parity order parameter can be expressed in terms of an equal time Wilson loop of a non-trivial U(1) gauge theory in 2+1 dimensions which exhibits a transition between a Coulomb and a confining phase. The negative logarithm of the parity order parameter obeys a perimeter law in the Mott insulator and is enhanced by a logarithmic factor in the superfluid. -- Highlights: •Number statistics of cold atoms in optical lattices show non-local correlations. •These correlations are measurable via single site resolution imaging. •Incompressible phases exhibit an area law in particle number fluctuations. •This leads to long-range parity order of Mott-insulators in one dimension. •Parity order in 2d is connected with a Wilson-loop in a lattice gauge theory.

  14. Impact of electromagnetism on phase structure for Wilson and twisted-mass fermions including isospin breaking

    E-Print Network [OSTI]

    Derek P. Horkel; Stephen R. Sharpe

    2015-05-09

    In a recent paper we used chiral perturbation theory to determine the phase diagram and pion spectrum for Wilson and twisted-mass fermions at non-zero lattice spacing with non-degenerate up and down quarks. Here we extend this work to include the effects of electromagnetism, so that it is applicable to recent simulations incorporating all sources of isospin breaking. For Wilson fermions, we find that the phase diagram is unaffected by the inclusion of electromagnetism---the only effect is to raise the charged pion masses. For maximally twisted fermions, we previously took the twist and isospin-breaking directions to be different, in order that the fermion determinant is real and positive. However, this is incompatible with electromagnetic gauge invariance, and so here we take the twist to be in the isospin-breaking direction, following the RM123 collaboration. We map out the phase diagram in this case, which has not previously been studied. The results differ from those obtained with different twist and isospin directions. One practical issue when including electromagnetism is that the critical masses for up and down quarks differ. We show that one of the criteria suggested to determine these critical masses does not work, and propose an alternative.

  15. Double affine Hecke algebras of rank 1 and the $Z_3$-symmetric Askey-Wilson relations

    E-Print Network [OSTI]

    Ito, Tatsuro

    2010-01-01

    We consider the double affine Hecke algebra $H=H(k_0,k_1,k^\\vee_0,k^\\vee_1;q)$ associated with the root system $(C^\\vee_1,C_1)$. We display three elements $x,y,z$ in $H$ that satisfy essentially the $Z_3$-symmetric Askey-Wilson relations. We obtain the relations as follows. We introduce an algebra $\\hat H$ that is more general than $H$, called the universal double affine Hecke algebra of type $(C_1^\\vee,C_1)$. An advantage of $\\hat H$ over $H$ is that it is parameter free and has a larger automorphism group. We give a surjective algebra homomorphism ${\\hat H} \\to H$. We define some elements $x,y,z$ in $\\hat H$ that get mapped to their counterparts in $H$ by this homomorphism. We give an action of Artin's braid group $B_3$ on $\\hat H$ that acts nicely on the elements $x,y,z$; one generator sends $x\\mapsto y\\mapsto z \\mapsto x$ and another generator interchanges $x,y$. Using the $B_3$ action we show that the elements $x,y,z$ in $\\hat H$ satisfy three equations that are essentially $Z_3$-symmetric Askey-Wilson r...

  16. Impact of electromagnetism on phase structure for Wilson and twisted-mass fermions including isospin breaking

    E-Print Network [OSTI]

    Derek P. Horkel; Stephen R. Sharpe

    2015-09-25

    In a recent paper we used chiral perturbation theory to determine the phase diagram and pion spectrum for Wilson and twisted-mass fermions at non-zero lattice spacing with non-degenerate up and down quarks. Here we extend this work to include the effects of electromagnetism, so that it is applicable to recent simulations incorporating all sources of isospin breaking. For Wilson fermions, we find that the phase diagram is unaffected by the inclusion of electromagnetism---the only effect is to raise the charged pion masses. For maximally twisted fermions, we previously took the twist and isospin-breaking directions to be different, in order that the fermion determinant is real and positive. However, this is incompatible with electromagnetic gauge invariance, and so here we take the twist to be in the isospin-breaking direction, following the RM123 collaboration. We map out the phase diagram in this case, which has not previously been studied. The results differ from those obtained with different twist and isospin directions. One practical issue when including electromagnetism is that the critical masses for up and down quarks differ. We show that one of the criteria suggested to determine these critical masses does not work, and propose an alternative.

  17. Exponentiation for products of Wilson lines within the generating function approach

    E-Print Network [OSTI]

    Alexey A. Vladimirov

    2015-06-16

    We present the generating function approach to the perturbative exponentiation of correlators of a product of Wilson lines and loops. The exponentiated expression is presented in closed form as an algebraic function of correlators of known operators, which can be seen as a generating function for web diagrams. The expression is naturally split onto two parts: the exponentiation kernel, which accumulates all non-trivial information about web diagrams, and the defect of exponentiation, which reconstructs the matrix exponent and is a function of the exponentiation kernel. The detailed comparison of the presented approach with existing approaches to exponentiation is presented as well. We also give examples of calculations within the generating function exponentiation, namely, we consider different configurations of light-like Wilson lines in the multi-gluon-exchange-webs (MGEW) approximation. Within this approximation the corresponding correlators can be calculated exactly at any order of perturbative expansion by only algebraic manipulations. The MGEW approximation shows violation of the dipole formula for infrared singularities at three-loop order.

  18. Phase Diagram of Dynamical Twisted Mass Wilson Fermions at Finite Isospin Chemical Potential

    E-Print Network [OSTI]

    Janssen, Oliver; Splittorff, K; Verbaarschot, Jacobus J M; Zafeiropoulos, Savvas

    2015-01-01

    We consider the phase diagram of twisted mass Wilson fermions of two-flavor QCD in the parameter space of the quark mass, the isospin chemical potential, the twist angle and the lattice spacing. This work extends earlier studies in the continuum and those at zero chemical potential. We evaluate the phase diagram as well as the spectrum of the (pseudo-)Goldstone bosons using the chiral Lagrangian for twisted mass Wilson fermions at non-zero isospin chemical potential. The phases are obtained from a mean field analysis. At zero twist angle we find that already an infinitesimal isospin chemical potential destroys the Aoki phase. The reason is that in this phase we have massless Goldstone bosons with a non-zero isospin charge. At finite twist angle only two different phases are present, one phase which is continuously connected to the Bose condensed phase at non-zero chemical potential and another phase which is continuously connected to the normal phase. For either zero or maximal twist the phase diagram is more...

  19. Mathematics and Engineering Mathematics & Engineering Orientation Evening

    E-Print Network [OSTI]

    Wehlau, David

    Mathematics and Engineering Mathematics & Engineering Orientation Evening Thursday, January 29, 2015 WELCOME! #12;Mathematics & Engineering Orientation Program Thursday, January 29, 2015 1. Program Presentation · Welcome · What is Mathematics & Engineering ? · Why Mathematics & Engineering ? · Program

  20. Homemaker Orientation Related to Marketing. 

    E-Print Network [OSTI]

    Stubbs, Alice

    1965-01-01

    basic be- havioral characteristics which relate to her marketing behavior. For convenience these behavior characteristics have been termed "orientation of the homemaker." Three major types may be expected. They are 1) the homemaker who buys from... habit, 2) the homemaker who rationalizes and 3) the one who buys on impulse. In order to group the homemakers in the study, questions were designed that would reflect basic behavior. In each set of data 14 percent of the homemakers were classed...

  1. Patterns of Service-Oriented Architecture

    E-Print Network [OSTI]

    Zdun, Uwe

    Patterns of Service-Oriented Architecture Uwe Zdun Email: zdun@infosys.tuwien.ac.at, zdun-Oriented Architecture 1 #12;Agenda · Service-oriented architectures (SOA) · Patterns and pattern languages · Basic service architecture · SOA layers and basic remoting architecture · SOA variation points and adaptation

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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...

  7. 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.

  8. 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.

  9. 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.

  10. 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.

  11. 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,

  12. 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.

  13. Topological structure of the SU(3) vacuum and exceptional eigenmodes of the improved Wilson-Dirac operator

    E-Print Network [OSTI]

    D. Smith; H. Simma; M. Teper

    1997-09-26

    We present a study of the instanton size and spatial distributions in pure SU(3) gauge theory using under-relaxed cooling. We also investigate the low-lying eigenmodes of the (improved) Wilson-Dirac operator, in particular, the appearance of zero-modes and their space-time localisation with respect to instantons in the underlying gauge field.

  14. Cold Flow Simulations for a Pulse Detonation Rocket Ejector J. Tyler Nichols, Donald R. Wilson, Frank K. Lu

    E-Print Network [OSTI]

    Texas at Arlington, University of

    supersonic Mach numbers (2) A pulsed normal detonation wave mode at combustion chamber Mach numbers less thanCold Flow Simulations for a Pulse Detonation Rocket Ejector J. Tyler Nichols, Donald R. Wilson pulse detonation rocket (PDR) ejecting into a duct was fabricated and integrated into the supersonic

  15. This article was downloaded by: [North Carolina State University], [James R. Wilson] On: 03 August 2014, At: 08:12

    E-Print Network [OSTI]

    This article was downloaded by: [North Carolina State University], [James R. Wilson] On: 03 August of Industrial and Systems Engineering, North Carolina State University, Campus Box 7906, Raleigh, NC 27695-7906, USA c Department of Textile and Apparel Technology and Management, North Carolina State University

  16. Internet Based Prototyping of MicroElectroMechanical Systems N. M. Wilson 1 , D. Yergeau 2 , R. W. Dutton 2

    E-Print Network [OSTI]

    Dutton, Robert W.

    Internet Based Prototyping of Micro­Electro­Mechanical Systems N. M. Wilson 1 , D. Yergeau 2 , R. W an Internet­based prototyping environment for microsystems. The field of MEMS provides an ideal target, the MEMS market is relatively new and use of simulation in the design process has not yet become deeply

  17. Integration of TCAD Tools into CAD Tools for MEMS Nathan M. Wilson 1 , Robert W. Dutton 2

    E-Print Network [OSTI]

    Dutton, Robert W.

    @stanford.edu Micro-Electro-Mechanical Systems (MEMS) o#11;er dramatic new functional capabilities. Analysis of MEMSIntegration of TCAD Tools into CAD Tools for MEMS Nathan M. Wilson 1 , Robert W. Dutton 2- dimensional. The multi-domain physics for MEMS includes electrical, mechanical, and uidic interactions. E#11

  18. Wilson Bull., 11l(l), 1999, pp. 100-104 EFFECTS OF WIND TURBINES ON UPLAND NESTING BIRDS IN

    E-Print Network [OSTI]

    Wilson Bull., 11l(l), 1999, pp. 100-104 EFFECTS OF WIND TURBINES ON UPLAND NESTING BIRDS in southwestern Minnesota to determine the relative influence of wind turbines on overall densities of upland transects that were placed along wind turbine strings within three CRP fields and in three CRP fields

  19. Crack Propagation Fracture Toughness of Several Wood Species Elijah Wilson, Meisam Shir Mohammadi, and John A. Nairn

    E-Print Network [OSTI]

    Nairn, John A.

    1 Crack Propagation Fracture Toughness of Several Wood Species Elijah Wilson, Meisam Shir Mohammadi In materials with process zones, such as fiber bridging zones in wood, it is crucial to characterize fracture toughness as a function of crack growth, known as the material's R curve. Here, a new fracture testing

  20. Magneto-transport properties of oriented Mn{sub 2}CoAl films sputtered on thermally oxidized Si substrates

    SciTech Connect (OSTI)

    Xu, G. Z.; Du, Y.; Zhang, X. M.; Liu, E. K.; Wang, W. H. Wu, G. H.; Zhang, H. G.

    2014-06-16

    Spin gapless semiconductors are interesting family of materials by embracing both magnetism and semiconducting due to their unique band structure. Its potential application in future spintronics requires realization in thin film form. In this Letter, we report fabrication and transport properties of spin gapless Mn{sub 2}CoAl films prepared on thermally oxidized Si substrates by magnetron sputtering deposition. The films deposited at 673?K are well oriented to (001) direction and display a uniform-crystalline surface. Magnetotransport measurements on the oriented films reveal a semiconducting-like resistivity, small anomalous Hall conductivity, and linear magnetoresistance representative of the transport signatures of spin gapless semiconductors. The magnetic properties of the films have also been investigated and compared to that of bulk Mn{sub 2}CoAl, showing small discrepancy induced by the composition deviation.

  1. Superconducting magnet for nuclei orientation 

    E-Print Network [OSTI]

    Wang, Fa-Chung

    1968-01-01

    hyperfine coupling (hfs) of the form I S between the nuclear spin and. the electron spin. In this method. , one applies only a sufficient external f1eld (H/T ~ 10 Oe/ K) on a paramagnet1c crystal to polarize the electron spin, which in turn orient... the nuclear spin through hfs. Th1s method thus requires three things: a sufficiently large external magnetic f1eld, a very low temperature, and. a paramagnetic orystal with strong hyperiine coupling. The first sample we choose 1s an holm1um (Ho ) 165...

  2. Object-oriented concurrent programming

    SciTech Connect (OSTI)

    Yonezawa, A.; Tokoro, M.

    1986-01-01

    This book deals with a major theme of the Japanese Fifth Generation Project, which emphasizes logic programming, parallelism, and distributed systems. It presents a collection of tutorials and research papers on a new programming and design methodology in which the system to be constructed is modeled as a collection of abstract entities called ''objects'' and concurrent messages passing among objects. The book includes proposals for programming languages that support this methodology, as well as the applications of object-oriented concurrent programming to such areas as artificial intelligence, software engineering, music synthesis, office information systems, and system programming.

  3. ARM Orientation: Overview and History

    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 OutreachProductswsicloudwsicloudden Documentation Data Management Facility009 ARM Orientation 1 Warren Wiscombe

  4. Efficient Algebraic Representations for Throughput-Oriented Algorithms

    E-Print Network [OSTI]

    McKinlay, Christopher E.

    2013-01-01

    Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . .Throughput-Oriented Algorithm Design Multilinear

  5. QCD Condensates and Holographic Wilson Loops for Asymptotically AdS Spaces

    SciTech Connect (OSTI)

    Quevedo, R. Carcasses; Goity, Jose L.; Trinchero, Roberto C.

    2014-02-01

    The minimization of the Nambu-Goto (NG) action for a surface whose contour defines a circular Wilson loop of radius a placed at a finite value of the coordinate orthogonal to the border is considered. This is done for asymptotically AdS spaces. The condensates of dimension n = 2, 4, 6, 8, and 10 are calculated in terms of the coefficients in the expansion in powers of the radius a of the on-shell subtracted NG action for small a->0. The subtraction employed is such that it presents no conflict with conformal invariance in the AdS case and need not introduce an additional infrared scale for the case of confining geometries. It is shown that the UV value of the gluon condensates is universal in the sense that it only depends on the first coefficients of the difference with the AdS case.

  6. Determination of Reference Scales for Wilson Gauge Action from Yang--Mills Gradient Flow

    E-Print Network [OSTI]

    Masayuki Asakawa; Takumi Iritani; Masakiyo Kitazawa; Hiroshi Suzuki

    2015-10-08

    A parametrization of the lattice spacing ($a$) in terms of the bare coupling ($\\beta$) for the SU(3) Yang--Mills theory with the Wilson gauge action is given in a wide range of~$\\beta$. The Yang--Mills gradient flow with respect to the flow time~$t$ for the dimensionless observable, $t\\frac{d}{dt}t^2\\langle E(t)\\rangle$, is utilized to determine the parametrization. With fine lattice spacings ($6.3\\le\\beta\\le7.5$) and large lattice volumes ($N_{\\rm s}=64$--$128$), the discretization and finite-volume errors are significantly reduced to the same level as the statistical error.

  7. QCD thermodynamics with two flavours of Wilson fermions on large lattices

    E-Print Network [OSTI]

    Bastian B. Brandt; Anthony Francis; Harvey B. Meyer; Owe Philipsen; Hartmut Wittig

    2012-10-25

    We explore the phase diagram of two flavour QCD at vanishing chemical potential using dynamical O(a)-improved Wilson quarks. In the approach to the chiral limit we use lattices with a temporal extent of N_t=16 and spatial extent L=32,48 and 64 to enable the extrapolation to the thermodynamic limit with small discretisation effects. In addition to an update on the scans at constant \\kappa, reported earlier, we present first results from scans along lines of constant physics at a pion mass of 290 MeV. We probe the transition using the Polyakov loop and the chiral condensate, as well as spectroscopic observables such as screening masses.

  8. Testing universality and automatic O(a) improvement in massless lattice QCD with Wilson quarks

    E-Print Network [OSTI]

    Bjorn Leder; Stefan Sint

    2010-12-12

    The chirally rotated Schroedinger functional provides a test bed for universality and automatic O(a) improvement. We here report on extensive quenched simulations of lattice QCD with Wilson quarks in the massless limit. We demonstrate that, after proper tuning of a dimension 3 boundary counterterm, the expected chirally rotated boundary conditions are indeed obtained. This implies automatic O(a) improvement which we then verify in a few examples. Universality of properly renormalized correlation functions is confirmed by comparing to the standard set-up of the Schroedinger functional. As a by-product of this study the non-singlet current renormalisation constants Z_A and Z_V are obtained from ratios of 2-point functions.

  9. QCD with light Wilson quarks on fine lattices (I): first experiences and physics results

    E-Print Network [OSTI]

    L. Del Debbio; L. Giusti; M. Lüscher; R. Petronzio; N. Tantalo

    2006-10-09

    Recent conceptual, algorithmic and technical advances allow numerical simulations of lattice QCD with Wilson quarks to be performed at significantly smaller quark masses than was possible before. Here we report on simulations of two-flavour QCD at sea-quark masses from slightly above to approximately 1/4 of the strange-quark mass, on lattices with up to 64x32^3 points and spacings from 0.05 to 0.08 fm. Physical sea-quark effects are clearly seen on these lattices, while the lattice effects appear to be quite small, even without O(a) improvement. A striking result is that the dependence of the pion mass on the sea-quark mass is accurately described by leading-order chiral perturbation theory up to meson masses of about 500 MeV.

  10. 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...

  11. 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.

  12. 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

  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. Biaxially oriented film on flexible polymeric substrate

    DOE Patents [OSTI]

    Finkikoglu, Alp T. (Los Alamos, NM); Matias, Vladimir (Santa Fe, NM)

    2009-10-13

    A flexible polymer-based template having a biaxially oriented film grown on the surface of a polymeric substrate. The template having the biaxially oriented film can be used for further epitaxial growth of films of interest for applications such as photovoltaic cells, light emitting diodes, and the like. Methods of forming such a flexible template and providing the polymeric substrate with a biaxially oriented film deposited thereon are also described.

  15. RCRA orientation manual, 1990 edition

    SciTech Connect (OSTI)

    Clay, D.R.

    1990-01-01

    The U.S. Environmental Protection Agency (EPA) developed the manual to provide introductory information on the solid and hazardous waste management programs under the Resource Conservation and Recovery Act (RCRA). The manual outlines the basic framework of the regulatory program for new EPA and State employees, those persons new to RCRA assignments, and others interested in the Act. The manual is not, however, meant to replace in-depth analysis of the statute and its associated regulations and Agency guidance. The manual is an update of the original RCRA Orientation Manual issued in 1986. Revisions contained in the update reflect the many regulatory changes that have resulted from both the Hazardous and Solid Waste Amendments (HSWA) of 1984 and the Medical Waste Tracking Act of 1988 (RCRA Subtitle J).

  16. Better Buildings Residential Network Orientation Webinar Call...

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

    Orientation Webinar Call Slides and Summary September 11, 2014 Agenda Call Logistics and Introductions Opening Polls Better Buildings Residential Network Presentation...

  17. Better Buildings Residential Network (BBRN) Orientation Call...

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

    (BBRN) Orientation Call Slides and Summary March 27, 2014 Agenda Call Logistics and Introductions Opening Polls Better Buildings Residential Network Presentation ...

  18. 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

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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.

  4. 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:

  5. 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:

  6. 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

  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. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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], ...

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  1. 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

  2. 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.

  3. 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

  4. 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

  5. I:\\Orientation\\Emergency Prepardeness\\2012 07 18 Orientation To The Emergency Color Codes.Docx Page 1 Orientation to the Emergency Color Codes, Edmonton Clinic

    E-Print Network [OSTI]

    MacMillan, Andrew

    handlers will shut down and staffI:\\Orientation\\Emergency Prepardeness\\2012 07 18 Orientation To The Emergency Color Codes.Docx Page 1 Orientation to the Emergency Color Codes, Edmonton Clinic Code Blue (cardiac/respiratory arrest

  6. 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

  7. Free energies of heavy quarks in full-QCD lattice simulations with Wilson-type quark action

    E-Print Network [OSTI]

    Y. Maezawa; S. Aoki; S. Ejiri; T. Hatsuda; N. Ishii; K. Kanaya; H. Ohno; T. Umeda

    2009-09-16

    The free energy between a static quark and an antiquark is studied by using the color-singlet Polyakov-line correlation at finite temperature in lattice QCD with 2+1 flavors of improved Wilson quarks. From the simulations on $32^3 \\times 12$, 10, 8, 6, 4 lattices in the high temperature phase, based on the fixed scale approach, we find that, the heavy-quark free energies at short distance converge to the heavy-quark potential evaluated from the Wilson loop at zero temperature, in accordance with the expected insensitivity of short distance physics to the temperature. At long distance, the heavy-quark free energies approach to twice the single-quark free energies, implying that the interaction between heavy quarks is screened. The Debye screening mass obtained from the long range behavior of the free energy is compared with the results of thermal perturbation theory.

  8. Simulating QCD at the Physical Point with $N_f=2$ Wilson Twisted Mass Fermions at Maximal Twist

    E-Print Network [OSTI]

    ETM Collaboration; A. Abdel-Rehim; C. Alexandrou; F. Burger; M. Constantinou; P. Dimopoulos; R. Frezzotti; K. Hadjiyiannakou; K. Jansen; C. Kallidonis; B. Kostrzewa; G. Koutsou; M. Mangin-Brinet; M. Petschlies; G. Pientka; G. C. Rossi; C. Urbach; U. Wenger

    2015-07-17

    We present simulations of QCD using Nf=2 dynamical Wilson twisted mass lattice QCD with physical value of the pion mass and at one value of the lattice spacing. Such simulations at ~0.09 fm became possible by adding the clover term to the action. While O(a) improvement is still guaranteed by Wilson twisted mass fermions at maximal twist, the introduction of the clover term reduces cutoff effects related to isospin symmetry breaking. We give results for a set of phenomenologically interesting observables like pseudo-scalar masses and decay constants, quark masses and the anomalous magnetic moments of leptons. We mostly find remarkably good agreement with phenomenology, even though we cannot take the continuum and thermodynamic limits.

  9. Grid Orientations, (d, d + 2)-Polytopes and

    E-Print Network [OSTI]

    Felsner, Stefan

    the grid orientation can be read off a planar arrangement of red and blue lines. If f is an abstractGrid Orientations, (d, d + 2)-Polytopes and Arrangements of Pseudolines Stefan Felsner Institut f of linear programs on simple d-polytopes with d + 2 facets. These can be encoded by admissible grid

  10. Optical orientation of holes in strained nanostructures

    SciTech Connect (OSTI)

    Averkiev, N. S.; Sablina, N. I.

    2008-03-15

    A theory describing the optical orientation and Hanle effect for holes in quantum wells or quantum dots based on cubic semiconductors is developed. It is demonstrated that the presence of internal or external strain in quantum-confinement heterostructures leads to the dependence of the Hanle effect on the orientation of the magnetic field with respect to the heterostructure growth axis.

  11. 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.

  12. 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...

  13. 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.

  14. 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.

  15. Wilson polynomials/functions and intertwining operators for the generic quantum superintegrable system on the 2-sphere

    E-Print Network [OSTI]

    Willard Miller Jr; Qiushi Li

    2015-01-09

    It has been known since 2007 that the Wilson and Racah polynomials can be characterized as basis functions for irreducible representations of the quadratic symmetry algebra of the quantum superintegrable system on the 2-sphere, $H\\Psi=E\\Psi$, with generic 3-parameter potential. Clearly, the polynomials are expansion coefficients for one eigenbasis of a symmetry operator $L_1$ of $H$ in terms of an eigenbasis of another symmetry operator $L_2$, but the exact relationship appears not to have been made explicit. We work out the details of the expansion to show, explicitly, how the polynomials arise and how the principal properties of these functions: the measure, 3-term recurrence relation, 2nd order difference equation, duality of these relations, permutation symmetry, intertwining operators and an alternate derivation of Wilson functions -- follow from the symmetry of this quantum system. There is active interest in the relation between multivariable Wilson polynomials and the quantum superintegrable system on the $n$-sphere with generic potential, and these results should aid in the generalization. Contracting function space realizations of irreducible representations of this quadratic algebra to the other superintegrable systems one can obtain the full Askey scheme of orthogonal hypergeometric polynomials. All of these contractions of superintegrable systems with potential are uniquely induced by Wigner Lie algebra contractions of $so(3, C )$ and $e(2, C)$. All of the polynomials produced are interpretable as quantum expansion coefficients. It is important to extend this process to higher dimensions.

  16. Status of the Lambda Lattice Scale for the SU(3) Wilson gauge action

    E-Print Network [OSTI]

    Bernd A. Berg

    2015-01-31

    With the emergence of the Yang-Mills gradient flow technique there is renewed interest in the issue of scale setting in lattice gauge theory. Here I compare for the SU(3) Wilson gauge action non-perturbative scale functions of Edwards, Heller and Klassen (EHK), Necco and Sommer (NS), both relying on Sommer's method using the quark potential, and the scale function derived by Bazavov, Berg and Velytsky (BBV) from a deconfining phase transition investigation by the Bielefeld group. It turns out that the scale functions are based on mutually inconsistent data, though the BBV scale function is consistent with the EHK data when their low $\\beta$ ($\\beta=5.6$) data point is removed. Besides, only the BBV scale function is consistent with three data points calculated from the gradient flow by L\\"uscher. In the range for which data exist the discrepancies between the scale functions are only up to $\\pm 2$\\% of their values, but clearly visible within the statistical accuracy.

  17. Stochastic Wilson-Cowan models of neuronal network dynamics with memory and delay

    E-Print Network [OSTI]

    Goychuk, Igor

    2015-01-01

    We consider a simple Markovian class of the stochastic Wilson-Cowan type models of neuronal network dynamics, which incorporates stochastic delay caused by the existence of a refractory period of neurons. From the point of view of the dynamics of the individual elements, we are dealing with a network of non-Markovian stochastic two-state oscillators with memory which are coupled globally in a mean-field fashion. This interrelation of a higher-dimensional Markovian and lower-dimensional non-Markovian dynamics is discussed in its relevance to the general problem of the network dynamics of complex elements possessing memory. The simplest model of this class is provided by a three-state Markovian neuron with one refractory state, which causes firing delay with an exponentially decaying memory within the two-state reduced model. This basic model is used to study critical avalanche dynamics (the noise sustained criticality) in a balanced feedforward network consisting of the excitatory and inhibitory neurons. Such ...

  18. Processing and thermal properties of molecularly oriented polymers

    E-Print Network [OSTI]

    Skow, Erik (Erik Dean)

    2007-01-01

    High molecular weight polymers that are linear in molecular construction can be oriented such that some of their physical properties in the oriented direction are enhanced. For over 50 years polymer orientation and processing ...

  19. 1New Students Orientation Campus Health & Wellbeing Health Services

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    1New Students Orientation ­ Campus Health & Wellbeing University Health Services Campus Health & Wellbeing 2New Students Orientation ­ Campus Health & Wellbeing University Health Services (UHS) UMass (HPV, MMR, etc...) Sports Medicine 9New Students Orientation ­ Campus Health & Wellbeing UHS also

  20. 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.

  1. 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.

  2. 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}.

  3. 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.

  4. 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.

  5. A theory of goal-oriented communication

    E-Print Network [OSTI]

    Goldreich, Oded

    We put forward a general theory of goal-oriented communication, where communication is not an end in itself, but rather a means to achieving some goals of the communicating parties. Focusing on goals provides a framework ...

  6. Optimal orientation in branched cytoskeletal networks

    E-Print Network [OSTI]

    D. A. Quint; J. M. Schwarz

    2011-02-22

    Actin cytoskeletal protrusions in crawling cells, or lamellipodia, exhibit various morphological properties such as two characteristic peaks in the distribution of filament orientation with respect to the leading edge. To understand these properties, using the dendritic nucleation model as a basis for cytoskeletal restructuring, a kinetic-population model with orientational-dependent branching (birth) and capping (death) is constructed and analyzed. Optimizing for growth yields a relation between the branch angle and filament orientation that explains the two characteristic peaks. The model also exhibits a subdominant population that allows for more accurate modeling of recent measurements of filamentous actin density along the leading edge of lamellipodia in keratocytes. Finally, we explore the relationship between orientational and spatial organization of filamentous actin in lamellipodia and address recent observations of a prevalence of overlapping filaments to branched filaments---a finding that is claimed to be in contradiction with the dendritic nucleation model.

  7. User-Oriented Modeling Tools for Advanced Hybrid and Climate...

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

    User-Oriented Modeling Tools for Advanced Hybrid and Climate-Appropriate Rooftop Air Conditioners User-Oriented Modeling Tools for Advanced Hybrid and Climate-Appropriate Rooftop...

  8. Employment Discrimination Based on Sexual Orientation: A Hong Kong Study

    E-Print Network [OSTI]

    Lau, Holning; Stotzer, Rebecca L.

    2010-01-01

    M. V. L. (2006). Discrimination based on sexual orientation:of economics and discrimination (pp. 161–186). UnitedEds. ), Sexual orientation discrimination: An international

  9. The influence of molecular orientation on organic bulk heterojunction...

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

    The influence of molecular orientation on organic bulk heterojunction solar cells The influence of molecular orientation on organic bulk heterojunction solar cells Print Monday, 28...

  10. 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 ...

  11. 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.

  12. 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 ...

  13. 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...

  14. 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 ...

  15. 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 ...

  16. 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.

  17. 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

  18. 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...

  19. 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.

  20. 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...

  1. 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.

  2. Determination of c_sw in N_f=3+1 Lattice QCD with massive Wilson fermions

    E-Print Network [OSTI]

    Patrick Fritzsch; Rainer Sommer; Felix Stollenwerk; Ulli Wolff

    2015-01-27

    We develop a strategy for the non-perturbative determination of the O(a)-improvement coefficient c_sw for Wilson fermions with massive sea quarks. The improvement condition is defined via the PCAC relation in the Schr\\"odinger functional. It is imposed along a line of constant physics designed to be close to the correct mass of the charm quark. The numerical work uses the tree-level improved L\\"uscher-Weisz gauge action in N_f=3+1 Lattice QCD.

  3. Residual orientation in micro-injection molded parts

    SciTech Connect (OSTI)

    Healy, John; Edward, Graham H.; Knott, Robert B. (Monash); (ANSTO)

    2008-06-30

    The residual orientation following micro-injection molding of small rectangular plates with linear polyethylene has been examined using small-angle neutron scattering, and small- and wide-angle X-ray scattering. The effect of changing the molding conditions has been examined, and the residual chain orientation has been compared to the residual orientation of the crystallites as a function of position in the sample. This study has found that, for micromoldings, the orientation of the crystallites decreases with increasing injection speed and increasing mold thickness. The combined data suggest that the majority of the orientation present comes from oriented crystal growth rather than residual chain orientation.

  4. Report of a workshop on nuclear forces and nonproliferation Woodrow Wilson international center for scholars, Washington, DC October 28, 2010

    SciTech Connect (OSTI)

    Pilat, Joseph F [Los Alamos National Laboratory

    2010-12-08

    A workshop sponsored by the Los Alamos National Laboratory in cooperation with the Woodrow Wilson International Center for Scholars was held at the Wilson Center in Washington, DC, on October 28, 2010. The workshop addressed evolving nuclear forces and their impacts on nonproliferation in the context of the new strategic environment, the Obama Administration's Nuclear Posture Review and the 2010 NPT Review Conference. The discussions reflected the importance of the NPR for defining the role of US nuclear forces in dealing with 21st century threats and providing guidance for National Nuclear Security Administration (NNSA) and Department of Defense (DoD) programs and, for many but not all participants, highlighted its role in the successful outcome of the NPT RevCon. There was widespread support for the NPR and its role in developing the foundations for a sustainable nuclear-weapon program that addresses nuclear weapons, infrastructure and expertise in the broader nonproliferation, disarmament and international security contexts. However, some participants raised concerns about its implementation and its long-term effectiveness and sustainability.

  5. 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.

  6. 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.

  7. 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

  8. Chronique Histoire d'orientation 13. Motivation

    E-Print Network [OSTI]

    Vellend, Mark

    Chronique Histoire d'orientation Nota Bene 13. Motivation Service de psychologie et d fin du baccalauréat : à la recherche de la motivation perdue 2. La motivation aux études 3. Le dernier sprint : comment resté motivé en fin de session? 4. Le spleen de la session d'été 5. Motivation ou

  9. Injection Molding Injection Molding Orientation and Design

    E-Print Network [OSTI]

    Colton, Jonathan S.

    ­ 2 degreestypically 0 2 degrees ­ so the part breaks contact with mold all at once, rather than ejection pin area should be used ­ so the parts don't break · Simplify molds ­ reduce costsreduce costsInjection Molding ­Injection Molding Orientation and Design R lRules ver. 1 1ME 6222: Manufacturing

  10. 8 THE ORIENTAL INSTITUTE The Epigraphic

    E-Print Network [OSTI]

    Scherer, Norbert F.

    Coptic Easter and the Egyptian national spring holiday. Organized to introduce Egyptian and American businessmen and their families living in Cairo to the im- portant role played by the Epi- graphic Survey came to our library repre- sented some 80 institutions located in 20 countries. From the Oriental

  11. Integrated Pedestrian Classification and Orientation Estimation

    E-Print Network [OSTI]

    Gavrila, Dariu M.

    Integrated Pedestrian Classification and Orientation Estimation Markus Enzweiler1 Dariu M. Gavrila2, The Netherlands Abstract This paper presents a novel approach to single-frame pedestrian classification) in a Bayesian fashion. This mixture-of-experts formulation approximates the probability density of pedestrian

  12. CONSUMPTION ORIENTED FREE CAPITALISM Qiudong Wang

    E-Print Network [OSTI]

    Wang, Quidong

    CONSUMPTION ORIENTED FREE CAPITALISM Qiudong Wang The following pages are divided into two parts time-tested means of material production for subsistence. Life is a game of self-preservation in which, the first principle of individual human behavior is the principle of self-interest. Individuals, however

  13. Library Resources New Graduate Student Orientation

    E-Print Network [OSTI]

    Library Resources and Services New Graduate Student Orientation Stony Brook University Libraries Fall, 2008 Janet H. Clarke, Instruction Program #12;Research Resources The library's home page: stonybrook.edu/library/ Our holdings include: · 2 million volumes · 53,600+ e-journals · 300+ online

  14. 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.

  15. 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.

  16. 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.

  17. http://wdrs.fnal.gov/orientation/checklist.pdf DEPARTMENT ORIENTATION CHECKLIST

    E-Print Network [OSTI]

    Quigg, Chris

    , WHEN, AND WHERE? MEET WITH MANAGER STAFF NAME Manager greets employee at new hire orientation, cafeteria/vending, mail station, employee refrigerators/microwaves) Location of Supplies and how and media used Documentation plans or specifications Project Checklists Directory

  18. 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...

  19. Unusual heavy-mass nearly ferromagnetic state with a surprisingly large Wilson ratio in the double layered ruthenates (Sr1-xCax)3Ru2O7

    E-Print Network [OSTI]

    Spinu, Leonard

    13 October 2008; published 14 November 2008 We report an unusual nearly ferromagnetic heavy-mass state with a surprisingly large Wilson ratio Rw e.g., Rw 700 for x=0.2 in double layered ruthenates Sr1 between the reported Curie temperatures: Tc 3 K for the polycrystalline samples14 and Tc 100 K

  20. Colloidal metal particles as probes of nanoscale thermal transport in fluids Orla M. Wilson, Xiaoyuan Hu, David G. Cahill,* and Paul V. Braun

    E-Print Network [OSTI]

    Braun, Paul

    Colloidal metal particles as probes of nanoscale thermal transport in fluids Orla M. WilsonPd nanoparticles as probes of thermal transport in fluids and determine approximate values for the thermal conductance G of the particle/fluid interfaces. Subpicosecond 770 nm optical pulses from a Ti:sapphire mode

  1. 2010-2011 Princeton Graduate Students with Academic Interests in South Asia Shahana Chattaraj, PHD, Woodrow Wilson School, Urban Policy shahanac@princeton.edu

    E-Print Network [OSTI]

    Rowley, Clarence W.

    2010-2011 Princeton Graduate Students with Academic Interests in South Asia Shahana Chattaraj, PHD, Woodrow Wilson School, Urban Policy shahanac@princeton.edu Barret F Bradstreet, Phd, WWS, Security Studies, Indian military strategy bbradstr@princeton.edu Diane L Coffey, Phd, WWS, Population coffey

  2. Wilson, P.A., Lyle, M., and Firth, J.V. (Eds.) Proceedings of the Ocean Drilling Program, Scientific Results Volume 199

    E-Print Network [OSTI]

    Paytan, Adina

    Wilson, P.A., Lyle, M., and Firth, J.V. (Eds.) Proceedings of the Ocean Drilling Program the Paleocene/Eocene (P/E) boundary in sediments from Ocean Drilling Program (ODP) Leg 199 Site 1221 (153 isotopes of barite imply deposition in sulfate-rich pore fluids. Relatively constant reactive P, organic C

  3. Recycling issues facing target and RTL materials of inertial fusion designs L. El-Guebaly, P. Wilson, M. Sawan, D. Henderson, A. Varuttamaseni,

    E-Print Network [OSTI]

    California at San Diego, University of

    . Wilson, M. Sawan, D. Henderson, A. Varuttamaseni, and the ARIES and Z-Pinch Teams Fusion Technology (608) 263-4499 elguebaly@engr.wisc.edu Abstract Designers of heavy ion (HI) and Z-pinch inertial fusion. On the contrary, RTL recycling is a "must" requirement for the Z-pinch concept in order to minimize the RTL

  4. 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.

  5. 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.

  6. 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

  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. Equation of state in 2+1 flavor QCD with improved Wilson quarks by the fixed scale approach

    E-Print Network [OSTI]

    T. Umeda; S. Aoki; S. Ejiri; T. Hatsuda; K. Kanaya; Y. Maezawa; H. Ohno

    2012-06-19

    We study the equation of state in 2+1 flavor QCD with nonperturbatively improved Wilson quarks coupled with the RG-improved Iwasaki glue. We apply the $T$-integration method to nonperturbatively calculate the equation of state by the fixed-scale approach. With the fixed-scale approach, we can purely vary the temperature on a line of constant physics without changing the system size and renormalization constants. Unlike the conventional fixed-$N_t$ approach, it is easy to keep scaling violations small at low temperature in the fixed scale approach. We study 2+1 flavor QCD at light quark mass corresponding to $m_\\pi/m_\\rho \\simeq 0.63$, while the strange quark mass is chosen around the physical point. Although the light quark masses are heavier than the physical values yet, our equation of state is roughly consistent with recent results with highly improved staggered quarks at large $N_t$.

  14. 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.

  15. An object-oriented framework to organize genomic data 

    E-Print Network [OSTI]

    Wei, Ning

    2009-05-15

    interface. A genome object-oriented framework (GOOF) was proposed with object-oriented Java technology and is independent of any database system. This framework seamlessly links the database system and web presentation components. The data models of GOOF...

  16. SAF 114O Laser Safety Orientation Training | Jefferson Lab

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

    SAF 114O Laser Safety Orientation Training For staff and students: Course: SAF 114O Laser Safety Orientation Date: Tuesday, July 14, 2015 Time: 10:30 - noon Location: CEBAF Center,...

  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. 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.

  19. 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.

  20. 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.

  1. 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.

  2. Controlled placement and orientation of nanostructures

    DOE Patents [OSTI]

    Zettl, Alex K; Yuzvinsky, Thomas D; Fennimore, Adam M

    2014-04-08

    A method for controlled deposition and orientation of molecular sized nanoelectromechanical systems (NEMS) on substrates is disclosed. The method comprised: forming a thin layer of polymer coating on a substrate; exposing a selected portion of the thin layer of polymer to alter a selected portion of the thin layer of polymer; forming a suspension of nanostructures in a solvent, wherein the solvent suspends the nanostructures and activates the nanostructures in the solvent for deposition; and flowing a suspension of nanostructures across the layer of polymer in a flow direction; thereby: depositing a nanostructure in the suspension of nanostructures only to the selected portion of the thin layer of polymer coating on the substrate to form a deposited nanostructure oriented in the flow direction. By selectively employing portions of the method above, complex NEMS may be built of simpler NEMSs components.

  3. Building sustainable ecosystem-oriented architectures

    E-Print Network [OSTI]

    Bassil, Youssef

    2012-01-01

    Currently, organizations are transforming their business processes into e-services and service-oriented architectures to improve coordination across sales, marketing, and partner channels, to build flexible and scalable systems, and to reduce integration-related maintenance and development costs. However, this new paradigm is still fragile and lacks many features crucial for building sustainable and progressive computing infrastructures able to rapidly respond and adapt to the always-changing market and environmental business. This paper proposes a novel framework for building sustainable Ecosystem- Oriented Architectures (EOA) using e-service models. The backbone of this framework is an ecosystem layer comprising several computing units whose aim is to deliver universal interoperability, transparent communication, automated management, self-integration, self-adaptation, and security to all the interconnected services, components, and devices in the ecosystem. Overall, the proposed model seeks to deliver a co...

  4. Transportation Security SensorNet: A Service Oriented Architecture

    E-Print Network [OSTI]

    Kansas, University of

    Transportation Security SensorNet: A Service Oriented Architecture for Cargo Monitoring Martin..........................................................................................................5 E. Globus - Open Grid Services Architecture

  5. Action-Oriented Benchmarking: Concepts and Tools

    SciTech Connect (OSTI)

    California Energy Commission; Mathew, Paul; Mills, Evan; Mathew, Paul; Piette, Mary Ann; Bourassa, Norman; Brook, Martha

    2008-02-13

    Most energy benchmarking tools provide static feedback on how one building compares to a larger set of loosely similar buildings, without providing information at the end-use level or on what can be done to reduce consumption, cost, or emissions. In this article--Part 1 of a two-part series--we describe an 'action-oriented benchmarking' approach, which extends whole-building energy benchmarking to include analysis of system and component energy use metrics and features. Action-oriented benchmarking thereby allows users to generate more meaningful metrics and to identify, screen and prioritize potential efficiency improvements. This opportunity assessment process can then be used to inform and optimize a full-scale audit or commissioning process. We introduce a new web-based action-oriented benchmarking system and associated software tool-EnergyIQ. The benchmarking methods, visualizations, and user interface design are informed by an end-user needs assessment survey and best-practice guidelines from ASHRAE.

  6. Oriented Nanostructures for Energy Conversion and Storage

    SciTech Connect (OSTI)

    Liu, Jun; Cao, Guozhong H.; Yang, Zhenguo; Wang, Donghai; DuBois, Daniel L.; Zhou, Xiao Dong; Graff, Gordon L.; Pederson, Larry R.; Zhang, Jiguang

    2008-08-28

    Recently the role of nanostructured materials in addressing the challenges in energy and natural resources has attracted wide attention. In particular, oriented nanostructures have demonstrated promising properties for energy harvesting, conversion and storage. The purpose of the paper is to review the synthesis and application of oriented nanostructures in a few key areas of energy technologies, namely photovoltaics, batteries, supercapacitors and thermoelectrics. Although the applications differ from field to field, one of the fundamental challenges is to improve the generation and transport of electrons and ions. We will first briefly review the several major approaches to attain oriented nanostructured films that are applicable for energy applications. We will then discuss how such controlled nanostructures can be used in photovoltaics, batteries, capacitors, thermoelectrics, and other unconventional ways of energy conversion. We will highlight the role of high surface area to maximize the surface activity, and the importance of optimum dimension and architecture, controlled pore channels and alignment of the nanocrystalline phase to optimize the electrons and ion transport. Finally, the paper will discuss the challenges in attaining integrated architectures to achieve the desired performance. Brief background information will be provided for the relevant technologies, but the emphasis is focused mainly on the nanoeffects of mostly inorganic based materials and devices.

  7. ORIGINAL PAPER Peacocks orient their courtship displays towards the sun

    E-Print Network [OSTI]

    Montgomerie, Bob

    ORIGINAL PAPER Peacocks orient their courtship displays towards the sun Roslyn Dakin & Robert on male orientation relative to the position of the sun. During the "wing-shaking" display, females were generally behind the displaying male, and male orientation with respect to the position of the sun

  8. A Framework for Object Oriented Hardware Specification, Verification, and Synthesis*

    E-Print Network [OSTI]

    Ould Ahmedou, Mohameden

    A Framework for Object Oriented Hardware Specification, Verification, and Synthesis* T. Kuhn, T of hardware. For this purpose the object oriented language `e' is introduced along with a powerful run Object oriented hardware modeling, verification, high-level synthesis. 1. INTRODUCTION The ever

  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. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  1. 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

  2. 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...

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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.

  10. 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

  11. 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.

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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.

  17. 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

  18. 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

  19. 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;

  20. 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

  1. 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

  2. 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.

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  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. Biomimetic processing of oriented crystalline ceramic layers

    SciTech Connect (OSTI)

    Cesarano, J.; Shelnutt, J.A.

    1997-10-01

    The aim of this project was to develop the capabilities for Sandia to fabricate self assembled Langmuir-Blodgett (LB) films of various materials and to exploit their two-dimensional crystalline structure to promote the growth of oriented thin films of inorganic materials at room temperature. This includes the design and synthesis of Langmuir-active (amphiphilic) organic molecules with end groups offering high nucleation potential for various ceramics. A longer range goal is that of understanding the underlying principles, making it feasible to use the techniques presented in this report to fabricate unique oriented films of various materials for electronic, sensor, and membrane applications. Therefore, whenever possible, work completed in this report was completed with the intention of addressing the fundamental phenomena underlying the growth of crystalline, inorganic films on template layers of highly organized organic molecules. This problem was inspired by biological processes, which often produce exquisitely engineered structures via templated growth on polymeric layers. Seashells, for example, exhibit great toughness owing to their fine brick-and-mortar structure that results from templated growth of calcium carbonate on top of layers of ordered organic proteins. A key goal in this work, therefore, is to demonstrate a positive correlation between the order and orientation of the template layer and that of the crystalline ceramic material grown upon it. The work completed was comprised of several parallel efforts that encompassed the entire spectrum of biomimetic growth from solution. Studies were completed on seashells and the mechanisms of growth for calcium carbonate. Studies were completed on the characterization of LB films and the capability developed for the in-house fabrication of these films. Standard films of fatty acids were studied as well as novel polypeptides and porphyrins that were synthesized.

  14. Microsoft Word - ISDAC_orientation_pkt.doc

    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 wouldMass map shines light on77 PAGE OF PAGESpersonal CERTIFIED MAIL43 PART56ORIENTATION PACKAGE

  15. On broken zero modes of a string world sheet, and a correlation function of a 1/4 BPS Wilson loop and a 1/2 BPS local operator

    E-Print Network [OSTI]

    Miwa, Akitsugu

    2015-01-01

    We reconsider a gravity dual of a 1/4 BPS Wilson loop. In the case of an expectation value of the Wilson loop, it is known that broken zero modes of a string world sheet in the gravity side play important roles in the limit $\\lambda \\to \\infty$ with keeping the combination $\\lambda \\cos^2 \\theta_0$ finite. Here, $\\lambda$ is the 't Hooft coupling constant and $\\theta_0$ is a parameter of the Wilson loop. In this paper, we reconsider a gravity dual of a correlation function between the Wilson loop and a 1/2 BPS local operator with R charge $J$. We take account of contributions coming from the same configurations of the above-mentioned broken zero modes. We find an agreement with the gauge theory side in the limit $J \\ll \\sqrt{\\lambda \\cos^2 \\theta_0} $.

  16. Determining orientation and direction of DNA sequences

    DOE Patents [OSTI]

    Goodwin, Edwin H. (Los Alamos, NM); Meyne, Julianne (Los Alamos, NM)

    2000-01-01

    Determining orientation and direction of DNA sequences. A method by which fluorescence in situ hybridization can be made strand specific is described. Cell cultures are grown in a medium containing a halogenated nucleotide. The analog is partially incorporated in one DNA strand of each chromatid. This substitution takes place in opposite strands of the two sister chromatids. After staining with the fluorescent DNA-binding dye Hoechst 33258, cells are exposed to long-wavelength ultraviolet light which results in numerous strand nicks. These nicks enable the substituted strand to be denatured and solubilized by heat, treatment with high or low pH aqueous solutions, or by immersing the strands in 2.times.SSC (0.3M NaCl+0.03M sodium citrate), to name three procedures. It is unnecessary to enzymatically digest the strands using Exo III or another exonuclease in order to excise and solubilize nucleotides starting at the sites of the nicks. The denaturing/solubilizing process removes most of the substituted strand while leaving the prereplication strand largely intact. Hybridization of a single-stranded probe of a tandem repeat arranged in a head-to-tail orientation will result in hybridization only to the chromatid with the complementary strand present.

  17. Heavy-Quark Free Energy, Debye Mass, and Spatial String Tension at Finite Temperature in Two Flavor Lattice QCD with Wilson Quark Action

    E-Print Network [OSTI]

    WHOT-QCD Collaboration; :; Y. Maezawa; N. Ukita; S. Aoki; S. Ejiri; T. Hatsuda; N. Ishii; K. Kanaya

    2007-02-13

    We study Polyakov loop correlations and spatial Wilson loop at finite Temperature in two-flavor QCD simulations with the RG-improved gluon action and the clover-improved Wilson quark action on a $ 16^3 \\times 4$ lattice. From the line of constant physics at $m_{\\rm PS}/m_{\\rm V}=0.65$ and 0.80, we extract the heavy-quark free energies, the effective running coupling $g_{\\rm eff}(T)$ and the Debye screening mass $m_D(T)$ for various color channels of heavy quark--quark and quark--anti-quark pairs above the critical temperature. The free energies are well approximated by the screened Coulomb form with the appropriate Casimir factors at high temperature. The magnitude and the temperature dependence of the Debye mass are compared to those of the next-to-leading order thermal perturbation theory and to a phenomenological formula in terms of $g_{\\rm eff}(T)$. We make a comparison between our results with the Wilson quark action and the previous results with the staggered quark action. The spatial string tension is also studied in the high temperature phase and is compared to the next-to-next-leading order prediction in an effective theory with dimensional reduction.

  18. Precision calculation of 1/4-BPS Wilson loops in AdS$_5\\times S^5$

    E-Print Network [OSTI]

    Forini, V; Griguolo, L; Seminara, D; Vescovi, E

    2015-01-01

    We study the strong coupling behaviour of $1/4$-BPS circular Wilson loops (a family of "latitudes") in ${\\cal N}=4$ Super Yang-Mills theory, computing the one-loop corrections to the relevant classical string solutions in AdS$_5\\times$S$^5$. Supersymmetric localization provides an exact result that, in the large 't Hooft coupling limit, should be reproduced by the sigma-model approach. To avoid ambiguities due to the absolute normalization of the string partition function, we compare the $ratio$ between the generic latitude and the maximal 1/2-BPS circle: Any measure-related ambiguity should simply cancel in this way. We use Gel'fand-Yaglom method to calculate the relevant functional determinants, that present some complications with respect to the standard circular case. After a careful numerical evaluation of our final expression we still find disagreement with the localization answer: The difference is encoded into a precise "remainder function". We comment on the possible origin and resolution of this dis...

  19. 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

  20. 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 ...

  1. 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

  2. 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, ...

  3. 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 ...

  4. 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 ...

  5. 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

  6. 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

  7. 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...

  8. User-orientated comparative analysis of climate compatible development...

    Open Energy Info (EERE)

    comparative analysis of climate compatible development planning methodologies and tools Jump to: navigation, search Name User-orientated comparative analysis of climate...

  9. Why Do Building Owners Invest in Bicycle-Oriented Design?

    E-Print Network [OSTI]

    Orrick, Phyllis; Trapenberg Frick , Karen; Ragland, Davi

    2011-01-01

    available sources for BOD design elements. RECOMMENDATION Weand best practices of BOD design elements would be useful toelements comprise what we are calling “bicycle-oriented design” (

  10. DAME: a Web Oriented Infrastructure for Scientific Data Mining & Exploration

    E-Print Network [OSTI]

    Longo, Giuseppe

    DAME: a Web Oriented Infrastructure for Scientific Data Mining & Exploration Massimo Bresciaa (DAta Mining & Exploration) is an innovative, general purpose, Web-based, VObs compliant, distributed

  11. An Object-Oriented Algebraic Steam-Boiler Control Specification

    E-Print Network [OSTI]

    Ã?lveczky, Peter Csaba

    An Object-Oriented Algebraic Steam-Boiler Control Specification computations cannot happen. 1 Introduction The steam-boiler control specification problem has been

  12. Sustainable Land Management Through Market-Oriented Commodity...

    Open Energy Info (EERE)

    Sustainable Land Management Through Market-Oriented Commodity Development: Case studies from Ethiopia Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Sustainable Land...

  13. Why Do Building Owners Invest in Bicycle-Oriented Design?

    E-Print Network [OSTI]

    Orrick, Phyllis; Trapenberg Frick, Karen; Ragland, David R

    2011-01-01

    Building Owners Invest in Bicycle-Oriented Design? Phyllisof California, Berkeley ISSUE Bicycle infrastructure designhas largely emphasized bicycle lanes and paths, with little

  14. In-plane orientation effects on the electronic structure stability...

    Office of Scientific and Technical Information (OSTI)

    effects on the electronic structure stability and Raman scattering of monolayer graphene on Ir(111). Citation Details In-Document Search Title: In-plane orientation effects...

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. 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.