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Sample records for meeting hall convention

  1. Town Hall meeting | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    picture Submitted by Graham7781(2017) Super contributor 16 November, 2012 - 11:23 LEDS the focus of Monday's 10 a.m. Town Hall Meeting LEDS Town Hall meeting What: OpenEI's...

  2. Parametric Investigations of Non-Conventional Hall Thruster

    SciTech Connect

    Raitses, Y.; Fisch, N.J.

    2001-01-12

    Hall thrusters might better scale to low power with non-conventional geometry. A 9 cm cylindrical, ceramic-channel, Hall thruster with a cusp-type magnetic field distribution has been investigated. It exhibits discharge characteristics similar to conventional coaxial Hall thrusters, but does not expose as much channel surface. Significantly, its operation is not accompanied by large amplitude discharge low frequency oscillations.

  3. OSDBU Federal Contracting Town Hall Meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    In June of 2015, John Hale III, Director of the Office of Small and Disadvantaged Business Utilization, served as the moderator for the Federal Contracting Town Hall Meeting during the CelebrAsian...

  4. OpenEI Community - Town Hall meeting

    OpenEI (Open Energy Information) [EERE & EIA]

    st, 2012 http:en.openei.orgcommunityblogtown-hall-meeting-october-1st-2012

  5. Town_Hall_Meeting_10_29_15.pdf

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Town Hall with Secretary Moniz Town Hall with Secretary Moniz July 18, 2013 - 3:42pm Addthis Secretary Moniz speaks at a townhall with DOE employees on the Departmental reorganization. Dan Leistikow Dan Leistikow Former Director, Office of Public Affairs 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

  6. 06.27.14 SRS Retirees Town Hall Meeting-Dave Hepner Page...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Meeting-Dave Hepner Page 1 SRSRA TOWN HALL MEETING New Ellenton Community Center JUNE 27, 2014 After reviewing the notes and discussing the Town Hall Meeting held on June 27, 2014,...

  7. EM Contributes to Joint Convention Meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    EM officials recently participated in the Fifth Review Meeting of the Parties to the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management (Joint Convention) at the International Atomic Energy Agency (IAEA) headquarters.

  8. Meeting Notes re NOI for Convention on Supplementary Compensation |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Notes re NOI for Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation notes from meeting on Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation (45.83 KB) More Documents & Publications Convention on Supplementary Compensation for Nuclear Damage Contingent Cost Allocation Public comment re Convention on Supplementary Compensation on Nuclear Damage Contingent

  9. LEDS the focus of Monday's 10 a.m. Town Hall Meeting | OpenEI...

    OpenEI (Open Energy Information) [EERE & EIA]

    LEDS the focus of Monday's 10 a.m. Town Hall Meeting Home > Blogs > Graham7781's blog Graham7781's picture Submitted by Graham7781(2017) Super contributor 16 November, 2012 - 11:23...

  10. Town Hall Meeting October 1st, 2012 | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    Town Hall Meeting October 1st, 2012 Home > Blogs > Graham7781's blog Graham7781's picture Submitted by Graham7781(2017) Super contributor 19 September, 2012 - 13:40 OpenEI Town...

  11. Jefferson Lab Experimental Hall D

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hall D Information Hall D General Information Hall D / GlueX Meetings Calendar (Regina) Hall D Civil - selected drawings (pdf) Hall D equipment location - selected drawings (pdf) Hall D Basic Equipment Description on Hall D Wiki JLab Experimental Schedule Schedule: ENP page the current schedule and the scheduling procedures Schedule: Accelerator page Run Information Hall D Runs Current/latest run: Oct 8 - Dec 21 2016 Shift Schedule and Sign-Up Safety documents and training GlueX Collaboration

  12. Microsoft PowerPoint - WIPP Town Hall Meeting 9-3-15

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    September 3, 2015 www.energy.gov/EM 2 Agenda * Opening comments - Jay Jenkins * Meeting moderator - Tim Runyon * Update on WIPP activities - Dana Bryson * Radiation presentation - Walter MacMillan * Audience questions * In house * Internet * Closing comments - Dana Bryson www.energy.gov/EM 3 Update on CBFO and WIPP Activities Dana Bryson, Acting CBFO Manager www.energy.gov/EM 4 Interim Ventilation System * Repaired fan/filter units have been received at the WIPP site * Units will be installed on

  13. ARM - Welcome to Study Hall

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox ...

  14. Miles Hall

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Miles Hall is a technical business development contractor supporting Wind Energy & Water Power Technologies. He was born and raised in Portland, Oregon, and earned bachelor's ...

  15. Cylindrical geometry hall thruster

    DOEpatents

    Raitses, Yevgeny; Fisch, Nathaniel J.

    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.

  16. Town Hall with Secretary Moniz | Department of Energy

    Energy.gov [DOE] (indexed site)

    Secretary Moniz speaks at a townhall with DOE employees on the Departmental ... In a town hall meeting with Department staff, Energy Secretary Ernest Moniz spoke about ...

  17. Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    BPA Outage Coordination Presentation NOA - General References Guide Draft NOC Charter Demand Response NOC Meeting Notes - 6122014 April 23, 2014 NT Redispatch Meeting NT...

  18. The Hall

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hall dynamo effect and nonlinear mode coupling during sawtooth magnetic reconnection W. X. Ding, 1,2 D. L. Brower, 1,2 B. H. Deng, 1 A. F. Almagri, 2,3 D. Craig, 2,3 G. Fiksel, 2,3 V. Mirnov, 2,3 S. C. Prager, 2,3 J. S. Sarff, 2,3 and V. Svidzinski 2,3 1 Electrical Engineering Department, University of California at Los Angeles, Los Angeles, California 90095 2 Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin-Madison, Madison, Wisconsin 53706

  19. Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Commercial Business Process Improvement (CBPI) Customer Forum Energy Imbalance Market Generator Interconnection Reform Implementation Meetings Customer Comments Network Integration...

  20. Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Projects Expand Projects Skip navigation links Ancillary and Control Area Services (ACS) Practices Forum Meetings Customer Comments Attachment K Commercial Business Process...

  1. Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Season Reform Customer Meeting September 20, 2012 Agenda NOS Preliminary Future State Model Financial Requirements Financial Analysis for NOS Reform: CIFA Assumptions Eligibility...

  2. Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    is available on the BPA Event Calendar. 2013 Network Open Season Update 2013 NOS Cluster Study Meeting May 20, 2014 Agenda Cluster Study Results Overview Generation...

  3. Fermilab Wilson Hall and Vicinity

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

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

  4. Town Hall with Secretary Moniz

    SciTech Connect

    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.

  5. Town Hall with Secretary Moniz

    ScienceCinema

    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.

  6. WORKFORCE DIVERSITY TOWN HALL

    Energy Saver

    ... fracturing our communities." Secretary Hillary Rodham Clinton WORKFORCE DIVERSITY TOWN HALL Agenda I. Welcome Mel Williams, Jr., Associate Deputy Secretary II. Opening Remarks Dr. ...

  7. Mary Hall Salishan

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    From Hall et al, "Maximizing Multiprocessor Performance with the SUIF Compiler", IEEE Computer, Dec. 1996. 50% higher Specfp95 ratio than previously reported 3 1990s View *...

  8. SubTER Presentation at Town Hall - American Geophysical Union | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Presentation at Town Hall - American Geophysical Union SubTER Presentation at Town Hall - American Geophysical Union Subter, the Subsurface Crosscut at the Energy Department, conducted a Town Hall meeting to share information and create a dialogue regarding the grand challenges of energy production and storage in the subsurface. The event was held at the AGU Fall Meeting in San Francisco on December 15, 2014. Click here to learn more about SubTER. Open the full slide presentation

  9. Hall A Annual Report 2013

    SciTech Connect

    Dalton, Mark M.

    2014-02-01

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

  10. Jefferson Lab Experimental Hall B

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hall B Privacy and Security Notice Skip over navigation search Group Please upgrade your browser. This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Hall B Navigation Hall B Main CLAS CLAS12 Other Expts Run Info Publications Public Interest print version Hall B Main CLAS Collaboration and Hall B CLAS Collaboration Information Phonebook, Opt-in, and Database Reviews and Service Work Login Working Groups

  11. Town Hall Questions Answered

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ...1mkxm7b Town Hall Questions Answered Q. What is the condition of Panel 7 right now? ... for Phase 3 are 5,000 Derived Air Concentration (DAC)hour for workers wearing BG-4 ...

  12. Hall Ammendment Policy

    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."

  13. Town Hall Meeting | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) 5 minutes OpenEI: what's new and coming soon 5...

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

    Office of Scientific and Technical Information (OSTI)

    to an Isolated MoS2 Trilayer Title: Unconventional Quantum Hall Effect and Tunable Spin Hall Effect in Dirac Materials: Application to an Isolated MoS2 Trilayer Authors: Li, ...

  15. Experimental Hall C | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    C Jefferson Lab has four experimental halls. Hall C is 150 feet in diameter and 60 feet tall. Hall C houses a High Momentum Spectrometer and provides space for large-installation experiments. These are stand-alone experiments requiring unique or highly specialized detectors, magnets and targeting systems. The research equipment 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

  16. Modeling the Hall Thruster

    SciTech Connect

    Fisch, N.J.; Fruchtman, A.

    1998-08-01

    The acceleration of the plasma in the Hall thruster to supersonic velocities is examined by the use of a steady state model. Flows that are smooth across the sonic transition plane are found. The possibility of generating flows in which the acceleration across the sonic plane is abrupt, is also studied.

  17. Experimental Hall A | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    A Jefferson Lab has four experimental halls. Hall A is the largest of these four experimental staging areas. It is 174 feet across and 80 feet tall from the floor to the highest spot on its domed ceiling. The foundation for the hall is 35 feet below ground. Hall A is outfitted with two primary detector systems - both high-resolution spectrometers, each weighing about 3 million pounds or 1,500 short tons. The hall is used primarily for experiments that study the structure of the nucleus and the

  18. AFN Convention

    Energy.gov [DOE]

    The Alaska Federation of Natives (AFN) Convention is the largest representative annual gathering in the United States of any Native peoples.

  19. Fast Camera Imaging of Hall Thruster Ignition

    SciTech Connect

    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 μs. The cathode introduces azimuthal asymmetry, which persists for about 30 μs 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

  20. Experimental Hall B | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    B Jefferson Lab has four experimental halls. Hall B is the smallest of the experimental staging areas. It is 98 feet in diameter and 65 feet from floor to ceiling. Experiments that 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 Spectrometer, or CLAS. This detector system spanned nearly the full angular range about the target and was specifically developed for the study of

  1. Experimental Hall D | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    D A fourth experimental hall, known as Hall D, is currently under construction and is scheduled to begin experiments in 2015. The Hall D project consists of an extension to the accelerator tunnel to house a new beam transport line, a dedicated magnet to tag photons created in beam-target interactions, a counting house, cryogenics plant and service buildings. When it is completed, Hall D will make it possible for scientists to study what are known as exotic mesons or hybrids. You can learn more

  2. Directions to Wilson Hall, Fermilab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    in Wilson Hall, the central laboratory building of Fermi National Accelerator Laboratory, as shown on the map below. Ramsey Auditorium is located at the south end of Wilson ...

  3. Experimental Hall B | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    and electromagnetic calorimeters for electron and neutral particle identification. Major research programs in Hall B include experiments to measure the spectrum of excited ...

  4. Magnetometry of micro-magnets with electrostatically defined Hall bars

    SciTech Connect

    Lachance-Quirion, Dany; Camirand Lemyre, Julien; Bergeron, Laurent; Sarra-Bournet, Christian; Pioro-Ladrière, Michel

    2015-11-30

    Micro-magnets are key components for quantum information processing with individual spins, enabling arbitrary rotations and addressability. In this work, characterization of sub-micrometer sized CoFe ferromagnets is performed with Hall bars electrostatically defined in a two-dimensional electron gas. Due to the ballistic nature of electron transport in the cross junction of the Hall bar, anomalies such as the quenched Hall effect appear near zero external magnetic field, thus hindering the sensitivity of the magnetometer to small magnetic fields. However, it is shown that the sensitivity of the diffusive limit can be almost completely restored at low temperatures using a large current density in the Hall bar of about 10 A/m. Overcoming the size limitation of conventional etched Hall bars with electrostatic gating enables the measurement of magnetization curves of 440 nm wide micro-magnets with a signal-to-noise ratio above 10{sup 3}. Furthermore, the inhomogeneity of the stray magnetic field created by the micro-magnets is directly measured using the gate-voltage-dependent width of the sensitive area of the Hall bar.

  5. Joint Convention | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Joint Convention U.S. Leads Fifth International Review Meeting on the Safety of Spent Fuel and Radioactive Waste Management at the IAEA VIENNA, AUSTRIA - Today, representatives...

  6. Anthony Kathryn Hall | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Anthony Kathryn Hall Jump to: navigation, search Name: Anthony & Kathryn Hall Place: United Kingdom Sector: Wind energy Product: UK-based private wind farm in Highland. References:...

  7. Second Generation Fractional Quantum Hall Effect

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Generation Fractional Quantum Hall Effect - Sandia Energy Energy Search Icon Sandia Home ... Second Generation Fractional Quantum Hall Effect HomeHighlights - Energy Research...

  8. QER- Comment of Addison Hall

    Energy.gov [DOE]

    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.

  9. ARM - Meet Our Friends

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Friends Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Meet Our Friends Who's PI Prairie Dog PI Prairie Dog is a scientist known as a "principal investigator." He lives in the western United States in a large prairie dog colony called a town or village. An undisturbed colony can

  10. DRAFT EM SSAB Chairs Meeting Waste Disposition Strategies...

    Office of Environmental Management (EM)

    and restart. * Town hall meetings are utilized to keep the community informed; to stay apprised go to: http:www.wipp.energy.gov * Live streaming of the meetings can be...

  11. NUG Meeting June 24-25, 2004 (Berkeley, CA)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NUG Meeting June 24-25, 2004 (Berkeley, CA) Dates June 24-25, 2004 Location Lawrence Berkeley National Laboratory 1 Cyclotron Road Building 54, Conference Room 130 (Perseverance Hall) Berkeley, CA Presentations Agenda NERSC User Group (NUG) Meeting June 24-25, 2004 at Berkeley Lab The Spring 2004 NUG Meeting took place on Thursday, June 24 (training day) and Friday, June 25 (business meeting), in Building 54, Conference Room 130 (Perseverance Hall). Training Day Lecture Materials Time Title

  12. ERSUG Meeting: January 28-29, 1997 (Berkeley, CA)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ERSUG Meeting: January 28-29, 1997 (Berkeley, CA) Dates January 28-29, 1997 Location Lawerence Berkeley Nantional Laboratory Perserverence Hall 1 Cyclotron Road Berkeley, CA 94720 Presentations Agenda ERSUG Business Meeting Special Special Pre-ERSUG-meeting Training Day: Monday, January 27, 1997 ERSUG Meeting (Day 1) January 28th Tuesday, Perseverance Hall Time Topic Speaker 8:30 Pickup from Hotel 9:00 Welcome Klaus Berkner - Associate Laboratory Director, Berkeley Lab 9:10 Agenda Review Ricky

  13. Tuning giant anomalous Hall resistance ratio in perpendicular Hall balance

    SciTech Connect

    Zhang, J. Y.; Yang, G.; Wang, S. G. E-mail: ghyu@mater.ustb.edu.cn; Liu, J. L.; Wang, R. M.; Amsellem, E.; Kohn, A.; Yu, G. H. E-mail: ghyu@mater.ustb.edu.cn

    2015-04-13

    Anomalous Hall effect at room temperature in perpendicular Hall balance with a core structure of [Pt/Co]{sub 4}/NiO/[Co/Pt]{sub 4} has been tuned by functional CoO layers, where [Pt/Co]{sub 4} multilayers exhibit perpendicular magnetic anisotropy. A giant Hall resistance ratio up to 69 900% and saturation Hall resistance (R{sub S}{sup P}) up to 2590 mΩ were obtained in CoO/[Pt/Co]{sub 4}/NiO/[Co/Pt]{sub 4}/CoO system, which is 302% and 146% larger than that in the structure without CoO layers, respectively. Transmission electron microscopy shows highly textured [Co/Pt]{sub 4} multilayers and oxide layers with local epitaxial relations, indicating that the crystallographic structure has significant influence on spin dependent transport properties.

  14. Sec. Chu Online Town Hall

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  15. Experimental Hall C | Jefferson Lab

    U.S. Department of Energy (DOE) - all 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....

  16. Science and Energy Town Hall

    Energy.gov [DOE]

    Watch a live broadcast of the Science & Energy Town Hall on Wednesday, January 20, 2016 from 2:30 p.m. to 3:30 p.m. EST.

  17. Optimization of Cylindrical Hall Thrusters

    SciTech Connect

    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. __________________________________________________

  18. Optimization of Cylindrical Hall Thrusters

    SciTech Connect

    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.

  19. Multi-Probe Diagnostic Hall

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Multi-Probe Diagnostic Hall Multi-Probe Diagnostic Hall Enabling multiple, simultaneous measurements at the micron frontier to address various applications, such as 3D experimental microstructural quantification in extreme environments, multiscale fluid dynamics, or extreme electromagnetic field interactions with matter. CONTACT Mike Stevens (505) 667-5113 Email Enabling Multiple, Simultaneous Measurements at the Micron Frontier The performance of materials in dynamics extremes, also known as

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

    SciTech Connect

    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.

  1. Hall C Safety Awareness Training Updated | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hall C Safety Awareness Training Updated Hall C Safety Awareness Training Updated: Current Training Expires Sept. 1 Due to the new configuration of Hall C, the Safety Awareness ...

  2. Public Assembly | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    whether in private or non-private meeting halls. Sub Categories social or meeting (e.g. community center, lodge, meeting hall, convention center, senior center); recreation...

  3. Spin Hall controlled magnonic microwaveguides

    SciTech Connect

    Demidov, V. E.; Urazhdin, S.; Rinkevich, A. B.; Reiss, G.; Demokritov, S. O.

    2014-04-14

    We use space-resolved magneto-optical spectroscopy to study the influence of spin Hall effect on the excitation and propagation of spin waves in microscopic magnonic waveguides. We find that the spin Hall effect not only increases the spin-wave propagation length, but also results in an increased excitation efficiency due to the increase of the dynamic susceptibility in the vicinity of the inductive antenna. We show that the efficiency of the propagation length enhancement is strongly dependant on the type of the excited spin-wave mode and its wavelength.

  4. Jefferson Lab Experimental Hall C

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    C Privacy and Security Notice Skip over navigation search Group This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Hall C Navigation Users Public Interest print version HES, HKS and Splitter Qweak spectrometer used to measure proton weak charge 12 GeV Upgrade Upgrade information 12 GeV Experiments SHMS-HMS User's Group User's Group mailing list Newsletter 12 GeV wiki Hall C Collaboration Information

  5. Meeting Summary Notes | Department of Energy

    Office of Environmental Management (EM)

    Department of Energy Notes re NOI for Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation notes from meeting on Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation (45.83 KB) More Documents & Publications Convention on Supplementary Compensation for Nuclear Damage Contingent Cost Allocation Public comment re Convention on Supplementary Compensation on Nuclear Damage Contingent

  6. 2016 CAMD User Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    CAMD 2016 User Meeting Friday, April 29th, 2016 CAMD, 6980 Jefferson Highway, Baton Rouge, LA 70806 The CAMD 2016 User Meeting will be held on Friday, April 29th at CAMD, 6980 Jefferson Highway, Baton Rouge, LA 70806. There will be a "Celebration of MPW" in the morning, coinciding with a poster session in the Experimental Hall starting at 10:30 AM. Beamline scientists will be on hand to explain the new features of the multi-pole wiggler beamlines. Lunch will be provided before the

  7. Anomalous Hall effect in magnetic disordered alloys: Effects of spin orbital coupling

    SciTech Connect

    Ma, L.; Gao, W. B.; Zhou, S. M.; Shi, Z.; He, P.; Miao, J.; Jiang, Y.

    2013-12-28

    For disordered ternary Fe{sub 0.5}(Pd{sub 1−x}Pt{sub x}){sub 0.5} alloy films, the anomalous Hall effect obeys the conventional scaling law ρ{sub AH}=aρ{sub xx}+bρ{sub xx}{sup 2} with the longitudinal resistivity ρ{sub xx} and anomalous Hall resistivity ρ{sub AH}. Contributed by the intrinsic term and the extrinsic side-jump one, the scattering-independent anomalous Hall conductivity b increases with increasing Pt/Pd concentration. In contrast, the skew scattering parameter a is mainly influenced by the residual resistivity. The present results will facilitate the theoretical studies of the anomalous Hall effect in magnetic disordered alloys.

  8. QER Public Meeting in San Francisco: The Water-Energy Nexus ...

    Energy Saver

    QER Public Meeting in San Francisco: The Water-Energy Nexus QER Public Meeting in San Francisco: The Water-Energy Nexus June 19, 2014 1:00PM to 9:00PM PDT San Francisco City Hall ...

  9. Focus Group Meeting (Topical Meeting)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Topical Meeting - Training Meeting agenda, summary and information package Meeting Date: April 30, 2008

  10. San Francisco QER Meeting Video | Department of Energy

    Energy.gov [DOE] (indexed site)

    QER Public Meeting in San Francisco, CA: The Water-Energy Nexus June 19, 2014 - 9:00 A.M. PST San Francisco City Hall, Mayor's Conference Room (Room 201) 1 Dr. Carlton B. Goodlett ...

  11. The fluctuation induced Hall effect

    SciTech Connect

    Shen, W.; Prager, S.C.

    1993-02-01

    The fluctuation induced Hall term, [le][approximately][ovr J] [times] [approximately][ovr B][ge], has been measured in the MST reversed field pinch. The term is of interest as a possible source of current self-generation (dynamo). It is found to be non-negligible, but small in that it can account for less than 25% of the dynamo driven current.

  12. The fluctuation induced Hall effect

    SciTech Connect

    Shen, W.; Prager, S.C.

    1993-02-01

    The fluctuation induced Hall term, {le}{approximately}{ovr J} {times} {approximately}{ovr B}{ge}, has been measured in the MST reversed field pinch. The term is of interest as a possible source of current self-generation (dynamo). It is found to be non-negligible, but small in that it can account for less than 25% of the dynamo driven current.

  13. Public comment re Convention on Supplementary Compensation on...

    Office of Environmental Management (EM)

    of 2007 DOE Notice of Inquiry on the Convention on Supplementary Compensation for Nuclear Damage (CSC) Contingent Cost Allocation - March 2, 2011 Meeting with CIGNL Exelon response

  14. D0 Collision Hall Outdoor Fresh Air Makeup

    SciTech Connect

    Markley, D.; /Fermilab

    1992-03-27

    This note will briefly describe the collision hall ventilation system and how D0 will monitor outside air makeup and what actions occur in the event of system failures. The Dzero collision hall has two different fresh air makeup conditions it must meet. They are: (1) Tunnel Barriers removed-Fresh air makeup = 4500 CFM; and (2) Tunnel Barriers in place-Fresh air makeup = 2800 CFM. This note demonstrates how the fresh air minimums are met and guaranteed. The air flow paths and ducts at D0 for both AHU1 and EF-7 are fixed. The blower throughputs are not variable. The software stops on AHU1's dampers will be set for a minimum of 2800 cfm or 4500 cfm of outdoor air continuously added to the HVAC flow stream depending on the tunnel barrier state. AHU1 and EF-7 both have monitoring that can determine reliably as to whether the respective blower is on or off. Since the outside air makeup is fixed as long as the blowers are running, and the software AHU1 damper limits are set, we can rely on the blower status indicators to determine as to whether the collision hall is receiving the proper amount of outside makeup air.

  15. Henderson Hall's Education and Career Fair

    Energy.gov [DOE]

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

  16. Building Green in Greensburg: City Hall Building

    Energy.gov [DOE]

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

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

    SciTech Connect

    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.

  18. Hall-effect arc protector

    DOEpatents

    Rankin, R.A.; Kotter, D.K.

    1997-05-13

    The Hall-Effect Arc Protector is used to protect sensitive electronics from high energy arcs. The apparatus detects arcs by monitoring an electrical conductor, of the instrument, for changes in the electromagnetic field surrounding the conductor which would be indicative of a possible arcing condition. When the magnitude of the monitored electromagnetic field exceeds a predetermined threshold, the potential for an instrument damaging are exists and the control system logic activates a high speed circuit breaker. The activation of the breaker shunts the energy imparted to the input signal through a dummy load to the ground. After the arc condition is terminated, the normal signal path is restored. 2 figs.

  19. Hall-effect arc protector

    DOEpatents

    Rankin, Richard A.; Kotter, Dale K.

    1997-01-01

    The Hall-Effect Arc Protector is used to protect sensitive electronics from high energy arcs. The apparatus detects arcs by monitoring an electrical conductor, of the instrument, for changes in the electromagnetic field surrounding the conductor which would be indicative of a possible arcing condition. When the magnitude of the monitored electromagnetic field exceeds a predetermined threshold, the potential for an instrument damaging are exists and the control system logic activates a high speed circuit breaker. The activation of the breaker shunts the energy imparted to the input signal through a dummy load to the ground. After the arc condition is terminated, the normal signal path is restored.

  20. Portland State University Shattuck Hall

    Building Catalog

    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. 06/11/2015 - 09:23

  1. Microsoft Word - UEC Town_Hall_Meeting_notes.docx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    * John Lange, Legislative Assistant to Congressman Robert Hurt, 5th District VA * Xan Fishman, Legislative Assistant to Congressman John Delany, 6th District MD * Erika Appel,...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    You must login in order to post into this group. Latest blog post comments Mike o spectacular dataset Posted: 9 Aug 2015 - 14:46 by: Mike o Calum Residential idf Files Posted:...

  3. Microsoft Word - Town-Hall-meeting_notes_090215.docx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    State Brian Long-U. Tennessee Yayoi Takamura-University of California, Davis Yang Zhang-U. Illinois (possibly Secretary) Milan Buncick- AEgis Technologies Vice Chair:...

  4. Microsoft Word - Town-Hall-meeting_2014.docx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    (LSPR) spectroscopy Jilai Ding Georgia Institute of Technology Poster 28, Study of Ionic Dynamics in Nanostructured Ceria through Lateral Electrochemical Measurements and Finite...

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

    Energy Saver

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

  6. Charge carrier coherence and Hall effect in organic semiconductors...

    Office of Scientific and Technical Information (OSTI)

    Charge carrier coherence and Hall effect in organic semiconductors Citation Details In-Document Search Title: Charge carrier coherence and Hall effect in organic semiconductors ...

  7. Concept for Reducing Hall Thruster Chamber Wall Erosion with...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Concept for Reducing Hall Thruster Chamber Wall Erosion with Lithium Vapor Shielding. Hall ... This invention addresses these concerns using a lightweight material (liquid lithium) in a ...

  8. Data acquisition system of Moeller polarimeter Hall A Jefferson...

    Office of Scientific and Technical Information (OSTI)

    Data acquisition system of Moeller polarimeter Hall A Jefferson Lab (in Russian) Citation Details In-Document Search Title: Data acquisition system of Moeller polarimeter Hall A ...

  9. Topological Hubbard Model and Its High-Temperature Quantum Hall...

    Office of Scientific and Technical Information (OSTI)

    Topological Hubbard Model and Its High-Temperature Quantum Hall Effect Title: Topological Hubbard Model and Its High-Temperature Quantum Hall Effect Authors: Neupert, Titus ; ...

  10. Quantum Hall effects in a Weyl semimetal: Possible application...

    Office of Scientific and Technical Information (OSTI)

    Quantum Hall effects in a Weyl semimetal: Possible application in pyrochlore iridates Title: Quantum Hall effects in a Weyl semimetal: Possible application in pyrochlore iridates ...

  11. Reduced spin-Hall effects from magnetic proximity (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    Reduced spin-Hall effects from magnetic proximity Prev Next Title: Reduced spin-Hall effects from magnetic proximity Authors: Zhang, Wei ; Jungfleisch, Matthias B. ; Jiang, ...

  12. 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 Citation Details In-Document Search Title: Microscopic theory of quantum anomalous Hall effect in graphene Authors: ...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    B. Places in Hall County, Texas Estelline, Texas Lakeview, Texas Memphis, Texas Turkey, Texas Retrieved from "http:en.openei.orgwindex.php?titleHallCounty,Texas&oldid...

  14. Focus Group Meeting (Topical Meeting)

    Energy.gov [DOE]

    Aging Workforce and Strategic Initiatives Meeting agenda, summary and information package Meeting Date: November 6, 2008

  15. The quantum Hall effect helicity

    SciTech Connect

    Shrivastava, Keshav N.

    2015-04-16

    The quantum Hall effect in semiconductor heterostructures is explained by two signs in the angular momentum j=l±s and g=(2j+1)/(2l+1) along with the Landau factor (n+1/2). These modifications in the existing theories explain all of the fractional charges. The helicity which is the sign of the product of the linear momentum with the spin p.s plays an important role for the understanding of the data at high magnetic fields. In particular it is found that particles with positive sign in the spin move in one direction and those with negative sign move in another direction which explains the up and down stream motion of the particles.

  16. MEETING OVERVIEW

    Office of Environmental Management (EM)

    1999 Meeting MEETING OVERVIEW The Transportation External Coordination Working Group (TECWG) held its 14th semi-annual meeting January 20-22, 1999 in Jacksonville, Florida. ...

  17. NUG Meeting June 3-5, 2002

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NUG Meeting June 3-5, 2002 Dates June 3-5, 2002 Location NERSC's Oakland Scientific Facility 415 20th St. Oakland CA, 94612 Presentations Agenda June 3, 2002, NUG Business Meeting - Agenda The NUG Business Meeting will take place at Berkeley Lab, in Perseverance Hall (Building 54, Room130), which is the conference room annexed to the Lab's cafeteria. 8:00 pastries, fruit, juice, coffee, tea 8:15 Welcome and meeting logistics 8:30 NERSC Update - Implementation of the 5 Year Strategic Proposal -

  18. Lees-Kubota Lecture Hall, Guggenheim 101

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    SPECIAL SEMINAR - Monday, November 3 rd Lees-Kubota Lecture Hall, Guggenheim 101 11:15am-12:15pm "Perovskite Solar Cells: Towards New Materials and New Applications" Professor ...

  19. Experiment Hall & Beamline | Advanced Photon Source

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1104-m-circumference optical bench. The hall floor is made of 1-ft-thick poured concrete. Usual practice in poured concrete construction is the use of evenly spaced cuts in...

  20. DOE2016 Exhibit Hall | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Exhibit Hall DOE2016 Exhibit Hall Addthis 1 of 25 2 of 25 3 of 25 4 of 25 5 of 25 6 of 25 7 of 25 8 of 25 9 of 25 10 of 25 11 of 25 12 of 25 13 of 25 14 of 25 15 of 25 16 of 25 17 of 25 18 of 25 19 of 25 20 of 25 21 of 25 22 of 25 23 of 25 24 of 25 25 of 25

  1. Hypernuclei in Hall C | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Hypernuclei in Hall C Hypernuclei in Hall C High Resolution Electron Spectrometer The High Resolution Electron Spectrometer (teal and red, top left) was recently built with a grant from Japan's Ministry of Education, Culture, Sports, Science and Technology. The ministry also funded the new splitter magnet (dark green) and the High Resolution Kaon Spectrometer (purple and light green, top right). Nuclear scientists have gone to great lengths to pry open the nucleus and peer deep inside. They've

  2. Microsoft PowerPoint - Town Hall Slides 5-15-14 rev.0

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    15, 2014 Meeting Agenda * Opening Comments - Mayor Janway * Panel Member Introductions - John Heaton (Moderator) * CBFO Manager Remarks - Dana Bryson * Update on Phase 3 Activities - Tammy Reynolds * May 10 Entry * Today's Entry * Ventilation System Status * Close-out of Bioassay Program - Jim Stafford * Audience Questions * One question at a time please OPENING COMMENTS Dana Bryson, CBFO Deputy Manager This Week's Events * Joe Franco in Washington * Town Hall Agenda * May 10 and May 15 Entries

  3. Microsoft PowerPoint - Town_Hall_Slides_3_5_15_Final

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Carlsbad Town Hall Meeting Sponsored by the U.S. Department of Energy and the City of Carlsbad, NM March 5, 2015 www.energy.gov/EM 2 Agenda * Opening Comments - Mayor Dale Janway * Update on CBFO and WIPP activities - Dana Bryson * Recovery Status - Tammy Reynolds * Radiological Contamination - Jim Blankenhorn * Audience Questions * In house * Internet * Closing Comments - Dana Bryson www.energy.gov/EM 3 Update on CBFO and WIPP Activities Dana Bryson, CBFO Deputy Manager www.energy.gov/EM 4 *

  4. Focus Group Meeting (Topical Meeting)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Former Worker/Energy Compensation Programs and CAIRS Reporting Meeting agenda, summary and information package Meeting Date: September 16, 2008

  5. 2014 Annual AFN Convention

    Energy.gov [DOE]

    The AFN Convention is the largest representative annual gathering in the United States of any Native peoples. In addition to the memorable keynote speeches, the expert panels and special reports, the Convention features several evenings of cultural performances known as Quyana Alaska.

  6. NCAI Annual Convention

    Energy.gov [DOE]

    The National Congress of American Indians (NCAI) is hosting their annual convention featuring networking events, breakout sessions on resiliency and workforce development, and guest speakers. Pre-registration ends September 18.

  7. Meetings & Minutes

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fiscal Year 2013 NSSAB Meetings Join Us at a NSSAB Meeting All NSSAB Full Board meetings are open to the public. Date Type Time Location Agenda Handouts Minutes Oct 10, 2012...

  8. Meetings & Minutes

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fiscal Year 2014 NSSAB Meetings Join Us at a NSSAB Meeting All NSSAB Full Board meetings are open to the public. Date Type Time Location Agenda Handouts Minutes Oct 2, 2013...

  9. Meetings & Minutes

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fiscal Year 2015 NSSAB Meetings Join Us at a NSSAB Meeting All NSSAB Full Board meetings are open to the public. Date Type Time Location Agenda Handouts Minutes Oct 8, 2014...

  10. Meetings & Minutes

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fiscal Year 2012 NSSAB Meetings Join Us at a NSSAB Meeting All NSSAB Full Board meetings are open to the public. Date Type Time Location Agenda Handouts Minutes Oct 4, 2011 SWEIS...

  11. TBB-0042- In the Matter of Curtis Hall

    Energy.gov [DOE]

    This letter concerns the complaint of retaliation filed by Curtis Hall (the complainant or Mr. Hall) with the Department of Energy under 10 C . F. R. Part 7 0 8 , the DOE Con tractor Employee ...

  12. Jefferson Lab Experimental Hall D: Staff

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    JLab Staff involved in Hall D NAME OFFICE PHONE PAGER/CELL ORG E-MAIL Additional Information Hall D Group Leader Eugene Chudakov 12_1/A111 6959 PHALLD gen@jlab.org Scientific Staff Mark Dalton 12/A121 6931 PHALLD dalton@jlab.org Alexandre Deur 12/A109 7526 PHALLD deurpam@jlab.org Hovanes Egiyan 12/A119 5356 PHALLD hovanes@jlab.org Sergey Furletov 12/A102 5332 PHALLD furletov@jlab.org Mark Ito 12/A104 5295 PHALLD marki@jlab.org David Lawrence 12/A105 5567 PHALLD davidl@jlab.org Lubomir Pentchev

  13. Public Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Public Meetings Individual Permit: Public Meetings Subscribe to receive notifications for semiannual Individual Permit for Storm Water public meetings. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Public meeting notifications LANL will email a draft agenda at least one week before the meeting and will consider suggestions from the public for changes or additions to the agenda. Upcoming Meetings 2016 October 18, 2016

  14. Phase transitions in quantum Hall multiple layer systems

    SciTech Connect

    Pusep, Yu A.; Fernandes dos Santos, L.; Smirnov, D.; Bakarov, A. K.; Toropov, A. I.

    2013-12-04

    Polarized photoluminescence from multiple well electron systems was studied in the regime of the integer quantum Hall effect. Two quantum Hall ferromagnetic ground states assigned to the uncorrelated miniband quantum Hall state and to the spontaneous interwell phase coherent dimer quantum Hall state were observed. The photoluminescence associated with these states exhibits features caused by finite-size skyrmions. The depolarization of the ferromagnetic ground state was observed in bilayer system.

  15. 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

  16. Diversity and Inclusion Town Hall Program Book | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Town Hall Program Book Diversity and Inclusion Town Hall Program Book As part of a larger effort to create a culture that values diversity, we have been conducting focus groups to engage in a dialog and hear feedback on how diversity can be improved. At the Town Hall, DOE employees will hear the results of these discussions. View the program booklet from the Diversity and Inclusion Town Hall below. For more information about the Department's diversity and inclusion programs, visit

  17. Effective Field Theory of Fractional Quantized Hall Nematics (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Journal Article: Effective Field Theory of Fractional Quantized Hall Nematics Citation Details In-Document Search Title: Effective Field Theory of Fractional Quantized Hall Nematics We present a Landau-Ginzburg theory for a fractional quantized Hall nematic state and the transition to it from an isotropic fractional quantum Hall state. This justifies Lifshitz-Chern-Simons theory - which is shown to be its dual - on a more microscopic basis and enables us to compute

  18. Destruction of the Fractional Quantum Hall Effect by Disorder

    DOE R&D Accomplishments

    Laughlin, R. B.

    1985-07-01

    It is suggested that Hall steps in the fractional quantum Hall effect are physically similar to those in the ordinary quantum Hall effect. This proposition leads to a simple scaling diagram containing a new type of fixed point, which is identified with the destruction of the fractional states by disorder. 15 refs., 3 figs.

  19. Fractional Quantization of the Hall Effect

    DOE R&D Accomplishments

    Laughlin, R. B.

    1984-02-27

    The Fractional Quantum Hall Effect is caused by the condensation of a two-dimensional electron gas in a strong magnetic field into a new type of macroscopic ground state, the elementary excitations of which are fermions of charge 1/m, where m is an odd integer. A mathematical description is presented.

  20. Newmark-Hall synthetic history development

    SciTech Connect

    Aramayo, G.A.

    1990-11-01

    The methodology used to develop synthetic acceleration time histories with spectral content that envelopes the Newmark-Hall spectra is described. Six acceleration time histories are developed for two conditions of foundation and 3 critical damping factors. The target spectra corresponds to the mediam centered probability level.

  1. Moderate positive spin Hall angle in uranium

    SciTech Connect

    Singh, Simranjeet; Anguera, Marta; Barco, Enrique del E-mail: cwmsch@rit.edu; Springell, Ross; Miller, Casey W. E-mail: cwmsch@rit.edu

    2015-12-07

    We report measurements of spin pumping and the inverse spin Hall effect in Ni{sub 80}Fe{sub 20}/uranium bilayers designed to study the efficiency of spin-charge interconversion in a super-heavy element. We employ broad-band ferromagnetic resonance on extended films to inject a spin current from the Ni{sub 80}Fe{sub 20} (permalloy) into the uranium layer, which is then converted into an electric field by the inverse spin Hall effect. Surprisingly, our results suggest a spin mixing conductance of order 2 × 10{sup 19} m{sup −2} and a positive spin Hall angle of 0.004, which are both merely comparable with those of several transition metals. These results thus support the idea that the electronic configuration may be at least as important as the atomic number in governing spin pumping across interfaces and subsequent spin Hall effects. In fact, given that both the magnitude and the sign are unexpected based on trends in d-electron systems, materials with unfilled f-electron orbitals may hold additional exploration avenues for spin physics.

  2. EM's Acting Assistant Secretary Selected to Lead Joint Convention

    Energy.gov [DOE]

    The Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management (Joint Convention) selected David Huizenga, Acting Assistant Secretary for the Office of Environmental Management, as the President for the Fifth Review Meeting of the Parties.

  3. Comparison of Secondary Islands in Collisional Reconnection to Hall Reconnection

    SciTech Connect

    Shepherd, L. S.; Cassak, P. A.

    2010-07-02

    Large-scale resistive Hall-magnetohydrodynamic simulations of the transition from Sweet-Parker (collisional) to Hall (collisionless) magnetic reconnection are presented; the first to separate secondary islands from collisionless effects. Three main results are described. There exists a regime with secondary islands but without collisionless effects, and the reconnection rate is faster than Sweet-Parker, but significantly slower than Hall reconnection. This implies that secondary islands do not cause the fastest reconnection rates. The onset of Hall reconnection ejects secondary islands from the vicinity of the X line, implying that energy is released more rapidly during Hall reconnection. Coronal applications are discussed.

  4. In-plane current induced domain wall nucleation and its stochasticity in perpendicular magnetic anisotropy Hall cross structures

    SciTech Connect

    Sethi, P.; Murapaka, C.; Lim, G. J.; Lew, W. S.

    2015-11-09

    Hall cross structures in magnetic nanowires are commonly used for electrical detection of magnetization reversal in which a domain wall (DW) is conventionally nucleated by a local Oersted field. In this letter, we demonstrate DW nucleation in Co/Ni perpendicular magnetic anisotropy nanowire at the magnetic Hall cross junction. The DWs are nucleated by applying an in-plane pulsed current through the nanowire without the need of a local Oersted field. The change in Hall resistance, detected using anomalous Hall effect, is governed by the magnetic volume switched at the Hall junction, which can be tuned by varying the magnitude of the applied current density and pulse width. The nucleated DWs are driven simultaneously under the spin transfer torque effect when the applied current density is above a threshold. The possibility of multiple DW generation and variation in magnetic volume switched makes nucleation process stochastic in nature. The in-plane current induced stochastic nature of DW generation may find applications in random number generation.

  5. Spin pumping and inverse spin Hall effects—Insights for future spin-orbitronics (invited)

    SciTech Connect

    Zhang, Wei Jungfleisch, Matthias B.; Jiang, Wanjun; Fradin, Frank Y.; Pearson, John E.; Hoffmann, Axel; Sklenar, Joseph; Ketterson, John B.

    2015-05-07

    Quantification of spin-charge interconversion has become increasingly important in the fast-developing field of spin-orbitronics. Pure spin current generated by spin pumping acts as a sensitive probe for many bulk and interface spin-orbit effects, which has been indispensable for the discovery of many promising new spin-orbit materials. We apply spin pumping and inverse spin Hall effect experiments, as a useful metrology, and study spin-orbit effects in a variety of metals and metal interfaces. We quantify the spin Hall effects in Ir and W using the conventional bilayer structures and discuss the self-induced voltage in a single layer of ferromagnetic permalloy. Finally, we extend our discussions to multilayer structures and quantitatively reveal the spin current flow in two consecutive normal metal layers.

  6. Forest County Potawatomi Community Wundar Hall Project

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Wundar Hall Project Department of Energy Tribal Energy Program Review October 27, 2010 Mercedes E. Vega Legal Office Administrator Forest County Potawatomi Community 2 Background on Forest County Potawatomi Community  FCPC has trust land in northern Wisconsin and the City of Milwaukee.  Facilities include tribal government offices, a health and wellness center, a cultural museum, a former college campus, a hotel, two casinos and various other smaller support facilities and enterprises. 3

  7. Meetings & Minutes

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fiscal Year 2011 NSSAB Meetings Meetings, Minutes and Handouts Date Type Time Location Agenda Handouts Minutes Oct 5, 2010 NNSS Tour 8 am NNSS NA NA NA Nov 2, 2010 Soils...

  8. NUG Meeting Nov. 15, 1999

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NUG Meeting Nov. 15, 1999 Dates November 15, 1999 Location Supercomputing 1999 (SC99) Lloyd Convention Center Portland, OR Agenda ERSUG Meeting: Monday November 15, 1999 Doubletree Hotel - Lloyd Center, Portland The next NERSC User Group (ERSUG) meeting will be held in conjunction with the Supercomputing 99 meeting in Portland, OR, on Monday November 15, between 8:30 am and 5:00 pm. The SC99 main exhibit opens Monday evening. The proposed transition from ERSUG to the renamed NERSC Users Group

  9. 2011 Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1 Fuel Cycle Technologies Annual Review Meeting Transactions Report i Table of Contents Fuel Cycle Technologies Program: Introduction ......

  10. 2011 Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2 Fuel Cycle Technologies Annual Review Meeting Transactions Report i Table of Contents Fuel Cycle Technologies Program: I ntroduction ......

  11. Conventional Hydropower Technologies (Fact Sheet)

    SciTech Connect

    Not Available

    2011-07-01

    This fact sheet describes the DOE Water Power Program's conventional hydropower research and development efforts.

  12. Conventional magnetic superconductors

    DOE PAGES [OSTI]

    Wolowiec, C. T.; White, B. D.; Maple, M. B.

    2015-07-01

    We discuss several classes of conventional magnetic superconductors including the ternary rhodium borides and molybdenum chalcogenides (or Chevrel phases), and the quaternary nickel-borocarbides. These materials exhibit some exotic phenomena related to the interplay between superconductivity and long-range magnetic order including: the coexistence of superconductivity and antiferromagnetic order; reentrant and double reentrant superconductivity, magnetic field induced superconductivity, and the formation of a sinusoidally-modulated magnetic state that coexists with superconductivity. We introduce the article with a discussion of the binary and pseudobinary superconducting materials containing magnetic impurities which at best exhibit short-range “glassy” magnetic order. Early experiments on these materials led tomore » the idea of a magnetic exchange interaction between the localized spins of magnetic impurity ions and the spins of the conduction electrons which plays an important role in understanding conventional magnetic superconductors. Furthermore, these advances provide a natural foundation for investigating unconventional superconductivity in heavy-fermion compounds, cuprates, and other classes of materials in which superconductivity coexists with, or is in proximity to, a magnetically-ordered phase.« less

  13. Conventional magnetic superconductors

    SciTech Connect

    Wolowiec, C. T.; White, B. D.; Maple, M. B.

    2015-07-01

    We discuss several classes of conventional magnetic superconductors including the ternary rhodium borides and molybdenum chalcogenides (or Chevrel phases), and the quaternary nickel-borocarbides. These materials exhibit some exotic phenomena related to the interplay between superconductivity and long-range magnetic order including: the coexistence of superconductivity and antiferromagnetic order; reentrant and double reentrant superconductivity, magnetic field induced superconductivity, and the formation of a sinusoidally-modulated magnetic state that coexists with superconductivity. We introduce the article with a discussion of the binary and pseudobinary superconducting materials containing magnetic impurities which at best exhibit short-range “glassy” magnetic order. Early experiments on these materials led to the idea of a magnetic exchange interaction between the localized spins of magnetic impurity ions and the spins of the conduction electrons which plays an important role in understanding conventional magnetic superconductors. Furthermore, these advances provide a natural foundation for investigating unconventional superconductivity in heavy-fermion compounds, cuprates, and other classes of materials in which superconductivity coexists with, or is in proximity to, a magnetically-ordered phase.

  14. Charge carrier coherence and Hall effect in organic semiconductors

    DOE PAGES [OSTI]

    Yi, H. T.; Gartstein, Y. N.; Podzorov, V.

    2016-03-30

    Hall effect measurements are important for elucidating the fundamental charge transport mechanisms and intrinsic mobility in organic semiconductors. However, Hall effect studies frequently reveal an unconventional behavior that cannot be readily explained with the simple band-semiconductor Hall effect model. Here, we develop an analytical model of Hall effect in organic field-effect transistors in a regime of coexisting band and hopping carriers. The model, which is supported by the experiments, is based on a partial Hall voltage compensation effect, occurring because hopping carriers respond to the transverse Hall electric field and drift in the direction opposite to the Lorentz force actingmore » on band carriers. We show that this can lead in particular to an underdeveloped Hall effect observed in organic semiconductors with substantial off-diagonal thermal disorder. Lastly, our model captures the main features of Hall effect in a variety of organic semiconductors and provides an analytical description of Hall mobility, carrier density and carrier coherence factor.« less

  15. Lecture & Dining Halls - Combustion Energy Frontier Research Center

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Lecture & Dining Halls Lecture & Dining Halls Lecture Halls: Friend Center SeeSchedule of Events for schedule and location of lectures. How far are the lecture halls from the dormitories? Friend Center is a quick 10 minute walk from the Butler dormitories. See campus map for walking directions. There is also a free campus shuttle that will take you from outside the Icahn Lab on Washington Road to the Friend Center. See http://www.princeton.edu/transportation/ttroutes/ for shuttle times.

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

    Energy.gov [DOE]

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

  17. Exhibit Hall Floor Plan & Hours | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Exhibit Hall Floor Plan & Hours Exhibit Hall Floor Plan & Hours Exhibit Hall Floor Plan & Hours Exhibitor Move-in Hours Tuesday, May 16 9:00 am - 5:00 pm Wednesday, May 17 7:00 am - Noon Exhibit Hall Hours Wednesday, May 17 Opens: Noon - 3:45 pm (Lunch will be served) Closes: 3:45 pm - 5:00 pm) Reopens: 5:00 pm - 7:00 pm (Welcome Reception) Thursday, May 18 Opens: 7:00 am - Noon (Breakfast will be served) Closes: Noon (Lunch will be served) Exhibitor Move-out Hours Thursday, May 18

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Corp. Solar Project" Retrieved from "http:en.openei.orgwindex.php?titleHall%27sWarehouseCorpSolarProject&oldid397541" Feedback Contact needs updating Image...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Hall, Pennsylvania: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.8475635, -77.6861093 Show Map Loading map... "minzoom":false,"mappingser...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Hall County, Georgia: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.30778, -83.804868 Show Map Loading map... "minzoom":false,"mappingserv...

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

    SciTech Connect

    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.

  2. 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 ...

  3. Systems and Methods for Cylindrical Hall Thrusters with Independently...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Systems and Methods for Cylindrical Hall Thrusters with Independently Controllable Ionization and Acceleration Stages Yevgeny Raitses, Nathaniel J. Fisch and Kevin D. Diamant (The...

  4. Anomalous spin precession and spin Hall effect in semiconductor...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Journal Article: Anomalous spin precession and spin Hall effect in semiconductor quantum wells Citation Details In-Document Search Title: Anomalous ...

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

    Office of Scientific and Technical Information (OSTI)

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

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

    SciTech Connect

    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.

  7. EMAB Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EMAB Meetings EMAB Meetings No downloads

  8. Synchronization of spin-transfer torque oscillators by spin pumping, inverse spin Hall, and spin Hall effects

    SciTech Connect

    Elyasi, Mehrdad; Bhatia, Charanjit S.; Yang, Hyunsoo

    2015-02-14

    We have proposed a method to synchronize multiple spin-transfer torque oscillators based on spin pumping, inverse spin Hall, and spin Hall effects. The proposed oscillator system consists of a series of nano-magnets in junction with a normal metal with high spin-orbit coupling, and an accumulative feedback loop. We conduct simulations to demonstrate the effect of modulated charge currents in the normal metal due to spin pumping from each nano-magnet. We show that the interplay between the spin Hall effect and inverse spin Hall effect results in synchronization of the nano-magnets.

  9. Meeting Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    HEP Meeting Materials Meeting Materials Here you will find various items to be used before and during the requirements review. The following documents are included: Case study worksheet to be filled in by meeting participants Sample of a completed case study from a Nuclear Physics requirements workshop held in 2011 A graph of NERSC and HEP usage as a function of time A powerpoint template you can use at the requirements review Downloads CaseStudyTemplate.docx | unknown Case Study Worksheet -

  10. Segmented electrode hall thruster with reduced plume

    DOEpatents

    Fisch, Nathaniel J.; Raitses, Yevgeny

    2004-08-17

    An apparatus and method for thrusting plasma, utilizing a Hall thruster with segmented electrodes along the channel, which make the acceleration region as localized as possible. Also disclosed are methods of arranging the electrodes so as to minimize erosion and arcing. Also disclosed are methods of arranging the electrodes so as to produce a substantial reduction in plume divergence. The use of electrodes made of emissive material will reduce the radial potential drop within the channel, further decreasing the plume divergence. Also disclosed is a method of arranging and powering these electrodes so as to provide variable mode operation.

  11. Meeting Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    be used before and during the requirements review. The following documents are included: Case study worksheet to be filled in by meeting participants Sample of a completed case...

  12. Meeting Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    before and during the requirements review. The following documents are included: Case study worksheet to be filled in by meeting participants Sample of a completed case study...

  13. Jefferson Lab Strategic Planning Experimental Nuclear Physics Division Town Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Jefferson Lab Strategic Planning Experimental Nuclear Physics Division Town Meeting December 08, 2011 - CEBAF Center Auditorium Agenda 08:30 - 08:35 Charge Bob McKeown 08:35 - 08:45 (5 + 5) Introduction Rolf Ent (Mission Statement, Scope of Current activities, Synergy) 08:45 - 09:00 (10 + 5) 12-GeV Upgrade: "<5 years" scientific program Glenn Young (Machine + Hall Equipment, Approved Experiments) 09:00 - 09:40 12-GeV Upgrade: "5-10 year" scientific program (5 + 5) Hall A

  14. DOE Notice of Inquiry on the Convention on Supplementary Compensation for

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Nuclear Damage (CSC) Contingent Cost Allocation - March 2, 2011 Meeting with CIGNL | Department of Energy Inquiry on the Convention on Supplementary Compensation for Nuclear Damage (CSC) Contingent Cost Allocation - March 2, 2011 Meeting with CIGNL DOE Notice of Inquiry on the Convention on Supplementary Compensation for Nuclear Damage (CSC) Contingent Cost Allocation - March 2, 2011 Meeting with CIGNL On March 2, 2011, representatives of CIGNL met at the Forrestal Building with DOE

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

    Office of Scientific and Technical Information (OSTI)

    Non-abelian fractional quantum hall effect for fault-resistant topological quantum computation. Citation Details In-Document Search Title: Non-abelian fractional quantum hall...

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

    Office of Environmental Management (EM)

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

  17. Fractional Quantum Hall Effect at Landau Level Filling v=4/11...

    Office of Scientific and Technical Information (OSTI)

    Fractional Quantum Hall Effect at Landau Level Filling v411. Citation Details In-Document Search Title: Fractional Quantum Hall Effect at Landau Level Filling v411. Abstract...

  18. Pair spectrometer hodoscope for Hall D at Jefferson Lab

    DOE PAGES [OSTI]

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

    2015-09-01

    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.

  19. Pair spectrometer hodoscope for Hall D at Jefferson Lab

    SciTech Connect

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

    SciTech Connect

    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.

  1. Cylindrical Hall Thrusters with Permanent Magnets

    SciTech Connect

    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. __________________________________________________

  2. Undulator Hall Air Temperature Fault Scenarios

    SciTech Connect

    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.

  3. Anomalous Hall effect in YIG|Pt bilayers

    SciTech Connect

    Meyer, Sibylle Schlitz, Richard; Geprägs, Stephan; Opel, Matthias; Huebl, Hans; Goennenwein, Sebastian T. B.; Gross, Rudolf

    2015-03-30

    We measure the ordinary and the anomalous Hall effect in a set of yttrium iron garnet|platinum (YIG|Pt) bilayers via magnetization orientation dependent magnetoresistance experiments. Our data show that the presence of the ferrimagnetic insulator YIG leads to an anomalous Hall effect like voltage in Pt, which is sensitive to both Pt thickness and temperature. Interpretation of the experimental findings in terms of the spin Hall anomalous Hall effect indicates that the imaginary part of the spin mixing conductance G{sub i} plays a crucial role in YIG|Pt bilayers. In particular, our data suggest a sign change in G{sub i} between 10 K and 300 K. Additionally, we report a higher order Hall effect contribution, which appears in thin Pt films on YIG at low temperatures.

  4. Transportation Research Board 94th Annual Meeting

    Energy.gov [DOE]

    The Transportation Research Board 94th Annual Meeting will be held January 11–15, 2015, in Washington, D.C. at the Walter E. Washington Convention Center. The event covers the entire transportation...

  5. Meetings - SRSCRO

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Conducting The Region's Business Conducting The Region's Business SRSCRO Meetings Schedule PLEASE CALL THE SRSCRO OFFICE AT 803-508-7401 FOR MEETING DETAILS 2016 Board Meeting Dates January 28, 2016, 10:00 A.M. March 31, 2016, 10:00 A.M. May 26, 2016, 10:00 A.M. July 28, 2016, 10:00 A.M. September 22, 2016, 10:00 A.M December 8, 2016, 10:00 A.M. ***Changed*** 2016 Executive Committee Meeting Dates January 7, 2016, 9:00 A.M. February 4, 2016, 9:00 A.M. March 3, 2016, 9:00 A.M. April 14, 2016,

  6. Spin Hall magnetoresistance at high temperatures

    SciTech Connect

    Uchida, Ken-ichi; Qiu, Zhiyong; Kikkawa, Takashi; Iguchi, Ryo; Saitoh, Eiji

    2015-02-02

    The temperature dependence of spin Hall magnetoresistance (SMR) in Pt/Y{sub 3}Fe{sub 5}O{sub 12} (YIG) bilayer films has been investigated in a high temperature range from room temperature to near the Curie temperature of YIG. The experimental results show that the magnitude of the magnetoresistance ratio induced by the SMR monotonically decreases with increasing the temperature and almost disappears near the Curie temperature. We found that, near the Curie temperature, the temperature dependence of the SMR in the Pt/YIG film is steeper than that of a magnetization curve of the YIG; the critical exponent of the magnetoresistance ratio is estimated to be 0.9. This critical behavior of the SMR is attributed mainly to the temperature dependence of the spin-mixing conductance at the Pt/YIG interface.

  7. Stacking order dependence of inverse spin Hall effect and anomalous Hall effect in spin pumping experiments

    SciTech Connect

    Kim, Sang-Il; Seo, Min-Su; Park, Seung-Young; Kim, Dong-Jun; Park, Byong-Guk

    2015-05-07

    The dependence of the measured DC voltage on the non-magnetic material (NM) in NM/CoFeB and CoFeB/NM bilayers is studied under ferromagnetic resonance conditions in a TE{sub 011} resonant cavity. The directional change of the inverse spin Hall effect (ISHE) voltage V{sub ISHE} for the stacking order of the bilayer can separate the pure V{sub ISHE} and the anomalous Hall effect (AHE) voltage V{sub AHE} utilizing the method of addition and subtraction. The Ta and Ti NMs show a broad deviation of the spin Hall angle θ{sub ISH}, which originates from the AHE in accordance with the high resistivity of NMs. However, the Pt and Pd NMs show that the kinds of NMs with low resistivity are consistent with the previously reported θ{sub ISH} values. Therefore, the characteristics that NM should simultaneously satisfy to obtain a reasonable V{sub ISHE} value in bilayer systems are large θ{sub ISH} and low resistivity.

  8. Meeting Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Energy Meeting America's Pressing Needs -- One Reaction at a Time Meeting America's Pressing Needs -- One Reaction at a Time March 28, 2016 - 4:37pm Addthis Cleaner auto emissions is just one way catalysis research is helping to solve big problems. | Image courtesy of PNNL. Cleaner auto emissions is just one way catalysis research is helping to solve big problems. | Image courtesy of PNNL. Dr. Steven Ashby Director, Pacific Northwest National Laboratory In the Middle Ages, alchemists

  9. UDAC Meeting- February 2011

    Office of Energy Efficiency and Renewable Energy (EERE)

    Meeting minutes, agenda, presentations and Federal Register notice from February 23, 2011 UDAC Meeting (14th Meeting)

  10. NCAI Annual Convention and Marketplace

    Energy.gov [DOE]

    The National Congress of American Indians (NCAI) is hosting their annual convention featuring networking events, breakout sessions on resiliency and workforce development, and guest speakers. Pre...

  11. Conventional Hydropower Technologies (Fact Sheet)

    SciTech Connect

    Not Available

    2010-07-01

    The US Department of Energy conducts research on conventional hydropower technologies to increase generation and improve existing means of generating hydroelectricity.

  12. Tanana Chiefs Conference Annual Convention

    Energy.gov [DOE]

    The Tanana Chiefs Conference is hosting its annual convention's theme is "Our Communities, Our Future" and will feature keynote speaker Chief Floyd Green of Rampart.

  13. Tanana Chiefs Conference Annual Convention

    Energy.gov [DOE]

    The Tanana Chiefs Conference is holding its annual convention to discuss issues in the region, hold elections, and adopt resolutions presented by Tribes.

  14. Parametric Investigations of Miniaturized Cylindrical and Annular Hall Thrusters

    SciTech Connect

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

    2001-10-16

    A cylindrical geometry Hall thruster may overcome certain physical and technological limitations in scaling down of Hall thrusters to miniature sizes. The absence of the inner wall and use of the cusp magnetic field can potentially reduce heating of the thruster parts and erosion of the channel. A 2.6 cm miniaturized Hall thruster of a flexible design was built and successfully operated in the power range of 50-300 W. Comparison of preliminary results obtained for cylindrical and annular thruster configurations is presented.

  15. Charge carrier coherence and Hall effect in organic semiconductors

    Office of Scientific and Technical Information (OSTI)

    OPEN: Charge carrier coherence and Hall effect in organic semiconductors H. T. Yi1, Y. N. Gartstein2 & V. Podzorov1-3 Received: 21 January 2016 Accepted: 29 February 2016 ...

  16. Property:Building/FloorAreaTheatresConcertHallsCinemas | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Property Edit with form History Property:BuildingFloorAreaTheatresConcertHallsCinemas Jump to: navigation, search This is a property of type Number. Floor area for Theatres,...

  17. Public invited to LANL-sponsored Energy Town Hall

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    LOS ALAMOS, New Mexico, April 19, 2010-The public is invited to learn about projects in energy conservation, generation, research, and management at an Energy Town Hall April 21. ...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Hall County is a county in Nebraska. Its FIPS County Code is 079. It is classified as ASHRAE...

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

    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...

  20. Meeting Agenda

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Meet the Women Leading the Clean Energy Revolution Meet the Women Leading the Clean Energy Revolution May 4, 2016 - 10:00am Addthis Debra Rowe, Oakland Community College, California 1 of 10 Debra Rowe, Oakland Community College, California Debra Rowe doesn't want anyone to have to choose between heating and eating. After seeing that solar energy systems work, save people money and produce quality jobs, she began spreading the message of clean energy. She uses a mobile classroom, built into a

  1. Josephson inplane and tunneling currents in bilayer quantum Hall system

    SciTech Connect

    Ezawa, Z. F.; Tsitsishvili, G.; Sawada, A.

    2013-12-04

    A Bose-Einstein condensation is formed by composite bosons in the quantum Hall state. A composite boson carries the fundamental charge (–e). We investigate Josephson tunneling of such charges in the bilayer quantum Hall system at the total filling ν = 1. We show the existence of the critical current for the tunneling current to be coherent and dissipationless in tunneling experiments with various geometries.

  2. Building America Top Innovations Hall of Fame Profile - Building Energy

    Energy Saver

    Optimization Analysis Method (BEopt) | Department of Energy America Top Innovations Hall of Fame Profile - Building Energy Optimization Analysis Method (BEopt) Building America Top Innovations Hall of Fame Profile - Building Energy Optimization Analysis Method (BEopt) 3_3a_ba_innov_beopt_011713.pdf (877.48 KB) More Documents & Publications Building Energy Optimization Analysis Method (BEopt) - Building America Top Innovation BEopt Version 2.0: New Features Building America Webinar:

  3. Hall effect measurements on InAs nanowires

    SciTech Connect

    Bloemers, Ch.; Grap, T.; Lepsa, M. I.; Moers, J.; Gruetzmacher, D.; Lueth, H.; Trellenkamp, St.; Schaepers, Th.

    2012-10-08

    We have processed Hall contacts on InAs nanowires grown by molecular beam epitaxy using an electron beam lithography process with an extremely high alignment accuracy. The carrier concentrations determined from the Hall effect measurements on these nanowires are lower by a factor of about 4 in comparison with those measured by the common field-effect technique. The results are used to evaluate quantitatively the charging effect of the interface and surface states.

  4. Exact solutions of the incompressible dissipative Hall magnetohydrodynamics

    SciTech Connect

    Xia, Zhenwei; Yang, Weihong

    2015-03-15

    By using analytical method, the exact solutions of the incompressible dissipative Hall magnetohydrodynamics (MHD) equations are derived. It is found that a phase difference may occur between the velocity and magnetic field fluctuations when the kinetic and magnetic Reynolds numbers are both very large. Since velocity and magnetic field fluctuations are both circular polarized, the phase difference makes them no longer parallel or anti-parallel like that in the incompressible ideal Hall MHD.

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    America's Top Innovations Propel the Home Building Industry toward Higher Performance | Department of Energy 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 Profile - Building America's Top Innovations Propel the Home Building Industry toward Higher Performance This Building America Innovations profile describes the concept for the U.S. Department of Energy

  6. UDAC Meeting- September 2009

    Office of Energy Efficiency and Renewable Energy (EERE)

    Meeting minutes, agenda, Federal Register notice and presentations from the September 16-17, 2009 meeting

  7. 2011 Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2 Fuel Cycle Technologies Annual Review Meeting Transactions Report i Table of Contents Fuel Cycle Technologies Program: I ntroduction .................................................. 1 Fuel Cycle Options Campaign ................................................................................ 5 1.1 Fuel Cycle Options Campaign Overview ...................................................................................... 6 1.2 Development of the Comprehensive Options List for 2013 Evaluation

  8. 2011 Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1 Fuel Cycle Technologies Annual Review Meeting Transactions Report i Table of Contents Fuel Cycle Technologies Program: Introduction ...................................................... 1 Used Fuel Disposition Campaign ................................................................................ 3 1.1 Used Fuel Disposition Campaign Overview ......................................................................... 4 1.2 Abstract: Review of the Used Fuel Disposition Campaign's Storage and

  9. ITCN 49th Annual Convention

    Energy.gov [DOE]

    The Inter-Tribal Council of Nevada, Inc. will be hosting its 49th Annual Convention, themed "Making a Difference for Nevada Tribes," December 8-11, 2014 at John Ascuaga’s Nugget in Sparks, Nevada.

  10. Sandia Energy - Conventional Water Power: Technology Development

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Development Home Stationary Power Energy Conversion Efficiency Water Power Conventional Water Power: Technology Development Conventional Water Power: Technology...

  11. Conventional Energy Forum & Associated Vertical Business Development...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Conventional Energy Forum & Associated Vertical Business Development: Best Practices in Indian Country Conventional Energy Forum & Associated Vertical Business Development: Best ...

  12. Staff meeting

    ScienceCinema

    None

    2016-07-12

    I would like to invite all members of the CERN Personnel to a meeting on Wednesday 16 January 2008 at 3:00 p.m. Main Auditorium (bldg 500) to convey my best wishes for the new year, to review CERN’s activities during 2007 and to present the perspectives for 2008, the year of the LHC start-up. Closed-circuit transmission of the meeting will be available in the Council Chamber and in the AB Auditorium (Meyrin), the AB Auditorium (Prévessin), the IT Auditorium (Bldg. 31) and the AT Auditorium (Bldg. 30). Simultaneous translation into English will be available in the main Auditorium. Best wishes for the festive season! Robert AYMAR

  13. NUG Meeting November 9, 2004 (Pittsburgh, PA)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NUG Meeting November 9, 2004 (Pittsburgh, PA) Dates November 9, 2004 Location SuperComputing 2004 (SC2004) David L. Lawrence Convention Center Room 319/320 Pittsburgh, PA Agenda NERSC User Group (NUG) Meeting, Tuesday November 9th 2004 5:30 - 07:00 PM at SC2004 in Pittsburgh, Room 319/320 The NERSC User Group (NUG) is composed of all NERSC users to provide guidance in provision of center services and future development. NUG holds annual meetings, including BoFs at SC meetings, to discuss topics

  14. 2011 User Meeting Workshops

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    54-130 (Pers. Hall) Industrial Protein Crystallography Corie Ralston (LBNL) and Gyorgy Snell (Takeda, Inc.) 6-1105 (Wed.) New Computational Approaches for X-Ray Science Alex...

  15. 2016 All Hands Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... You may park in any yellow permit space in the lot outside ... disembark at the Big Bend station and walk south along Big ... Hall (J-9) 110. Stix International House (F-6) 111. Tau ...

  16. ALS User Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    User Meeting ALS User Meeting web banner ALS User Meeting: October 5-7, 2015 Home Agenda Awards Exhibitors Lodging Posters Registration Transportation Workshops Contact Us User...

  17. ALS User Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ALS User Meeting Print web banner ALS User Meeting: October 5-7, 2015 Home Agenda Awards Exhibitors Lodging Posters Registration Transportation Workshops Contact Us User Meeting...

  18. Position-Momentum Duality and Fractional Quantum Hall Effect in Chern Insulators

    DOE PAGES [OSTI]

    Claassen, Martin; Lee, Ching-Hua; Thomale, Ronny; Qi, Xiao-Liang; Devereaux, Thomas P

    2015-06-11

    We develop a first quantization description of fractional Chern insulators that is the dual of the conventional fractional quantum Hall (FQH) problem, with the roles of position and momentum interchanged. In this picture, FQH states are described by anisotropic FQH liquids forming in momentum-space Landau levels in a fluctuating magnetic field. The fundamental quantum geometry of the problem emerges from the interplay of single-body and interaction metrics, both of which act as momentum-space duals of the geometrical picture of the anisotropic FQH effect. We then present a novel broad class of ideal Chern insulator lattice models that act as dualsmore » of the isotropic FQH effect. The interacting problem is well-captured by Haldane pseudopotentials and affords a detailed microscopic understanding of the interplay of interactions and non-trivial quantum geometry.« less

  19. Position-Momentum Duality and Fractional Quantum Hall Effect in Chern Insulators

    SciTech Connect

    Claassen, Martin; Lee, Ching-Hua; Thomale, Ronny; Qi, Xiao-Liang; Devereaux, Thomas P

    2015-06-11

    We develop a first quantization description of fractional Chern insulators that is the dual of the conventional fractional quantum Hall (FQH) problem, with the roles of position and momentum interchanged. In this picture, FQH states are described by anisotropic FQH liquids forming in momentum-space Landau levels in a fluctuating magnetic field. The fundamental quantum geometry of the problem emerges from the interplay of single-body and interaction metrics, both of which act as momentum-space duals of the geometrical picture of the anisotropic FQH effect. We then present a novel broad class of ideal Chern insulator lattice models that act as duals of the isotropic FQH effect. The interacting problem is well-captured by Haldane pseudopotentials and affords a detailed microscopic understanding of the interplay of interactions and non-trivial quantum geometry.

  20. Stability of Hall equilibria in neutron star crusts

    SciTech Connect

    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.

  1. Optical detection of spin Hall effect in metals

    SciTech Connect

    Erve, O. M. J. van ‘t Hanbicki, A. T.; McCreary, K. M.; Li, C. H.; Jonker, B. T.

    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 β-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.

  2. Reconnection dynamics with secondary tearing instability in compressible Hall plasmas

    SciTech Connect

    Ma, Z. W. Wang, L. C.; Li, L. J.

    2015-06-15

    The dynamics of a secondary tearing instability is systematically investigated based on compressible Hall magnetohydrodynamic. It is found that in the early nonlinear phase of magnetic reconnection before onset of the secondary tearing instability, the geometry of the magnetic field in the reconnection region tends to form a Y-type structure in a weak Hall regime, instead of an X-type structure in a strong Hall regime. A new scaling law is found that the maximum reconnection rate in the early nonlinear stage is proportional to the square of the ion inertial length (γ∝d{sub i}{sup 2}) in the weak Hall regime. In the late nonlinear phase, the thin elongated current sheet associated with the Y-type geometry of the magnetic field breaks up to form a magnetic island due to a secondary tearing instability. After the onset of the secondary tearing mode, the reconnection rate is substantially boosted by the formation of the X-type geometries of magnetic field in the reconnection regions. With a strong Hall effect, the maximum reconnection rate linearly increases with the increase of the ion inertial length (γ∝d{sub i})

  3. 2016 PARC All Hands Meeting | Photosynthetic Antenna Research Center

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Day 1 June 21, 2016 Brauer Hall 012

  4. Conventional Vehicles | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Water Heating » Conventional Storage Water Heater Basics Conventional Storage Water Heater Basics July 30, 2013 - 3:39pm Addthis Illustration showing the components of a storage water heater. On top of the tank are two thin pipes; one pipe is the hot water outlet, and the other is the cold water inlet. A large pipe in the middle is called a vent pipe. A pressure/temperature relief valve is also on top of the tank and is connected to an open pipe that runs down the side of the tank. Another

  5. Meeting Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    AGENDA DOE Hydrogen Delivery Analysis and High Pressure Tanks R&D Project Review Meeting February 8-9, 2005 Argonne National Laboratory February 8, 2005 7:30 Arrival and breakfast 8:30 Overview Presentations DOE Hydrogen Program Mark Paster, DOE/OHFCIT Overview of FreedomCAR & Fuels Partnership/DOE Delivery Program George Parks, ConocoPhillips 10:00 BREAK 10:15 High-Pressure Tube Trailers and Tanks Salvador Aceves, Lawrence Livermore National Laboratory 11:15 High-Pressure Hydrogen Tanks

  6. Meeting of the Electricity Advisory Committee Meeting, March...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Committee Meeting, March 26-27, 2015 - Meeting Minutes and Transcripts Meeting of the Electricity Advisory Committee Meeting, March 26-27, 2015 - Meeting Minutes and Transcripts ...

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

    SciTech Connect

    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.

  8. Reconnection events in two-dimensional Hall magnetohydrodynamic turbulence

    SciTech Connect

    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.

  9. Admittance of multiterminal quantum Hall conductors at kilohertz frequencies

    SciTech Connect

    Hernndez, 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 Bttiker 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.

  10. On the question of hysteresis in Hall magnetohydrodynamic reconnection

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  12. ENVIRONMENTAL MANAGEMENT SITE-SPECIFIC ADVISORY BOARD CHAIRS' MEETING

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    CHAIRS' MEETING for the U.S. DEPARTMENT OF ENERGY PUBLIC MEETING MINUTES Las Vegas Marriott 325 Convention Center Drive Las Vegas, NV 89109 August 31-September 1, 2016 2 Environmental Management Site-Specific Advisory Board Chairs' Meeting - August 31-September 1, 2016 Meeting Minutes LIST OF ACRONYMS ALARA - As Low As Reasonably Achievable CAB - Citizens Advisory Board CBFO - (DOE) Carlsbad Field Office (WIPP) CD - Critical Decision CR - Continuing Resolution D&D - Decontamination &

  13. EMAB Meeting- February 2011

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board minutes, transcripts, and presentations from meeting held in Washington, DC for meeting on February 24, 2011.

  14. EMAB Meeting- September 2009

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board minutes, transcripts, and presentations from meeting held in Washington, DC for meeting on September 30, 2009.

  15. EMAB Meeting- September 2010

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board minutes, transcripts, and presentations from meeting held in Washington, DC for meeting on Septermber 15, 2010.

  16. EMAB Meeting- November 2010

    Energy.gov [DOE]

    Board minutes, transcripts, and presentations from meeting held in Washington, DC for meeting on November 17, 2010.

  17. EMAB Meeting- March 2010

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board minutes, transcripts, and presentations from meeting held in Washington, DC for meeting on March 31, 2010.

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

    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 ...

  19. Quantum anomalous Hall effect in single-layer and bilayer graphene...

    Office of Scientific and Technical Information (OSTI)

    Quantum anomalous Hall effect in single-layer and bilayer graphene Citation Details In-Document Search Title: Quantum anomalous Hall effect in single-layer and bilayer graphene ...

  20. Quantum anomalous Hall effect in topological insulator memory

    SciTech Connect

    Jalil, Mansoor B. A.; Tan, S. G.; Siu, Z. B.

    2015-05-07

    We theoretically investigate the quantum anomalous Hall effect (QAHE) in a magnetically coupled three-dimensional-topological insulator (3D-TI) system. We apply the generalized spin-orbit coupling Hamiltonian to obtain the Hall conductivity σ{sup xy} of the system. The underlying topology of the QAHE phenomenon is then analyzed to show the quantization of σ{sup xy} and its relation to the Berry phase of the system. Finally, we analyze the feasibility of utilizing σ{sup xy} as a memory read-out in a 3D-TI based memory at finite temperatures, with comparison to known magnetically doped 3D-TIs.

  1. Nanoconstriction-based spin-Hall nano-oscillator

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  3. Bernhard Mecking steps down as Hall B leader at Jefferson Lab | Jefferson

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Lab Bernhard Mecking steps down as Hall B leader at Jefferson Lab Bernhard Mecking Jefferson Lab staff scientist Bernhard Mecking with the CEBAF Large Acceptance Spectrometer (CLAS) in Hall B. Bernhard Mecking steps down as Hall B leader at Jefferson Lab April 2, 2003 On 1 February 2003, Bernhard Mecking stepped down as leader of Hall B to return to full-time research at the Department of Energy's Thomas Jefferson National Accelerator Facility (Jefferson Lab) in Newport News, Virginia.

  4. AGU SubTER Town Hall Presentation 2015 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    AGU SubTER Town Hall Presentation 2015 AGU SubTER Town Hall Presentation 2015 AGU SubTER Townhall 2015.pdf (4.49 MB) More Documents & Publications SubTER Fact Sheet SubTER Presentation at Town Hall - American Geophysical Union Poster on Subsurface Technology & Engineering Research, Development, and Demonstration Crosscut (SubTER)

  5. SDG&E Remarks QER Meeting in Los Angeles Los Angeles City Hall

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... so imagine the possibilities if we can reform how we power our cars and take ownership of zero-emission electric vehicles to a whole new level. Grid Innovations: The final ...

  6. Town Hall Meeting July 23th, 2012 | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) Topic will be user feedback on OpenEI. Please join...

  7. Town Hall Meeting August 6th, 2012 | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) Topic will be geothermal related with Geothermal...

  8. Town Hall Meeting July 9th, 2012 | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) Topic focus for July 9: Discussion of utility rates...

  9. 06.27.14 SRS Retirees Town Hall Meeting Q/A Period Summary Page...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Benchmarked against Corporate America. They were hedging up to 20-30% healthcare costs being born by consumer. Then, the economy tanked. We suspended that activity. We aren't going ...

  10. OpenEI Town Hall Meeting #4 | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    You must login in order to post into this group. Latest blog post comments Mike o spectacular dataset Posted: 9 Aug 2015 - 14:46 by: Mike o Calum Residential idf Files Posted:...

  11. Sandia Energy - Conventional Water Power: Market Acceleration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Market Acceleration Home Stationary Power Energy Conversion Efficiency Water Power Conventional Water Power: Market Acceleration Conventional Water Power: Market AccelerationTara...

  12. Further improvement of conventional diesel NOx aftertreatment...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Further improvement of conventional diesel NOx aftertreatment concepts as pathway for SULEV Further improvement of conventional diesel NOx aftertreatment concepts as pathway for ...

  13. NERSC Users Group Meeting November 12, 2001 Presentations

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Colorado. The meeting coincides with SC2001, the annual conference of high-performance computing and networking, held Nov. 13-16 at the Denver Convention Center. PVP User...

  14. The framework convention on climate change a convention for sustainable energy development

    SciTech Connect

    Hassing, P.; Mendis, M.S.; Menezes, L.M.; Gowen, M.M.

    1996-12-31

    In 1992, over 165 countries signed the United Nation`s Framework Convention on Climate Change (FCCC). These countries have implicitly agreed to alter their `anthropogenic activities` that increase the emissions of greenhouse gases (GHGs) into the atmosphere and deplete the natural sinks for these same greenhouse gases. The energy sector is the major source of the primary anthropogenic GHGs, notably carbon dioxide and methane. The Organization for Economic Co-operation and Development (OECD) countries presently account for the major share of GHG emissions from the energy sector. However, the developing countries are also rapidly increasing their contribution to global GHG emissions as a result of their growing consumption of fossil-based energy. Implementation of this global climate change convention, if seriously undertaken by the signatory countries, will necessitate changes in the energy mix and production processes in both the OECD and developing countries. International actions also will be needed to put the world on a sustainable energy path. By adoption of the FCCC, representatives of the world`s populations have indicated their desire to move toward such a path. The Conference of Parties to the Convention has just concluded its second meeting, at which the Parties endorsed a U.S. proposal that legally binding and enforceable emissions targets be adopted. It is clearly evident that the FCCC, as presently operating, cannot achieve the objective of stabilizing GHG concentrations in the atmosphere unless it adopts a major protocol to significantly reduce anthropogenic GHG emissions. As demonstrated here, a good starting point in determining the steps the Parties to the FCCC should take in designing a protocol is to remember that the primary source of anthropogenic GHG emissions is the consumption of fossil fuels and the future growth of GHG emissions will derive primarily from the ever-increasing demand for and consumption of these fuels.

  15. Electricity Advisory Committee Meeting, March 12-13, 2014 - Meeting...

    Energy Saver

    Electricity Advisory Committee Meeting, March 12-13, 2014 - Meeting Minutes and Transcripts Meeting minutes and transcripts for the March 12-13, 2014 meeting of the Electricity ...

  16. Electricity Advisory Committee Meeting, June 16-17, 2014 - Meeting...

    Energy.gov [DOE] (indexed site)

    16-17, 2014 meeting of the Electricity Advisory Committee. EAC Meeting Summary June 16, ... More Documents & Publications Meeting of the Electricity Advisory Committee Meeting, March ...

  17. Electricity Advisory Committee Meeting, December 11, 2008: Meeting...

    Office of Environmental Management (EM)

    December 11, 2008: Meeting transcript Electricity Advisory Committee Meeting, December 11, 2008: Meeting transcript Transcript of the Electricity Advisory Committee Meeting held on ...

  18. Electricity Advisory Committee Meeting, March 5-6, 2012 - Meeting...

    Office of Environmental Management (EM)

    Electricity Advisory Committee Meeting, March 5-6, 2012 - Meeting Minutes and Transcripts Meeting minutes and transcripts for the March 5-6, 2012 meeting of the Electricity ...

  19. Electricity Advisory Committee Meeting, January 24, 2014 - Meeting...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electricity Advisory Committee Meeting, January 24, 2014 - Meeting Summary and Transcript Meeting summary and transcript for the January 24, 2014 meeting of the Electricity ...

  20. Electricity Advisory Committee Meeting, June 5-6, 2013 - Meeting...

    Office of Environmental Management (EM)

    Electricity Advisory Committee Meeting, June 5-6, 2013 - Meeting Summaries and Transcripts Meeting summaries and transcripts for the June 5-6, 2013 meeting of the Electricity ...

  1. Meeting Materials: Consent-Based Siting Public Meeting in Sacramento...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in Sacramento (April 26, 2016) Meeting Materials: Consent-Based Siting Public Meeting in Sacramento (April 26, 2016) Meeting Materials: Consent-Based Siting Public Meeting in ...

  2. Building America Technical Update Meeting: What We Know, and What We Don't

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Know | Department of Energy Technical Update Meeting: What We Know, and What We Don't Know Building America Technical Update Meeting: What We Know, and What We Don't Know This plenary presentation was given at the Summer 2012 DOE Building America meeting on July 25, 2012. plenary_rashkin.pdf (10.46 MB) More Documents & Publications Update on U.S. Department of Energy Residential Program Priorities Why Are We Here? Building America Top Innovations Hall of Fame Profile - Building America's

  3. Meetings and Workshops

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    meetings workshops Meetings and Workshops First Nuclear Photonics Meeting Held Attendees at the Nuclear Photonics Meeting Pose for a Group Photo LLNL and NIF & Photon Science hosted the first international topical meeting on nuclear photonics from Oct. 16 to 21 in Monterey. The meeting brought together more than 130 experts in gamma-ray source and intense laser development and experts from a variety of disciplines for which these sources may enable new scientific, industrial and medical

  4. Conventional power sources for colliders

    SciTech Connect

    Allen, M.A.

    1987-07-01

    At SLAC we are developing high peak-power klystrons to explore the limits of use of conventional power sources in future linear colliders. In an experimental tube we have achieved 150 MW at 1 ..mu..sec pulse width at 2856 MHz. In production tubes for SLAC Linear Collider (SLC) we routinely achieve 67 MW at 3.5 ..mu..sec pulse width and 180 pps. Over 200 of the klystrons are in routine operation in SLC. An experimental klystron at 8.568 GHz is presently under construction with a design objective of 30 MW at 1 ..mu..sec. A program is starting on the relativistic klystron whose performance will be analyzed in the exploration of the limits of klystrons at very short pulse widths.

  5. Public Outreach committee meeting

    Energy.gov [DOE]

    The ORSSAB Public Outreach Committee meeting is open to the public. The conference call information will be provided as the meeting approaches.

  6. ORSSAB monthly meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    This month's ORSSAB board meeting will focus on the ETTP Zone 1 soils proposed plan. The meeting is open to the public.

  7. 2013 ALS User Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3 ALS User Meeting banner Home Agenda Awards Exhibitors Lodging Posters Registration T-Shirt Contest Transportation Workshops Contact Us User Meeting Archives Users' Executive...

  8. 2013 ALS User Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2013 ALS User Meeting Print banner Home Agenda Awards Exhibitors Lodging Posters Registration T-Shirt Contest Transportation Workshops Contact Us User Meeting Archives Users'...

  9. Contactless measurement of alternating current conductance in quantum Hall structures

    SciTech Connect

    Drichko, I. L.; Diakonov, A. M.; Malysh, V. A.; Smirnov, I. Yu.; Ilyinskaya, N. D.; Usikova, A. A.; Galperin, Y. M.; Kummer, M.; Känel, H. von

    2014-10-21

    We report a procedure to determine the frequency-dependent conductance of quantum Hall structures in a broad frequency domain. The procedure is based on the combination of two known probeless methods—acoustic spectroscopy and microwave spectroscopy. By using the acoustic spectroscopy, we study the low-frequency attenuation and phase shift of a surface acoustic wave in a piezoelectric crystal in the vicinity of the electron (hole) layer. The electronic contribution is resolved using its dependence on a transverse magnetic field. At high frequencies, we study the attenuation of an electromagnetic wave in a coplanar waveguide. To quantitatively calibrate these data, we use the fact that in the quantum-Hall-effect regime the conductance at the maxima of its magnetic field dependence is determined by extended states. Therefore, it should be frequency independent in a broad frequency domain. The procedure is verified by studies of a well-characterized p-SiGe/Ge/SiGe heterostructure.

  10. Measurements of Plasma Potential Distribution in Segmented Electrode Hall Thruster

    SciTech Connect

    Y. Raitses; D. Staack; N.J. Fisch

    2001-10-16

    Use of a segmented electrode placed at the Hall thruster exit can substantially reduce the voltage potential drop in the fringing magnetic field outside the thruster channel. In this paper, we investigate the dependence of this effect on thruster operating conditions and segmented electrode configuration. A fast movable emissive probe is used to measure plasma potential in a 1 kW laboratory Hall thruster with semented electrodes made of a graphite material. Relatively small probe-induced perturbations of the thruster discharge in the vicinity of the thruster exit allow a reasonable comparison of the measured results for different thruster configurations. It is shown that the plasma potential distribution is almost not sensitive to changes of the electrode potential, but depends on the magnetic field distribution and the electrode placement.

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

    SciTech Connect

    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.

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

    SciTech Connect

    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.

  13. Precise quantization of anomalous Hall effect near zero magnetic field

    SciTech Connect

    Bestwick, A. J.; Fox, E. J.; Kou, Xufeng; Pan, Lei; Wang, Kang L.; Goldhaber-Gordon, D.

    2015-05-04

    In this study, we report a nearly ideal quantum anomalous Hall effect in a three-dimensional topological insulator thin film with ferromagnetic doping. Near zero applied magnetic field we measure exact quantization in the Hall resistance to within a part per 10,000 and a longitudinal resistivity under 1 Ω per square, with chiral edge transport explicitly confirmed by nonlocal measurements. Deviations from this behavior are found to be caused by thermally activated carriers, as indicated by an Arrhenius law temperature dependence. Using the deviations as a thermometer, we demonstrate an unexpected magnetocaloric effect and use it to reach near-perfect quantization by cooling the sample below the dilution refrigerator base temperature in a process approximating adiabatic demagnetization refrigeration.

  14. Fractionally charged skyrmions in fractional quantum Hall effect

    SciTech Connect

    Balram, Ajit C.; Wurstbauer, U.; Wójs, A.; Pinczuk, A.; Jain, J. K.

    2015-11-26

    The fractional quantum Hall effect has inspired searches for exotic emergent topological particles, such as fractionally charged excitations, composite fermions, abelian and nonabelian anyons and Majorana fermions. Fractionally charged skyrmions, which support both topological charge and topological vortex-like spin structure, have also been predicted to occur in the vicinity of 1/3 filling of the lowest Landau level. The fractional skyrmions, however, are anticipated to be exceedingly fragile, suppressed by very small Zeeman energies. Here we show that, slightly away from 1/3 filling, the smallest manifestations of the fractional skyrmion exist in the excitation spectrum for a broad range of Zeeman energies, and appear in resonant inelastic light scattering experiments as well-defined resonances slightly below the long wavelength spin wave mode. The spectroscopy of these exotic bound states serves as a sensitive tool for investigating the residual interaction between composite fermions, responsible for delicate new fractional quantum Hall states in this filling factor region.

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

    SciTech Connect

    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.

  16. Comparison of Conventional Diesel and Reactivity Controlled Compression Ignition (RCCI) Combustion in a Light-Duty Engine

    Energy.gov [DOE]

    CFD modeling was used to compare conventional diesel and dual-fuel Reactivity Controlled Compression Ignition combustion at US Tier 2 Bin 5 NOx levels, while accounting for Diesel Exhaust Fluid needed to meet NOx constraints with aftertreatment.

  17. NE-24 Gilman Hall, University of California, Certification Documentation

    Office of Legacy Management (LM)

    Gilman Hall, University of California, Certification Documentation Berkeley, California, Conditional Verlette Gatlin, MA-232 I am attaching for entry into the Public Document Room, two copies of the subject documentation. These documents are the backup data for the conditional certification that the site is radiologically acceptable for restricted use as noted in the certification statement published in the Federal Register. Inasmuch as the conditional certification is made public through the

  18. Forest County Potawatomi Community Parking Ramp and Wundar Hall Projects

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tribal Energy Program Review Forest County Potawatomi Community Parking Ramp and Wundar Hall Projects Background on Forest County Potawatomi Community  FCPC has trust land in northern Wisconsin and City of Milwaukee  Facilities in northern Wisconsin include tribal government offices, a health and wellness center, a cultural museum, a casino and hotel and various other smaller support facilities and enterprises. Trust Land in Milwaukee Project Greenfire  In late 2007, FCPC established

  19. Transition in Electron Transport in a Cylindrical Hall Thruster

    SciTech Connect

    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.

  20. Gradient instabilities of electromagnetic waves in Hall thruster plasma

    SciTech Connect

    Tomilin, Dmitry

    2013-04-15

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

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

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Robert B. Laughlin and the 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 L. Störmer and Daniel C. Tsui for 'their discovery of a new form of quantum fluid with fractionally charged excitations'. ' ... [I]n 1982 ... Störmer and Tsui discovered the effect. In 1983, Laughlin, then at the Lawrence Livermore National Laboratory, provided the theoretical explanation

  2. Quantum Hall effect in graphene decorated with disordered multilayer patches

    SciTech Connect

    Nam, Youngwoo; Sun, Jie Lindvall, Niclas; Kireev, Dmitry; Yurgens, August; Jae Yang, Seung; Rae Park, Chong; Woo Park, Yung

    2013-12-02

    Quantum Hall effect (QHE) is observed in graphene grown by chemical vapour deposition using platinum catalyst. The QHE is even seen in samples which are irregularly decorated with disordered multilayer graphene patches and have very low mobility (<500 cm{sup 2}V{sup −1}s{sup −1}). The effect does not seem to depend on electronic mobility and uniformity of the resulting material, which indicates the robustness of QHE in graphene.

  3. (Meeting on fusion reactor materials)

    SciTech Connect

    Jones, R.H. ); Klueh, R.L.; Rowcliffe, A.F.; Wiffen, F.W. ); Loomis, B.A. )

    1990-11-01

    During his visit to the KfK, Karlsruhe, F. W. Wiffen attended the IEA 12th Working Group Meeting on Fusion Reactor Materials. Plans were made for a low-activation materials workshop at Culham, UK, for April 1991, a data base workshop in Europe for June 1991, and a molecular dynamics workshop in the United States in 1991. At the 11th IEA Executive Committee on Fusion Materials, discussions centered on the recent FPAC and Colombo panel review in the United States and EC, respectively. The Committee also reviewed recent progress toward a neutron source in the United States (CWDD) and in Japan (ESNIT). A meeting with D. R. Harries (consultant to J. Darvas) yielded a useful overview of the EC technology program for fusion. Of particular interest to the US program is a strong effort on a conventional ferritic/martensitic steel for fist wall/blanket operation beyond NET/ITER.

  4. Metal-to-insulator switching in quantum anomalous Hall states

    DOE PAGES [OSTI]

    Kou, Xufeng; Pan, Lei; Wang, Jing; Fan, Yabin; Choi, Eun Sang; Lee, Wei -Li; Nie, Tianxiao; Murata, Koichi; Shao, Qiming; Zhang, Shou -Cheng; et al

    2015-10-07

    After decades of searching for the dissipationless transport in the absence of any external magnetic field, quantum anomalous Hall effect (QAHE) was recently achieved in magnetic topological insulator films. However, the universal phase diagram of QAHE and its relation with quantum Hall effect (QHE) remain to be investigated. Here, we report the experimental observation of the giant longitudinal resistance peak and zero Hall conductance plateau at the coercive field in the six quintuple-layer (Cr0.12Bi0.26Sb0.62)2Te3 film, and demonstrate the metal-to-insulator switching between two opposite QAHE plateau states up to 0.3 K. Moreover, the universal QAHE phase diagram is confirmed through themore » angle-dependent measurements. Our results address that the quantum phase transitions in both QAHE and QHE regimes are in the same universality class, yet the microscopic details are different. Additionally, the realization of the QAHE insulating state unveils new ways to explore quantum phase-related physics and applications.« less

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

    SciTech Connect

    Hofer, Richard R. Goebel, Dan M.; Mikellides, Ioannis G.; Katz, Ira

    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.

  6. Metal-to-insulator switching in quantum anomalous Hall states

    SciTech Connect

    Kou, Xufeng; Pan, Lei; Wang, Jing; Fan, Yabin; Choi, Eun Sang; Lee, Wei -Li; Nie, Tianxiao; Murata, Koichi; Shao, Qiming; Zhang, Shou -Cheng; Wang, Kang L.

    2015-10-07

    After decades of searching for the dissipationless transport in the absence of any external magnetic field, quantum anomalous Hall effect (QAHE) was recently achieved in magnetic topological insulator films. However, the universal phase diagram of QAHE and its relation with quantum Hall effect (QHE) remain to be investigated. Here, we report the experimental observation of the giant longitudinal resistance peak and zero Hall conductance plateau at the coercive field in the six quintuple-layer (Cr0.12Bi0.26Sb0.62)2Te3 film, and demonstrate the metal-to-insulator switching between two opposite QAHE plateau states up to 0.3 K. Moreover, the universal QAHE phase diagram is confirmed through the angle-dependent measurements. Our results address that the quantum phase transitions in both QAHE and QHE regimes are in the same universality class, yet the microscopic details are different. Additionally, the realization of the QAHE insulating state unveils new ways to explore quantum phase-related physics and applications.

  7. HALL EFFECT CONTROLLED GAS DYNAMICS IN PROTOPLANETARY DISKS. II. FULL 3D SIMULATIONS TOWARD THE OUTER DISK

    SciTech Connect

    Bai, Xue-Ning

    2015-01-10

    We perform three-dimensional stratified shearing-box magnetohydrodynamic (MHD) simulations on the gas dynamics of protoplanetary disks with a net vertical magnetic flux of B {sub z0}. All three nonideal MHD effects, Ohmic resistivity, the Hall effect, and ambipolar diffusion, are included in a self-consistent manner based on equilibrium chemistry. We focus on regions toward outer disk radii, from 5 to 60 AU, where Ohmic resistivity tends to become negligible, ambipolar diffusion dominates over an extended region across the disk height, and the Hall effect largely controls the dynamics near the disk midplane. We find that at around R = 5 AU the system launches a laminar or weakly turbulent magnetocentrifugal wind when the net vertical field B {sub z0} is not too weak. Moreover, the wind is able to achieve and maintain a configuration with reflection symmetry at the disk midplane. The case with anti-aligned field polarity (Ω⋅B{sub z0}<0) is more susceptible to the magnetorotational instability (MRI) when B {sub z0} decreases, leading to an outflow oscillating in radial directions and very inefficient angular momentum transport. At the outer disk around and beyond R = 30 AU, the system shows vigorous MRI turbulence in the surface layer due to far-UV ionization, which efficiently drives disk accretion. The Hall effect affects the stability of the midplane region to the MRI, leading to strong/weak Maxwell stress for aligned/anti-aligned field polarities. Nevertheless, the midplane region is only very weakly turbulent in both cases. Overall, the basic picture is analogous to the conventional layered accretion scenario applied to the outer disk. In addition, we find that the vertical magnetic flux is strongly concentrated into thin, azimuthally extended shells in most of our simulations beyond 15 AU, leading to enhanced radial density variations know as zonal flows. Theoretical implications and observational consequences are briefly discussed.

  8. Water Power Program Peer Review Meeting Agenda | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Program Peer Review Meeting Agenda Water Power Program Peer Review Meeting Agenda The Water Power Program Peer Review Meeting brought together program staff and water power professionals to evaluate DOE funded conventional hydropower and marine and hydrokinetic R&D projects for their contribution to the mission and goals of the Water Power Program and to assess progress made against stated objectives. 2011_water_power_peer_review_agenda.pdf (668.99 KB) More Documents & Publications Water

  9. UDAC Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meetings UDAC Meetings November 27, 2013 UDAC Meeting - December 16, 2013 Federal Register Notice for December 16, 2013 UDAC Meeting UDAC 2014 Findings and Recommendations Minutes from December 16, 2013 UDAC Meeting November 20, 2013 UDAC Meeting - December 9, 2013 Federal Register Notice for December 9, 2013 UDAC Meeting Federal Register Notice for December 9, 2013 UDAC Meeting Meeting documents from December 9, 2013 UDAC Meeting Minutes from December 9, 2013 UDAC Meeting November 18, 2013 UDAC

  10. EMAB Meeting- December 2011

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board minutes, transcripts, and presentations from meeting held in Washington, DC on December 5, 2011.

  11. AGU Fall Meeting 2014

    Energy.gov [DOE]

    The American Geophysical Union's 47th Annual Fall Meeting will showcase groundbreaking research in the geosciences.

  12. Conventional armed forces in Europe: Technology scenario development

    SciTech Connect

    Houser, G.M.

    1990-07-01

    In January 1986, the Soviet Union's Mikhail Gorbachev proposed elimination of all nuclear weapons by the year 2000. In April of that year, Mr. Gorbachev proposed substantial reductions of conventional weapons in Europe, from the Atlantic Ocean to the Ural Mountains, including reductions in operational-tactical nuclear weapons. In May 1986, the North Atlantic Treaty Organization (NATO) responded with the Brussels Declaration on Conventional Arms Control,'' which indicated readiness to open East/West discussions on establishing a mandate for negotiating conventional arms control throughout Europe. The Group of 23,'' which met in Vienna beginning in February 1987, concluded the meeting in January 1989 with a mandate for the Conventional Armed Forced in Europe (CFE) negotiations. On 6 March 1989, CFE talks began, and these talks have continued through six rounds (as of April 1990). Although US President George Bush, on 30 May 1989, called for agreement within six months to a year, and the Malta meeting of December 1989 called for completion of a CFE agreement by the end of 1990, much remains to be negotiated. This report provides three types of information. First, treaty provisions brought to the table by both sides are compared. Second, on the basis of these provisions, problem areas for each of the provision elements are postulated and possible scenarios for resolving these problem areas are developed. Third, the scenarios are used as requirements for tasks assigned program elements for possible US implementation of a CFE treaty. As progress is achieved during the negotiations, this report could be updated, as necessary, in each of the areas to provide a continuing systematic basis for program implementation and technology development. 8 refs.

  13. Physics and modeling of an end-Hall (gridless) ion source

    SciTech Connect

    Oudini, N.; Hagelaar, G. J. M.; Boeuf, J.-P.; Garrrigues, L.

    2011-04-01

    In an end-Hall source, an ion beam is extracted from a magnetized plasma and accelerated by the plasma electric field without grids. The principle of end-Hall sources is similar to that of Hall effect thrusters (or closed-drift thrusters), but their design is optimized for processing applications (ion beam assisted deposition or substrate cleaning) rather than propulsion. The beam divergence is larger in end-Hall ion sources, and these sources can operate at low ion energies. Although end-Hall sources are commonly used in the surface processing industry, no detailed modeling of these sources is available, and their operation is quite empirical. In this paper, a self-consistent, two-dimensional, quasineutral model of an end-Hall ion source is developed and used in order to improve the understanding of the basic physics of these plasma sources and to quantify the parameters controlling the properties of the extracted ion beam.

  14. Meeting Attendance - 32nd Tritium Focus Group Meeting | Department of

    Office of Environmental Management (EM)

    Energy 2nd Tritium Focus Group Meeting Meeting Attendance - 32nd Tritium Focus Group Meeting Attendees to the 32nd Tritium Focus Group Meeting held in Germantown, Maryland, April 23-25, 2013. Meeting Attendance - 32nd Tritium Focus Group Meeting (76.56 KB) More Documents & Publications Meeting Attendance - 33rd Tritium Focus Group Meeting Meeting Attendance - 34th Tritium Focus Group Meeting Tritium 2013 Presentation

  15. Meeting Attendance - 35th Tritium Focus Group Meeting | Department of

    Office of Environmental Management (EM)

    Energy 5th Tritium Focus Group Meeting Meeting Attendance - 35th Tritium Focus Group Meeting Attendees to the 35th Tritium Focus Group Meeting held in Princeton, NJ on May 5-7, 2015. Meeting Attendance - 35th Tritium Focus Group Meeting (108.18 KB) More Documents & Publications Meeting Attendance - 34th Tritium Focus Group Meeting Meeting Attendance - 33rd Tritium Focus Group Meeting

  16. June 24, 2015 in 100E Hildebrand Hall | Center for Gas SeparationsRele...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4, 2015 in 100E Hildebrand Hall Previous Next List Stephen Meckler (Lawrence Berkeley National Laboratory) Layered Zif-Polymer Composites Accessed through Metal Oxide Precursors...

  17. ARM - 2004 Science Team Meeting Pictures

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Meeting2004 Science Team Meeting Pictures 2004 Meeting 2004 Meeting Home Proceedings ... Winners Pictures Meeting Archives ARM Science Team Meeting Proceedings Past Science ...

  18. CASL Industry Council Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Industry Council Meeting 4 - 5 November 2015 Meeting Minutes The autumn 2015 meeting of the Industry Council (IC) for the Consortium for Advanced Simulation of Light Water Reactors (CASL) was held on 4 - 5 November 2015 at the Oak Ridge National Laboratory (ORNL) in Oak Ridge, TN. The first day of meeting was a joint meeting of the CASL Industry and Science Councils and was held at the Spallation Neutron Source (SNS) facility at ORNL. An independent IC meeting was held the morning of the second

  19. Chiral topological superconductor and half-integer conductance plateau from quantum anomalous Hall plateau transition

    DOE PAGES [OSTI]

    Wang, Jing; Zhou, Quan; Lian, Biao; Zhang, Shou -Cheng

    2015-08-31

    Here, we propose to realize a two-dimensional chiral topological superconducting (TSC) state from the quantum anomalous Hall plateau transition in a magnetic topological insulator thin film through the proximity effect to a conventional s -wave superconductor. This state has a full pairing gap in the bulk and a single chiral Majorana mode at the edge. The optimal condition for realizing such chiral TSC is to have inequivalent superconducting pairing amplitudes on top and bottom surfaces of the doped magnetic topological insulator. We further propose several transport experiments to detect the chiral TSC. One unique signature is that the conductance willmore » be quantized into a half-integer plateau at the coercive field in this hybrid system. In particular, with the point contact formed by a superconducting junction, the conductance oscillates between e2 /2h and e2 /h with the frequency determined by the voltage across the junction. We close by discussing the feasibility of these experimental proposals.« less

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

    DOEpatents

    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.

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

    DOEpatents

    Besmann, Theodore M.; Lowden, Richard A.

    1990-01-01

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

  2. Plasma lens and plume divergence in the Hall thruster

    SciTech Connect

    Fruchtman, A.; Cohen-Zur, A.

    2006-09-11

    The effect of magnetic field curvature on the plume divergence in the Hall thruster is analyzed. The two-dimensional plasma flow and electric field are determined self-consistently within the paraxial approximation in this plasma lens, a nearly axial electric field perpendicular to the curved magnetic field lines. The ion radial velocity along the thruster is described analytically. The authors suggest positioning the ionization layer near the zero of the magnetic field in a reversing-direction field configuration for a minimal beam divergence. They also show that an additional emitting electrode can reduce plume divergence.

  3. Topological Hall conductivity of vortex and skyrmion spin textures

    SciTech Connect

    Jalil, M. B. A. Ghee Tan, Seng; Eason, Kwaku; Kong, Jian Feng

    2014-05-07

    We analyze the topological Hall conductivity experienced by conduction electrons whose spins are strongly coupled to axially symmetric spin textures, such as magnetic vortex and skyrmion of types I and II, theoretically by gauge theory, and numerically via micromagnetic simulations. The numerical results are in agreement with the theoretical predictions. Divergence between the two is seen when the vortex/skyrmion core radius is comparable or larger than the element size, and when the skyrmion configuration breaks down at high Dzyaloshinskii-Moriya interaction strength.

  4. PREPRINT QUASIPARTICLE AGGREGATION I N THE FRACTIONAL QUANTUM HALL EFFECT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    91618 PREPRINT QUASIPARTICLE AGGREGATION I N THE FRACTIONAL QUANTUM HALL EFFECT R. B. Laughlin This paper was prepared for submittal to the Proceedings of the 17th International Conference on the Physics of Semi conductors San Francisco, California August 6-10, 1984 October 10, 1984 This is a preprint of a paper intended for publication in a journal or proceedings. Since changes may be made before publication, this preprint is made available with the un- derstanding that it will not be cited or

  5. Vortex equations governing the fractional quantum Hall effect

    SciTech Connect

    Medina, Luciano

    2015-09-15

    An existence theory is established for a coupled non-linear elliptic system, known as “vortex equations,” describing the fractional quantum Hall effect in 2-dimensional double-layered electron systems. Via variational methods, we prove the existence and uniqueness of multiple vortices over a doubly periodic domain and the full plane. In the doubly periodic situation, explicit sufficient and necessary conditions are obtained that relate the size of the domain and the vortex numbers. For the full plane case, existence is established for all finite-energy solutions and exponential decay estimates are proved. Quantization phenomena of the magnetic flux are found in both cases.

  6. ACS National Meeting (San Diego, CA) - JCAP

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ACS National Meeting (San Diego, CA) ACS National Meeting (San Diego, CA) Sun, Mar 13, 2016 7:00am 07:00 Thu, Mar 17, 2016 5:00pm 17:00 San Diego Convention Center 111 W Harbor Dr San Diego, CA 92101 Harry Atwater, "Artificial Photosynthesis: Progress, Science Prospects and Technology Outlook" Abstract: The design of highly efficient, non-biological energy conversion system that generate fuels directly from sunlight, water and carbon dioxide is both a formidable challenge and an

  7. NARUC Summer Committee Meetings

    Energy.gov [DOE]

    At the NARUC Summer Committee Meetings, you will meet utility regulators from every State in the U.S., along with federal and international officials. This is a wonderful opportunity for learning...

  8. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The meeting is open to the public. Participants at this week's meeting will receive a presentation on the Federal Oversight Model—Ensuring a Safe Work Environment.

  9. FY 2010 Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fiscal Year 2010 NSSAB Meetings Meetings, Minutes and Handouts Date Type Time Location Agenda Handouts Minutes Oct 1, 2009 Industrial Sites EMAD Tour All Day Nevada Test Site NA...

  10. FY 2009 Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fiscal Year 2009 Meetings Meetings, Minutes and Handouts Date Type Time Location Agenda Handouts Minutes Oct 1, 2008 EMPIRE Committee 4:30 - 6 pm DOE Nevada Support Facility 232...

  11. ORSSAB monthly meeting

    Energy.gov [DOE]

    The meeting is open to the public. Participants at this week's meeting will receive a presentation on "Y-12 Mercury Cleanup Strategy and Plan for a Y-12 Water Treatment Plant."

  12. NUG Business Meeting

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    NUG Business Meeting NUG Business Meeting February 26, 2015 Location: Berkeley Lab and NERSC OSF (All events are available for remote access over the web). Dates: Feb. 23-26, 2015...

  13. EIR SCOPING MEETING AGREEMENT FORM EIR SCOPING MEETING FOR _...

    Office of Environmental Management (EM)

    SCOPING MEETING AGREEMENT FORM EIR SCOPING MEETING FOR ... Date of Scoping Meeting: Date of Planned On-Site EIR: Name OrganizationPosition PhoneEmail ...

  14. Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Agenda Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Agenda Agenda for the Joint Meeting on Hydrogen Delivery Modeling and Analysis, May 8-9, 2007 ...

  15. Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Attendees List Attendee list from the Joint Meeting on Hydrogen Delivery Modeling and Analysis, May 8-9, 2007 ...

  16. Electricity Advisory Committee Meeting, June 11-12, 2012 - Meeting...

    Energy.gov [DOE] (indexed site)

    the June 11-12, 2012 meeting of the Electricity Advisory Committee. EAC Meeting Minutes ... KB) More Documents & Publications Electricity Advisory Committee Meeting, March ...

  17. Electricity Advisory Committee Meeting Notice of Open Meeting...

    Energy.gov [DOE] (indexed site)

    Electricity Advisory Committee Meeting: Notice of Open Meeting October 29, 2010 (908.89 KB) More Documents & Publications Electricity Advisory Committee Notice of Open Meeting ...

  18. Electricity Advisory Committee Meeting Notice of Open Meeting...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electricity Advisory Committee Meeting Notice of Open Meeting March 10, 2011: Federal Register Notice Volume 76, No. 38 - Feb. 25, 2011 Electricity Advisory Committee Meeting. This ...

  19. ARM - Meetings and Presentations

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Meetings and Presentations Related Links MC3E Home News News & Press MC3E Backgrounder (PDF, 1.61MB) SGP Images ARM flickr site Field Blog ARM Data Discovery Browse Data Deployment Operations Measurements Science Plan (PDF, 3.85 MB) Featured Data Plots SGP Data Plots (all) Experiment Planning Steering Committee Science Questions MC3E Proposal Abstract and Related Campaigns Meetings Cloud Life Cycle Working Group Contacts Michael Jensen, Lead Scientist Meetings and Presentations Next Meeting:

  20. NASEO 2016 Annual Meeting

    Energy.gov [DOE]

    The National Association of State Energy Officials (NASEO) is hosting its annual meeting in Providence, Rhode Island.

  1. Announcements and Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Meetings Announcements and Meetings Monthly PDSF User Meeting Minutes PDSF Users Meeting minutes are available back to late 2009 here. Read More » PDSF Selected Announcements The most recent operations and events in PDSF. Read More » PDSF Email Announcements Archive An archive of email announcements sent to NERSC users regarding PDSF. Read More » PDSF Mailing Lists There are a number of different PDSF mailing lists... Read More » In Case of Difficulty Accessing PDSF or HPSS NERSC Systems

  2. NASEO 2015 Annual Meeting

    Energy.gov [DOE]

    The National Association of State Energy Officials (NASEO) Annual Meeting will be held in San Diego, California.

  3. NASEO Midwest Regional Meeting

    Energy.gov [DOE]

    The National Association of State Energy Officials (NASEO) is hosting its Midwest Regional Meeting in Des Moines, Iowa.

  4. Considerations When Comparing LED and Conventional Lighting ...

    Energy.gov [DOE] (indexed site)

    When comparing LED lighting performance to conventional lighting, buyers will want to consider energy efficiency, operating life and lumen depreciation, light outputdistribution, ...

  5. Commercial Photovoltaic Application- California Convention Center

    Office of Energy Efficiency and Renewable Energy (EERE)

    In this b-roll, several photovoltaic arrays turn a California convention center rooftop and parking structure into a source of clean energy.

  6. Japanese Ratify Convention on Supplementary Compensation for...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The United States Ratifies The Convention On Supplementary Compensation United States and France Sign Joint Statement on Civil Liability for Nuclear Damage A Statement from U.S. ...

  7. Alaska Federation of Natives Annual Convention

    Energy.gov [DOE]

    The Alaska Federation of Natives (AFN) Convention is the largest representative annual gathering in the United States of any Native peoples.

  8. High-temperature superconductivity: A conventional conundrum...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: High-temperature superconductivity: A conventional conundrum Citation ... OSTI Identifier: 1245373 Report Number(s): BNL--111729-2016-JA Journal ID: ISSN 1745-2473; ...

  9. ATNI Mid-Year Convention 2016

    Energy.gov [DOE]

    The Affiliated Tribes of Northwest Indians (ATNI) is hosting its mid-year convention. The three-day conference is hosted by the Confederated Tribes of Grand Ronde.

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

    SciTech Connect

    Mikellides, Ioannis G.; Katz, Ira; Hofer, Richard R.; Goebel, Dan M.

    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.

  11. Fractionally charged skyrmions in fractional quantum Hall effect

    DOE PAGES [OSTI]

    Balram, Ajit C.; Wurstbauer, U.; Wójs, A.; Pinczuk, A.; Jain, J. K.

    2015-11-26

    The fractional quantum Hall effect has inspired searches for exotic emergent topological particles, such as fractionally charged excitations, composite fermions, abelian and nonabelian anyons and Majorana fermions. Fractionally charged skyrmions, which support both topological charge and topological vortex-like spin structure, have also been predicted to occur in the vicinity of 1/3 filling of the lowest Landau level. The fractional skyrmions, however, are anticipated to be exceedingly fragile, suppressed by very small Zeeman energies. Here we show that, slightly away from 1/3 filling, the smallest manifestations of the fractional skyrmion exist in the excitation spectrum for a broad range of Zeemanmore » energies, and appear in resonant inelastic light scattering experiments as well-defined resonances slightly below the long wavelength spin wave mode. The spectroscopy of these exotic bound states serves as a sensitive tool for investigating the residual interaction between composite fermions, responsible for delicate new fractional quantum Hall states in this filling factor region.« less

  12. Refrigeration Recovery for Experiment Hall High Target Loads

    SciTech Connect

    Peter Knudsen, Venkatarao Ganni, Errol Yuksek, Jonathan Creel

    2010-04-01

    The Qweak experiment at Jefferson Lab (JLab) is a 3000 W hydrogen target scheduled for the summer of 2010 and running for two years until the planned shut-down for 12GeV. The End Station Refrigerator (ESR) supports the three experiment halls, two of which may normally have a hydrogen target. The refrigerator for the ESR is a CTI/Helix 1500 W 4.5-K refrigerator nominally capable of supporting a 1250 W target load at 12 bar and 15-K (plus 1100 W of 4.5-K refrigeration). As such, this refrigerator is not capable of supporting the Qweak experiment target load in its present condition. Additionally, since the installation of an ambient air vaporizer for a single use, two week run duration of a high target load in the summer of 2003 there has been a consistent usage of the Central Helium Liquefier’s (CHL’s) 3 bar 4.5-K helium, supplied via an existing transfer-line to the ESR, for other high target loads. By the fall of 2004, it was apparent that this continued use of CHL’s supercritical helium was routinely being sought by the hall experimenters. As such, a method of refrigeration recovery was proposed to reduce the support required of CHL for these high target loads, including the anticipated Qweak experiment, while utilizing the recovered CHL refrigeration from the target to increase ESR’s 12 bar 15-K capacity.

  13. Hall effect in quantum critical charge-cluster glass

    DOE PAGES [OSTI]

    Bozovic, Ivan; Wu, Jie; Bollinger, Anthony T.; Sun, Yujie

    2016-04-04

    Upon doping, cuprates undergo a quantum phase transition from an insulator to a d-wave superconductor. The nature of this transition and of the insulating state is vividly debated. Here, we study the Hall effect in La2-xSrxCuO4 (LSCO) samples doped near the quantum critical point at x ≈ 0.06. Dramatic fluctuations in the Hall resistance appear below TCG ≈ 1.5 K and increase as the sample is cooled down further, signaling quantum critical behavior. We explore the doping dependence of this effect in detail, by studying a combinatorial LSCO library in which the Sr content is varied in extremely fine steps,more » Δx ≈ 0.00008. Furthermore, we observe that quantum charge fluctuations wash out when superconductivity emerges but can be restored when the latter is suppressed by applying a magnetic field, showing that the two instabilities compete for the ground state.« less

  14. Hall magnetohydrodynamic reconnection in the plasmoid unstable regime

    SciTech Connect

    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.

  15. Chairs Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Chairs Meetings Chairs Meetings August 31, 2016 Chairs Meeting - August 2016 EM SSAB minutes, agenda, and presentations from meeting held in Las Vegas, NV April 20, 2016 Chairs Meeting - April 2016 EM SSAB minutes, agenda, and presentations from meeting held in Oak Ridge, Tennessee September 2, 2015 Chairs Meeting - September 2015 EM SSAB minutes, agenda, and presentations from meeting held in Santa Fe, New Mexico. April 30, 2015 Chairs Meeting - April 2015 EM SSAB minutes, agenda, and

  16. Chairs Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    from meeting held in Santa Fe, New Mexico. April 30, 2015 Chairs Meeting - April 2015 EM SSAB minutes, agenda, and presentations from meeting held in Augusta, Georgia. ...

  17. Water Power Program Peer Review Meeting Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Program Peer Review Agenda Meeting objectives: Review and evaluate the strategy and goals of the Water Program Review and evaluate the progress and accomplishments of the Program's conventional hydropower and marine and hydrokinetic projects funded in FY2009 through FY2011 Foster interactions among the national laboratories, industry, and academic institutions conducting research and development on behalf of the program Tuesday, November 1, 2011 Marine and Hydrokinetic Projects [Magnolia

  18. ARM - Publications: Science Team Meeting Documents

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    A High Spectral Resolution Lidar for Long-Term Arctic Deployment Eloranta, E. W., Razenkov, I. A., Garcia, J. P., and Hedrick, J. P., University of Wisconsin-Madison Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A new High Spectral Resolution Lidar (HSRL) has been constructed for long-term operation in the Arctic. Vertical profiles of optical depth, scattering cross section, and depolarization will be observed. Unlike conventional lidar measurements, HSRL measurements

  19. Electricity Advisory Committee Meeting, July 12, 2011 - Meeting Minutes and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Transcript | Department of Energy July 12, 2011 - Meeting Minutes and Transcript Electricity Advisory Committee Meeting, July 12, 2011 - Meeting Minutes and Transcript Meeting minutes and transcript for the July 12, 2011 meeting of the Electricity Advisory Committee. EAC Meeting Minutes - July 12, 2011.pdf (596 KB) EAC Meeting Transcript - July 12, 2011.pdf (576.42 KB) More Documents & Publications Electricity Advisory Committee Meeting, October 29, 2010: Transcript Electricity Advisory

  20. Enclosures STC Stakeholder Meeting Presentation

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Enclosures STC Residential Energy Efficiency Stakeholder Meeting Wednesday, February 29, 2012 - Austin, Texas Residential Energy Efficiency Stakeholder Meeting Wednesday, February ...

  1. URTAC Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meetings URTAC Meetings November 27, 2013 URTAC Meeting - December 18, 2013 November 18, 2013 URTAC Meeting - December 4, 2013 October 2, 2013 URTAC Meeting - October 2013 Federal Register Notice for October 10, 2013 URTAC Meeting The 24th Meeting of the Unconventional Resources Technology Advisory Committee (URTAC), previously scheduled for October 10, 2013, is postponed until further notice due to a lapse in Federal funding. September 19, 2013 URTAC Meeting - September 19, 2013 September 19,

  2. TEC Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meetings TEC Meetings TEC would meet twice per year to identify and discuss issues of concern regarding DOE transportation activities. Issues included planning for transportation, communications, Tribal issues, emergency preparedness, training, and funding. The following is a listing of TEC meeting venues and dates. Meeting related documents are available through 1997. TEC MEETING SUMMARIES February 6, 2008 TEC Meeting Summaries - February 2008 TEC Meeting summary and related documents from

  3. Atlantic City Convention Center Solar Power Plant | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Convention Center Solar Power Plant Jump to: navigation, search Name Atlantic City Convention Center Solar Power Plant Facility Atlantic City Convention Center Sector Solar...

  4. Quantitative analytical model for magnetic reconnection in hall magnetohydrodynamics

    SciTech Connect

    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}.

  5. The Hall D solenoid helium refrigeration system at JLab

    SciTech Connect

    Laverdure, Nathaniel A.; Creel, Jonathan D.; Dixon, Kelly d.; Ganni, Venkatarao; Martin, Floyd D.; Norton, Robert O.; Radovic, Sasa

    2014-01-01

    Hall D, the new Jefferson Lab experimental facility built for the 12GeV upgrade, features a LASS 1.85 m bore solenoid magnet supported by a 4.5 K helium refrigerator system. This system consists of a CTI 2800 4.5 K refrigerator cold box, three 150 hp screw compressors, helium gas management and storage, and liquid helium and nitrogen storage for stand-alone operation. The magnet interfaces with the cryo refrigeration system through an LN2-shielded distribution box and transfer line system, both designed and fabricated by JLab. The distribution box uses a thermo siphon design to respectively cool four magnet coils and shields with liquid helium and nitrogen. We describe the salient design features of the cryo system and discuss our recent commissioning experience.

  6. A low-cost multiple Hall probe current transducer

    SciTech Connect

    Scoville, J.T.; Petersen, P.I. )

    1991-03-01

    An inexpensive but highly stable and accurate transducer has been developed for the measurement of large currents associated with the operation of the DIII-D tokamak at General Atomics. The inherent problems with integrator circuits required by Rogowski loops and the excessive cost of secondary compensation current'' devices have led to this development. The transducer requires several inexpensive Hall effect devices and a simple, stable, and linear interface circuit. Analysis of the initial performance characteristics is very encouraging and has led to several useful applications of the transducer to date, with plans for the installation of additional devices in the future. The low cost and reasonable accuracy of the transducer make it an attractive alternative to commercially available devices.

  7. Perturbation analysis of ionization oscillations in Hall effect thrusters

    SciTech Connect

    Hara, Kentaro Sekerak, Michael J.; Boyd, Iain D.; Gallimore, Alec D.

    2014-12-15

    A perturbation analysis of ionization oscillations, which cause low frequency oscillations of the discharge plasma, in Hall effect thrusters is presented including the electron energy equation in addition to heavy-species transport. Excitation and stabilization of such oscillations, often called the breathing mode, are discussed in terms of the growth rate obtained from the linear perturbation equations of the discharge plasma. The instability induced from the ionization occurs only when the perturbation in the electron energy is included while the neutral atom flow contributes to the damping of the oscillation. Effects of the electron energy loss mechanisms such as wall heat loss, inelastic collisions, and convective heat flux are discussed. It is shown that the ionization oscillations can be damped when the electron transport is reduced and the electron temperature increases so that the energy loss to the wall stabilizes the ionization instability.

  8. Hall MHD Stability and Turbulence in Magnetically Accelerated Plasmas

    SciTech Connect

    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.

  9. Consent Order public meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Consent Order public meeting Consent Order public meeting WHEN: Apr 28, 2016 5:00 PM - 7:00 PM WHERE: Los Alamos County Council Chambers CATEGORY: Community TYPE: Meeting INTERNAL: Calendar Login Event Description On March 1, 2005, NMED, the Department of Energy (DOE) and the Regents of the University of California entered into the 2005 Consent Order that prescribed fence-to-fence cleanup requirements for the Laboratory. The public comment period on the Consent Order closes May 16, 2016

  10. STEAB October Meeting Minutes

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    STEAB October 2015 Meeting October 6-7, 2015 Renaissance Washington, DC Dupont Circle Hotel Washington, DC OCTOBER MEETING ATTENDEES Designated Federal Officer (DFO):  Michael Li, DFO, EERE, DOE. STEAB MEETING ATTENDANCE BOARD MEMBERS Present Absent Jeff Ackermann, Director, Colorado Energy Office X Roger Berliner, Council President, Montgomery County Council X Susan Brown, Deputy Administrator, Wisconsin Division of Energy X Tom Carey, Director, Energy and Rehabilitation Programs, New York

  11. 2015 CAMD Users Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    CAMD 2015 Symposium followed by the CAMD Users' Meeting SAXS Workshop Thursday, April 23th, 2015 CAMD, 6980 Jefferson Highway, Baton Rouge, LA 70806 CAMD 2015 Symposium followed by the CAMD Users' Meeting Friday, April 24th, 2015 LTRC Transportation Training and Education Center (Map) The CAMD 2015 Symposium followed by the CAMD Users' Meeting will be held on Friday, April 24th at the LTRC Transportation Training and Education Center, 4099 Gourrier Avenue, Baton Rouge, LA 70808, directly behind

  12. Tritium Focus Group Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Fall 2015 Tritium Focus Group Meeting November 3 - 5, 2015 Meeting location: J.R. Oppenheimer Study Center TA 3, Building 207, Main Floor Technical Area 3 Map (pdf) Directions via Google Maps Meeting Information Tritium Focus Group Charter (pdf) Hotel Information Classified Session Information Los Alamos Restaurants (pdf) LANL Information Visiting Los Alamos Area Map Weather Contacts Mike Rogers (505) 665-2513 mrogers@lanl.gov Chandra Savage Marsden (505) 664-0183 chandra@lanl.gov

  13. Meeting of the Electricity Advisory Committee Meeting, March 26-27, 2015- Meeting Minutes and Transcripts

    Energy.gov [DOE]

    Meeting minutes and transcripts for the March 26-27, 2015 meeting of the Electricity Advisory Committee.

  14. Meeting of the Electricity Advisory Committee Meeting, September 29-30, 2015- Meeting Minutes and Transcripts

    Energy.gov [DOE]

    Meeting minutes and transcripts for the September 29-30, 2015 meeting of the Electric Advisory Committee.

  15. UDAC Meeting - January 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Minutes from January 19, 2012 UDAC Meeting (17th Meeting) Minutes from January 19, 2012 UDAC Meeting (17th Meeting) (5.08 MB) More Documents & Publications UDAC Meeting - September 2012 UDAC Meeting - September 2013 UDAC Meeting - February 2011

  16. UDAC Meeting - March 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1, 2012 UDAC Meeting (18th Meeting) Minutes from March 1, 2012 UDAC Meeting (18th Meeting) (1.31 MB) More Documents & Publications URTAC Meeting - January 2012 URTAC Meeting - February 2012 UDAC Meeting - January 2012

  17. URTAC Meeting - January 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    January 2012 URTAC Meeting - January 2012 Meeting minutes from January 2012 meeting URTAC - Minutes for January 19, 2012 Meeting (7.3 MB) More Documents & Publications URTAC Meeting - September 2010 URTAC Meeting - September 19, 2013 URTAC Meeting - September

  18. Model National Implementing Legislation for the Chemical Weapons Convention

    SciTech Connect

    Tanzman, E.A.; Kellman, B.

    1997-12-31

    It is an honor to address this distinguished audience. We are grateful to the Republique Gabonaise for hosting this important gathering and to the staff of the Organization for the Prohibition of Chemical Weapons (OPCW) for supporting it. This seminar is another excellent opportunity for all of us to learn from each other about how the Chemical Weapons Convention (CWC) can become a foundation of arms control in Africa and around the world. At this meeting we speak only for ourselves, neither for the government of the United States of America nor for any other institution. This paper discusses model national implementing legislation under the CWC. Every State Party likely must enact implementing legislation - not only the few States Parties that will declare and destroy chemical weapons, but also the many States Parties that have never had a chemical weapons programme.

  19. Solar on Salt Lake City Convention Center

    Energy.gov [DOE]

    This photograph features the Calvin L. Rampton Salt Palace Convention Center, which will soon become a solar power-producing giant. Salt Lake County and its project partners announced plans to...

  20. High-temperature superconductivity: A conventional conundrum

    DOE PAGES [OSTI]

    Božović, Ivan

    2016-01-07

    High-temperature superconductivity in ultrathin films of iron selenide deposited on strontium titanate has been attributed to various exotic mechanisms, and new experiments indicate that it may be conventional, with broader implications.

  1. Indian Gaming 2012 Tradeshow and Convention

    Energy.gov [DOE]

    The National Indian Gaming Association (NIGA) 2012 tradeshow and convention will take place April 1-4, 2012, in San Diego, California. The event features seminars and trainings and other activities...

  2. Photovoltaic System on Orange County Convention Center

    Office of Energy Efficiency and Renewable Energy (EERE)

    The solar photovoltaic (PV) rooftop system on the Orange County Convention Center in Orlando, Florida, was completed in 2009 over the south concourse. This project is a U.S. Department of Energy...

  3. Nanoporous films: Beyond conventional to the conformal

    DOE PAGES [OSTI]

    Allendorf, Mark D.; Stavila, Vitalie

    2015-12-01

    Here, thin and continuous films of porous metal-organic frameworks can now be conformally deposited on various substrates using a vapor-phase synthesis approach that departs from conventional solution-based routes.

  4. Nanoporous films: From conventional to the conformal

    DOE PAGES [OSTI]

    Allendorf, Mark D.; Stavila, Vitalie

    2015-12-14

    Here, thin and continuous films of porous metal-organic frameworks can now be conformally deposited on various substrates using a vapor-phase synthesis approach that departs from conventional solution-based routes.

  5. SPE Western Regional Meeting

    Energy.gov [DOE] (indexed site)

    Hydrates Advisory Committee Meeting Program Funding Louis Capitanio Methane Hydrate Program Manager Office of Oil and Natural Gas June 7, 2013 FY 2012 & FY 2013 Budgets FY 2012...

  6. CEE Winter Program Meeting

    Energy.gov [DOE]

    The Consortium for Energy Efficiency (CEE) is hosting its winter program meeting to work together and define market interventions that increase energy efficiency.

  7. MEETINGS WITH UNION OFFICIALS

    Energy.gov [DOE]

    Guidance as to how to handle requests from union officials to meet with Department officials so that there is no undue legal risk.

  8. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The ORSSAB monthly board meeting is open to the public. This month, participants will receive an updateon the U-233 Project.

  9. ORSSAB Monthly Board Meeting

    Energy.gov [DOE]

    The ORSSAB monthly board meetingis open to the public. The board will receive an update on the Transuranic Waste Processing Center.

  10. CEE Summer Program Meeting

    Energy.gov [DOE]

    The Consortium for Energy Efficiency (CEE) is hosting the Summer Program Meeting to cover market transformation to accelerate uptake of efficient goods and services.

  11. CEE Winter Program Meeting

    Energy.gov [DOE]

    Consortium for Energy Efficiency (CEE) is hosting their Winter Program Meeting, a two-day conference held in Long Beach, California.

  12. Volttron Technical meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    VOLTTRON Technical Meeting Virginia Tech Advanced Research Institute July 2015 Our mission * Accelerate clean energy technologies, companies and projects * Create high-quality jobs ...

  13. Quadrennial Energy Review Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Quadrennial Energy Review Meeting September 8, 2014 Commissioner Garry Brown, NYS Public Service Commission Topic: Business Models and Regulation of Regulated Utilities - Do They ...

  14. KC TEC Meeting Summary

    Office of Environmental Management (EM)

    ... Excepted track generally only requires an inspection once every 30 days. Railroads must ... Carolina State Law Enforcement Division (SLED) TEC Meeting Summary 13 July 24-25, 2007 ...

  15. ORSSAB Monthly Board Meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    The ORSSAB MonthlyBoard meeting is open to the public. This month, participants will be briefed on the East Tennessee Technology Park Zone 1 Soils Proposed Plan.

  16. Meetings and Workshops

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Exchange Program Surplus Power Sales Reports Meetings and Workshops January 21, 2016 Generation Inputs Workshop Location, time and call-in information Materials to be posted...

  17. ORSSAB Montly Meeting

    Energy.gov [DOE]

    This meeting is open to the public, and the board will discuss the Oak Ridge Environmental Management program's FY 2016 budget and prioritization.

  18. 2009 ISCMEM Annual Meeting

    Office of Environmental Management (EM)

    ASCEM User Outreach CY16 ASCEM Full NQA-1 Release ASCEM ASCEM Community Release ... testing and documentation for meeting NQA-1 requirements Regulatory (NQA-1) ...

  19. 2012 User Meeting Workshops

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Workshops Print 2012 ALS User Meeting Workshops Home Agenda Awards Exhibitors Lodging Posters Registration Transportation Workshops This e-mail address is being protected from...

  20. 2012 User Meeting Agenda

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2 User Meeting Agenda Print Agenda Home Agenda Awards Exhibitors Lodging Posters Registration Transportation Workshops This e-mail address is being protected from spambots. You...

  1. OPSI Annual Meeting

    Energy.gov [DOE]

    The Organization of PJM States, Inc. (OPSI) is hosting its annual meeting in Chicago, IL, on October 13-14, 2014.

  2. OPSI Annual Meeting

    Energy.gov [DOE]

    The Organization of PJM States, Inc. (OPSI) is hosting its annual meeting with sessions covering clean power, gas and electric coordination, and more.

  3. Past Meetings and Workshops

    Office of Energy Efficiency and Renewable Energy (EERE)

    This page archives past meetings where Bioenergy Technologies Office staff have participated and includes copies of the presentations shared at each event.

  4. Nuclear Physics: Meetings

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Physics Topics: Meetings Talks given at the Science & Technology Review 2004 Larry Cardman: Science Overview and the Experimental Program ppt | pdf Tony Thomas: Nuclear Physics ...

  5. CASL Industry Council Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Meeting 12-13 April 2016 Meeting Minutes Page | 1 The spring 2016 meeting of the Industry Council (IC) for the Consortium for Advanced Simulation of Light Water Reactors (CASL) was held on April 12-13, 2016 at the Aloft Hotel in Greenville, South Carolina and was led by the CASL IC Chairman Scott Thomas of Duke Energy and the new CASL IC Executive Director Erik Mader from the EPRI Fuel Reliability Program. The meeting location and logistics were excellent and the group profusely thanked Lorie

  6. ORSSAB monthly board meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board members and participants will hear a presentation and updates about the "Oak Ridge ReservationGroundwater Strategic Plan." The meeting is open to the public.

  7. ORSSAB monthly board meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board members and participants will hear a presentation and updates about "Sufficient Waste Disposal Capacity on the Oak Ridge Reservation." The meeting is open to the public.

  8. Building America Top Innovations Hall of Fame Profile … Low...

    Energy Saver

    fan as the only form of mechanical ventilation in the home. Building America research has shown this is the lowest-cost approach that can meet ASHRAE 62.2 ventilation requirements. ...

  9. Halls Middle School students get a taste of science at Y-12 | Y-12 National

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Security Complex Halls Middle School ... Halls Middle School students get a taste of science at Y-12 Posted: May 21, 2013 - 12:40pm Engineering, science and history experts give Halls Middle School students a taste of science past and present at Y-12. During a visit to the Y-12 National Security Complex on May 20, eighth graders Miller Sullivan, center, and Tyler Young, right, learn what happens to a banana when it is submerged in liquid nitrogen. Darryl Smith, left, was one of four

  10. Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi

    Office of Scientific and Technical Information (OSTI)

    Honeycomb (Journal Article) | DOE PAGES Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi Honeycomb Title: Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi Honeycomb Using first-principles electronic structure calculations, we predict half-fluorinated GaBi honeycomb under tensile strain to harbor a quantum anomalous Hall (QAH) insulator phase. We show that this QAH phase is driven by a single inversion in the band structure at the Γ point.

  11. Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi

    Office of Scientific and Technical Information (OSTI)

    Honeycomb (Journal Article) | SciTech Connect Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi Honeycomb Citation Details In-Document Search Title: Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi Honeycomb Using first-principles electronic structure calculations, we predict half-fluorinated GaBi honeycomb under tensile strain to harbor a quantum anomalous Hall (QAH) insulator phase. We show that this QAH phase is driven by a single inversion in

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

    SciTech Connect

    Liu, Chao-Xing; Qi, Xiao-Liang; Dai, Xi; Fang, Zhong; 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.

  13. Ultrahigh sensitivity of anomalous Hall effect sensor based on Cr-doped

    Office of Scientific and Technical Information (OSTI)

    Bi2Te3 topological insulator thin films (Journal Article) | DOE PAGES Ultrahigh sensitivity of anomalous Hall effect sensor based on Cr-doped Bi2Te3 topological insulator thin films This content will become publicly available on July 1, 2017 Title: Ultrahigh sensitivity of anomalous Hall effect sensor based on Cr-doped Bi2Te3 topological insulator thin films Anomalous Hall effect (AHE) was recently discovered in magnetic element-doped topological insulators (TIs), which promises low power

  14. Ultrahigh sensitivity of anomalous Hall effect sensor based on Cr-doped

    Office of Scientific and Technical Information (OSTI)

    Bi2Te3 topological insulator thin films (Journal Article) | SciTech Connect Journal Article: Ultrahigh sensitivity of anomalous Hall effect sensor based on Cr-doped Bi2Te3 topological insulator thin films Citation Details In-Document Search This content will become publicly available on July 1, 2017 Title: Ultrahigh sensitivity of anomalous Hall effect sensor based on Cr-doped Bi2Te3 topological insulator thin films Anomalous Hall effect (AHE) was recently discovered in magnetic

  15. All electrical manipulation of magnetization dynamics in a ferromagnet by antiferromagnets with anisotropic spin Hall effects.

    SciTech Connect

    Zhang, Wei; Jungfleisch, Matthias B.; Freimuth, Frank; Jiang, Wanjun; Sklenar, Joseph; Pearson, John E.; Ketterson, John B.; Mokrousov, Yuri; Hoffmann, Axel

    2015-10-06

    We investigate spin-orbit torques of metallic CuAu-I-type antiferromagnets using spin-torque ferromagnetic resonance tuned by a dc-bias current. The observed spin torques predominantly arise from diffusive transport of spin current generated by the spin Hall effect. We find a growth-orientation dependence of the spin torques by studying epitaxial samples, which may be correlated to the anisotropy of the spin Hall effect. The observed anisotropy is consistent with first-principles calculations on the intrinsic spin Hall effect. Our work suggests large tunable spin-orbit effects in magnetically-ordered materials.

  16. Formation of quantum spin Hall state on Si surface and energy gap scaling

    Office of Scientific and Technical Information (OSTI)

    with strength of spin orbit coupling (Journal Article) | SciTech Connect Journal Article: Formation of quantum spin Hall state on Si surface and energy gap scaling with strength of spin orbit coupling Citation Details In-Document Search Title: Formation of quantum spin Hall state on Si surface and energy gap scaling with strength of spin orbit coupling For potential applications in spintronics and quantum computing, it is desirable to place a quantum spin Hall insulator [i.e., a 2D

  17. Meetings and Workshops Archive

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... October 3-5, 2011 Lawrence Berkeley National Laboratory, California More information SPIE Optics + Photonics 2011 August 21-25, 2011 San Diego Convention Center San Diego, ...

  18. Conventional engine technology. volume 3: comparisons and future potential

    SciTech Connect

    Dowdy, M.W.

    1981-12-01

    The status of five conventional automobile engine technologies was assessed and the future potential for increasing fuel economy and reducing exhaust emission was discussed, using the 1980 EPA California emisions standards as a comparative basis. By 1986, the fuel economy of a uniform charge Otto engine with a three-way catalyst is expected to increase 10%, while vehicles with lean burn (fast burn) engines should show a 20% fuel economy increase. Although vehicles with stratified-charge engines and rotary engines are expected to improve, their fuel economy will remain inferior to the other engine types. When adequate NO emissions control methods are implemented to meet the EPA requirements, vehicles with prechamber diesel engines are expected to yield a fuel economy advantage of about 15%. While successful introduction of direct injection diesel engine technology will provide a fuel savings of 30 to 35%, the planned regulation of exhaust particulates could seriously hinder this technology, because it is expected that only the smallest diesel engine vehicles could meet the proposed particulate requirements.

  19. Conventional engine technology. Volume III. Comparisons and future potential

    SciTech Connect

    Dowdey, M.W.

    1981-12-15

    The status of five conventional automobile engine technologies is assessed and the future potential for increasing fuel economy and reducing exhaust emissions is discussed, using the 1980 EPA California emissions standards as a comparative basis. By 1986, the fuel economy of a uniform charge Otto engine with a three-way catalyst is expected to increase 10%, while vehicles with lean burn (fast burn) engines should show a 20% fuel economy increase. Although vehicles with stratified-charge engines and rotary engines are expected to improve, their fuel economy will remain inferior to the other engine types. When adequate NO/sub x/ emissions control methods are implemented to meet the EPA requirements, vehicles with prechamber diesel engines are expected to yield a fuel economy advantage of about 15%. While successful introduction of direct injection diesel engine technology will provide a fuel savings of 30 to 35%, the planned regulation of exhaust particulates could seriously hinder this technology, because it is expected that only the smallest diesel engine vehicles could meet the proposed particulate requirements.

  20. Electricity Advisory Committee Meeting, October 19-20, 2011 - Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Minutes and Transcripts | Department of Energy Meeting, October 19-20, 2011 - Meeting Minutes and Transcripts Electricity Advisory Committee Meeting, October 19-20, 2011 - Meeting Minutes and Transcripts Meeting minutes and transcripts for the October 19-20, 2011 meeting of the Electricity Advisory Committee. EAC Meeting Minutes October 19-20, 2011.pdf (306.74 KB) EAC Meeting Transcript October 19, 2011.pdf (322.98 KB) EAC Meeting Transcript October 20, 2011.pdf (635.04 KB) More Documents

  1. EAC Meeting Cancelled

    Energy.gov [DOE]

    The Electricity Advisory Committee meeting scheduled to be held October 2 - October 3 has been cancelled due to the uncertainty of continuing operations of the Federal government. If this meeting is rescheduled for a later date, details will be posted online and published in a new Federal Register notice.

  2. Model national implementing legislation for the chemical weapons convention

    SciTech Connect

    Tanzman, E.A.; Kellman, B.

    1995-12-31

    Good day. It is an honor to address this distinguished audience. I am grateful to the Federal Democratic Republic of Ethiopia for hosting this important gathering and to the staff of the Provisional Technical Secretariat of the Organization for the Prohibition of Chemical Weapons (PTS) for sponsoring it. I also want to express my gratitude to the DePaul University Human Rights Law Institute, the Merck Foundation, and Argonne National Laboratory for supporting my participation here. This workshop is an another excellent opportunity for all of us to learn from each other about how the Chemical Weapons Convention (CWC) can become a foundation of arms control in Africa and around the world. At this meeting I speak only for myself, neither for the government of the United States of America nor for any other institution. Today, I shall discuss model national implementing legislation under the CWC. Such implementing legislation is likely to be required in every State Party--not only to the few States Parties that will declare and destroy chemical weapons, but also to the many States Parties that have never had a chemical weapons programme. This new need for national measures to implement multilateral arms control agreements has generated unease due to a perception that implementation may be burdensome and at odds with existing national law. In 1993, concerns arose that the complexity of integrating the treaty with national law would cause each nation to implement the Convention without regard to what other nations were doing, thereby causing inconsistencies among States Parties in how the Convention would be carried but.

  3. Formation of quantum spin Hall state on Si surface and energy...

    Office of Scientific and Technical Information (OSTI)

    Si surface and energy gap scaling with strength of spin orbit coupling Title: Formation of quantum spin Hall state on Si surface and energy gap scaling with strength of spin orbit ...

  4. JLab mourns loss of long-time colleague, Hall B staff scientist...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    JLab mourns loss of long-time colleague, Hall B staff scientist and senior YerPI physicist Kim Egiyan August 25, 2006 Kim Egiyan Kim Egiyan K.Sh. Egiyan was born on 18 June 1935 in ...

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

    SciTech Connect

    Yang, Yumeng; Wu, Baolei; Wu, Yihong; Yao, Kui; Shannigrahi, Santiranjan; Zong, Baoyu

    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.

  6. Quantification of the spin-Hall anti-damping torque with a resonance spectrometer

    SciTech Connect

    Emori, Satoru Nan, Tianxiang; Oxholm, Trevor M.; Boone, Carl T.; Sun, Nian X.; Jones, John G.; Howe, Brandon M.; Brown, Gail J.; Budil, David E.

    2015-01-12

    We present a simple technique using a cavity-based resonance spectrometer to quantify the anti-damping torque due to the spin Hall effect. Modification of ferromagnetic resonance is observed as a function of small DC current in sub-mm-wide strips of bilayers, consisting of magnetically soft FeGaB and strong spin-Hall metal Ta. From the detected current-induced linewidth change, we obtain an effective spin Hall angle of 0.08–0.09 independent of the magnetic layer thickness. Our results demonstrate that a sensitive resonance spectrometer can be a general tool to investigate spin Hall effects in various material systems, even those with vanishingly low conductivity and magnetoresistance.

  7. Beam Position Reconstruction for the g2p Experiment in Hall A...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Beam Position Reconstruction for the g2p Experiment in Hall A at Jefferson Lab Citation Details In-Document Search Title: Beam Position Reconstruction for the g2p...

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

    Office of Legacy Management (LM)

    Wasthgton, DC 20585 ' ,,' . .' . . s ,' FEi,l 6 jg& ,. . . ' I s. i ,-' .' ,, -. ,. The Honoradle':Rudolf Juiliani City'Hall New York, New York I0007 i ', 1" Dear ...

  9. Metallization and Hall-effect of Mg{sub 2}Ge under high pressure

    SciTech Connect

    Li, Yuqiang; Gao, Yang; Han, Yonghao Liu, Cailong; Peng, Gang; Ke, Feng; Gao, Chunxiao; Wang, Qinglin; Ma, Yanzhang

    2015-10-05

    The electrical transport properties of Mg{sub 2}Ge under high pressure were studied with the in situ temperature-dependent resistivity and Hall-effect measurements. The theoretically predicted metallization of Mg{sub 2}Ge was definitely found around 7.4 GPa by the temperature-dependent resistivity measurement. Other two pressure-induced structural phase transitions were also reflected by the measurements. Hall-effect measurement showed that the dominant charge carrier in the metallic Mg{sub 2}Ge was hole, indicating the “bad metal” nature of Mg{sub 2}Ge. The Hall mobility and charge carrier concentration results pointed out that the electrical transport behavior in the antifluorite phase was controlled by the increase quantity of drifting electrons under high pressure, but in both anticotunnite and Ni{sub 2}In-type phases it was governed by the Hall mobility.

  10. APS Seminars & Meetings | Advanced Photon Source

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Science Series A lunchtime gathering with presentations of the newest results from the experiment hall floor. Speakers are not announced in advance. Monthly APS Colloquium A...

  11. Former Herring-Hall-Marvin Safe Company Site in Hbmilton, Ohio

    Office of Legacy Management (LM)

    Remedial Action Performed at the Former Herring-Hall-Marvin Safe Company Site in Hbmilton, Ohio Department' of Energy Former Sites Restoration Division Oak Ridge Operations Office December 1996 @ Printed on recyclsdlmcyclable paper. 4.1838151.1 s CERTIFICATION DOCKET FOR THE REMEDIAL ACTION PERFORMED AT THE FORMER HERRING-HALL-MARVIN SAFE COMYANY SITE IN HAMILTON, OHIO DECEMBER 1996 . "I. Prepared for United States Department of Energy Oak Ridge Operations Office Under Contract No.

  12. Micromagnetic study of auto-oscillation modes in spin-Hall nano-oscillators

    SciTech Connect

    Ulrichs, H. Demidov, V. E.; Demokritov, S. O.

    2014-01-27

    We present a numerical study of magnetization dynamics in a recently introduced spin torque nano-oscillator, whose operational principle relies on the spin-Hall effect—spin-Hall nano-oscillators. Our numerical results show good agreement with the experimentally observed behaviors and provide detailed information about the features of the primary auto-oscillation mode observed in the experiments. They also clarify the physical nature of the secondary auto-oscillation mode, which was experimentally observed under certain conditions only.

  13. Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Agenda |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Agenda Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Agenda Agenda for the Joint Meeting on Hydrogen Delivery Modeling and Analysis, May 8-9, 2007 deliv_analysis_agenda.pdf (77.66 KB) More Documents & Publications Hydrogen Delivery Analysis Models Hydrogen Delivery Analysis Plus Meeting: DTT, STT, HPTT, Other Analysts, Invited Guests Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Attendees List

  14. Focus Group Meeting (Topical Meeting) | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meeting Date: June 11, 2009 Documents Available for Download Meeting Agenda (17.51 KB) Meeting Summary/Participants (43.82 KB) Task Schedule (26.2 KB) EFCOG Overview (894.09 KB) Assessing Training Gaps in ORPS (301.26 KB) Oversight and Enforcement Inspection Schedule (34.62 KB) More Documents & Publications Focus Group Meeting (Activities Status) Focus Group Meeting (Activities Status) Focus Group Meeting (Topical Wrap-Up)

  15. Meeting Attendance - 34th Tritium Focus Group Meeting | Department of

    Office of Environmental Management (EM)

    Energy 4th Tritium Focus Group Meeting Meeting Attendance - 34th Tritium Focus Group Meeting Attendees to the 34th Tritium Focus Group Meeting held in Idaho Falls, ID on September 23-25, 2014. Meeting Attendance - 34th Tritium Focus Group Meeting (57.55 KB) More Documents & Publications Technological Assessment of Plasma Facing Components for DEMO Reactors Overview of tritium activity in Japan

  16. NUG Monthly Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    0th, 2015 NUG Monthly Meeting CRT updates Jeff Broughton NUG Meeting, 12/10/2015 NERSC Move: Outage Schedule and User Impact - 3 - Helen He NUG Meeting, 12/10/2015 Main Timeline Event Date Cori Phase 1 available to all users Already available! Edison offline to move to CRT Nov 30, 2015 (estimate to last 6 weeks), back online with SLURM batch scheduler Hopper retires Dec 15, 2015 Global project and global homes file systems migration to CRT Nov - Dec 2015 JGI and PDSF file systems move to CRT Jan

  17. CASL Industry Council Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    6 CASL Industry Council Meeting March 26-27, 2013 - Cranberry Township, PA Minutes The sixth meeting of the Industry Council (IC) for the Consortium for Advanced Simulation of Light Water Reactors (CASL) was held on March 26-27, 2013 at Westinghouse in Cranberry Township, PA. The first day of the Industry Council was chaired by John Gaertner and the second day was chaired by Heather Feldman. The meeting attendees and their affiliations are listed on Attachment 1 to these minutes. Attendance was

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

    SciTech Connect

    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.

  19. Fractional quantum Hall junctions and two-channel Kondo models

    SciTech Connect

    Sandler, Nancy P.; Fradkin, Eduardo

    2001-06-15

    A mapping between fractional quantum Hall (FQH) junctions and the two-channel Kondo model is presented. We discuss this relation in detail for the particular case of a junction of a FQH state at {nu}=1/3 and a normal metal. We show that in the strong coupling regime this junction has a non-Fermi-liquid fixed point. At this fixed point the electron Green{close_quote}s function has a branch cut and the impurity entropy is equal to S=1/2ln2. We construct the space of perturbations at the strong coupling fixed point and find that the dimension of the tunneling operator is 1/2. These properties are strongly reminiscent of the non-Fermi-liquid fixed points of a number of quantum impurity models, particularly the two-channel Kondo model. However we have found that, in spite of these similarities, the Hilbert spaces of these two systems are quite different. In particular, although in a special limit the Hamiltonians of both systems are the same, their Hilbert spaces are not since they are determined by physically distinct boundary conditions. As a consequence the spectrum of operators in the two problems is different.

  20. Magnetoresistance, electrical conductivity, and Hall effect of glassy carbon

    SciTech Connect

    Baker, D.F.

    1983-02-01

    These properties of glassy carbon heat treated for three hours between 1200 and 2700/sup 0/C were measured from 3 to 300/sup 0/K in magnetic fields up to 5 tesla. The magnetoresistance was generally negative and saturated with reciprocal temperature, but still increased as a function of magnetic field. The maximum negative magnetoresistance measured was 2.2% for 2700/sup 0/C material. Several models based on the negative magnetoresistance being proportional to the square of the magnetic moment were attempted; the best fit was obtained for the simplest model combining Curie and Pauli paramagnetism for heat treatments above 1600/sup 0/C. Positive magnetoresistance was found only in less than 1600/sup 0/C treated glassy carbon. The electrical conductivity, of the order of 200 (ohm-cm)/sup -1/ at room temperature, can be empirically written as sigma = A + Bexp(-CT/sup -1/4) - DT/sup -1/2. The Hall coefficient was independent of magnetic field, insensitive to temperature, but was a strong function of heat treatment temperature, crossing over from negative to positive at about 1700/sup 0/C and ranging from -0.048 to 0.126 cm/sup 3//coul. The idea of one-dimensional filaments in glassy carbon suggested by the electrical conductivity is compatible with the present consensus view of the microstructure.

  1. Effects of wall electrodes on Hall effect thruster plasma

    SciTech Connect

    Langendorf, S. Walker, M.; Xu, K.

    2015-02-15

    This paper investigates the physical mechanisms that cause beneficial and detrimental performance effect observed to date in Hall effect thrusters with wall electrodes. It is determined that the wall electrode sheath can reduce ion losses to the wall if positioned near the anode (outside the dense region of the plasma) such that an ion-repelling sheath is able to form. The ability of the wall electrode to form an ion-repelling sheath is inversely proportional to the current drawn—if the wall electrode becomes the dominant sink for the thruster discharge current, increases in wall electrode bias result in increased local plasma potential rather than an ion-repelling sheath. A single-fluid electron flow model gives results that mimic the observed potential structures and the current-sharing fractions between the anode and wall electrodes, showing that potential gradients in the presheath and bulk plasma come at the expense of current draw to the wall electrodes. Secondary electron emission from the wall electrodes (or lack thereof) is inferred to have a larger effect if the electrodes are positioned near the exit plane than if positioned near the anode, due to the difference in energy deposition from the plasma.

  2. Slice Product Review Meeting Materials (rd/meetings)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Slice Product Review Meeting Materials (updated January 31, 2006) September 15, 2005 - Kick-off Meeting September 9 Announcement Letter (PDF, 1 page, 30 KB, posted September 9,...

  3. Electricity Advisory Committee Meeting, July 12, 2011 - Meeting...

    Energy.gov [DOE] (indexed site)

    Electricity Advisory Committee. EAC Meeting Minutes - July 12, 2011.pdf (596 KB) EAC Meeting Transcript - July 12, 2011.pdf (576.42 KB) More Documents & Publications Electricity ...

  4. Electricity Advisory Committee Meeting, March 10, 2011 - Meeting...

    Energy.gov [DOE] (indexed site)

    the March 10, 2011 meeting of the Electricity Advisory Committee. FINAL EAC Meeting Minutes March 10, 2011.pdf (182.24 KB) TRANSCRIPTElectricity Advisory Committee ...

  5. FTCP Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    FTCP Face to Face Meeting - March 30, 2010 Meeting hosted by FTCP Chair and FTCP Deputy Chair with FTCP Agents and other FTCP personnel in attendance. Meetings consisted of FAQ...

  6. meeting | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    Contributor 6 September, 2012 - 08:51 GRR Update Meeting scheduled for 913 in D.C. D.C. GRR meeting update The next Geothermal Regulatory Roadmap update meeting will be...

  7. National Hydrogen Vision Meeting Proceedings

    Publication and Product Library

    This document provides presentations and summaries of the notes from the National Hydrogen Vision Meeting''s facilitated breakout sessions. The Vision Meeting, which took place November 15-16, 2001, k

  8. NARUC Summer Committee Meeting

    Energy.gov [DOE]

    The National Association of Regulatory Utility Commissioners (NARUC) is hosting their Summer Committee Meeting in New York City. Attendees will learn the latest in regulatory trends and sharing best practices.

  9. ORSSAB monthly board meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    The ORSSAB monthly board meeting is open to the public. The board will hear a presentation and discuss the development of a comprehensive mercury strategy for the Oak Ridge Reservation.

  10. ORSSAB Monthly Board Meeting

    Energy.gov [DOE]

    The September meeting will include a briefing on the DOE Oak Ridge Geographical Information System, the land use manager, and the Oak Ridge Environmental Information System, their functions,and...

  11. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The ORSSAB monthly meetingis open to the public. This month the board will hear a presentation and discussthe FY 2016Oak Ridge Officeof Environmental Management's budget and prioritization.

  12. ARM Science Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Science Meeting to be some bias in the data. While it is premature to draw conclusions on the basis of such a limited data set, several comments regarding this variability and bias ...

  13. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The Oak Ridge Site Specific Advisory Board's monthly board Meeting is open to the public. This month, DOE will discuss its Vision 2020. The presentation and conversation will focus on planning for...

  14. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The Oak Ridge Site Specific Advisory Board's monthly meeting is open to the public. The presentation and dicussion this month will focus on "Technology Development to Support Mercury Cleanup...

  15. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The ORSSAB monthly meeting is open to the public. This month, participants will receive an update and breifing about the EM Disposal Facility from the Oak Ridge Office of Environmental Managment.

  16. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The ORSSAB monthly meeting is open to the public. This month, participants will receive an update and breifing about the Groundwater Monitoring Program from the Oak Ridge Office of Environmental...

  17. NARUC Winter Committee Meetings

    Energy.gov [DOE]

    The National Association of Regulatory Utilities Commissioners (NARUC) Winter Committee Meetings offers its members and attendees the latest information from U.S. federal policymakers, consumer advocates, industry officials, and other stakeholders.

  18. NARUC Annual Meeting

    Energy.gov [DOE]

    The National Association of Regulatory Utility Commissioneers (NARUC) is hosting its annual meeting in San Fransisco, CA, from Nov. 16-19, 2014. Registration and housing begins Aug. 27. 

  19. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The ORSSAB monthly board meeting is open to the public. The board will receive an update on the Community Reuse Organization of East Tennessee efforts at the East Tennessee Technology Park.

  20. 2012 NARUC Winter Meeting

    Energy.gov [DOE]

    At the 2012 NARUC Winter Meeting, held February 5-8, 2012, the GTT presented a poster and handout of its vision of the future grid. 

  1. Spectrum Interagency Collaboration Meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Department of Energy (DOE) Office of Spectrum Management (OSM) will host the 2016 Interagency Spectrum Collaboration Meeting on July 26-27, 2016 at DOE Headquarters in Washington, DC.

  2. ORSSAB monthly board meeting

    Energy.gov [DOE]

    Board members and participants will hear a presentation and updates about the "Y-12 Mercury Cleanup Strategy and Plan for a Y-12 Water Treatment Plant." The meeting is open to the public.

  3. Meet John Heebner

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    john heebner Meet John Heebner John Heebner at the top of ... You got your Ph.D. in Optics and M.S. in Optical Engineering ... deflector and our small team used it to create a novel ...

  4. RAP Meeting Transcribed Flipcharts

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    October 9, 2012 NRDA IAP - Next Steps November Board meeting update, notice of comment period 20 minute presentation Outline of Plan o Final Plan by mid-January 2013...

  5. ORSSAB monthly board meeting

    Energy.gov [DOE]

    The ORSSAB monthly meeting is open to the public. This month, participants will receive an update and breifing about the FY 2018 Budget Formulation and Prioritization of Projects from the Oak Ridge...

  6. ORSSAB monthly meeting

    Energy.gov [DOE]

    The ORSSAB monthly meeting is open to the public. This month, participants will receive an update and breifing about the EM Disposal Facility from the Oak Ridge Office of Environmental Managment.

  7. STEAB January Meeting Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    JANUARY MEETING AGENDA January 13 - 14, 2015 Renaissance Washington DC Dupont Circle Hotel 1143 New Hampshire Ave, NW, Washington, DC 20037 DAY 1 January 13th 8:00 - 9:00 ...

  8. ORSSAB monthly board meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board members and participants will hear a presentation and updates about the "Selection of a Remediation Strategy for Trench 13 in Melton Valley." The meeting is open to the public.

  9. ORSSAB monthly board meeting

    Office of Energy Efficiency and Renewable Energy (EERE)

    Board members and participants will hear a presentation and updates about the "State of the Oak Ridge EM Program/FY 2016 Budget and Prioritization Planning." The meeting is open to the public.

  10. Meeting Agenda | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meeting Agenda Meeting Agenda Agenda for the DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project Review Meeting held February 8-9, 2005 at Argonne National Laboratory hp_agenda.pdf (34.32 KB) More Documents & Publications DOE Hydrogen Delivery Analysis and High Pressure Tanks R&D Project Review Meeting Agenda Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Agenda H2A Delivery Components Model and Analysis

  11. Quantifying the Operational Benefits of Conventional and Advanced Pumped Storage Hydro on Reliability and Efficiency: Preprint

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    08GO28308 Quantifying the Operational Benefits of Conventional and Advanced Pumped Storage Hydro on Reliability and Efficiency Preprint I. Krad and E. Ela National Renewable Energy Laboratory V. Koritarov Argonne National Laboratory To be presented at the IEEE Power and Energy Society General Meeting National Harbor, Maryland July 27-31, 2014 Conference Paper NREL/CP-5D00-60806 July 2014 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC

  12. Clean Energy Technologies a Focus of Chemical Engineers' Annual Meeting

    Energy.gov [DOE]

    The role of clean energy technologies in building a strong economy and improving quality of life is just one of the wide-ranging topics that will be covered at the 2012 Annual Meeting of the American Institute of Chemical Engineers, to be held October 28 through November 2 at the David L. Lawrence Convention Center in Pittsburgh, Pa.

  13. Town_Hall_Slides_5_8_14

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    8, 2014 Meeting Agenda * Opening Comments - Mayor Janway * Panel Member Introductions - John Heaton (Moderator) * CBFO Manager Remarks - Joe Franco * Update on Phase 3 Activities - Jim Blankenhorn * Event investigation continues * Environmental sampling * New Mexico Environment Department - Ryan Flynn * Closing Remarks - Joe Franco * Audience Questions * One question at a time please OPENING COMMENTS Joe Franco, CBFO Manager UPDATE ON RECOVERY ACTIVITIES Jim Blankenhorn, NWP Recovery Manager

  14. Global Bioenergy Partnership Meetings

    Energy.gov [DOE]

    The U.S. Department of Energy’s Bioenergy Technologies Office Sustainability Technology Manager Kristen Johnson represented the Office at the Global Bioenergy Partnership (GBEP) Meetings in Rome, Italy. The event included three meetings, the 7th annual GBEP Working Group on Capacity Building, the 13th annual Task Force on Sustainability to discuss the experiences with the GBEP Sustainability Indicators for Bioenergy, and the 18th annual GBEP Steering Committee to discuss strategies for sustainable bioenergy development and deployment.

  15. Coal Fleet Aging Meeting

    Energy Information Administration (EIA) (indexed site)

    7, 2016 MEMORANDUM TO: Dr. Ian Mead Assistant Administrator for Energy Analysis Jim Diefenderfer Director, Office of Electricity, Coal, Nuclear, and Renewables Analysis FROM: Coal and Uranium Analysis Team SUBJECT: Notes from the Coal Fleet Aging Meeting held on June 14, 2016 Attendees (36) *Indicates attendance via WebEx. 2 Framing the question This adjunct meeting of the AEO Coal Working Group (CWG) was held as a follow up to the previous Future Operating and Maintenance Considerations for the

  16. URTAC Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2007 Meeting minutes and Federal Register notice for June 22, 2007 meeting previous 1 2 next Petroleum Reserves International Cooperation Natural Gas Regulation Advisory Committees...

  17. UDAC Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meeting minutes and Federal Register Notice for UDAC June 21, 2007 Meeting previous 1 2 next Petroleum Reserves International Cooperation Natural Gas Regulation Advisory Committees...

  18. Buildings to Grid Technical Meeting

    SciTech Connect

    none,

    2012-12-01

    A meeting book created for the Buildings to Grid Technical Meeting that includes speaker and attendee bios, as well as white papers and discussion questions.

  19. Commission Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Commission Meetings Meetings of the Commission to Review the Effectiveness of the National Energy Laboratories October 23, 2015 Commission to Review the Effectiveness of the ...

  20. DOE Catalysis Working Group Meeting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    coffee, tea Joint Durability and Catalysis Working Groups Meeting Delaware A 9:00 - ... Pt Catalysts - Debbie Myers (ANL) Catalysis Working Group Meeting Delaware A 10:00 - ...

  1. March 23, 2016- SEAB Meeting

    Energy.gov [DOE]

    The Secretary of Energy Advisory Board (SEAB) will meet in Washington, DC on March 23. The meeting details and agenda are forthcoming.

  2. Final Meeting Summary Page 1

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Committee September 4, 2013 FINAL MEETING SUMMARY HANFORD ADVISORY BOARD PUBLIC INVOLVEMENT & COMMUNICATION COMMITTEE September 4, 2013 Kennewick, WA Topics in this Meeting Summary ...

  3. 2012 ALS User Meeting Awards

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2 ALS User Meeting Awards Recipients of the 2012 Users' Executive Committee awards and Student Poster Competition were announced Tuesday, October 9, at the ALS User Meeting. David...

  4. Electricity Advisory Committee (EAC) - Archived Meetings 2008...

    Energy Saver

    (EAC) - Archived Meetings 2008 - 2015 Electricity Advisory Committee (EAC) - Archived Meetings 2008 - 2015 Past meetings of the Electricity Advisory Committee (EAC) 2015 Meetings: ...

  5. Electricity Advisory Committee - 2016 Meetings | Department of...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    - 2016 Meetings Electricity Advisory Committee - 2016 Meetings Electricity Advisory Committee - 2016 Meetings MARCH 17 & 18, 2016 MEETING OF THE ELECTRICITY ADVISORY COMMITTEE ...

  6. NNMCAB Meeting Procedure | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meeting Procedure NNMCAB Meeting Procedure A quick guide to the parliamentary procedure used by the NNMCAB during full Board Meetings. NNMCAB Meeting Procedure Guide (198.19

  7. URTAC Meeting - March 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    March 2012 URTAC Meeting - March 2012 Minutes from March 2012 URTAC Meeting PDF icon URTAC - Minutes for March 8, 2012 Meeting More Documents & Publications URTAC Meeting - October ...

  8. The chemical weapons conventional legal issues

    SciTech Connect

    Tanzman, E.A.

    1997-12-31

    Because the Chemical Weapons Convention (CWC) contains the best developed verification regime in multilaterial arms control history, some have raised concerns for the chemical industry that have legal implications. Chief among these are safeguarding confidential business information and protecting constitutional rights during inspections. This discussion will show how the CWC and proposed national implementing legislation work together to allay these concerns. Both concerns are legitimate. Confidential business information could be lost to a national government or the CWC governing body accidentially or purposely. The CWC regime of routine and challenge inspections are searches under the constitution and could, if abused, potentially conflict with recognized commercial privacy interests. Neither concern justifies opposition to the convention, but both need to be addressed in national implementing legislation. Proposed US legislation goes far in this direction, but can be improved.

  9. Westin Convention Center Hotel, Pittsburgh, PA

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Materials for Harsh Service Conditions Workshop, November 19 - 20, 2015 Westin Convention Center Hotel, Pittsburgh, PA Topic - Materials for Harsh Service Conditions Page 1 of 4 11/12/2015 Overall Purpose * To gather input from stakeholders on the vision of future opportunities and technical challenges facing development and scale-up of materials, process, and equipment that can make step-change improvements of system performance in harsh service conditions. The Advanced Manufacturing Office

  10. Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Attendees

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    List | Department of Energy Attendees List Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Attendees List Attendee list from the Joint Meeting on Hydrogen Delivery Modeling and Analysis, May 8-9, 2007 deliv_analysis_attendees.pdf (77.35 KB) More Documents & Publications DOE and FreedomCAR and Fuel Partnership Analysis Workshop Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting Agenda DOE and FreedomCAR and Fuel Partnership Analysis Workshop

  11. Electricity Advisory Committee Meeting Notice of Open Meeting March 10,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2011: Federal Register Notice Volume 76, No. 38 - Feb. 25, 2011 | Department of Energy Meeting March 10, 2011: Federal Register Notice Volume 76, No. 38 - Feb. 25, 2011 Electricity Advisory Committee Meeting Notice of Open Meeting March 10, 2011: Federal Register Notice Volume 76, No. 38 - Feb. 25, 2011 Electricity Advisory Committee Meeting. This notice announces a meeting of the reestablished Electricity Advisory Committee (EAC) on March 10, 2011. The Federal Advisory Committee Act (Pub.

  12. Electricity Advisory Committee Meeting Notice of Open Meeting October 29,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2010: Federal Register Notice Volume 75, No. 192 - Oct. 5, 2010 | Department of Energy Meeting October 29, 2010: Federal Register Notice Volume 75, No. 192 - Oct. 5, 2010 Electricity Advisory Committee Meeting Notice of Open Meeting October 29, 2010: Federal Register Notice Volume 75, No. 192 - Oct. 5, 2010 Electricity Advisory Committee Meeting. This notice announces a meeting of the reestablished Electricity Advisory Committee (EAC) on October 29, 2010. The Federal Advisory Committee Act

  13. Hydrogen Contractors Meeting

    SciTech Connect

    Fitzsimmons, Tim

    2006-05-16

    This volume highlights the scientific content of the 2006 Hydrogen Contractors Meeting sponsored by the Division of Materials Sciences and Engineering (DMS&E) on behalf of the Office of Basic Energy Sciences (BES) of the U. S. Department of Energy (DOE). Hydrogen Contractors Meeting held from May 16-19, 2006 at the Crystal Gateway Marriott Hotel Arlington, Virginia. This meeting is the second in a series of research theme-based Contractors Meetings sponsored by DMS&E held in conjunction with our counterparts in the Office of Energy Efficiency and Renewable Energy (EERE) and the first with the Hydrogen, Fuel Cells and Infrastructure Technologies Program. The focus of this year’s meeting is BES funded fundamental research underpinning advancement of hydrogen storage. The major goals of these research efforts are the development of a fundamental scientific base in terms of new concepts, theories and computational tools; new characterization capabilities; and new materials that could be used or mimicked in advancing capabilities for hydrogen storage.

  14. Town Hall Slides 3_27_14.pptx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    March 27, 2014 AGENDA ITEMS Joe Franco CBFO Manager Meeting Agenda * WIPP Status presentations * Tammy Reynolds * Fran Williams * Joe Franco * Audience Questions * One question at a time please * Final Remarks / Close WIPP RECOVERY PLAN ACTIVITIES Tammy Reynolds NWP Recovery Manager WIPP Recovery Plan Activities * Install a Continuous Air Monitor (CAM) at Station B * Provides real time radiological information on exhaust stack air * Installation to complete this week * One week run time to

  15. Town_Hall_Slides_5_22_14.pptx

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    22, 2014 Meeting Agenda * Opening Comments - Mayor Dale Janway * Panel Member Introductions - John Heaton (Moderator) * CBFO Manager Remarks - Joe Franco * Update on Phase 3 Activities - Jim Blankenhorn * May 15 Entry * May 19 Entry * CEMRC Monitoring Update - Russell Hardy * Audience Questions * One question at a time please OPENING COMMENTS Joe Franco, CBFO Manager This Week's Events * Report from recent trip to Washington, D.C. * NMED Administrative Order * May 15 and May 19 entry updates *

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

    SciTech Connect

    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.

  17. ICEIWG Meeting Agendas and Summaries

    Energy.gov [DOE]

    Download meeting agendas and summaries from the Indian Country Energy and Infrastructure Working Group (ICEIWG).

  18. Conventional Hydropower Technologies, Wind And Water Power Program...

    Office of Environmental Management (EM)

    Conventional Hydropower Technologies, Wind And Water Power Program (WWPP) (Fact Sheet) Conventional Hydropower Technologies, Wind And Water Power Program (WWPP) (Fact Sheet) The US ...

  19. Non Conventional Energy Development Agency NEDA | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Non Conventional Energy Development Agency NEDA Jump to: navigation, search Name: Non-Conventional Energy Development Agency (NEDA) Place: Lucknow, Uttar Pradesh, India Zip: 226010...

  20. Public Comment re NOI on Convention on Supplementary Compensation...

    Office of Environmental Management (EM)

    Convention on Supplementary Compensation for Nuclear Damage Contingent Cost Allocation -75 FR 43945 PDF icon Public Comment re NOI on Convention on Supplementary Compensation for...

  1. File:EIA-conventional-gas.pdf | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    conventional-gas.pdf Jump to: navigation, search File File history File usage Natural Gas Production in Conventional Fields, Lower 48 States Size of this preview: 776 600...

  2. Convention on Supplementary Compensation for Nuclear Damage Contingent...

    Office of Environmental Management (EM)

    Section 934 Convention on Supplementary Compensation for Nuclear Damage Contingent Cost Allocation, Section 934 LES comments in response to Notice of Inquiry on Convention on...

  3. Public Comment re Convention on Supplementary Compensation for...

    Energy Saver

    Convention on Supplementary Compensation for Nuclear Damage Contingent Cost Allocation Public Comment re Convention on Supplementary Compensation for Nuclear Damage Contingent Cost...

  4. Energy.gov File Naming Conventions for Downloads | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    File Naming Conventions for Downloads Energy.gov File Naming Conventions for Downloads When uploading files to download pages in Energy.gov's content management system (CMS), ...

  5. Characterizing Structural Controls of EGS Candidate and Conventional...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Structural Controls of EGS Candidate and Conventional Geothermal Reservoirs in the Great ... Characterizing Structural Controls of EGS Candidate and Conventional Geothermal Reservoirs ...

  6. Challenging Conventional Wisdom: A Clean and Highly Efficient...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Challenging Conventional Wisdom: A Clean and Highly Efficient Opposed-Piston Two-Stroke Engine Challenging Conventional Wisdom: A Clean and Highly Efficient Opposed-Piston ...

  7. Fifth National Report for the Joint Convention on the Safety...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fifth National Report for the Joint Convention on the Safety of Spent Fuel Management and the Safety of Radioactive Waste Management Fifth National Report for the Joint Convention ...

  8. National Report Joint Convention on the Safety of Spent Fuel...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    National Report Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management National Report Joint Convention on the Safety of Spent ...

  9. NNMCAB Combined Committee Meeting

    Office of Environmental Management (EM)

    February 10, 2016 2:00 p.m. to 4:00 p.m. NNMCAB Office 94 Cities of Gold Road Santa Fe, NM 87506 AGENDA 2:00 p.m. Call to Order 2:02 p.m. Welcome and Introductions 2:08 p.m. Approval of Agenda 2:10 p.m. Approval of Minutes from January 13, 2016 2:15 p.m. New Business  Discussion on Committee Meeting Schedule for CY'16 (should committee meetings be held on bi-monthly meeting months)  Discussion on Draft Recommendation 2016-02 "Budget Priorities"  Other Items 3:00 p.m. Update

  10. ARM - Meetings and Presentations

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Meetings and Presentations Related Links amie.png 34h AMIE Home cindy.png 50h CINDY2011 dynamo.png 34h DYNAMO ARM Data Discovery Browse Data Outreach News & Press Blog Backgrounder (PDF, 1.2MB) Education Flyer (PDF, 2.0MB) Images ARM flickr site Official AMIE Logo AMIE Gear Experiment Planning Steering Committee AMIE-MANUS Proposal Abstract AMIE-GAN Proposal Abstract Meetings Cloud Life Cycle Working Group Deployment Operations Science Plan - TWP Manus Site (PDF, 2.1 MB) Science Plan - Gan

  11. Meet the CAMS Staff

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    meet the cams staff Meet the CAMS Staff Members of the CAMS staff standing near the 10 MV Tandem Van de Graaff Accelerator at CAMS, Lawrence Livermore National Laboratory. Members of the CAMS staff standing near the 10 MV Tandem Van de Graaff Accelerator at CAMS, Lawrence Livermore National Laboratory. Name Title E-mail Phone Graham Bench Director bench1@llnl.gov +1-925-423-5155 Taylor Broek Lawrence Scholar broek1@llnl.gov +1-925-422-9895 Thomas A. Brown Scientific Staff tabrown@llnl.gov

  12. STEAB April Meeting Agenda

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    APRIL MEETING AGENDA April 28 - 29, 2015 Hilton Garden Inn Downton Austin 500 N Interstate 35, Austin, TX 78701 Rio Grande Conference Room DAY 1 - April 28 th 8:00 - 8:45 Breakfast, hotel meeting room 8:45 - 9:00 Agenda and Tour Overview Monica and Frank 9:00 - 9:45 Overview of the Office of Technology Transitions (teleconference) Jetta Wong, DOE 9:45 - 10:00 Austin, TX Overview and Highlights Dub Taylor 10:00 - 10:30 HUD Follow-up (teleconference) Kevin Bush, HUD 10:30 - 10:45 Break 10:45 -

  13. Meeting Materials | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meeting Materials Meeting Materials Board Minutes July 27, 2016 NNMCAB Board Minutes: July 2016 Santa Fe Minutes of the July 27, 2016 Board Meeting at Santa Fe Community College Presentation, David Rhodes, DOE, Los Alamos LLCC Contract May 18, 2016 NNMCAB Board Minutes: May 2016 Pojoaque Minutes of the May 18, 2016 Board meeting: at Cities of Gold March 30, 2016 NNMCAB Board Minutes: March 2016 Albuquerque Minutes of the March 30, 2016 Meeting: at Sandia Presentation, NMED, Revisions to Consent

  14. FTCP Meetings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Meetings FTCP Meetings July 22, 2016 FTCP Conference Call Minutes - July 20, 2016 FTCP Conference Call Minutes recorded monthly during FTCP conference calls. Topics of discussion include updates from FTCP Chair, Functional Area Qualification Standards updates, FTCP Operational Goals status, and ongoing NTC activities. May 17, 2016 FTCP Face to Face Meeting - May 5, 2016 Meeting hosted by FTCP Chair and FTCP Deputy Chair with FTCP Agents and other FTCP personnel in attendance. Meetings consisted

  15. Fall 2007 ASA Meeting Disclaimer

    Energy Information Administration (EIA) (indexed site)

    7 Meeting of the American Statistical Association Committee on Energy Statistics and the Energy Information Administration In two adjacent files you will find unedited transcripts of EIA's fall 2007 meeting with the American Statistical Association Committee on Energy Statistics. Beginning with the fall 2003 meeting, EIA no longer edits these transcripts. Summaries of previous meetings can be found to the right of the Thursday and Friday transcripts. The public meeting took place October 18 and

  16. Spring 2006 ASA Meeting Disclaimer

    Energy Information Administration (EIA) (indexed site)

    6 Meeting of the American Statistical Association Committee on Energy Statistics and the Energy Information Administration In two adjacent files you may find unedited transcripts of EIA's spring 2006 meeting with the American Statistical Association Committee on Energy Statistics. Beginning with the fall 2003 meeting, EIA no longer edits these transcripts. Summaries of previous meetings may be found to the right of the Thursday and Friday transcripts. The public meeting took place April 6 and 7,

  17. Spring 2006 ASA Meeting Disclaimer

    Energy Information Administration (EIA) (indexed site)

    7 Meeting of the American Statistical Association Committee on Energy Statistics and the Energy Information Administration In two adjacent files you will find unedited transcripts of EIA's spring 2007 meeting with the American Statistical Association Committee on Energy Statistics. Beginning with the fall 2003 meeting, EIA no longer edits these transcripts. Summaries of previous meetings can be found to the right of the Thursday and Friday transcripts. The public meeting took place April 19 and

  18. Spring 2008 ASA Meeting Disclaimer

    Energy Information Administration (EIA) (indexed site)

    8 Meeting of the American Statistical Association Committee on Energy Statistics and the Energy Information Administration In two adjacent files you will find unedited transcripts of EIA's fall 2008 meeting with the American Statistical Association Committee on Energy Statistics. Beginning with the fall 2003 meeting, EIA no longer edits these transcripts. Summaries of previous meetings can be found to the right of the Thursday and Friday transcripts. The public meeting took place October 23 and

  19. Spring 2008 ASA Meeting Disclaimer

    Energy Information Administration (EIA) (indexed site)

    8 Meeting of the American Statistical Association Committee on Energy Statistics and the Energy Information Administration In two adjacent files you will find unedited transcripts of EIA's spring 2008 meeting with the American Statistical Association Committee on Energy Statistics. Beginning with the fall 2003 meeting, EIA no longer edits these transcripts. Summaries of previous meetings can be found to the right of the Thursday and Friday transcripts. The public meeting took place on April 9,

  20. Spring 2009 ASA Meeting Disclaimer

    Energy Information Administration (EIA) (indexed site)

    9 Meeting of the American Statistical Association Committee on Energy Statistics and the Energy Information Administration In two adjacent files you will find unedited transcripts of EIA's spring 2009 meeting with the American Statistical Association Committee on Energy Statistics. Beginning with the fall 2003 meeting, EIA no longer edits these transcripts. Summaries of previous meetings can be found to the right of the Thursday and Friday transcripts. The public meeting took place on April 2

  1. Quantum Hall effect in semiconductor systems with quantum dots and antidots

    SciTech Connect

    Beltukov, Ya. M.; Greshnov, A. A.

    2015-04-15

    The integer quantum Hall effect in systems of semiconductor quantum dots and antidots is studied theoretically as a factor of temperature. It is established that the conditions for carrier localization in quantum-dot systems favor the observation of the quantum Hall effect at higher temperatures than in quantum-well systems. The obtained numerical results show that the fundamental plateau corresponding to the transition between the ground and first excited Landau levels can be retained up to a temperature of T ∼ 50 K, which is an order of magnitude higher than in the case of quantum wells. Implementation of the quantum Hall effect at such temperatures requires quantum-dot systems with controllable characteristics, including the optimal size and concentration and moderate geometrical and composition fluctuations. In addition, ordered arrangement is desirable, hence quantum antidots are preferable.

  2. Spin Hall magnetoresistance in CoFe2O4/Pt films

    DOE PAGES [OSTI]

    Wu, Hao; Qintong, Zhang; Caihua, Wan; Ali, Syed Shahbaz; Yuan, Zhonghui; You, Lu; Wang, Junling; Choi, Yongseong; Han, Xiufeng

    2015-05-13

    Pulse laser deposition and magnetron sputtering techniques have been employed to prepare MgO(001)//CoFe2O4/Pt samples. Cross section transmission electron microscope results prove that the CoFe2O4 film epitaxially grew along (001) direction. X-ray magnetic circular dichroism results show that magnetic proximity effect in this sample is negligible. Magnetoresistance (MR) properties confirm that spin Hall MR (SMR) dominates in this system. Spin Hall effect-induced anomalous Hall voltage was also observed in this sample. Lastly, these results not only demonstrate the universality of SMR effect but also demonstrate the utility in spintronics of CoFe2O4 as a new type of magnetic insulator.

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

    SciTech Connect

    Liu, Baoli; Shi, Junren; Wang, Wenxin; Zhao, Hongming; Li, Dafang; Zhang, Shoucheng; 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.

  4. Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect.

    SciTech Connect

    Sklenar, Joseph; Zhang, Wei; Jungfleisch, Matthias B.; Jiang, Wanjun; Chang, Houchen; Pearson, John E.; Wu, Mingzhong; Ketterson, John B.; Hoffmann, Axel

    2015-11-06

    We demonstrate the generation and detection of spin-torque ferromagnetic resonance in Pt/Y3Fe5O12 (YIG) bilayers. A unique attribute of this system is that the spin Hall effect lies at the heart of both the generation and detection processes and no charge current is passing through the insulating magnetic layer. When the YIG undergoes resonance, a dc voltage is detected longitudinally along the Pt that can be described by two components. One is the mixing of the spin Hall magnetoresistance with the microwave current. The other results from spin pumping into the Pt being converted to a dc current through the inverse spin Hall effect. The voltage is measured with applied magnetic field directions that range in-plane to nearly perpendicular. We find that for magnetic fields that are mostly out-of-plane, an imaginary component of the spin mixing conductance is required to model our data.

  5. Ultra-sensitive Hall sensors based on graphene encapsulated in hexagonal boron nitride

    SciTech Connect

    Dauber, Jan; Stampfer, Christoph; Sagade, Abhay A.; Neumaier, Daniel; Oellers, Martin; Watanabe, Kenji; Taniguchi, Takashi

    2015-05-11

    The encapsulation of graphene in hexagonal boron nitride provides graphene on substrate with excellent material quality. Here, we present the fabrication and characterization of Hall sensor elements based on graphene boron nitride heterostructures, where we gain from high mobility and low charge carrier density at room temperature. We show a detailed device characterization including Hall effect measurements under vacuum and ambient conditions. We achieve a current- and voltage-related sensitivity of up to 5700 V/AT and 3 V/VT, respectively, outpacing state-of-the-art silicon and III/V Hall sensor devices. Finally, we extract a magnetic resolution limited by low frequency electric noise of less than 50 nT/√(Hz) making our graphene sensors highly interesting for industrial applications.

  6. Engineering the quantum anomalous Hall effect in graphene with uniaxial strains

    SciTech Connect

    Diniz, G. S. Guassi, M. R.; Qu, F.

    2013-12-28

    We theoretically investigate the manipulation of the quantum anomalous Hall effect (QAHE) in graphene by means of the uniaxial strain. The values of Chern number and Hall conductance demonstrate that the strained graphene in presence of Rashba spin-orbit coupling and exchange field, for vanishing intrinsic spin-orbit coupling, possesses non-trivial topological phase, which is robust against the direction and modulus of the strain. Besides, we also find that the interplay between Rashba and intrinsic spin-orbit couplings results in a topological phase transition in the strained graphene. Remarkably, as the strain strength is increased beyond approximately 7%, the critical parameters of the exchange field for triggering the quantum anomalous Hall phase transition show distinct behaviors—decrease (increase) for strains along zigzag (armchair) direction. Our findings open up a new platform for manipulation of the QAHE by an experimentally accessible strain deformation of the graphene structure, with promising application on novel quantum electronic devices with high efficiency.

  7. Fractional quantum Hall effect at Landau level filling ν = 4/11

    SciTech Connect

    Pan, W.; Baldwin, K. W.; West, K. W.; Pfeiffer, L. N.; Tsui, D. C.

    2015-01-09

    In this study, we report low temperature electronic transport results on the fractional quantum Hall effect of composite fermions at Landau level filling ν = 4/11 in a very high mobility and low density sample. Measurements were carried out at temperatures down to 15mK, where an activated magnetoresistance Rxx and a quantized Hall resistance Rxy, within 1% of the expected value of h/(4/11)e2, were observed. The temperature dependence of the Rxx minimum at 4/11 yields an activation energy gap of ~ 7 mK. Developing Hall plateaus were also observed at the neighboring states at ν = 3/8 and 5/13.

  8. Fractional quantum Hall effect at Landau level filling ν = 4/11

    DOE PAGES [OSTI]

    Pan, W.; Baldwin, K. W.; West, K. W.; Pfeiffer, L. N.; Tsui, D. C.

    2015-01-09

    In this study, we report low temperature electronic transport results on the fractional quantum Hall effect of composite fermions at Landau level filling ν = 4/11 in a very high mobility and low density sample. Measurements were carried out at temperatures down to 15mK, where an activated magnetoresistance Rxx and a quantized Hall resistance Rxy, within 1% of the expected value of h/(4/11)e2, were observed. The temperature dependence of the Rxx minimum at 4/11 yields an activation energy gap of ~ 7 mK. Developing Hall plateaus were also observed at the neighboring states at ν = 3/8 and 5/13.

  9. ARM - 1992 ARM Science Team Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2 ARM Science Team Meeting 1992 Meeting 1992 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 1992 ARM Science Team Meeting October 26 - 30 | Denver, Colorado | Denver Skyline The second ARM Science Team Meeting was held in Denver, Colorado

  10. ARM - 1994 ARM Science Team Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    4 ARM Science Team Meeting 1994 Meeting 1994 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 1994 ARM Science Team Meeting February 28 - March 3 | Charleston, South Carolina The fourth ARM Science Team Meeting was held in Charleston, South Carolina. The Science

  11. Magnetic shielding of Hall thrusters at high discharge voltages

    SciTech Connect

    Mikellides, Ioannis G. Hofer, Richard R.; Katz, Ira; Goebel, Dan M.

    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.

  12. Standardizing Naming Conventions in Radiation Oncology

    SciTech Connect

    Santanam, Lakshmi; Hurkmans, Coen; Mutic, Sasa; Vliet-Vroegindeweij, Corine van; Brame, Scott; Straube, William; Galvin, James; Tripuraneni, Prabhakar; Michalski, Jeff; Bosch, Walter

    2012-07-15

    Purpose: The aim of this study was to report on the development of a standardized target and organ-at-risk naming convention for use in radiation therapy and to present the nomenclature for structure naming for interinstitutional data sharing, clinical trial repositories, integrated multi-institutional collaborative databases, and quality control centers. This taxonomy should also enable improved plan benchmarking between clinical institutions and vendors and facilitation of automated treatment plan quality control. Materials and Methods: The Advanced Technology Consortium, Washington University in St. Louis, Radiation Therapy Oncology Group, Dutch Radiation Oncology Society, and the Clinical Trials RT QA Harmonization Group collaborated in creating this new naming convention. The International Commission on Radiation Units and Measurements guidelines have been used to create standardized nomenclature for target volumes (clinical target volume, internal target volume, planning target volume, etc.), organs at risk, and planning organ-at-risk volumes in radiation therapy. The nomenclature also includes rules for specifying laterality and margins for various structures. The naming rules distinguish tumor and nodal planning target volumes, with correspondence to their respective tumor/nodal clinical target volumes. It also provides rules for basic structure naming, as well as an option for more detailed names. Names of nonstandard structures used mainly for plan optimization or evaluation (rings, islands of dose avoidance, islands where additional dose is needed [dose painting]) are identified separately. Results: In addition to its use in 16 ongoing Radiation Therapy Oncology Group advanced technology clinical trial protocols and several new European Organization for Research and Treatment of Cancer protocols, a pilot version of this naming convention has been evaluated using patient data sets with varying treatment sites. All structures in these data sets were

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

    SciTech Connect

    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.

  14. UDAC Meeting - December 2008 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    December 2008 UDAC Meeting - December 2008 Federal Register notice (50.83 KB) Meeting Minutes (382.88 KB) More Documents & Publications UDAC Meeting - March 2012 UDAC Meeting - October 22, 2009 UDAC Meeting - October 23, 2008

  15. UDAC Meeting - March 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2012 UDAC Meeting UDAC - Minutes for March 8, 2012 Meeting (332.62 KB) More Documents & Publications UDAC Meeting - October 22, 2009 UDAC Meeting - April 2011 UDAC Meeting - October 23, 2008

  16. UDAC Meeting - March 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1, 2012 UDAC Meeting Federal Register Notice for March 1, 2012 UDAC Meeting (147.05 KB) More Documents & Publications Federal Register Notice for February 2012 Meeting UDAC Meeting - September 2012 UDAC Meeting - March 2012

  17. URTAC Meeting - September 2012 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Federal Register Notice for September 25, 2012 URTAC Meeting URTAC - Federal Register Notice for September 25, 2012 Meeting (197.41 KB) More Documents & Publications UDAC Meeting - September 2012 URTAC Meeting - October 2012 URTAC Meeting - September

  18. Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi Honeycomb

    Office of Scientific and Technical Information (OSTI)

    01 March 2016 Accepted: 03 June 2016 Published: lOAugust 2016 www.nature.com/scientificreports NTIFIC REPpRTS Prediction of Quantum Anomalous Hall Insulator in half-fluorinated GaBi Honeycomb Sung-Ping Chen1'*, Zhi-Quan Huang1'*, Christian P. Crisostomo1, Chia-Hsiu Hsu1, Feng-Chuan Chuang1, Hsin Lin2,3 & Arun Bansil4 Using first-principles electronic structure calculations, we predict half-fluorinated GaBi honeycomb under tensile strain to harbor a quantum anomalous Hall (QAH) insulator

  19. Hysteretic magnetoresistance and unconventional anomalous Hall effect in the frustrated magnet TmB4

    DOE PAGES [OSTI]

    Sunku, Sai Swaroop; Kong, Tai; Ito, Toshimitsu; Canfield, Paul C.; Shastry, B. Sriram; Sengupta, Pinaki; Panagopoulos, Christos

    2016-05-11

    We study TmB4, a frustrated magnet on the Archimedean Shastry-Sutherland lattice, through magnetization and transport experiments. The lack of anisotropy in resistivity shows that TmB4 is an electronically three-dimensional system. The magnetoresistance (MR) is hysteretic at low temperature even though a corresponding hysteresis in magnetization is absent. The Hall resistivity shows unconventional anomalous Hall effect (AHE) and is linear above saturation despite a large MR. In conclusion, we propose that complex structures at magnetic domain walls may be responsible for the hysteretic MR and may also lead to the AHE.

  20. Spin Hall effect-controlled magnetization dynamics in NiMnSb

    SciTech Connect

    Dürrenfeld, P. Ranjbar, M.; Gerhard, F.; Gould, C.; Molenkamp, L. W.; Åkerman, J.

    2015-05-07

    We investigate the influence of a spin current generated from a platinum layer on the ferromagnetic resonance (FMR) properties of an adjacent ferromagnetic layer composed of the halfmetallic half-Heusler material NiMnSb. Spin Hall nano-oscillator devices are fabricated, and the technique of spin torque FMR is used to locally study the magnetic properties as in-plane anisotropies and resonance fields. A change in the FMR linewidth, in accordance with the additional spin torque produced by the spin Hall effect, is present for an applied dc current. For sufficiently large currents, this should yield auto-oscillations, which however are not achievable in the present device geometry.