Sample records for upper plate bas

  1. Note: Spatial resolution of Fuji BAS-TR and BAS-SR imaging plates

    SciTech Connect (OSTI)

    Fiksel, G.; Marshall, F. J.; Mileham, C.; Stoeckl, C. [Laboratory for Laser Energetics, University of Rochester, 250 East River Rd., Rochester, New York 14623-1299 (United States)

    2012-08-15T23:59:59.000Z

    The spatial resolution of two types of imaging plates, Fuji BAS-TR and Fuji BAS-SR, has been measured using a knife-edge x-ray source of 8-keV Cu K{sub {alpha}} radiation. The values for the spatial resolution, defined as the distance between 10% and 90% levels of the edge spread function, are 94 {mu}m and 109 {mu}m, respectively. The resolution values are important for quantitative analysis of x-ray and particle imaging and spectroscopic diagnostics.

  2. Upper mantle structure beneath the Caribbean-South American plate boundary from surface wave tomography

    E-Print Network [OSTI]

    Niu, Fenglin

    Upper mantle structure beneath the Caribbean-South American plate boundary from surface wave velocity structure of the crust and upper mantle of the Caribbean-South American boundary region American continental lithosphere, the Venezuelan archipelago, and the Caribbean oceanic lithosphere

  3. A normal-faulting seismic sequence triggered by the 2011 off the Pacific coast of Tohoku Earthquake: Wholesale stress regime changes in the upper plate

    E-Print Network [OSTI]

    Kato, Aitaro

    : Wholesale stress regime changes in the upper plate Aitaro Kato*1 , Shin'ichi Sakai1 , and Kazushige Obara1 1

  4. BAS C. VAN FRAASSEN CLARENDON PRESS -OXFORD

    E-Print Network [OSTI]

    Fitelson, Branden

    THE SCIENTIFIC IMAGE BAS C. VAN FRAASSEN CLARENDON PRESS - OXFORD #12;18 ARGUMENTS CONCERNING adequate, ones whose models fit the observable phenomena. while recognizing that what counts

  5. Seismogenic zone input: the upper plate contribution in Costa Rica. Structural analysis of the Osa Mlange.

    E-Print Network [OSTI]

    Royal Holloway, University of London

    transformations, or fluid pressure changes is leading to the locking and onset of earthquakes with depth along drilling experiment designed to reach the seismogenic portion of the plate boundary. Recent drilling has

  6. Operational Effectiveness in Use fo BAS

    E-Print Network [OSTI]

    Bobker, M.; Joseph, M.; Ascazubi, M.; Brown, T.; Thorpe, K.; Essman, J.

    2013-01-01T23:59:59.000Z

    , making it an under-utilized resource. We do not have an established industry baseline of how operators use BAS nor what best practices might be. An ASHRAE research project is surveying operators to investigate desirable ?dashboard? interfaces...-to-machine feedback is most advanced in the area of Demand Response, where initiation of a special mode activates prioritized load-shedding to meet a pre- determined kw level. The major controls manufacturers have prototypes for machine-to- machine oversight...

  7. Crack-arrest behavior in SEN wide plates of low-upper-shelf base metal tested under nonisothermal conditions: WP-2 series

    SciTech Connect (OSTI)

    Naus, D.J.; Keeney-Walker, J.; Bass, B.R.; Robinson, G.C. Jr.; Iskander, S.K.; Alexander, D.J. [Oak Ridge National Lab., TN (United States); Fields, R.J.; deWit, R.; Low, S.R. [National Inst. of Standards and Technology, Gaithersburg, MD (United States); Schwartz, C.W. [Maryland Univ., College Park, MD (United States). Dept. of Mechanical Engineering; Johansson, I.B. [Royal Inst. of Tech., Stockholm (Sweden)

    1990-08-01T23:59:59.000Z

    The Heavy-Section Steel Technology (HSST) Program at the Oak Ridge National Laboratory under the sponsorship of the Nuclear Regulatory Commission is conducting analytical and experimental studies aimed at understanding the circumstances that would initiate the growth of an existing crack in a reactor pressure vessel (RPV) and the conditions leading to arrest of a propagating crack. Objectives of these studies are to determine (1) if the material will exhibit crack-arrest behavior when the driving force on a crack exceeds the ASME limit, (2) the relationship between K{sub Ia} and temperature, and (3) the interaction of fracture modes (arrest, stable crack growth, unstable crack growth, and tensile instability) when arrest occurs at high temperatures. In meeting these objectives, crack-arrest data are being developed over an expanded temperature range through tests involving large thermally shocked cylinders, pressurized thermally shocked vessels, and wide-plate specimens. The wide-plate specimens provide the opportunity for a significant number of data points to be obtained at relatively affordable costs. These tests are designed to provide fracture-toughness measurements approaching or above the onset of the Charpy upper-shelf regime in a rising toughness region and with an increasing driving force. This document discusses test methodology and results. 23 refs., 92 figs., 25 tabs.

  8. Centerfor Genome Bas Max Planck Institute for Molecular Genetics

    E-Print Network [OSTI]

    Spang, Rainer

    Be rlin Centerfor Genome Bas ed Bioinform a tics Max Planck Institute for Molecular Genetics109/209 and 01GR0455 of the German Federal Ministry of Education and Research. In addition X

  9. Centerfor Genome Bas Max Planck Institute for Molecular Genetics

    E-Print Network [OSTI]

    Spang, Rainer

    Be rlin Centerfor Genome Bas ed Bioinform a tics Max Planck Institute for Molecular Genetics of Education. 2 #12;Chapter 2 Implemented functions 2.1 twilight.pval: Testing effect sizes twilight

  10. Dayao County Yupao River BasDayao County Yupao River Basin Hydro...

    Open Energy Info (EERE)

    Dayao County Yupao River BasDayao County Yupao River Basin Hydro electricity Development Co Ltd in Jump to: navigation, search Name: Dayao County Yupao River BasDayao County Yupao...

  11. A Logic of Emotions for Intelligent Agents Bas R. Steunebrink

    E-Print Network [OSTI]

    Dastani, Mehdi

    A Logic of Emotions for Intelligent Agents Bas R. Steunebrink Department of ICS Utrecht University Utrecht, The Netherlands bass@cs.uu.nl Mehdi Dastani Department of ICS Utrecht University Utrecht, The Netherlands mehdi@cs.uu.nl John-Jules Ch. Meyer Department of ICS Utrecht University Utrecht, The Netherlands

  12. Chapter 19: HVAC Controls (DDC/EMS/BAS) Evaluation Protocol

    SciTech Connect (OSTI)

    Romberger, J.

    2014-11-01T23:59:59.000Z

    The HVAC Controls Evaluation Protocol is designed to address evaluation issues for direct digital controls/energy management systems/building automation systems (DDC/EMS/BAS) that are installed to control heating, ventilation, and air-conditioning (HVAC) equipment in commercial and institutional buildings. (This chapter refers to the DDC/EMS/BAS measure as HVAC controls.) This protocol may also be applicable to industrial facilities such as clean rooms and labs, which have either significant HVAC equipment or spaces requiring special environmental conditions. This protocol addresses only HVAC-related equipment and the energy savings estimation methods associated with installing such control systems as an energy efficiency measure. The affected equipment includes: Air-side equipment (air handlers, direct expansion systems, furnaces, other heating- and cooling-related devices, terminal air distribution equipment, and fans); Central plant equipment (chillers, cooling towers, boilers, and pumps). These controls may also operate or affect other end uses, such as lighting, domestic hot water, irrigation systems, and life safety systems such as fire alarms and other security systems. Considerable nonenergy benefits, such as maintenance scheduling, system component troubleshooting, equipment failure alarms, and increased equipment lifetime, may also be associated with these systems. When connected to building utility meters, these systems can also be valuable demand-limiting control tools. However, this protocol does not evaluate any of these additional capabilities and benefits.

  13. Nuclear reactor alignment plate configuration

    DOE Patents [OSTI]

    Altman, David A; Forsyth, David R; Smith, Richard E; Singleton, Norman R

    2014-01-28T23:59:59.000Z

    An alignment plate that is attached to a core barrel of a pressurized water reactor and fits within slots within a top plate of a lower core shroud and upper core plate to maintain lateral alignment of the reactor internals. The alignment plate is connected to the core barrel through two vertically-spaced dowel pins that extend from the outside surface of the core barrel through a reinforcement pad and into corresponding holes in the alignment plate. Additionally, threaded fasteners are inserted around the perimeter of the reinforcement pad and into the alignment plate to further secure the alignment plate to the core barrel. A fillet weld also is deposited around the perimeter of the reinforcement pad. To accomodate thermal growth between the alignment plate and the core barrel, a gap is left above, below and at both sides of one of the dowel pins in the alignment plate holes through with the dowel pins pass.

  14. Horizontal Plate Plate

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School football Highdefault Sign InData inmaxHorizontal Plate Plate

  15. Endovascular Embolization of Bronchial Artery Originating from the Upper Portion of Aortic Arch in Patients with Massive Hemoptysis

    SciTech Connect (OSTI)

    Jiang, Sen, E-mail: jasfly77@vip.163.com; Sun, Xi-Wen, E-mail: xwsun@citiz.net; Yu, Dong, E-mail: yudong_mail@126.com; Jie, Bing, E-mail: jbshh@163.com [Tongji University School of Medicine, Department of Radiology, Shanghai Pulmonary Hospital (China)

    2013-05-15T23:59:59.000Z

    PurposeOur experience with endovascular embolization (EVE) of the bronchial artery (BA) originating from the upper portion of the aortic arch (AA) in six patients is described.MethodsAltogether, 818 patients with hemoptysis underwent multidetector row computed tomography angiography (MDCTA) before EVE or AA angiography during EVE. Aberrant BAs originating from the upper portion of the AA were the source of massive hemoptysis in six patients (0.73%). MDCT angiograms and/or Digital subtraction angiograms were retrospectively reviewed. Selective catheterization and embolization were performed.ResultsThe ostia of the BAs were located on the superior surface of the AA between the brachiocephalic trunk and left common carotid artery in three patients, the junction of the aorta and medial surface of the left subclavian artery in two, and the posterior wall of the upper portion of the AA in one. The six BAs comprised two common trunks, three single right sides, and one single left side. The targeted vessels were successfully catheterized and embolized by a coaxial microcatheter system using polyvinyl alcohol particles. Other pathologic BAs and nonbronchial systemic arteries also were embolized. Bleeding was immediately controlled in all patients with no recurrence of hemoptysis. No procedure-related complications occurred.ConclusionsApplication of EVE of anomalous origin of BAs in patients with hemoptysis is important, as demonstrated in the six reported patients. MDCTA before EVE or AA angiography during EVE is critical to avoid missing a rare aberrant BA originating from the upper portion of the AA.

  16. Aerotek B 3 B,A&S AFLAC D 12 All Majors.

    E-Print Network [OSTI]

    New Mexico, University of

    Aerotek B 3 B,A&S AFLAC D 12 All Majors. Air Force Nuclear Weapons Center - Kirtland AFB B 4 All/A N/A United States Department of Agriculture - USDA Forest Service B 7 All Majors. United States

  17. Building Application Stack (BAS) Andrew Krioukov, Gabe Fierro, Nikita Kitaev, David Culler

    E-Print Network [OSTI]

    California at Berkeley, University of

    Building Application Stack (BAS) Andrew Krioukov, Gabe Fierro, Nikita Kitaev, David Culler Computer.fierro@berkeley.edu, kitaev@berkeley.edu, culler@cs.berkeley.edu Abstract Many commercial buildings have digital controls, detecting faults, improving comfort, etc. However, buildings are custom designed, lead- ing to differences

  18. Electroless copper plating

    DOE Patents [OSTI]

    McHenry, M.R.

    1998-12-15T23:59:59.000Z

    An optimized electroless copper plating technique is described suitable for plating electroless copper upon ceramics. 12 figs.

  19. License Plate 1 License Plate 2

    E-Print Network [OSTI]

    Wagner, Diane

    License Plate 1 License Plate 2 License Plate 3 License Plate 4 Single Vehicle $254 Multi Vehicle $264 ( up to 4 vehicles) Annual Decal Valid: 09/01/12 - 08/31/13 Fall /Spring Decal (Pick date range , then Single or Multi Vehicle) Multi Vehicles $200 (up to 4 vehicles) Select date range Valid 9/1/12 - 5

  20. Microsoft PowerPoint - DE-EE0006351 UC Berkeley OpenBAS Public.pptx

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment3311, 3312),Microgrid WorkshopApprovedOpenBAS-Software-Defined

  1. Controlling the Colour of Metals: Intaglio and Bas-Relief Metamaterials

    E-Print Network [OSTI]

    Zhang, Jianfa; Papasimakis, Nikitas; Chen, Yifang; MacDonald, Kevin F; Zheludev, Nikolay I

    2010-01-01T23:59:59.000Z

    The fabrication of indented ('intaglio') or raised ('bas-relief') sub-wavelength metamaterial patterns on a metal surface provides a mechanism for changing and controlling the colour of the metal without employing any form of chemical surface modification, thin-film coating or diffraction effects. We show that a broad range of colours can be achieved by varying the structural parameters of metamaterial designs to tune absorption resonances. This novel approach to the 'structural colouring' of pure metals offers great versatility and scalability for both aesthetic (e.g. jewellery design) and functional (e.g. sensors, optical modulators) applications. We focus here on visible colour but the concept can equally be applied to the engineering of metallic spectral response in other electromagnetic domains.

  2. Earth's Decelerating Tectonic Plates

    SciTech Connect (OSTI)

    Forte, A M; Moucha, R; Rowley, D B; Quere, S; Mitrovica, J X; Simmons, N A; Grand, S P

    2008-08-22T23:59:59.000Z

    Space geodetic and oceanic magnetic anomaly constraints on tectonic plate motions are employed to determine a new global map of present-day rates of change of plate velocities. This map shows that Earth's largest plate, the Pacific, is presently decelerating along with several other plates in the Pacific and Indo-Atlantic hemispheres. These plate decelerations contribute to an overall, globally averaged slowdown in tectonic plate speeds. The map of plate decelerations provides new and unique constraints on the dynamics of time-dependent convection in Earth's mantle. We employ a recently developed convection model constrained by seismic, geodynamic and mineral physics data to show that time-dependent changes in mantle buoyancy forces can explain the deceleration of the major plates in the Pacific and Indo-Atlantic hemispheres.

  3. Upper internals arrangement for a pressurized water reactor

    DOE Patents [OSTI]

    Singleton, Norman R; Altman, David A; Yu, Ching; Rex, James A; Forsyth, David R

    2013-07-09T23:59:59.000Z

    In a pressurized water reactor with all of the in-core instrumentation gaining access to the core through the reactor head, each fuel assembly in which the instrumentation is introduced is aligned with an upper internals instrumentation guide-way. In the elevations above the upper internals upper support assembly, the instrumentation is protected and aligned by upper mounted instrumentation columns that are part of the instrumentation guide-way and extend from the upper support assembly towards the reactor head in hue with a corresponding head penetration. The upper mounted instrumentation columns are supported laterally at one end by an upper guide tube and at the other end by the upper support plate.

  4. Nitrided Metallic Bipolar Plates

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

    nitrided surface treatment. In this approach, an electrically-conductive and corrosion-resistant chromium-nitride surface layer is formed on the bipolar plate component by...

  5. Surface preparation and plating

    SciTech Connect (OSTI)

    Dini, J.W.; Waldrop, F.B.; Reno, R.W.

    1982-10-06T23:59:59.000Z

    This chapter covers electroplating and electroless nickel plating since coatings of this type play an important role in diamond turning technology. Items to be discussed include preparation of substrates prior to coating, plating defects such as pits and nodules and their influence on optics, the influence of stress in coatings, plating details for copper, gold, silver, and electroless nickel, and the importance of additives and their influence on grain size and structure of deposits. Some comments are made on future challenges that could be presented to the plating community to further improve the quality of coatings applied for diamond turning purposes. 60 references, 8 figures, 9 tables.

  6. Absolute calibration of image plates for electrons at energy between 100 keV and 4 MeV

    SciTech Connect (OSTI)

    Chen Hui; Back, Norman L.; Eder, David C.; MacPhee, Andrew G.; Ping Yuan; Song, Peter M.; Throop, Alan [Lawrence Livermore National Laboratory, Livermore, California 94550-9234 (United States); Bartal, Teresa; Beg, F. N. [University of California, San Diego, La Jolla, California 92093 (United States); Link, Anthony J.; Van Woerkom, Linn [Ohio State University, Columbus, Ohio 43210 (United States)

    2008-03-15T23:59:59.000Z

    We measured the absolute response of image plate (Fuji BAS SR2040) for electrons at energies between 100 keV and 4 MeV using an electron spectrometer. The electron source was produced from a short pulse laser irradiated on solid density targets. This paper presents the calibration results of image plate photon stimulated luminescence per electron at this energy range. The Monte Carlo radiation transport code MCNPX results are also presented for three representative incident angles onto the image plates and corresponding electron energy depositions at these angles. These provide a complete set of tools that allows extraction of our absolute calibration to other spectrometer setting at this electron energy range.

  7. Universit europenne d't 2005 "Val de Loire -patrimoine mondial" Tours-Angers-Nantes 26 au 30 septembre 2005 Le patrimoine culturel et industriel du Bas-Uruguay (Argentine,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    septembre 2005 1 Le patrimoine culturel et industriel du Bas-Uruguay (Argentine, Uruguay) : typologie (Uruguay) Courriel : rboretto@adinet.com.uy Zone fluviale frontalière entre l'Argentine et l'Uruguay (v. cartouche fig. 1), le Bas- Uruguay (environ 350 km du nord au sud) est délimité à l'amont par le vaste lac

  8. Geochemical and rheological constraints on the dynamics of the oceanic upper mantle

    E-Print Network [OSTI]

    Warren, Jessica Mendelsohn

    2007-01-01T23:59:59.000Z

    I provide constraints on mantle convection through observations of the rheology and composition of the oceanic upper mantle. Convection cannot be directly observed, yet is a fundamental part of the plate tectonic cycle. ...

  9. Aperture-based antihydrogen gravity experiment: Parallel plate geometry

    SciTech Connect (OSTI)

    Rocha, J. R.; Hedlof, R. M.; Ordonez, C. A. [Department of Physics, University of North Texas, Denton, Texas 76203 (United States)] [Department of Physics, University of North Texas, Denton, Texas 76203 (United States)

    2013-10-15T23:59:59.000Z

    An analytical model and a Monte Carlo simulation are presented of an experiment that could be used to determine the direction of the acceleration of antihydrogen due to gravity. The experiment would rely on methods developed by existing antihydrogen research collaborations. The configuration consists of two circular, parallel plates that have an axis of symmetry directed away from the center of the earth. The plates are separated by a small vertical distance, and include one or more pairs of circular barriers that protrude from the upper and lower plates, thereby forming an aperture between the plates. Antihydrogen annihilations that occur just beyond each barrier, within a shadow region, are asymmetric on the upper plate relative to the lower plate. The probability for such annihilations is determined for a point, line and spheroidal source of antihydrogen. The production of 100,000 antiatoms is predicted to be necessary for the aperture-based experiment to indicate the direction of free fall acceleration of antimatter, provided that antihydrogen is produced within a sufficiently small antiproton plasma at a temperature of 4 K.

  10. Nitrided Metallic Bipolar Plates

    SciTech Connect (OSTI)

    Brady, Michael P [ORNL; Tortorelli, Peter F [ORNL; Pihl, Josh A [ORNL; Toops, Todd J [ORNL; More, Karren Leslie [ORNL; Meyer III, Harry M [ORNL; Vitek, John Michael [ORNL; Wang, Heli [National Renewable Energy Laboratory (NREL); Turner, John [National Renewable Energy Laboratory (NREL); Wilson, Mahlon [Los Alamos National Laboratory (LANL); Garzon, Fernando [Los Alamos National Laboratory (LANL); Rockward, Tommy [Los Alamos National Laboratory (LANL); Connors, Dan [GenCell Corp; Rakowski, Jim [Allegheny Ludlum; Gervasio, Don [Arizona State University

    2008-01-01T23:59:59.000Z

    The objectives are: (1) Develop and optimize stainless steel alloys amenable to formation of a protective Cr-nitride surface by gas nitridation, at a sufficiently low cost to meet DOE targets and with sufficient ductility to permit manufacture by stamping. (2) Demonstrate capability of nitridation to yield high-quality stainless steel bipolar plates from thin stamped alloy foils (no significant stamped foil warping or embrittlement). (3) Demonstrate single-cell fuel cell performance of stamped and nitrided alloy foils equivalent to that of machined graphite plates of the same flow-field design ({approx}750-1,000 h, cyclic conditions, to include quantification of metal ion contamination of the membrane electrode assembly [MEA] and contact resistance increase attributable to the bipolar plates). (4) Demonstrate potential for adoption in automotive fuel cell stacks. Thin stamped metallic bipolar plates offer the potential for (1) significantly lower cost than currently-used machined graphite bipolar plates, (2) reduced weight/volume, and (3) better performance and amenability to high volume manufacture than developmental polymer/carbon fiber and graphite composite bipolar plates. However, most metals exhibit inadequate corrosion resistance in proton exchange membrane fuel cell (PEMFC) environments. This behavior leads to high electrical resistance due to the formation of surface oxides and/or contamination of the MEA by metallic ions, both of which can significantly degrade fuel cell performance. Metal nitrides offer electrical conductivities up to an order of magnitude greater than that of graphite and are highly corrosion resistant. Unfortunately, most conventional coating methods (for metal nitrides) are too expensive for PEMFC stack commercialization or tend to leave pinhole defects, which result in accelerated local corrosion and unacceptable performance.

  11. Plating under reduced pressure

    SciTech Connect (OSTI)

    Dini, J.W.; Beat, T.G.; Cowden, W.C. (Lawrence Livermore National Lab., CA (United States)); Ryan, L.E.; Hewitt, W.B. (TRW, Inc., Redondo Beach, CA (United States))

    1992-06-01T23:59:59.000Z

    Plating under reduced pressure was evaluated for both electroless nickel and electrodeposited copper systems. The objective was to reduce pitting of these coatings thereby further enhancing their usage for diamond turning applications. Cursory experiments with electroless nickel showed reduced porosity when deposition was done at around 500 torr. Detailed experiments with electrodeposited copper at around 100 torr provided similar results. Scanning tunneling microscopy was effectively used to show the improvement in the copper deposits plated under reduced pressure. Benefits included reduced surface roughness and finer and denser grain structure.

  12. INL HIP Plate Fabrication

    SciTech Connect (OSTI)

    B. H. Park; C. R. Clark; J. F. Jue

    2010-02-01T23:59:59.000Z

    This document outlines the process used to bond monolithic fuel plates by Hot Isostatic Pressing (HIP). This method was developed at Idaho National Laboratory (INL) for the Reduced Enrichment for Research and Test Reactors (RERTR) program. These foils have been used in a number of irradiation experiments in support of the United States Global Threat Reduction Initiative (GTRI) program.

  13. Microchannel plate streak camera

    DOE Patents [OSTI]

    Wang, C.L.

    1984-09-28T23:59:59.000Z

    An improved streak camera in which a microchannel plate electron multiplier is used in place of or in combination with the photocathode used in prior streak cameras. The improved streak camera is far more sensitive to photons (uv to gamma-rays) than the conventional x-ray streak camera which uses a photocathode. The improved streak camera offers gamma-ray detection with high temporal resolution. It also offers low-energy x-ray detection without attenuation inside the cathode. Using the microchannel plate in the improved camera has resulted in a time resolution of about 150 ps, and has provided a sensitivity sufficient for 1000 keV x-rays.

  14. Microchannel plate streak camera

    DOE Patents [OSTI]

    Wang, C.L.

    1989-03-21T23:59:59.000Z

    An improved streak camera in which a microchannel plate electron multiplier is used in place of or in combination with the photocathode used in prior streak cameras is disclosed. The improved streak camera is far more sensitive to photons (UV to gamma-rays) than the conventional x-ray streak camera which uses a photocathode. The improved streak camera offers gamma-ray detection with high temporal resolution. It also offers low-energy x-ray detection without attenuation inside the cathode. Using the microchannel plate in the improved camera has resulted in a time resolution of about 150 ps, and has provided a sensitivity sufficient for 1,000 KeV x-rays. 3 figs.

  15. Upper Los Alamos Canyon Cleanup

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

    Upper Los Alamos Canyon Cleanup The Upper Los Alamos Canyon Project involves cleaning up hazardous materials left over from some of the Laboratory's earliest activities. Contact...

  16. Fuel cell end plate structure

    DOE Patents [OSTI]

    Guthrie, Robin J. (East Hartford, CT); Katz, Murray (Newington, CT); Schroll, Craig R. (Glastonbury, CT)

    1991-04-23T23:59:59.000Z

    The end plates (16) of a fuel cell stack (12) are formed of a thin membrane. Pressure plates (20) exert compressive load through insulation layers (22, 26) to the membrane. Electrical contact between the end plates (16) and electrodes (50, 58) is maintained without deleterious making and breaking of electrical contacts during thermal transients. The thin end plate (16) under compressive load will not distort with a temperature difference across its thickness. Pressure plate (20) experiences a low thermal transient because it is insulated from the cell. The impact on the end plate of any slight deflection created in the pressure plate by temperature difference is minimized by the resilient pressure pad, in the form of insulation, therebetween.

  17. Hot Plate Station

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School football Highdefault Sign InData inmaxHorizontalHot Plate

  18. Channel plate for DNA sequencing

    DOE Patents [OSTI]

    Douthart, R.J.; Crowell, S.L.

    1998-01-13T23:59:59.000Z

    This invention is a channel plate that facilitates data compaction in DNA sequencing. The channel plate has a length, a width and a thickness, and further has a plurality of channels that are parallel. Each channel has a depth partially through the thickness of the channel plate. Additionally an interface edge permits electrical communication across an interface through a buffer to a deposition membrane surface. 15 figs.

  19. Laser-driven flyer plate

    DOE Patents [OSTI]

    Paisley, Dennis L. (Santa Fe, NM)

    1991-01-01T23:59:59.000Z

    Apparatus for producing high velocity flyer plates involving placing a layer of dielectric material between a first metal foil and a second metal foil. With laser irradiation through an optical substrate, the first metal foil forms a plasma in the area of the irradiation, between the substrate and the solid portion of the first metal foil. When the pressure between the substrate and the foil reaches the stress limit of the dielectric, the dielectric will break away and launch the flyer plate out of the second metal foil. The mass of the flyer plate is controlled, as no portion of the flyer plate is transformed into a plasma.

  20. Carbon-assisted flyer plates

    DOE Patents [OSTI]

    Stahl, David B. (Los Alamos, NM); Paisley, Dennis L. (Santa Fe, NM)

    1994-01-01T23:59:59.000Z

    A laser driven flyer plate utilizing an optical fiber connected to a laser. The end of the optical fiber has a layer of carbon and a metal layer deposited onto it. The carbon layer provides the laser induced plasma which is superior to the plasma produced from most metals. The carbon layer plasma is capable of providing a flatter flyer plate, converting more of the laser energy to driving plasma, promoting a higher flyer plate acceleration, and providing a more uniform pulse behind the plate. In another embodiment, the laser is in optical communication with a substrate onto which a layer of carbon and a layer of metal have been deposited.

  1. Results of irradiated cladding tests and clad plate experiments

    SciTech Connect (OSTI)

    Haggag, F.M.; Iskander, S.K.

    1988-01-01T23:59:59.000Z

    Two aspects critical to the fracture behavior of three-wire stainless steel cladding were investigated by the Heavy-Section Steel Technology (HSST) Program: (1) radiation effects on cladding strength and toughness, and (2) the response of mechanically loaded, flawed structures in the presence of cladding (clad plate experiments). Postirradiation testing results show that, in the test temperature range from /minus/125 to 288/degree/C, the yield strength increased, and ductility insignificantly increased, while there was almost no change in ultimate tensile strength. All cladding exhibited ductile-to-brittle transition behavior during Charpy impact testing. Radiation damage decreased the Charpy upper-shelf energy by 15 to 20% and resulted in up to 28/degree/C shifts of the Charpy impact transition temperature. Results of irradiated 12.5-mm-thick compact specimens (0.5TCS) show consistent decreases in the ductile fracture toughness, J/sub Ic/, and the tearing modulus. Results from clad plate tests have shown that (1) a tough surface layer composed of cladding and/or heat-affected zone has arrested running flaws under conditions where unclad plates have ruptured, and (2) the residual load-bearing capacity of clad plates with large subclad flaws significantly exceeded that of an unclad plate. 13 figs., 1 tab.

  2. Metal vapor arc ion plating

    DOE Patents [OSTI]

    Bertram, L.A.; Fisher, R.W.; Mattox, D.M.; Zanner, F.J.

    1986-09-09T23:59:59.000Z

    A method and apparatus for ion plating are described. The apparatus uses more negative than a first electrode voltage in a vacuum arc remelt system to attract low energy ions from the anode electrode to the article to be plated. 2 figs.

  3. Trace fossils of Fort Hays Limestone Member of Niobrara Chalk (Upper Cretaceous), west-central Kansas

    E-Print Network [OSTI]

    Frey, R. W.

    1970-07-17T23:59:59.000Z

    THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS ARTICLE 53 (CRETACEOUS 2) TRACE FOSSILS OF FORT HAYS LIMESTONE MEMBER OF NIOBRARA CHALK (UPPER CRETACEOUS), WEST-CENTRAL KANSAS ROBERT W. FREY University of Georgia Marine Institute, Sapelo... Figures, 10 Plates, 4 Tables TRACE FOSSILS OF FORT HAYS LIMESTONE MEMBER OF NIOBRARA CHALK (UPPER CRETACEOUS), WEST-CENTRAL KANSAS' ROBERT W. FREY University of Georgia Marine Institute, Sapelo Island, Georgia CONTENTS PAGE PAGE ABSTRACT 5 Thalassinoides...

  4. High loading uranium fuel plate

    DOE Patents [OSTI]

    Wiencek, Thomas C. (Bolingbrook, IL); Domagala, Robert F. (Indian Head Park, IL); Thresh, Henry R. (Palos Heights, IL)

    1990-01-01T23:59:59.000Z

    Two embodiments of a high uranium fuel plate are disclosed which contain a meat comprising structured uranium compound confined between a pair of diffusion bonded ductile metal cladding plates uniformly covering the meat, the meat having a uniform high fuel loading comprising a content of uranium compound greater than about 45 Vol. % at a porosity not greater than about 10 Vol. %. In a first embodiment, the meat is a plurality of parallel wires of uranium compound. In a second embodiment, the meat is a dispersion compact containing uranium compound. The fuel plates are fabricated by a hot isostatic pressing process.

  5. Carbon-assisted flyer plates

    DOE Patents [OSTI]

    Stahl, D.B.; Paisley, D.L.

    1994-04-12T23:59:59.000Z

    A laser driven flyer plate is described utilizing an optical fiber connected to a laser. The end of the optical fiber has a layer of carbon and a metal layer deposited onto it. The carbon layer provides the laser induced plasma which is superior to the plasma produced from most metals. The carbon layer plasma is capable of providing a flatter flyer plate, converting more of the laser energy to driving plasma, promoting a higher flyer plate acceleration, and providing a more uniform pulse behind the plate. In another embodiment, the laser is in optical communication with a substrate onto which a layer of carbon and a layer of metal have been deposited. 2 figures.

  6. Plates for vacuum thermal fusion

    DOE Patents [OSTI]

    Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

    2002-01-01T23:59:59.000Z

    A process for effectively bonding arbitrary size or shape substrates. The process incorporates vacuum pull down techniques to ensure uniform surface contact during the bonding process. The essence of the process for bonding substrates, such as glass, plastic, or alloys, etc., which have a moderate melting point with a gradual softening point curve, involves the application of an active vacuum source to evacuate interstices between the substrates while at the same time providing a positive force to hold the parts to be bonded in contact. This enables increasing the temperature of the bonding process to ensure that the softening point has been reached and small void areas are filled and come in contact with the opposing substrate. The process is most effective where at least one of the two plates or substrates contain channels or grooves that can be used to apply vacuum between the plates or substrates during the thermal bonding cycle. Also, it is beneficial to provide a vacuum groove or channel near the perimeter of the plates or substrates to ensure bonding of the perimeter of the plates or substrates and reduce the unbonded regions inside the interior region of the plates or substrates.

  7. Next Generation Bipolar Plates for Automotive PEM Fuel Cells

    SciTech Connect (OSTI)

    Orest Adrianowycz; Julian Norley; David J. Stuart; David Flaherty; Ryan Wayne; Warren Williams; Roger Tietze; Yen-Loan H. Nguyen; Tom Zawodzinski; Patrick Pietrasz

    2010-04-15T23:59:59.000Z

    The results of a successful U.S. Department of Energy (DoE) funded two-year $2.9 MM program lead by GrafTech International Inc. (GrafTech) are reported and summarized. The program goal was to develop the next generation of high temperature proton exchange membrane (PEM) fuel cell bipolar plates for use in transportation fuel cell applications operating at temperatures up to 120 C. The bipolar plate composite developed during the program is based on GrafTechs GRAFCELL? resin impregnated flexible graphite technology and makes use of a high temperature Huntsman Advanced Materials resin system which extends the upper use temperature of the composite to the DoE target. High temperature performance of the new composite is achieved with the added benefit of improvements in strength, modulus, and dimensional stability over the incumbent resin systems. Other physical properties, including thermal and electrical conductivity of the new composite are identical to or not adversely affected by the new resin system. Using the new bipolar plate composite system, machined plates were fabricated and tested in high temperature single-cell fuel cells operating at 120 C for over 1100 hours by Case Western Reserve University. Final verification of performance was done on embossed full-size plates which were fabricated and glued into bipolar plates by GrafTech. Stack testing was done on a 10-cell full-sized stack under a simulated drive cycle protocol by Ballard Power Systems. Freeze-thaw performance was conducted by Ballard on a separate 5-cell stack and shown to be within specification. A third stack was assembled and shipped to Argonne National Laboratory for independent performance verification. Manufacturing cost estimate for the production of the new bipolar plate composite at current and high volume production scenarios was performed by Directed Technologies Inc. (DTI). The production cost estimates were consistent with previous DoE cost estimates performed by DTI for the DoE on metal plates. The final result of DTIs analysis for the high volume manufacturing scenario ($6.85 /kW) came in slightly above the DoE target of $3 to $5/kW. This estimate was derived using a Best Case Scenario for many of the production process steps and raw material costs with projections to high volumes. Some of the process improvements assumed in this Best Case Scenario including high speed high impact forming and solvent-less resins, have not yet been implemented, but have a high probability of potential success.

  8. Corrosion resistant metallic bipolar plate

    DOE Patents [OSTI]

    Brady, Michael P. (Oak Ridge, TN); Schneibel, Joachim H. (Knoxville, TN); Pint, Bruce A. (Knoxville, TN); Maziasz, Philip J. (Oak Ridge, TN)

    2007-05-01T23:59:59.000Z

    A corrosion resistant, electrically conductive component such as a bipolar plate for a PEM fuel cell includes 20 55% Cr, balance base metal such as Ni, Fe, or Co, the component having thereon a substantially external, continuous layer of chromium nitride.

  9. Draft Inventory Upper Snake Province

    E-Print Network [OSTI]

    Draft Inventory Upper Snake Province Submitted To The Northwest Power and Conservation Council Portland, Oregon Prepared by December 2004 #12;BOI043620012.DOC/KG ii Contents Section Page Inventory

  10. No quantum friction between uniformly moving plates

    E-Print Network [OSTI]

    T. G. Philbin; U. Leonhardt

    2009-03-26T23:59:59.000Z

    The Casimir forces between two plates moving parallel to each other are found by calculating the vacuum electromagnetic stress tensor. The perpendicular force between the plates is modified by the motion but there is no lateral force on the plates. Electromagnetic vacuum fluctuations do not therefore give rise to "quantum friction" in this case, contrary to previous assertions. The result shows that the Casimir-Polder force on a particle moving at constant speed parallel to a plate also has no lateral component.

  11. CNEA Fresh Fuel Plate Characterization Summary Report

    SciTech Connect (OSTI)

    D. Keiser; F. Rice

    2012-02-01T23:59:59.000Z

    Characterization summary report outlining the findings of the fresh fuel examinations of the plates received from CNEA.

  12. Flow and Plate Motion in Compressor Valves

    E-Print Network [OSTI]

    Twente, Universiteit

    Flow and Plate Motion in Compressor Valves #12;Flow and Plate Motion in Compressor Valves R.A. Habing Cover Image: 4-stage reciprocating compressor system, Courtesy of Ariel Corporation Thesis.A. Habing, Enschede, The Netherlands #12;FLOW AND PLATE MOTION IN COMPRESSOR VALVES PROEFSCHRIFT ter

  13. 2011 Vibrations -1 VIBRATION OF PLATES & BARS

    E-Print Network [OSTI]

    Glashausser, Charles

    of plates of different shapes using Chladni patterns. APPARATUS: Function generator in FFTSCOPE, long and short flat bars, Chladni plates, salt, salt trays INTRODUCTION he equations of vibrational motion. The solutions become very complicated for the free boundary condition at the perimeter of the plate. The Chladni

  14. Apparatus and method for controlling plating uniformity

    DOE Patents [OSTI]

    Hachman Jr., John T.; Kelly, James J.; West, Alan C.

    2004-10-12T23:59:59.000Z

    The use of an insulating shield for improving the current distribution in an electrochemical plating bath is disclosed. Numerical analysis is used to evaluate the influence of shield shape and position on plating uniformity. Simulation results are compared to experimental data for nickel deposition from a nickel--sulfamate bath. The shield is shown to improve the average current density at a plating surface.

  15. Electroless metal plating of plastics

    DOE Patents [OSTI]

    Krause, Lawrence J. (Chicago, IL)

    1984-01-01T23:59:59.000Z

    Process for plating main group metals on aromatic polymers is carried out by the use of a nonaqueous solution of a salt of an alkali metal in a positive valence state and a main group metal in a negative valence state with contact between the solution and polymer providing a redox reaction causing the deposition of the main group metal and the reduction of the polymer. Products from the process exhibit useful decorative and electrical properties.

  16. Electroless metal plating of plastics

    DOE Patents [OSTI]

    Krause, L.J.

    1982-09-20T23:59:59.000Z

    Process for plating main group metals on aromatic polymers is carried out by the use of a nonaqueous solution of a salt of an alkali metal in a positive valence state and a main group metal in a negative valence state with contact between the solution and polymer providing a redox reaction causing the deposition of the main group metal and the reduction of the polymer. Products from the process exhibit useful decorative and electrical properties.

  17. Electroless metal plating of plastics

    DOE Patents [OSTI]

    Krause, Lawrence J. (Chicago, IL)

    1986-01-01T23:59:59.000Z

    Process for plating main group metals on aromatic polymers is carried out by the use of a nonaqueous solution of a salt of an alkali metal in a positive valence state and a main group metal in a negative valence state with contact between the solution and polymer providing a redox reaction causing the deposition of the main group metal and the reduction of the polymer. Products from the process exhibit useful decorative and electrical properties.

  18. Separator plate for a fuel cell

    DOE Patents [OSTI]

    Petri, Randy J. (Crete, IL); Meek, John (Downers Grove, IL); Bachta, Robert P. (Chicago, IL); Marianowski, Leonard G. (Mount Prospect, IL)

    1996-01-01T23:59:59.000Z

    A separator plate for a fuel cell comprising an anode current collector, a cathode current collector and a main plate, the main plate disposed between the anode current collector and the cathode current collector. The anode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the anode side of the separator plate and the cathode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the cathode side of the separator plate. In this manner, the number of components required to manufacture and assemble a fuel cell stack is reduced.

  19. Separator plate for a fuel cell

    DOE Patents [OSTI]

    Petri, R.J.; Meek, J.; Bachta, R.P.; Marianowski, L.G.

    1996-04-02T23:59:59.000Z

    A separator plate is described for a fuel cell comprising an anode current collector, a cathode current collector and a main plate, the main plate disposed between the anode current collector and the cathode current collector. The anode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the anode side of the separator plate and the cathode current collector forms a flattened peripheral wet seal structure and manifold wet seal structure on the cathode side of the separator plate. In this manner, the number of components required to manufacture and assemble a fuel cell stack is reduced. 9 figs.

  20. Mechanical characteristics of folds in Upper Cretaceous strata in the Disturbed Belt of northwestern Montana

    E-Print Network [OSTI]

    Gilbert, Pat Kader

    1974-01-01T23:59:59.000Z

    -shape. The trough in S3 (see unit 23, Plate 2) is hi. ghly fractured in the sandstone and shows considerable flowage in the shale. From the air, it is readily apparent that these folds of the upper Two Medicine are much smaller in lateral extent along strike than... Formation (mostly shale), the Virgelle Sandstone, and the Two Medi. cine Formation (mostly shale), Montana Group, Upper Cretaceous. The Virgelle Sand- stone, about 54 meters thick, lies between the shales and behaved as the most competent member...

  1. An early history of pure shear in the upper plate of the raft river

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia: Energy Resources Jump to:Almo,TransmissionOperations atmetamorphic

  2. Rapidly Moving Divertor Plates In A Tokamak

    SciTech Connect (OSTI)

    S. Zweben

    2011-05-16T23:59:59.000Z

    It may be possible to replace conventional actively cooled tokamak divertor plates with a set of rapidly moving, passively cooled divertor plates on rails. These plates would absorb the plasma heat flux with their thermal inertia for ~10-30 sec, and would then be removed from the vessel for processing. When outside the tokamak, these plates could be cooled, cleaned, recoated, inspected, and then returned to the vessel in an automated loop. This scheme could provide nearoptimal divertor surfaces at all times, and avoid the need to stop machine operation for repair of damaged or eroded plates. We describe various possible divertor plate designs and access geometries, and discuss an initial design for a movable and removable divertor module for NSTX-U.

  3. The analysis of orthogonally stiffened plates

    E-Print Network [OSTI]

    Bennett, Virgil O'Neal

    1966-01-01T23:59:59.000Z

    . Symmetrical Loading on a Plate Element 2. General Loading on a Plate Element 3. Repeating Element of General Configuration 4. Longitudinal Ribbing 5. Longitudinal and Lateral Ribbing 6. Skewed Ribbing 60 60 61 61 62 e 62 7. Idealised and Actual Rib... of ribbing shown in figure 3, which includes as special cases, plates with longitudinal or lateral ribbing (figure 4), longitudinal and lateral ribbing (figure 5), or skewed 10 ribbing (figure 6). The basis of the analysi. s in this report...

  4. Zirconium Plate Measuring Instrument (ZPMI) Design Report

    SciTech Connect (OSTI)

    K. Davies; J. H. Jackson

    2013-10-01T23:59:59.000Z

    This report describes the design of a device intended to measure radiation-induced strain in zirconium plate specimens as a function of neutron fluence.

  5. Fuel cell cooler-humidifier plate

    DOE Patents [OSTI]

    Vitale, Nicholas G. (Albany, NY); Jones, Daniel O. (Glenville, NY)

    2000-01-01T23:59:59.000Z

    A cooler-humidifier plate for use in a proton exchange membrane (PEM) fuel cell stack assembly is provided. The cooler-humidifier plate combines functions of cooling and humidification within the fuel cell stack assembly, thereby providing a more compact structure, simpler manifolding, and reduced reject heat from the fuel cell. Coolant on the cooler side of the plate removes heat generated within the fuel cell assembly. Heat is also removed by the humidifier side of the plate for use in evaporating the humidification water. On the humidifier side of the plate, evaporating water humidifies reactant gas flowing over a moistened wick. After exiting the humidifier side of the plate, humidified reactant gas provides needed moisture to the proton exchange membranes used in the fuel cell stack assembly. The invention also provides a fuel cell plate that maximizes structural support within the fuel cell by ensuring that the ribs that form the boundaries of channels on one side of the plate have ends at locations that substantially correspond to the locations of ribs on the opposite side of the plate.

  6. AGU Monograph, Plate Boundary Zones, in press. Page 1 Crustal Block Rotations and Plate Coupling

    E-Print Network [OSTI]

    McCaffrey, Robert

    AGU Monograph, Plate Boundary Zones, in press. Page 1 Crustal Block Rotations and Plate Coupling that considering both block rotations and fault locking significantly improves the fit to the data over models by locking on #12;AGU Monograph, Plate Boundary Zones, in press. Page 2 block-bounding faults and apply

  7. Whole Earth Structure and Plate Tectonics

    E-Print Network [OSTI]

    Whole Earth Structure and Plate Tectonics Earth Structure (2nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm WW Norton; unless noted otherwise #12; EarthStructure (2nd ed evolution of Earth: from continental drift (early 1900's) to sea-floor spreading (early 1960's) to plate

  8. Evacuated flat-plate solar collectors

    SciTech Connect (OSTI)

    Whittemore, P.G.

    1981-09-15T23:59:59.000Z

    A structural support system is disclosed for use in an evacuated, flat-plate, solar collector to eliminate the problem of stress fractures in a glass cover plate. Nonlinearly spaced supports are used within the collector to dampen vibrations in the glass cover and to prevent overdeflection before buckling or stress fractures occur.

  9. Reference Phase of Fresnel Zone Plates

    E-Print Network [OSTI]

    G. W. Webb

    2003-02-28T23:59:59.000Z

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

  10. Vacuum fusion bonding of glass plates

    DOE Patents [OSTI]

    Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

    2001-01-01T23:59:59.000Z

    An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

  11. Vacuum fusion bonding of glass plates

    DOE Patents [OSTI]

    Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

    2000-01-01T23:59:59.000Z

    An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

  12. Extending the Upper Temperature Limit for Life

    E-Print Network [OSTI]

    Lovley, Derek

    ) un- der N2-CO2 (80:20) in sealed culture tubes that con- tained formate (10 mM) as the electron donor that permit strain 121 to grow at such high temperatures are unknown. It is gen- erally assumed that the upperExtending the Upper Temperature Limit for Life Kazem Kashefi and Derek R. Lovley* The upper

  13. Calibration of a Thomson parabola ion spectrometer and Fujifilm imaging plate detectors for protons, deuterons, and alpha particles

    SciTech Connect (OSTI)

    Freeman, C. G.; Canfield, M. J.; Graeper, G. B.; Lombardo, A. T.; Stillman, C. R.; Padalino, S. J. [Physics Department, SUNY Geneseo, Geneseo, New York 14454 (United States); Fiksel, G.; Stoeckl, C.; Mileham, C.; Sangster, T. C. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States); Sinenian, N.; Frenje, J. A. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

    2011-07-15T23:59:59.000Z

    A Thomson parabola ion spectrometer has been designed for use at the Multiterawatt (MTW) laser facility at the Laboratory for Laser Energetics (LLE) at University of Rochester. This device uses parallel electric and magnetic fields to deflect particles of a given mass-to-charge ratio onto parabolic curves on the detector plane. Once calibrated, the position of the ions on the detector plane can be used to determine the particle energy. The position dispersion of both the electric and magnetic fields of the Thomson parabola was measured using monoenergetic proton and alpha particle beams from the SUNY Geneseo 1.7 MV tandem Pelletron accelerator. The sensitivity of Fujifilm BAS-TR imaging plates, used as a detector in the Thomson parabola, was also measured as a function of the incident particle energy over the range from 0.6 MeV to 3.4 MeV for protons and deuterons and from 0.9 MeV to 5.4 MeV for alpha particles. The device was used to measure the energy spectrum of laser-produced protons at MTW.

  14. Upper Los Alamos Canyon Cleanup

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrinceton PlasmaAfternoon TalksDigitalRevisionof EnergyUpper Los

  15. The effect of periodic unsteady wakes on boundary layer transition and heat transfer on a curved plate

    E-Print Network [OSTI]

    Wright, Lance Cole

    1996-01-01T23:59:59.000Z

    generator cross section looking upstream: l. Upper wall, 2. Lower wall, 3. Side wall, 4 Timing belt pulley, 5. Rotating disk, 6. 2. 0 mm diameter cylindrical rod. Test Section: 1. Traversing system, 2. Nozzle, 3. Wake generator, 4. Electric motor, 5...-dimensional mean velocity at different s/s. locations on the heat transfer plate for 0= 0. 0 (0 rods). 39 41 43 Figure 13. Figure 14. Figure 15. Figure 16. Non-dimensional mean velocity at different s/s, locations on the heat transfer plate for Q= 1. 033...

  16. Selective Electroless Nickel Plating of Particle Arrays on Polyelectrolyte Multilayers

    E-Print Network [OSTI]

    Lee, Ilsoon

    Selective Electroless Nickel Plating of Particle Arrays on Polyelectrolyte Multilayers Ilsoon Lee Received June 30, 2003. Revised Manuscript Received September 25, 2003 Selective electroless nickel plating and particles. Selectively nickel-plated surfaces were characterized with optical microscopy, X

  17. Undrained behavior of plate anchors subjected to general loading

    E-Print Network [OSTI]

    Yang, Ming

    2010-01-14T23:59:59.000Z

    This study presents a method for predicting the undrained behavior of plate anchors, including out-of-plane loading of simple plates and performance of suction embedded plate anchors (SEPLA). Three dimensional finite element models are used...

  18. Fiber optic mounted laser driven flyer plates

    DOE Patents [OSTI]

    Paisley, Dennis L. (Santa Fe, NM)

    1991-01-01T23:59:59.000Z

    A laser driven flyer plate where the flyer plate is deposited directly onto the squared end of an optical fiber. The plasma generated by a laser pulse drives the flyer plate toward a target. In another embodiment, a first metal layer is deposited onto the squared end of an optical fiber, followed by a layer of a dielectric material and a second metal layer. The laser pulse generates a plasma in the first metal layer, but the plasma is kept away from the second metal layer by the dielectric layer until the pressure reaches the point where shearing occurs.

  19. automatic license plate readers: Topics by E-print Network

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

    to causalism, building on Frankfurts concept of guidance. Ezio Di Nucci 151 Lesson 3. Plate Tectonics Overview Geosciences Websites Summary: Lesson 3. Plate Tectonics...

  20. Production design for plate products in the steel industry

    E-Print Network [OSTI]

    We describe an optimization tool for a multistage production process for ... plates. The problem we solve yields a production design (or plan) for rectangular plate.

  1. Characterization of Tri-lab Tantalum Plate.

    SciTech Connect (OSTI)

    Buchheit, Thomas E.; Cerreta, Ellen K.; Deibler, Lisa Anne; Chen, Shu-Rong; Michael, Joseph R.

    2014-09-01T23:59:59.000Z

    This report provides a detailed characterization Tri-lab Tantalum (Ta) plate jointly purchased from HCStark Inc. by Sandia, Los Alamos and Lawrence Livermore National Laboratories. Data in this report was compiled from series of material and properties characterization experiments carried out at Sandia (SNL) and Los Alamos (LANL) Laboratories through a leveraged effort funded by the C2 campaign. Results include microstructure characterization detailing the crystallographic texture of the material and an increase in grain size near the end of the rolled plate. Mechanical properties evaluations include, compression cylinder, sub-scale tension specimen, micohardness and instrumented indentation testing. The plate was found to have vastly superior uniformity when compare with previously characterized wrought Ta material. Small but measurable variations in microstructure and properties were noted at the end, and at the top and bottom edges of the plate.

  2. Fresnel phase plates as reconfigurable microfluidic lenses

    E-Print Network [OSTI]

    Tsikata, Sedina, 1981-

    2004-01-01T23:59:59.000Z

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

  3. Plate subrotations Marco Cuffaro,1,2

    E-Print Network [OSTI]

    Doglioni, Carlo

    to compute relative motion of two plates not sharing a margin. [3] Relative motions are important contemporaneous rotation about its axis, or as a car that starts swinging while traveling. [8] In this paper, we

  4. Thin Plates 4.1 Introduction

    E-Print Network [OSTI]

    Qin, Qinghua

    and in [14] for post-buckling analysis of thin plates. Alternatively, Jin et al. [5] developed a set experiences essentially a lateral displacement w (in-plane displacements u and v are also experienced because

  5. Composite bipolar plate for electrochemical cells

    DOE Patents [OSTI]

    Wilson, Mahlon S. (Los Alamos, NM); Busick, Deanna N. (Los Alamos, NM)

    2001-01-01T23:59:59.000Z

    A bipolar separator plate for fuel cells consists of a molded mixture of a vinyl ester resin and graphite powder. The plate serves as a current collector and may contain fluid flow fields for the distribution of reactant gases. The material is inexpensive, electrically conductive, lightweight, strong, corrosion resistant, easily mass produced, and relatively impermeable to hydrogen gas. The addition of certain fiber reinforcements and other additives can improve the properties of the composite material without significantly increasing its overall cost.

  6. Lighting system with heat distribution face plate

    DOE Patents [OSTI]

    Arik, Mehmet; Weaver, Stanton Earl; Stecher, Thomas Elliot; Kuenzler, Glenn Howard; Wolfe, Jr., Charles Franklin; Li, Ri

    2013-09-10T23:59:59.000Z

    Lighting systems having a light source and a thermal management system are provided. The thermal management system includes synthetic jet devices, a heat sink and a heat distribution face plate. The synthetic jet devices are arranged in parallel to one and other and are configured to actively cool the lighting system. The heat distribution face plate is configured to radially transfer heat from the light source into the ambient air.

  7. Corrosion test cell for bipolar plates

    DOE Patents [OSTI]

    Weisbrod, Kirk R. (Los Alamos, NM)

    2002-01-01T23:59:59.000Z

    A corrosion test cell for evaluating corrosion resistance in fuel cell bipolar plates is described. The cell has a transparent or translucent cell body having a pair of identical cell body members that seal against opposite sides of a bipolar plate. The cell includes an anode chamber and an cathode chamber, each on opposite sides of the plate. Each chamber contains a pair of mesh platinum current collectors and a catalyst layer pressed between current collectors and the plate. Each chamber is filled with an electrolyte solution that is replenished with fluid from a much larger electrolyte reservoir. The cell includes gas inlets to each chamber for hydrogen gas and air. As the gases flow into a chamber, they pass along the platinum mesh, through the catalyst layer, and to the bipolar plate. The gas exits the chamber through passageways that provide fluid communication between the anode and cathode chambers and the reservoir, and exits the test cell through an exit port in the reservoir. The flow of gas into the cell produces a constant flow of fresh electrolyte into each chamber. Openings in each cell body is member allow electrodes to enter the cell body and contact the electrolyte in the reservoir therein. During operation, while hydrogen gas is passed into one chamber and air into the other chamber, the cell resistance is measured, which is used to evaluate the corrosion properties of the bipolar plate.

  8. Geology of the upper James River area Mason County, Texas

    E-Print Network [OSTI]

    White, Dixon Nesbit

    1961-01-01T23:59:59.000Z

    of tbe Riley foraation ~ ~ ~ ~ . ~ ~ ~ i 19 XV. Weathered surfaoo of bish' exhibiting typioal eoabbago- bead stru001zo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a ~ ~ ~ ~ ~ ~ ~ ~ ~ V, Rfohera @bish ooours 1n ths. aiddlo of tho Poiat Peak shale aeabor, Tho biobera bas Man... froa the outcrop aad lies in an 0'1eFCRI$04 positions ~ ~ ~ i ~ ~ ~ ~ ~ ~ ~ VI, Point peak shale on the nest bask of Roy Crmk near the northern interseotion of Rey Creek and the Jaaes RiVsr Roadp ' ~ ~ ~ ~ ~ ~ i...

  9. Geology of the upper James River area Mason County, Texas

    E-Print Network [OSTI]

    White, Dixon Nesbit

    1961-01-01T23:59:59.000Z

    of tbe Riley foraation ~ ~ ~ ~ . ~ ~ ~ i 19 XV. Weathered surfaoo of bish' exhibiting typioal eoabbago- bead stru001zo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ a ~ ~ ~ ~ ~ ~ ~ ~ ~ V, Rfohera @bish ooours 1n ths. aiddlo of tho Poiat Peak shale aeabor, Tho biobera bas Man... froa the outcrop aad lies in an 0'1eFCRI$04 positions ~ ~ ~ i ~ ~ ~ ~ ~ ~ ~ VI, Point peak shale on the nest bask of Roy Crmk near the northern interseotion of Rey Creek and the Jaaes RiVsr Roadp ' ~ ~ ~ ~ ~ ~ i...

  10. Biological Survey of the Upper Purgatoire Watershed

    E-Print Network [OSTI]

    Biological Survey of the Upper Purgatoire Watershed Las Animas County, CO John Carney Colorado ...............................................................................................................9 Management Urgency Ranks ........................................................................................................10 POTENTIAL CONSERVATION SITE PLANNING BOUNDARIES........................................12 Off

  11. Upper Cumberland EMC- Energy Efficiency Rebate Programs

    Broader source: Energy.gov [DOE]

    Upper Cumberland Electric Membership Corporation (UCEMC), in collaboration with the Tennessee Valley Authority, offers incentives for its customers to purchase and install energy efficient...

  12. STEEL PLATE SHEAR WALL BUILDINGS: DESIGN REQUIREMENTS AND RESEARCH

    E-Print Network [OSTI]

    Bruneau, Michel

    , University at Buffalo, Buffalo, NY 14260. #12;plate shear wall design and use of light-gage cold form platesSTEEL PLATE SHEAR WALL BUILDINGS: DESIGN REQUIREMENTS AND RESEARCH Michel Bruneau, P.E. 1 Dr areas. This paper provides an overview of the current state-of-the-art in steel plate shear wall design

  13. The Statistical Upper Mantle Assemblage Anders Meibom*

    E-Print Network [OSTI]

    Anderson, Don L.

    Mantle Assemblage', which forms as the result of long-term plate tectonic recycling of sedimentary-3] and noble gases [4] has led to the notion that the source region for "normal" MORB (N-MORB), referred

  14. Microporous microchannel plates and method of manufacturing same

    SciTech Connect (OSTI)

    Beetz, C.P. Jr.; Boerstler, R.W.; Steinbeck, J.; Winn, D.R.

    2000-04-04T23:59:59.000Z

    A microchannel plate and method of manufacturing same is provided. The microchannel plate includes a plate consisting of an anodized material and a plurality of channels which are formed during the anodization of the material and extend between the two sides of the plate. Electrodes are also disposed on each side of the plate for generating an electrical field within the channels. Preferably, the material is alumina and the channels are activated such that the channel walls are conductive and highly secondary emissive.

  15. Microporous microchannel plates and method of manufacturing same

    DOE Patents [OSTI]

    Beetz, Jr., Charles P. (New Milford, CT); Boerstler, Robert W. (Woodbury, CT); Steinbeck, John (Fitzwilliam, NH); Winn, David R. (Wilton, CT)

    2000-01-01T23:59:59.000Z

    A microchannel plate and method of manufacturing same is provided. The microchannel plate includes a plate consisting of an anodized material and a plurality of channels which are formed during the anodization of the material and extend between the two sides of the plate. Electrodes are also disposed on each side of the plate for generating an electrical field within the channels. Preferably, the material is alumina and the channels are activated such that the channel walls are conductive and highly secondary emissive.

  16. Rotary sequencing valve with flexible port plate

    DOE Patents [OSTI]

    Wagner, Glenn Paul

    2005-05-10T23:59:59.000Z

    Rotary sequencing valve comprising a rotor having a rotor face rotatable about an axis perpendicular to the rotor face, wherein the rotor face has a plurality of openings, one or more of which are disposed at a selected radial distance from the axis, and wherein the rotor includes at least one passage connecting at least one pair of the plurality of openings. The valve includes a flexible port plate having a first side and a second side, wherein the first side faces the rotor and engages the rotor such that the flexible port plate can be rotated coaxially by the rotor and can move axially with respect to the rotor, wherein the flexible port plate has a plurality of ports between the first and second sides, which ports are aligned with the openings in the rotor face. The valve also includes a stator having a stator face disposed coaxially with the rotor and the flexible port plate, wherein the second side of the flexible port plate is in sealable, slidable rotary contact with the stator face, wherein the stator face has a plurality of openings, some of which are disposed at the selected radial distance from the axis, and wherein the plurality of openings extend as passages through the stator. The valve may be used in pressure or temperature swing adsorption systems.

  17. Recovery process for electroless plating baths

    DOE Patents [OSTI]

    Anderson, R.W.; Neff, W.A.

    1992-05-12T23:59:59.000Z

    A process is described for removing, from spent electroless metal plating bath solutions, accumulated byproducts and counter-ions that have deleterious effects on plating. The solution, or a portion thereof, is passed through a selected cation exchange resin bed in hydrogen form, the resin selected from strong acid cation exchangers and combinations of intermediate acid cation exchangers with strong acid cation exchangers. Sodium and nickel ions are sorbed in the selected cation exchanger, with little removal of other constituents. The remaining solution is subjected to sulfate removal through precipitation of calcium sulfate hemihydrate using, sequentially, CaO and then CaCO[sub 3]. Phosphite removal from the solution is accomplished by the addition of MgO to form magnesium phosphite trihydrate. The washed precipitates of these steps can be safely discarded in nontoxic land fills, or used in various chemical industries. Finally, any remaining solution can be concentrated, adjusted for pH, and be ready for reuse. The plating metal can be removed from the exchanger with sulfuric acid or with the filtrate from the magnesium phosphite precipitation forming a sulfate of the plating metal for reuse. The process is illustrated as applied to processing electroless nickel plating baths. 18 figs.

  18. Recovery process for electroless plating baths

    DOE Patents [OSTI]

    Anderson, Roger W. (Farragut, TN); Neff, Wayne A. (Knoxville, TN)

    1992-01-01T23:59:59.000Z

    A process for removing, from spent electroless metal plating bath solutions, accumulated byproducts and counter-ions that have deleterious effects on plating. The solution, or a portion thereof, is passed through a selected cation exchange resin bed in hydrogen form, the resin selected from strong acid cation exchangers and combinations of intermediate acid cation exchangers with strong acid cation exchangers. Sodium and nickel ions are sorbed in the selected cation exchanger, with little removal of other constituents. The remaining solution is subjected to sulfate removal through precipitation of calcium sulfate hemihydrate using, sequentially, CaO and then CaCO.sub.3. Phosphite removal from the solution is accomplished by the addition of MgO to form magnesium phosphite trihydrate. The washed precipitates of these steps can be safely discarded in nontoxic land fills, or used in various chemical industries. Finally, any remaining solution can be concentrated, adjusted for pH, and be ready for reuse. The plating metal can be removed from the exchanger with sulfuric acid or with the filtrate from the magnesium phosphite precipitation forming a sulfate of the plating metal for reuse. The process is illustrated as applied to processing electroless nickel plating baths.

  19. Performance evaluation of the R6R018 fuel plate using PLATE code

    SciTech Connect (OSTI)

    Pavel G. Medvedev; Hakan Ozaltun

    2010-03-01T23:59:59.000Z

    The paper presents results of performance evaluation of the R6R018 fuel plate using PLATE code. R6R018 is a U-7Mo dispersion type mini-plate with Al-3.5Si matrix irradiated in the RERTR-9B experiment. The design of this plate is prototypical of the planned LEONIDAS irradiation test. Therefore, a detailed performance analysis of this plate is important to confirm acceptable behavior in pile, and to provide baseline and justification for further analysis and testing. Specific results presented in the paper include fuel temperature history, growth of the interaction layer between the U-Mo and the matrix, swelling, growth of the corrosion layer, and degradation of thermal conductivity. The methodology of the analysis will be discussed including the newly developed capability to account for the formation of the interaction layer during fuel fabrication.

  20. Highly conductive composites for fuel cell flow field plates and bipolar plates

    DOE Patents [OSTI]

    Jang, Bor Z; Zhamu, Aruna; Song, Lulu

    2014-10-21T23:59:59.000Z

    This invention provides a fuel cell flow field plate or bipolar plate having flow channels on faces of the plate, comprising an electrically conductive polymer composite. The composite is composed of (A) at least 50% by weight of a conductive filler, comprising at least 5% by weight reinforcement fibers, expanded graphite platelets, graphitic nano-fibers, and/or carbon nano-tubes; (B) polymer matrix material at 1 to 49.9% by weight; and (C) a polymer binder at 0.1 to 10% by weight; wherein the sum of the conductive filler weight %, polymer matrix weight % and polymer binder weight % equals 100% and the bulk electrical conductivity of the flow field or bipolar plate is at least 100 S/cm. The invention also provides a continuous process for cost-effective mass production of the conductive composite-based flow field or bipolar plate.

  1. Ponderomotive phase plate for transmission electron microscopes

    DOE Patents [OSTI]

    Reed, Bryan W. (Livermore, CA)

    2012-07-10T23:59:59.000Z

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

  2. Cascade impactor and jet plate for same

    DOE Patents [OSTI]

    Dahlin, Robert S.; Farthing, William E.; Landham Jr., Edward C.

    2004-02-03T23:59:59.000Z

    A sampling system and method for sampling particulate matter from a high-temperature, high-pressure gas stream. A cyclone sampler for use at high temperatures and pressures, and having threadless sacrificial connectors is disclosed. Also disclosed is an improved cascade impactor including jet plates with integral spacers, and alignment features provided for aligning the jet plates with their associated collection substrates. An activated bauxite alkali collector is disclosed, and includes an alumina liner. The sampling system can be operated remotely or locally, and can be permanently installed or configured as a portable system.

  3. Quality assurance in small plating shops

    SciTech Connect (OSTI)

    McNabb, W.J. (Electroless Nickel Plating of Louisiana, Hammond, LA (United States))

    1993-10-01T23:59:59.000Z

    The potential for electroless nickel coatings in oilfield and petrochemical applications is quite high. The greatest obstacle to their use has been a reputation for poor quality due to a lack of quality control in many plating shops. To overcome this, electroless nickel shops should not only have a quality control program in their operation, but must also document its use and success. This article describes how a plating shoe can develop the necessary procedures, manuals, and paperwork trail to offer quality assurance and to satisfy customers.

  4. Fabrication of nickel microbump on aluminum using electroless nickel plating

    SciTech Connect (OSTI)

    Watanabe, H.; Honma, H. [Kanto Gakuin Univ., Yokohama, Kanagawa (Japan). Faculty of Engineering

    1997-02-01T23:59:59.000Z

    Fabrication of nickel microbumps on an aluminum electrode using a nickel displacement and a direct nickel plating process was investigated. Electroless nickel plating reaction with hypophosphite as a reducing agent was not initiated on the aluminum substrate, because aluminum does not have catalytic action on the oxidation of hypophosphite. Accordingly, nickel was initially deposited on the aluminum using nickel displacement plating for the initiation of the electroless plating. Nickel bumps on the aluminum electrode were fabricated by treatment of the nickel displacement plating followed by electroless nickel plating. Nickel microbumps also can be formed on the aluminum electrode without the displacement plating process. Activation of the aluminum surface is an indispensable process to initiate electroless nickel plating. Uniform bumps 20 {micro}m wide and 15 {micro}m high with good configuration were obtained by direct nickel plating after being activated with dimethyl amine borane.

  5. REVIEW OF SCIENTIFIC INSTRUMENTS 82, 073301 (2011) Calibration of a Thomson parabola ion spectrometer and Fujifilm imaging

    E-Print Network [OSTI]

    accelerator. The sensitivity of Fujifilm BAS-TR imaging plates, used as a detector in the Thomson parabola

  6. Ground Turkey and Potato Plate Ingredients

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Ground Turkey and Potato Plate Ingredients: 1 onion 1/2 pound ground turkey 1 cup ketchup, low, brown ground turkey and onion together over medium heat 8 to 10 minutes or until turkey is no longer. Return turkey to skillet. 3. Add ketchup to skillet; cover and simmer over medium-low heat 10 minutes. 4

  7. Bending Energy of Rods and Plates

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    descriptors DUH HFFHQWULFLW\\ VSKHULFLW\\ 3$ SHULPHWHU VTXDUHG GLYLGHG E\\ WLPHV area) and bending energy185 Chapter 9 Bending Energy of Rods and Plates Integrated curvature and bending energy of a closed curvature/energy values over a chain-code description of the contour (as in binary length estimators). We

  8. Metallic Bipolar Plates with Composite Coatings

    E-Print Network [OSTI]

    that is available in sheet form For corrosion resistance, apply a coating that is a composite of two materials: ­ Filler to provide electrical conductivity · Candidate Materials: graphite, carbon black, TiB2 and CaB6Metallic Bipolar Plates with Composite Coatings Jennifer Mawdsley Argonne National Laboratory Fuel

  9. Brazed bipolar plates for PEM fuel cells

    DOE Patents [OSTI]

    Neutzler, J.K.

    1998-07-07T23:59:59.000Z

    A liquid-cooled, bipolar plate separating adjacent cells of a PEM fuel cell comprises corrosion-resistant metal sheets brazed together so as to provide a passage between the sheets through which a dielectric coolant flows. The brazement comprises a metal which is substantially insoluble in the coolant. 6 figs.

  10. Titanium carbide bipolar plate for electrochemical devices

    DOE Patents [OSTI]

    LaConti, Anthony B. (Lynnfield, MA); Griffith, Arthur E. (Lynn, MA); Cropley, Cecelia C. (Acton, MA); Kosek, John A. (Danvers, MA)

    2000-07-04T23:59:59.000Z

    A corrosion resistant, electrically conductive, non-porous bipolar plate is made from titanium carbide for use in an eletrochemical device. The process involves blending titanium carbide powder with a suitable binder material, and molding the mixture, at an elevated temperature and pressure.

  11. Spectral characterization of storage phosphor imaging plates

    SciTech Connect (OSTI)

    Deresch, A.; Jechow, M.; Gollwitzer, C. [Federal Institute for Materials Research and Testing Unter den Eichen 87, 12205 Berlin (Germany)

    2014-02-18T23:59:59.000Z

    This work presents attenuation and sensitivity measurements of radiographic imaging plates (IPs) with quasimonoenergetic X-rays in the 860 kiloelectronvolt range. The measurements are used to validate theoretical predictions. A short overview of the theoretical model is given. The model can be used to describe the sensitivity of different detector types to a wide range of X-ray energies.

  12. Metalization of lipid vesicles via electroless plating

    SciTech Connect (OSTI)

    Ferrar, W.T.; O'Brien, D.F.; Warshawsky, A.; Voycheck, C.L.

    1988-01-06T23:59:59.000Z

    The encapsulation of metallic particles and metallic oxides within lipid vesicles has recently been of interest for applications such as catalysis, water splitting, and magnetic control of spin coupling. In this communication the authors introduce the concept and practice of the deposition of metal on vesicles by using electroless plating techniques. Coordination of low valent transition metals to organic functional groups on the surface of the bilayer membrane provides a means of binding metal atoms to vesicles. Chemical reduction produced zero valent atoms which serve as sites for further metal deposition by the chemical reduction techniques of electroless plating. Specifically, this procedure involved the binding of a small amount of tetrachloropalladate to the vesicle bilayer, reduction of the palladium(II) to palladium(0), followed by the deposition of much larger amounts of metal from an electroless plating solution. Electroless plating solutions were used for the deposition of palladium, nickel, cobalt, or copper metal onto the catalytic palladium centers. Since the metallic particles were associated with the vesicles, colloids were formed that were stable in water for much longer periods than the control metal particles formed in water alone. If the vesicles were composed in part of unsaturated lipids, with the olefinic groups on the hydrocarbon chains, the initial evidence suggests the transition metal was directed into the bilayer, rather than staying on the surface.

  13. Demonstration of 12 nm resolution Fresnel zone plate lens based soft x-ray microscopy

    E-Print Network [OSTI]

    Chao, W.

    2010-01-01T23:59:59.000Z

    of 12 nm Resolution Fresnel Zone Plate Lens based Soft X-raynanofabrication process for Fresnel zone plate lenses. Theoptical performance of Fresnel zone plate lens based imaging

  14. Preliminary Measurements From A New Flat Plate Facility For Aerodynamic Research

    SciTech Connect (OSTI)

    D. M. McEligot; D. W. Nigg; E. J. Walsh; D. Hernon; M.R.D. Davies

    2005-03-01T23:59:59.000Z

    This paper details the design and preliminary measurements used in the characterisation of a new flat plate research facility. The facility is designed specifically to aid in the understanding of entropy generation throughout the boundary layer with special attention given to non-equilibrium flows. Hot-wire measurements were obtained downstream of two turbulence generating grids. The turbulence intensity, integral and dissipation length scale ranges measured are 1.6%-7%, 5mm-17mm and 0.7mm-7mm, respectively. These values compared well to existing correlations. The flow downstream of both grids was found to be homogenous and isotropic. Flow visualisation is employed to determine aerodynamic parameters such as flow 2-dimensionality and the effect of the flap angle on preventing separation at the leading edge. The flow was found to be 2-dimensional over all measurement planes. The non-dimensional pressure distribution of a modern turbine blade suction surface is simulated on the flat plate through the use of a variable upper wall. The Reynolds number range based on wetted plate length and inlet velocity is 70,000-4,000,000.

  15. Flat plate puncture test convergence study.

    SciTech Connect (OSTI)

    Snow, Spencer (Idaho National Laboratories); Ammerman, Douglas James; Molitoris, David (Westinghouse); Tso, Chi-Fung (ARUP); Yaksh, Mike (NAC International)

    2010-10-01T23:59:59.000Z

    The ASME Task Group on Computational Mechanics for Explicit Dynamics is investigating the types of finite element models needed to accurately solve various problems that occur frequently in cask design. One type of problem is the 1-meter impact onto a puncture spike. The work described in this paper considers this impact for a relatively thin-walled shell, represented as a flat plate. The effects of mesh refinement, friction coefficient, material models, and finite element code will be discussed. The actual punch, as defined in the transport regulations, is 15 cm in diameter with a corner radius of no more than 6 mm. The punch used in the initial part of this study has the same diameter, but has a corner radius of 25 mm. This more rounded punch was used to allow convergence of the solution with a coarser mesh. A future task will be to investigate the effect of having a punch with a smaller corner radius. The 25-cm thick type 304 stainless steel plate that represents the cask wall is 1 meter in diameter and has added mass on the edge to represent the remainder of the cask. The amount of added mass to use was calculated using Nelm's equation, an empirically derived relationship between weight, wall thickness, and ultimate strength that prevents punch through. The outer edge of the plate is restrained so that it can only move in the direction parallel to the axis of the punch. Results that are compared include the deflection at the edge of the plate, the deflection at the center of the plate, the plastic strains at radius r=50 cm and r=100 cm , and qualitatively, the distribution of plastic strains. The strains of interest are those on the surface of the plate, not the integration point strains. Because cask designers are using analyses of this type to determine if shell will puncture, a failure theory, including the effect of the tri-axial nature of the stress state, is also discussed. The results of this study will help to determine what constitutes an adequate finite element model for analyzing the puncture hypothetical accident.

  16. SCALE-UP OF CARBON /CARBON BIPOLAR PLATES

    E-Print Network [OSTI]

    Scale-up of Carbon/Carbon Bipolar Plates Project Objectives Build and demonstrate a pilot facility#12;SCALE-UP OF CARBON /CARBON BIPOLAR PLATES Quarterly Report to the Department of Energy, May 19 #12;DOE PROGRAM OBJECTIVES Scale-up of Carbon/Carbon Bipolar Plates Phase I Technology Development

  17. Diffraction theory for azimuthally structured Fresnel zone plate

    E-Print Network [OSTI]

    Jahns, Jrgen

    Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jrgen Jahns A conventional Fresnel zone plate (FZP) consists of concentric rings with an alternating binary transmission of zero and one. In an azimuthally structured Fresnel zone plate (aFZP), the light transmission

  18. Comprehensive focusing analysis of various Fresnel zone plates

    E-Print Network [OSTI]

    Jahns, Jrgen

    Comprehensive focusing analysis of various Fresnel zone plates Qing Cao and Jurgen Jahns Optische and the linear superposition principle, of the focusing performances of various Fresnel zone plates. Many similarity between Fresnel zone plates and multilevel diffractive lenses, most of the obtained results

  19. Modified Fresnel zone plates that produce sharp Gaussian focal spots

    E-Print Network [OSTI]

    Jahns, Jrgen

    Modified Fresnel zone plates that produce sharp Gaussian focal spots Qing Cao and Jurgen Jahns Fresnel zone plate that can produce an approximate Gaussian focal spot is proposed for the focusing of 7.7 nm can be produced by a modified Fresnel zone plate with a minimum structure size of 30 nm

  20. area upper engadine: Topics by E-print Network

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

    Niles; Adam Pease 2001-01-01 18 An Upper Bound on Overflow Probability in Transient Source Systems Engineering Websites Summary: An Upper Bound on Overflow Probability in...

  1. Wave turbulence served up on a plate

    E-Print Network [OSTI]

    Pablo Cobelli; Philippe Petitjeans; Agnes Maurel; Vincent Pagneux; Nicolas Mordant

    2009-10-28T23:59:59.000Z

    Wave turbulence in a thin elastic plate is experimentally investigated. By using a Fourier transform profilometry technique, the deformation field of the plate surface is measured simultaneously in time and space. This enables us to compute the wavevector-frequency Fourier ($\\mathbf k, \\omega$) spectrum of the full space-time deformation velocity. In the 3D ($\\mathbf k, \\omega$) space, we show that the energy of the motion is concentrated on a 2D surface that represents a nonlinear dispersion relation. This nonlinear dispersion relation is close to the linear dispersion relation. This validates the usual wavenumber-frequency change of variables used in many experimental studies of wave turbulence. The deviation from the linear dispersion, which increases with the input power of the forcing, is attributed to weak non linear effects. Our technique opens the way for many new extensive quantitative comparisons between theory and experiments of wave turbulence.

  2. Vibrations of circular steel plates with damping

    E-Print Network [OSTI]

    Sheth, Prafulchandra Naginlal

    1967-01-01T23:59:59.000Z

    distributed. Usually, the prime objection to vibrations produced by machines is their effect on humans. These are high frequency vibrations that produce troublesome noise. Low frequency vibrations are often trans- mitted and these may damage nearby... materials used with fans, motors, engines, presses, turbines and similar machines. Byars (1)* studied vibrations of a circular plate on three supports for node patterns, amplitudes and frequencies. Ballentine (2) investigated the vibrations of circular...

  3. Characterizing detonator output using dynamic witness plates

    SciTech Connect (OSTI)

    Murphy, Michael John [Los Alamos National Laboratory; Adrian, Ronald J [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    A sub-microsecond, time-resolved micro-particle-image velocimetry (PIV) system is developed to investigate the output of explosive detonators. Detonator output is directed into a transparent solid that serves as a dynamic witness plate and instantaneous shock and material velocities are measured in a two-dimensional plane cutting through the shock wave as it propagates through the solid. For the case of unloaded initiators (e.g. exploding bridge wires, exploding foil initiators, etc.) the witness plate serves as a surrogate for the explosive material that would normally be detonated. The velocity-field measurements quantify the velocity of the shocked material and visualize the geometry of the shocked region. Furthermore, the time-evolution of the velocity-field can be measured at intervals as small as 10 ns using the PIV system. Current experimental results of unloaded exploding bridge wire output in polydimethylsiloxane (PDMS) witness plates demonstrate 20 MHz velocity-field sampling just 300 ns after initiation of the wire.

  4. Particle Transport in Parallel-Plate Reactors

    SciTech Connect (OSTI)

    Rader, D.J.; Geller, A.S.

    1999-08-01T23:59:59.000Z

    A major cause of semiconductor yield degradation is contaminant particles that deposit on wafers while they reside in processing tools during integrated circuit manufacturing. This report presents numerical models for assessing particle transport and deposition in a parallel-plate geometry characteristic of a wide range of single-wafer processing tools: uniform downward flow exiting a perforated-plate showerhead separated by a gap from a circular wafer resting on a parallel susceptor. Particles are assumed to originate either upstream of the showerhead or from a specified position between the plates. The physical mechanisms controlling particle deposition and transport (inertia, diffusion, fluid drag, and external forces) are reviewed, with an emphasis on conditions encountered in semiconductor process tools (i.e., sub-atmospheric pressures and submicron particles). Isothermal flow is assumed, although small temperature differences are allowed to drive particle thermophoresis. Numerical solutions of the flow field are presented which agree with an analytic, creeping-flow expression for Re < 4. Deposition is quantified by use of a particle collection efficiency, which is defined as the fraction of particles in the reactor that deposit on the wafer. Analytic expressions for collection efficiency are presented for the limiting case where external forces control deposition (i.e., neglecting particle diffusion and inertia). Deposition from simultaneous particle diffusion and external forces is analyzed by an Eulerian formulation; for creeping flow and particles released from a planar trap, the analysis yields an analytic, integral expression for particle deposition based on process and particle properties. Deposition from simultaneous particle inertia and external forces is analyzed by a Lagrangian formulation, which can describe inertia-enhanced deposition resulting from particle acceleration in the showerhead. An approximate analytic expression is derived for particle velocity at the showerhead exit as a function of showerhead geometry, flow rate, and gas and particle properties. The particle showerhead-exit velocity is next used as an initial condition for particle transport between the plates to determine whether the particle deposits on the wafer, as a function of shower-head-exit particle velocity, the plate separation, flow rate, and gas and particle properties. Based on the numerical analysis, recommendations of best practices are presented that should help tool operators and designers reduce particle deposition in real tools. These guidelines are not intended to replace detailed calculations, but to provide the user with a general feel for inherently-clean practices.

  5. Casimir interaction energies for magneto-electric ?-function plates

    E-Print Network [OSTI]

    Kimball A. Milton; Prachi Parashar; Martin Schaden; K. V. Shajesh

    2013-02-01T23:59:59.000Z

    We present boundary conditions for the electromagnetic fields on a \\delta-function plate, having both electric and magnetic properties, sandwiched between two magneto-electric semi-infinite half spaces. The optical properties for an isolated \\delta-function plate are shown to be independent of the longitudinal material properties of the plate. The Casimir-Polder energy between an isotropically polarizable atom and a magneto-electric \\delta-function plate is attractive for a purely electric \\delta-function plate, repulsive for a purely magnetic \\delta-function plate, and vanishes for the simultaneous perfect conductor limit of both electric and magnetic properties of the \\delta-function plate. The interaction energy between two identical \\delta-function plates is always attractive. It can be attractive or repulsive when the plates have electric and magnetic properties interchanged and reproduces Boyer's result for the interaction energy between perfectly conducting electric and magnetic plates. The change in the Casimir-Polder energy in the presence of a \\delta-function plate on a magneto-electric substrate is substantial when the substrate is a weak dielectric.

  6. Upper Snake Provincial Assessment May 2004 APPENDIX 4-1--UPPER SNAKE PROVINCE PROJECT INVENTORY

    E-Print Network [OSTI]

    Upper Snake Provincial Assessment May 2004 1 APPENDIX 4-1--UPPER SNAKE PROVINCE PROJECT INVENTORY The purpose of the project inventory is to provide a generalized picture of the types of fish and wildlife team participants through the project inventory website or through direct submission. Additional

  7. Materials selection for the US INTOR divertor collector plate

    SciTech Connect (OSTI)

    Mattas, R.F.; Misra, B.; Smith, D.L.; Morgan, G.D.; Delaney, M.; Gold, R.

    1981-01-01T23:59:59.000Z

    The divertor collector plate in the INTOR reactor will be subjected to high heat, particle, and neutron fluxes, making it the most severely damaged torus component. The collector plate is composed of a protection plate, which is directly exposed to the particle flux, and a heat sink which provides support for the protection plate and carries the water coolant. The high-Z refractory metals have been considered for use as the protection plate material, and austenitic stainless steels and copper alloys have been considered as the heat sink material. Tungsten and Type 316 stainless steels have been selected for the protection plate and heat sink, respectively. The protection plate has a sputtering lifetime of 1.75 y at a 50% duty factor, while the heat sink is expected to last the lifetime of the reactor.

  8. A novel plating process for microencapsulating metal hydrides

    SciTech Connect (OSTI)

    Law, H.H.; Vyas, B.; Zahurak, S.M.; Kammlott, G.W. [AT and T Bell Labs., Murray Hill, NJ (United States)

    1996-08-01T23:59:59.000Z

    One approach to increasing the lifetime of the metal hydride electrode has been the use of conventional electroless plating to produce a coating of copper or nickel on the surface of the metal hydride powders. In this paper, a novel method for microencapsulating the active electrode powders is presented. This new plating technique takes advantage of the reducing power of hydrogen already stored inside the metal hydride to plate a variety of metals onto metal hydride materials. This method greatly simplifies electroless plating for these powders, eliminating the need for stabilizers and additives typically required for conventional electroless plating solutions. Metals that can be electrolessly plated with stored hydrogen have been identified based on thermodynamic considerations. Experimentally, micrometers thick coatings of copper, silver, and nickel have been plated on several metal hydrides.

  9. Upper Mahiao Binary GEPP | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga, IndianaTurtleCooperativeCROSS-VALIDATION OF SWERA'sUpperUpperMahiao

  10. The Upper Atmosphere of HD17156b

    E-Print Network [OSTI]

    T. T. Koskinen; A. D. Aylward; S. Miller

    2008-11-28T23:59:59.000Z

    HD17156b is a newly-found transiting extrasolar giant planet (EGP) that orbits its G-type host star in a highly eccentric orbit (e~0.67) with an orbital semi-major axis of 0.16 AU. Its period, 21.2 Earth days, is the longest among the known transiting planets. The atmosphere of the planet undergoes a 27-fold variation in stellar irradiation during each orbit, making it an interesting subject for atmospheric modelling. We have used a three-dimensional model of the upper atmosphere and ionosphere for extrasolar gas giants in order to simulate the progress of HD17156b along its eccentric orbit. Here we present the results of these simulations and discuss the stability, circulation, and composition in its upper atmosphere. Contrary to the well-known transiting planet HD209458b, we find that the atmosphere of HD17156b is unlikely to escape hydrodynamically at any point along the orbit, even if the upper atmosphere is almost entirely composed of atomic hydrogen and H+, and infrared cooling by H3+ ions is negligible. The nature of the upper atmosphere is sensitive to to the composition of the thermosphere, and in particular to the mixing ratio of H2, as the availability of H2 regulates radiative cooling. In light of different simulations we make specific predictions about the thermosphere-ionosphere system of HD17156b that can potentially be verified by observations.

  11. Upper bounds for Steklov eigenvalues on surfaces

    E-Print Network [OSTI]

    Girouard, Alexandre

    2012-01-01T23:59:59.000Z

    We give explicit isoperimetric upper bounds for all Steklov eigenvalues of a compact orientable surface with boundary, in terms of the genus, the length of the boundary, and the number of boundary components. Our estimates generalize a recent result of Fraser-Schoen, as well as the classical inequalites obtained by Hersch-Payne-Schiffer, whose approach is used in the present paper.

  12. POSTGRADUATE Upper Level, Otto Beit Building

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    FUNDING YOUR POSTGRADUATE STUDIES AT UCT Upper Level, Otto Beit Building University Avenue North, the Postgraduate Funding Office and Postgraduate Centre were established at the University of Cape Town to provide apply for funding from both the University and from as many other sources of support as possible

  13. Draft Management Plan Upper Snake Province

    E-Print Network [OSTI]

    .......................................................................................4-5 Consistency with Idaho's Water Quality Management Plan...........................4-5 303(dDraft Management Plan Upper Snake Province Submitted To The Northwest Power and Conservation Quality Anti-Degradation Policy (39-3603) ............................................4-8 ESA and CWA

  14. Aspects of electroless nickel plating on molybdenum

    SciTech Connect (OSTI)

    Mikkola, R.D.; Daugherty, C.E.; Harris, G.E.; Neff, W.A.; Owens, W.W.

    1984-07-01T23:59:59.000Z

    A process for depositing an adherent coating of an electroless nickel-phosphorus alloy on molybdenum was developed. The required pretreatment processes included an anodic etch in a chromic acid-nitric acid solution, an anodic etch in a phosphonic acid solution, and an oxide stripping step in a chromic acid-nitric acid solution. Initiation of the electroless nickel plating was accomplished through a series of strikes in the nickel bath. Scale up from laboratory parts to large components involved optimization of parameters such as pretreat time, current density, anode to cathode ratio and strike time.

  15. Numerical analysis of laminar fluid flow and heat transfer in a parallel plate channel with normally in-line positioned plates

    E-Print Network [OSTI]

    McMath, John Grady

    1991-01-01T23:59:59.000Z

    numbers or thicker plates produced larger zones of recirculation. An increase in plate thickness caused a, significant increase in pressure drop without an appreciable increase in heat transfer Pang et al. (1990) used a, rrays of plates which were...

  16. C6 plate puncture testing report.

    SciTech Connect (OSTI)

    Vangoethem, Douglas J.; Cordova, Theresa Elena; Reu, Phillip L.

    2013-04-01T23:59:59.000Z

    There are numerous scenarios where critical systems could be subject to penetration by projectiles or fixed objects (e.g., collision, natural disaster, act of terrorism, etc.). It is desired to use computational models to examine these scenarios and make risk-informed decisions; however, modeling of material failure is an active area of research, and new models must be validated with experimental data. The purpose of this report is to document the experimental work performed from FY07 through FY08 on the Campaign Six Plate Puncture project. The goal of this project was to acquire experimental data on the puncture and penetration of metal plates for use in model validation. Of particular interest is the PLH failure model also known as the multilinear line segment model. A significant amount of data that will be useful for the verification and validation of computational models of ductile failure were collected during this project were collected and documented herein; however, much more work remains to be performed, collecting additional experimental data that will further the task of model verification.

  17. Elastocapillary coalescence of plates and pillars

    E-Print Network [OSTI]

    Zhiyan Wei; Tobias Schneider; Jungchul Kim; Ho-Young Kim; Joanna Aizenberg; L. Mahadevan

    2014-08-04T23:59:59.000Z

    When a fluid-immersed array of lamellae or filaments that is attached to a substrate is dried, evaporation leads to the formation of menisci on the tips of the plates or pillars that bring them together. Similarly, when hair dries it clumps together due to capillary forces induced by the liquid menisci between the flexible hairs. Building on prior experimental observations, we use a combination of theory and computation to understand the nature of this instability and its evolution in both the two-dimensional and three-dimensional setting of the problem. For the case of lamellae, we explicitly derive the interaction torques based on the relevant physical parameters. A Bloch-wave analysis for our periodic mechanical system captures the critical volume of the liquid and the 2-plate-collapse eigenmode at the onset of instability. We study the evolution of clusters and their arrest using numerical simulations to explain the hierarchical cluster formation and characterize the sensitive dependence of the final structures on the initial perturbations. We then generalize our analysis to treat the problem of pillar collapse in 3D, where the fluid domain is completely connected and the interface is a surface with the uniform mean curvature. Our theory and simulations capture the salient features of both previous experimental observations and our own in terms of the key parameters that can be used to control the kinetics of the process.

  18. Catalytic bipolar interconnection plate for use in a fuel cell

    DOE Patents [OSTI]

    Lessing, P.A.

    1996-03-05T23:59:59.000Z

    A bipolar interconnection plate is described for use between adjacent fuel cell units in a stacked fuel cell assembly. Each plate is manufactured from an intermetallic composition, examples of which include NiAl or Ni{sub 3}Al which can catalyze steam reforming of hydrocarbons. Distributed within the intermetallic structure of the plate is a ceramic filler composition. The plate includes a first side with gas flow channels therein and a second side with fuel flow channels therein. A protective coating is applied to the first side, with exemplary coatings including strontium-doped or calcium-doped lanthanum chromite. To produce the plate, Ni and Al powders are combined with the filler composition, compressed at a pressure of about 10,000--30,000 psi, and heated to about 600--1000 C. The coating is then applied to the first side of the completed plate using liquid injection plasma deposition or other deposition techniques. 6 figs.

  19. Adapter plate assembly for adjustable mounting of objects

    DOE Patents [OSTI]

    Blackburn, R.S.

    1986-05-02T23:59:59.000Z

    An adapter plate and two locking discs are together affixed to an optic table with machine screws or bolts threaded into a fixed array of internally threaded holes provided in the table surface. The adapter plate preferably has two, and preferably parallel, elongated locating slots each freely receiving a portion of one of the locking discs for secure affixation of the adapter plate to the optic table. A plurality of threaded apertures provided in the adapter plate are available to attach optical mounts or other devices onto the adapter plate in an orientation not limited by the disposition of the array of threaded holes in the table surface. An axially aligned but radially offset hole through each locking disc receives a screw that tightens onto the table, such that prior to tightening of the screw the locking disc may rotate and translate within each locating slot of the adapter plate for maximum flexibility of the orientation thereof.

  20. Adapter plate assembly for adjustable mounting of objects

    DOE Patents [OSTI]

    Blackburn, Robert S. (Albuquerque, NM)

    1987-01-01T23:59:59.000Z

    An adapter plate and two locking discs are together affixed to an optic table with machine screws or bolts threaded into a fixed array of internally threaded holes provided in the table surface. The adapter plate preferably has two, and preferably parallel, elongated locating slots each freely receiving a portion of one of the locking discs for secure affixation of the adapter plate to the optic table. A plurality of threaded apertures provided in the adapter plate are available to attach optical mounts or other devices onto the adapter plate in an orientation not limited by the disposition of the array of threaded holes in the table surface. An axially aligned but radially offset hole through each locking disc receives a screw that tightens onto the table, such that prior to tightening of the screw the locking disc may rotate and translate within each locating slot of the adapter plate for maximum flexibility of the orientation thereof.

  1. Calibration and equivalency analysis of image plate scanners

    SciTech Connect (OSTI)

    Williams, G. Jackson, E-mail: williams270@llnl.gov; Maddox, Brian R.; Chen, Hui [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States); Kojima, Sadaoki [Institute of Laser Engineering, Osaka University, Yamada-oka, 2-6, Suita, Osaka 565-0871 (Japan); Millecchia, Matthew [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623 (United States)

    2014-11-15T23:59:59.000Z

    A universal procedure was developed to calibrate image plate scanners using radioisotope sources. Techniques to calibrate scanners and sources, as well as cross-calibrate scanner models, are described to convert image plate dosage into physical units. This allows for the direct comparison of quantitative data between any facility and scanner. An empirical relation was also derived to establish sensitivity response settings for arbitrary gain settings. In practice, these methods may be extended to any image plate scanning system.

  2. Production design for plate products in the steel industry

    E-Print Network [OSTI]

    Sanjeeb Dash

    2007-04-05T23:59:59.000Z

    Apr 5, 2007 ... Abstract: We describe an optimization tool for a multistage production process for rectangular steel plates. The problem we solve yields a...

  3. The driving force of plate tectonics evaluated in spherical coordinates

    E-Print Network [OSTI]

    Donahue, John Michael

    1985-01-01T23:59:59.000Z

    to interaction with the Pacific plate that is large compared to the slab-pull of the relatively young subducting lithosphere. TABLE OF CONTENTS CHAPTER Page I INTRODUCTION Plate models. Slab-pull and Ridge~ush. 1 2 5 II METHOD III DATA . 18... Discussion. The Nance Plate The Juan de Fuc a Plate. IV DISCUSSION . 18 . 19 . 24 . 29 REFERENCES. APPENDIX. . 34 . 39 LIST OF FIGURES Figure Page 1 Thermal boundary model with cooling from above. 2 The ridge-push model boundary conditions...

  4. Pattern Alteration: Upper Arm Sleeve Width

    E-Print Network [OSTI]

    2006-08-04T23:59:59.000Z

    in the upper arm are unbecoming and may form excess vertical folds (Fig. 2). The Personal Measurement Chart (line 10) shows how much to alter. Figure 1. Tight sleeve Figure 2. Loose sleeve 2... ................................................................................................................................................................................. Figure 3. Tissue paper Figure 4. Sleeve Sleeve Figure 5. Sleeve Sleeve Figure 6. Figure 7. Sleeve Figure 8. Spread Lap Spread Lap Cut away Tissue Tissue Basic and raglan style garments 1. Trace the cutting line of the set-in sleeve cap on tissue...

  5. The effects of plate thickness and perforation diameter on the supporting vapor velocity for a perforated plate fractionating column

    E-Print Network [OSTI]

    Cottle, John Ernest

    1948-01-01T23:59:59.000Z

    of the question. Other difficulties encountered. in the use of large packed columns are the tendeno1es of the liquid to channel through the paoking and. of the packing to break down under high operating temperatures. Hubble cap plate columns are the most...- oulty in a perforated. plate column than in any other types' and. should oleaning 'be necessary it could, be aocomplished much more easily. It is also believed that high plate efficienoies could be o'btained with per- i'orated plates 'beoause...

  6. Perspective on plating for precision finishing

    SciTech Connect (OSTI)

    Dini, J.W.

    1991-04-01T23:59:59.000Z

    This paper is intended as an overview on platings for precision finishing operations. After a brief review of the two processes (polishing and precision machining) by which a coating on a part can be converted to a precision surface, the coatings which work successfully in these applications will be discussed. Then adhesion and stress aspects of deposits will be covered. Electroless nickel, which is a particularly attractive coating for precision finishing applications, will be discussed in some detail, from its early years as the Kanigen'' process to the present. Since microstructural changes in deposits are important for precision parts, this aspect will be covered for electroless nickel, copper and silver deposits. Lastly, some words will be directed at potential future electrodeposited coatings including nickel-phosphorus alloys, and various silver alloys. 41 refs., 16 figs., 1 tab.

  7. Sub-Seafloor Carbon Dioxide Storage Potential on the Juan de Fuca Plate, Western North America

    SciTech Connect (OSTI)

    Jerry Fairley; Robert Podgorney

    2012-11-01T23:59:59.000Z

    The Juan de Fuca plate, off the western coast of North America, has been suggested as a site for geological sequestration of waste carbon dioxide because of its many attractive characteristics (high permeability, large storage capacity, reactive rock types). Here we model CO2 injection into fractured basalts comprising the upper several hundred meters of the sub-seafloor basalt reservoir, overlain with low-permeability sediments and a large saline water column, to examine the feasibility of this reservoir for CO2 storage. Our simulations indicate that the sub-seafloor basalts of the Juan de Fuca plate may be an excellent CO2 storage candidate, as multiple trapping mechanisms (hydrodynamic, density inversions, and mineralization) act to keep the CO2 isolated from terrestrial environments. Questions remain about the lateral extent and connectivity of the high permeability basalts; however, the lack of wells or boreholes and thick sediment cover maximize storage potential while minimizing potential leakage pathways. Although promising, more study is needed to determine the economic viability of this option.

  8. Geothermal Casimir phenomena for the sphere-plate and cylinder-plate configurations

    E-Print Network [OSTI]

    Weber, Alexej

    2010-01-01T23:59:59.000Z

    We investigate the nontrivial interplay between geometry and temperature in the Casimir effect for the sphere-plate and cylinder-plate configurations. At low temperature, the thermal contribution to the Casimir force is dominated by this interplay, implying that standard approximation techniques such as the PFA are inapplicable even in the limit of small surface separation. Thermal fluctuations on scales of the thermal wavelength lead to a delocalization of the thermal force density at low temperatures. As a consequence, the temperature dependence strongly differs from naive expectations. Most prominently, thermal forces can develop non-monotonic behavior below a critical temperature. We perform a comprehensive study of such geothermal phenomena in these Casimir geometries, using analytical and numerical worldline techniques for Dirichlet scalar fluctuations.

  9. Geothermal Casimir phenomena for the sphere-plate and cylinder-plate configurations

    E-Print Network [OSTI]

    Alexej Weber; Holger Gies

    2010-03-17T23:59:59.000Z

    We investigate the nontrivial interplay between geometry and temperature in the Casimir effect for the sphere-plate and cylinder-plate configurations. At low temperature, the thermal contribution to the Casimir force is dominated by this interplay, implying that standard approximation techniques such as the PFA are inapplicable even in the limit of small surface separation. Thermal fluctuations on scales of the thermal wavelength lead to a delocalization of the thermal force density at low temperatures. As a consequence, the temperature dependence strongly differs from naive expectations. Most prominently, thermal forces can develop non-monotonic behavior below a critical temperature. We perform a comprehensive study of such geothermal phenomena in these Casimir geometries, using analytical and numerical worldline techniques for Dirichlet scalar fluctuations.

  10. An Integrated Geophysical Analysis Of The Upper Crust Of The...

    Open Energy Info (EERE)

    Of The Upper Crust Of The Southern Kenya Rift Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: An Integrated Geophysical Analysis Of The Upper...

  11. Vacuum fusion bonded glass plates having microstructures thereon

    DOE Patents [OSTI]

    Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

    2001-01-01T23:59:59.000Z

    An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

  12. Denaturing Urea PAGE -Large Gel Preparation of Glass Plates

    E-Print Network [OSTI]

    Aris, John P.

    tube. Mix. Pour ~2.5 mls on inside surface of long glass plate. Spread and polish with Kimwipes. Repeat gel solution down middle of glass plates with 25 ml pipette. Do not trap bubbles in gel. Adjust flow rate with tilt of gel. Place gel close to horizontal (top end slightly elevated). Insert comb. Do

  13. Quantitative Imaging of Corrosion in Plates by Eddy Current Methods

    E-Print Network [OSTI]

    Santosa, Fadil

    Quantitative Imaging of Corrosion in Plates by Eddy Current Methods Bruno Luong \\Lambda and Fadil the problem of determining material loss due to cor­ rosion in a plate. Eddy current data are collected on one the relationship between eddy current loop impedance change with the loss profile. In this context, we show

  14. Dynamic optimization of a plate reactor start-up

    E-Print Network [OSTI]

    of a plate reactor #12;Safety conditions for ignition and conversion Avoid regions in the state-space, where reactor #12;Details of the NMPC implementation Cost function = tp t0 (x(t), u(t), u(t), r(t))dt =1 + 1 2Dynamic optimization of a plate reactor start-up Staffan Haugwitz, Per Hagander and John Bagterp

  15. STATIC ANALYSIS OF SANDWICH PLATES BY FINITE ELEMENTS

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    STATIC ANALYSIS OF SANDWICH PLATES BY FINITE ELEMENTS V. MANET, W.-S. HAN AND A. VAUTRIN Ecole des continuity at hal-00663233,version1-26Jan2012 #12;Static analysis of sandwich plates by finite elements 3 and are presented in this paper. 2. Hybrid sandwich finite elements In this section, we present the development

  16. Heterogeneous cavitation in liquid helium 4 near a glass plate

    E-Print Network [OSTI]

    Caupin, Frédéric

    Heterogeneous cavitation in liquid helium 4 near a glass plate X. Chavanne, S. Balibar and F wave to study cavitation, i.e. the nucleation of bubbles, in liquid helium 4 near a clean glass plate and threshold pressures in the range 0 to -3 bar, significantly less negative than for homogeneous cavitation

  17. GLOBAL PLATE MOTION FRAMES: TOWARD A UNIFIED MODEL

    E-Print Network [OSTI]

    Mller, Dietmar

    , transform faults, and seafloor spreading, cementing the plate tectonic paradigm. However, so and the mapping of reconstructed large igneous provinces to coremantle boundary topography, we argue shell of the Earth, and their past movements may be traced using geological data. Plate tectonics

  18. Impact of graphene coating on the atom-plate interaction

    E-Print Network [OSTI]

    G. L. Klimchitskaya; V. M. Mostepanenko

    2014-06-23T23:59:59.000Z

    Using the recently proposed quantum electrodynamical formalism, we calculate the Casimir-Polder free energies and forces between the ground state atoms of Rb, Na, Cs and He${}^{\\ast}$ and the plates made of Au, Si, sapphire and fused silica coated with a graphene sheet. It is shown that the graphene coating has no effect on the Casimir-Polder interaction for metallic plates, but influences significantly for plates made of dielectric materials. The influence of graphene coating increases with decreasing static dielectric permittivity of the plate material and the characteristic frequency of an atomic dynamic polarizability. Simple analytic expressions for the classical limit of the Casimir-Polder free energy and force between an atom and a graphene-coated plate are obtained. From the comparison with the results of numerical computations, the application region of these expressions is determined.

  19. Sedimentary parameters of upper Barataria Bay, Louisiana

    E-Print Network [OSTI]

    Siegert, Rudolf B

    1961-01-01T23:59:59.000Z

    SEDIMENTARY PARAMETERS OF UPPER BARATARIA BAY, LOUISIANA A Thesis Rudolf Bernhardt Siegert Submitted to the Graduate School of the Agricultural snd Mechanical College of Texas in partial fulfillment of the reGulremente for the d. agree... of MASTER OF SCIENCE August 1961 Ma)or Sub)ect GeologP SEDYIKNTARY PARAI'ZTEHS OF DT'PBR BARATARIA BAY, LOUISIANA A Thesis By Rudolf Bernhardt Siegert Approved as to style and content by: Chairman of C 'tice Bea of Department or Student Advisor...

  20. Effect of polyurea on dynamic response and fracture resistance of steel plates under impulsive loads

    E-Print Network [OSTI]

    Amini, Mahmoud Reza

    2007-01-01T23:59:59.000Z

    on the dynamic response of steel plates, 2006 SEM AnnualPenetration protection of steel plates with polyurea layer,the post-failure motion of steel plates subjected to blast

  1. Perforated plates for cryogenic regenerators and method of fabrication

    DOE Patents [OSTI]

    Hendricks, J.B.

    1994-03-29T23:59:59.000Z

    Perforated plates having very small holes with a uniform diameter throughout the plate thickness are prepared by a [open quotes]wire drawing[close quotes] process in which a billet of sacrificial metal is disposed in an extrusion can of the plate metal, and the can is extruded and restacked repeatedly, converting the billet to a wire of the desired hole diameter. At final size, the rod is then sliced into wafers, and the wires are removed by selective etching. This process is useful for plate metals of interest for high performance regenerator applications, in particular, copper, niobium, molybdenum, erbium, and other rare earth metals. Er[sub 3]Ni, which has uniquely favorable thermophysical properties for such applications, may be incorporated in regions of the plates by providing extrusion cans containing erbium and nickel metals in a stacked array with extrusion cans of the plate metal, which may be copper. The array is heated to convert the erbium and nickel metals to Er[sub 3]Ni. Perforated plates having two sizes of perforations, one of which is small enough for storage of helium, are also disclosed. 10 figures.

  2. Perforated plates for cryogenic regenerators and method of fabrication

    DOE Patents [OSTI]

    Hendricks, John B. (Huntsville, AL)

    1994-01-01T23:59:59.000Z

    Perforated plates (10) having very small holes (14) with a uniform diameter throughout the plate thickness are prepared by a "wire drawing" process in which a billet of sacrificial metal is disposed in an extrusion can of the plate metal, and the can is extruded and restacked repeatedly, converting the billet to a wire of the desired hole diameter. At final size, the rod is then sliced into wafers, and the wires are removed by selective etching. This process is useful for plate metals of interest for high performance regenerator applications, in particular, copper, niobium, molybdenum, erbium, and other rare earth metals. Er.sub.3 Ni, which has uniquely favorable thermophysical properties for such applications, may be incorporated in regions of the plates by providing extrusion cans (20) containing erbium and nickel metals in a stacked array (53) with extrusion cans of the plate metal, which may be copper. The array is heated to convert the erbium and nickel metals to Er.sub.3 Ni. Perforated plates having two sizes of perforations (38, 42), one of which is small enough for storage of helium, are also disclosed.

  3. Regenerate metal-plating baths to cut waste and save

    SciTech Connect (OSTI)

    NONE

    1995-03-01T23:59:59.000Z

    During electrode-based metal plating of equipment components, the formation of an electrical field causes metal deposits to be thicker at edges and seams, and thinner on flat surfaces. And, electrode-based methods consume large amounts of energy. Electroless-nickel (EN) -- or autocatalytic -- plating systems were pioneered in the 1940s to solve these problems. EN plating produces a more uniform coating, irrespective of the complexity of the part, and it consumes less electricity, since to electric current is required during plating. Plating in an EN system results from a chemical reaction between nickel in the bath and the substrate of the equipment component. The downside of electroless plating, however, is the limited life of the nickel bath, and the large volume of metal waste produced by bath disposal. Ionsep Corp. (Wilmington, Del.) has developed an electrodialytic system that continuously reforms the EN plating baths, to give them longer life. Its patented system has been successfully laboratory tested in a 1-ft{sup 2} cell, and the firm recently won a $250,000 grant from the US Dept. of Energy (Washington, D.C.) and Environmental Protection Agency (Washington, D.C.), to design and engineer a commercial-scale version of the system.

  4. OxfordRoadOxfordRoadOxfordRoad UpperBrookStreetUpperBrookStreet

    E-Print Network [OSTI]

    Lane Platt Lane UpperLloydStreet HartLane Claremont Road Mauldeth RoadMauldeth Road West Albert Road Coupland Chapel 43. Roby URC 44. Quadria Jilamia Islamic Centre 45. Platt Lane Methodist Church 46. Holy Trinity, Platt Church of England 47. Platt Fields Park, open space with a lake. 48. Allen Hall 49. The Islah

  5. Conductivity fuel cell collector plate and method of fabrication

    DOE Patents [OSTI]

    Braun, James C. (Juno Beach, FL)

    2002-01-01T23:59:59.000Z

    An improved method of manufacturing a PEM fuel cell collector plate is disclosed. During molding a highly conductive polymer composite is formed having a relatively high polymer concentration along its external surfaces. After molding the polymer rich layer is removed from the land areas by machining, grinding or similar process. This layer removal results in increased overall conductivity of the molded collector plate. The polymer rich surface remains in the collector plate channels, providing increased mechanical strength and other benefits to the channels. The improved method also permits greater mold cavity thickness providing a number of advantages during the molding process.

  6. Curved plate damper test and simulations with snubbers, through- flow, and flexible plate effects

    E-Print Network [OSTI]

    Gadangi, Ravindra Kumar

    1992-01-01T23:59:59.000Z

    Fects of variation of snubber porosity 4. 4 Effects of variation of LN2 supply pressure 4. 5 EfFects of variation of damper plate thickness 4. 6 EfFects of variation of' frequency Page 15 38 39 53 55 70 70 72 74 4. 7 Comparison of damping... Page 2. 2 2. 3 2. 4 2, 5 2. 6 2. 7 2. 8 2. 9 2. 10 2. 11 2. 12 2. 13 2. 14 2. 15 2. 16 2. 17 3. 1 3. 4 3. 5 3. 6 Photo of the damper rig Rotor shaft with dimensions and probe locations Rotor-damper-bearing assembly Section...

  7. Oxidation studies of CrAlON nanolayered coatings on steel plates...

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

    coatings on steel plates. Abstract: The requirements of low cost and high-temperature corrosion resistance for bipolar interconnect plates in solid oxide fuel cell stacks have...

  8. Operational Effectiveness in Use fo BAS

    E-Print Network [OSTI]

    Bobker, M.; Joseph, M.; Ascazubi, M.; Brown, T.; Thorpe, K.; Essman, J.

    2013-01-01T23:59:59.000Z

    ?to??suck?out?the?data?? ? Database?Feudalism? ? proliferation?without? shared?standard ? Re?creating?the?inter? operability?situation ? More?complex??optimizing??control? routines?? challenges?for?the?human? operators ICEBO?2013???????????????????????????CITY...

  9. Understanding nuclei in the upper sd - shell

    SciTech Connect (OSTI)

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

    2014-08-14T23:59:59.000Z

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

  10. anchor plates: Topics by E-print Network

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

    influence and the alignment is determined by the structure of the interface between the brush and the pure solvent instead. Harald Lange; Friederike Schmid 2002-05-15 40 Plate...

  11. Nonlinear analysis of smart composite plate and shell structures

    E-Print Network [OSTI]

    Lee, Seung Joon

    2005-08-29T23:59:59.000Z

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

  12. DAMAGE ASSESSMENT OF COMPOSITE PLATE STRUCTURES WITH UNCERTAINTY

    E-Print Network [OSTI]

    Boyer, Edmond

    DAMAGE ASSESSMENT OF COMPOSITE PLATE STRUCTURES WITH UNCERTAINTY Chandrashekhar M.* , Ranjan Uncertainties associated with a structural model and measured vibration data may lead to unreliable damage that material uncertainties in composite structures cause considerable problem in damage assessment which can

  13. Method for regeneration of electroless nickel plating solution

    DOE Patents [OSTI]

    Eisenmann, Erhard T. (5423 Vista Sandia, NE., Albuquerque, NM 87111)

    1997-01-01T23:59:59.000Z

    An electroless nickel(EN)/hypophosphite plating bath is provided employing acetic acid/acetate as a buffer and which is, as a result, capable of perpetual regeneration while avoiding the production of hazardous waste. A regeneration process is provided to process the spent EN plating bath solution. A concentrated starter and replenishment solution is provided for ease of operation of the plating bath. The regeneration process employs a chelating ion exchange system to remove nickel cations from spent EN plating solution. Phosphites are then removed from the solution by precipitation. The nickel cations are removed from the ion exchange system by elution with hypophosphorous acid and the nickel concentration of the eluate adjusted by addition of nickel salt. The treated solution and adjusted eluate are combined, stabilizer added, and the volume of resulting solution reduced by evaporation to form the bath starter and replenishing solution.

  14. Method for regeneration of electroless nickel plating solution

    DOE Patents [OSTI]

    Eisenmann, E.T.

    1997-03-11T23:59:59.000Z

    An electroless nickel(EN)/hypophosphite plating bath is provided employing acetic acid/acetate as a buffer and which is, as a result, capable of perpetual regeneration while avoiding the production of hazardous waste. A regeneration process is provided to process the spent EN plating bath solution. A concentrated starter and replenishment solution is provided for ease of operation of the plating bath. The regeneration process employs a chelating ion exchange system to remove nickel cations from spent EN plating solution. Phosphites are then removed from the solution by precipitation. The nickel cations are removed from the ion exchange system by elution with hypophosphorus acid and the nickel concentration of the eluate adjusted by addition of nickel salt. The treated solution and adjusted eluate are combined, stabilizer added, and the volume of resulting solution reduced by evaporation to form the bath starter and replenishing solution. 1 fig.

  15. Next Generation Bipolar Plates for Automotive PEM Fuel Cells

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

    Bipolar Plates for Automotive PEM Fuel Cells (Topic 4) GrafTech International, Ltd. * Funding DOE Cost Share Recipient Cost Share TOTAL 2,325,943 581,486 2,907,429 80% 20% 100%...

  16. Melt generation in the Earth's mantle at Convergent Plate Margins

    E-Print Network [OSTI]

    Till, Christy B

    2011-01-01T23:59:59.000Z

    The five geologic studies presented in this thesis document how the recycling of tectonic plates at subduction zones has a profound effect on the melting behavior of the Earth's mantle. Two experimental studies (Chapters ...

  17. Impact perforation of monolithic polyethylene plates: projectile nose shape dependence

    E-Print Network [OSTI]

    Mohagheghian, I.; McShane, G. J.; Stronge, W. J.

    2015-02-12T23:59:59.000Z

    . The perforation mechanisms and energy absorption of these PE plates are contrasted with those of thin aluminium alloy targets that have the same total mass. UHMWPE outperforms these metallic targets for all three projectile nose shapes. Finally, the influence...

  18. Highly conductive, multi-layer composite precursor composition to fuel cell flow field plate or bipolar plate

    DOE Patents [OSTI]

    Jang, Bor Z. (Centerville, OH); Zhamu, Aruna (Centerville, OH); Guo, Jiusheng (Centerville, OH)

    2011-02-15T23:59:59.000Z

    This invention provides a moldable, multiple-layer composite composition, which is a precursor to an electrically conductive composite flow field plate or bipolar plate. In one preferred embodiment, the composition comprises a plurality of conductive sheets and a plurality of mixture layers of a curable resin and conductive fillers, wherein (A) each conductive sheet is attached to at least one resin-filler mixture layer; (B) at least one of the conductive sheets comprises flexible graphite; and (C) at least one resin-filler mixture layer comprises a thermosetting resin and conductive fillers with the fillers being present in a sufficient quantity to render the resulting flow field plate or bipolar plate electrically conductive with a conductivity no less than 100 S/cm and thickness-direction areal conductivity no less than 200 S/cm.sup.2.

  19. Crust and Upper Mantle P Wave Velocity Structure Beneath Valles...

    Open Energy Info (EERE)

    Crust and Upper Mantle P Wave Velocity Structure Beneath Valles Caldera, New Mexico- Results from the Jemez Teleseismic Tomography Experiment Jump to: navigation, search OpenEI...

  20. Upper crustal structure of an obliquely extending orogen, central...

    Open Energy Info (EERE)

    eastern California Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Upper crustal structure of an obliquely extending orogen, central...

  1. Retrovirus Infection Protocol Day 1 Plate packaging cells with construct at 50-75% confluence. After plating replace

    E-Print Network [OSTI]

    Shoubridge, Eric

    , depending on the viral titer, the virus stock with medium. Add polybrene to a final concentration of 4ug/mL from 4mg/mL stock (kept at 4o C). For a 6-well or 60mm plate use 1mL, for a 100mm plate use 4m infected with PA317-hygro use hygromycin B at 100 units/ml. Selection will usually take from 7-10 days

  2. Synthesis and Characterization of Nonbanded U-Nb Plate Material

    SciTech Connect (OSTI)

    R. E. Hackenberg, R. M Aikin, Jr., J. A. Balog, B. L. Bingham, R. Casey, A. Casteel, I. Cordova, R. Forsyth, F. G. Garcia, D. Guidry, D. L. Hammon, W. L. Hults, D. R. Korzekwa, A. M. Kelly, M. W. Kolby, K. A. Lao, J. C. Lashley, M. F. Lopez, R. McCabe, D. E. Nye, P. A. Papin, S. W. Quintana, J. L. Smith, D. F. Teter, D. J. Thoma, T. Tucker, P. K. Tubesing, R. R. Trujillo, C. J. Vigil, and H. M. Volz

    2007-01-22T23:59:59.000Z

    This report describes the synthesis and characterization of four plates, two each of U-5.5Nb and U-7.5Nb (nominal wt%) for aging studies described elsewhere. The plates were induction melted and cast into graphite molds that were unheated and {approx}0.5 inches thick to maximize the cooling rate and minimize large length-scale Nb segregation (banding). Microstructural images and electron microprobe traces observed after various processing stages, including casting, hot rolling, and homogenizing are documented. The as-cast microsegregation assumed the form of an isotropic cellular structure, with an amplitude of 3-15 wt% Nb and 40-50 micron-length scales. Subsequent thermomechanical processing was shown to be sufficient to attain Nb compositional homogeneity on local scales of hundreds of microns. The results of chemical analysis and other characterization methods are given. The principal impurity elements (of the 40+ elements measured) were carbon, boron, oxygen, tantalum, and iron. In all four plates, after homogenization, the Nb distribution across the entire plate cross-section showed minima at the plate faces and a broad maximum in the center, the differential being 0.5-0.7 wt% in U-7.5Nb and 0.2-0.5 wt% in U-5.5Nb. None of the impurity elements showed statistically significant variations between the center 50% of the plate volume vs the outer 25%. These plates were considered nonbanded and compositionally homogeneous for their proposed use because the required tensile, metallographic, and dilatometer specimens could be extracted from the fairly homogeneous center portion of the plate cross-section. Characterization of the phases and their transition temperatures by x-ray diffraction and dilatometry in rapidly quenched specimens from the final product confirmed that the microstructure of this plate material was suitable for the intended aging studies. The as-quenched tensile response from multiple specimens taken from each plate showed some variability, especially in the ultimate tensile strength and elongation to failure. In general, U-5.5Nb has higher strength and less ductility than U-7.5Nb, though both alloys exhibited the double yield behavior characteristic of banded U-6Nb.

  3. An elastic plate model for interseismic deformation in subduction Ravi V. S. Kanda1

    E-Print Network [OSTI]

    the subducting and overriding plates, as well as zero net steady state vertical offset between the two plates, 1983]. The BSM accomplishes this zero net strain in the overriding plate by parameterizing interseismic case of zero plate thickness, thereby providing an alternative motivation for the BSM. The ESPM also

  4. Ultrasonic measurement of the residual stresses in patch welded steel plates

    E-Print Network [OSTI]

    Junghans, Paul Gerard

    1994-01-01T23:59:59.000Z

    , structural steel plates. The two 1.2 in (48 in.) square plates were patch welded in the center to create a residual stress field; and subsequently, one of the plates was stress relieved. The LCR travel-time measurements on the plates not only differentiated...

  5. Ultrasonic measurement of the residual stresses in patch welded steel plates

    E-Print Network [OSTI]

    Junghans, Paul Gerard

    1994-01-01T23:59:59.000Z

    , structural steel plates. The two 1.2 in (48 in.) square plates were patch welded in the center to create a residual stress field; and subsequently, one of the plates was stress relieved. The LCR travel-time measurements on the plates not only differentiated...

  6. The response of clamped sandwich plates with metallic foam cores to simulated blast loading

    E-Print Network [OSTI]

    Fleck, Norman A.

    projectiles. The sandwich plates comprise AISI 304 stainless steel face sheets and aluminium alloy metal foam

  7. Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications

    E-Print Network [OSTI]

    x Nanofocusing of soft X-ray laser pulses with Fresnel zone plate and its applications 699220056 #12;#12;i keep the faith #12;ii 200 0.16 (Fresnel zone plate) X 100.3 ................................................ 37 40 #12;1 1.1 NA X X (Fresnel zone plate) X (Fresnel zone plate) X #12;2 1

  8. Apparatus for tensile testing plate-type ceramic specimens

    DOE Patents [OSTI]

    Liu, K.C.

    1993-08-24T23:59:59.000Z

    Apparatus is described for gripping a plate-type tensile specimen having generally T-shaped end regions in a dynamic tension fatigue testing apparatus comprising an annular housing having an open-ended elongated cavity therein, a plurality of hydraulic piston means supported by the housing in a spaced array about the cavity, and a specimen-supporting plate means overlying the piston means at one end of the elongated cavity and displaceable by said piston means in a longitudinal direction with respect to the longitudinal axis of the cavity, said apparatus for gripping a flat plate-type tensile specimen comprising: a pair of elongated pull rods each having oppositely disposed first and second end regions; a pair of mounting means carried by said plate means with each mounting means for pivotally attaching the first end region of each of said pull rods in a central region of said plate means for supporting said pair of elongated pull rods in a side-by-side relationship along a common longitudinal centerline within said cavity; recess means in the second end region of each of said pull rods in adjacently disposed surface regions thereof with said recess means facing one another and each adapted to receive one side of one of the generally T-shaped end regions of the plate-type tensile specimen; and load-bearing means positionable in each of said recess means and adapted to bear against a shoulder on each side of the generally T-shaped end region of the plate-type tensile specimen when a tensile loading is applied thereon.

  9. Upper bounds for multiphase composites in any dimension

    E-Print Network [OSTI]

    Luis Silvestre

    2010-10-12T23:59:59.000Z

    We prove a rigorous upper bound for the effective conductivity of an isotropic composite made of several isotropic components in any dimension. This upper bound coincides with the Hashin Shtrikman bound when the volume ratio of all phases but any two vanish.

  10. Low Cost PEM Fuel Cell Metal Bipolar Plates

    SciTech Connect (OSTI)

    Wang, Conghua [TreadStone Technologies, Inc.

    2013-05-30T23:59:59.000Z

    Bipolar plate is an important component in fuel cell stacks and accounts for more than 75% of stack weight and volume. The technology development of metal bipolar plates can effectively reduce the fuel cells stack weight and volume over 50%. The challenge is the metal plate corrosion protection at low cost for the broad commercial applications. This project is aimed to develop innovative technological solutions to overcome the corrosion barrier of low cost metal plates. The feasibility of has been demonstrated and patented (US Patent 7,309,540). The plan is to further reduce the cost, and scale up the technology. The project is built on three pillars: 1) robust experimental evidence demonstrating the feasibility of our technology, 2) a team that consists of industrial leaders in fuel cell stack application, design, and manufactures; 3) a low-risk, significant-milestone driven program that proves the feasibility of meeting program objectives The implementation of this project will reduce the fuel cell stack metal bipolar separator plate cost which accounts 15-21% of the overall stack cost. It will contribute to the market adoption of fuel cell technologies. In addition, this corrosion protection technology can be used similar energy devices, such as batteries and electrolyzers. Therefore, the success of the project will be benefit in broad markets.

  11. Fuel cell repeater unit including frame and separator plate

    DOE Patents [OSTI]

    Yamanis, Jean; Hawkes, Justin R; Chiapetta, Jr., Louis; Bird, Connie E; Sun, Ellen Y; Croteau, Paul F

    2013-11-05T23:59:59.000Z

    An example fuel cell repeater includes a separator plate and a frame establishing at least a portion of a flow path that is operative to communicate fuel to or from at least one fuel cell held by the frame relative to the separator plate. The flow path has a perimeter and any fuel within the perimeter flow across the at least one fuel cell in a first direction. The separator plate, the frame, or both establish at least one conduit positioned outside the flow path perimeter. The conduit is outside of the flow path perimeter and is configured to direct flow in a second, different direction. The conduit is fluidly coupled with the flow path.

  12. Laser-based characterization of nuclear fuel plates

    SciTech Connect (OSTI)

    Smith, James A.; Cottle, Dave L.; Rabin, Barry H. [Idaho National Laboratory, Fuel Performance and Design, P.O. Box 1625, Idaho Falls, Idaho, 83415-6188 (United States)

    2014-02-18T23:59:59.000Z

    Ensuring the integrity of fuel-clad and clad-clad bonding in nuclear fuels is important for safe reactor operation and assessment of fuel performance, yet the measurement of bond strengths in actual fuels has proved challenging. The laser shockwave technique (LST) originally developed to characterize structural adhesion in composites is being employed to characterize interface strength in a new type of plate fuel being developed at Idaho National Laboratory (INL). LST is a non-contact method that uses lasers for the generation and detection of large-amplitude acoustic waves and is well suited for application to both fresh and irradiated nuclear-fuel plates. This paper will report on initial characterization results obtained from fresh fuel plates manufactured by different processes, including hot isostatic pressing, friction stir welding, and hot rolling.

  13. Global coupling at 660 km is proposed to explain plate tectonics and the generation of the earth's magnetic field

    E-Print Network [OSTI]

    Jozsef Garai

    2007-09-10T23:59:59.000Z

    The presence of low viscosity layers in the mantle is supported by line of geological and geophysical observations. Recent high pressure and temperature investigations indicated that partial carbonate melt should exist at the bottom of the lithosphere and at 660 km. The presence of few percent carbonate melt reduces the viscosity by several order of magnitude. The globally existing 660 km very low viscosity layer allows the development of differential rotation between the upper and lower mantle. This differential rotation between the 660 km outer shell and the rest of the earth offers a plausible explanation for plate tectonics and for the generation of the earth's magnetic field. Simple dynamo model is proposed, which able to reproduce all of the features of the contemporary and, within reasonable uncertainty, the paleomagnetic field. The model is also consistent with geological and geophysical observations.

  14. Scale-up of Carbon/Carbon Bipolar Plates

    SciTech Connect (OSTI)

    David P. Haack

    2009-04-08T23:59:59.000Z

    This project was focused upon developing a unique material technology for use in PEM fuel cell bipolar plates. The carbon/carbon composite material developed in this program is uniquely suited for use in fuel cell systems, as it is lightweight, highly conductive and corrosion resistant. The project further focused upon developing the manufacturing methodology to cost-effectively produce this material for use in commercial fuel cell systems. United Technology Fuel Cells Corp., a leading fuel cell developer was a subcontractor to the project was interested in the performance and low-cost potential of the material. The accomplishments of the program included the development and testing of a low-cost, fully molded, net-shape carbon-carbon bipolar plate. The process to cost-effectively manufacture these carbon-carbon bipolar plates was focused on extensively in this program. Key areas for cost-reduction that received attention in this program was net-shape molding of the detailed flow structures according to end-user design. Correlations between feature detail and process parameters were formed so that mold tooling could be accurately designed to meet a variety of flow field dimensions. A cost model was developed that predicted the cost of manufacture for the product in near-term volumes and long-term volumes (10+ million units per year). Because the roduct uses lowcost raw materials in quantities that are less than competitive tech, it was found that the cost of the product in high volume can be less than with other plate echnologies, and can meet the DOE goal of $4/kW for transportation applications. The excellent performance of the all-carbon plate in net shape was verified in fuel cell testing. Performance equivalent to much higher cost, fully machined graphite plates was found.

  15. Multi-well sample plate cover penetration system

    DOE Patents [OSTI]

    Beer, Neil Reginald (Pleasanton, CA)

    2011-12-27T23:59:59.000Z

    An apparatus for penetrating a cover over a multi-well sample plate containing at least one individual sample well includes a cutting head, a cutter extending from the cutting head, and a robot. The cutting head is connected to the robot wherein the robot moves the cutting head and cutter so that the cutter penetrates the cover over the multi-well sample plate providing access to the individual sample well. When the cutting head is moved downward the foil is pierced by the cutter that splits, opens, and folds the foil inward toward the well. The well is then open for sample aspiration but has been protected from cross contamination.

  16. Fuel cell collector plate and method of fabrication

    DOE Patents [OSTI]

    Braun, James C. (Juno Beach, FL); Zabriskie, Jr., John E. (Port St. Lucie, FL); Neutzler, Jay K. (Palm Beach Gardens, FL); Fuchs, Michel (Boynton Beach, FL); Gustafson, Robert C. (Palm Beach Gardens, FL)

    2001-01-01T23:59:59.000Z

    An improved molding composition is provided for compression molding or injection molding a current collector plate for a polymer electrolyte membrane fuel cell. The molding composition is comprised of a polymer resin combined with a low surface area, highly-conductive carbon and/or graphite powder filler. The low viscosity of the thermoplastic resin combined with the reduced filler particle surface area provide a moldable composition which can be fabricated into a current collector plate having improved current collecting capacity vis-a-vis comparable fluoropolymer molding compositions.

  17. Statistical Confirmation of a Stellar Upper Mass Limit

    E-Print Network [OSTI]

    M. S. Oey; C. J. Clarke

    2005-01-07T23:59:59.000Z

    We derive the expectation value for the maximum stellar mass (m_max) in an ensemble of N stars, as a function of the IMF upper-mass cutoff (m_up) and N. We statistically demonstrate that the upper IMF of the local massive star census observed thus far in the Milky Way and Magellanic Clouds clearly exhibits a universal upper mass cutoff around 120 - 200 M_sun for a Salpeter IMF, although the result is more ambiguous for a steeper IMF.

  18. Effects of axial plate heat conduction on the thermal performance of a laminar counterflow flat plate heat exchanger

    E-Print Network [OSTI]

    Demko, Jonathan Alexander

    1980-01-01T23:59:59.000Z

    THEN THE CENTERLINE TEHPERATUBES EY USING THZ ENERGY EQUATION AIONG THE CENTERLINE FINALLY E VAL HAT I THE FLO W FIELD EPS= 1, OD-04 DO 999 K=1, 850 REST=0 ~ 0 DO DO 70 J=1rM TH {N, J)= (4 DU?TH (8-1, J) -TH(8-2 ~ J) ) /3 DO DO 60 I= 2, 8L TH (I, M) = (DY2... thermal conductivity ratios of the plate to the fluid, dimensionless plate thicknesses, Reynolds and Prandtl numbers. ACKNOWLEDGEMENTS I would like to express my thanks to all those who gave me support while I was working toward this goal. Dr. Louis...

  19. Damping Estimation of Plates for Statistical Energy Analysis

    E-Print Network [OSTI]

    Vatti, Kranthi

    2011-06-01T23:59:59.000Z

    .R.D.M. algorithm. Statistical Energy Analysis (S.E.A.), which is a natural extension of the Power Input Method, is used to evaluate coupling loss factors for two sets of plates, one set joined along a line and the other set joined at a point. Two alternative...

  20. Nondestructive Evaluation of Plates Using Eddy Current Methods

    E-Print Network [OSTI]

    Nondestructive Evaluation of Plates Using Eddy Current Methods David C. Dobson Department in structures using eddy current methods is investigated. The goal of this work is to assess the extent to which a conductivity anomaly from eddy current data is quite unstable, and a method based on leastsquares principle

  1. Nondestructive Evaluation of Plates Using Eddy Current Methods

    E-Print Network [OSTI]

    Santosa, Fadil

    Nondestructive Evaluation of Plates Using Eddy Current Methods David C. Dobson \\Lambda Department in structures using eddy current methods is investigated. The goal of this work is to assess the extent to which anomaly from eddy current data is quite unstable, and a method based on leastsquares principle would fail

  2. Nondestructive Evaluation of Plates Using Eddy Current Methods

    E-Print Network [OSTI]

    Dobson, David C.

    Nondestructive Evaluation of Plates Using Eddy Current Methods David C. Dobson Department in structures using eddy current methods is investigated. The goal of this work is to assess the extent to which anomaly from eddy current data is quite unstable, and a method based on leastsquares principle would fail

  3. Krypton adsorption on (0001) graphite pre-plated with cyclohexane

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    91 Krypton adsorption on (0001) graphite pre-plated with cyclohexane A. Razafitianamaharavo (1), N tudie par volumtrie entre 71 et 83 K. L'adsorption de krypton, fortement inhibe par la prsence du physisorbed has been studied between 71 and 83 K by means of classical volumetric methods. Krypton adsorption

  4. Nitrided Metallic Bipolar Plates M.P. Brady (project lead)

    E-Print Network [OSTI]

    Nitrided Metallic Bipolar Plates M.P. Brady (project lead) P. F. Tortorelli Oak Ridge National - $2480 K ORNL (Lead) Allegheny Ludlum Funding for Year 2 Arizona State University - $2050 K wt.% pre-oxidation key to protective surface nitride formation V segregation into Cr-oxide makes

  5. anterior locking plates: Topics by E-print Network

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

    acq(A)2; rel(A)3; acq(C)10; rel(C)11; Q : acq(B)6; rel(B)7; acq(D)14; rel(D)15 Mller-Olm, Markus 277 MICROPLATES OptiPlates (white and black) Biology and Medicine Websites...

  6. Lab 4: Plate Tectonics Locating Geologic Hazards Introduction

    E-Print Network [OSTI]

    Chen, Po

    1 Lab 4: Plate Tectonics Locating Geologic Hazards Introduction The likelihood of major geologic hazards associated with the lithosphere, such as earthquakes and volcanoes, is not uniform around provides a ready explanation for the distribution of these types of geologic hazards. It is useful

  7. GUIDED WAVES IN LAYERED PLATE WITH DELAMINATIONS Fabrizio Ricci, 2

    E-Print Network [OSTI]

    Boyer, Edmond

    ) techniques. Among the various existing techniques, guided wave methods provide a good compromise in termsGUIDED WAVES IN LAYERED PLATE WITH DELAMINATIONS 1 Fabrizio Ricci, 2 Ajit K. Mal, 1 Ernesto Monaco) models are used for more practical cases, for which the geometric and material complexities of actual

  8. Numerical simulation of fracture mode transition in ductile plates

    E-Print Network [OSTI]

    Xue, Liang

    Fracture mode of ductile solids can vary depending on the history of stress state the material experienced. For example, ductile plates under remote in-plane loading are often found to rupture in mode I or mixed mode I/III. ...

  9. RECORD OF DESIGNATED SUBSTANCE ASSESSMENT SUBSTANCE: LEAD (plates and Gamma

    E-Print Network [OSTI]

    Thompson, Michael

    RECORD OF DESIGNATED SUBSTANCE ASSESSMENT SUBSTANCE: LEAD (plates and Gamma Source holder) DATE Direct / Indirect Per Month / Year Lead Mechanical Indirect No change Engineering CONCLUSIONS Read the plant? Product Title: Lead Type of Container: none Size of Container: not applicable 2. Is this form

  10. Distributed Roughness Receptivity in a Flat Plate Boundary Layer

    E-Print Network [OSTI]

    Kuester, Matthew Scott

    2014-04-18T23:59:59.000Z

    for the three different unit Reynolds num- ber test conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.4 Spanwise uniformity of boundary layer integral quantities at x = 870 mm for low unit Reynolds number test condition... with the distributed roughness configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.5 Differential pressure across the flat plate leading edge. . . . . . . . . . 25 3.6 Roughness patch (k = 1 mm), before windowing . . . . . . . . . . . . 27 3...

  11. Film cooling on a flat plate: investigating density

    E-Print Network [OSTI]

    Grizzle, Joshua Peter Fletcher

    2009-05-15T23:59:59.000Z

    This study is an investigation of two specific effects on turbine blade film cooling. The effect of coolant to mainstream density ratio and upstream steps was studied. The studies were conducted on two flat plates with 4mm cylindrical film cooling...

  12. DAMAGE LOCALIZATION IN PLATES USING DLVs Dionisio Bernal1

    E-Print Network [OSTI]

    Bernal, Dionisio

    DAMAGE LOCALIZATION IN PLATES USING DLVs Dionisio Bernal1 and Ariel Levy2 Department of Civil Associate Professor, 2 Graduate Student ABSTRACT The performance of a technique to localize damage based on the computation of load vectors that create stress fields that bypass the damaged region is investigated

  13. Optical processing furnace with quartz muffle and diffuser plate

    DOE Patents [OSTI]

    Sopori, Bhushan L. (Denver, CO)

    1996-01-01T23:59:59.000Z

    An optical furnace for annealing a process wafer comprising a source of optical energy, a quartz muffle having a door to hold the wafer for processing, and a quartz diffuser plate to diffuse the light impinging on the quartz muffle; a feedback system with a light sensor located in the wall of the muffle is also provided for controlling the source of optical energy.

  14. Static Analysis of Sandwich Plates by Hybrid Finite Elements

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Static Analysis of Sandwich Plates by Hybrid Finite Elements V. Manet and W.-S. Han Materials analysis tool. The subject of the present work concerns the development of hybrid sandwich finite elements into acount. The present work concerns the development of hybrid sandwich finite elements mod- elling

  15. Enhanced radiative heat transfer between nanostructured gold plates

    E-Print Network [OSTI]

    R. Gurout; J. Lussange; F. S. S. Rosa; J. -P. Hugonin; D. A. R. Dalvit; J. -J. Greffet; A. Lambrecht; S. Reynaud

    2012-03-07T23:59:59.000Z

    We compute the radiative heat transfer between nanostructured gold plates in the framework of the scattering theory. We predict an enhancement of the heat transfer as we increase the depth of the corrugations while keeping the distance of closest approach fixed. We interpret this effect in terms of the evolution of plasmonic and guided modes as a function of the grating's geometry.

  16. Plate-Based Fuel Processing System Final Report

    SciTech Connect (OSTI)

    Carlos Faz; Helen Liu; Jacques Nicole; David Yee

    2005-12-22T23:59:59.000Z

    On-board reforming of liquid fuels into hydrogen is an enabling technology that could accelerate consumer usage of fuel cell powered vehicles. The technology would leverage the convenience of the existing gasoline fueling infrastructure while taking advantage of the fuel cell efficiency and low emissions. Commercial acceptance of on-board reforming faces several obstacles that include: (1) startup time, (2) transient response, and (3) system complexity (size, weight and cost). These obstacles are being addressed in a variety of projects through development, integration and optimization of existing fuel processing system designs. In this project, CESI investigated steam reforming (SR), water-gas-shift (WGS) and preferential oxidation (PrOx) catalysts while developing plate reactor designs and hardware where the catalytic function is integrated into a primary surface heat exchanger. The plate reactor approach has several advantages. The separation of the reforming and combustion streams permits the reforming reaction to be conducted at a higher pressure than the combustion reaction, thereby avoiding costly gas compression for combustion. The separation of the two streams also prevents the dilution of the reformate stream by the combustion air. The advantages of the plate reactor are not limited to steam reforming applications. In a WGS or PrOx reaction, the non-catalytic side of the plate would act as a heat exchanger to remove the heat generated by the exothermic WGS or PrOx reactions. This would maintain the catalyst under nearly isothermal conditions whereby the catalyst would operate at its optimal temperature. Furthermore, the plate design approach results in a low pressure drop, rapid transient capable and attrition-resistant reactor. These qualities are valued in any application, be it on-board or stationary fuel processing, since they reduce parasitic losses, increase over-all system efficiency and help perpetuate catalyst durability. In this program, CESI took the initial steam reforming plate-reactor concept and advanced it towards an integrated fuel processing system. A substantial amount of modeling was performed to guide the catalyst development and prototype hardware design and fabrication efforts. The plate-reactor mechanical design was studied in detail to establish design guidelines which would help the plate reactor survive the stresses of repeated thermal cycles (from start-ups and shut-downs). Integrated system performance modeling was performed to predict system efficiencies and determine the parameters with the most significant impact on efficiency. In conjunction with the modeling effort, a significant effort was directed towards catalyst development. CESI developed a highly active, sulfur tolerant, coke resistant, precious metal based reforming catalyst. CESI also developed its own non-precious metal based water-gas shift catalyst and demonstrated the catalysts durability over several thousands of hours of testing. CESI also developed a unique preferential oxidation catalyst capable of reducing 1% CO to < 10 ppm CO over a 35 C operating window through a single pass plate-based reactor. Finally, CESI combined the modeling results and steam reforming catalyst development efforts into prototype hardware. The first generation 3kW(e) prototype was fabricated from existing heat-exchanger plates to expedite the fabrication process. This prototype demonstrated steady state operation ranging from 5 to 100% load conditions. The prototype also demonstrated a 20:1 turndown ratio, 10:1 load transient operation and rapid start-up capability.

  17. Upper bounds on minimum distance of nonbinary quantum stabilizer codes

    E-Print Network [OSTI]

    Kumar, Santosh

    2005-11-01T23:59:59.000Z

    The most popular class of quantum error correcting codes is stabilizer codes. Binary quantum stabilizer codes have been well studied, and Calderbank, Rains, Shor and Sloane (July 1998) have constructed a table of upper bounds on the minimum distance...

  18. Characterization of Sea Turtle Nesting on the Upper Texas Coast

    E-Print Network [OSTI]

    Hughes, Christi Lynn

    2014-05-06T23:59:59.000Z

    Nearly annual record Kemps ridley sea turtle (Lepidochelys kempii) nesting activity on the upper Texas coast (UTC; defined as beaches from Sabine Pass to Matagorda Peninsula), where scientifically verifiable nesting commenced in 2002, has occurred...

  19. Improvable upper bounds to the piezoelectric polaron ground state energy

    E-Print Network [OSTI]

    A. V. Soldatov

    2014-12-31T23:59:59.000Z

    It was shown that an infinite sequence of improving non-increasing upper bounds to the ground state energy (GSE) of a slow-moving piezoeletric polaron can be devised.

  20. Hydrology and Glaciers in the Upper Indus Basin

    E-Print Network [OSTI]

    Yu, Winston

    Examines the state of the science associated with the snow and ice hydrology in the Upper Indus Basin (IUB), reviewing the literature and data available on the present and projected role of glaciers, snow fields, and stream ...

  1. Floristic study of the Upper Frio River, Texas

    E-Print Network [OSTI]

    Swihart, Theresa Irene

    2006-08-16T23:59:59.000Z

    Vascular plant collections and field data compiled during a one and a half year period for the upper Frio River, Texas, produced a flora that comprises 78 families, 223 genera and 319 species. Vascular plants were collected ...

  2. Normal and lateral Casimir forces between deformed plates

    SciTech Connect (OSTI)

    Emig, Thorsten; Hanke, Andreas; Golestanian, Ramin; Kardar, Mehran [Institut fuer Theoretische Physik, Universitaet zu Koeln, Zuelpicher Strasse 77, D-50937 Cologne (Germany); Institut fuer Theoretische Physik, Universitaet Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart (Germany); Institute for Advanced Studies in Basic Sciences, Zanjan 45195-159 (Iran, Islamic Republic of); Institute for Studies in Theoretical Physics and Mathematics, P.O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Physics Department, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

    2003-02-01T23:59:59.000Z

    The Casimir force between macroscopic bodies depends strongly on their shape and orientation. To study this geometry dependence in the case of two deformed metal plates, we use a path-integral quantization of the electromagnetic field which properly treats the many-body nature of the interaction, going beyond the commonly used pairwise summation (PWS) of van der Waals forces. For arbitrary deformations we provide an analytical result for the deformation induced change in the Casimir energy, which is exact to second order in the deformation amplitude. For the specific case of sinusoidally corrugated plates, we calculate both the normal and the lateral Casimir forces. The deformation induced change in the Casimir interaction of a flat and a corrugated plate shows an interesting crossover as a function of the ratio of the mean plate distance H to the corrugation length {lambda}: For {lambda}<>H. The amplitude of the lateral force between two corrugated plates which are out of registry is shown to have a maximum at an optimal wavelength of {lambda}{approx_equal}2.5 H. With increasing H/{lambda} > or approx. 0.3 the PWS approach becomes a progressively worse description of the lateral force due to many-body effects. These results may be of relevance for the design and operation of novel microelectromechanical systems (MEMS) and other nanoscale devices.

  3. Laminated exfoliated graphite composite-metal compositions for fuel cell flow field plate or bipolar plate applications

    DOE Patents [OSTI]

    Zhamu, Aruna; Shi, Jinjun; Guo, Jiusheng; Jang, Bor Z

    2014-05-20T23:59:59.000Z

    An electrically conductive laminate composition for fuel cell flow field plate or bipolar plate applications. The laminate composition comprises at least a thin metal sheet having two opposed exterior surfaces and a first exfoliated graphite composite sheet bonded to the first of the two exterior surfaces of the metal sheet wherein the exfoliated graphite composite sheet comprises: (a) expanded or exfoliated graphite and (b) a binder or matrix material to bond the expanded graphite for forming a cohered sheet, wherein the binder or matrix material is between 3% and 60% by weight based on the total weight of the first exfoliated graphite composite sheet. Preferably, the first exfoliated graphite composite sheet further comprises particles of non-expandable graphite or carbon in the amount of between 3% and 60% by weight based on the total weight of the non-expandable particles and the expanded graphite. Further preferably, the laminate comprises a second exfoliated graphite composite sheet bonded to the second surface of the metal sheet to form a three-layer laminate. Surface flow channels and other desired geometric features can be built onto the exterior surfaces of the laminate to form a flow field plate or bipolar plate. The resulting laminate has an exceptionally high thickness-direction conductivity and excellent resistance to gas permeation.

  4. Geology, volcanology and geochemistry Drainage pattern and regional morphostructure at Melka Kunture (Upper Awash, Ethiopia) ........................83

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    at Melka Kunture (Upper Awash, Ethiopia) ........................83 Guillaume Bardin, Jean-Paul Raynal, Guy Kieffer Volcanic markers in coarse alluvium at Melka Kunture (Upper Awash, Ethiopia (Upper Awash, Ethiopia) ....................................................103 Grard Poupeau, Guy

  5. Development of fabrication techniques for europia/iron cermet reactor control-arm plates

    SciTech Connect (OSTI)

    Moore, D.A.; Tarrant, E.A.

    1982-06-01T23:59:59.000Z

    Dense europia spheroids were dispersed in iron powder prior to pressing and sintering. The plates had adequate strength and possessed a neutron absorption worth in excess of comparable cadmium plates. 4 refs.

  6. 2.081J / 16.230J Plates and Shells, Spring 2006

    E-Print Network [OSTI]

    Wierzbicki, Tomasz

    This course explores the following topics: derivation of elastic and plastic stress-strain relations for plate and shell elements; the bending and buckling of rectangular plates; nonlinear geometric effects; post-buckling ...

  7. Torsion properties of biological fixation utilizing a plate with and without an intramedullary rod

    E-Print Network [OSTI]

    Keiser, Michael

    1995-01-01T23:59:59.000Z

    failure. The research reported here analyzed this biological fixation technique during torsional loading. The strain values on the surface of the plate alone were compared to those of a plate with an intramedullary rod during simulated fracture fixation...

  8. Vibration suppression of laminated composite plates using embedded smart material layers

    E-Print Network [OSTI]

    Krishnan, Sivasubramaniam

    2000-01-01T23:59:59.000Z

    In this study, a complete theoretical formulation of laminated composite plates with integrated smart material layers that serve as sensors and/or actuators is presented for the vibration suppression of laminated composite plates. The third...

  9. Vibration control in plates by uniformly distributed PZT actuators interconnected via electric networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    improve the performances of piezoelectric actuation. internal resonance / equivalent circuits 1Vibration control in plates by uniformly distributed PZT actuators interconnected via electric vibrations of plates by means of a set of electrically-interconnected piezoelectric actuators is described

  10. Implementation of a python version of a scaled boundary finite element method for plate bending analysis

    E-Print Network [OSTI]

    Chen, Lingfeng, M. Eng. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    Common finite element programs for plate bending analysis are complicated and limited by the common plate theories. Such programs are usually not user-friendly for designers to implement. Lately, Hou Man et al. from the ...

  11. Manufacturing of composite violin top plates and design of composite tailpieces By : Maxime Beaulieu

    E-Print Network [OSTI]

    Barthelat, Francois

    the Chladni pattern method and Tap Tone method. ·A qualitative analysis of the acoustics when the plates

  12. Automatic Number Plate Recognition for Australian Conditions Leonard G. C. Hamey

    E-Print Network [OSTI]

    Hamey, Len

    not paid for petrol obtained from self-service petrol stations. Number plate recognition is also used

  13. acute non-variceal upper: Topics by E-print Network

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

    upper layer model Computer Technologies and Information Sciences Websites Summary: Evaluation 65 Chapter 4 OSI Upper Layer Architecture and Model: Evaluation In this chapter the...

  14. On the effective plate thickness of monolayer graphene from flexural wave propagation

    E-Print Network [OSTI]

    Lin, Xi

    On the effective plate thickness of monolayer graphene from flexural wave propagation Sung Youb Kim utilize classical molecular dynamics to study flexural, or transverse wave propagation in monolayer) mode of wave propagation in a thin plate with plate thickness of h ¼ 0:104 nm. Finally, we find

  15. A fast multipole boundary element method for solving the thin plate bending problem

    E-Print Network [OSTI]

    Liu, Yijun

    A fast multipole boundary element method for solving the thin plate bending problem S. Huang, Y: Fast multipole method Boundary element method Thin plate bending problem a b s t r a c t A fast multipole boundary element method (BEM) for solving large-scale thin plate bending problems is presented

  16. Dynamic pressure response of water flow between closely spaced roughened flat plates

    E-Print Network [OSTI]

    Hess, John Charles

    1993-01-01T23:59:59.000Z

    A flat plate tester was designed and built to determine friction factors and dynamic pressures for water flow over smooth, knurl, and cavity plates. Reynolds numbers between 2000 and 35000 were obtained at plate clearances of 0.076 mm to 1.270 mm...

  17. Preservation of contrasting geothermal gradients across the Caribbean-North America plate

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Preservation of contrasting geothermal gradients across the Caribbean-North America plate boundary the North American and Caribbean plates, document a sharp cooling age discontinuity across the fault the Caribbean-North America plate boundary (Motagua Fault, Guatemala), Tectonics, 32, 993­1010, doi:10.1002/tect

  18. Development/Plasticity/Repair The Bone Morphogenetic Protein Roof Plate Chemorepellent

    E-Print Network [OSTI]

    Butler, Samantha

    Development/Plasticity/Repair The Bone Morphogenetic Protein Roof Plate Chemorepellent Regulates, Toronto, Ontario, Canada M5G 1X8 Commissural spinal axons extend away from the roof plate (RP) in response to the dorsal midline and are generated by the bone morphogenetic proteins (BMPs) in the roof plate (RP) (Liem

  19. Effect of Plating Variables on Whisker Formation in Pure Tin Films

    E-Print Network [OSTI]

    Collins, Gary S.

    Effect of Plating Variables on Whisker Formation in Pure Tin Films Stephanie Miller Advisors & Materials Engineering, Washington State University Introduction Tin whiskers are single-crystal filaments the effect of plating variables on whisker growth in tin-plated copper samples, with the goal of finding

  20. Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak Srisungsitthisunti

    E-Print Network [OSTI]

    Xu, Xianfan

    Volume Fresnel zone plates fabricated by femtosecond laser direct writing Pornsak October 2006; accepted 29 November 2006; published online 2 January 2007 In this letter, volume Fresnel. A volume zone plate consists of a number of layers of Fresnel zone plates designed to focus light together

  1. Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses

    E-Print Network [OSTI]

    Jahns, Jrgen

    Accurate and fast simulation of Fresnel zone plates and multi-level diffractive lenses Qing Cao, such as various Fresnel zone plates [1, 2] and muti-level diffractive lenses [3], can be used for focusing and fast simulation of various Fresnel zone plates and multi-level diffractive lenses. As two tests, we

  2. Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jrgen

    Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and Jurgen Jahns Traditional Fresnel zone plates (TFZPs) and photon sieves [1, 2, 3] can be used for the focusing and imaging of soft x.e. a modified Fresnel zone plate, MFZP) can realized the same functions as a photon sieve. In particular, we

  3. Scanning microscopy using a short-focal-length Fresnel zone plate

    E-Print Network [OSTI]

    Scanning microscopy using a short-focal-length Fresnel zone plate Ethan Schonbrun,* Winnie N. Ye demonstrate a form of scanning microscopy using a short-focal-length Fresnel zone plate and a low-NA relay. In this scheme, parallel scanning microscopy using a Fresnel zone-plate array would require only a single spatial

  4. Modified composite Fresnel zone plates with high numerical apertures Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jrgen

    Modified composite Fresnel zone plates with high numerical apertures Qing Cao and Jurgen Jahns Traditional Fresnel zone plates (TFZPs) can be used for the focusing and imaging of soft x-rays and EUV proposed the modified Fresnel zone plates that can produce sharp Gaussian focal spots (we call them

  5. Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jrgen

    Diffraction theory for azimuthally structured Fresnel zone plate Thordis Vierke and Jurgen Jahns on the classical Fresnel zone plate (FZP) [1]. A simple FZP consists of alternating opaque and transparent rings Fresnel zone plate but to add bridges that hold the zones in place [4], see Fig. 1 right. We refer

  6. Electroless iron plating on pure magnesium for biomedical applications Xingkai Zhang a

    E-Print Network [OSTI]

    Zheng, Yufeng

    : Biomaterials Deposition Corrosion Thin films a b s t r a c t Electroless nickel plating is usually adopted geometries. Electroless nickel plating [10] is usually used to protect the magnesium alloy from corrosionElectroless iron plating on pure magnesium for biomedical applications Xingkai Zhang a , Wei Han a

  7. Author's personal copy Investigation of effect of polyurea on response of steel plates

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    Author's personal copy Investigation of effect of polyurea on response of steel plates to impulsive the results of the response of monolithic steel plates and steel-polyurea bilayer plates to impulsive blast), it will magnify the initial shock effect and promote fail- ure. These experimental results are paralleled

  8. Special Perforated Steel Plate Shear Walls with Reduced Beam Section Anchor Beams. II: Analysis and

    E-Print Network [OSTI]

    Bruneau, Michel

    ; Seismic design. Introduction Steel plate shear walls are a single or multistory lateral force resisting system consisting of thin, unstiffened, infill plates con- nected to their boundary frames. Upon lateral loading, buckling occurs in the infill plates, precipitating the development of a ten- sion field action

  9. Fluid flow plate for decreased density of fuel cell assembly

    DOE Patents [OSTI]

    Vitale, Nicholas G. (Albany, NY)

    1999-01-01T23:59:59.000Z

    A fluid flow plate includes first and second outward faces. Each of the outward faces has a flow channel thereon for carrying respective fluid. At least one of the fluids serves as reactant fluid for a fuel cell of a fuel cell assembly. One or more pockets are formed between the first and second outward faces for decreasing density of the fluid flow plate. A given flow channel can include one or more end sections and an intermediate section. An interposed member can be positioned between the outward faces at an interface between an intermediate section, of one of the outward faces, and an end section, of that outward face. The interposed member can serve to isolate the reactant fluid from the opposing outward face. The intermediate section(s) of flow channel(s) on an outward face are preferably formed as a folded expanse.

  10. Optimal piezo-electro-mechanical coupling to control plate vibrations

    E-Print Network [OSTI]

    S. Alessandroni; F. dell'Isola; F. Frezza

    2010-08-30T23:59:59.000Z

    A new way of coupling electrical and mechanical waves, using piezoelectric effect, is presented here. Since the energy exchange between two systems supporting wave propagation is maximum when their evolution is governed by similar equations, hence, an optimal electromechanical coupling is obtained by designing an electric network which is "analog" to the mechanical structure to be controlled. In this paper, we exploit this idea to enhance the coupling, between a Kirchhoff-Love plate and one possible synthesis of its circuital analog, as obtained by means of a set of piezoelectric actuators uniformly distributed upon the plate. It is shown how this approach allows for an optimal energy exchange between the mechanic and the electric forms independent of the modal evolution of the structure. Moreover, we show how an efficient electric dissipation of the mechanical energy can be obtained adding dissipative elements in the electric network.

  11. Program sizes flange or pipe-tap orifice plates

    SciTech Connect (OSTI)

    Hogsett, J.E.

    1984-03-12T23:59:59.000Z

    A program has been developed for the HP-41CV programmable calculator that is designed to compute differential pressure across an orifice, gas flow through an orifice, or the orifice-plate bore for orifice plates with flange or pipe taps. It is designed to save time in extracting values from charts, tables, and graphs which are required to perform the calculations. It is based on equations and data from Spink. The program is run by inputing appropriate data via execution of a program entitled ''DATA IN,'' calculating differential pressure via program ''dH20,'' gas flow via program ''FLOW,'' and via program ''BORE.'' Flange-tap calculations are performed with FLAG 01 not set, while pipe-tap calculations are selected by setting FLAG 01.

  12. Micromechanisms of ductile fracturing of DH-36 steel plates under impulsive loads and influence of polyurea reinforcing

    E-Print Network [OSTI]

    Amini, M. R.; Nemat-Nasser, S.

    2010-01-01T23:59:59.000Z

    of ductile fracturing of DH-36 steel plates under impulsiveductile fracturing of DH-36 steel plates subjected to blast-microstructure of the deformed steel samples also revealed

  13. Wave interaction with a fixed vertical flat plate

    E-Print Network [OSTI]

    Glover, Lanny Bruce

    1985-01-01T23:59:59.000Z

    of Science in Ocean Engineering and graduated with merit in 1979. Commissioned an Ensign in the United States Navy he was selected for the Navy's Nuclear Power Program. After completing formal navy training he served onboard the USS TRUXTUN (CGN-35...) Andrew C. Vastano (Member) December )985 ABSTRACT wave Interaction with a Fixed Vertical Flat Plate. (December 1985) Lenny Bruce Glover, B. S. , United States Naval Academy Chairman of Advisory Committee: Dr. John B. Herbich The lift and drag...

  14. Optical processing furnace with quartz muffle and diffuser plate

    DOE Patents [OSTI]

    Sopori, B.L.

    1996-11-19T23:59:59.000Z

    An optical furnace for annealing a process wafer is disclosed comprising a source of optical energy, a quartz muffle having a door to hold the wafer for processing, and a quartz diffuser plate to diffuse the light impinging on the quartz muffle; a feedback system with a light sensor located in the wall of the muffle is also provided for controlling the source of optical energy. 5 figs.

  15. Low Cost PEM Fuel Cell Metal Bipolar Plates

    E-Print Network [OSTI]

    Low Cost PEM Fuel Cell Metal Bipolar Plates CH Wang TreadStone Technologies, Inc. Fuel Cell Project, stationary and automobile fuel cell systems. $0.00 $0.05 $0.10 $0.15 $0.20 $0.25 $0.30 $0.35 $0.40 $0.45 $0. · The technology has been evaluated by various clients and used in portable fuel cell power systems. Corporate

  16. Evaluation of tracking flat plate and concentrator PV systems

    SciTech Connect (OSTI)

    Lepley, T. [Phasor Energy Co., Phoenix, AZ (United States); Hammond, B.; Harris, A. [Arizona State Univ., Tempe, AZ (United States)

    1997-12-31T23:59:59.000Z

    Arizona Public Service Company has conducted side-by-side field tests of most of the leading tracking flat plate and concentrating PV technologies. The results verify the added value due to tracking, but show that additional reliability improvements are needed in most cases. Concentrator PV systems can be high performers in sunny regions. In addition, a novel inverter system design by Raytheon has demonstrated excellent performance and promises to be more reliable and have lower cost than competing technologies.

  17. Electroless plating of graphite with copper and nickel

    SciTech Connect (OSTI)

    Caturla, F.; Molina, F.; Molina-Sabio, M.; Rodriguez-Reinoso, F. [Univ. de Alicante (Spain). Dept. de Quimica Inorganica; Esteban, A. [CIEMAT, Madrid (Spain)

    1995-12-01T23:59:59.000Z

    Decommissioning in the European Union of gas-cooled nuclear reactors using graphite as the moderator will generate a large amount of irradiated graphite as waste. Graphite is a radioactive waste of relatively low activity and consequently the options considered for the management of the waste may include: (i) incineration, (ii) ocean bed disposal, (iii) deep geological disposal, and (iv) shallow land burial. In case the last is the selected mode, an appropriate conditioning procedure is necessary before final disposal, by covering the graphite with a material avoiding or reducing the emission of radionuclides to its surrounding. This work analyses the possibility of conditioning graphite pieces (with a large proportion of pores of different sizes up to 100 {micro}m) with a metal coating of copper or nickel produced by electroless plating, with the aim of completely isolating the graphite from its surrounding. Electroless plating with copper results in a very large proportion of pores filled or covered, but a fraction of the pores remain in the graphite, which decreases with increasing thickness of metal deposit. Furthermore, the copper plating is permeable to liquids and consequently the graphite does not become completely isolated from the surrounding. The percentage of porosity filled or covered by nickel deposits is similar to copper, but they are not permeable to liquids, at least when the thickness is relatively high, and consequently the access of the liquids to the graphite is rather limited. However, when electroless plating with copper is followed by nickel deposition the graphite becomes isolated from the exterior.

  18. aux propositions Monte Verit Le Congressi Stefano Franscini, plate-

    E-Print Network [OSTI]

    Richner, Heinz

    Appel aux propositions Monte Verità Le Congressi Stefano Franscini, plate- forme de congrès de l'Ecole polytechnique fédérale de Zurich, offre la possibilité d'or- ganiser des conférences de recherche au Monte senior et junior, séjournant au Monte Verità pendant toute la durée de la conférence Le formulaire de

  19. Magnetostructural phase transition in electroless-plated Ni nanoarrays

    SciTech Connect (OSTI)

    Huang, Chun-Chao; Lo, Chih-Chieh; Tseng, Yuan-Chieh; Liu, Chien-Min; Chen, Chih [Department of Materials Science and Engineering, National Chiao Tung University 1001, Ta Hsueh Road, Hsin-Chu 30010, Taiwan (China)

    2011-06-01T23:59:59.000Z

    Ni nanoarrays were synthesized by electroless-plating and shaped by an anodic aluminum oxide template. The as-plated arrays exhibited superparamagnetic (SM) ordering resulting from nanocrystalline microstructure. Ferromagnetic (FM) ordering was found to be restored as the arrays' crystallinity was enhanced upon post-annealing. The microstructure (crystallinity) and the FM ordering are strongly coupled, revealing a magneto-structural correlation for the arrays. The magnetostructural properties of the arrays can be controlled by post-annealing, where the magnetization is proportional to the annealing temperature. The electroless-plated arrays synthesized in this work display magnetic anisotropy not found in electroplated ones. This is likely attributed to the nature of the clusterlike microstructure, whose cluster-boundaries may confine the FM rotation within the cluster. The spin-polarization was probed by x-ray magnetic circular dichroism while the arrays underwent the SM{yields}FM phase transition. The sum-rules results reveal that the total magnetization of the arrays is dominated by spin moment (m{sub spin}). The change in m{sub spin} is responsible for the SM{yields}FM phase transition upon annealing, as well as for the loss of magnetization upon temperature increase that we observed macroscopically.

  20. Modal parameters for a flat plate supported by an oil film.

    SciTech Connect (OSTI)

    Jauhola, A. G. (Andrew G.); Kinzel, E. C. (Edward C.); Reding, D. (Derek); Hunter, N. F. (Norman F.)

    2003-01-01T23:59:59.000Z

    This paper examines the resonant frequencies, Mode shapes, and damping values for a square plate suppcirted by an oil film. Such a study is motivated by interesl: in oil-supported slip tables used for vibration testing. Rtssonant frequencies and percent critical damping were measured for four cases: plate freely suspended; plate with free end conditions and suppoited by an oil film; plate fixed at several locations; and plate fixed at several locations while supported by an oil film. Analytical estimates of the modal properties and modal propertie!j derived from measured data are compared and discrepancies discussed.

  1. A photoelastic study of rectangular plates in tension with nonsymmetric loading through a single circular hole

    E-Print Network [OSTI]

    Love, Richard Meigs

    1965-01-01T23:59:59.000Z

    ROD UC T ION EXPERIMENTAL PROCEDURE Preparation of Models Obtaining Photoelastic Data . Calculation of Stresses . Correlation of Results 22 IV V DISCUSSION OF RESULTS CONCLUSIONS AND RECOMMENDATIONS 25 33 APPENDIX REFERENCES . 37 52... LIST OF FIGURES Figure Dimensions of Models Page 10 Typical Test Set-Up F ringe Patte rn f or Plate 1A Fringe Pattern for Plate 2B Fringe Pattern for Plate 3C 12 13 14 Fringe Pattern for Plate 4D Isoclinics for Plate 1A 15 16 Isoclinics...

  2. FULL SIZE U-10MO MONOLITHIC FUEL FOIL AND FUEL PLATE FABRICATION-TECHNOLOGY DEVELOPMENT

    SciTech Connect (OSTI)

    G. A. Moore; J-F Jue; B. H. Rabin; M. J. Nilles

    2010-03-01T23:59:59.000Z

    Full-size U10Mo foils are being developed for use in high density LEU monolithic fuel plates. The application of a zirconium barrier layer too the foil is applied using a hot co-rolling process. Aluminum clad fuel plates are fabricated using Hot Isostatic Pressing (HIP) or a Friction Bonding (FB) process. An overview is provided of ongoing technology development activities, including: the co-rolling process, foil shearing/slitting and polishing, cladding bonding processes, plate forming, plate-assembly swaging, and fuel plate characterization. Characterization techniques being employed include, Ultrasonic Testing (UT), radiography, and microscopy.

  3. Possibility of corrector plate tuning of x-ray focusing

    SciTech Connect (OSTI)

    Talman, Richard

    2009-05-01T23:59:59.000Z

    Schemes for focusing a hard x-ray beam to a small spot are described. The theoretical minimum spot size, assuming perfect mirror shape, is shown to be 4 nm FWHM, independent of x-ray wavelength. This is less than the 10 nm previously said to be the minimum achievable diffraction-limited x-ray spot size. While providing the penetrating power only possible with x rays, this approaches the resolution needed to image individual atoms or atomic layers. However, the perfect mirror assumption is physically unrealistic. This paper discusses the compensation of mirror shape errors by a corrector plate and shows that the tolerances for corrector plate shape are far looser than are tolerances for mirror shape. The full eventual success of achieving theoretical minimum resolution will require mirror shape precision considerably better than has been achieved at this time, though far looser than would be required for simpleminded paraboloidal focusing. Two variants of the scheme, subject to the same mathematical treatment, are described. (i) The ''corrector plate'' name is copied from the similarly functioning element of the same name in a Schmidt camera. The focusing is achieved using glancing, yet coherent, reflection from a high-Z paraboloidal mirror. The strategy is to obtain dominant focusing from reflection and to compensate with weak refractive focusing. The reflective focusing is strong and achromatic but insufficiently accurate. The refractive focusing is weak and chromatic but highly accurate. The corrector plate improves resolution the way eyeglasses help a person to see. It can, for example, be ''fitted'' the same trial-and-error way an optometrist establishes a prescription for glasses. Dimensional tolerances for the compensator are far looser than would be needed for a mirror to achieve the same resolution. Unlike compound refractive lenses, attenuation will be small, at least for wavelengths longer than 1 A, because the compensation layer is thin. (ii) For this variant, the corrector plate is a washer-shaped refractive or Fresnel lens, and the mirror is (theoretically) a perfect cone. All focusing is provided by the lens. Even though the cone provides no focusing, it improves the resolution by increasing the numerical aperture of the device. Compared to a paraboloidal shape, it is assumed that the conical shape can be more accurately fabricated. Of the two variants, only the first variant is, in principle, capable of achieving the theoretical minimum resolution. Configurations are suggested, in both case (i) and case (ii), that use currently possible construction precisions to produce resolutions better than have been achieved to date. However, both results will remain well above the theoretical minimum until fabrication techniques have been developed that provide greater precision than is possible at this time.

  4. The Light Velocity Casimir Effect Does the Velocity of Light Increase when Propagating Between the Casimir Plates?

    E-Print Network [OSTI]

    Ostoma, T; Ostoma, Tom; Trushyk, Mike

    1999-01-01T23:59:59.000Z

    We propose experiments that might be set up to detect the increase in the velocity of light in a vacuum in the laboratory frame for photons travelling between (and perpendicular to) the Casimir plates in a vacuum. The Casimir plates are two closely spaced, conductive plates, where an attractive force is observed to exist between the plates called the 'Casimir Force'. We propose that the velocity of light in a vacuum increases when propagating between two transparent Casimir Plates. We call this effect the 'Light Velocity Casimir Effect' or LVC effect. The LVC effect happens because the vacuum energy density in between the plates is lower than that outside the Casimir plates. The conductive plates disallow certain frequencies of electrically charged virtual particles to exist inside the plates, thus lowering the inside vacuum particle density, compared to the density outside the plates. The reduced (electrically charged) virtual particle density results in fewer photon scattering events inside the plates, whic...

  5. Wave-plate structures, power selective optical filter devices, and optical systems using same

    DOE Patents [OSTI]

    Koplow, Jeffrey P. (San Ramon, CA)

    2012-07-03T23:59:59.000Z

    In an embodiment, an optical filter device includes an input polarizer for selectively transmitting an input signal. The device includes a wave-plate structure positioned to receive the input signal, which includes first and second substantially zero-order, zero-wave plates arranged in series with and oriented at an angle relative to each other. The first and second zero-wave plates are configured to alter a polarization state of the input signal passing in a manner that depends on the power of the input signal. Each zero-wave plate includes an entry and exit wave plate each having a fast axis, with the fast axes oriented substantially perpendicular to each other. Each entry wave plate is oriented relative to a transmission axis of the input polarizer at a respective angle. An output polarizer is positioned to receive a signal output from the wave-plate structure and selectively transmits the signal based on the polarization state.

  6. Upper tropospheric jet streams over North America during summer 1988

    E-Print Network [OSTI]

    Landers, David Edward

    1991-01-01T23:59:59.000Z

    UPPER TROPOSPHERIC JET STREAMS OVER NORTH AMERICA DURING SUMMER 1988 A Thesis by DAVID EDWARD LANDERS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfuillment of the requirements for the degree of MASTER... OF SCIENCE August 1991 Ma j or Sub j ect: Meteorology UPPER TROPOSPHERIC JET STREAMS OVER NORTH AMERICA SUMMER 1988 A Thesis by DAVID EDWARD LANDERS Approved as to style and Content by: Dusan Djuric (Co-Chairman) James P. McGuirk (Co...

  7. Szlenk Index, Upper Estimates, and Embedding in Banach Spaces

    E-Print Network [OSTI]

    Causey, Ryan Michael

    2014-08-07T23:59:59.000Z

    and the topology of the space. But Enflo's famous example of a Banach space failing the approximation property [8] is also a Banach space failing to have either a Schauder basis or a finite dimensional decomposition. For this reason, one often wishes to determine... subsequential U upper tree estimates, then X embeds into Y . 8 (ii) If U, V are as in Theorem 1.2, then there exists a reflexive Banach space Z with FDD F satisfying subsequential V lower and subsequential U upper block estimates in Z such that if X ? REFL...

  8. Upper Hot Creek Ranch Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga, IndianaTurtleCooperativeCROSS-VALIDATION OF SWERA'sUpperUpper Hot

  9. Upper Hot Creek Ranch Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga, IndianaTurtleCooperativeCROSS-VALIDATION OF SWERA'sUpperUpper

  10. MODELING THE FATE AND TRANSPORT OF ATRAZINE IN THE UPPER CHESAPEAKE BAY

    E-Print Network [OSTI]

    Frei, Allan

    for agrochemicals in the Upper Chesapeake Bay. Keywords: Chesapeake Bay, hydrodynamic model, atrazine, photolysis

  11. Upper Oceanic Energy Response to Tropical Cyclone Passage JOHN A. KNAFF AND MARK DEMARIA

    E-Print Network [OSTI]

    Schubert, Wayne H.

    Upper Oceanic Energy Response to Tropical Cyclone Passage JOHN A. KNAFF AND MARK DEMARIA NOAA is investigated using a 6-yr daily record of data-driven analyses of two measures of upper ocean energy content information and the upper ocean response. Upper oceanic energy decreases in these metrics are shown to persist

  12. Flat Plate PV Module Eligibility Listing Procedure Updated 6/2/14 Senate Bill 1 (SB1) defines the solar incentive programs for California, and flat plate PV

    E-Print Network [OSTI]

    Flat Plate PV Module Eligibility Listing Procedure Updated 6/2/14 Senate Bill 1 (SB1) defines the solar incentive programs for California, and flat plate PV modules 1 must be listed on the SB1 for adding PV modules to the SB1 list is as follows: 1 . Data submitted to the Energy Commission

  13. Upper Snake Provincial Assessment May 2004 6. Participants and Affiliations

    E-Print Network [OSTI]

    for the Upper Snake Provincial Assessment Idaho Department of Fish and Game: Gregg Servheen Jon Beals Lance Chad Colter Shoshone-Bannock Tribes Larry Dickerson US Fish and Wildlife Service John Fred Shoshone-Bannock Tribes Jim Fredericks Idaho Fish and Game Dan Garren Idaho Fish and Game Lauri Hanauska-Brown Idaho Fish

  14. Transdichotomous algorithms without multiplication some upper and lower bounds

    E-Print Network [OSTI]

    Brodnik, Andrej "Andy"

    Trans­dichotomous algorithms without multiplication ­ some upper and lower bounds Andrej Brodnik 1 that on a RAM with addition, subtraction, bitwise Boolean operations and shifts, but no multiplication; 1g w of w­bit bit strings (or numbers between 0 and 2 w \\Gamma 1). An increasingly popular

  15. Upper Midwest Food, Fuel and Fiber Network Tour

    E-Print Network [OSTI]

    2nd Annual Upper Midwest Food, Fuel and Fiber Network Tour Aug. 31 Sept. 2, 2010 #12;Tuesday Dept. of Ag & Biological Engineering 9:30 a.m. Horizon Wind Energy Farm (Construction vs. Finished Phases) http://www.horizonwind.com/home/ Gary Freymiller, WISER & Peter Park, Horizon Wind Energy 11:00 a

  16. Tracking and Modifying Upper-body Human Motion Data

    E-Print Network [OSTI]

    Zordan, Victor

    of humanlike characters affect the believability, aesthetic, and impact of an animation or virtual environment the dynamics of the animated character. Figure 1 shows a human actor and two animated characters tracking hisTracking and Modifying Upper-body Human Motion Data with Dynamic Simulation Victor B. Zordan

  17. Upper Limits from Counting Experiments with Multiple Pipelines

    E-Print Network [OSTI]

    Patrick J. Sutton

    2010-04-07T23:59:59.000Z

    In counting experiments, one can set an upper limit on the rate of a Poisson process based on a count of the number of events observed due to the process. In some experiments, one makes several counts of the number of events, using different instruments, different event detection algorithms, or observations over multiple time intervals. We demonstrate how to generalize the classical frequentist upper limit calculation to the case where multiple counts of events are made over one or more time intervals using several (not necessarily independent) procedures. We show how different choices of the rank ordering of possible outcomes in the space of counts correspond to applying different levels of significance to the various measurements. We propose an ordering that is matched to the sensitivity of the different measurement procedures and show that in typical cases it gives stronger upper limits than other choices. As an example, we show how this method can be applied to searches for gravitational-wave bursts, where multiple burst-detection algorithms analyse the same data set, and demonstrate how a single combined upper limit can be set on the gravitational-wave burst rate.

  18. Detection of upper mantle flow associated with the African Superplume

    E-Print Network [OSTI]

    Conrad, Clint

    with warm, less dense material, the African seismic anomaly has been ascribed to a long-lived thermal upwelling from the lower mantle. Such a large-scale upwelling should also affect the regional horizontal flow field in the upper mantle. To test this model, we compare seismic anisotropy inferred from shear-wave

  19. Architecture of the upper Sego Sandstone, Book Cliffs, Utah

    E-Print Network [OSTI]

    Birkhead, Stanley Scott

    2006-04-12T23:59:59.000Z

    ................................................................................................................... 22 SEDIMENTOLOGY.................................................................................................... 26 Marine Shale with Wavy Sandstones............................................................... 26 Highly... surfaces. The cross-section defines an 8.5 kilometer section that begins in Sego Canyon outside of Thompson Springs, Figure 12-Bedding diagram of major facies transitions with sedimentary logs overlain. SEDIMENTOLOGY Upper Sego Sandstone deposits can...

  20. ORIGINAL ARTICLE Acupuncture for Upper-Extremity Rehabilitation in Chronic

    E-Print Network [OSTI]

    Schaechter, Judith D.

    , and improvement trends in UE motor function (P .09) and digit ROM (P .06). Conclusions: Based on ITT analyses, we Sham-Controlled Study Peter M. Wayne, PhD, David E. Krebs, PhD, Eric A. Macklin, PhD, Rosa Schnyer, Lic. Acupuncture for upper- extremity rehabilitation in chronic stroke: a randomized sham- controlled study. Arch

  1. Simulating Sustainability: Conjunctive Land and Water Management in the Upper

    E-Print Network [OSTI]

    Fay, Noah

    a series of micro-basins that function similarly to a multi-reservoir river system for water management arrangements for water management, and integration of geospatial information into "sustainability scenariosSimulating Sustainability: Conjunctive Land and Water Management in the Upper Santa Cruz River

  2. Upper mantle flow beneath the Hangay dome, central Mongolia

    E-Print Network [OSTI]

    Dverchre, Jacques

    Upper mantle flow beneath the Hangay dome, central Mongolia Acknowledgements This work, A., Amarjargal, S. and Dverchre, J., 2003. GPS measurements of crustal deformation in the Baikal-Mongolia., 2002. Mantle structure and rifting processes in the Baikal-Mongolia region: geophysical data

  3. LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE

    SciTech Connect (OSTI)

    Lopez-Puertas, M.; Funke, B.; Garcia-Comas, M. [Instituto de Astrofisica de Andalucia (CSIC), E-18080 Granada (Spain); Dinelli, B. M. [ISAC-CNR, I-40129 Bologna (Italy); Adriani, A.; D'Aversa, E. [IAPS-INAF, I-00133 Rome (Italy); Moriconi, M. L. [ISAC-CNR, I-00133 Rome (Italy); Boersma, C.; Allamandola, L. J., E-mail: puertas@iaa.es [NASA Ames Research Center, Moffett Field, CA 94035-1000 (United States)

    2013-06-20T23:59:59.000Z

    In this paper, we analyze the strong unidentified emission near 3.28 {mu}m in Titan's upper daytime atmosphere recently discovered by Dinelli et al. We have studied it by using the NASA Ames PAH IR Spectroscopic Database. The polycyclic aromatic hydrocarbons (PAHs), after absorbing UV solar radiation, are able to emit strongly near 3.3 {mu}m. By using current models for the redistribution of the absorbed UV energy, we have explained the observed spectral feature and have derived the vertical distribution of PAH abundances in Titan's upper atmosphere. PAHs have been found to be present in large concentrations, about (2-3) Multiplication-Sign 10{sup 4} particles cm{sup -3}. The identified PAHs have 9-96 carbons, with a concentration-weighted average of 34 carbons. The mean mass is {approx}430 u; the mean area is about 0.53 nm{sup 2}; they are formed by 10-11 rings on average, and about one-third of them contain nitrogen atoms. Recently, benzene together with light aromatic species as well as small concentrations of heavy positive and negative ions have been detected in Titan's upper atmosphere. We suggest that the large concentrations of PAHs found here are the neutral counterpart of those positive and negative ions, which hence supports the theory that the origin of Titan main haze layer is located in the upper atmosphere.

  4. Floristic study of the Upper Frio River, Texas

    E-Print Network [OSTI]

    Swihart, Theresa Irene

    2006-08-16T23:59:59.000Z

    of the floras of North Central Texas, Madison County, Robertson County and the La Copita Research Area. A total of 9 species endemic to Texas were collected along the upper Frio River. Throughout the northern portion of the study area there is exposed bedrock...

  5. An experimental study of the vibration of modified cantilever plates

    E-Print Network [OSTI]

    Read, James McPherson

    1954-01-01T23:59:59.000Z

    wings and larger sweep angles. For complete vibration and flutter anal- ysis of these components it is necessary that the modes and frequencies of natural vibration be closely established. Flat cantilever plates (I). serve as a good analogy... of the wings for vibration study. The wings, however, are not usually true cantilevers but are fastened along two lines. One of these lines is along the skin of the fuselage and the other is along the center line of the craft. JL moment is applied...

  6. Review of Orifice Plate Steam Traps | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 <Department of ii iii ACKNOWLEDGEMENTSReview of Orifice Plate

  7. Thermodynamics, Structure, and Dynamics of Water Confined between Hydrophobic Plates

    E-Print Network [OSTI]

    Pradeep Kumar; Sergey V. Buldyrev; Francis W. Starr; Nicolas Giovambattista; H. Eugene Stanley

    2005-07-05T23:59:59.000Z

    We perform molecular dynamics simulations of 512 water-like molecules that interact via the TIP5P potential and are confined between two smooth hydrophobic plates that are separated by 1.10 nm. We find that the anomalous thermodynamic properties of water are shifted to lower temperatures relative to the bulk by $\\approx 40$ K. The dynamics and structure of the confined water resemble bulk water at higher temperatures, consistent with the shift of thermodynamic anomalies to lower temperature. Due to this $T$ shift, our confined water simulations (down to $T = 220$ K) do not reach sufficiently low temperature to observe a liquid-liquid phase transition found for bulk water at $T\\approx 215$ K using the TIP5P potential. We find that the different crystalline structures that can form for two different separations of the plates, 0.7 nm and 1.10 nm, have no counterparts in the bulk system, and discuss the relevance to experiments on confined water.

  8. The thermal Casimir effect for rough metallic plates

    E-Print Network [OSTI]

    G. Bimonte

    2007-11-04T23:59:59.000Z

    We propose a new theory of thermal Casimir effect, holding for the experimentally important case of metallic surfaces with a roughness having a spatial scale smaller than the skin depth. The theory is based on a simple phenomenological model for a rough conductor, that explicitly takes account of the fact that ohmic conduction in the immediate vicinity of the surface of a conductor is much impeded by surface roughness, if the amplitude of roughness is smaller than the skin depth. As a result of the new model, we find that surface roughness strongly influences the magnitude of the thermal correction to the Casimir force, independently of the plates separation. Our model, while consistent with recent accurate measurements of the Casimir force in the submicron range, leads to a new prediction for the not yet observed thermal correction to the Casimir force at large plates separation. Besides the thermal Casimir problem, our model is relevant for the correct theoretical interpretation of current experiments probing other proximity effects between conductors, like radiative heat transfer and quantum friction.

  9. Waste Minimization Plans and activities in the MFD Plating Shop

    SciTech Connect (OSTI)

    Dini, J.W.; Steffani, C.P.

    1991-02-01T23:59:59.000Z

    The Plating Shop (Building 322), provides processes such as electroplating, electroless plating, anodizing, cleaning, etching, electroforming and chemical milling. We in MFD are committed to an active program on waste minimization, and the purpose of this document is to outline the plan of action. Our short range minimization goals are threefold: (1) Reduce our major waste stream by 90%, (2) Minimize discharge of rinse water to sewer system, and (3) Eliminate vapor degreasing in the shop. The intermediate goals consist of characterizing the waste streams and evaluating recovery processes. To do this, we first need to have the distillation unit operational and time to determine its effectiveness. If it proves to be as effective as we anticipate, we will perhaps purchase a second unit. Regardless, the streams that we can identify include: nickel, copper, rinses, acids, alkalies, electropolish and miscellaneous. Our goal is to utilize electrolytic processes to recover metals such as nickel and copper and processes such as ion exchange for some of the other streams. We intend to evaluate the full gamut of recycling processes available for these streams. We anticipate completing this phase of the minimization program by January 1993. The long range goal is zero discharge or since this could prove extremely difficult, development of processes that will allow us to produce a sludge cake that could be handled by our Hazardous Waste Management Group.

  10. A modified commercial scanner as an image plate for table-top optical applications

    SciTech Connect (OSTI)

    Casado-Rojo, S; Lorenzana, H E; Baonza, V G

    2008-12-09T23:59:59.000Z

    A reliable, accurate, and inexpensive optical detector for table-top applications is described here. Based on a commercial high resolution office scanner coupled to a projection on plate, it enables a large image plate surface, allowing recording of large images without systematic errors associated to coupling optics' aberrations. Several tests on distance-dependent and steady interference patterns will be presented and discussed. The extension to other types of optical measurement by substituting the projection on plate is proposed.

  11. Corrosion-resistant, electrically-conductive plate for use in a fuel cell stack

    DOE Patents [OSTI]

    Carter, J. David (Bolingbrook, IL); Mawdsley, Jennifer R. (Woodridge, IL); Niyogi, Suhas (Woodridge, IL); Wang, Xiaoping (Naperville, IL); Cruse, Terry (Lisle, IL); Santos, Lilia (Lombard, IL)

    2010-04-20T23:59:59.000Z

    A corrosion resistant, electrically-conductive, durable plate at least partially coated with an anchor coating and a corrosion resistant coating. The corrosion resistant coating made of at least a polymer and a plurality of corrosion resistant particles each having a surface area between about 1-20 m.sup.2/g and a diameter less than about 10 microns. Preferably, the plate is used as a bipolar plate in a proton exchange membrane (PEMFC) fuel cell stack.

  12. Extending the reach of axion-photon regeneration experiments towards larger masses with phase shift plates

    E-Print Network [OSTI]

    Joerg Jaeckel; Andreas Ringwald

    2007-06-05T23:59:59.000Z

    We present a scheme to extend the sensitivity of axion-photon regeneration experiments towards larger masses with the help of properly chosen and placed phase shift plates.

  13. Effective bending stiffness for plates with microcracks D. C. Simkins Jr, S. Li

    E-Print Network [OSTI]

    Li, Shaofan

    Effective bending stiffness for plates with microcracks D. C. Simkins Jr, S. Li Summary. C. Simkins Jr, S. Li (&) Department of Civil and Environmental Engineering, University of California

  14. SUMMARY OF AFIP FULL SIZED PLATE IRRADIATIONS IN THE ADVANCED TEST REACTOR

    SciTech Connect (OSTI)

    Robinson, Adam B; Wachs, Daniel M

    2010-03-01T23:59:59.000Z

    Recent testing at the Idaho National Laboratory has included four AFIP (ATR Full Size plate In center flux trap Position) experiments. These experiments included both dispersion plates and monolithic plates fabricated by both hot isostatic pressing and friction bonding utilizing both thermally sprayed inter-layers and zirconium barriers. These plates were tested between 100 and 350 w/cm2 at low temperatures and high burn-ups. The post irradiation exams performed have indicated good performance under the conditions tested and a summary of the findings and irradiation history are included herein.

  15. Delamination characterization of composite plates with holes/inclusions under general in-plane loading

    E-Print Network [OSTI]

    Bense, Ronald

    1989-01-01T23:59:59.000Z

    with an epoxy inclusion Interlaminar normal stress along the interfaces for uniform biaxial loading of a. plate with a graphite/epoxy inclusion Interlaminar shea. r stress r, along the interfaces for uniform biaxial loading of a. plate with a graphite.../epoxy inclusion Interlaminar shear stress r, ?i along the interfaces for uniform biaxial loading of a, plate with a graphite/epoxy inclusion Interlaminar stresses through the thickness at the free edge for uniform biaxial loading of a. plate with a graphite...

  16. Upper Bound on Fidelity of Classical Sagnac Gyroscope

    E-Print Network [OSTI]

    Thomas B. Bahder

    2011-01-24T23:59:59.000Z

    Numerous quantum mechanical schemes have been proposed that are intended to improve the sensitivity to rotation provided by the classical Sagnac effect in gyroscopes. A general metric is needed that can compare the performance of the new quantum systems with the classical systems. The fidelity (Shannon mutual information between the measurement and the rotation rate) is proposed as a metric that is capable of this comparison. A theoretical upper bound is derived for the fidelity of an ideal classical Sagnac gyroscope. This upper bound for the classical Sagnac gyroscope should be used as a benchmark to compare the performance of proposed enhanced classical and quantum rotation sensors. In fact, the fidelity is general enough to compare the quality of two different apparatuses (two different experiments) that attempt to measure the same quantity.

  17. Diversity in the upper management of leading Texas contractors

    E-Print Network [OSTI]

    Lawrence, Anne Nicole

    2003-01-01T23:59:59.000Z

    Commission the power to go to the courts for implementation of the laws. The 1972 act extended an individual's right to sue in private actions to the right to sue against state and local governments as well. Previously, in 1963, the Equal Pay Act of 1963..., prejudice plus power, and discrimination (2000). It is upper management's responsibility to ensure that their company is diversified. "CEOs must be proactive [in] initiating and taking on the challenges inherent in managing a diverse workforce" (Work...

  18. EIS-0408: Upper Great Plains Wind Energy Programmatic EIS

    Broader source: Energy.gov [DOE]

    This EIS, being prepared jointly by DOE's Western Area Power Administration and the Department of the Interiors Fish and Wildlife Service, will evaluate the environmental impacts of wind energy development in Iowa, Minnesota, Montana, Nebraska, North Dakota, and South Dakota Westerns Upper Great Plains customer service region. Western will use the EIS to implement a comprehensive regional program to manage interconnection requests for wind energy projects.

  19. High upper critical field in disordered niobium nitride superconductor

    SciTech Connect (OSTI)

    Baskaran, R., E-mail: baskaran@igcar.gov.in; Thanikai Arasu, A. V.; Amaladass, E. P.; Janawadkar, M. P. [Materials Science Group, IGCAR, Kalpakkam-603102 (India)

    2014-10-28T23:59:59.000Z

    Superconducting Niobium Nitride thin films have been deposited on glass, aluminum nitride buffered glass, and oxidized silicon substrates by reactive DC magnetron sputtering at ambient substrate temperatures. The crystal structure of these thin films has been determined to be cubic fcc B1 structure by Glancing Incidence X-Ray Diffraction analysis. The superconducting transition temperatures of the thin films were measured to be greater than 11.6?K with a maximum of 13.4?K. The negative temperature coefficient of resistance observed in these thin films indicates the presence of disorder. Magneto-resistance measurements have been carried out on these thin films patterned into standard four probe geometry upto a maximum magnetic field of 12?T for two films and upto 15?T for the other two films. The dependence of transition temperature on the applied field is analyzed to estimate the upper critical field. The upper critical field for most of the films was estimated to exceed 35?T, while one of the most disordered films had an estimated upper critical field greater than 70?T.

  20. Collimator application for microchannel plate image intensifier resolution improvement

    DOE Patents [OSTI]

    Thomas, Stanley W. (Livermore, CA)

    1996-02-27T23:59:59.000Z

    A collimator is included in a microchannel plate image intensifier (MCPI). Collimators can be useful in improving resolution of MCPIs by eliminating the scattered electron problem and by limiting the transverse energy of electrons reaching the screen. Due to its optical absorption, a collimator will also increase the extinction ratio of an intensifier by approximately an order of magnitude. Additionally, the smooth surface of the collimator will permit a higher focusing field to be employed in the MCP-to-collimator region than is currently permitted in the MCP-to-screen region by the relatively rough and fragile aluminum layer covering the screen. Coating the MCP and collimator surfaces with aluminum oxide appears to permit additional significant increases in the field strength, resulting in better resolution.

  1. Optimal control of plate shape with incompatible strain fields

    E-Print Network [OSTI]

    Gareth Wyn Jones; L. Mahadevan

    2014-12-22T23:59:59.000Z

    A flat plate can bend into a curved surface if it experiences an inhomogeneous growth field. In this article a method is described that numerically determines the optimal growth field giving rise to an arbitrary target shape, optimizing for closeness to the target shape and for growth field smoothness. Numerical solutions are presented, for the full non-symmetric case as well as for simplified one-dimensional and axisymmetric geometries. This system can also be solved semi-analytically by positing an ansatz for the deformation and growth fields in a circular disk with given thickness profile. Paraboloidal, cylindrical and saddle-shaped target shapes are presented as examples, of which the last two exemplify a soft mode arising from a non-axisymmetric deformation of a structure with axisymmetric material properties.

  2. Oscillation modes of dc microdischarges with parallel-plate geometry

    E-Print Network [OSTI]

    Stefanovi?, Ilija; koro, Nikola; Mari?, Dragana; Petrovi?, Zoran Lj; Winter, Jrg

    2011-01-01T23:59:59.000Z

    Two different oscillation modes in microdischarge with parallel-plate geometry has been observed: relaxation oscillations with frequency range between 1.23 and 2.1 kHz and free-running oscillations with 7 kHz frequency. The oscillation modes are induced by increasing power supply voltage or discharge current. For a given power supply voltage, there is a spontaneous transition from one to other oscillation mode and vice versa. Before the transition from relaxation to free-running oscillations, the spontaneous increase of oscillation frequency of relaxation oscillations form 1.3 kHz to 2.1 kHz is measured. Fourier Transform Spectra of relaxation oscillations reveal chaotic behaviour of microdischarge. Volt-Ampere characteristics associated with relaxation oscillations describes periodical transition between low current, diffuse discharge and normal glow. However, free-running oscillations appear in subnormal glow only.

  3. Sensor network based vehicle classification and license plate identification system

    SciTech Connect (OSTI)

    Frigo, Janette Rose [Los Alamos National Laboratory; Brennan, Sean M [Los Alamos National Laboratory; Rosten, Edward J [Los Alamos National Laboratory; Raby, Eric Y [Los Alamos National Laboratory; Kulathumani, Vinod K [WEST VIRGINIA UNIV.

    2009-01-01T23:59:59.000Z

    Typically, for energy efficiency and scalability purposes, sensor networks have been used in the context of environmental and traffic monitoring applications in which operations at the sensor level are not computationally intensive. But increasingly, sensor network applications require data and compute intensive sensors such video cameras and microphones. In this paper, we describe the design and implementation of two such systems: a vehicle classifier based on acoustic signals and a license plate identification system using a camera. The systems are implemented in an energy-efficient manner to the extent possible using commercially available hardware, the Mica motes and the Stargate platform. Our experience in designing these systems leads us to consider an alternate more flexible, modular, low-power mote architecture that uses a combination of FPGAs, specialized embedded processing units and sensor data acquisition systems.

  4. System Advisor Model: Flat Plate Photovoltaic Performance Modeling Validation Report

    SciTech Connect (OSTI)

    Freeman, J.; Whitmore, J.; Kaffine, L.; Blair, N.; Dobos, A. P.

    2013-12-01T23:59:59.000Z

    The System Advisor Model (SAM) is a free software tool that performs detailed analysis of both system performance and system financing for a variety of renewable energy technologies. This report provides detailed validation of the SAM flat plate photovoltaic performance model by comparing SAM-modeled PV system generation data to actual measured production data for nine PV systems ranging from 75 kW to greater than 25 MW in size. The results show strong agreement between SAM predictions and field data, with annualized prediction error below 3% for all fixed tilt cases and below 8% for all one axis tracked cases. The analysis concludes that snow cover and system outages are the primary sources of disagreement, and other deviations resulting from seasonal biases in the irradiation models and one axis tracking issues are discussed in detail.

  5. Surface modified stainless steels for PEM fuel cell bipolar plates

    DOE Patents [OSTI]

    Brady, Michael P [Oak Ridge, TN; Wang, Heli [Littleton, CO; Turner, John A [Littleton, CO

    2007-07-24T23:59:59.000Z

    A nitridation treated stainless steel article (such as a bipolar plate for a proton exchange membrane fuel cell) having lower interfacial contact electrical resistance and better corrosion resistance than an untreated stainless steel article is disclosed. The treated stainless steel article has a surface layer including nitrogen-modified chromium-base oxide and precipitates of chromium nitride formed during nitridation wherein oxygen is present in the surface layer at a greater concentration than nitrogen. The surface layer may further include precipitates of titanium nitride and/or aluminum oxide. The surface layer in the treated article is chemically heterogeneous surface rather than a uniform or semi-uniform surface layer exclusively rich in chromium, titanium or aluminum. The precipitates of titanium nitride and/or aluminum oxide are formed by the nitriding treatment wherein titanium and/or aluminum in the stainless steel are segregated to the surface layer in forms that exhibit a low contact resistance and good corrosion resistance.

  6. Fourier analysis of wave turbulence in a thin elastic plate

    E-Print Network [OSTI]

    Nicolas Mordant

    2010-06-18T23:59:59.000Z

    The spatio-temporal dynamics of the deformation of a vibrated plate is measured by a high speed Fourier transform profilometry technique. The space-time Fourier spectrum is analyzed. It displays a behavior consistent with the premises of the Weak Turbulence theory. A isotropic continuous spectrum of waves is excited with a non linear dispersion relation slightly shifted from the linear dispersion relation. The spectral width of the dispersion relation is also measured. The non linearity of this system is weak as expected from the theory. Finite size effects are discussed. Despite a qualitative agreement with the theory, a quantitative mismatch is observed which origin may be due to the dissipation that ultimately absorbs the energy flux of the Kolmogorov-Zakharov casade.

  7. Study of electroless nickel plating of ceramic particles

    SciTech Connect (OSTI)

    Deuis, R.L.; Subramanian, C.; Strafford, K.N.; Arora, P. [Univ. of South Australia (Australia)] [Univ. of South Australia (Australia); Yellup, J.M. [CSIRO, Woodville North, South Australia (Australia). Div. of Manufacturing Technology] [CSIRO, Woodville North, South Australia (Australia). Div. of Manufacturing Technology

    1995-10-15T23:59:59.000Z

    In the production of aluminum-based metal matrix composites (MMC), the wettability of the reinforcement particulates by the matrix is an important factor. The manufacture of MMC reinforced with alumina particles require the use of specialized fabrication techniques such as rheocasting in order to achieve effective particle incorporation. Several surface treatments have been applied to alumina and other reinforcement particulates in order to modify particle wettability. The aim of this study was to investigate the deposition of Ni-P onto several ceramic particulate surfaces without the use of the conventional sensitization and activation steps. This nickel plating treatment, had the potential to improve the incorporation of alumina particles in aluminum melts, with respect to MMC formation by the plasma transferred arc (PTA) surfacing process.

  8. Phase plate technology for laser marking of magnetic discs

    DOE Patents [OSTI]

    Neuman, Bill (Livermore, CA); Honig, John (Livermore, CA); Hackel, Lloyd (Livermore, CA); Dane, C. Brent (Livermore, CA); Dixit, Shamasundar (Livermore, CA)

    1998-01-01T23:59:59.000Z

    An advanced design for a phase plate enables the distribution of spots in arbitrarily shaped patterns with very high uniformity and with a continuously or near-continuously varying phase pattern. A continuous phase pattern eliminates large phase jumps typically expected in a grating that provides arbitrary shapes. Large phase jumps increase scattered light outside of the desired pattern, reduce efficiency and can make the grating difficult to manufacture. When manufacturing capabilities preclude producing a fully continuous grating, the present design can be easily adapted to minimize manufacturing errors and maintain high efficiencies. This continuous grating is significantly more efficient than previously described Dammann gratings, offers much more flexibility in generating spot patterns and is easier to manufacture and replicate than a multi-level phase grating.

  9. Phase plate technology for laser marking of magnetic discs

    DOE Patents [OSTI]

    Neuman, B.; Honig, J.; Hackel, L.; Dane, C.B.; Dixit, S.

    1998-10-27T23:59:59.000Z

    An advanced design for a phase plate enables the distribution of spots in arbitrarily shaped patterns with very high uniformity and with a continuously or near-continuously varying phase pattern. A continuous phase pattern eliminates large phase jumps typically expected in a grating that provides arbitrary shapes. Large phase jumps increase scattered light outside of the desired pattern, reduce efficiency and can make the grating difficult to manufacture. When manufacturing capabilities preclude producing a fully continuous grating, the present design can be easily adapted to minimize manufacturing errors and maintain high efficiencies. This continuous grating is significantly more efficient than previously described Dammann gratings, offers much more flexibility in generating spot patterns and is easier to manufacture and replicate than a multi-level phase grating. 3 figs.

  10. Drying studies for corroded DOE aluminum plate fuels

    SciTech Connect (OSTI)

    Lords, R.E.; Windes, W.E. [Idaho National Engineering Lab., Idaho Falls, ID (United States); Crepeau, J.C.; Sidwell, R.W. [Idaho Univ., Idaho Falls, ID (United States) Dept. of Mechanical Engineering

    1996-05-01T23:59:59.000Z

    The Idaho National Engineering Laboratory (INEL) currently stores a wide variety of spent nuclear fuel. The fuel was originally intended to be stored underwater for a short period of thermal cooling, then removed and reprocessed. However, it has been stored underwater for much longer thank originally anticipated. During this time dust and airborne desert soil have entered the oldest INEL pool, accumulating on the fuel. Also, the aluminum fuel cladding has corroded compromising the exposed surfaces of the fuel. Plans are now underway to move some the the more vulnerable aluminum plate type fuels into dry storage in an existing vented and filtered fuel storage facility. In preparation for dry storage of the fuel a drying and canning station is being built at the INEL. The two primary objectives of this facility are to determine the influence of corrosion products on the drying process and to establish temperature distribution inside the canister during heating.

  11. EVALUATION OF U10MO FUEL PLATE IRRADIATION BEHAVIOR VIA NUMERICAL AND EXPERIMENTAL BENCHMARKING

    SciTech Connect (OSTI)

    Samuel J. Miller; Hakan Ozaltun

    2012-11-01T23:59:59.000Z

    This article analyzes dimensional changes due to irradiation of monolithic plate-type nuclear fuel and compares results with finite element analysis of the plates during fabrication and irradiation. Monolithic fuel plates tested in the Advanced Test Reactor (ATR) at Idaho National Lab (INL) are being used to benchmark proposed fuel performance for several high power research reactors. Post-irradiation metallographic images of plates sectioned at the midpoint were analyzed to determine dimensional changes of the fuel and the cladding response. A constitutive model of the fabrication process and irradiation behavior of the tested plates was developed using the general purpose commercial finite element analysis package, Abaqus. Using calculated burn-up profiles of irradiated plates to model the power distribution and including irradiation behaviors such as swelling and irradiation enhanced creep, model simulations allow analysis of plate parameters that are either impossible or infeasible in an experimental setting. The development and progression of fabrication induced stress concentrations at the plate edges was of primary interest, as these locations have a unique stress profile during irradiation. Additionally, comparison between 2D and 3D models was performed to optimize analysis methodology. In particular, the ability of 2D and 3D models account for out of plane stresses which result in 3-dimensional creep behavior that is a product of these components. Results show that assumptions made in 2D models for the out-of-plane stresses and strains cannot capture the 3-dimensional physics accurately and thus 2D approximations are not computationally accurate. Stress-strain fields are dependent on plate geometry and irradiation conditions, thus, if stress based criteria is used to predict plate behavior (as opposed to material impurities, fine micro-structural defects, or sharp power gradients), unique 3D finite element formulation for each plate is required.

  12. Sphere-plate Casimir interaction in (D + 1)-dimensional spacetime

    SciTech Connect (OSTI)

    Teo, L. P., E-mail: LeePeng.Teo@nottingham.edu.my [Department of Applied Mathematics, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan (Malaysia)

    2014-04-15T23:59:59.000Z

    In this paper, we derive the formula for the Casimir interaction energy between a sphere and a plate in (D + 1)-dimensional Minkowski spacetime. It is assumed that the scalar field satisfies the Dirichlet or Neumann boundary conditions on the sphere and the plate. As in the D = 3 case, the formula is of TGTG type. One of our main contributions is deriving the translation matrices which express the change of bases between plane waves and spherical waves for general D. Using orthogonality of Gegenbauer polynomials, it turns out that the final TGTG formula for the Casimir interaction energy can be simplified to one that is similar to the D = 3 case. To illustrate the application of the formula, both large separation and small separation asymptotic behaviors of the Casimir interaction energy are computed. The large separation leading term is proportional to L{sup ?D+1} if the sphere is imposed with Dirichlet boundary condition, and to L{sup ?D?1} if the sphere is imposed with Neumann boundary condition, where L is distance from the center of the sphere to the plane. For the small separation asymptotic behavior, it is shown that the leading term is equal to the one obtained using proximity force approximation. The next-to-leading order term is also computed using perturbation method. It is shown that when the space dimension D is larger than 5, the next-to-leading order has sign opposite to the leading order term. Moreover, the ratio of the next-to-leading order term to the leading order term is linear in D, indicating a larger correction at higher dimensions.

  13. Modeling pore corrosion in normally open gold- plated copper connectors.

    SciTech Connect (OSTI)

    Battaile, Corbett Chandler; Moffat, Harry K.; Sun, Amy Cha-Tien; Enos, David George; Serna, Lysle M.; Sorensen, Neil Robert

    2008-09-01T23:59:59.000Z

    The goal of this study is to model the electrical response of gold plated copper electrical contacts exposed to a mixed flowing gas stream consisting of air containing 10 ppb H{sub 2}S at 30 C and a relative humidity of 70%. This environment accelerates the attack normally observed in a light industrial environment (essentially a simplified version of the Battelle Class 2 environment). Corrosion rates were quantified by measuring the corrosion site density, size distribution, and the macroscopic electrical resistance of the aged surface as a function of exposure time. A pore corrosion numerical model was used to predict both the growth of copper sulfide corrosion product which blooms through defects in the gold layer and the resulting electrical contact resistance of the aged surface. Assumptions about the distribution of defects in the noble metal plating and the mechanism for how corrosion blooms affect electrical contact resistance were needed to complete the numerical model. Comparisons are made to the experimentally observed number density of corrosion sites, the size distribution of corrosion product blooms, and the cumulative probability distribution of the electrical contact resistance. Experimentally, the bloom site density increases as a function of time, whereas the bloom size distribution remains relatively independent of time. These two effects are included in the numerical model by adding a corrosion initiation probability proportional to the surface area along with a probability for bloom-growth extinction proportional to the corrosion product bloom volume. The cumulative probability distribution of electrical resistance becomes skewed as exposure time increases. While the electrical contact resistance increases as a function of time for a fraction of the bloom population, the median value remains relatively unchanged. In order to model this behavior, the resistance calculated for large blooms has been weighted more heavily.

  14. Cognitive Issues in Upper-Division Electricity & Magnetism Steven J. Pollock

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    interventions at the upper division. Keywords: physics education research, course reform, electricityCognitive Issues in Upper-Division Electricity & Magnetism Steven J. Pollock and Stephanie V. Chasteen* * Science Education Initiative, University of Colorado, Boulder, CO 80309, USA Department

  15. Upper Adjoints for Fast Interprocedural Variable Markus MullerOlm 1 and Helmut Seidl 2

    E-Print Network [OSTI]

    Müller-Olm, Markus

    Upper Adjoints for Fast Inter­procedural Variable Equalities Markus M?uller­Olm 1 and Helmut Seidl

  16. PROPAGATION OF A-WAVE IN A PLANE PLATE EXPERIMENTAL STUDY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PROPAGATION OF A-WAVE IN A PLANE PLATE EXPERIMENTAL STUDY Loïc MARTINEZ Jean DUCLOS Alain TINEL ABSTRACT The propagation of the A-wave is investigated theoretically on a plane brass plate completly a wide development over these ten last years. These studies show that an incident plane wave propagating

  17. Image plates as x-ray detectors in plasma physics experiments

    SciTech Connect (OSTI)

    Gales, S.G.; Bentley, C.D. [AWE Aldermaston, Reading RG7 4PR (United Kingdom)

    2004-10-01T23:59:59.000Z

    The performance of image plates based on the photostimulable phosphor BaF(Br,l):Eu{sup 2+} has been investigated and compared with x-ray film. Evaluation of detective quantum efficiency (DQE), sensitivity, dynamic range, and linearity was carried out for several types of commercially available image plate, using the Excalibur soft x-ray calibration facility at AWE. Image plate response was found to be linear over a dynamic range of 5 orders of magnitude. One type of image plate was found to have a number of advantages for soft x-ray detection, with a measured sensitivity 1 order of magnitude greater than that of Kodak Industrex CX and DEF-5 x-ray film. The DQE of this plate was found to be superior to that of film at low [less than 10{sup 3} photons/(50 {mu}m){sup 2}] and high fluxes [greater than 10{sup 4} photons/(50 {mu}m){sup 2}]. The spatial resolution of image plates, scanned with several models of commercial image plate readers, has been evaluated using a USAF resolution test target. The highest spatial resolution measured is 35 {mu}m. Though this is significantly lower than the resolution possible with film, it is sufficient for many applications. Image plates were fielded in a refractive x-ray lens imaging diagnostic on the 1 TW Helen laser and these results are discussed.

  18. Peel and Shear Fracture Characterization of Debonding in FRP Plated Concrete Affected by Moisture

    E-Print Network [OSTI]

    Entekhabi, Dara

    polymer CFRP plated concrete systems by mechanically testing accelerated moisture conditioned mesoscalePeel and Shear Fracture Characterization of Debonding in FRP Plated Concrete Affected by Moisture fracture toughness as the quantification parameter of the CFRP-epoxy-concrete trilayer system, which

  19. Surface plasmons of a graphene parallel plate waveguide bounded by Kerr-type nonlinear media

    E-Print Network [OSTI]

    Leung, Pui-Tak "Peter"

    Surface plasmons of a graphene parallel plate waveguide bounded by Kerr-type nonlinear media H by a graphene parallel plate waveguide (PPWG), surrounded on one or both sides by Kerr-type nonlinear media unchanged, as compared to those of a typical graphene PPWG. Moreover, PL and LL of the SPs are considerably

  20. Can the transition zone test the Plate and Plume hypotheses? Gillian R. Foulger

    E-Print Network [OSTI]

    Foulger, G. R.

    Can the transition zone test the Plate and Plume hypotheses? Gillian R. Foulger Dept. Earth wave-speed anomalies above, within and below the transition zone. The Plate model, in contrast and on into the transition zone, but rarely, if ever, deeper and through the 660-km discontinuity. The 410-km discontinuity

  1. Plasma-accelerated flyer-plates for equation of state studies

    SciTech Connect (OSTI)

    Fratanduono, D. E.; Smith, R. F.; Eggert, J. H.; Braun, D. G.; Collins, G. W. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Boehly, T. R. [Laboratory for Laser Energetic, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)

    2012-07-15T23:59:59.000Z

    We report on a new technique to accelerate flyer-plates to high velocities ({approx}5 km/s). In this work, a strong shock is created through direct laser ablation of a thin polyimide foil. Subsequent shock breakout of that foil results in the generation of a plasma characterized by a smoothly increasing density gradient and a strong forward momentum. Stagnation of this plasma onto an aluminum foil and the resultant momentum transfer accelerates a thin aluminum flyer-plate. The aluminum flyer-plate is then accelerated to a peak velocity of {approx}5 km/s before impact with a transparent lithium fluoride (LiF) window. Simulations of the stagnating plasma ramp compression and wave reverberations within the flyer-plate suggest that the temperature at the flyer-plate impact surface is elevated by less than 50 Degree-Sign C. Optical velocimetry is used to measure the flyer-plate velocity and impact conditions enabling the shocked refractive index of LiF to be determined. The results presented here are in agreement with conventional flyer-plate measurements validating the use of plasma-accelerated flyer-plates for equation of state and impact studies.

  2. Plate interaction in the NE Caribbean subduction zone from continuous GPS observations

    E-Print Network [OSTI]

    ten Brink, Uri S.

    Plate interaction in the NE Caribbean subduction zone from continuous GPS observations Uri S. ten sites on NE Caribbean islands to evaluate strain accumulation along the North American (NA) ­ Caribbean-Venegas (2012), Plate interaction in the NE Caribbean subduction zone from continuous GPS observations, Geophys

  3. SPERT Destructive Test - I on Aluminum, Highly Enriched Plate Type Core

    ScienceCinema (OSTI)

    None

    2014-05-07T23:59:59.000Z

    SPERT - Special Power Excursion Reactor Tests Destructive Test number 1 On Aluminum, Highly Enriched Plate Type Core. A test studying the behavior of the reactor under destructive conditions on a light water moderated pool-type reactor with a plate-type core.

  4. Experimental estimations of viscoelastic properties of multilayer damped plates in broad-band frequency range

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    lightweighting structures for aeronautics, automotive or construction applications, the level of performance's modulus) of "polyethylene thermoplastic / aluminum" bilayer plates. The thermoplastic is chosen for its and manufacture Each plate is constituted of a first layer in aluminum (of thickness 2mm), on which a second layer

  5. Characterization of Spatter in Low-Current GMAW of Titanium Alloy Plate

    E-Print Network [OSTI]

    Eagar, Thomas W.

    ) ) ) Characterization of Spatter in Low-Current GMAW of Titanium Alloy Plate Stephen T. Eickhoff "Characterization of Spatter in Low-Current GMAW of Titanium Alloys Plate" Severe spattering occurs in low-current GMAW of titanium and titanium alloys. For example, 1.6 mm diameter Ti-6Al-4V filler wire spatters

  6. The Effects of pH Variation on Whisker Growth on Tin Plated Copper

    E-Print Network [OSTI]

    Collins, Gary S.

    The Effects of pH Variation on Whisker Growth on Tin Plated Copper Jeffrey Wu Advisors: Uttara Engineering Introduction: Field Failure Caused by Tin Whisker Short 20 YEARS Whiskers Growing Inside://nepp.nasa.gov/whisker/photos/pom/index.htm) Tin is an element commonly desired to plate on electrical components because of it's corrosion

  7. The Finite Element Analysis of Quartz Crystal Resonators with Nonlinear Plate Equations

    E-Print Network [OSTI]

    Wang, Ji

    The Finite Element Analysis of Quartz Crystal Resonators with Nonlinear Plate Equations Ji Wang1, dujianke, wanglihong}@nbu.edu.cn, yyong@rci.rutgers.edu Abstract--The finite element analysis of quartz for typical thickness-shear vibrations of quartz crystal plates. While linear finite element analysis

  8. CORRELATING EVAPORATION HEAT TRANSFER COEFFICIENT OF REFRIGERANT R-134a IN A PLATE HEAT EXCHANGER

    E-Print Network [OSTI]

    Kandlikar, Satish

    1 CORRELATING EVAPORATION HEAT TRANSFER COEFFICIENT OF REFRIGERANT R-134a IN A PLATE HEAT EXCHANGER for evaporation heat transfer coefficient of refrigerant R-134a flowing in a plate heat exchanger. Correlation schemes proposed by Yan and Lin (1999b) for modeling the heat transfer coefficient in both a single- phase

  9. Increased Hot-Plate Ignition Probability for Nanoparticle-Laden Diesel Fuel

    E-Print Network [OSTI]

    Pacheco, Jose Rafael

    Increased Hot-Plate Ignition Probability for Nanoparticle-Laden Diesel Fuel Himanshu Tyagi, Patrick April 2, 2008 ABSTRACT The present study attempts to improve the ignition properties of diesel fuel, droplet ignition experiments were carried out atop a heated hot plate. Different types of fuel mixtures

  10. Experimental investigation of response of monolithic and bilayer plates to impulsive loads

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    their blast resistance. We have examined the effectiveness of this approach, focusing on the question) or on the back face of the steel plate would provide a more effective blast mitigating composite of the plate, it may actually enhance the destructive effect of the blast, promoting (rather than mitigating

  11. The Beef Nutrient Database Improvement Project: Retail Cuts From the Rib and Plate

    E-Print Network [OSTI]

    May, Laura

    2011-02-22T23:59:59.000Z

    for Standard Reference (SR). Twenty beef carcasses were selected from three different regions of the United States, and the rib and plate were collected for shipment via refrigerated truck to the Rosenthal Meat Science and Technology Center. Each rib and plate...

  12. A METHOD FOR IMAGING CORROSION DAMAGE IN THIN PLATES FROM ELECTROSTATIC DATA

    E-Print Network [OSTI]

    Santosa, Fadil

    A METHOD FOR IMAGING CORROSION DAMAGE IN THIN PLATES FROM ELECTROSTATIC DATA Peter G. Kaup 1 nondestructive evaluation of corrosion in plates is considered. The inpection method uses boundary measurements of currents and voltages to determine the material loss caused by corrosion. The development of the method

  13. Steady-State Modeling of a Parallel-Plate Electrochemical Fluorination Reactor

    E-Print Network [OSTI]

    Weidner, John W.

    Steady-State Modeling of a Parallel-Plate Electrochemical Fluorination Reactor Kamal Jha *,a Gerald, Minnesota 55144-1000, USA ABSTRACT A steady-state mathematical model of a parallel-plate reactor balances. Profiles of temperature, pressure, vapor volume fraction, and current density in the reactor

  14. Steel Plate Shear Walls From Research to Codification Jeffrey W. Berman1

    E-Print Network [OSTI]

    Bruneau, Michel

    of steel plate shear wall(s) (SPSW) design as these systems can be an attractive option for lateral load, the design limit state for SPSW was considered to be out-of-plane buckling of the infill panel. To prevent buckling, engineers designed steel walls with heavily stiffened infill plates that were not economically

  15. Horizontal subduction and truncation of the Cocos Plate beneath central Mexico

    E-Print Network [OSTI]

    Clayton, Robert W.

    Horizontal subduction and truncation of the Cocos Plate beneath central Mexico Xyoli Pe from a trans-Mexico temporary broadband seismic network centered on Mexico City, we report that the subducting Cocos Plate beneath central Mexico is horizontal, and tectonically underplates the base

  16. SECTION 34 Table of Contents 34 Upper Columbia Management Plan..............................................................2

    E-Print Network [OSTI]

    and formation of the Subbasin Work Teams and the process used to develop and adopt the management plan can34-1 SECTION 34 ­ Table of Contents 34 Upper Columbia Management Plan .........................................................................25 #12;34-2 34 Upper Columbia Management Plan The Upper Columbia Subbasin Management Plan

  17. Upper Digestive Disorders Approved by the UHS Patient Education Committee 02/2012

    E-Print Network [OSTI]

    Yener, Aylin

    Upper Digestive Disorders Approved by the UHS Patient Education Committee 02/2012 Revised 02/08/12 Page 1 of 2 Upper Digestive Tract Anatomy Esophagus: A long muscular tube in the chest area occurs in the duodenum. Upper Digestive Disorders Reflux with Esophagitis: The flowing back (or reflux

  18. CHEMICAL AND HYDROLOGIC DATA FROM THE CEMENT CREEK AND UPPER ANIMAS RIVER CONFLUENCE AND

    E-Print Network [OSTI]

    CHEMICAL AND HYDROLOGIC DATA FROM THE CEMENT CREEK AND UPPER ANIMAS RIVER CONFLUENCE AND MIXING.S. Geological Survey #12;CHEMICAL AND HYDROLOGIC DATA FROM THE CEMENT CREEK AND UPPER ANIMAS RIVER CONFLUENCE.H., Schemel, L.E., 2007, Chemical and hydrologic data form the Cement Creek and upper Animas River confluence

  19. Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal waters

    E-Print Network [OSTI]

    Lee, Zhongping

    Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal waters in the upper ocean, the vertical distribution of solar radiation (ESR) in the shortwave domain plays (2005), Penetration of solar radiation in the upper ocean: A numerical model for oceanic and coastal

  20. New code upper bounds from the Terwilliger algebra and semidefinite programming

    E-Print Network [OSTI]

    Schrijver, Alexander

    1 New code upper bounds from the Terwilliger algebra and semidefinite programming Alexander n and minimum distance at least d. It is based on block­diagonalising the Terwilliger alge­ bra, Terwilliger algebra, upper bounds. I. DESCRIPTION OF THE METHOD We present a new upper bound on A(n, d

  1. New code upper bounds from the Terwilliger algebra and semidefinite programming

    E-Print Network [OSTI]

    Schrijver, Alexander

    1 New code upper bounds from the Terwilliger algebra and semidefinite programming Alexander and minimum distance at least d. It is based on block-diagonalising the Terwilliger alge- bra of the Hamming, Terwilliger algebra, upper bounds. I. DESCRIPTION OF THE METHOD We present a new upper bound on A(n, d

  2. Testing upper motor neuron function in amyotrophic lateral sclerosis: the most difficult

    E-Print Network [OSTI]

    Cooper, Robin L.

    Testing upper motor neuron function in amyotrophic lateral sclerosis: the most difficult task of neurophysiology Clinical signs of upper motor neuron involvement are an essential observation to support the diagnosis of amyotrophic lateral scler- osis. However, clinical signs of upper motor neuron can be difficult

  3. Simultaneous laser cutting and welding of metal foil to edge of a plate

    DOE Patents [OSTI]

    Pernicka, John C. (Fort Collins, CO); Benson, David K. (Golden, CO); Tracy, C. Edwin (Golden, CO)

    1996-01-01T23:59:59.000Z

    A method of welding an ultra-thin foil to the edge of a thicker sheet to form a vacuum insulation panel comprising the steps of providing an ultra-thin foil having a thickness less than 0.002, providing a top plate having an edge and a bottom plate having an edge, clamping the foil to the edge of the plate wherein the clamps act as heat sinks to distribute heat through the foil, providing a laser, moving the laser relative to the foil and the plate edges to form overlapping weld beads to weld the foil to the plate edges while simultaneously cutting the foil along the weld line formed by the overlapping beads.

  4. Simultaneous laser cutting and welding of metal foil to edge of a plate

    DOE Patents [OSTI]

    Pernicka, J.C.; Benson, D.K.; Tracy, C.E.

    1996-03-19T23:59:59.000Z

    A method is described for welding an ultra-thin foil to the edge of a thicker sheet to form a vacuum insulation panel comprising the steps of providing an ultra-thin foil having a thickness less than 0.002, providing a top plate having an edge and a bottom plate having an edge, clamping the foil to the edge of the plate wherein the clamps act as heat sinks to distribute heat through the foil, providing a laser, moving the laser relative to the foil and the plate edges to form overlapping weld beads to weld the foil to the plate edges while simultaneously cutting the foil along the weld line formed by the overlapping beads. 7 figs.

  5. Mima mound grasslands of the upper coastal prairie of Texas

    E-Print Network [OSTI]

    Butler, Arlene Camille

    1979-01-01T23:59:59.000Z

    21 28 31 34 44 47 49 52 55 57 71 74 76 79 87 94 LlST OF TABLES Table Physical and chemical soil characteristics for topographic variations within 3 soil complexes of the upper Coastal Prairie, Texas Page 27 Average absolute... ~ ' ~ ~ ~ ~ ~ O O 8 z z O V) CO iU CC LU O D IZ 31 The landscape had less slope than on Aris-like stands. Intermounds on Crowley/Edna-like soils appear nearly level. Results of physical and chemical analysis were very similar to Aris-like soils...

  6. Biostratigraphy of the upper cretaceous Austin Group, Travis County, Texas

    E-Print Network [OSTI]

    Harris, William Maurice

    1982-01-01T23:59:59.000Z

    Formation is on the San Gabriel River at the Jonah-Hutto roadcrossing in Williamson County. At the type locality, the upper 35 feet of the Jonah is exposed; the lower 50 feet is exposed two-thirds of a mile upstream. 1he Jonah Formation ranges fr om 120... Forma- tion at Vinson Creek is 25 feet thick and the limestone beds are skeletal packstones. The thinning of the Jonah Formation is caused by the positive influence of the San Marcos Arch during deposition. 20 The contact between the Jonah Formation...

  7. Upper limits on stray force noise for LISA

    E-Print Network [OSTI]

    L. Carbone; A. Cavalleri; R. Dolesi; C. D. Hoyle; M. Hueller; S. Vitale; W. J. Weber

    2003-10-28T23:59:59.000Z

    We have developed a torsion pendulum facility for LISA gravitational reference sensor ground testing that allows us to put significant upper limits on residual stray forces exerted by LISA-like position sensors on a representative test mass and to characterize specific sources of disturbances for LISA. We present here the details of the facility, the experimental procedures used to maximize its sensitivity, and the techniques used to characterize the pendulum itself that allowed us to reach a torque sensitivity below 20 fNm /sqrt{Hz} from 0.3 to 10 mHz. We also discuss the implications of the obtained results for LISA.

  8. Sandia Energy - Upper Rio Grande Simulation Model (URGSiM)

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

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

  9. Upper Arlington, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga, IndianaTurtleCooperativeCROSS-VALIDATION OF SWERA'sUpper Arlington,

  10. Upper Division Hot Spring Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga, IndianaTurtleCooperativeCROSS-VALIDATION OF SWERA'sUpper

  11. Horizontal Plate Plate

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

    Description:...

  12. Upper bound on the cutoff in the Standard Model

    E-Print Network [OSTI]

    Veselov, A I

    2009-01-01T23:59:59.000Z

    The main objective of this presentation is to point out that the Upper bound on the cutoff in lattice Electroweak theory is still unknown. The consideration of the continuum theory is based on the perturbation expansion around trivial vacuum. The internal structure of the lattice Weinberg - Salam model may appear to be more complicated especially in the region of the phase diagram close to the phase transition between the physical Higgs phase and the unphysical symmetric phase of the lattice model, where the continuum physics is to be approached. We represent the results of our numerical investigation of the quenched model at infinite bare scalar self coupling $\\lambda$. These results demonstrate that at $\\lambda = \\infty$ the upper bound on the cutoff is around $\\frac{\\pi}{a} = 1.4$ Tev. The preliminary results for finite $\\lambda$ are also presented. Basing on these results we cannot yet make a definite conclusion on the maximal value of the cutoff admitted in the lattice model, although we have found that ...

  13. Coupling between JET Pedestal ne-Te and Outer Target Plate Recycling: Consequences for JET ITER-Like-Wall Operation

    E-Print Network [OSTI]

    Coupling between JET Pedestal ne-Te and Outer Target Plate Recycling: Consequences for JET ITER-Like-Wall Operation

  14. Standard practice for evaluating absorptive solar receiver materials when exposed to conditions simulating stagnation in solar collectors with cover plates

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    1986-01-01T23:59:59.000Z

    Standard practice for evaluating absorptive solar receiver materials when exposed to conditions simulating stagnation in solar collectors with cover plates

  15. Results of fracture mechanics tests on PNC SUS 304 plate

    SciTech Connect (OSTI)

    Mills, W.J.; James, L.A.; Blackburn, L.D.

    1985-08-01T23:59:59.000Z

    PNC provided SUS 304 plate to be irradiated in FFTF at about 400/sup 0/C to a target fluence of 5 x 10/sup 21/ n/cm/sup 2/ (E > 0.1 MeV). The actual irradiation included two basically different exposure levels to assure that information would be available for the exposure of interest. After irradiation, tensile properties, fatigue-crack growth rates and J-integral fracture toughness response were determined. These same properties were also measured for the unirradiated material so radiation damage effects could be characterized. This report presents the results of this program. It is expected that these results would be applicable for detailed fracture analysis of reactor components. Recent advances in elastic-plastic fracture mechanics enable reasonably accurate predictions of failure conditions for flawed stainless steel components. Extensive research has focused on the development of J-integral-based engineering approach for assessing the load carrying capacity of low-strength, high-toughness structural materials. Furthermore, Kanninen, et al., have demonstrated that J-integral concepts can accurately predict the fracture response for full-scale cracked structures manufactured from Type 304 stainless steel.

  16. Ultrafast gating of proximity-focused microchannel-plate intensifiers

    SciTech Connect (OSTI)

    Lundy, A.S.; Iverson, A.E.

    1982-01-01T23:59:59.000Z

    Proximity-focused, microchannel-plate (MCP) image intensifiers have been used at Los Alamos for many years to allow single frame film and video exposure times in the range of 2.5 to 10 ns. There is now a program to reduce gating times to < 1 ns. This paper reviews previous work and the problems in achieving good resolution with gating times of < 1 ns. The key problems involve applying fast electrical gating signals to the tube elements. We present computer modeling studies of the combined tube, tube connection, and pulser system and show that low photocathode surface resistivity must be obtained to permit fast gating between the photocathode and the MCP input. We discuss ways of making low-resistivity S20 photocathodes, using gallium arsenide photocathodes, and various means of gating the tubes. A variety of pulser designs are being experimentally evaluated including spark gaps, avalanche transistors, Krytron tubes with sharpening gaps, step recovery diodes, and photoconductive elements (PCEs). The results of these studies are presented. Because of the high capacitances involved in most gating schemes, the tube connection geometry must be of low-impedance design, and our solution is presented. Finally, ways of testing these high-speed camera systems are discussed.

  17. Target Plate Conditions During Stochastic Boundary Operation on DIII-D

    SciTech Connect (OSTI)

    Watkins, J; Evans, T; Moyer, R; Lasnier, C; Rudakov, D

    2006-05-15T23:59:59.000Z

    A major concern for large tokamaks like ITER is the presence of edge localized modes (ELMs) that repeatedly send large bursts of particles and heat into the divertor plates. Operation with resonant magnetic perturbations (RMP) at the boundary of DIII=D has suppressed ELMs for values of q95 {approx} 3.7. At the target plate, the conditions during ELM suppressed operation for both high and low collisionality are observed by a set of radially distributed Langmuir probes. At high collisionality (n*{approx}1), the target plate particle flux and temperature drops by > 30% during ELM suppression. At low collisionality (n*{approx}0.1), the core density, target plate density, and target plate particle flux drop but the plate electron temperature increases after the ELMs are suppressed. The ELM-suppressed target plate heat flux is nearly the same as the heat flux between ELMs but the (5X higher) transient heat flux peaks due to ELMs are eliminated.

  18. Laser/matter interactions by laser-launched plates and direct laser shocks

    SciTech Connect (OSTI)

    Paisley, Dennis L.; Swift, D. C. (Damian C.); Kopp, R. A. (Roger A.); Montgomery, D. S. (David S.); Johnson, R. P. (Randall P.); Munson, C. P. (Carter P.); Letzring, S. A. (Samuel A.); Niemczura, J. G. (Johnathan G.)

    2003-01-01T23:59:59.000Z

    Explosives, gas guns, laser-launched flyer plates, and direct laser-irradiation can be used to generate shocks and high-stress in materials. Each method has a unique diameter and thickness of shock that can be generated. In past years, small laboratory lasers have been used to launch flyer plates 2 - 200-pm thick to terminal velocities 0.1 to 5 k d s . Over the past few years we have been using our TRIDENT laser facility (1kJ in 0.2 to 2ps) to accelerate larger diameter (8 mm) and thicker (0.1 - 1.5 mm) flyer plates. These larger diameters and thicker one-dimensional plates more closely compliment traditional experimental methods such as gas guns. The 8-mm diameter and 1-mm thick flyer plates can impart shocks in metals for constitutive dynamic property measurements. The versatility of laser-driven plates permits spatial and temporal profiles of the flyer plate impact on sample targets. LASNEX models and parameters of the laser drive can be used to optimize optical coupling efficiency. The flyer plate launch, acceleration, terminal velocity, and, depending on the experiment, flyer plate impact on to target materials are recorded using point-interferometry (VISAR), and line-imaging interferometry. These high speed optical and laser experimental methods will be described along with ancillary methods, and material data. Constitutive properties of bulk materials, rate effects, and grain size and/or orientation have been studied for several metals including copper, beryllium, gold, and some alloys.

  19. Method and apparatus for actively controlling a micro-scale flexural plate wave device

    DOE Patents [OSTI]

    Dohner, Jeffrey L. (Albuquerque, NM)

    2001-01-01T23:59:59.000Z

    An actively controlled flexural plate wave device provides a micro-scale pump. A method of actively controlling a flexural plate wave device produces traveling waves in the device by coordinating the interaction of a magnetic field with actively controlled currents. An actively-controlled flexural plate wave device can be placed in a fluid channel and adapted for use as a micro-scale fluid pump to cool or drive micro-scale systems, for example, micro-chips, micro-electrical-mechanical devices, micro-fluid circuits, or micro-scale chemical analysis devices.

  20. A parametric analysis of bone fixation plates on fractured equine third metacarpal

    E-Print Network [OSTI]

    Ray, Donald Reagan

    1970-01-01T23:59:59.000Z

    of metallic materials, were also being investigated and tried clinically. The earliesr types of metal plates to be used were made of nickel-steel, iron, or silver (1). These early plates were generally attached to the fractured Numbers in parentheses...A P~TRIC ANALYSIS OI' BONE FIXATION PLATES ON FRACTURED EQUINE THIRD lKTACARPAL A Thesis by Donald Reagan Ray Submitted to tnk Graduate College of Texas A&N University in partial fulfillment of the requirement for the degree of MASTER...

  1. Depositional environments of Pennsylvanian Upper Strawn Group in McCulloch and San Saba Counties, Texas

    SciTech Connect (OSTI)

    Jamieson, W.H. Jr.

    1983-03-01T23:59:59.000Z

    Upper Strawn Group (Desmoinesean) represents a transition to fluvial facies from progradational deltaic facies. The lower part of the upper Strawn is composed mostly of horizontally bedded, fine-grained sandstones and shales of a distal delta-front origin. These sandstones and shales exhibit foreset bed dips of up to 15/sup 0/. In addition to the dipping foreset beds, the delta-front facies on occasion contain small listric normal faults, resulting from periodic higher rates of sedimentation. The middle parts of the upper Strawn consist predominantly of massive, fine to medium-grained, mature sandstones which represent distributary-mouth-bar deposits, as well as other proximal delta-front deposits such as distributary channels. The upper part of the upper Strawn consists of fluvial trough cross-bedded sandstones and chert-pebble conglomerates. These overlie the deltaic facies and indicate the final stages of upper Strawn deposition. The upper Strawn is overlain by the Adams Branch limestone and shales which represent marine transgression and subsequent shallow-marine deposition. The upper Strawn Group in McCulloch and San Saba Counties, Texas, represents continued filling of the Fort Worth basin during Desmoinesean time. The upper Strawn overlies the lower Strawn, an older, deeper water facies, in most parts of the study area. The upper Strawn overlies the Atokan age Marble Falls Limestone in an isolated section of the study area due to its position there on the Concho arch.

  2. Free Energies of Dilute Bose gases: upper bound

    E-Print Network [OSTI]

    Jun Yin

    2010-12-19T23:59:59.000Z

    We derive a upper bound on the free energy of a Bose gas system at density $\\rho$ and temperature $T$. In combination with the lower bound derived previously by Seiringer \\cite{RS1}, our result proves that in the low density limit, i.e., when $a^3\\rho\\ll 1$, where $a$ denotes the scattering length of the pair-interaction potential, the leading term of $\\Delta f$ the free energy difference per volume between interacting and ideal Bose gases is equal to $4\\pi a (2\\rho^2-[\\rho-\\rhoc]^2_+)$. Here, $\\rhoc(T)$ denotes the critical density for Bose-Einstein condensation (for the ideal gas), and $[\\cdot ]_+$ $=$ $\\max\\{\\cdot, 0\\}$ denotes the positive part.

  3. Simulation model air-to-air plate heat exchanger

    SciTech Connect (OSTI)

    Wetter, Michael

    1999-01-01T23:59:59.000Z

    A simple simulation model of an air-to-air plate heat exchanger is presented. The model belongs to a collection of simulation models that allows the eflcient computer simulation of heating, ventilation, and air-conditioning (HVAC) systems. The main emphasis of the models is to shorten computation time and to use only input data that are known in the design process of an HVAC system. The target of the models is to describe the behavior of HVAC components in the part-load operation mode, which is becoming increasingly important in energy eficient HVAC systems. The models are intended to be used for yearly energy calculations or load calculations with time steps of about 10 minutes or larger. Short- time dynamic effects, which are of interest for different aspects of control theory, are neglected. The part-load behavior is expressed in terms of the nominal condition and the dimensionless variation of the heat transfer with change of mass flow and temperature. The effectiveness- NTU relations are used to parametrize the convective heat transfer at nominal conditions and to compute the part-load condition. If the heat transfer coefficients on the two exchanger sides are not equal (i. e. due to partial bypassing of air), their ratio can be easily calculated and set as a parameter. The model is static and uses explicit equations only. The explicit model formulation ensures short computation time and numerical stability, which allows using the model with sophisticated engineering methods like automatic system optimization. This paper fully outlines the algorithm description and its simplifications. It is not tailored for any particular simulation program to ensure easy implementation in any simulation program.

  4. Method and apparatus for enhancing microchannel plate data

    DOE Patents [OSTI]

    Thoe, R.S.

    1983-10-24T23:59:59.000Z

    A method and apparatus for determining centroid channel locations are disclosed for use in a system activated by one or more multichannel plates and including a linear diode array providing channels of information 1, 2, ...,n, ..., N containing signal amplitudes A/sub n/. A source of analog A/sub n/ signals, and a source of digital clock signals n, are provided. Non-zero A/sub n/ values are detected in a discriminator. A digital signal representing p, the value of n immediately preceding that whereat A/sub n/ takes its first non-zero value, is generated in a scaler. The analog A/sub n/ signals are converted to digital in an analog to digital converter. The digital A/sub n/ signals are added to produce a digital ..sigma..A/sub n/ signal in a full adder. Digital 1, 2, ..., m signals representing the number of non-zero A/sub n/ are produced by a discriminator pulse counter. Digital signals representing 1 A/sub p+1/, 2 A/sub p+2/, ..., m A/sub p+m/ are produced by pairwise multiplication in multiplier. These signal are added in multiplier summer to produce a digital ..sigma..nA/sub n/ - p..sigma..A/sub n/ signal. This signal is divided by the digital ..sigma..A/sub n/ signal in divider to provide a digital (..sigma..nA/sub n//..sigma..A/sub n/) -p signal. Finally, this last signal is added to the digital p signal in an offset summer to provide ..sigma..nA/sub n//..sigma..A/sub n/, the centroid channel locations.

  5. Method and apparatus for enhancing microchannel plate data

    DOE Patents [OSTI]

    Thoe, Robert S. (Livermore, CA)

    1987-01-01T23:59:59.000Z

    A method and apparatus for determining centroid channel locations is disclosed for use in a system activated by one or more multichannel plates (16,18) and including a linear diode array (24) providing channels of information 1, 2, . . . , n, . . . , N containing signal amplitudes A.sub.n. A source of analog A.sub.n signals (40), and a source of digital clock signals n (48), are provided. Non-zero A.sub.n values are detected in a discriminator (42). A digital signal representing p, the value of n immediately preceding that whereat A.sub.n takes its first non-zero value, is generated in a scaler (50). The analog A.sub.n signals are converted to digital in an analog to digital converter (44). The digital A.sub.n signals are added to produce a digital .SIGMA.A.sub.n signal in a full adder (46). Digital 1, 2, . . . , m signals representing the number of non-zero A.sub.n are produced by a discriminator pulse counter (52). Digital signals representing 1 A.sub.p+ 1, 2 A.sub.p+2, . . . , m A.sub.p+m are produced by pairwise multiplication in multiplier (54). These signals are added in multiplier summer (56) to produce a digital .SIGMA.nA.sub.n -p.SIGMA.A.sub.n signal. This signal is divided by the digital .SIGMA.A.sub.n signal in divider (58) to provide a digital (.SIGMA.nA.sub.n /.SIGMA.A.sub.n) -p signal. Finally, this last signal is added to the digital p signal in an offset summer (60) to provide .SIGMA.nA.sub.n /.SIGMA.A.sub.n, the centroid channel locations.

  6. a533-b steel plates: Topics by E-print Network

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

    SHEAR WALLS USING DUAL STRIP MODEL Engineering Websites Summary: ANALYTICAL STUDY ON STEEL PLATE SHEAR WALLS USING DUAL STRIP MODEL AND 3D FE MODEL B.QU and M, Taiwan and other...

  7. Experimental and Analytical Study of Exponential Power Excursion in Plate-Type Fuel

    E-Print Network [OSTI]

    Sargentini, Lucia

    This paper presents an investigation of transient heat transfer, which may occur in nuclear reactors with plate-type fuel during a reactivity initiated accident. Analytical solutions of the heat transfer equation were ...

  8. An evaluation of the thermal characteristics of a flat plate heat pipe spreader

    E-Print Network [OSTI]

    Chesser, Jason Blake

    2000-01-01T23:59:59.000Z

    An evaluation of the thermal characteristics of a flat plate heat pipe spreader was performed through an analytical, numerical, and experimental analysis. The physical system considered was comprised of a high heat flux heat source attached...

  9. Nonlinear plate vibrations: A modal approach with application to cymbals and gongs

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Nonlinear plate vibrations: A modal approach with application to cymbals and gongs M. Ducceschia- sides in their ability to simulate the sound of more realis- tic percussive instruments such as gongs

  10. Numerical Methods in Offshore Geotechnics: Applications to Submarine Landslides and Anchor Plates

    E-Print Network [OSTI]

    Nouri, Hamid Reza

    2013-05-08T23:59:59.000Z

    combined shear and torsion. Plate anchors are increasingly being used instead of typical foundation systems to anchor offshore floating platforms to sustain uplift operating forces. However extreme loading cases would create general loading conditions...

  11. From the Tides of Puget Sound to Your Plate: Northwest Shellfish

    E-Print Network [OSTI]

    From the Tides of Puget Sound to Your Plate: Northwest Shellfish Industry Provides Important for Puget Sound's ecosystem. Together with our partners, we are strengthening the health of our ecosystem

  12. The development of a prototype Zone-Plate-Array Lithography (ZPAL) system

    E-Print Network [OSTI]

    Patel, Amil Ashok, 1979-

    2004-01-01T23:59:59.000Z

    The research presented in this paper aims to build a Zone-Plate-Array Lithography (ZPAL) prototype tool that will demonstrate the high-resolution, parallel patterning capabilities of the architecture. The experiment will ...

  13. Experimental Investigations of Vortex Induced Vibration of A Flat Plate in Pitch Oscillation

    E-Print Network [OSTI]

    Yang, Yi

    2012-02-14T23:59:59.000Z

    A bluff structure placed in a flowing fluid, may be subjected to vortex-induced vibrations (VIV). For a flat plate with only rotational degree of freedom, the VIV is rotational oscillation. Based on the experimental investigation, vortex...

  14. Experimental and Analytical Estimation of Damping in Beams and Plates with Damping Treatments

    E-Print Network [OSTI]

    Liu, Wanbo

    2008-01-01T23:59:59.000Z

    The research presented in this dissertation is devoted to the problem of damping estimation in engineering structures, especially beams and plates with passive damping treatments. In structural design and/or optimization, ...

  15. Light-Weight, Low-Cost, Single-Phase, Liquid-Cooled Cold Plate (Presentation)

    SciTech Connect (OSTI)

    Narumanchi, S.

    2013-07-01T23:59:59.000Z

    This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

  16. Light-Weight, Single-Phase, Liquid-Cooled Cold Plate (Presentation)

    SciTech Connect (OSTI)

    Narumanchi, S.

    2013-07-01T23:59:59.000Z

    This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

  17. Biomechancis of biological fixation utilizing a plate with and without an intramedullary rod

    E-Print Network [OSTI]

    Nori, Meera

    1994-01-01T23:59:59.000Z

    fixation using both a bone plate and an intrameduhary rod for fracture reduction. The combined system aims at reduction of the incidence of failure of the fixation device, preserving the biological environment and maintaining low levels of interfragmentary...

  18. Accreted oceanic terranes in Ecuador : Southern edge of the Caribbean plate ?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Accreted oceanic terranes in Ecuador : Southern edge of the Caribbean plate ? Etienne Jaillard (1 plateau of Ecuador is interpreted as part of the Caribbean ocean- ic plateau (COP), because

  19. Optical Properties of Plasmonic Zone Plate Lens, SERS-active Substrate and Infrared Dipole Antenna

    E-Print Network [OSTI]

    Kim, Hyun Chul

    2010-10-12T23:59:59.000Z

    of this device is relatively low. By introducing a metal/dielectric multilayered zone plate, we present higher field enhancement at the focal point. This higher field enhancement originates not only from surface plasmon polaritons-assisted diffraction process...

  20. Highly conductive thermoplastic composites for rapid production of fuel cell bipolar plates

    DOE Patents [OSTI]

    Huang, Jianhua [Blacksburg, VA; Baird, Donald G [Blacksburg, VA; McGrath, James E [Blacksburg, VA

    2008-04-29T23:59:59.000Z

    A low cost method of fabricating bipolar plates for use in fuel cells utilizes a wet lay process for combining graphite particles, thermoplastic fibers, and reinforcing fibers to produce a plurality of formable sheets. The formable sheets are then molded into a bipolar plates with features impressed therein via the molding process. The bipolar plates formed by the process have conductivity in excess of 150 S/cm and have sufficient mechanical strength to be used in fuel cells. The bipolar plates can be formed as a skin/core laminate where a second polymer material is used on the skin surface which provides for enhanced conductivity, chemical resistance, and resistance to gas permeation.

  1. Numerical simulations of perforated plate stabilized premixed flames with detailed chemistry

    E-Print Network [OSTI]

    Kedia, Kushal Sharad

    2010-01-01T23:59:59.000Z

    The objective of this work is to develop a high efficiency two-dimensional reactive flow solver to investigate perforated-plate stabilized laminar premixed flames. The developed code is used to examine the impact of the ...

  2. Measurement of light capture in solar cells from silver- and tin-plated patterned bus bars

    E-Print Network [OSTI]

    Winiarz, Christine Eve

    2007-01-01T23:59:59.000Z

    Bus bars on solar cells shade silicon from light. When the bus bars are patterned, they can reflect light back onto the silicon using total internal reflection. These patterned bus bars are tin plated and produce 1-2.5% ...

  3. TESTING AND ACCEPTANCE OF FUEL PLATES FOR RERTR FUEL DEVELOPMENT EXPERIMENTS

    SciTech Connect (OSTI)

    J.M. Wight; G.A. Moore; S.C. Taylor

    2008-10-01T23:59:59.000Z

    This paper discusses how candidate fuel plates for RERTR Fuel Development experiments are examined and tested for acceptance prior to reactor insertion. These tests include destructive and nondestructive examinations (DE and NDE). The DE includes blister annealing for dispersion fuel plates, bend testing of adjacent cladding, and microscopic examination of archive fuel plates. The NDE includes Ultrasonic (UT) scanning and radiography. UT tests include an ultrasonic scan for areas of debonds and a high frequency ultrasonic scan to determine the "minimum cladding" over the fuel. Radiography inspections include identifying fuel outside of the maximum fuel zone and measurements and calculations for fuel density. Details of each test are provided and acceptance criteria are defined. These tests help to provide a high level of confidence the fuel plate will perform in the reactor without a breach in the cladding.

  4. An evaluation of finite element models of stiffened plates subjected to impulsive loading

    E-Print Network [OSTI]

    Pedatzur, Omri

    2004-01-01T23:59:59.000Z

    Different finite element models are evaluated for two very common structures, a cantilever beam and a stiffened plate, subjected to impulsive loading. For the cantilever beam case, the finite element models are one, two ...

  5. Detection of NonSymmetrical Damage in Smart PlateLike Structures 1

    E-Print Network [OSTI]

    and compared to experimental data obtained from tests on cantilever aluminum plate­like structures damaged such as the aerospace, automotive and machine­tool industries. In particular, smart structures with self actuating

  6. Evolution of the Galapagos Rise and the Bauer Microplate: implications for the Nazca plate

    E-Print Network [OSTI]

    Wright, Jennifer Catherine McGuire

    2006-04-12T23:59:59.000Z

    Analysis of the satellite altimetry based predicted bathymetry, magnetic anomalies, and earthquake seismic data relating to the geophysical structure on the Nazca plate indicates that the Galapagos Rise system served as the transitional spreading...

  7. Characterization of residual stress relaxation in welded steel plate using TAP-NDE and wavelets

    E-Print Network [OSTI]

    Jhun, Choon-Sik

    2001-01-01T23:59:59.000Z

    This thesis presents the characterization of residual stress relaxation in a welded ASTM 1018 steel plate by using the Thermo-Acousto-Photonic Nondestructive Evaluation (TAP-NDE) technique and the Gabor Wavelet Transform (GWT) which together produce...

  8. A multiresolution finite element method based on a new locking-free rectangular Mindlin plate element

    E-Print Network [OSTI]

    Xia, Yi-Ming

    2015-01-01T23:59:59.000Z

    A locking-free rectangular Mindlin plate element with a new multi-resolution analysis (MRA) is proposed and a multireolution finite element method is hence presented. The MRA framework is formulated out of a mutually nesting displacement subspace sequence. The MRA endows the proposed element with the resolution level (RL) to adjust the element node number, thus modulating structural analysis accuracy accordingly. As a result, the traditional 4-node rectangular Mindlin plate element and method is a mono-resolution one and also a special case of the proposed element and method. The meshing for the monoresolution plate element model is based on the empiricism while the RL adjusting for the multiresolution is laid on the rigorous mathematical basis. The accuracy of a structural analysis is actually determined by the RL, not by the mesh. The rational MRA enables the implementation of the multiresolution Mindlin plate element method to be more rational and efficient than that of the conventional monoresolution or o...

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

    E-Print Network [OSTI]

    Reynolds, Paige Lea

    2002-01-01T23:59:59.000Z

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

  10. Effectiveness of nickel plating in inhibiting atmospheric corrosion of copper alloy contacts

    SciTech Connect (OSTI)

    Ernest, T.; Sorensen, R.; Guilinger, T.

    1997-12-31T23:59:59.000Z

    A series of tests was run to determine the effect of Ni plating thickness on connector contact resistance. Copper coupons were plated with an electrolytic nickel strike followed by electroless nickel to produce Ni layers of 10, 20, 55 and 100 {micro}in. The coupons were then exposed to a simulated industrial environment. Pore corrosion was observed after the exposure, which correlated with Ni thickness. In a second series of tests, beryllium-copper four-tine contacts with 50 {micro}in of gold plate over electrolytic nickel strike/electroless-nickel plates of varying thickness were exposed the same corrosive environment. Contact resistance of mated pairs was monitored over a two-month period. The degradation in contact resistance correlated with the Ni thickness used in the connectors.

  11. Design of Flat-Plate Dehumidifiers for HumidificationDehumidification Desalination Systems

    E-Print Network [OSTI]

    Sievers, Martin

    Flat-plate heat exchangers are examined for use as dehumidifiers in humidificationdehumidification (HDH) desalination systems. The temperature and humidity ratio differences that drive mass transfer are considerably higher ...

  12. Design of Plate-Fin Tube Dehumidifiers for Humidification-Dehumidification Desalination Systems

    E-Print Network [OSTI]

    Sievers, Martin

    A two-dimensional numerical model of a plate-fin tube heat exchanger for use as a dehumidifier in a humidification-dehumidification (HDH) desalination systems is developed, because typical heating, ventilating, and air ...

  13. New Zone Plate for Soft X-Ray Microscopy at 15-nm Spatial Resolution

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

    made with the XM-1's current 25-nm MZP, the new MZP was able to obtain sharp images of lines a mere 15 nm apart-where the older zone plate had seen only a featureless field of...

  14. Response of a grooved plate subjected to out-of-plane contact loading

    E-Print Network [OSTI]

    Bastien, Christopher J

    2008-01-01T23:59:59.000Z

    The response of a grooved plate subjected to out-of-plane contact loading is examined. The influence of selected geometric and loading parameters are investigated, as well as the effects of various boundary conditions. The ...

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

    E-Print Network [OSTI]

    Reynolds, Paige Lea

    2002-01-01T23:59:59.000Z

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

  16. Analysis and experimental study of a plate-type hydraulic vibration damper for cryogenic rotating machinery

    E-Print Network [OSTI]

    Olan, Emmanuel Angustia

    1991-01-01T23:59:59.000Z

    ANALYSIS AND EXPERIMENTAL STUDY OF A PLATE-TYPE HYDRAULIC VIBRATION DAMPER FOR CRYOGENIC ROTATING MACHINERY A Thesis by EMMANUEL ANGUSTIA OLAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1991 Major Subject: Mechanical Engineering ANALYSIS AND EXPERIMENTAL STUDY OF A PLATE-TYPE HYDRAULIC VIBRATION DAMPER FOR CRYOGENIC ROTATING MACHINERY A Thesis by EMMANUEL ANGUSTIA OLAN Approved...

  17. A hierarchical structure of neural network implemented for the recognition of automobile license plate number

    E-Print Network [OSTI]

    Chang, Joongho

    1994-01-01T23:59:59.000Z

    A HIERARCHICAL STRUCTURE OF NEURAL NETWORK IMPLEMENTED FOR THE RECOGNITION OF AUTOMOBILE LICENSE PLATE NURSER A Thesis by JOONGHO CHANG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfdlment... of the requirements for the degree of MASTER OF SCIENCE August 1994 Major Subject: Electrical Engineering A HIERARCHICAL STRUCTURE OF NEURAL NETWORK IMPLEMENTED FOR THE RECOGNITION OF AUTOMOBILE LICENSE PLATE NUMBER A Thesis by JOONGHO CHANG Submitted...

  18. Deformation of the Gorda Block of the Juan de Fuca Plate

    E-Print Network [OSTI]

    Stoddard, Paul Richard

    1982-01-01T23:59:59.000Z

    of the northeast Pacific to be understood in the new plate tectonic framework. The area is undergoing active deformation, as evi- denced by non-linear magnetic lineations and a large amount of regional seismicil'y. The deformation began with the change in motion...) ~ ~ . . . , . . . . . . . . . . , . . . . . . . . 27 Figure 12: Velocity space diagram for the Gorda Block and Pacific plate . . . . . . . . . . . . . . . . . , , . . . . . , 31 Figure 13: Numbering scheme for magnetic lineations within the Gorda Block (after Carlson, 1981...

  19. NO. RIY. NO. PLATING OF PSE LEVELING STOOL P'AGI 1 OP 4

    E-Print Network [OSTI]

    Rathbun, Julie A.

    the Type I Process from Document 238046. The Array D Stool, then, is plated: 1. With electroless Nickel 0 - which controls both Type I (Nickel deposit prior to gold as used on the sensor base) and Type II (Silver. 0002 to 0. 0003 per MIL-C-26074A. 2. Bright Nickel 0. 0005 to 0. 0008 per QQ-N-290 Type l 3. Gold Plate

  20. Radar cross section of triangular trihedral reflector with extended bottom plate.

    SciTech Connect (OSTI)

    Brock, Billy C.; Doerry, Armin Walter

    2009-05-01T23:59:59.000Z

    Trihedral corner reflectors are the preferred canonical target for SAR performance evaluation for many radar development programs. The conventional trihedrals have problems with substantially reduced Radar Cross Section (RCS) at low grazing angles, unless they are tilted forward, but in which case other problems arise. Consequently there is a need for better low grazing angle performance for trihedrals. This is facilitated by extending the bottom plate. A relevant analysis of RCS for an infinite ground plate is presented. Practical aspects are also discussed.

  1. Possible Upper limits on Lorentz Factors in High Energy Astrophysical Processes

    E-Print Network [OSTI]

    C. Sivaram; Kenath Arun

    2010-08-31T23:59:59.000Z

    Gamma ray bursts (GRBs) are the most luminous physical phenomena in the universe. The relativistic effect on the blast wave associated with the GRB introduces the gamma factor. Here we put an upper limit on the gamma factor via constraints on maximal power allowed by general relativity and hence set upper limits on other observable quantities such as deceleration distance. Also upper limits are set on the high energy particle radiation due to constraints set by cosmic microwave background radiation.

  2. Nuclear reactor fuel structure containing uranium alloy wires embedded in a metallic matrix plate

    DOE Patents [OSTI]

    Travelli, A.

    1985-10-25T23:59:59.000Z

    A flat or curved plate structure, to be used as fuel in a nuclear reactor, comprises elongated fissionable wires or strips embedded in a metallic continuous non-fissionable matrix plate. The wires or strips are made predominantly of a malleable uranium alloy, such as uranium silicide, uranium gallide or uranium germanide. The matrix plate is made predominantly of aluminum or an aluminum alloy. The wires or strips are located in a single row at the midsurface of the plate, parallel with one another and with the length dimension of the plate. The wires or strips are separated from each other, and from the surface of the plate, by sufficient thicknesses of matrix material, to provide structural integrity and effective fission product retention, under neutron irradiation. This construction makes it safely feasible to provide a high uranium density, so that the uranium enrichment with uranium 235 may be reduced below about 20%, to deter the reprocessing of the uranium for use in nuclear weapons.

  3. Nuclear reactor fuel structure containing uranium alloy wires embedded in a metallic matrix plate

    DOE Patents [OSTI]

    Travelli, Armando (Hinsdale, IL)

    1988-01-01T23:59:59.000Z

    A flat or curved plate structure, to be used as fuel in a nuclear reactor, comprises elongated fissionable wires or strips embedded in a metallic continuous non-fissionable matrix plate. The wires or strips are made predominantly of a malleable uranium alloy, such as uranium silicide, uranium gallide or uranium germanide. The matrix plate is made predominantly of aluminum or an aluminum alloy. The wires or strips are located in a single row at the midsurface of the plate, parallel with one another and with the length dimension of the plate. The wires or strips are separated from each other, and from the surface of the plate, by sufficient thicknesses of matrix material, to provide structural integrity and effective fission product retention, under neutron irradiation. This construction makes it safely feasible to provide a high uranium density, so that the uranium enrichment with uranium 235 may be reduced below about 20%, to deter the reprocessing of the uranium for use in nuclear weapons.

  4. Klee-Minty's LP and Upper Bounds for Dantzig's Simplex Method

    E-Print Network [OSTI]

    Tomonari Kitahara

    2011-01-04T23:59:59.000Z

    Jan 4, 2011 ... Klee-Minty's LP and Upper Bounds for Dantzig's Simplex Method. Tomonari ... Citation: This article will appear in Operations Research Letters.

  5. E-Print Network 3.0 - anisotropic upper critical Sample Search...

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

    30 A two-dimensional hybrid method for modeling seismic wave propagation in anisotropic media Summary: upper mantle. We calculated the synthetics for a series of laterally...

  6. Hardness and microstructural response to thermal annealing of irradiated ASTM A533B class 1 plate steel

    SciTech Connect (OSTI)

    Reinhart, D.E. [SMS Concast, Inc., Pittsburgh, PA (United States); Kumar, A.S. [Univ. of Missouri, Rolla, MO (United States); Gelles, D.S.; Hamilton, M.L. [Pacific Northwest Lab., Richland, WA (United States); Rosinski, S.T. [Electric Power Research Inst., Charlotte, NC (United States)

    1999-10-01T23:59:59.000Z

    Hardness measurements were used to determine the post-irradiation annealing response of A533B class 1 plate steel irradiated to a fluence of 1 {times} 10{sup 19} n/cm{sup 2} (E > 1 MeV) at 150 C. Rockwell hardness measurements indicated that the material had hardened by 6.6 points on the B scale after irradiation. The irradiation induced hardness increase was associated with a decrease in upper shelf energy from 63.4 J to 5-1.8 J and a temperature shift in the Charpy curve at the 41 J level from 115 C to 215 C. Specimens were annealed after irradiation at temperatures of 343 C (650 F), 399 C (750 F), and 454 C (850 F) for durations of up to one week (168 h). Hardness measurements were made to chart recovery of hardness as a function of time and temperature. Specimens annealed at the highest temperature 454 C recovered the fastest, fully recovering within 144 h. Specimens annealed at 399 C recovered completely within 168 h. Specimens annealed at the lowest temperature, 343 C recovered only {approximately}70% after 168 h of annealing. After neutron irradiation, a new feature of black spot damage was found to be superimposed on the unirradiated microstructure. The density of black spots was found to vary from 2.3 {times} 10{sup 15}/cm{sup 3} to 1.1 {times} 10{sup 16}/cm{sup 3} with an average diameter of 2.85 nm. Following annealing at 454 C for 24 h the black spot damage was completely annealed out. It was concluded that the black spot damage was responsible for 70% of the irradiation-induced hardness.

  7. Heat Transfer -2 A heat generating ( ) flat plate fuel element of thickness 2L is covered with flat plate steel cladding of

    E-Print Network [OSTI]

    Virginia Tech

    with flat plate steel cladding of thickness b. The heat generated is removed by a fluid at T, which adjoins on both sides On the sketch show regions where dT/dx is zero, constant and increasing. T , h x LL bb SteelSteel

  8. Stratigraphic cyclicity and reservoir heterogeneity within upper San Andres and Grayburg strata (upper Permian-Guadalupian), Maljamar field, Se New Mexico

    E-Print Network [OSTI]

    Modica, Christopher James

    1997-01-01T23:59:59.000Z

    of upper San Andres strata. Cavernous porosity was later plugged with massive anhydrite, resulting in the degradation of reservoir quality. In the overlying Grayburg Formation, cycles consist of mixed sandstone and shallowwater carbonate facies...

  9. Emotions as Heuristics for Rational Agents Bas R. Steunebrink

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Department of Information and Computing Sciences, Utrecht University Technical Report UU-CS-2007-006 www of Information and Computing Sciences Utrecht University Utrecht, The Netherlands bass@cs.uu.nl Mehdi Dastani Department of Information and Computing Sciences Utrecht University Utrecht, The Netherlands mehdi

  10. PS-6 From: Bas,JoAnn L -

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

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

  11. Experimental constraints on the rheological behavior of olivine at upper mantle conditions

    E-Print Network [OSTI]

    Dixon, Nathaniel Adams

    2014-01-01T23:59:59.000Z

    Since the discovery of plate tectonics, geophysicists have sought to understand the dynamic system driving the evolution of the earth, both at the surface and in the deep interior. While the deep earth contains far fewer ...

  12. Thermionic converters for an Integrated Solar Upper Stage (ISUS)

    SciTech Connect (OSTI)

    Anderson, W.G.; Horner-Richardson, K. [Thermacore, Inc., Lancaster, PA (United States)

    1996-12-31T23:59:59.000Z

    The Integrated Solar Upper Stage (ISUS) is a solar bimodal system which combines thermal propulsion and electric power generation in a single integrated system. A thermionic converter was designed and fabricated for the ISUS system. The ISUS thermionic energy converters differ from previous designs, due to the significant changes in operating temperature prior to and during an eclipse, with the emitter temperature increasing from 1,900 K to 2,200 K, and then back again. A complete thermal and electrical model was developed for a planar diode to determine optimum operating dimensions and parameters. The model includes an overall energy balance for the diode, and changes the interelectrode gap spacing due to thermal expansion of the parts as the emitter and/or collector temperatures change. Cesium pressure can be chosen from an external liquid reservoir, an integral reservoir using cesium intercalated into graphite attached to the collector heat pipe, or optimum cesium pressure. With optimum cesium pressure, the maximum efficiency increases from 14% to 16% as the emitter temperature increases from 1,900 K to 2,200 K. The improvement in efficiency is only 2% as the emitter temperature is increased. Optimum efficiency requires an external, actively controlled liquid reservoir.

  13. Bitumen accumulation in Grosmont platform complex, Upper Devonian, Alberta, Canada

    SciTech Connect (OSTI)

    Hoffmann, C.F.; Strausz, O.P.

    1986-09-01T23:59:59.000Z

    The Upper Devonian Grosmont Formation, a broad carbonate platform complex in Alberta, Canada, contains an estimated 300 billion bbl of bitumen. It has been suggested that these vast reserves are related to Lower Cretaceous Athabasca oil sands. Detailed gas chromatographic-mass spectrometric studies of a wide range of biologic marker compounds confirm this suggestion. The Grosmont Formation contains bitumen of similar maturity and source to the Athabasca deposit, but it has been subjected to a greater degree of biodegradation and water washing, possibly as a result of its reservoir rock characteristics. The difference in the degree of biodegradation is manifested by the absence of bicyclic terpanes and by the reduced concentrations of the C/sub 30/ and the 22R epimers of the extended hopanes in the Grosmont bitumen. Also, the greater degree of water washing of the Grosmont bitumen is inferred from the observed distribution of the bicyclic, tricyclic, and tetracyclic terpenoid sulfides, which shows a characteristic loss of the lower molecular weight members in the carbonate bitumen. The correlation established here between the two deposits suggests that if the precursor oil has indeed undergone long-distance migration, the Paleozoic carbonates could have acted as a path for migration. Finally, the observed distribution of steranes in the Grosmont bitumen corresponds to the suggestion that the Mannville Group shales were not the major source rocks of the oil-sand and carbonate bitumen accumulations of northern Alberta. 11 figures, 6 tables.

  14. Upper Jurassic depositional systems and hydrocarbon potential of southeast Mississippi

    SciTech Connect (OSTI)

    Meendsen, F.C.; Moore, C.H.; Heydari, E.; Sassen, R.

    1987-09-01T23:59:59.000Z

    Upper Jurassic sedimentation in southeast Mississippi was controlled by eustatic sea level fluctuations and locally modified by salt tectonism and basement structure. This study, using conventional core data and geophysical logs, indicates that a stable carbonate platform developed along the updip margin of the Mississippi interior salt basin. The basin was partially barred from the main Gulf of Mexico water mass by the Wiggins uplift, and became evaporitic during the Late Jurassic. Moldic, intercrystalline, and vuggy dolomite porosity is developed on the crests of intermediate and high-amplitude salt highs and on the Wiggins uplift. Jurassic source rocks are lower Smackover laminated lime mudstones. Migration into adjacent reservoirs postdated formation of porosity and the growth of salt anticlines, the most common trap type. A large potential Norphlet-Smackover gas play extends along the southern flank of the Wiggins uplift. Salt anticlines within the interior basin remain viable targets. Small oil discoveries should continue in stratigraphic traps, subtle salt structures, and basement blocks on the platform.

  15. Environmental assessment for the Plating Shop Replacement, Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Not Available

    1992-03-01T23:59:59.000Z

    The existing of Y-12 Plant Plating Shop provides vital support functions for the US Department of Energy (DOE) Defense Programs operations. In addition to weapon component plating, the facility performs other plating services to support existing operations for the Y-12 Plant, other DOE facilities, and other federal agencies. In addition, the facility would also provide essential deplating services for weapons reclamation and teardown. The existing Y-12 Plant Plating Shop is presently located in a structure which is rapidly deteriorating and obsolete. The existing building structure was originally designed to house a steam plant, not chemical plating operations. As such, vapors from plating operations have deteriorated the structure to a point where a new facility is needed for continued safe operations. The potential environmental impacts of the proposed action was anticipated to be minimal and would affect no environmentally sensitive areas. Some short-term construction- and demolition-related effects would occur in an already highly industrialized setting. These include temporarily disturbing 72,000 square feet of land for the new plating shop and related site preparation activities, constructing a permanent building on part of the area, and using 80 construction personnel over a period of 18 months for site preparation and construction. Demolition effects vary depending on the environmentally suitable option selected, but they could involve as much as 262 cubic yards of concrete rubble and approximately 1600 cubic yards of soil disposed as waste. Either 1600 cubic yards of fresh soil or 1850 yards of clay and fresh soil could be required. Soil erosion would be minimal. Approximately 20 construction personnel would be involved for 12 months in demolition activities.

  16. Opportunistic Routing in Wireless Ad Hoc Networks: Upper Bounds for the Packet

    E-Print Network [OSTI]

    Mans, Bernard

    routing, in a realistic network model where link conditions are variable. We analyze the performance1 Opportunistic Routing in Wireless Ad Hoc Networks: Upper Bounds for the Packet Propagation Speed to the destination. In this paper, we provide upper bounds on the packet propaga- tion speed for opportunistic

  17. Effects of ozone cooling in the tropical lower stratosphere and upper troposphere

    E-Print Network [OSTI]

    Effects of ozone cooling in the tropical lower stratosphere and upper troposphere Piers M. Forster lower stratosphere and upper troposphere and elucidate the key role of ozone changes in driving of tropical ozone decreases at 70 hPa and lower pressures can lead to significant cooling not only

  18. Global empirical wind model for the upper mesosphere/lower thermosphere. I. Prevailing wind

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Global empirical wind model for the upper mesosphere/lower thermosphere. I. Prevailing wind Y. I. An updated empirical climatic zonally aver- aged prevailing wind model for the upper mesosphere/ lower of monthly mean winds from meteor radar and MF radar measurements at more than 40 stations, well distributed

  19. Mechanisms of summertime upper Arctic Ocean warming and the effect on sea ice melt

    E-Print Network [OSTI]

    Zhang, Jinlun

    but occurs over a much broader area of the ice pack. Citation: Steele, M., J. Zhang, and W. Ermold (2010Mechanisms of summertime upper Arctic Ocean warming and the effect on sea ice melt Michael Steele,1 summertime upper ocean warming and sea ice melt during the 21st century in the Arctic Ocean. Our first

  20. Observations on student difficulties with mathematics in upper-division electricity and magnetism

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    Observations on student difficulties with mathematics in upper-division electricity and magnetism Rachel E. Pepper, Stephanie V. Chasteen, Steven J. Pollock, and Katherine K. Perkins Science Education 2011; published 27 March 2012) We discuss common difficulties in upper-division electricity

  1. Earth Planets Space, 64, 113120, 2012 Upper ionosphere of Mars is not axially symmetrical

    E-Print Network [OSTI]

    Gurnett, Donald A.

    Earth Planets Space, 64, 113­120, 2012 Upper ionosphere of Mars is not axially symmetrical E to the ionosphere providing momentum and energy transfer to the upper layers of the ionospheric plasma. While dependence rather closely follow the Chapman model (Gurnett et al., 2008; Morgan et al., 2008; Withers, 2009

  2. Variation of the Thermohaline Structure in the Western Equatorial Pacific Upper Ocean

    E-Print Network [OSTI]

    Luther, Douglas S.

    Variation of the Thermohaline Structure in the Western Equatorial Pacific Upper Ocean;Abstract Processes which control the upper ocean thermohaline structure in the western equa- torial Pacific forcing data have indicated that the thick isothermal layer in the western equatorial Pacific is found

  3. Reduced Order Modeling of the Upper Tropical Pacific Ocean Model Using Proper Orthogonal Decomposition

    E-Print Network [OSTI]

    Aluffi, Paolo

    Reduced Order Modeling of the Upper Tropical Pacific Ocean Model Using Proper Orthogonal of a large-scale upper ocean circulation in the tropic Pacific domain. We construct different POD models-scale seasonal variability of the tropic Pacific obtained by the original model is well captured by a low

  4. Studio optics: Adapting interactive engagement pedagogy to upper-division physics

    E-Print Network [OSTI]

    Zollman, Dean

    Studio optics: Adapting interactive engagement pedagogy to upper-division physics Christopher M describe the development and implementation of a Studio Optics course for upper-division physics majors course in optics at the junior-senior and first year graduate student level that incorporates the methods

  5. Impacts of Land Management on Agroecosystem Carbon Fluxes in the Upper Midwest, United States

    E-Print Network [OSTI]

    Minnesota, University of

    Impacts of Land Management on Agroecosystem Carbon Fluxes in the Upper Midwest, United States Investigators: T.J. Griffis and J.M. Baker Funding Source: United States Department of Energy, Office-soybean rotation systems located in the Upper Midwest. The management strategies will include: 1) Conventional corn

  6. Simulations of water isotope abundances in the upper troposphere and lower stratosphere and implications

    E-Print Network [OSTI]

    Gettelman, Andrew

    fractionation processes. The results indicate that water substance in the upper troposphere does not follow a Rayleigh distillation model due to the presence of condensed phase water. Stratospheric abundances and climate of the upper troposphere and lower stratosphere (UT/LS). It is broadly known that most of the air

  7. Cooperator Report: Habitat Requirements of Steelhead in the Upper Salinas River

    E-Print Network [OSTI]

    Thompson, Lisa C.

    Cooperator Report: Habitat Requirements of Steelhead in the Upper Salinas River Watershed Jenna L the abundance, distribution, and habitat requirements of steelhead in the upper Salinas River watershed. We, and reproduce (Thompson & Larsen 2004). The Salinas River and its tributaries have been designated

  8. PID Admittance Control for an Upper Limb Exoskeleton Wen Yu, Jacob Rosen, Xiaoou Li

    E-Print Network [OSTI]

    Rosen, Jacob

    PID Admittance Control for an Upper Limb Exoskeleton Wen Yu, Jacob Rosen, Xiaoou Li Abstract PID control. Three force sensors in the upper-level send desired trajectories to the lower, a model-free PID type admittance control is applied, whose parameters can be designed by human impedance

  9. FLUCTUATION IN TRAP-NET CATCHES IN THE UPPER MISSISSIPPI RIVER

    E-Print Network [OSTI]

    FLUCTUATION IN TRAP-NET CATCHES IN THE UPPER MISSISSIPPI RIVER if; Marine Biological LabofdiuryKay, Secretary Fish and Wildlife Service, Albert M. Day, Director FLUCTUATION IN TRAP NET CATCHES IN THE UPPER Gear used 3 Methods 5 Statistical considerations 5 Season trends in catch of trap nets 6 Black crappie

  10. viscosity in the upper mantle, the result of an ancient, failed rift in the region.

    E-Print Network [OSTI]

    Siegel, David A.

    penetration in the upper ocean, and can be related to phy- toplankton abundance. Along with measure- ments biomass is a crucial measure of the health of ocean ecosystems. An impressive synthesis of the relevant of the upper-ocean concentration of chlorophyll, which is found in all phytoplank- ton, Secchi-disk depths

  11. Upper mantle flow beneath and around the Hangay dome, Central Mongolia Guilhem Barruol a,

    E-Print Network [OSTI]

    Dverchre, Jacques

    Upper mantle flow beneath and around the Hangay dome, Central Mongolia Guilhem Barruol a, , Anne Academy of Sciences (RCAG), P.O. Box 51, Ulaanbaatar, Mongolia a b s t r a c ta r t i c l e i n f o-wave splitting upper mantle Mongolia Hangay dome Siberian craton Bogd fault Mongolia represents the northernmost

  12. MODELLING GROUNDWATER FLOW ON THE REGIONAL SCALE IN THE UPPER DANUBE CATCHMENT (GERMANY)

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    MODELLING GROUNDWATER FLOW ON THE REGIONAL SCALE IN THE UPPER DANUBE CATCHMENT (GERMANY) Roland.barthel@iws.uni-stuttgart.de Abstract. A groundwater flow model for the Upper Danube catchment (A=77,000km2 at gauge Passau, Germany coupled models. Modelling of groundwater flow, using coupled deterministic and hydrological approaches

  13. Nonlinear analysis of hydraulic buckling instability of ANS involute fuel plates

    SciTech Connect (OSTI)

    Sartory, W.K.

    1993-03-01T23:59:59.000Z

    The hydraulic buckling instability of the involute fuel plates and hydraulic coolant channels in the Advanced Neutron Source (ANS) uranium fission reactor is analyzed nonlinearly using the commercial ABAQUS finite element computer program for the fuel plates in conjunction with a user-written element for the two-dimensional fluid flow in the coolant channels. This methodology has been used for several purposes, including determination of the effect of the aluminum-clad plate plastic behavior and the effect of three-dimensional plate temperature distributions on hydraulic buckling. The present report concentrates on a study of the effect of hydraulic channel imperfections on buckling. The specific form of imperfection considered is an error in fluid channel thickness that is uniform within any one channel but that varies from one channel to the next. The calculated bifurcation (linear buckling) coolant velocity is about 45 m/s, whereas the present design coolant velocity is 25 m/s. At the design velocity, the calculated fluid-induced plate deflection due to the imperfection is somewhat less in magnitude and opposite in direction from the imperfection itself.

  14. Characterization of second-phase plates in a Gd5Ge3 intermetallic compound

    SciTech Connect (OSTI)

    Cao, Qing [Ames Laboratory; Chumbley, Leonard S. [Ames Laboratory

    2013-05-16T23:59:59.000Z

    Rare-earth compounds based on the stoichiometry R5(SixGe1?x)4 (R = rare-earth elements) exhibit many unusual features, including possessing R5(SixGe1?x)3 thin plates which always precipitate from the matrix despite efforts to suppress their formation. In an effort to better understand the unique relationship between these two intermetallic alloy systems, the bulk microstructure of the compound Gd5Ge3 was examined using scanning (SEM) and transmission electron microscopy (TEM) and optical microscopy. Surprisingly, SEM examination revealed a series of thin plates present in the Gd5Ge3 matrix similar to what is seen in Gd5Ge4. TEM observation revealed that a role reversal had occurred, with the thin plates possessing the orthorhombic structure and composition of Gd5Ge4. The orientation relationship between Gd5Ge4 thin plates and the Gd5Ge3 matrix was determined to be Graphic the same relationship reported for Gd5Ge3 plates precipitating from a Gd5Ge4 matrix. However, by exchanging the respective roles of the phases as regards matrix vs. precipitate, the total number of precipitation variants seen can be increased from two to six. The persistence with which these two intermetallic systems co-exist is truly unique. However, understanding exactly the kinetic and thermodynamic conditions that lead to their unique relationship is hampered by the high formation temperatures at which the observed reaction occurs.

  15. Tectonic and deposition model of late Precambrian-Cambrian Arabian and adjoining plates

    SciTech Connect (OSTI)

    Husseini, M.I. (Aramco, Dhahran (Saudi Arabia))

    1989-09-01T23:59:59.000Z

    During the late Precambrian, the terranes of the Arabian and adjoining plates were fused along the northeastern flank of the African plate in Gondwanaland. This phase, which ended approximately 640 to 620 Ma, was followed by continental failure (620 to 580 Ma) and intracontinental extension (600 to approximately 550 Ma). During the Infracambrian extensional phase, a triple junction may have evolved near the Sinai Peninsula and may have consisted of the (1) Jordan Valley and Dead Sea rift branch, (2) Sinai and North Egypt rift branch, and (3) the Najd wrench-rift branch. The Najd, Hawasina, and Zagros fault systems may have been transverse faults that accompanied rifting in the Arabian Gulf and Zagros Mountains, southern Oman, Pakistan, and Kerman in central Iran. While the area was extending and subsiding, the Tethys Ocean flooded the eastern side of the Arabian plate and Iran and deposited calcareous clastics, carbonates, and evaporites (including the Hormuz and Ara halites). This transgression extended into the western part of the Arabian plate via the Najd rift system. The termination of the extensional phase during the late Early Cambrian was accompanied by a major regression and terrestrial conditions on the Arabian Peninsula. However, by the Early Ordovician, as sea level peaked to a highstand, the Arabian plate was blanketed with marginal marine sediments. 11 figs., 2 tabs.

  16. GAISUS-1 thermionic converter for the integrated solar upper stage

    SciTech Connect (OSTI)

    Begg, L.L.; Heffernan, T.F.; Horner, M.H. [General Atomics, San Diego, CA (United States)

    1997-12-31T23:59:59.000Z

    The Integrated Solar Upper Stage (ISUS) system is a compact orbital transfer vehicle which generates thrust to boost payloads from LEO to higher orbits. It does this by collecting and concentrating solar flux into a sensible thermal storage, graphite receiver which is used to heat hydrogen propellant to temperatures of up to 2500 K. The ISUS receiver also radiates heat into an array of thermionic converters which produce electrical power. The GAISUS-1 thermionic converter is a first generation planar converter designed to produce electrical power when coupled with the ISUS receiver. GAISUS-1 will deliver over 31 W{sub e} at 1900 K. A wrought Re hotshoe accepts radiant heat from the receiver. The back side of the hotshoe forms the emitting surface of the converter. Special attention was paid to optimize the electrical and thermal losses experienced through the sleeve. Triple and single sleeve geometries were thermally modeled and evaluated, resulting in the selection of a single sleeve design. A high temperature metal/ceramic seal isolates the emitter sleeve from the collector. A Nb collector is used and is an integral part of a Nb/Na heat pipe. The heat pipe transports reject heat from the collector surface to a thermal radiator (condenser) portion of the heat pipe. The converter utilizes an integral graphite Cs reservoir. This type of reservoir automatically produces a rise in Cs pressure in response to a rise in emitter/collector temperatures. This Cs pressure feedback mechanism insures adequate Cs coverage of the emitter over a broad range of operating conditions (temperatures).

  17. Evaluating Radiative Closure in the Middle-to-Upper Troposhere

    SciTech Connect (OSTI)

    Tobin, David C; Turner, David D; Knuteson, Robert O

    2013-01-02T23:59:59.000Z

    This project had two general objectives. The first is the characterization and improvement of the radiative transfer parameterization in strongly absorbing water vapor bands, as these strongly absorbing bands dictate the clear sky radiative heating rate. The second is the characterization and improvement of the radiative transfer in cirrus clouds, with emphasis on ensuring that the parameterization of the radiative transfer is consistent and accurate across the spectrum. Both of these objectives are important for understanding the radiative processes in the mid-to-upper troposphere. The research on this project primarily involved analysis of data from the First and Second Radiative Heating in Underexplored Bands Campaigns, RHUBC-I and II. This included a climate model sensitivity study using results from RHUBC-I. The RHUBC experiments are ARM-funded activities that directly address the objectives of this research project. A secondary effort was also conducted that investigated the trends in the long-term (~14 year) dataset collected by the Atmospheric Emitted Radiance Interferometer (AERI) at the ARM Southern Great Plains site. This work, which was primarily done by a post-doc at the University of Wisconsin ???????¢???????????????? Madison under Dr. Turner???????¢????????????????s direction, uses the only NIST-traceable instrument at the ARM site that has a well-documented calibration and uncertainty performance to investigate long-term trends in the downwelling longwave radiance above this site.

  18. Stratigraphy of Smackover formation (Upper Jurassic), Southwest Alabama

    SciTech Connect (OSTI)

    Barrett, M.L.

    1988-01-01T23:59:59.000Z

    The modeled eustatic sea level rise during Smackover deposition is recorded in rocks along the Wiggins Arch--Conecuh Ridge areas of the Manila embayment as a ''large-scale'' transgressive-regressive carbonate package. Transgression of Smackover carbonates in the Conecuh Ridge area was associated with the end of pronounced fault-block movement characteristic of earlier Norphlet deposits. Underlying Louann and Norphlet strata created a ramplike surface of transgression in the Wiggins arch area, whereas the Louann pinch-out and confinement or Norphlet coarse clastics between basement blocks in the far eastern Manila embayment resulted in a rapidly changing paleotopographic surface. The subdued paleotopographic (ramp) setting was dominated by lateral progradation of sedimentary environments; in contrast, carbonates to the east over basement features responded to the same eustatic changes by vertical upbuilding (aggradation) of facies-a ''tectonic dictator'' existed that controlled depositional relief and localized environments through time. Direct evidence for meter-scale relative sea level oscillations is from multiple exposure surfaces within upper Smackover grainstones. These diagenetic caps (up to four zones recognized in the Chunchula field area) at the top of coarsening-upward sequences are characterized by chemically coated grains, gravitational vadose cements, multiple dissolution-reprecipitation features, and localized radial-fibrous cements. Stacked sedimentary packages indicate that repeated relative sea level rises again initiated carbonate deposition after exposure. Correlation of exposure caps in four wells in Chunchula field reflect internal time lines generally parallel with the Norphlet-Smackover contact, and indicate lateral equivalence of grainstones with updip anhydrite.

  19. Evaluation of the feasibility for detecting hidden corrosion damage in multi-layer gusset plates using multiple inspection techniques

    SciTech Connect (OSTI)

    Cobb, Adam C.; Duffer, Charles E.; Light, Glenn M. [Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238-5166 (United States)

    2014-02-18T23:59:59.000Z

    Gusset plates are used to connect the members in truss bridges and they are usually inspected using calipers or conventional thickness measurement ultrasonic testing (UT) devices. The damage mechanism of particular concern in gusset plates is corrosion and the regions most susceptible to corrosion damage are on the gusset interior surface where it intersects the chord, diagonal, and vertical members from water collecting at the interfaces. For heavily loaded gusset plates, one or more shingle plates are used to reinforce the gusset plate, creating a multi-layer structure. While the areas with corrosion damage remain near the members on the gusset plate, the shingle plates cover the gusset plate and greatly limit the surface access to the gusset plate, making UT thickness measurement impractical. Because of the critical nature of the gussets, a viable inspection strategy for multi-layer gusset assemblies must be developed. The premise of this research and development effort was to develop viable, field-deployable inspection approaches for this problem area. This paper presents three separate inspection approaches: two ultrasonic-based techniques and one radiographic approach. Each of these techniques was evaluated on a mock-up specimen provided by the Federal Highway Administration (FHWA) that is representative of gusseted connection from a truss bridge.

  20. Multi-gap Resistive Plate Chambers as a Time-of-Flight System for the PHENIX Experiment

    SciTech Connect (OSTI)

    Velkovska, Julia [Vanderbilt University] [Vanderbilt University

    2013-12-08T23:59:59.000Z

    In this project a Time-of-Flight detector based on multi-gap resistive plate chambers was built and installed for the PHENIX experiment at RHIC.

  1. Investigation of a HA/PDLGA/Carbon Foam Material System for Orthopedic Fixation Plates Based on Time-Dependent Properties

    E-Print Network [OSTI]

    Rodriguez, Douglas E.

    2010-01-14T23:59:59.000Z

    the material response to applied physiological loads. Results from this work demonstrate the importance of material dissolution rate as well as material strength when designing internal fixation plates....

  2. Cavitation erosion of silver plated coating at different temperatures and pressures

    SciTech Connect (OSTI)

    Hattori, Shuji; Motoi, Yoshihiro [Graduate School of Engineering, University of Fukui, 3-9-1 Bunkyo, Fuku-shi, Fukui 910-8507 (Japan); Kikuta, Kengo; Tomaru, Hiroshi [IHI Corperation, TOYOSU IHI BUILDING, 1-1, Toyosu 3-chome, Koto-ku, Tokyo 1358710 (Japan)

    2014-04-11T23:59:59.000Z

    Cavitation often occurs in inducer pumps used for space rockets. Silver plated coating on the inducer liner faces the damage of cavitation. Therefore, it is important to study about the cavitation erosion resistance for silver plated coating at several operating conditions in the inducer pumps. In this study, the cavitation erosion tests were carried for silver plated coating in deionized water and ethanol at several liquid temperatures (273K400K) and pressures (0.10MPa0.48MPa). The mass loss rate is evaluated in terms of thermodynamic parameter ? proposed by Brennen [9], suppression pressure pp{sub v} (p{sub v}: saturated vapor pressure) and acoustic impedance ?c (?: density and c: sound speed). Cavitation bubble behaviors depending on the thermodynamic effect and the liquid type were observed by high speed video camera. The mass loss rate is formulated by thermodynamic parameter ?, suppression pressure pp{sub v} and acoustic impedance ?c.

  3. Measurement of the Casimir force between Germanium plates using a torsion balance

    SciTech Connect (OSTI)

    Dalvit, Diego [Los Alamos National Laboratory; Kim, W J [YALE UNIV; Sushkov, A O [YALE UNIV; Lamoreaux, S K [YALE UNIV

    2008-01-01T23:59:59.000Z

    We report the measurement of the Casimir force between Ge plates in a sphere-plane configuration using a torsion balance. We observe that the effective contact potential between the plates varies with their separation distance, resulting in a systematic force. In addition, an unexpected 1/d force is also found in our data that persists even when the electrostatic force between the plates is experimentally minimized by applying a compensating potential. After applying corrections due to these systematic forces, likely of electrostatic origin, our result can be described by the bare permittivity of Ge without conduction, the Drude and the diffusion models for electrical and optical properties of Ge, but not by the plasma model.

  4. Heat transfer in the plate heat exchanger of an ammonia-synthesis column

    SciTech Connect (OSTI)

    Obolentsev, Y.G.; Chus', M.S.; Norobchanskii, O.A.; Teplitshi, Y.S.; Tovazhnyanskii, L.L.

    1983-01-01T23:59:59.000Z

    The planning and construction of high-capacity synthetic ammonia plants requires the development and fabrication of unique, high unit-power equipment with high technical and economic characteristics. In foreign and domestic practice, tubular heat exchangers with relatively low heat-transfer coefficients are used. Plate heat exchangers are a promising alternative. They are compact and have a high heat energy efficiency and a relatively small metal content. To make an experimental check of the operating capability of a plate heat exchanger under ammonia production conditions, a welded plate heat exchanger was designed for an ammonia synthesis column 800mm in diameter. On prolonged testing (four years), the device provided an autothermal operating mode in the column and the heat transfer coefficient was practically constant for fixed space velocities. Consequently, the heat exchange surface was not contaminated significantly with catalyst dust, confirmed by visual observation of the heat exchanger after disassembly.

  5. Experimental study on corrugated cross-flow air-cooled plate heat exchangers

    SciTech Connect (OSTI)

    Kim, Minsung; Baik, Young-Jin; Park, Seong-Ryong; Ra, Ho-Sang [Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research, Daejeon 305-343 (Korea); Lim, Hyug [Research and Development Center, LHE Co., Ltd., Gimhae 621-874 (Korea)

    2010-11-15T23:59:59.000Z

    Experimental study on cross-flow air-cooled plate heat exchangers (PHEs) was performed. The two prototype PHEs were manufactured in a stack of single-wave plates and double-wave plates in parallel. Cooling air flows through the PHEs in a crosswise direction against internal cooling water. The heat exchanger aims to substitute open-loop cooling towers with closed-loop water circulation, which guarantees cleanliness and compactness. In this study, the prototype PHEs were tested in a laboratory scale experiments. From the tests, double-wave PHE shows approximately 50% enhanced heat transfer performance compared to single-wave PHE. However, double-wave PHE costs 30% additional pressure drop. For commercialization, a wide channel design for air flow would be essential for reliable performance. (author)

  6. High-Rate Glass Resistive Plate Chambers For LHC Muon Detectors Upgrade

    E-Print Network [OSTI]

    Laktineh, I; Cauwenbergh, S; Combret, C; Crotty, I; Haddad, Y; Grenier, G; Guida, R; Kieffer, R; Lumb, N; Mirabito, L; Schirra, F; Seguin, N; Tytgat, M; Van der Donckt, M; Wang, Y; Zaganidis, N

    2012-01-01T23:59:59.000Z

    The limitation of the detection rate of standard bakelite resistive plate chambers (RPC) used as muon detector in LHC experiments is behind the absence of such detectors in the high TJ regions in both CMS and ATLAS detectors. RPCs made with low resistivity glass plates (10ID O.cm) could be an adequate solution to equip the high TJ regions extending thus both the trigger efficiency and the physics performance. Different beam tests with single and multi-gap configurations using the new glass have shown that such detectors can operate at few thousands Hzlcm2 with high efficiency( > 90%).

  7. Quality assurance guidance for laboratory assessment plates in support of EM environmental sampling and analysis activities

    SciTech Connect (OSTI)

    Not Available

    1994-05-01T23:59:59.000Z

    This document is one of several guidance documents developed to support the EM (DOE Environmental Restoration and Waste Management) Analytical Services program. Its purpose is to introduce assessment plates that can be used to conduct performance assessments of an organization`s or project`s ability to meet quality goals for analytical laboratory activities. These assessment plates are provided as non-prescriptive guidance to EM-support organizations responsible for collection of environmental data for remediation and waste management programs at DOE facilities. The assessments evaluate objectively all components of the analytical laboratory process to determine their proper selection and use.

  8. An experimental investigation of certain flat plates loaded in torsion with end restraint

    E-Print Network [OSTI]

    Hamner, Bennett Barron

    1953-01-01T23:59:59.000Z

    AN EXPERINENTAL INVESTIGATION CERTAIN FIAT PIATES IDADED IN TORSION 1TITB END RESTRAINT A Thesis S B BANNER Approved as to style and oontent by: Chairnan of' Cosssittee Bead of' Depar t AuEnst IRSS kE EXBKIEEETkL IEVESTIGLTIOE OP CERTh... and deflections of flat plates loaded in torsion are oonsidered. Plates of width-Chiohess ratios of 8, 10, 12 and 14 and length- width ratios of 1, 2 ~ 4 and 6 are used Theoretical and expsrinental stress and defleotion ourves are plottedi Sartloular...

  9. Deformation of a thin, elastic plate to a deep parabolic cylinder

    SciTech Connect (OSTI)

    Reuter, R.C. Jr.; Wilson, R.K.

    1982-02-01T23:59:59.000Z

    Equations governing the elastic deformation of thin plates through large displacements to deep parabolic cylinders are presented and solved. The solution consists of expressions for a spatially distributed surface pressure and uniform rim loads which, when applied to the plate, produce the specified, deep parabolic cylindrical shape. These forming loads are written in dimensionless form for parabolic cylinders of arbitrary focal length and arbitrary rim to rim aperture. Numerical results are presented and limiting values are discussed. The solution and results find immediate application to mechanical forming and adhesive retention of parabolic solar collector components.

  10. Friction factor data for flat plate tests of smooth and honeycomb surfaces

    E-Print Network [OSTI]

    Ha, Tae Woong

    1989-01-01T23:59:59.000Z

    are needed. The purpose of this report is to present the air flow friction factor data for honeycomb surfaces (i.e., 1.57 mm, 0.79 mm and 0.51 mm in cell width, 3.81 mm and 2.29 mm in cell depth) with a flat plate tester. The flat plate tester is designed....2bar, and 17.9bar, respectively and 3 clearances between honeycombs which are 0.25mm, 0.38mm and 0.51mm. These clearance values are representative of actual seals used in the turbomachinary. The following questions wil l be answered: 1) Does...

  11. 3-D laser Doppler velocimetry study of incompressible flow through an orifice plate

    E-Print Network [OSTI]

    Panak, David Leo

    1990-01-01T23:59:59.000Z

    in accordance with orifice metering standards given in the American Gas Association's (AGA) rifi e Me rin f N [22]. Slight alterations were made on the orifice meter facility in order for the 3-D LDV system to make velocity measurements in the flow field... pins 5) Standard flange hole spacing R63 5 Section E D16. 00 Figure 1 Beveled orifice meter plate, P = 0. 5. orifice plate used in this study was 3. 175 mm thick and made of stainless steel (Figure 1). The center hole was exactly 25. 40 mm...

  12. Extraordinary optical transmission and vortex excitation by periodic arrays of Fresnel zone plates

    E-Print Network [OSTI]

    Roszkiewicz, A

    2013-01-01T23:59:59.000Z

    Extraordinary optical transmission and good focusing properties of a two-dimensional scattering structure is presented. The structure is made of Fresnel zone plates periodically arranged along two orthogonal directions. Each plate consists of two ring-shaped waveguides supporting modes that match the symmetry of a circularly polarized incident plane wave. High field concentration at the focal plane is obtained with short transverse and long longitudinal foci diameters. Optical vortex excitation in a paraxial region of the transmitted field is also observed and analysed in terms of cross-polarisation coupling. The structure presented may appear useful in visualization, trapping and precise manipulations of nanoparticles.

  13. Electroless nickel and ion-plated protective coatings for silvered glass mirrors

    SciTech Connect (OSTI)

    Lind, M.A.; Chaudiere, D.A.; Stewart, T.L.

    1982-01-01T23:59:59.000Z

    Two methods of protecting second surface silvered glass mirrors from environmental degradation have been evaluated. One method employed silver mirrors overcoated with Al, Ni, 304 stainless steel, Cr, and an Al/Cu alloy prepared by ion-plating. The other method used conventional wet process silver mirrors protected with a thin electroless nickel coating. These mirrors were compared with conventional paint backed silver/copper mirrors after exposure to elevated temperatures and water vapor. The electroless nickel mirrors showed consistently more resistance to these stresses than either the conventional or ion-plated mirrors suggesting that they may provide more durable field service.

  14. Upper Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model

    E-Print Network [OSTI]

    P. Gerhold; K. Jansen

    2010-02-23T23:59:59.000Z

    We establish the cutoff-dependent upper Higgs boson mass bound by means of direct lattice computations in the framework of a chirally invariant lattice Higgs-Yukawa model emulating the same chiral Yukawa coupling structure as in the Higgs-fermion sector of the Standard Model. As expected from the triviality picture of the Higgs sector, we observe the upper mass bound to decrease with rising cutoff parameter $\\Lambda$. Moreover, the strength of the fermionic contribution to the upper mass bound is explored by comparing to the corresponding analysis in the pure $\\Phi^4$-theory.

  15. The edited version has been published in 2004 in N. Hopkins & R. Saad (eds), Upper Egypt, Identity and Change, Cairo,

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    The edited version has been published in 2004 in N. Hopkins & R. Saad (eds), Upper Egypt, Identity tendency, at least since the early 20th c., to describe Upper Egypt (hereafter as-Sa'd) as a specific these questions and were always stressing "How unknown and unfamiliar and neglected Upper Egypt was for the State

  16. Improving simulations of the upper ocean by inclusion of surface waves in the MellorYamada turbulence scheme

    E-Print Network [OSTI]

    Ezer,Tal

    mixing. Surface waves can enhance turbulence kinetic energy and mixing of the upper ocean via wave interaction on the MellorYamada scheme and upper ocean thermal structure are examined and compared with each scheme. The behaviors of the MellorYamada scheme, as well as the simulated upper ocean thermal structure

  17. Implementation Study of Energy Conservation Recommendations in the Upper Midwest Region

    E-Print Network [OSTI]

    Heisinger, K. P.; Bassett, K.; Twedt, M. P.

    The South Dakota State University (SDSU) Industrial Energy Optimization Program (IEOP) and Energy Analysis and Diagnostic Center (EADC) program perform energy audits for industrial companies in the Upper Midwest region of the United States. Each...

  18. Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya in Areas 105 and 131 on the Karari Ridge in the eastern Turkana Basin (Kenya). We identify the base

  19. Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Improved age control on early Homo fossils from the upper Burgi Member at Koobi Fora, Kenya in Areas 105 and 131 on the Karari Ridge in the eastern Turkana Basin (Kenya). We identify the base

  20. INDIANA UNIVERSITY COMPUTER SCIENCE DEPARTMENT PROFESSIONAL MASTER'S DEGREE: UPPER LEVEL GRADUATION REQUIREMENTS WORKSHEET

    E-Print Network [OSTI]

    Indiana University

    INDIANA UNIVERSITY COMPUTER SCIENCE DEPARTMENT PROFESSIONAL MASTER'S DEGREE: UPPER LEVEL GRADUATION790) Q: (Qualifying exam + 2 approved graduate-level courses (1, 2 above)) Qualifying exam: _______________________ Date:_____ Grade:____ R, S, TH: (Master's research project, Master's software project, University

  1. A Survey of Biological Underwater Noises Off the Coast of California and in Upper Puget Sound

    E-Print Network [OSTI]

    Johnson, Martin W

    1943-01-01T23:59:59.000Z

    OF CALIFORNIA AND IN UPPER PUGET SOUND by Martin W Johnson iin noise conditions in the Puget Sound area. ii CONFIDENTIALin background noises in the Puget Sound area which had been

  2. Upper limits on electric dipole moments of tau-lepton, heavy quarks, and W-boson

    E-Print Network [OSTI]

    A. G. Grozin; I. B. Khriplovich; A. S. Rudenko

    2009-03-04T23:59:59.000Z

    We discuss upper limits on the electric dipole moments (EDM) of the tau-lepton, heavy quarks, and W-boson, which follow from the precision measurements of the electron and neutron EDM.

  3. Upper limits on electric dipole moments of tau-lepton, heavy quarks, and W-boson

    E-Print Network [OSTI]

    Grozin, A G; Rudenko, A S

    2009-01-01T23:59:59.000Z

    We discuss upper limits on the electric dipole moments (EDM) of the tau-lepton, heavy quarks, and W-boson, which follow from the precision measurements of the electron and neutron EDM.

  4. Demonstration Sites of Best Management Practices: A Manual for the Upper Etowah River Alliance

    E-Print Network [OSTI]

    Rosemond, Amy Daum

    Demonstration Sites of Best Management Practices: A Manual for the Upper Etowah River Alliance and the Institute of Ecology #12;UERA BMPs Demonstation Sites Manual 2 of 2 Demonstration Sites of Best Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 iii. Best Management Practices

  5. Planktonic Foraminifera Record of the Mid Albian Sea Level Rise, Upper Magdalena Valley, Colombia

    E-Print Network [OSTI]

    Sukop, Mike

    Planktonic Foraminifera Record of the Mid Albian Sea Level Rise, Upper Magdalena Valley, Colombia Cretaceous unit in southern Colombia named "Tetun Limestone", have allowed the comparison between planktic foraminifera interval zones in Colombia: Ticinella primula and Biticinella breggiensis, with late

  6. The oceanic and cratonic upper mantle: Clues from joint interpretation of global velocity and attenuation models

    E-Print Network [OSTI]

    Asthenosphere Seismic attenuation Seismic velocity Anelasticity Partial melt Combined interpretation of seismicThe oceanic and cratonic upper mantle: Clues from joint interpretation of global velocity anelastic dispersion (Karato and Jung, 1998; Karato, 2003). A unique interpretation of seismological models

  7. Microsoft Word - Upper Jocko River Final Draft CX 7-15-2013.docx

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

    Upper Jocko River Property funding Fish and Wildlife Project No. and Contract No.: 2002-003-00, BPA-007168 Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021):...

  8. Development of a Robotic Device for the Physical Training of Human Upper Extremity

    E-Print Network [OSTI]

    Ramos, Jorge Adrian

    2013-04-22T23:59:59.000Z

    This thesis focuses on the development of a robotic device to be used in parallel with observational learning techniques for facilitating the recovery of the upper limb in post-stroke patients. It has been shown in the existing observational...

  9. Enhanced Doppler Effect in the Upper Hybrid Resonance Microwave Backscattering Experiment

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Enhanced Doppler Effect in the Upper Hybrid Resonance Microwave Backscattering Experiment A, Politekhnicheskaya 26, 194021 St.Petersburg, Russia Observations of enhanced Doppler frequency shift effect based on this effect is proposed. 1. INTRODUCTION Investigation of tokamak plasma poloidal rotation

  10. Pressure solution and microfracturing in primary oil migration, upper cretaceous Austin Chalk, Texas Gulf Coast

    E-Print Network [OSTI]

    Chanchani, Jitesh

    1994-01-01T23:59:59.000Z

    The Upper Cretaceous Austin Chalk is a well known source rock and fractured reservoir. Production is mainly from fractures, and the mechanism by which oil migrates from the matrix into the fractures is not well understood. Microfracturing due...

  11. Concurrent tectonic and climatic changes recorded in upper Tortonian sediments from the Eastern Mediterranean

    E-Print Network [OSTI]

    Utrecht, Universiteit

    evolution in the eastern Mediterranean region. Concurrent tectonic and climatic changes in the MetochiaConcurrent tectonic and climatic changes recorded in upper Tortonian sediments from the Eastern climatic reconstructions reveal substantial changes, especially on the North African continent which

  12. MUSIC-TYPE ALGORITHM FOR EDDY-CURRENT NONDESTRUC-TIVE EVALUATION OF SMALL DEFECTS IN METAL PLATES

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    MUSIC-TYPE ALGORITHM FOR EDDY-CURRENT NONDESTRUC- TIVE EVALUATION OF SMALL DEFECTS IN METAL PLATES Eddy-Current nondestructive evaluation of metal plates is of interest in a wide range of applications in the lower frequency band (kHz) for eddy-current testing, to retrieve small void defects inside a conducting

  13. Propagation of Lamb waves in one-dimensional quasiperiodic composite thin plates: A split of phonon band gap

    E-Print Network [OSTI]

    Li, Baowen

    Propagation of Lamb waves in one-dimensional quasiperiodic composite thin plates: A split of phonon the propagation of Lamb waves in one-dimensional quasiperiodic composite thin plates made of tungsten B spectra, Raman scattering spectra, and propagating modes of acoustic waves on corrugated surfaces.14

  14. The NICE{sup 3}-Whyco technologies Partnership: Saving energy, dollars, and the environment in the metal plating industry

    SciTech Connect (OSTI)

    Sullivan, G.P.; Hyner, R.; Masella, P.

    1999-07-01T23:59:59.000Z

    In partnership with the US Department of Energy's Office of Industrial Technology, Whyco Technologies, Inc., has developed an innovative perforated plating barrel used in the plating of metal parts. This new technology employs a thin-walled construction, differing from the traditional thick-wall design required to provide adequate structural integrity. The thicker walls lowered the efficiency of transferring plating solution into and out of the barrel and diminished the electrical current pushed through the holes and onto the parts being plated. By machining pockets out of the traditional thick-walled perforated structure, Whyco produced a honeycomb of staggered cells, allowing for the greatest number of holes per open area while maintaining structural integrity. Hydrodynamic pumping occurs during barrel rotation to create greater solution transfer than in traditional barrels. The Whyco barrel has higher current density plating, which leads to faster plating cycles, reduced bath concentration, and better plating of difficult chemistries such as in alloys. This new technology has helped the company reduce energy use by 16%, eliminate more than 480 tons/year of solid waste, and reduce wastewater by more than 17,000 gallons/day. The resulting cost savings total more than $500,000 annually. The company has manufactured and sold more than 275 of these barrels to other electroplating companies that are reporting up to a 40% increase in plating productivity and similar energy and environmental impacts.

  15. Wire-Bonding on Inkjet-Printed Silver Pads Reinforced by Electroless Plating for Chip on Flexible Board Packages

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    with pads that are suitable for wire-bonding in electronic packaging. Electroless nickel platingWire-Bonding on Inkjet-Printed Silver Pads Reinforced by Electroless Plating for Chip on Flexible processing. Here, a 1.7 µm thick nickel layer is deposited on top of 600 nm thick printed and sintered silver

  16. Heat Transfer -1 A satellite in space orbits the sun. The satellite can be approximated as a flat plate with

    E-Print Network [OSTI]

    Virginia Tech

    Heat Transfer - 1 A satellite in space orbits the sun. The satellite can be approximated as a flat plate with dimensions and properties given below. (a) Calculate the solar heat flux (W/m2 is at a distance where the solar heat flux (as defined above) is 500 W/m2 , and the flat plate is oriented

  17. Numerical modeling of effect of polyurea on response of steel plates to impulsive loads in direct pressure-pulse experiments

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    Numerical modeling of effect of polyurea on response of steel plates to impulsive loads in direct is studied, focusing on the effects of the relative position of polyurea with respect to the loading plates subjected to uniform blast loads and compared their predictions with experimental results. Bahei

  18. Evaluation of a slotted orifice plate flow meter using horizontal two phase flow

    E-Print Network [OSTI]

    Flores, Anita Elena

    2000-01-01T23:59:59.000Z

    the calibration coefficient (KY= flow coefficient (K) multiplied by the expansion factor (Y)), the Euler number, and the beta ratio. These results were analyzed to develop a calibration for the slotted orifice plate two-phase flow meter which can ultimately...

  19. General-Purpose Heat Source Safety Verification Test program: Edge-on flyer plate tests

    SciTech Connect (OSTI)

    George, T.G.

    1987-03-01T23:59:59.000Z

    The radioisotope thermoelectric generator (RTG) that will supply power for the Galileo and Ulysses space missions contains 18 General-Purpose Heat Source (GPHS) modules. The GPHS modules provide power by transmitting the heat of STYPu -decay to an array of thermoelectric elements. Each module contains four STYPuO2-fueled clads and generates 250 W(t). Because the possibility of a launch vehicle explosion always exists, and because such an explosion could generate a field of high-energy fragments, the fueled clads within each GPHS module must survive fragment impact. The edge-on flyer plate tests were included in the Safety Verification Test series to provide information on the module/clad response to the impact of high-energy plate fragments. The test results indicate that the edge-on impact of a 3.2-mm-thick, aluminum-alloy (2219-T87) plate traveling at 915 m/s causes the complete release of fuel from capsules contained within a bare GPHS module, and that the threshold velocity sufficient to cause the breach of a bare, simulant-fueled clad impacted by a 3.5-mm-thick, aluminum-alloy (5052-T0) plate is approximately 140 m/s.

  20. On the effect of perforated plates on the acoustics of annular combustors

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    On the effect of perforated plates on the acoustics of annular combustors E. Gullaud1 CERFACS], acoustic Helmholtz solvers can prove to be sufficient to compute the thermoacoustic modes of a combustor accuracy of these computations, the whole complex geometry of the combustor, including the combustion

  1. On the effect of perforated plates on the acoustics of annular combustors

    E-Print Network [OSTI]

    Nicoud, Franck

    On the effect of perforated plates on the acoustics of annular combustors E. Gullaud1 CERFACS [9, 10], the thermoacoustic modes of a combustor can be computed more 3 #12;efficiently by using to account for the complex geometry of the combustor, including the combustion chamber, casing, swirlers

  2. Flying-plate detonator using a high-density high explosive

    DOE Patents [OSTI]

    Stroud, John R. (Livermore, CA); Ornellas, Donald L. (Livermore, CA)

    1988-01-01T23:59:59.000Z

    A flying-plate detonator containing a high-density high explosive such as benzotrifuroxan (BTF). The detonator involves the electrical explosion of a thin metal foil which punches out a flyer from a layer overlying the foil, and the flyer striking a high-density explosive pellet of BTF, which is more thermally stable than the conventional detonator using pentaerythritol tetranitrate (PETN).

  3. Palaeomagnetic data from a Mesozoic Philippine Sea Plate ophiolite on Obi Island, Eastern Indonesia

    E-Print Network [OSTI]

    Royal Holloway, University of London

    Palaeomagnetic data from a Mesozoic Philippine Sea Plate ophiolite on Obi Island, Eastern Indonesia exposed on Obi Island, eastern Indonesia. Until the late Neogene, Obi formed part of the southern tectonic history of eastern Indonesia and northern New Guinea has been dominated by the punctuated

  4. A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR

    E-Print Network [OSTI]

    A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR A. Saleh A. Badran Mechanical Jordan Amman Jordan e-mail: asaleh@philadelphia.edu.jo e-mail: badran@ju.edu.jo ABSTRACT A solar distillation system was built and tested to study the effect of increasing the solar radiation incident

  5. Active Sensor Wave Propagation Health Monitoring of Beam and Plate Structures

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    1 Active Sensor Wave Propagation Health Monitoring of Beam and Plate Structures Victor Giurgiutiu, Jingjing Bao, Wei Zhao University of South Carolina ABSTRACT Active sensor wave propagation technique is a relatively new method for in-situ nondestructive evaluation (NDE). Elastic waves propagating in material

  6. Modeling of Plate-Like Precipitates in Aluminum Alloys--Comparison between Phase Field and Cellular

    E-Print Network [OSTI]

    Chen, Long-Qing

    Modeling of Plate-Like Precipitates in Aluminum Alloys--Comparison between Phase Field and Cellular artificial ageing of aluminum alloys: the phase field and the cellular automaton methods. Although both and computationally effective for the application of precipitation modeling. Keywords Aluminum alloys, Cellular

  7. An analytical investigation of transient effects on rewetting of heated thin flat plates

    SciTech Connect (OSTI)

    Platt, J.A.

    1993-08-01T23:59:59.000Z

    The rewetting of a hot surface is a problem of prime importance in the microgravity application of heat pipe technology, where rewetting controls the time before operations can be re-established following depriming of a heat pipe. Rewetting is also important in the nuclear industry (in predicting behavior during loss-of-coolant accidents), as well as in the chemical and petrochemical industries. Recently Chan and Zhang have presented a closed-form solution for the determination of the rewetting speed of a liquid film flowing over a finite (but long) hot plate subject to uniform heating. Unfortunately, their physically unreasonable initial conditions preclude a meaningful analysis of start-up transient behavior. A new nondimensionalization and closed-form solution for an infinitely-long, uniformly-heated plate is presented. Realistic initial conditions (step change in temperature across the wetting front) and boundary conditions (no spatial temperature gradients infinitely far from the wetting front) are employed. The effects of parametric variation on the resulting simpler closed-form solution are presented and compared with the predictions of a 'quasi-steady' model. The time to reach steady-state rewetting is found to be a strong function of the initial dry-region plate temperature. For heated plates it is found that in most cases the effect of the transient response terms cannot be neglected, even for large times.

  8. Natural convection heat transfer from a plate in a semicircular enclosure

    SciTech Connect (OSTI)

    Moore, G.A.; Hollands, K.G.T. (Univ. of Waterloo, Ontario (Canada))

    1992-02-01T23:59:59.000Z

    The present paper is about characterizing the two-dimensional convective transfer across the air-filled region between a flat plate and a semicircular cylindrical enclosure. In the subject geometry, a long thin plate at uniform temperature is contained coaxially and symmetrically in a long semicircular trough closed at the top and having a uniform but different temperature. Heat flows across the air-filled region between the two by both natural convection and gaseous conduction. The problem of characterizing the free convective component of this heat transfer - that is, the component caused by bulk fluid motion - is treated experimentally by using a heat balance technique, with the measurements being repeated at different pressures, in order to cover a wide Rayleigh number range, from Ra {approximately} 10 to Ra {approximately} 10{sup 8}. Nusselt number versus Rayleigh number plots are presented for each of several combinations of plate-to-trough spacing and tilt angle, and the plots are correlated by equations. The problem of characterizing the conductive component is treated by numerically solving the steady diffusion equation in the air-filled region, and the results are correlated as a function of the spacing and the plate thickness.

  9. Transient Thermal and Stress Response of A Helium-Cooled Tungsten Plate-Type Divertor

    E-Print Network [OSTI]

    Raffray, A. Ren

    Transient Thermal and Stress Response of A Helium- Cooled Tungsten Plate-Type Divertor X.R. Wang, A and shutdown operations have been analyzed with a coupled transient thermo-fluid and thermal-stress approach and investigated for power plant applications with a goal of accommodating a heat flux of 10 MW/m2 . The concepts

  10. Laser-enhanced patterning using photothermal effects: maskless plating and etching

    SciTech Connect (OSTI)

    von Gutfeld, R.J.

    1987-02-01T23:59:59.000Z

    We review our work on laser-enhanced plating and etching with emphasis on the chemical, electrochemical, and thermal mechanisms giving rise to the experimental observations. The metallurgical properties of the deposits and their applications, particularly in the field of microelectronics, are also discussed. The work on laser-enhanced electroplating and electrodeless plating includes high-speed deposition of copper, gold, and nickel by using the argon-ion laser as the source of localized energy. Depsition rates up to 3 orders of magnitude higher have been observed for laser-irradiated regions compared with nonirradiated ones. Mechanisms responsible for the plating enhancement are (1) enhanced chemical and electrochemical kinetics with increased temperature, (2) shifts in the local rest potential with temperature, and (3) local agitation of the solution as a result of large temperature gradients. Applications of these techniques to circuit design and repair as well as to high-speed plating of precious metals onto electrical contact areas of microelectronic circuits are considered. Experiments on high-speed laser-enhanced etching of several dielectrics are also reviewed. Volume removal rates as high as 10/sup 6/ ..mu..m/sup 3//sec for an alumina/TiC ceramic and 10/sup 5/ ..mu..m/sup 3//sec for <111> silicon using KOH as the etchant have been obtained.

  11. Experimental investigation of the condensation phenomenon in micro-grooved plates

    E-Print Network [OSTI]

    Barron-Jimenez, Rodolfo

    2001-01-01T23:59:59.000Z

    pressure induced by the difference in curvature of the meniscus formed in the groove. Triangular micro-grooves of different apex angles (45 and 60), and hydraulic diameters (0.14 mm, 0.20 mm, 0.21 mm, 0.32 mm, and 0.33 mm) were machined on a copper plate...

  12. COMPUTATION OF THE VIBRATION MODES OF A REISSNER-MINDLIN LAMINATED PLATE

    E-Print Network [OSTI]

    Rodríguez, Rodolfo

    -plane displacements. An a priori estimate of the regularity of the solution, independent of the plate thickness estimates including a double or- der for the vibration frequencies are obtained under appropriate of CONICET (Argentina). The second author was partially supported by FONDAP and BASAL projects CMM, Univer

  13. MATHEHATICAL NODELING OF THE TEHPERATURE PROFILES AND WELD DILUTION IN ELECTROSLAG WELDING OF STEEL PLATES

    E-Print Network [OSTI]

    Eagar, Thomas W.

    ) ) MATHEHATICAL NODELING OF THE TEHPERATURE PROFILES AND WELD DILUTION IN ELECTROSLAG WELDING describes a calculation procedure for the detailed predic- tion of temperature profiles and weld dilution in the electroslag welding of mild steel plates. The temperature profiles in the liquid slag and the liquid metal

  14. Community-level physiological proles of bacteria and fungi: plate type and incubation temperature inuences on

    E-Print Network [OSTI]

    differences in the microbial communities from these soils in situ. 2003 Federation of European microbial community structure with ecosystem function has been impeded, in part, because many corroborated by other microbial com- munity measures, including plate counts [11^14], fatty acid methyl ester

  15. AIAA 2002-3298 AERODYNAMICS OF TWO SIDE-BY-SIDE PLATES IN HYPERSONIC

    E-Print Network [OSTI]

    Riabov, Vladimir V.

    AIAA 2002-3298 AERODYNAMICS OF TWO SIDE-BY-SIDE PLATES IN HYPERSONIC RAREFIED-GAS FLOWS Vladimir V. Riabov* Rivier College, Nashua, New Hampshire 03060 Abstract Hypersonic rarefied-gas flows near two side transitional rarefied-gas-flow conditions (Knudsen numbers from 0.024 to 1.8). Strong influences

  16. Active vibration control of a fluid/plate system using a pole placement controller

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Active vibration control of a fluid/plate system using a pole placement controller Bogdan Robu reduction of the structural vibrations induced by the sloshing of large masses of fuel inside a partly full, published in "International Journal of Control 85, 6 (2012) 684-694" #12;Keywords Flexible system, fluid

  17. Mantle transition zone beneath the Caribbean-South American plate boundary and its tectonic implications

    E-Print Network [OSTI]

    Niu, Fenglin

    Mantle transition zone beneath the Caribbean-South American plate boundary and its tectonic seismic network of Venezuela to study the mantle transition zone structure beneath the Caribbean Caribbean, the 410-km is featured by a narrow (200 km EW) 25-km uplift extending in the NS direction around

  18. Erosion Damage of Nearby Plasma-Facing Components during a Disruption on the Divertor Plate*

    E-Print Network [OSTI]

    Harilal, S. S.

    Erosion Damage of Nearby Plasma-Facing Components during a Disruption on the Divertor Plate* A those of the United States Governmentor any agency thereof. #12;Erosion Damage of Nearby Plasma radiation emitted by heating of the vapor cloud. This radiation energy can cause serious erosion damage

  19. Crystallographic texture for tube and plate of the superelastic/shape-memory alloy Nitinol used for

    E-Print Network [OSTI]

    Ritchie, Robert

    Crystallographic texture for tube and plate of the superelastic/shape-memory alloy Nitinol used in Wiley InterScience (www.interscience.wiley.com). DOI: 10.1002/jbm.a.30214 Abstract: The superelastic/shape-memory equiatomic nickeltitanium alloy known for its shape memory, superelastic properties, and biocompatibility

  20. Let's eatfor the health of it ChooseMyPlate.gov

    E-Print Network [OSTI]

    choices. Twice a week, make seafood the protein on your plate. Eat beans, which are a natural source with little or no added sugars. Drink water instead of sugary drinks. There are about 10 packets, not full. Cook more often at home, where you are in control of what's in your food. When eating out, choose