Sample records for n2 purged characteristics

  1. Purge water management system

    DOE Patents [OSTI]

    Cardoso-Neto, Joao E. (North Augusta, SC); Williams, Daniel W. (Aiken, SC)

    1996-01-01T23:59:59.000Z

    A purge water management system for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under the Resource Conservation and Recovery Act is eliminated.

  2. Purge water management system

    DOE Patents [OSTI]

    Cardoso-Neto, J.E.; Williams, D.W.

    1995-01-01T23:59:59.000Z

    A purge water management system is described for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under the Resource Conservation and Recovery Act is eliminated.

  3. Automated Purge Valve Joseph Edward Farrell, III.

    E-Print Network [OSTI]

    Wood, Stephen L.

    Automated Purge Valve by Joseph Edward Farrell, III. Bachelor of Science Marine Engineering the undersigned committee hereby approve the attached thesis Automated Purge Valve by Joseph Edward Farrell, III.D. Department Head Department of Marine and Environmental Systems #12;iii Abstract Title: Automated Purge Valve

  4. Selective purge for hydrogenation reactor recycle loop

    DOE Patents [OSTI]

    Baker, Richard W. (Palo Alto, CA); Lokhandwala, Kaaeid A. (Union City, CA)

    2001-01-01T23:59:59.000Z

    Processes and apparatus for providing improved contaminant removal and hydrogen recovery in hydrogenation reactors, particularly in refineries and petrochemical plants. The improved contaminant removal is achieved by selective purging, by passing gases in the hydrogenation reactor recycle loop or purge stream across membranes selective in favor of the contaminant over hydrogen.

  5. Coal slurry fuel supply and purge system

    DOE Patents [OSTI]

    McDowell, Robert E. (Fairview, PA); Basic, Steven L. (Hornell, NY); Smith, Russel M. (North East, PA)

    1994-01-01T23:59:59.000Z

    A coal slurry fuel supply and purge system for a locomotive engines is disclosed which includes a slurry recirculation path, a stand-by path for circulating slurry during idle or states of the engine when slurry fuel in not required by the engine, and an engine header fluid path connected to the stand-by path, for supplying and purging slurry fuel to and from fuel injectors. A controller controls the actuation of valves to facilitate supply and purge of slurry to and from the fuel injectors. A method for supplying and purging coal slurry in a compression ignition engine is disclosed which includes controlling fluid flow devices and valves in a plurality of fluid paths to facilitate continuous slurry recirculation and supply and purge of or slurry based on the operating state of the engine.

  6. Well purge and sample apparatus and method

    DOE Patents [OSTI]

    Schalla, R.; Smith, R.M.; Hall, S.H.; Smart, J.E.; Gustafson, G.S.

    1995-10-24T23:59:59.000Z

    The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly with a packer, pump and exhaust, that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. The packer is positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion. 8 figs.

  7. Well purge and sample apparatus and method

    DOE Patents [OSTI]

    Schalla, Ronald (Kennewick, WA); Smith, Ronald M. (Richland, WA); Hall, Stephen H. (Kennewick, WA); Smart, John E. (Richland, WA); Gustafson, Gregg S. (Redmond, WA)

    1995-01-01T23:59:59.000Z

    The present invention specifically permits purging and/or sampling of a well but only removing, at most, about 25% of the fluid volume compared to conventional methods and, at a minimum, removing none of the fluid volume from the well. The invention is an isolation assembly with a packer, pump and exhaust, that is inserted into the well. The isolation assembly is designed so that only a volume of fluid between the outside diameter of the isolation assembly and the inside diameter of the well over a fluid column height from the bottom of the well to the top of the active portion (lower annulus) is removed. The packer is positioned above the active portion thereby sealing the well and preventing any mixing or contamination of inlet fluid with fluid above the packer. Ports in the wall of the isolation assembly permit purging and sampling of the lower annulus along the height of the active portion.

  8. Purging the Task Pump on the 800 Cold Probe Occasionally the task pump in the 800 cryobay will not pull a sufficient

    E-Print Network [OSTI]

    Oliver, Douglas L.

    Purging the Task Pump on the 800 Cold Probe Occasionally the task pump in the 800 cryobay will not pull a sufficient vacuum to start the cold probe. When this happens the pump may need to have a N2 panels off the cryobay and place somewhere safe · Make sure the task pump is off. If it is still running

  9. N=2 superconformal nets

    E-Print Network [OSTI]

    Sebastiano Carpi; Robin Hillier; Yasuyuki Kawahigashi; Roberto Longo; Feng Xu

    2014-11-21T23:59:59.000Z

    We provide an Operator Algebraic approach to N=2 chiral Conformal Field Theory and set up the Noncommutative Geometric framework. Compared to the N=1 case, the structure here is much richer. There are naturally associated nets of spectral triples and the JLO cocycles separate the Ramond sectors. We construct the N=2 superconformal nets of von Neumann algebras in general, classify them in the discrete series cnets with cnet representations.

  10. ATR/OTR-SY Tank Camera Purge System and in Tank Color Video Imaging System

    SciTech Connect (OSTI)

    Werry, S.M.

    1995-06-06T23:59:59.000Z

    This procedure will document the satisfactory operation of the 101-SY tank Camera Purge System (CPS) and 101-SY in tank Color Camera Video Imaging System (CCVIS). Included in the CPRS is the nitrogen purging system safety interlock which shuts down all the color video imaging system electronics within the 101-SY tank vapor space during loss of nitrogen purge pressure.

  11. Gas Purge in a Polymer Electrolyte Fuel Cell Puneet K. Sinha* and Chao-Yang Wang**,z

    E-Print Network [OSTI]

    University, University Park, Pennsylvania 16802, USA Gas purge intended to minimize residual water of residual water in a PEFC prior to engine shutdown. Minimal residual water ensued by gas purge fur- ther. In this work, we present a physical model describing water removal from a PEFC during gas purge. Various stages

  12. Purged window apparatus. [On-line spectroscopic analysis of gas flow systems

    DOE Patents [OSTI]

    Ballard, E.O.

    1982-04-05T23:59:59.000Z

    A purged window apparatus is described which utilizes tangentially injected heated purge gases in the vicinity of electromagnetic radiation transmitting windows and a tapered external mounting tube to accelerate these gases to provide a vortex flow on the window surface and a turbulent flow throughout the mounting tube thereby preventing backstreaming of flowing gases under investigation in a chamber to which a plurality of similar purged apparatus is attached with the consequent result that spectroscopic analyses can be undertaken for lengthy periods without the necessity of interrupting the flow for cleaning or replacing the windows due to contamination.

  13. Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant

    DOE Patents [OSTI]

    Zafred, Paolo R. (Pittsburgh, PA); Dederer, Jeffrey T. (Valencia, PA); Gillett, James E. (Greensburg, PA); Basel, Richard A. (Plub Borough, PA); Antenucci, Annette B. (Pittsburgh, PA)

    1996-01-01T23:59:59.000Z

    A fuel cell generator apparatus and method of its operation involves: passing pressurized oxidant gas, (O) and pressurized fuel gas, (F), into fuel cell modules, (10 and 12), containing fuel cells, where the modules are each enclosed by a module housing (18), surrounded by an axially elongated pressure vessel (64), where there is a purge gas volume, (62), between the module housing and pressure vessel; passing pressurized purge gas, (P), through the purge gas volume, (62), to dilute any unreacted fuel gas from the modules; and passing exhaust gas, (82), and circulated purge gas and any unreacted fuel gas out of the pressure vessel; where the fuel cell generator apparatus is transpatable when the pressure vessel (64) is horizontally disposed, providing a low center of gravity.

  14. Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant

    DOE Patents [OSTI]

    Zafred, P.R.; Dederer, J.T.; Gillett, J.E.; Basel, R.A.; Antenucci, A.B.

    1996-11-12T23:59:59.000Z

    A fuel cell generator apparatus and method of its operation involves: passing pressurized oxidant gas and pressurized fuel gas into modules containing fuel cells, where the modules are each enclosed by a module housing surrounded by an axially elongated pressure vessel, and where there is a purge gas volume between the module housing and pressure vessel; passing pressurized purge gas through the purge gas volume to dilute any unreacted fuel gas from the modules; and passing exhaust gas and circulated purge gas and any unreacted fuel gas out of the pressure vessel; where the fuel cell generator apparatus is transportable when the pressure vessel is horizontally disposed, providing a low center of gravity. 11 figs.

  15. N=2 Quantum String Scattering

    E-Print Network [OSTI]

    Gordon Chalmers; Olaf Lechtenfeld; Bernd Niemeyer

    2000-09-08T23:59:59.000Z

    We calculate the genus-one three- and four-point amplitudes in the 2+2 dimensional closed N=(2,2) worldsheet supersymmetric string within the RNS formulation. Vertex operators are redefined with the incorporation of spinor helicity techniques, and the quantum scattering is shown to be manifestly gauge and Lorentz invariant after normalizing the string states. The continuous spin structure summation over the monodromies of the worldsheet fermions is carried out explicitly, and the field-theory limit is extracted. The amplitude in this limit is shown to be the maximally helicity violating amplitude in pure gravity evaluated in a two-dimensional setting, which vanishes, unlike the four-dimensional result. The vanishing of the genus-one N=2 closed string amplitude is related to the absence of one-loop divergences in dimensionally regulated IIB supergravity. Comparisons and contrasts between self-dual field theory and the N=2 string theory are made at the quantum level; they have different S-matrices. Finally, we point to further relations with self-dual field theory and two-dimensional models.

  16. Deglacial radiocarbon history of tropical Atlantic thermocline waters: absence of CO2 reservoir purging signal

    E-Print Network [OSTI]

    deMenocal, Peter B.

    purging signal Caroline Cléroux a,*, Peter deMenocal a , Thomas Guilderson b,c a Lamont-Doherty Earth of the atmospheric CO2 increase during the Glacial to Holocene climate transition requires the outgassing of a deep production changes alone (Hughen et al., 2006). These two steps in atmospheric CO2 and radiocarbon anomalies

  17. N=2 supersymmetric Pais-Uhlenbeck oscillator

    E-Print Network [OSTI]

    Masterov, Ivan

    2015-01-01T23:59:59.000Z

    We construct an N=2 supersymmetric extension of the Pais-Uhlenbeck oscillator for distinct frequencies of oscillation. A link to a set of decoupled N=2 supersymmetric harmonic oscillators with alternating sign in the Hamiltonian is introduced. Symmetries of the model are discussed in detail. The investigation of a quantum counterpart of the constructed model shows that the corresponding Fock space contains negative norm states and the energy spectrum of the system is unbounded from below.

  18. N=2 supersymmetric Pais-Uhlenbeck oscillator

    E-Print Network [OSTI]

    Ivan Masterov

    2015-03-12T23:59:59.000Z

    We construct an N=2 supersymmetric extension of the Pais-Uhlenbeck oscillator for distinct frequencies of oscillation. A link to a set of decoupled N=2 supersymmetric harmonic oscillators with alternating sign in the Hamiltonian is introduced. Symmetries of the model are discussed in detail. The investigation of a quantum counterpart of the constructed model shows that the corresponding Fock space contains negative norm states and the energy spectrum of the system is unbounded from below.

  19. Cryogenic system with GM cryocooler for krypton, xenon separation from hydrogen-helium purge gas

    SciTech Connect (OSTI)

    Chu, X. X.; Zhang, D. X.; Qian, Y.; Liu, W. [Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800 (China); Zhang, M. M.; Xu, D. [Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China)

    2014-01-29T23:59:59.000Z

    In the thorium molten salt reactor (TMSR), fission products such as krypton, xenon and tritium will be produced continuously in the process of nuclear fission reaction. A cryogenic system with a two stage GM cryocooler was designed to separate Kr, Xe, and H{sub 2} from helium purge gas. The temperatures of two stage heat exchanger condensation tanks were maintained at about 38 K and 4.5 K, respectively. The main fluid parameters of heat transfer were confirmed, and the structural heat exchanger equipment and cold box were designed. Designed concentrations after cryogenic separation of Kr, Xe and H{sub 2} in helium recycle gas are less than 1 ppb.

  20. Critical phenomena in N=2* plasma

    E-Print Network [OSTI]

    A. Buchel; C. Pagnutti

    2010-10-16T23:59:59.000Z

    We use gauge theory/string theory correspondence to study finite temperature critical behaviour of mass deformed N=4 SU(N) supersymmetric Yang-Mills theory at strong coupling, also known as N=2* gauge theory. For certain range of the mass parameters, N=2* plasma undergoes a second-order phase transition. We compute all the static critical exponents of the model and demonstrate that the transition is of the mean-field theory type. We show that the dynamical critical exponent of the model is z=0, with multiple hydrodynamic relaxation rates at criticality. We point out that the dynamical critical phenomena in N=2* plasma is outside the dynamical universality classes established by Hohenberg and Halperin.

  1. The ${\\mathcal N}=2$ superconformal bootstrap

    E-Print Network [OSTI]

    Christopher Beem; Madalena Lemos; Pedro Liendo; Leonardo Rastelli; Balt C. van Rees

    2014-12-23T23:59:59.000Z

    In this work we initiate the conformal bootstrap program for ${\\mathcal N}=2$ superconformal field theories in four dimensions. We promote an abstract operator-algebraic viewpoint in order to unify the description of Lagrangian and non-Lagrangian theories, and formulate various conjectures concerning the landscape of theories. We analyze in detail the four-point functions of flavor symmetry current multiplets and of ${\\mathcal N}=2$ chiral operators. For both correlation functions we review the solution of the superconformal Ward identities and describe their superconformal block decompositions. This provides the foundation for an extensive numerical analysis discussed in the second half of the paper. We find a large number of constraints for operator dimensions, OPE coefficients, and central charges that must hold for any ${\\mathcal N}=2$ superconformal field theory.

  2. The ${\\mathcal N}=2$ superconformal bootstrap

    E-Print Network [OSTI]

    Beem, Christopher; Liendo, Pedro; Rastelli, Leonardo; van Rees, Balt C

    2014-01-01T23:59:59.000Z

    In this work we initiate the conformal bootstrap program for ${\\mathcal N}=2$ superconformal field theories in four dimensions. We promote an abstract operator-algebraic viewpoint in order to unify the description of Lagrangian and non-Lagrangian theories, and formulate various conjectures concerning the landscape of theories. We analyze in detail the four-point functions of flavor symmetry current multiplets and of ${\\mathcal N}=2$ chiral operators. For both correlation functions we review the solution of the superconformal Ward identities and describe their superconformal block decompositions. This provides the foundation for an extensive numerical analysis discussed in the second half of the paper. We find a large number of constraints for operator dimensions, OPE coefficients, and central charges that must hold for any ${\\mathcal N}=2$ superconformal field theory.

  3. Fusion rules for N=2 superconformal modules

    E-Print Network [OSTI]

    Minoru Wakimoto

    1998-07-22T23:59:59.000Z

    In this note we calculate the fusion coefficients for minimal series representations of the N=2 superconformal algebra by using a modified Verlinde's formula, and obtain associative and commutative fusion algebras with non-negative integral fusion coefficients at each level. Some references are added.

  4. Characterization of BCl3/N-2 plasmas

    E-Print Network [OSTI]

    Sia, S. F.

    2003-08-15T23:59:59.000Z

    measured with a DekTak surface a! Electronic mail: nordhed@ku.edu Characterization of BCl 3 N 2 plasmas Karen J. Nordheden a) and Joanne F. Sia Plasma Research Laboratory, Department of Chemical and Lawrence, Kansas 66045 ~Received 25 April 2003; accepted...

  5. Spent Nuclear Fuel (SNF) Project Cask and MCO Helium Purge System Design Review Completion Report Project A.5 and A.6

    SciTech Connect (OSTI)

    ARD, K.E.

    2000-04-19T23:59:59.000Z

    This report documents the results of the design verification performed on the Cask and Multiple Canister Over-pack (MCO) Helium Purge System. The helium purge system is part of the Spent Nuclear Fuel (SNF) Project Cask Loadout System (CLS) at 100K area. The design verification employed the ''Independent Review Method'' in accordance with Administrative Procedure (AP) EN-6-027-01.

  6. Parameterization of GDL Liquid Water Front Propagation and Channel Accumulation for Anode Purge Scheduling in Fuel Cells

    E-Print Network [OSTI]

    Stefanopoulou, Anna

    Parameterization of GDL Liquid Water Front Propagation and Channel Accumulation for Anode Purge, and (2) accumulation and transport of liquid water in the Gas Diffusion Layer (GDL) originally presented experimentally iden- tified parameter to match the rate of liquid water accumulation in the anode channel

  7. Spent nuclear fuel project cold vacuum drying facility vacuum and purge system design description

    SciTech Connect (OSTI)

    IRWIN, J.J.

    1998-11-30T23:59:59.000Z

    This document provides the System Design Description (SDD) for the Cold Vacuum Drying Facility (CVDF) Vacuum and Purge System (VPS) . The SDD was developed in conjunction with HNF-SD-SNF-SAR-O02, Safety Analysis Report for the Cold Vacuum Drying Facility, Phase 2, Supporting Installation of Processing Systems (Garvin 1998), The HNF-SD-SNF-DRD-002, 1998, Cold Vacuum Drying Facility Design Requirements, and the CVDF Design Summary Report. The SDD contains general descriptions of the VPS equipment, the system functions, requirements and interfaces. The SDD provides references for design and fabrication details, operation sequences and maintenance. This SDD has been developed for the SNFP Operations Organization and shall be updated, expanded, and revised in accordance with future design, construction and startup phases of the CVDF until the CVDF final ORR is approved.

  8. TECHNICAL REPORTS Continuous measurement of soil N2

    E-Print Network [OSTI]

    Minnesota, University of

    TECHNICAL REPORTS 606 Continuous measurement of soil N2 O emissions is needed to constrain N2 O constraint on estimates of N loss to the atmosphere and N2 O emission factors. Approximately 95% of soil N2 O simple methodology, and require no electrical power. However, manual sampling usually provides a low

  9. Bulk viscosity of N=2* plasma

    E-Print Network [OSTI]

    Alex Buchel; Chris Pagnutti

    2009-03-02T23:59:59.000Z

    We use gauge theory/string theory correspondence to study the bulk viscosity of strongly coupled, mass deformed SU(N_c) N=4 supersymmetric Yang-Mills plasma, also known as N=2^* gauge theory. For a wide range of masses we confirm the bulk viscosity bound proposed in arXiv:0708.3459. For a certain choice of masses, the theory undergoes a phase transition with divergent specific heat c_V ~ |1-T_c/T|^(-1/2). We show that, although bulk viscosity rapidly grows as T -> T_c, it remains finite in the vicinity of the critical point.

  10. N2Solar | 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 You are being directedAnnual SiteofEvaluatingGroup |JilinLu anMicrogreenMoon LakeMountainMunicipalRenewable EnergyN2Solar

  11. Evaluation of the Effectiveness of a New Technology for Extraction of Insoluble Impurities from Nuclear Power Plant Steam Generators with Purge Water

    SciTech Connect (OSTI)

    Bud'ko, I. O. [JSC NIITsE 'Tsentrenergo' (Russian Federation)] [JSC NIITsE 'Tsentrenergo' (Russian Federation); Zhukov, A. G. [Rostov Nuclear Power Plant (Russian Federation)] [Rostov Nuclear Power Plant (Russian Federation)

    2013-11-15T23:59:59.000Z

    An experimental technology for the removal of insoluble impurities from a horizontal steam generator with purge water during planned shutdowns of the power generating unit is improved through a more representative determination of the concentration of impurities in the purge water ahead of the water cleanup facility and a more precise effective time for the duration of the purge process. Tests with the improved technique at power generating unit No. 1 of the Rostov Nuclear Power Plant show that the efficiency with which insoluble impurities are removed from the steam generator volume was more than two orders of magnitude greater than under the standard regulations.

  12. Lean NOx Trap Regeneration Selectivity Towards N2O -- Similarities...

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

    Regeneration Selectivity Towards N2O -- Similarities and Differences Between H2, CO and C3H6 Reductants Lean NOx Trap Regeneration Selectivity Towards N2O -- Similarities and...

  13. 2, 779827, 2005 Inventories of N2O

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BGD 2, 779­827, 2005 Inventories of N2O and NO emissions from European forest soils M. Kesik et al Biogeosciences Discussions is the access reviewed discussion forum of Biogeosciences Inventories of N2O Inventories of N2O and NO emissions from European forest soils M. Kesik et al. Title Page Abstract

  14. Interaction of non-meat ingredients on sensory characteristics and chemical characteristics of pork loin chops during vacuum-packaged refrigerated storage

    E-Print Network [OSTI]

    Ford, Tara K.

    2005-11-01T23:59:59.000Z

    (0, 1, 2, 3 and 4%), potassium lactate (0, 1, 2, 3 and 4%) and sodium diacetate (0, .05, .10, .15 and .20%) on the color, sensory characteristics, package purge, water holding capacity, and pH of pork chops stored in vacuum-packaging for 0, 7, 14, 21...

  15. N=2 Superfields and the M-Fivebrane

    E-Print Network [OSTI]

    N. D. Lambert; P. C. West

    1998-02-23T23:59:59.000Z

    In this paper we provide a manifestly N=2 supersymmetric formulation of the M-fivebrane in the presence of threebrane solitons. The superspace form of four-dimensional effective equations for the threebranes are readily obtained and yield the complete Seiberg-Witten equations of motion for N=2 super-Yang-Mills. A particularly simple derivation is given by introducing an N=2 superfield generalisation of the Seiberg-Witten differential.

  16. Unexpected Nondissociative Binding of N2O on Oxygen Vacancies...

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

    Nondissociative Binding of N2O on Oxygen Vacancies on a Rutile TiO2(110)-11 . Unexpected Nondissociative Binding of N2O on Oxygen Vacancies on a Rutile TiO2(110)-11 ....

  17. Higgs branch localization of 3d N=2 theories

    E-Print Network [OSTI]

    Masashi Fujitsuka; Masazumi Honda; Yutaka Yoshida

    2014-09-17T23:59:59.000Z

    We study N=2 supersymmetric gauge theories on squashed 3-sphere and S^1xS^2. Recent studies have shown that the partition functions in a class of N=2 theories have factorized forms in terms of vortex and anti-vortex partition functions by explicitly evaluating matrix integrals obtained from Coulomb branch localization. We directly derive this structure by performing Higgs branch localization. It turns out that more general N=2 theories have this factorization property. We also discuss the factorization of supersymmetric Wilson loop.

  18. Hairy black holes in N=2 gauged supergravity

    E-Print Network [OSTI]

    Federico Faedo; Dietmar Klemm; Masato Nozawa

    2015-05-22T23:59:59.000Z

    We construct black holes with scalar hair in a wide class of four-dimensional N=2 Fayet-Iliopoulos gauged supergravity theories that are characterized by a prepotential containing one free parameter. Considering the truncated model in which only a single real scalar survives, the theory is reduced to an Einstein-scalar system with a potential, which admits at most two AdS critical points and is expressed in terms of a real superpotential. Our solution is static, admits maximally symmetric horizons, asymptotically tends to AdS space corresponding to an extremum of the superpotential, but is disconnected from the Schwarzschild-AdS family. The condition under which the spacetime admits an event horizon is addressed for each horizon topology. It turns out that for hyperbolic horizons the black holes can be extremal. In this case, the near-horizon geometry is AdS_2 x H^2, where the scalar goes to the other, non-supersymmetric, critical point of the potential. Our solution displays fall-off behaviours different from the standard one, due to the fact that the mass parameter $m^2=-2/\\ell^2$ at the supersymmetric vacuum lies in a characteristic range $m^2_{BF}\\le m^2\\le m^2_{\\rm BF}+\\ell^{-2}$ for which the slowly decaying scalar field is also normalizable. Nevertheless, we identify a well-defined mass for our spacetime, following the prescription of Hertog and Maeda. Quite remarkably, the product of all horizon areas is not given in terms of the asymptotic cosmological constant alone, as one would expect in absence of electromagnetic charges and angular momentum. Our solution shows qualitatively the same thermodynamic behaviour as the Schwarzschild-AdS black hole, but the entropy is always smaller for a given mass and AdS curvature radius. We also find that our spherical black holes are unstable against radial perturbations.

  19. Holography for N = 2[superscript *] on S[superscript 4

    E-Print Network [OSTI]

    Bobev, Nikolay

    We find the gravity dual of N = 2[superscript *] super-Yang-Mills theory on S [superscript 4] and use holography to calculate the universal contribution to the corresponding S [superscript 4] free energy at large N and ...

  20. K-311-1/K-310-3 Purge Cascade Process Description, Oak Ridge Environmental Management Accelerated Cleanup Project, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Shoemaker J.E.

    2009-05-13T23:59:59.000Z

    K-311-1 was constructed along with the rest of the K-25 Building in the 1943-1945 timeframe. K-311-1 was equipped with Size 3 converters and Size 38 Allis Chalmers{trademark} single-stage centrifugal compressors driven by 3600 rpm electric motors, and the unit operated as the 'bottom' unit flow-wise in K-25. The depleted flow from the bottom stage in K-311-1 passed through booster compressors and flowed to the K-601 Building where the depleted or 'tails' material was removed. In 1948, after the K-27 Building was completed, the decision was made to operate K-27 and K-25 in series rather than operate the two buildings as separate entities. To facilitate this operation, concrete bases were poured and two sets of booster compressors were installed in the extreme West end of the K-311-1 cell floor. These compressors were enclosed in heated housings and consisted of Size 38 compressors. One pair was to boost the 'B' flow between K-25 and K-27, and one pair was to boost the 'A' flow between the buildings. Each station operated with one compressor on-stream and the other in standby. (Reference 9) Each station also was equipped with a Size 2 after-cooler located in the discharge stream downstream of the junction of the onstream and standby compressors. Additional gaseous diffusion capacity was added at Oak Ridge as K-29, K-31, and K-33 were constructed and placed in service in the early 1950s. As a result of the additional process equipment added by these buildings, in-leakage of light gases to the cascade including light gases introduced into the cascade as a result of purging operations threatened to exceed the capacity of the existing K-312 Purge Cascade facilities in the K-25 Building. As a result, in 1954 K-311-1 was converted to a side purge cascade to remove light gases from the process gas stream as the stream entered K-25 from K-27. Low molecular weight gas in-leakage in K-33, K-31, K-29, and K-27 was removed by the K-311-1 Side Purge Facility and a relatively pure stream of UF6 then passed from K-311-1 into the upstream cells in K-25. In-leakage of light gases in the K-25 Building continued to be removed by the K-312 Purge Facilities. K-311-1 operated as a Side Purge Cascade from 1954 until the K-25 Building was shut down in 1964; at that time K-311-1 became the Oak Ridge Gaseous Diffusion Plant (ORGDP) Top (and only) Purge Cascade. The adjacent K-310-3 Unit was operated along with K-311-1 as the top purge cascade and K-310-2 was also operated at times to supplement cells in the K311-1/K-310-3 Purge Cascade. K-311-1 was shut down on February 14, 1977, after the newer, larger capacity K-402-9 Purge Cascade was placed in operation. K-310-3 continued to operate until the K-402-8 Coolant Removal Unit was placed in service, and K-310-3 was shut down on March 14, 1978. Since the K-311-1 and K-310-3 units continued to operate after K-25 shutdown, removal of equipment such as valves and piping for other projects did not occur in this area. As a result, these two units have not been exposed to atmospheric wet air over the years as much of the remainder of K-25 has been exposed. Any deposits or residual gases contained in K-311-1 or K-310-3 are not likely to be fully hydrolyzed.

  1. Self-Dual Supergravity from N = 2 Strings

    SciTech Connect (OSTI)

    de Boer, J.; Skenderis, K.

    1997-09-24T23:59:59.000Z

    A new heterotic N = 2 string with manifest target space supersymmetry is constructed by combining a conventional N = 2 string in the right-moving sector and a Green-Schwarz-Berkovits type string in the left-moving sector. The corresponding sigma model is then obtained by turning on background fields for the massless excitations. We compute the beta functions and we partially check the OPE's of the superconformal algebra perturbatively in {alpha}{prime}, all in superspace. The resulting field equations describe N = 1 self-dual supergravity.

  2. N2-associated surface warming on early Mars

    E-Print Network [OSTI]

    von Paris, P; Rauer, H; Stock, J W

    2013-01-01T23:59:59.000Z

    Early Mars may have had a warmer and denser atmosphere allowing for the presence of liquid water on the surface. However, climate model studies have not been able to reproduce these conditions even with a CO2 atmosphere of several bars. Recent 3D simulations of the early Mars climate show that mean surface temperatures only slightly below 273K could be reached locally. We want to investigate the effect of increased partial pressures of N2 on early Mars' surface temperature by including pressure broadening of absorption lines and collision-induced N2-N2 absorption. A 1D radiative-convective cloud-free atmospheric model was used to calculate temperature profiles and surface conditions. We performed a parameter study varying the N2 partial pressures from 0 to 0.5bar at CO2 partial pressures between 0.02bar and 3bar. These values are consistent with existing estimates of the initial, pre-Noachian reservoir. Solar insolation was set to be consistent with the late Noachian. Our 1D global mean simulations clearly sh...

  3. Ris-PhD-14(EN) Production of N2O in grass-clover pastures

    E-Print Network [OSTI]

    source of the strong greenhouse gas nitrous oxide (N2O), and in soil N2O is mainly produced by nitrifying that only 3.2 0.5 ppm of the recently fixed N2 was emitted as N2O on a daily basis. Thus, recently fixed N.3 N2O emission from grassland 13 1.4 N2O formation in urine patches 14 1.5 Greenhouse gas inventories

  4. Unique Thylakoid Membrane Architecture of aUnicellular N2-Fixing...

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

    Unique Thylakoid Membrane Architecture of aUnicellular N2-Fixing Cyanobacterium Revealedby Electron Tomography. Unique Thylakoid Membrane Architecture of aUnicellular N2-Fixing...

  5. Photodesorption of ices I: CO, N2 and CO2

    E-Print Network [OSTI]

    Karin I. Oberg; Ewine F. van Dishoeck; Harold Linnartz

    2009-01-23T23:59:59.000Z

    A longstanding problem in astrochemistry is how molecules can be maintained in the gas phase in dense inter- and circumstellar regions. Photodesorption is a non-thermal desorption mechanism, which may explain the small amounts of observed cold gas in cloud cores and disk mid-planes. This paper aims to determine the UV photodesorption yields and to constrain the photodesorption mechanisms of three astrochemically relevant ices: CO, N2 and CO2. In addition, the possibility of co-desorption in mixed and layered CO:N2 ices is explored. The ice photodesorption is studied experimentally under ultra high vacuum conditions and at 15-60 K using a hydrogen discharge lamp (7-10.5 eV). The ice desorption during irradiation is monitored by reflection absorption infrared spectroscopy of the ice and simultaneous mass spectrometry of the desorbed molecules. Both the UV photodesorption yields per incident photon and the photodesorption mechanisms are molecule specific. CO photodesorbs without dissociation from the surface layer of the ice. N2, which lacks an electronic transition in this wavelength range, has a photodesorption yield that is more than an order of magnitude lower. This yield increases significantly due to co-desorption when N2 is mixed in with or layered on top of CO ice. CO2 photodesorbs through dissociation and subsequent recombination from the top 10 layers of the ice. At low temperatures (15-18 K) the derived photodesorption yields are 2.7x10^-3 and CO2 photodesorption yield is 1.2x10^-3x(1-e^(-X/2.9)) + 1.1x10^-3x(1-e^(-X/4.6)) molecules photon-1, where X is the ice thickness in monolayers and the two parts of the expression represent a CO2 and CO photodesorption pathway.

  6. Nonlocality from N>2 independent single-photon emitters

    SciTech Connect (OSTI)

    Thiel, C.; Wiegner, R.; Zanthier, J. von [Institut fuer Optik, Information und Photonik, Universitaet Erlangen-Nuernberg, D-91058 Erlangen (Germany); Agarwal, G. S. [Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072 (United States)

    2010-09-15T23:59:59.000Z

    We demonstrate that intensity correlations of second order in the fluorescence light of N>2 single-photon emitters may violate locality while the visibility of the signal remains below 1/{radical}(2){approx_equal}71%. For this, we derive a homogeneous Bell-Wigner-type inequality, which can be applied to a broad class of experimental setups. We trace the violation of this inequality back to path entanglement created by the process of detection.

  7. Transpiration purged optical probe

    DOE Patents [OSTI]

    2004-01-06T23:59:59.000Z

    An optical apparatus for clearly viewing the interior of a containment vessel by applying a transpiration fluid to a volume directly in front of the external surface of the optical element of the optical apparatus. The fluid is provided by an external source and transported by means of an annular tube to a capped end region where the inner tube is perforated. The perforation allows the fluid to stream axially towards the center of the inner tube and then axially away from an optical element which is positioned in the inner tube just prior to the porous sleeve. This arrangement draws any contaminants away from the optical element keeping it free of contaminants. In one of several embodiments, the optical element can be a lens, a viewing port or a laser, and the external source can provide a transpiration fluid having either steady properties or time varying properties.

  8. A Hydrogen-Evolving Ni(P2N2)2 Electrocatalyst Covalently Attached...

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

    A Hydrogen-Evolving Ni(P2N2)2 Electrocatalyst Covalently Attached to a Glassy Carbon Electrode: Preparation, Characterization, A Hydrogen-Evolving Ni(P2N2)2 Electrocatalyst...

  9. Accurate dipole polarizabilities for water clusters n=2-12 at...

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

    dipole polarizabilities for water clusters n2-12 at the coupled-cluster level of theory and benchmarking of various Accurate dipole polarizabilities for water clusters n2-12 at...

  10. Offsetting the radiative benefit of ocean iron fertilization by enhancing N2O emissions

    E-Print Network [OSTI]

    Gruber, Nicolas

    from the atmospheric CO2 reduction significantly, because N2O is a much more powerful greenhouse gas

  11. Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic eects

    E-Print Network [OSTI]

    Seitzinger, Sybil

    Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic, are increasing due to human activities. Our analysis suggests that a third of global anthropogenic N2O emission the remainder. Over 80% of aquatic anthropogenic N2O emissions are from the Northern Hemisphere mid

  12. Structure and critical function of Fe and acid sites in Fe-ZSM-5 in propane oxidative dehydrogenation with N2O and N2O decomposition

    E-Print Network [OSTI]

    Sklenak, Stepan

    Structure and critical function of Fe and acid sites in Fe-ZSM-5 in propane oxidative species Steamed Fe-zeolites Mssbauer spectroscopy UVVis FTIR H2-TPR N2O decomposition Propane oxidative of propane to propene with N2O. The evacuated non-steamed FeH-ZSM-5 contained high concentration of Brnsted

  13. N=2 cascade revisited and the enhancon bearings

    SciTech Connect (OSTI)

    Benini, Francesco [Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States); SISSA and INFN-Sezione di Trieste Via Beirut 2, I 34014 Trieste (Italy); Bertolini, Matteo [SISSA and INFN-Sezione di Trieste Via Beirut 2, I 34014 Trieste (Italy); Closset, Cyril [Physique Theorique et Mathematique and International Solvay Institutes, Universite Libre de Bruxelles, C.P. 231, 1050 Bruxelles (Belgium); Cremonesi, Stefano [SISSA and INFN-Sezione di Trieste Via Beirut 2, I 34014 Trieste (Italy); Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy, Tel-Aviv University, Ramat-Aviv 69978 (Israel)

    2009-03-15T23:59:59.000Z

    Supergravity backgrounds with varying fluxes generated by fractional branes at nonisolated Calabi-Yau singularities had escaped a precise dual field theory interpretation so far. In the present work, considering the prototypical example of such models, the CxC{sup 2}/Z{sub 2} orbifold, we propose a solution for this problem, and show that the known cascading solution corresponds to a vacuum on the Coulomb branch of the corresponding quiver gauge theory involving a sequence of strong coupling transitions reminiscent of the baryonic root of N=2 supersymmetric quantum chromodynamics . We also find a slight modification of this cascading vacuum which upon mass deformation is expected to flow to the Klebanov-Strassler cascade. Finally, we discuss an infinite class of vacua on the Coulomb branch whose renormalization group flows include infinitely coupled conformal regimes, and explain their gravitational manifestation in terms of new geometric structures that we dub enhancon bearings. Repulson-free backgrounds dual to all the vacua we analyze are explicitly provided.

  14. Hairy black holes in N=2 gauged supergravity

    E-Print Network [OSTI]

    Faedo, Federico; Nozawa, Masato

    2015-01-01T23:59:59.000Z

    We construct black holes with scalar hair in a wide class of four-dimensional N=2 Fayet-Iliopoulos gauged supergravity theories that are characterized by a prepotential containing one free parameter. Considering the truncated model in which only a single real scalar survives, the theory is reduced to an Einstein-scalar system with a potential, which admits at most two AdS critical points and is expressed in terms of a real superpotential. Our solution is static, admits maximally symmetric horizons, asymptotically tends to AdS space corresponding to an extremum of the superpotential, but is disconnected from the Schwarzschild-AdS family. The condition under which the spacetime admits an event horizon is addressed for each horizon topology. It turns out that for hyperbolic horizons the black holes can be extremal. In this case, the near-horizon geometry is AdS_2 x H^2, where the scalar goes to the other, non-supersymmetric, critical point of the potential. Our solution displays fall-off behaviours different fro...

  15. The Inner Solar System Characteristics of Earth

    E-Print Network [OSTI]

    Walter, Frederick M.

    The Inner Solar System #12;The Earth #12;Characteristics of Earth A terrestrial, rocky planet floats on mantle Crust is created and destroyed #12;Characteristics of Earth Today Surface: 70% water 30% land Atmosphere: 77% N2 21% O2 0.1% H2O +Ar, CO2, Ne #12;The Dynamic Earth Molten Core

  16. Kazama-Suzuki Models of N=2 Superconformal Field Theory and Manin triples

    E-Print Network [OSTI]

    S. E. Parkhomenko

    2014-11-08T23:59:59.000Z

    Kazama-Suzuki coset models is an interesting class of N=2 supersymmetric models of conformal field theory which are used to build realistic models of superstring in 4 dimensions. We formulate Kazama-Suzuki construction of N=2 superconformal coset models using more general language of Manin triples and represent the corresponding N=2 Virasoro superalgebra currents in explicit form. A correspondence between the Kazama-Suzuki models and Poisson homogeneous spaces is established also.

  17. The inverse conductivity problem with power densities in dimension n2

    E-Print Network [OSTI]

    Franois Monard, Guillaume Bal

    2012-06-19T23:59:59.000Z

    Jun 19, 2012 ... The inverse conductivity problem with power densities in dimension n ? 2. Franois Monard Guillaume Bal. Dept. of Applied Physics and...

  18. Generalised CP and $\\Delta (6n^2)$ Family Symmetry in Semi-Direct Models of Leptons

    E-Print Network [OSTI]

    Ding, Gui-Jun; Neder, Thomas

    2014-01-01T23:59:59.000Z

    We perform a detailed analysis of $\\Delta (6n^2)$ family symmetry combined with a generalised CP symmetry in the lepton sector, breaking to different remnant symmetries $G_{\

  19. RESEARCH ARTICLE Greenhouse gas emissions (CO2, CH4, and N2O) from several

    E-Print Network [OSTI]

    Wehrli, Bernhard

    RESEARCH ARTICLE Greenhouse gas emissions (CO2, CH4, and N2O) from several perialpine and alpine hydropower reservoirs by diffusion and loss in turbines T. Diem S. Koch S. Schwarzenbach B. Wehrli C investigated greenhouse gas emissions (CO2, CH4, and N2O) from reservoirs located across an altitude gradient

  20. 15N2 formation and fast oxygen isotope exchange during pulsed...

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

    N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOxCeO2. 15N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOx...

  1. Selective Catalytic Oxidation (SCO) of NH3 to N2 for Hot Exhaust...

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

    Oxidation (SCO) of NH3 to N2 for Hot Exhaust Treatment Investigation of a series of transition metal oxides and precious metal based catalysts for ammonia selective oxidation at...

  2. Classical M-Fivebrane Dynamics and Quantum N=2 Yang-Mills

    E-Print Network [OSTI]

    P. S. Howe; N. D. Lambert; P. C. West

    1997-11-05T23:59:59.000Z

    We obtain the complete quantum Seiberg-Witten effective action for N=2 supersymmetric SU(N) Yang-Mills theory from the classical M-fivebrane equations of motion with N threebranes moving in its worldvolume.

  3. The development of N2S2 metal complexes as bidentate ligands for organometallic chemistry

    E-Print Network [OSTI]

    Rampersad, Marilyn Vena

    2007-04-25T23:59:59.000Z

    Where Noted, for the Carbonyl Carbons in [(NiN2S2)W(CO)4] Complexes with the CO Designations.............................................................................................54 III-5. Half-Wave and Anodic Potentials for Reductions.... Stick drawings illustrating a) mutual buckling of the NiN2S2 ligand and Pd(C(O)CH3(Cl) unit at the sulfur hinges and b) carbonyl acetyl bond rotation...

  4. Atmospheric O2//N2 changes, 19932002: Implications for the partitioning of fossil fuel CO2 sequestration

    E-Print Network [OSTI]

    Ho, David

    Atmospheric O2//N2 changes, 1993­­2002: Implications for the partitioning of fossil fuel CO2. Cassar (2005), Atmospheric O2/N2 changes, 1993­2002: Implications for the partitioning of fossil fuel CO2. The O2/N2 ratio of air is falling because combustion of fossil fuel and biomass both con- sume O2

  5. Gauge/Gravity Duality, Green Functions of N=2 SYM and Radial/Energy-Scale Relation

    E-Print Network [OSTI]

    Xiao-Jun Wang; Seng Hu

    2002-07-19T23:59:59.000Z

    We consider supergravity configuration of D5 branes wrapped on supersymmetric 2-cycles and use it to calculate one-point and two-point Green functions of some special operators in N=2 super Yang-Mills theory. We show that Green functions obtained from supergravity include two very different parts. One of them corresponds to perturbative results of quantum field theory, and another is a non-perturbative effect which corresponds to contribution from instantons with fractional charge. Comparing Green functions obtained from supergravity and gauge theory, we obtain radial/energy-scale relation for this gauge/gravity correspondence with N=2 supersymmetry. This relation leads right beta-function of N=2 SYM from supergravity configuration.

  6. What can topology changes in the oddball N2 reveal about underlying processes?

    E-Print Network [OSTI]

    Nieuwenhuis, Sander

    of Victoria, Victoria, British Columbia, Canada Correspondence to Christopher M. Warren, MSc, Department of Psychology, University of Victoria, Courier: Room A234, Cornett Building, PO BOX 3050, STN CSC, Victoria, BC 18 July 2011 accepted 7 August 2011 The N2 is a negative deflection in the human event- related brain

  7. Shock-Tube Study of Methane Ignition with NO2 and N2O

    E-Print Network [OSTI]

    Pemelton, John

    2012-10-19T23:59:59.000Z

    . The experimental pressure range was 1 - 44 atm and the temperature range tested was 1177 2095 K. The additives NO2 and N2O were added in concentrations from 831 ppm to 3539 ppm. The results of the mixtures with NO2 have a reduction in ignition delay time across...

  8. Temperature Dependence of Scott Thermomagnetic Torque in N2, Ch4, and Hd

    E-Print Network [OSTI]

    Adair, Thomas W.

    1972-01-01T23:59:59.000Z

    curve'which has a maxi- mum value at a field-to-pressure .ratio (P/P) ~. The temperature dependence of (JI/P) ~ for N2 and CH4 has been measured, and from these data the value for the optimum ratio of preces- sion frequency to collision frequency...

  9. Exact beta-functions in softly-broken N=2 Chern-Simons matter theories

    E-Print Network [OSTI]

    I. Jack; C. Luckhurst

    2011-01-21T23:59:59.000Z

    We present exact results for the beta-functions for the soft-breaking parameters in softly-broken N=2 Chern-Simons matter theories in terms of the anomalous dimension in the unbroken theory. We check our results explicitly up to the two loop level.

  10. THE RADIO NUMBERS OF ALL GRAPHS OF ORDER n AND DIAMETER n -2

    E-Print Network [OSTI]

    Tomova, Maggy

    THE RADIO NUMBERS OF ALL GRAPHS OF ORDER n AND DIAMETER n - 2 KATHERINE BENSON, MATTHEW PORTER, AND MAGGY TOMOVA Abstract. A radio labeling of a connected graph G is a function c : V (G) Z+ such that for every two distinct vertices u and v of G distance(u, v) + |c(u) - c(v)| 1 + diameter(G). The radio

  11. The bioinorganic chemistry of N2S2 metal complexes: reactivity and ligating ability

    E-Print Network [OSTI]

    Golden, Melissa Lynn

    2005-08-29T23:59:59.000Z

    in its diazacycle backbone ring producing subtle differences in N2S2Ni geometry. Metallation of Ni-1?? with PdCl2, Pd(NO3)2, and NiBr2 produced three structural forms: Ni2Pd basket, Ni4Pd2 C4-paddlewheel, and Ni3 slant chair. In attempts to provide a...

  12. N2 DISSOCIATION IN THE MESOSPHERE DUE TO SECONDARY ELECTRONS DURING A SOLAR

    E-Print Network [OSTI]

    Ulich, Thomas

    ) Sodankylä Geophysical Observatory, Sodankylä, Finland. (pekka.verronen@fmi.fi/+358-9-19294603) Solar protonN2 DISSOCIATION IN THE MESOSPHERE DUE TO SECONDARY ELECTRONS DURING A SOLAR PROTON EVENT, Helsinki, Finland. (2) Institute of Astronomy of the Russian Academy of Sciences, Moscow, Russia. (3

  13. Aqueous phase nitration of phenol by N2O5 and ClNO2

    E-Print Network [OSTI]

    Heal, Mathew R; Harrison, Mark A J; Cape, J Neil

    2007-01-01T23:59:59.000Z

    Nitrophenols are present in the atmospheric gas phase and in cloud and rainwater. Their formation via aqueous-phase reactions of phenol with the nitronium ion, NO2+, arising from N2O5 and ClNO2 partitioning into the aqueous phase, has been proposed...

  14. Enhancement of CO2/N2 selectivity in a metal-organic framework by cavity modification

    E-Print Network [OSTI]

    are a strong motivation to reduce CO2 emissions from industrial processes. Burning of fossil fuel to generate electricity is a major source of CO2 in the atmosphere, but the capture and sequestration of CO2 from flue gasEnhancement of CO2/N2 selectivity in a metal-organic framework by cavity modification Youn-Sang Bae

  15. Sminaire du Groupe N2IS Manipulation of chemicals in droplet-based microfluidics

    E-Print Network [OSTI]

    Ingrand, Franois

    Sminaire du Groupe N2IS Manipulation of chemicals in droplet-based microfluidics Le 06 Septembre TOULOUSE Cedex 4 Rsum Droplet-based microfluidics has a tremendous potential for the miniaturization of chemicals in microfluidic systems is therefore a key to reliably downscale the assays from microtiter plates

  16. CAHIER DU CAMPUS LOGISTIQUE N2 Des carrefours intelligents pour une meilleure gestion du

    E-Print Network [OSTI]

    Boyer, Edmond

    CAHIER DU CAMPUS LOGISTIQUE N2 Des carrefours intelligents pour une meilleure gestion du gestion du trafic en milieu urbain ncessite le dploiement de solutions techniques innovantes pour Journal Europen des Systmes Automatiss. MOTS-CLS : gestion du trafic, rseau de Petri hybride, systme

  17. Dielectric response of N2-Ar solid solutions in the audio frequency range S. Pilla,* J. A. Hamida, K. A. Muttalib, and N. S. Sullivan

    E-Print Network [OSTI]

    Muttalib, Khandker

    -long-range quadrupolar ordered phase phase IB .5,6 At intermediate N2 concentrations, 57 x(N2) 78 mol%, the lattice

  18. N=2 quiver gauge theories on A-type ALE spaces

    E-Print Network [OSTI]

    Ugo Bruzzo; Francesco Sala; Richard J. Szabo

    2014-10-27T23:59:59.000Z

    We survey and compare recent approaches to the computation of the partition functions and correlators of chiral BPS observables in $\\mathcal{N}=2$ gauge theories on ALE spaces based on quiver varieties and the minimal resolution $X_k$ of the $A_{k-1}$ toric singularity $\\mathbb{C}^2/\\mathbb{Z}_k$, in light of their recently conjectured duality with two-dimensional coset conformal field theories. We review and elucidate the rigorous constructions of gauge theories for a particular family of ALE spaces, using their relation to the cohomology of moduli spaces of framed torsion free sheaves on a suitable orbifold compactification of $X_k$. We extend these computations to generic $\\mathcal{N}=2$ superconformal quiver gauge theories, obtaining in these instances new constraints on fractional instanton charges, a rigorous proof of the Nekrasov master formula, and new quantizations of Hitchin systems based on the underlying Seiberg-Witten geometry.

  19. Vafa-Witten Theory on N=2 and N=4 Twisted Superspace in Four Dimensions

    E-Print Network [OSTI]

    Kato, Junji

    2009-01-01T23:59:59.000Z

    We construct a new off-shell twisted hypermultiplet with a scalar and an anti-self-dual tensor superfields. Using the N=2 twisted superspace formalism, we construct a Donaldson-Witten theory coupled to the hypermultiplet. We show that this action possesses the Vafa-Witten type N=4 twisted supersymmetry at the on-shell level. We also reconstruct the action using a N=4 twisted superconnection formalism.

  20. Vafa-Witten Theory on N=2 and N=4 Twisted Superspace in Four Dimensions

    E-Print Network [OSTI]

    Junji Kato; Akiko Miyake

    2008-08-25T23:59:59.000Z

    We construct a new off-shell twisted hypermultiplet with a scalar and an anti-self-dual tensor superfields. Using the N=2 twisted superspace formalism, we construct a Donaldson-Witten theory coupled to the hypermultiplet. We show that this action possesses the Vafa-Witten type N=4 twisted supersymmetry at the on-shell level. We also reconstruct the action using a N=4 twisted superconnection formalism.

  1. Steric, Quantum, and Electrostatic Effects on S{sub N}2 Reaction Barriers in Gas Phase

    SciTech Connect (OSTI)

    Liu, Shubin; Hu, Hao; Pedersen, Lee G.

    2010-05-13T23:59:59.000Z

    Biomolecular nucleophilic substitution reactions, S{sub N}2, are fundamental and commonplace in chemistry. It is the well-documented experimental finding in the literature that vicinal substitution with bulkier groups near the reaction center significantly slows the reaction due to steric hindrance, but theoretical understanding in the quantitative manner about factors dictating the S{sub N}2 reaction barrier height is still controversial. In this work, employing the new quantification approach that we recently proposed for the steric effect from the density functional theory framework, we investigate the relative contribution of three independent effectssteric, electrostatic, and quantumto the S{sub N}2 barrier heights in gas phase for substituted methyl halide systems, R{sub 1}R{sub 2}R{sub 3}CX, reacting with the fluorine anion, where R{sub 1}, R{sub 2}, and R{sub 3} denote substituting groups and X = F or Cl. We found that in accordance with the experimental finding, for these systems, the steric effect dominates the transition state barrier, contributing positively to barrier heights, but this contribution is largely compensated by the negative, stabilizing contribution from the quantum effect due to the exchange-correlation interactions. Moreover, we find that it is the component from the electrostatic effect that is linearly correlated with the S{sub N}2 barrier height for the systems investigated in the present study. In addition, we compared our approach with the conventional method of energy decomposition in density functional theory as well as examined the steric effect from the wave function theory for these systems via natural bond orbital analysis.

  2. Geometric Engineering, Mirror Symmetry and 6d (1,0) -> 4d, N=2

    E-Print Network [OSTI]

    Del Zotto, Michele; Xie, Dan

    2015-01-01T23:59:59.000Z

    We study compactification of 6 dimensional (1,0) theories on T^2. We use geometric engineering of these theories via F-theory and employ mirror symmetry technology to solve for the effective 4d N=2 geometry for a large number of the (1,0) theories including those associated with conformal matter. Using this we show that for a given 6d theory we can obtain many inequivalent 4d N=2 SCFTs. Some of these respect the global symmetries of the 6d theory while others exhibit SL(2,Z) duality symmetry inherited from global diffeomorphisms of the T^2. This construction also explains the 6d origin of moduli space of 4d affine ADE quiver theories as flat ADE connections on T^2. Among the resulting 4d N=2 CFTs we find theories whose vacuum geometry is captured by an LG theory (as opposed to a curve or a local CY geometry). We obtain arbitrary genus curves of class S with punctures from toroidal compactification of (1,0) SCFT's where the curve of the class S theory emerges through mirror symmetry. We also show that toroidal...

  3. Geometric Engineering, Mirror Symmetry and 6d (1,0) -> 4d, N=2

    E-Print Network [OSTI]

    Michele Del Zotto; Cumrun Vafa; Dan Xie

    2015-04-30T23:59:59.000Z

    We study compactification of 6 dimensional (1,0) theories on T^2. We use geometric engineering of these theories via F-theory and employ mirror symmetry technology to solve for the effective 4d N=2 geometry for a large number of the (1,0) theories including those associated with conformal matter. Using this we show that for a given 6d theory we can obtain many inequivalent 4d N=2 SCFTs. Some of these respect the global symmetries of the 6d theory while others exhibit SL(2,Z) duality symmetry inherited from global diffeomorphisms of the T^2. This construction also explains the 6d origin of moduli space of 4d affine ADE quiver theories as flat ADE connections on T^2. Among the resulting 4d N=2 CFTs we find theories whose vacuum geometry is captured by an LG theory (as opposed to a curve or a local CY geometry). We obtain arbitrary genus curves of class S with punctures from toroidal compactification of (1,0) SCFT's where the curve of the class S theory emerges through mirror symmetry. We also show that toroidal compactification of the little string version of these theories can lead to class S theories with no punctures on arbitrary genus Riemann surface.

  4. Geometric Engineering, Mirror Symmetry and 6d (1,0) -> 4d, N=2

    E-Print Network [OSTI]

    Michele Del Zotto; Cumrun Vafa; Dan Xie

    2015-05-31T23:59:59.000Z

    We study compactification of 6 dimensional (1,0) theories on T^2. We use geometric engineering of these theories via F-theory and employ mirror symmetry technology to solve for the effective 4d N=2 geometry for a large number of the (1,0) theories including those associated with conformal matter. Using this we show that for a given 6d theory we can obtain many inequivalent 4d N=2 SCFTs. Some of these respect the global symmetries of the 6d theory while others exhibit SL(2,Z) duality symmetry inherited from global diffeomorphisms of the T^2. This construction also explains the 6d origin of moduli space of 4d affine ADE quiver theories as flat ADE connections on T^2. Among the resulting 4d N=2 CFTs we find theories whose vacuum geometry is captured by an LG theory (as opposed to a curve or a local CY geometry). We obtain arbitrary genus curves of class S with punctures from toroidal compactification of (1,0) SCFTs where the curve of the class S theory emerges through mirror symmetry. We also show that toroidal compactification of the little string version of these theories can lead to class S theories with no punctures on arbitrary genus Riemann surface.

  5. Integrable N = 2 Landau-Ginzburg Theories from Quotients of Fusion Rings

    E-Print Network [OSTI]

    Eli J. Mlawer; Harold A. Riggs; Howard J. Schnitzer

    1993-10-14T23:59:59.000Z

    The discovery of integrable $N=2$ supersymmetric Landau-Ginzburg theories whose chiral rings are fusion rings suggests a close connection between fusion rings, the related Landau-Ginzburg superpotentials, and $N=2$ quantum integrability. We examine this connection by finding the natural $SO(N)_K$ analogue of the construction that produced the superpotentials with $Sp(N)_K$ and $SU(N)_K$ fusion rings as chiral rings. The chiral rings of the new superpotentials are not directly the fusion rings of any conformal field theory, although they are natural quotients of the tensor subring of the $SO(N)_K$ fusion ring. The new superpotentials yield solvable (twisted $N=2$) topological field theories. We obtain the integer-valued correlation functions as sums of $SO(N)_K$ Verlinde dimensions by expressing the correlators as fusion residues. The $SO(2n+1)_{2k+1}$ and $SO(2k+1)_{2n+1}$ related topological Landau-Ginzburg theories are isomorphic, despite being defined via quite different superpotentials.

  6. Indirect ultraviolet photodesorption from CO:N2 binary ices - an efficient grain-gas process

    E-Print Network [OSTI]

    Bertin, Mathieu; Romanzin, Claire; Poderoso, Hugo A M; Michaut, Xavier; Philippe, Laurent; Jeseck, Pascal; berg, Karin I; Linnartz, Harold; Fillion, Jean-Hugues

    2013-01-01T23:59:59.000Z

    UV ice photodesorption is an important non-thermal desorption pathway in many interstellar environments that has been invoked to explain observations of cold molecules in disks, clouds and cloud cores. Systematic laboratory studies of the photodesorption rates, between 7 and 14 eV, from CO:N2 binary ices, have been performed at the DESIRS vacuum UV beamline of the synchrotron facility SOLEIL. The photodesorption spectral analysis demonstrates that the photodesorption process is indirect, i.e. the desorption is induced by a photon absorption in sub-surface molecular layers, while only surface molecules are actually desorbing. The photodesorption spectra of CO and N2 in binary ices therefore depend on the absorption spectra of the dominant species in the subsurface ice layer, which implies that the photodesorption efficiency and energy dependence are dramatically different for mixed and layered ices compared to pure ices. In particular, a thin (1-2 ML) N2 ice layer on top of CO will effectively quench CO photod...

  7. Temperature variations in an SF6-N2 mixture arc plasma A. Gleizes, M. Razafinimanana and S. Vacqui

    E-Print Network [OSTI]

    Boyer, Edmond

    1411 Temperature variations in an SF6-N2 mixture arc plasma A. Gleizes, M. Razafinimanana and S brlant dans les mlanges SF6-N2, en fonction de l'intensit du courant. Suivant la proportion de SF6 dans courant suprieur 50 A, les valeurs de To dans un mlange contenant 20 % de SF6 sont infrieures

  8. V2O5 xerogel electrodes with much enhanced lithium-ion intercalation properties with N2 annealing

    E-Print Network [OSTI]

    Cao, Guozhong

    V2O5 xerogel electrodes with much enhanced lithium-ion intercalation properties with N2 annealing annealed V2O5 film. Lithium ion intercalation measurements showed that at a charge/discharge current density of 600 mAg1 , the N2 annealed sample possessed noticeably better lithium ion storage capability

  9. Nitrous Oxide Nitrous oxide (chemical formula N2O), is a trace gas in Earth's atmosphere, with a

    E-Print Network [OSTI]

    fuel, biomass and biofuel, and industrial processes. Nitrous oxide emissions related to biofuel, the Global Warming Potential (GWP) is a more useful quantity. The GWP of N2O is the time- integrated radiative forcing following a 1 kg pulse emission of N2O, relative to the same quantity following a 1 kg

  10. Low-Temperature Desorption of N2O from NO on Rutile TiO2(110...

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

    Desorption of N2O from NO on Rutile TiO2(110)-1x1. Low-Temperature Desorption of N2O from NO on Rutile TiO2(110)-1x1. Abstract: We find that NO dosed on rutile TiO2(110)-11...

  11. ORIGINAL PAPER Short-term effect of tillage intensity on N2O and CO2 emissions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ORIGINAL PAPER Short-term effect of tillage intensity on N2O and CO2 emissions Pascal Boeckx negative to positive. We studied the short-term effect of tillage intensity on N2O and CO2 emissions. We site, an intermediately aerated Luvisol in Belgium, were similar. Nitrous oxide and CO2 emissions were

  12. H-2(p,n)2p Spin Transfer from 305 to 788 Mev

    E-Print Network [OSTI]

    McNaughton, M. W.; Koch, K.; Supek, I.; Tanaka, N.; Ambrose, DA; Coffey, P.; Johnston, K.; McNaughton, K. H.; Riley, P. J.; Glass, G.; Hiebert, John C.; Northcliffe, L. C.; Simon, A. J.; Mercer, D. J.; Adams, D. L.; Spinka, H.; Jeppersen, R. H.; Tripard, G. E.; Woolverton, H.

    1992-01-01T23:59:59.000Z

    PHYSICAL REVIEW C VOLUME 45, NUMBER 6 JUNE 1992 ARTICLES 2H(y, n)2p spin transfer from $05 to 7'88 Mev M. W. McNaughton, K. Koch, ' I. Supek, and N. Tanakat Los Alamos National Laboratory, Ios Alarnos, ?wMexico 876/6 D. A. Ambrose, P. Coff..., Colorado 80808 D. L. Adams Rice University, Bou,ston, Texas 77252 H. Spinka Argonne National Laboratory, Argonne, Illinois 60/89 R. H. Jeppesen University of Montana, Missoula, Montana 69812 G. E. Tripard Washington State University, Pullman...

  13. The free energy of N=2 supersymmetric AdS_4 solutions of M-theory

    E-Print Network [OSTI]

    Maxime Gabella; Dario Martelli; Achilleas Passias; James Sparks

    2011-07-29T23:59:59.000Z

    We show that general N=2 supersymmetric AdS_4 solutions of M-theory with non-zero M2-brane charge admit a canonical contact structure. The free energy of the dual superconformal field theory on S^3 and the scaling dimensions of operators dual to supersymmetric wrapped M5-branes are expressed via AdS/CFT in terms of contact volumes. In particular, this leads to topological and localization formulae for the coefficient of N^{3/2} in the free energy of such solutions.

  14. Angular Momentum and Gravimagnetization of the ${\\cal N}=2$ SYM vacuum

    E-Print Network [OSTI]

    A. Gorsky

    2011-02-09T23:59:59.000Z

    In this note we discuss the gravimagnetization of the ${\\cal N}=2$ SYM vacuum in the $\\Omega$-background. It is argued that the Seiberg-Witten prepotential is related to the vacuum density of the angular momentum in the Euclidean $R^4$ space. The possible role of the dyonic instantons as the microscopic angular momentum carriers which could yield the spontaneous vacuum gravimagnetization is conjectured. We interpret the dyonic instanton as a kind of the Euclidean bounce in $R^4$ similar to one responsible for the Schwinger pair creation. The induced angular momentum in $R^4$ is also briefly considered in the dual Liouville formulation of $SU(2)$ theory via AGT relation.

  15. Quality assurance plan for the Molten Salt Reactor Experiment Remediation Project at the Oak Ridge National Laboratory. Phase 1 -- Interim corrective measures and Phase 2 -- Purge and trap reactive gases

    SciTech Connect (OSTI)

    NONE

    1995-11-01T23:59:59.000Z

    This Quality Assurance Plan (QAP) identifies and describes the systems utilized by the Molten Salt Reactor Experiment Remediation Project (MSRERP) personnel to implement the requirements and associated applicable guidance contained in the Quality Program Description Y/QD-15 Rev. 2 (Energy Systems 1995f). This QAP defines the quality assurance (QA) requirements applicable to all activities and operations in and directly pertinent to the MSRERP Phase 1--Interim Corrective Measures and Phase 2--Purge and Trap objectives. This QAP will be reviewed, revised, and approved as necessary for Phase 3 and Phase 4 activities. This QAP identifies and describes the QA activities and procedures implemented by the various Oak Ridge National Laboratory support organizations and personnel to provide confidence that these activities meet the requirements of this project. Specific support organization (Division) quality requirements, including the degree of implementation of each, are contained in the appendixes of this plan.

  16. Scattering amplitudes in N=2 Maxwell-Einstein and Yang-Mills/Einstein supergravity

    E-Print Network [OSTI]

    Marco Chiodaroli; Murat Gunaydin; Henrik Johansson; Radu Roiban

    2015-02-03T23:59:59.000Z

    We expose a double-copy structure in the scattering amplitudes of the generic Jordan family of N=2 Maxwell-Einstein and Yang-Mills/Einstein supergravity theories in four and five dimensions. The Maxwell-Einstein supergravity amplitudes are obtained through the color/kinematics duality as a product of two gauge-theory factors; one originating from pure N=2 super-Yang-Mills theory and the other from the dimensional reduction of a bosonic higher-dimensional pure Yang-Mills theory. We identify a specific symplectic frame in four dimensions for which the on-shell fields and amplitudes from the double-copy construction can be identified with the ones obtained from the supergravity Lagrangian and Feynman-rule computations. The Yang-Mills/Einstein supergravity theories are obtained by gauging a compact subgroup of the isometry group of their Maxwell-Einstein counterparts. For the generic Jordan family this process is identified with the introduction of cubic scalar couplings on the bosonic gauge-theory side, which through the double copy are responsible for the non-abelian vector interactions in the supergravity theory. As a demonstration of the power of this structure, we present explicit computations at tree-level and one loop. The double-copy construction allows us to obtain compact expressions for the supergravity superamplitudes which are naturally organized as polynomials in the gauge coupling constant.

  17. The N2K Consortium. IV. New temperatures and metallicities for 100,000+ FGK dwarfs

    E-Print Network [OSTI]

    S. Mark Ammons; Sarah E. Robinson; Jay Strader; Gregory Laughlin; Debra Fischer; Aaron Wolf

    2005-10-07T23:59:59.000Z

    We have created a framework to facilitate the construction of specialized target lists for radial velocity surveys that are biased toward stars that (1) possess planets and (2) are easiest to observe with current detection techniques. We use a procedure that uniformly estimates fundamental stellar properties of Tycho 2 stars, with errors, using spline functions of broadband photometry and proper motion found in Hipparcos/Tycho 2 and 2MASS. We provide estimates of temperature and distance for 2.4 million Tycho 2 stars that lack trigonometric distances. For stars that appear to be FGK dwarfs according to estimated temperature and absolute magnitude, we also derive [Fe/H] and identify unresolved binary systems with mass ratios between 1.25 and 3. Our spline function models are trained on the unique Valenti & Fischer (2005) set, composed of 1000 dwarfs with precise stellar parameters estimated from HIRES spectroscopy. For FGK dwarfs with V photometric error less than 0.05 magnitudes, or V 0.2). Our metallicity estimates have been used to identify targets for N2K (Fischer et al. 2005), a large-scale radial velocity search for Hot Jupiters, which has published the detection of 4 Hot Jupiters with one transit. The broadband filtering outlined here is the first screening tier for N2K; the second tier is a low-resolution spectroscopy program headed by S.E. Robinson (astro-ph/0510150).

  18. Receptor Specificity and Transmission of H2N2 Subtype Viruses Isolated from the Pandemic of 1957

    E-Print Network [OSTI]

    Pappas, Claudia

    Influenza viruses of the H2N2 subtype have not circulated among humans in over 40 years. The occasional isolation of avian H2 strains from swine and avian species coupled with waning population immunity to H2 hemagglutinin ...

  19. Thermal Stability of MOCVD and HVPE GaN Layers in H2, HCl, NH3 and N2

    E-Print Network [OSTI]

    Anderson, Timothy J.

    GaN, and the black is the sapphire substrate. At 900 C nearly 1/4 of the film has sublimated leavingThermal Stability of MOCVD and HVPE GaN Layers in H2, HCl, NH3 and N2 M. A. Mastro1 ) (a), O. M.60.Dv; 81.15.Gh; S7.14 This work represents a complete study of GaN annealed in H2, HCl, NH3 and N2

  20. Drag and jet quenching of heavy quarks in a strongly coupled N=2* plasma

    E-Print Network [OSTI]

    Carlos Hoyos-Badajoz

    2009-09-14T23:59:59.000Z

    The drag of a heavy quark and the jet quenching parameter are studied in the strongly coupled N=2* plasma using the AdS/CFT correspondence. Both increase in units of the spatial string tension as the theory departs from conformal invariance. The description of heavy quark dynamics using a Langevin equation is also considered. It is found that the difference between the velocity dependent factors of the transverse and longitudinal momentum broadening of the quark admit an interpretation in terms of relativistic effects, so the distribution is spherical in the quark rest frame. When conformal invariance is broken there is a broadening of the longitudinal momentum distribution. This effect may be useful in understanding the jet distribution observed in experiments.

  1. Real Clifford Algebra Cl{sub n,0}, n = 2, 3(mod 4) Wavelet Transform

    SciTech Connect (OSTI)

    Hitzer, Eckhard [Department of Applied Physics, University of Fukui, 910-8507 (Japan)

    2009-09-09T23:59:59.000Z

    We show how for n = 2, 3(mod 4) continuous Clifford (geometric) algebra (GA)Cl{sub n}-valued admissible wavelets can be constructed using the similitude group SIM(n). We strictly aim for real geometric interpretation, and replace the imaginary unit i is an element of C therefore with a GA blade squaring to -1. Consequences due to non-commutativity arise. We express the admissibility condition in terms of a Cl{sub n} Clifford Fourier Transform and then derive a set of important properties such as dilation, translation and rotation covariance, a reproducing kernel, and show how to invert the Clifford wavelet transform. As an example, we introduce Clifford Gabor wavelets. We further invent a generalized Clifford wavelet uncertainty principle.

  2. Data-based estimates of suboxia, denitrification, and N2O production in the ocean and their sensitivities to dissolved O2

    E-Print Network [OSTI]

    pathways, N2O is a powerful greenhouse gas that affects the Earth's energy balance and climate. The ocean

  3. Tillage and seasonal emissions of CO2, N2O and NO across a seed bed and at the field scale in a Mediterranean climate

    E-Print Network [OSTI]

    van Kessel, Chris

    Tillage and seasonal emissions of CO2, N2O and NO across a seed bed and at the field scale, N2O emissions from soil management activities accounted for 29.7% of the combined emissions of CO2 estimates across fields remain uncertain. Here, we quantified CO2, N2O, and NO emissions from an irrigated

  4. Structures and phase diagrams of N2 and CO to 13 GPa by x-ray diffraction

    SciTech Connect (OSTI)

    Mills, R.L.; Olinger, B.; Cromer, D.T.

    1986-03-01T23:59:59.000Z

    The structures and phase transitions of N2 and CO were studied by powder x-ray diffraction from 100 to 300 K and 4 to 13 GPa. Three solid phases, US , delta, and epsilon, were observed in each material. The known US and delta solids were confirmed to have hexagonal space group P63/mmc and cubic space group Pm3n, respectively. From refinements using photographic x-ray intensities, the new epsilon-N2 and epsilon-CO structures were determined to be rhombohedral R3c. There are eight ordered molecules in the epsilon-N2 unit cell with a = 5.928 A and = 85.14 at 110 K and 7.8 GPa, and eight ordered molecules in the epsilon-CO unit cell with a = 6.059 A and = 85.73 at 100 K and 5.5 GPa. The CO molecules are randomly oriented head to tail. The delta--epsilon transition takes place through an ordering and small displacement of the N2 and CO molecules, accompanied by a slight extension of the lattice along a cube diagonal. Molar volumes are presented over an expanded P-T region. Recent theoretical calculations using lattice energies, molecular dynamics, and symmetry correlations correctly predict features in the N2 and CO phase diagrams.

  5. High resolution n = 3 to n = 2 spectra of neon-like silver

    SciTech Connect (OSTI)

    Beiersdorfer, P.; Bitter, M.; von Goeler, S.; Cohen, S.; Hill, K.W.; Timberlake, J.; Walling, R.S.; Chen, M.H.; Hagelstein, P.L.; Scofield, J.H.

    1986-04-01T23:59:59.000Z

    Spectra of the n = 3 to n = 2 transitions in neon-like silver emitted from the Princeton Large Torus have been recorded with a high-resolution Bragg-crystal spectrometer. The measurements cover the wavelength region 3.3 to 4.1 A and include the forbidden 3p ..-->.. 2p electric quadrupole lines. Transitions in the adjacent sodium-like, and aluminum-like charge states of silver have also been observed and identified. The Ly-..cap alpha.. spectra of hydrogen-like argon and iron, the K..cap alpha.. spectra of helium-like argon, potassium, manganese, and iron, and the K..beta.. spectrum of helium-like argon fall in the same wavelength region in first or second order and have been measured concurrently. These spectra provide a coherent set of wavelength reference data obtained with the same spectrometer and from the same tokamak. This set is used as a basis to compare wavelength predictions for one- and two-electron systems to each other and to determine the transition energies of the silver lines with great accuracy.

  6. Unified N=2 Maxwell-Einstein and Yang-Mills-Einstein Supergravity Theories in Four Dimensions

    E-Print Network [OSTI]

    Gnaydin, M; Zagermann, M

    2005-01-01T23:59:59.000Z

    We study unified N=2 Maxwell-Einstein supergravity theories (MESGTs) and unified Yang-Mills Einstein supergravity theories (YMESGTs) in four dimensions. As their defining property, these theories admit the action of a global or local symmetry group that is (i) simple, and (ii) acts irreducibly on all the vector fields of the theory, including the ``graviphoton''. Restricting ourselves to the theories that originate from five dimensions via dimensional reduction, we find that the generic Jordan family of MESGTs with the scalar manifolds [SU(1,1)/U(1)] X [SO(2,n)/SO(2)X SO(n)] are all unified in four dimensions with the unifying global symmetry group SO(2,n). Of these theories only one can be gauged so as to obtain a unified YMESGT with the gauge group SO(2,1). Three of the four magical supergravity theories defined by simple Euclidean Jordan algebras of degree 3 are unified MESGTs in four dimensions. Two of these can furthermore be gauged so as to obtain 4D unified YMESGTs with gauge groups SO(3,2) and SO(6,2)...

  7. The influence of SF6 and SF6/N2 gas pressure to the breakdown performance of polyester film

    SciTech Connect (OSTI)

    Zhang Peihong; Gong Guoli; Dong Guangyu [Harbin Univ. of Science and Technology (China). Dept. of Electrical Material; Dong Zhenhua [Shenyang Research Inst. of Transformer (China)

    1996-12-31T23:59:59.000Z

    SF6 has been widely used as the gas insulating medium in gas insulated transformer, and polyester film used as the turn insulation and other insulating materials. In this paper, the insulation strength of turn insulation of SF6/N2-film is tested when the SF6 is replaced by SF6/N2 mixed gas, and also compared with that of SF6-film. The results show that the power frequency breakdown voltage and breakdown stress of SF6/N2-film is lower than that of SF6-film in the same pressure and the same film thickness, the mean value of the former is about 91% of the latter. In order to reach the same level of turn insulation strength in the operation range, the gas pressure must be increased by 0.05 Mpa.

  8. Benzene-derived N2-(4-hydroxyphenyl)-deoxyguanosine adduct: UvrABC incision and its conformation in DNA

    SciTech Connect (OSTI)

    Hang, Bo; Rodriguez, Ben; Yang, Yanu; Guliaev, Anton B.; Chenna, Ahmed

    2010-06-14T23:59:59.000Z

    Benzene, a ubiquitous human carcinogen, forms DNA adducts through its metabolites such as p-benzoquinone (p-BQ) and hydroquinone (HQ). N(2)-(4-Hydroxyphenyl)-2'-deoxyguanosine (N(2)-4-HOPh-dG) is the principal adduct identified in vivo by (32)P-postlabeling in cells or animals treated with p-BQ or HQ. To study its effect on repair specificity and replication fidelity, we recently synthesized defined oligonucleotides containing a site-specific adduct using phosphoramidite chemistry. We here report the repair of this adduct by Escherichia coli UvrABC complex, which performs the initial damage recognition and incision steps in the nucleotide excision repair (NER) pathway. We first showed that the p-BQ-treated plasmid was efficiently cleaved by the complex, indicating the formation of DNA lesions that are substrates for NER. Using a 40-mer substrate, we found that UvrABC incises the DNA strand containing N(2)-4-HOPh-dG in a dose- and time-dependent manner. The specificity of such repair was also compared with that of DNA glycosylases and damage-specific endonucleases of E. coli, both of which were found to have no detectable activity toward N(2)-4-HOPh-dG. To understand why this adduct is specifically recognized and processed by UvrABC, molecular modeling studies were performed. Analysis of molecular dynamics trajectories showed that stable G:C-like hydrogen bonding patterns of all three Watson-Crick hydrogen bonds are present within the N(2)-4-HOPh-G:C base pair, with the hydroxyphenyl ring at an almost planar position. In addition, N(2)-4-HOPh-dG has a tendency to form more stable stacking interactions than a normal G in B-type DNA. These conformational properties may be critical in differential recognition of this adduct by specific repair enzymes.

  9. Effect of sulfite ions in N{sub 2} and CO{sub 2} purged 0.5 m NaCl solution on stainless steels examined by different electrochemical techniques and by reflectance measurements

    SciTech Connect (OSTI)

    Hemmingsen, T.; Aagotnes, N.O.; Kroeger-Silseth, T.; Kolak, N.; Kaik, M. [Stavanger Coll. (Norway)

    1999-11-01T23:59:59.000Z

    Three steels, 13% Cr-steel, SS 304 steel and duplex steel are examined for corrosion for 48-hours periods in N{sub 2} or CO{sub 2} purged 0.5 M sodium chloride electrolytes with different sulfite concentrations. The results show that 13%Cr-steel is most susceptible to pitting in the presence of sulfite both under N{sub 2} and CO{sub 2} atmospheres. SS 304 steel was more resistant to corrosion than 13%Cr-steel. Duplex steel showed rather good corrosion resistance under these conditions. The corrosion rate, inclusive pitting corrosion, after 24 hours in presence of 0--10 mM sulfite based on LPR-measurements is for duplex steel 0.5--0.9 mm/year under N{sub 2} and 0.1--1.8 mm/year under CO{sub 2}, for SS 304 steel 1.0--1.8 mm/year under N{sub 2} and 0.6--1.4 mm/year under CO{sub 2}, and for 13%Cr-steel 1.3--2.2 mm/year under N{sub 2} and 0.7--1.8 mm/year under CO{sub 2}. The use of AC-impedance measurements is discussed. The method should be used with care when other mechanisms than general corrosion are involved.

  10. Vibrational Spectroscopy of Mass Selected [UO2(ligand)n]2+ Complexes in the Gas Phase

    SciTech Connect (OSTI)

    Gary S. Groenewold; Anita Gianotto; Michael Vanstipdonk; Kevin C. Cossel; David T. Moore,; Nick Polfer; Jos Oomens

    2006-03-01T23:59:59.000Z

    The gas-phase infrared spectra of discrete uranyl ([UO2]2+) complexes ligated with acetone and/or acetonitrile were used to evaluate systematic trends of ligation on the position of the O=U=O stretch, and to enable rigorous comparison with the results of computational studies. Ionic uranyl complexes isolated in a Fourier transform ion cyclotron resonance mass spectrometer were fragmented via infrared multiphoton dissociation using a free electron laser scanned over the mid-IR wavelengths. The asymmetric O=U=O stretching frequency was measured at 1017 cm-1 for [UO2(CH3COCH3)2]2+, and was systematically red shifted to 1000 and 988 cm-1 by the addition of a third and fourth acetone ligands, respectively, which was consistent with more donation of electron density to the uranium center in complexes with higher coordination number. The experimental measurements were in good agreement with values generated computationally using LDA, B3LYP, and ZORA-PW91 approaches. In contrast to the uranyl frequency shifts, the carbonyl frequencies of the acetone ligands were progressively blue shifted as the number of ligands increased from 2 to 4, and approached that of free acetone. This observation was consistent with the formation of weaker noncovalent bonds between uranium and the carbonyl oxygen as the extent of ligation increases. Similar trends were observed for [UO2(CH3CN)n]2+ complexes although the magnitude of the red shift in the uranyl frequency upon addition more acetonitrile ligands was smaller than for acetone, consistent with the more modest nucleophilic nature of acetonitrile. This conclusion was amplified by the uranyl stretching frequencies measured for mixed acetone/acetonitrile complexes, which showed that substitution of one acetone for one acetonitrile produced a modest red shift of 3 to 6 cm-1.

  11. Unified N=2 Maxwell-Einstein and Yang-Mills-Einstein Supergravity Theories in Four Dimensions

    E-Print Network [OSTI]

    M. Gunaydin; S. McReynolds; M. Zagermann

    2005-07-22T23:59:59.000Z

    We study unified N=2 Maxwell-Einstein supergravity theories (MESGTs) and unified Yang-Mills Einstein supergravity theories (YMESGTs) in four dimensions. As their defining property, these theories admit the action of a global or local symmetry group that is (i) simple, and (ii) acts irreducibly on all the vector fields of the theory, including the ``graviphoton''. Restricting ourselves to the theories that originate from five dimensions via dimensional reduction, we find that the generic Jordan family of MESGTs with the scalar manifolds [SU(1,1)/U(1)] X [SO(2,n)/SO(2)X SO(n)] are all unified in four dimensions with the unifying global symmetry group SO(2,n). Of these theories only one can be gauged so as to obtain a unified YMESGT with the gauge group SO(2,1). Three of the four magical supergravity theories defined by simple Euclidean Jordan algebras of degree 3 are unified MESGTs in four dimensions. Two of these can furthermore be gauged so as to obtain 4D unified YMESGTs with gauge groups SO(3,2) and SO(6,2), respectively. The generic non-Jordan family and the theories whose scalar manifolds are homogeneous but not symmetric do not lead to unified MESGTs in four dimensions. The three infinite families of unified five-dimensional MESGTs defined by simple Lorentzian Jordan algebras, whose scalar manifolds are non-homogeneous, do not lead directly to unified MESGTs in four dimensions under dimensional reduction. However, since their manifolds are non-homogeneous we are not able to completely rule out the existence of symplectic sections in which these theories become unified in four dimensions.

  12. Mesure de la densit lectronique et carts l'quilibre de composition dans les arcs de SF6-N2

    E-Print Network [OSTI]

    Boyer, Edmond

    1325 Mesure de la densit lectronique et carts l'quilibre de composition dans les arcs de SF6 mesure dans des arcs stabiliss brlant dans des mlanges SF6-N2, par des techniques de spectroscopie d lectronique en fonction du pourcentage de SF6 dans le mlange et en fonction de l'intensit du courant sont en

  13. Qualitative analysis of Zircaloy-4 cladding air degradation in O2-N2 mixtures at high temperature

    E-Print Network [OSTI]

    Boyer, Edmond

    . Thermogravimetry, optical microscopy, scanning electron microscopy and energy dispersive X-ray spectrometry1 Qualitative analysis of Zircaloy-4 cladding air degradation in O2-N2 mixtures at high temperature Email: M. Lasserre (marina.lasserre@irsn.fr) Keywords: Zircaloy-4; thermogravimetry; high temperature

  14. Probing the Vibrational Relaxation of N2 and O2 by Use of CARS Spectroscopy to Model NTE-Turbulence

    E-Print Network [OSTI]

    Dean, Jacob

    2009-06-09T23:59:59.000Z

    -thermochemical equilibrium (NTE) exists downstream of strong shock fronts and encountered in the shear layers from hypersonic flight, and coupled with turbulence, it has significant effects on flow dynamics. NTE, characterized by high vibrational temperatures of N2 and O2...

  15. Jeffrey R. Row Environment and Resource Studies, University of Waterloo, Waterloo, Ontario, Canada, N2L 3G1

    E-Print Network [OSTI]

    Row, Jeffrey R.

    , N2L 3G1 Website: http://jeffrow.ca · Email: jeff.row@me.com · Phone: 1-416-399-3066 1 Education 2006 and population structure of foxsnakes across spatial and temporal scales. 2003-2005 M.Sc. Biology, University (Lampropeltis triangulum). 1997-2001 B.Sc. Environmental Biology, Queen's University, Kingston, Ontario. 2

  16. HNO3, N2O5, and ClONO2 enhancements after the OctoberNovember 2003 solar proton

    E-Print Network [OSTI]

    Jackman, Charles H.

    HNO3, N2O5, and ClONO2 enhancements after the OctoberNovember 2003 solar proton events M. Lo-energy protons which reached the Earth and penetrated into the middle atmosphere in the polar regions solar proton events. Two distinct HNO3 enhancements were observed. An instantaneous increase of 12 ppbv

  17. Gas Hydrate Equilibria for CO2-N2 and CO2-CH4 gas mixtures Experimental studies and Thermodynamic Modelling

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Gas Hydrate Equilibria for CO2-N2 and CO2-CH4 gas mixtures Experimental studies and Thermodynamic of experimental data on the phase equilibrium of gas hydrates in the presence of binary gas mixtures comprising CO of the gas phase as well as the hydrate phase without the need to sample the hydrate. The experimental

  18. Boltzmann Equation Analysis of Electron Transport in a N2O2 Streamer Discharge Sasa Dujko1;2;3

    E-Print Network [OSTI]

    Ebert, Ute

    , P. O. Box 68, Zemun, Belgrade 11080, Serbia 3 ARC Centre for AntimatterMatter Studies, School-equilibrium electrons in the leading part of the ionization front are treated by a Monte Carlo simulation while the low-energy and attachment in mixtures of molecular N2 and O2. Values and general trends in the profiles of the mean energy

  19. Determination of the cross sections of (n,2n), (n,gamma) nuclear reactions on germanium isotopes at the energy of neutrons 13.96 MeV

    E-Print Network [OSTI]

    S. V. Begun; O. G. Druzheruchenko; O. O. Pupirina; V. K. Tarakanov

    2007-01-23T23:59:59.000Z

    The cross sections of 70Ge(n,2n)69Ge, 72Ge(n,2n)71Ge, 76Ge(n,gamma)77(g+0.21m)Ge, 76Ge(n,2n)75Ge nuclear reactions were measured at the energy of neutrons 13.96(6) MeV by activation method with gamma-ray and X-ray spectra studies.

  20. N = 2 superconformal algebra in NSR string and Gepner approach to space-time supersymmetry in ten dimensions

    E-Print Network [OSTI]

    Belavin, Alexander

    2015-01-01T23:59:59.000Z

    The fermionic NSR string possesses a hidden N = 2 superconformal algebra on the world-sheet. In this work, we show how to use an isomorphism of this algebra, the so-called spectral flow, for construction of a subspace of physical states of the string, on which space-time supersymmetry acts. This construction is an alternative to the GSO-projection in string theory.

  1. Diagnosing ions and neutrals via n=2 excited hydrogen atoms in plasmas with high electron density and low electron temperature

    SciTech Connect (OSTI)

    Shumack, A. E.; Schram, D. C.; Biesheuvel, J.; Goedheer, W. J.; Rooij, G. J. van [FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, Trilateral Euregio Cluster, Nieuwegein (Netherlands)

    2011-03-15T23:59:59.000Z

    Ion and neutral parameters are determined in the high electron density, magnetized, hydrogen plasma beam of an ITER divertor relevant plasma via measurements of the n=2 excited neutrals. Ion rotation velocity (up to 7 km/s) and temperature (2-3 eV{approx}T{sub e}) are obtained from analysis of H{alpha} spectra measured close to the plasma source. The methodology for neutral density determination is explained whereby measurements in the linear plasma beam of Pilot-PSI are compared to modeling. Ground-state atomic densities are obtained via the production rate of n=2 and the optical thickness of the Lyman-{alpha} transition (escape factor {approx}0.6) and yield an ionization degree >85% and dissociation degree in the residual gas of {approx}4%. A 30% proportion of molecules with a rovibrational excitation of more than 2 eV is deduced from the production rate of n=2 atoms. This proportion increases by more than a factor of 4 for a doubling of the electron density in the transition to ITER divertor relevant electron densities, probably because of a large increase in the production and confinement of ground-state neutrals. Measurements are made using laser-induced fluorescence (LIF) and absorption, the suitability of which are evaluated as diagnostics for this plasma regime. Absorption is found to have a much better sensitivity than LIF, mainly owing to competition with background emission.

  2. Innovative Concepts Phase I: Inorganic Membranes for CO2/N2 Separation

    SciTech Connect (OSTI)

    William Desisto

    2003-09-23T23:59:59.000Z

    Silica membranes were prepared using a novel technique of catalyzed-atomic layer deposition of silica within a mesoporous matrix. Pyridine was used to catalyze the silicon chloride attachment to the hydroxylated silica surface at room temperature. This half-reaction was followed by the hydration of the surface with water regenerating surface hydroxyls and completing one reaction cycle. The technique resulted in the self-limited pore size reduction of the mesoporous matrix to pore sizes near 1 nm. The self-limited reaction was presumed to be the exclusion of the large catalyst molecule from the pore entrance. In addition to pore size reduction, viscous flow defects were repaired without significantly reducing overall porosity of the membrane. In addition, we investigated the ability of amine-functionalization to enhance the CO{sub 2} transport in silica membranes. Specifically, we examined three synthesis techniques for functionalizing silica membranes with amino groups that resulted in different surface chemistries of the silica membranes. These differences were correlated with changes in the CO{sub 2} facilitation characteristics. It was found that high loadings of amino groups where interaction with the silica surface was minimized promoted the highest CO{sub 2} transport.

  3. A $\\mathcal{N}=2$ Supersymmetric $AdS_4$ Solution in M-theory with Purely Magnetic Flux

    E-Print Network [OSTI]

    Yolanda Lozano; Niall T. Macpherson; Jess Montero

    2015-07-10T23:59:59.000Z

    We find a new $\\mathcal{N}=2$ $AdS_4$ solution in M-theory supported by purely magnetic flux via a sequence of abelian and non-abelian T-dualities. This provides the second known example in this class besides the uplift of the Pernici and Sezgin solution to 7d gauged supergravity constructed in the eighties. We compute the free energy of the solution, and show that it scales as $N^{3/2}$. It is intriguing that even though the natural holographic interpretation is in terms of M5-branes wrapped on a special Lagrangian 3-cycle, this solution does not exhibit the expected $N^3$ behavior.

  4. PET exam A 424304 20-032013 Short answers 111. Ex = Ex (O2) + Ex(N2) + Ex (unmix)

    E-Print Network [OSTI]

    Zevenhoven, Ron

    (303/293)+8,314*293*ln(5) = 2288,6 W Similar Ex (N2) = 3709,8 W, and Ex (unmix) = 3478,1 W Total = 9475,6 W, p effect = 63,2 %, T effect = 0,1 %, unmix effect = 36,7 %. 112. a. Electricity out = 2400 MW. Exlosses = Tgen = 293gen = 163,8 75 = 88,8 MW gen = 303,1 kW/K d. Efficiency = 75 MW/163,8 MW = 45

  5. Accretions of Dark Matter and Dark Energy onto ($n+2$)-dimensional Schwarzschild Black Hole and Morris-Thorne Wormhole

    E-Print Network [OSTI]

    Ujjal Debnath

    2015-03-06T23:59:59.000Z

    We have studied accretion of the dark matter and dark energy onto of $(n+2)$-dimensional Schwarzschild black hole and Morris-Thorne wormhole. The mass and the rate of change of mass for $(n+2)$-dimensional Schwarzschild black hole and Morris-Thorne wormhole have been found. We have assumed some candidates of dark energy like holographic dark energy, new agegraphic dark energy, quintessence, tachyon, DBI-essence, etc. The black hole mass and the wormhole mass have been calculated in term of redshift when dark matter and above types of dark energies accrete onto them separately. We have shown that the black hole mass increases and wormhole mass decreases for holographic dark energy, new agegraphic dark energy, quintessence, tachyon accretion and the slope of increasing/decreasing of mass sensitively depends on the dimension. But for DBI-essence accretion, the black hole mass first increases and then decreases and the wormhole mass first decreases and then increases and the slope of increasing/decreasing of mass not sensitively depends on the dimension.

  6. Accretions of Dark Matter and Dark Energy onto ($n+2$)-dimensional Schwarzschild Black Hole and Morris-Thorne Wormhole

    E-Print Network [OSTI]

    Debnath, Ujjal

    2015-01-01T23:59:59.000Z

    We have studied accretion of the dark matter and dark energy onto of $(n+2)$-dimensional Schwarzschild black hole and Morris-Thorne wormhole. The mass and the rate of change of mass for $(n+2)$-dimensional Schwarzschild black hole and Morris-Thorne wormhole have been found. We have assumed some candidates of dark energy like holographic dark energy, new agegraphic dark energy, quintessence, tachyon, DBI-essence, etc. The black hole mass and the wormhole mass have been calculated in term of redshift when dark matter and above types of dark energies accrete onto them separately. We have shown that the black hole mass increases and wormhole mass decreases for holographic dark energy, new agegraphic dark energy, quintessence, tachyon accretion and the slope of increasing/decreasing of mass sensitively depends on the dimension. But for DBI-essence accretion, the black hole mass first increases and then decreases and the wormhole mass first decreases and then increases and the slope of increasing/decreasing of mass...

  7. Accretions of Dark Matter and Dark Energy onto ($n+2$)-dimensional Schwarzschild Black Hole and Morris-Thorne Wormhole

    E-Print Network [OSTI]

    Ujjal Debnath

    2015-02-08T23:59:59.000Z

    We have studied accretion of the dark matter and dark energy onto of $(n+2)$-dimensional Schwarzschild black hole and Morris-Thorne wormhole. The mass and the rate of change of mass for $(n+2)$-dimensional Schwarzschild black hole and Morris-Thorne wormhole have been found. We have assumed some candidates of dark energy like holographic dark energy, new agegraphic dark energy, quintessence, tachyon, DBI-essence, etc. The black hole mass and the wormhole mass have been calculated in term of redshift when dark matter and above types of dark energies accrete onto them separately. We have shown that the black hole mass increases and wormhole mass decreases for holographic dark energy, new agegraphic dark energy, quintessence, tachyon accretion and the slope of increasing/decreasing of mass sensitively depends on the dimension. But for DBI-essence accretion, the black hole mass first increases and then decreases and the wormhole mass first decreases and then increases and the slope of increasing/decreasing of mass not sensitively depends on the dimension.

  8. The R-map and the Coupling of N=2 Tensor Multiplets in 5 and 4 Dimensions

    E-Print Network [OSTI]

    M. Gunaydin; S. McReynolds; M. Zagermann

    2005-11-02T23:59:59.000Z

    We study the dimensional reduction of five dimensional N=2 Yang-Mills-Einstein supergravity theories (YMESGT) coupled to tensor multiplets. The resulting 4D theories involve first order interactions among tensor and vector fields with mass terms. If the 5D gauge group, K, does not mix the 5D tensor and vector fields, the 4D tensor fields can be integrated out in favor of 4D vector fields and the resulting theory is dual to a standard 4D YMESGT. The gauge group has a block diagonal symplectic embedding and is a semi-direct product of the 5D gauge group K with a Heisenberg group of dimension (2P+1), where 2P is the number of tensor fields in five dimensions. There exists an infinite family of theories, thus obtained, whose gauge groups are pp-wave contractions of the simple noncompact groups of type SO*(2M). If, on the other hand, the 5D gauge group does mix the 5D tensor and vector fields, the resulting 4D theory is dual to a 4D YMESGT whose gauge group does, in general,NOT have a block diagonal symplectic embedding and involves additional topological terms. The scalar potentials of the dimensionally reduced theories naturally have some of the ingredients that were found necessary for stable de Sitter ground states. We comment on the relation between the known 5D and 4D, N=2 supergravities with stable de Sitter ground states.

  9. Characteristic Evolution and Matching

    E-Print Network [OSTI]

    Jeffrey Winicour

    2005-12-08T23:59:59.000Z

    I review the development of numerical evolution codes for general relativity based upon the characteristic initial value problem. Progress is traced from the early stage of 1D feasibility studies to 2D axisymmetric codes that accurately simulate the oscillations and gravitational collapse of relativistic stars and to current 3D codes that provide pieces of a binary black spacetime. A prime application of characteristic evolution is to compute waveforms via Cauchy-characteristic matching, which is also reviewed.

  10. Preliminary Expected Performance Characteristics

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

    capabilities. To facilitate discussion of the scientific impact and design optimization of such a lattice, this document describes the expected performance characteristics...

  11. Characteristic Evolution and Matching

    E-Print Network [OSTI]

    Jeffrey Winicour

    2012-01-12T23:59:59.000Z

    I review the development of numerical evolution codes for general relativity based upon the characteristic initial value problem. Progress in characteristic evolution is traced from the early stage of 1D feasibility studies to 2D axisymmetric codes that accurately simulate the oscillations and gravitational collapse of relativistic stars and to current 3D codes that provide pieces of a binary black hole spacetime. Cauchy codes have now been successful at simulating all aspects of the binary black hole problem inside an artificially constructed outer boundary. A prime application of characteristic evolution is to extend such simulations to null infinity where the waveform from the binary inspiral and merger can be unambiguously computed. This has now been accomplished by Cauchy-characteristic extraction, where data for the characteristic evolution is supplied by Cauchy data on an extraction worldtube inside the artificial outer boundary. The ultimate application of characteristic evolution is to eliminate the role of this outer boundary by constructing a global solution via Cauchy-characteristic matching. Progress in this direction is discussed.

  12. European Journal of Soil Science, December 2010, 61, 903913 doi: 10.1111/j.1365-2389.2009.01217.x Towards an agronomic assessment of N2O emissions

    E-Print Network [OSTI]

    van Kessel, Chris

    Towards an agronomic assessment of N2O emissions: a case study for arable crops J . W . V a n G r o e n i. Commonly, N2O emissions are expressed as a function of N application rate. This suggests that smaller fertilizer applications always lead to smaller N2O emissions. Here we argue that, because of global demand

  13. HTP in Positive Characteristic HTP in Positive Characteristic

    E-Print Network [OSTI]

    Shlapentokh, Alexandra

    HTP in Positive Characteristic HTP in Positive Characteristic Alexandra Shlapentokh East Carolina University April 2012 #12;HTP in Positive Characteristic Prologue Outline 1 Prologue 2 Fields of Positive Function Fields of Positive Characteristic 7 p-th Powers #12;HTP in Positive Characteristic Prologue

  14. Housing characteristics 1993

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    This report, Housing Characteristics 1993, presents statistics about the energy-related characteristics of US households. These data were collected in the 1993 Residential Energy Consumption Survey (RECS) -- the ninth in a series of nationwide energy consumption surveys conducted since 1978 by the Energy Information Administration of the US Department of Energy. Over 7 thousand households were surveyed, representing 97 million households nationwide. A second report, to be released in late 1995, will present statistics on residential energy consumption and expenditures.

  15. Twisted compactification of N=2 5D SCFTs to three and two dimensions from F(4) gauged supergravity

    E-Print Network [OSTI]

    Karndumri, Parinya

    2015-01-01T23:59:59.000Z

    We study supersymmetric $AdS_4\\times \\Sigma_2$ and $AdS_3\\times \\Sigma_3$ solutions in half-maximal gauged supergravity in six dimensions with $SU(2)_R\\times SU(2)$ gauge group. The gauged supergravity is obtained by coupling three vector multiplets to the pure $F(4)$ gauged supergravity. The $SU(2)_R$ R-symmetry together with the $SO(3)\\sim SU(2)$ symmetry of the vector multiplets are gauged. The resulting gauged supergravity admits supersymmetric $AdS_6$ critical points with $SO(4)\\sim SU(2)\\times SU(2)$ and $SO(3)\\sim SU(2)_{\\textrm{diag}}$ symmetries. The former corresponds to five-dimensional $N=2$ superconformal field theories (SCFTs) with $E_1\\sim SU(2)$ symmetry. We find new classes of supersymmetric $AdS_4\\times \\Sigma_2$ and $AdS_3\\times \\Sigma_3$ solutions with $\\Sigma_{2,3}$ being $S^{2,3}$ and $H^{2,3}$. These solutions describe SCFTs in three and two dimensions obtained from twisted compactifications of the aforementioned five-dimensional SCFTs with different numbers of unbroken supersymmetry an...

  16. The R-map and the Coupling of N=2 Tensor Multiplets in 5 and 4 Dimensions

    E-Print Network [OSTI]

    Gnaydin, M; Zagermann, M

    2006-01-01T23:59:59.000Z

    We study the dimensional reduction of five dimensional N=2 Yang-Mills-Einstein supergravity theories (YMESGT) coupled to tensor multiplets. The resulting 4D theories involve first order interactions among tensor and vector fields with mass terms. If the 5D gauge group, K, does not mix the 5D tensor and vector fields, the 4D tensor fields can be integrated out in favor of 4D vector fields and the resulting theory is dual to a standard 4D YMESGT. The gauge group has a block diagonal symplectic embedding and is a semi-direct product of the 5D gauge group K with a Heisenberg group of dimension (2P+1), where 2P is the number of tensor fields in five dimensions. There exists an infinite family of theories, thus obtained, whose gauge groups are pp-wave contractions of the simple noncompact groups of type SO*(2M). If, on the other hand, the 5D gauge group does mix the 5D tensor and vector fields, the resulting 4D theory is dual to a 4D YMESGT whose gauge group does, in general,NOT have a block diagonal symplectic emb...

  17. Commercial Buildings Characteristics, 1992

    SciTech Connect (OSTI)

    Not Available

    1994-04-29T23:59:59.000Z

    Commercial Buildings Characteristics 1992 presents statistics about the number, type, and size of commercial buildings in the United States as well as their energy-related characteristics. These data are collected in the Commercial Buildings Energy Consumption Survey (CBECS), a national survey of buildings in the commercial sector. The 1992 CBECS is the fifth in a series conducted since 1979 by the Energy Information Administration. Approximately 6,600 commercial buildings were surveyed, representing the characteristics and energy consumption of 4.8 million commercial buildings and 67.9 billion square feet of commercial floorspace nationwide. Overall, the amount of commercial floorspace in the United States increased an average of 2.4 percent annually between 1989 and 1992, while the number of commercial buildings increased an average of 2.0 percent annually.

  18. Vibrational Spectroscopy of Mass-Selected [UO2(ligand)n]2+ Complexes in the Gas Phase: Comparison with Theory

    SciTech Connect (OSTI)

    Gary S. Groenewold; Anita K. Gianotto

    2006-03-01T23:59:59.000Z

    The gas-phase infrared spectra of discrete uranyl ([UO2]2+) complexes ligated with acetone and/or acetonitrile were used to evaluate systematic trends of ligation on the position of the OdUdO stretch and to enable rigorous comparison with the results of computational studies. Ionic uranyl complexes isolated in a Fourier transform ion cyclotron resonance mass spectrometer were fragmented via infrared multiphoton dissociation using a free electron laser scanned over the mid-IR wavelengths. The asymmetric OdUdO stretching frequency was measured at 1017 cm-1 for [UO2(CH3COCH3)2]2+ and was systematically red shifted to 1000 and 988 cm-1 by the addition of a third and fourth acetone ligand, respectively, which was consistent with increased donation of electron density to the uranium center in complexes with higher coordination number. The values generated computationally using LDA, B3LYP, and ZORA-PW91 were in good agreement with experimental measurements. In contrast to the uranyl frequency shifts, the carbonyl frequencies of the acetone ligands were progressively blue shifted as the number of ligands increased from two to four and approached that of free acetone. This observation was consistent with the formation of weaker noncovalent bonds between uranium and the carbonyl oxygen as the extent of ligation increases. Similar trends were observed for [UO2(CH3CN)n]2+ complexes, although the uranyl asymmetric stretching frequencies were greater than those measured for acetone complexes having equivalent coordination, which is consistent with the fact that acetonitrile is a weaker nucleophile than is acetone. This conclusion was confirmed by the uranyl stretching frequencies measured for mixed acetone/acetonitrile complexes, which showed that substitution of one acetone for one acetonitrile produced a modest red shift of 3-6 cm-1.

  19. Concrete Pavement Surface Characteristics

    E-Print Network [OSTI]

    , Broom, Belt, Carpet) Shot Peened Exposed Aggregate Porous (Pervious) Concrete Milled HMA and SurfaceImproving Concrete Pavement Surface Characteristics Pooled Fund TPF-5(139) National Concrete do with this knowledge? #12;Better Design and Construction Practices for Texturing Concrete Pavement

  20. Off-shell Invariant D=N=2 Twisted Super Yang-Mills Theory with a Gauged Central Charge without Constraints

    E-Print Network [OSTI]

    Asaka, Keisuke; Kawamoto, Noboru; Miyake, Akiko

    2013-01-01T23:59:59.000Z

    We formulate N=2 twisted super Yang-Mills theory with a gauged central charge by superconnection formalism in two dimensions. We obtain off-shell invariant supermultiplets and actions with and without constraints, which is in contrast with the off-shell invariant D=N=4 super Yang-Mills formulation with unavoidable constraints.

  1. Off-shell Invariant D=N=2 Twisted Super Yang-Mills Theory with a Gauged Central Charge without Constraints

    E-Print Network [OSTI]

    Keisuke Asaka; Junji Kato; Noboru Kawamoto; Akiko Miyake

    2013-09-18T23:59:59.000Z

    We formulate N=2 twisted super Yang-Mills theory with a gauged central charge by superconnection formalism in two dimensions. We obtain off-shell invariant supermultiplets and actions with and without constraints, which is in contrast with the off-shell invariant D=N=4 super Yang-Mills formulation with unavoidable constraints.

  2. Optical Nonlinearity in Ar and N2 near the Ionization Threshold J. K. Wahlstrand, Y.-H. Cheng, Y.-H. Chen, and H. M. Milchberg

    E-Print Network [OSTI]

    Milchberg, Howard

    Optical Nonlinearity in Ar and N2 near the Ionization Threshold J. K. Wahlstrand, Y.-H. Cheng, Y measure the nonlinear optical response in argon and nitrogen in a thin gas target to laser intensities.103901 PACS numbers: 42.65.An, 42.65.Jx, 42.65.Re The optical Kerr effect, the intensity-dependent refrac

  3. A Tungsten(VI) Nitride Having a W2(-N)2 Core Zachary J. Tonzetich, Richard R. Schrock,* Keith M. Wampler, Brad C. Bailey,

    E-Print Network [OSTI]

    Mller, Peter

    A Tungsten(VI) Nitride Having a W2(-N)2 Core Zachary J. Tonzetich, Richard R. Schrock,* Keith M-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 Received September 27, 2007 The tungsten that the tungsten alkylidyne species W(C-t-Bu)(CH2-t-Bu)(OAr)2 (Ar ) 2,6-diisopropylphenyl) can be prepared readily

  4. King Air flight RICO 2004/12/13 page 1 King Air N2UW flight report for December 13, 2004

    E-Print Network [OSTI]

    Vali, Gabor

    repair of the air conditioner on the aircraft, a test flight was needed and was to be transformedKing Air flight RICO 2004/12/13 page 1 King Air N2UW flight report for December 13, 2004 Crew: Drew, Vali, Oolman, Glover After

  5. Self-averaging characteristics of spectral fluctuations

    E-Print Network [OSTI]

    Petr Braun; Fritz Haake

    2014-10-20T23:59:59.000Z

    The spectral form factor as well as the two-point correlator of the density of (quasi-)energy levels of individual quantum dynamics are not self-averaging. Only suitable smoothing turns them into useful characteristics of spectra. We present numerical data for a fully chaotic kicked top, employing two types of smoothing: one involves primitives of the spectral correlator, the second a small imaginary part of the quasi-energy. Self-averaging universal (like the CUE average) behavior is found for the smoothed correlator, apart from noise which shrinks like $1\\over\\sqrt N$ as the dimension $N$ of the quantum Hilbert space grows. There are periodically repeated quasi-energy windows of correlation decay and revival wherein the smoothed correlation remains finite as $N\\to\\infty$ such that the noise is negligible. In between those windows (where the CUE averaged correlator takes on values of the order ${1\\over N^2}$) the noise becomes dominant and self-averaging is lost. We conclude that the noise forbids distinction of CUE and GUE type behavior. Surprisingly, the underlying smoothed generating function does not enjoy any self-averaging outside the range of its variables relevant for determining the two-point correlator (and certain higher-order ones). --- We corroborate our numerical findings for the noise by analytically determining the CUE variance of the smoothed single-matrix correlator.

  6. Characterist Passenger Demand

    E-Print Network [OSTI]

    Minnesota, University of

    LaCrescent CityofMorris LincolnCounty RiverRiderPublicTransitSystem ClayCounty Semcac WatonwanCounty Tri-CountyActionProgram,Inc RedLakeBandofChippewaIndians HubbardCounty BeckerCountyTransit Tri-ValleyOpportunityCouncil,Inc. Mille1 #12;2 #12;3 #12;4 #12;5 #12;6 #12;7 #12;8 #12;9 #12;10 County Population Characterist ics Future

  7. Characteristics of discharge disruptions in the T-10 tokamak

    SciTech Connect (OSTI)

    Stefanovskii, A. M., E-mail: stefan@nfi.kiae.ru; Dremin, M. M.; Kakurin, A. M.; Kislov, A. Ya.; Mal'tsev, S. G.; Notkin, G. E.; Pavlov, Yu. D.; Poznyak, V. I.; Sushkov, A. V. [National Research Centre Kurchatov Institute (Russian Federation)

    2013-06-15T23:59:59.000Z

    The results of experimental studies of discharge disruptions in the T-10 tokamak at the limiting plasma density are presented. On the basis of measurements of the generated soft X-ray emission, for a group of 'slow' disruptions, the dynamics of the magnetic configuration of the central part of the plasma column is studied and the possible role of the m/n = 1/1 mode in the excitation of predisruptions or the final stage of disruption is analyzed. It is shown that the characteristics of plasma electron cooling in predisruptions correspond to those of electron cooling upon pellet injection into T-10 and in discharge predisruptions occurring in regimes with the 'quiet mode.' It is found that, in the latter case, the reason for predisruptions and fast electron cooling in the plasma core is the instability of the m/n = 2/1 mode, its spontaneous spatial reconstruction, and the generation of a 'cooling wave' during this process. Measurements of the electron temperature (determined from the plasma radiation intensity at the second electron cyclotron harmonic) in the zone of the m/n = 2/1 mode have shown that the transformation of the m/n = 2/1 mode leads to the excitation of predisruptions and the final phase of disruption not only in regimes with the 'quiet mode,' but also in disruptions of ordinary ohmic discharges. The experimental results obtained in this work make it possible to determine the scenario of the development of 'slow' discharge disruptions in the T-10 tokamak at the limiting plasma density.

  8. HTP in Positive Characteristic HTP in Positive Characteristic

    E-Print Network [OSTI]

    Shlapentokh, Alexandra

    HTP in Positive Characteristic HTP in Positive Characteristic Alexandra Shlapentokh East Carolina University October 2007 #12;HTP in Positive Characteristic Table of Contents 1 A Brief History of Diophantine Diophantine Sets, Definitions and Models HTP over a Field vs. HTP over a Subring 3 A Brief History of HTP over

  9. HTP in Positive Characteristic HTP in Positive Characteristic

    E-Print Network [OSTI]

    Shlapentokh, Alexandra

    HTP in Positive Characteristic HTP in Positive Characteristic Alexandra Shlapentokh East Carolina University November 2007 #12;HTP in Positive Characteristic Table of Contents 1 A Brief History are Done Diophantine Sets, Definitions and Models HTP over a Field vs. HTP over a Subring 3 A Brief History

  10. 15N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOx/CeO2

    SciTech Connect (OSTI)

    Kwak, Ja Hun; Szanyi, Janos

    2014-12-23T23:59:59.000Z

    Pulsing 15N18O onto an annealed 1% Mn16Ox/Ce16O2 catalyst resulted in very fast oxygen isotope exchange and 15N2 formation at 295 K. In the 1st 15N18O pulse, due to the presence of large number of surface oxygen defects, extensive 15N218O and 15N2 formations were observed. In subsequent pulses oxygen isotope exchange dominated as a result of highly labile oxygen in the oxide. We gratefully acknowledge the US Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy/Vehicle Technologies Program for the support of this work. The research described in this paper was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOEs Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). PNNL is operated for the US DOE by Battelle.

  11. Multielectron effects in high harmonic generation in N_2 and benzene: simulation using a non-adiabatic quantum molecular dynamics approach for laser-molecule interactions

    E-Print Network [OSTI]

    Dundas, Daniel

    2012-01-01T23:59:59.000Z

    A mixed quantum-classical approach is introduced which allows the dynamically response of molecules driven far from equilibrium to be modeled. This method is applied here to the interaction of molecules with intense, short-duration laser pulses. The electronic response of the molecule is described using time-dependent density functional theory (TDDFT) and the resulting Kohn-Sham equations are solved numerically using finite difference techniques in conjunction with local and global adaptations of an underlying grid in curvilinear coordinates. Using this approach, simulations can be carried out for a wide range of molecules and both all-electron and pseudopotential calculations can be performed. The approach is applied to the study of high harmonic generation in N_2 and benzene using linearly-polarized laser pulses and to the best of our knowledge, the results for benzene represent the first TDDFT calculations of high harmonic generation in benzene using linearly polarized laser pulses. For N_2 an enhancement ...

  12. 207Pb(n,2n{gamma})206Pb Cross-Section Measurements by In-Beam Gamma-Ray Spectroscopy

    SciTech Connect (OSTI)

    Baumann, P.; Kerveno, M.; Rudolf, G. [IReS, IN2P3, Strasbourg (France); Borcea, C. [EC, JRC, IRMM, Geel (Belgium); NIPNE, Bucarest (Romania); Jericha, E. [Technische Universitaet Wien, Wien (Austria); Jokic, S. [INN Vinca, Belgrade (Serbia and Montenegro); Lukic, S. [IReS, IN2P3, Strasbourg (France); INN Vinca, Belgrade (Serbia and Montenegro); Mihailescu, L. C.; Plompen, A. J. M. [EC, JRC, IRMM, Geel (Belgium); Pavlik, A. [Universitaet Wien, Vienna (Austria)

    2006-03-13T23:59:59.000Z

    207Pb(n,2n{gamma})206Pb cross section were measured for incident neutron energies between 6 and 20 MeV with the white neutron beam produced at GELINA. The {gamma}-ray production cross section for the main transition (803 keV, 2+{yields} 0+) in 206Pb is compared to results obtained at Los Alamos and to the TALYS and EMPIRE-II code predictions.

  13. Powerplant Technology Problem 3-2: Fuel oils generally are a mix of components such as CnH2n+2 (see Table 4-4

    E-Print Network [OSTI]

    Table 4-4 on page 147); to convert from a mass-analysis to moles-per-pound-of-fuel, we need to introduce.499N2 (a.) The total of 0.666 lbmole of gas produced by this combustion of one lbm of fuel, includes condensation if the temperature dropped to or below 135.6o F. (b.) The amount of sulfurous acid produced from

  14. Wafer characteristics via reflectometry

    DOE Patents [OSTI]

    Sopori, Bhushan L. (Denver, CO)

    2010-10-19T23:59:59.000Z

    Various exemplary methods (800, 900, 1000, 1100) are directed to determining wafer thickness and/or wafer surface characteristics. An exemplary method (900) includes measuring reflectance of a wafer and comparing the measured reflectance to a calculated reflectance or a reflectance stored in a database. Another exemplary method (800) includes positioning a wafer on a reflecting support to extend a reflectance range. An exemplary device (200) has an input (210), analysis modules (222-228) and optionally a database (230). Various exemplary reflectometer chambers (1300, 1400) include radiation sources positioned at a first altitudinal angle (1308, 1408) and at a second altitudinal angle (1312, 1412). An exemplary method includes selecting radiation sources positioned at various altitudinal angles. An exemplary element (1650, 1850) includes a first aperture (1654, 1854) and a second aperture (1658, 1858) that can transmit reflected radiation to a fiber and an imager, respectfully.

  15. Sensor Characteristics Reference Guide

    SciTech Connect (OSTI)

    Cree, Johnathan V.; Dansu, A.; Fuhr, P.; Lanzisera, Steven M.; McIntyre, T.; Muehleisen, Ralph T.; Starke, M.; Banerjee, Pranab; Kuruganti, T.; Castello, C.

    2013-04-01T23:59:59.000Z

    The Buildings Technologies Office (BTO), within the U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE), is initiating a new program in Sensor and Controls. The vision of this program is: Buildings operating automatically and continuously at peak energy efficiency over their lifetimes and interoperating effectively with the electric power grid. Buildings that are self-configuring, self-commissioning, self-learning, self-diagnosing, self-healing, and self-transacting to enable continuous peak performance. Lower overall building operating costs and higher asset valuation. The overarching goal is to capture 30% energy savings by enhanced management of energy consuming assets and systems through development of cost-effective sensors and controls. One step in achieving this vision is the publication of this Sensor Characteristics Reference Guide. The purpose of the guide is to inform building owners and operators of the current status, capabilities, and limitations of sensor technologies. It is hoped that this guide will aid in the design and procurement process and result in successful implementation of building sensor and control systems. DOE will also use this guide to identify research priorities, develop future specifications for potential market adoption, and provide market clarity through unbiased information

  16. WRF-Chem model predictions of the regional impacts of N2O5 heterogeneous processes on night-time chemistry over north-western Europe

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

    Lowe, Douglas; Archer-Nicholls, Scott; Morgan, Will; Allan, James D.; Utembe, Steve; Ouyang, Bin; Aruffo, Eleonora; Le Breton, Michael; Zaveri, Rahul A.; di Carlo, Piero; et al

    2015-01-01T23:59:59.000Z

    Chemical modelling studies have been conducted over north-western Europe in summer conditions, showing that night-time dinitrogen pentoxide (N2O5) heterogeneous reactive uptake is important regionally in modulating particulate nitrate and has a~modest influence on oxidative chemistry. Results from Weather Research and Forecasting model with Chemistry (WRF-Chem) model simulations, run with a detailed volatile organic compound (VOC) gas-phase chemistry scheme and the Model for Simulating Aerosol Interactions and Chemistry (MOSAIC) sectional aerosol scheme, were compared with a series of airborne gas and particulate measurements made over the UK in July 2010. Modelled mixing ratios of key gas-phase species were reasonably accurate (correlationsmorewith measurements of 0.70.9 for NO2 and O3). However modelled loadings of particulate species were less accurate (correlation with measurements for particulate sulfate and ammonium were between 0.0 and 0.6). Sulfate mass loadings were particularly low (modelled means of 0.50.7 ?g kg?1air, compared with measurements of 1.01.5 ?g kg?1air). Two flights from the campaign were used as test cases one with low relative humidity (RH) (6070%), the other with high RH (8090%). N2O5 heterogeneous chemistry was found to not be important in the low-RH test case; but in the high-RH test case it had a strong effect and significantly improved the agreement between modelled and measured NO3 and N2O5. When the model failed to capture atmospheric RH correctly, the modelled NO3 and N2O5 mixing ratios for these flights differed significantly from the measurements. This demonstrates that, for regional modelling which involves heterogeneous processes, it is essential to capture the ambient temperature and water vapour profiles. The night-time NO3 oxidation of VOCs across the whole region was found to be 100300 times slower than the daytime OH oxidation of these compounds. The difference in contribution was less for alkenes ( 80) and comparable for dimethylsulfide (DMS). However the suppression of NO3 mixing ratios across the domain by N2O5 heterogeneous chemistry has only a very slight, negative, influence on this oxidative capacity. The influence on regional particulate nitrate mass loadings is stronger. Night-time N2O5 heterogeneous chemistry maintains the production of particulate nitrate within polluted regions: when this process is taken into consideration, the daytime peak (for the 95th percentile) of PM10 nitrate mass loadings remains around 5.6 ?g kg?1air, but the night-time minimum increases from 3.5 to 4.6 ?g kg?1air. The sustaining of higher particulate mass loadings through the night by this process improves model skill at matching measured aerosol nitrate diurnal cycles and will negatively impact on regional air quality, requiring this process to be included in regional models.less

  17. UBC Centre for Blood Research: Fermentation Suite Brom A5 (F4) PDF.xls: FermentationProfile Air O2 rpm N2 Base Acid

    E-Print Network [OSTI]

    Strynadka, Natalie

    UBC Centre for Blood Research: Fermentation Suite Brom A5 (F4) PDF.xls: FermentationProfile Air O2 rpm N2 Base Acid NH4OH Acetic Acid 8.6 16.0 Configuration 1 SP 4 - - - SP - 2 SP 3 0.000 Temp (oC) dO2 Fermentation (Hrs) pH rpm Temp Do OD CK (mg/50-L) MeOH (ml) dO2 (%)Temp (C) 40 20 60 80 0 100 6 8 4 2 0 10 28

  18. A Planned Neck Dissection Is Not Necessary in All Patients With N2-3 Head-and-Neck Cancer After Sequential Chemoradiotherapy

    SciTech Connect (OSTI)

    Soltys, Scott G., E-mail: sgsoltys@stanford.edu [Department of Radiation Oncology, Stanford University Medical Center, Stanford, CA (United States); Choi, Clara Y.H. [Department of Neurosugery, Stanford University Medical Center, Stanford, CA (United States); Fee, Willard E. [Department of Otolaryngology, Stanford University Medical Center, Stanford, CA (United States); Pinto, Harlan A. [Department of Medical Oncology, Stanford University Medical Center, Stanford, CA (United States); Veterans Affairs, Palo Alto Health Care System, Palo Alto, CA (United States); Le, Quynh-Thu [Department of Radiation Oncology, Stanford University Medical Center, Stanford, CA (United States)

    2012-07-01T23:59:59.000Z

    Purpose: To assess the role of a planned neck dissection (PND) after sequential chemoradiotherapy for patients with head-and-neck cancer with N2-N3 nodal disease. Methods and Materials: We reviewed 90 patients with N2-N3 head-and-neck squamous cell carcinoma treated between 1991 and 2001 on two sequential chemoradiotherapy protocols. All patients received induction and concurrent chemotherapy with cisplatin and 5-fluorocuracil, with or without tirapazamine. Patients with less than a clinical complete response (cCR) in the neck proceeded to a PND after chemoradiation. The primary endpoint was nodal response. Clinical outcomes and patterns of failure were analyzed. Results: The median follow-up durations for living and all patients were 8.3 years (range, 1.5-16.3 year) and 5.4 years (range, 0.6-16.3 years), respectively. Of the 48 patients with nodal cCR whose necks were observed, 5 patients had neck failures as a component of their recurrence [neck and primary (n = 2); neck, primary, and distant (n = 1); neck only (n = 1); neck and distant (n = 1)]. Therefore, PND may have benefited only 2 patients (4%) [neck only failure (n = 1); neck and distant failure (n = 1)]. The pathologic complete response (pCR) rate for those with a clinical partial response (cPR) undergoing PND (n = 30) was 53%. The 5-year neck control rates after cCR, cPR{yields}pCR, and cPR{yields}pPR were 90%, 93%, and 78%, respectively (p = 0.36). The 5-year disease-free survival rates for the cCR, cPR{yields}pCR, and cPR{yields}pPR groups were 53%, 75%, and 42%, respectively (p = 0.04). Conclusion: In our series, patients with N2-N3 neck disease achieving a cCR in the neck, PND would have benefited only 4% and, therefore, is not recommended. Patients with a cPR should be treated with PND. Residual tumor in the PND specimens was associated with poor outcomes; therefore, aggressive therapy is recommended. Studies using novel imaging modalities are needed to better assess treatment response.

  19. Characteristics Data Base

    SciTech Connect (OSTI)

    Lewis, E.D.; Moore, R.S. (Automated Sciences Group, Inc., Oak Ridge, TN (USA))

    1990-08-01T23:59:59.000Z

    The LWR Serial Numbers Database System (SNDB) contains detailed data about individual, historically discharged LWR spent fuel assemblies. This data includes the reactor where used, the year the assemblies were discharged, the pool where they are currently stored, assembly type, burnup, weight, enrichment, and an estimate of their radiological properties. This information is distributed on floppy disks to users in the nuclear industry to assist in planning for the permanent nuclear waste repository. This document describes the design and development of the SNDB. It provides a complete description of the file structures and an outline of the major code modules. It serves as a reference for a programmer maintaining the system, or for others interested in the technical detail of this database. This is the initial version of the SNDB. It contains historical data through December 31, 1987, obtained from the Energy Information Administration (EIA). EIA obtains the data from the utility companies via the RW-859 Survey Form. It evaluates and standardizes the data and distributes the resulting batch level database as a large file on magnetic tape. The Characteristics Data Base obtains this database for use in the LWR Quantities Data Base. Additionally, the CDB obtains the individual assembly level detail from EIA for use in the SNDB. While the Quantities Data Base retains only the level of detail necessary for its reporting, the SNDB does retain and use the batch level data to assist in the identification of a particular assembly serial number. We expect to update the SNDB on an annual basis, as new historical data becomes available.

  20. Laser photolysis, infrared fluorescence determination of CH3(nu3) vibrational deactivation by He, Ar, N2, CO, SF6, and (CH3)2CO

    SciTech Connect (OSTI)

    Donaldson, D.J.; Leone, S.R.

    1987-06-04T23:59:59.000Z

    Room temperature vibrational deactivation rate constants are reported for methyl radicals with antisymmetric stretch excitation, CH3(nu3) + M CH3 + M, where M = He, Ar, N2, CO, SF6, (CH3)2CO. Excimer laser photolysis of acetone at 193 nm is used to populate CH3(nu3), and time-resolved infrared emission from the CH stretch is used to follow the deactivation kinetics. The rate constants obtained are (+/-2sigma) (2.6 +/- 0.5) x 10 T (He, (6.8 +/- 0.7) x 10 T (Ar), (6.1 +/- 0.6) x 10 T (N2), (3.6 +/- 0.7) x 10 T (CO), (6.9 +/- 0.7) x 10 T (SF6), and (8.1 +/- 0.9) x 10 S (CH3COCH3) in units of cmT molecule s . The deactivation probability is not controlled by long-range forces due to the lone electron on the radical, but rather by the probabilities for intramode vibrational energy flow in CH3.

  1. A Taxonomy of Usability Characteristics

    E-Print Network [OSTI]

    Gabbard, Joseph L.

    A Taxonomy of Usability Characteristics in Virtual Environments Deliverable to Office of Naval This document can be found at http://csgrad.cs.vt.edu/jgabbard/ve/taxonomy/ #12;#12;A Taxonomy of Usability accomplished, yielding a comprehensive multi-dimensional taxonomy of usability characteristics specifically

  2. components of the droplet stream in the first regime before,during, and after the impact. The energy audit shows thatthe change in trandiameter dropllo theleiee smpo ohat modes (i.e. n [ 2) decay quickly, leaving the dominant

    E-Print Network [OSTI]

    Jones, Thomas B.

    . The energy audit shows thatthe change in trandiameter dropllo theleiee smpo ohat #12;#12;modes (i.e. n [ 2) at the University of Rochester also contributed financially. A. Tucker-Schwartz of UCLA suggested use of the HDFT

  3. Heat capacity of Cu 2 (C 5 H 12 N 2 ) 2 Cl 4 in a magnetic eld Masayuki Hagiwara a;1 , Hiroko Aruga Katori a , Uli Schollwock b , Hans-Jurgen Mikeska c

    E-Print Network [OSTI]

    Kersting, Roland

    structure in a gapless spin liquid system. Keywords: heat capacity; spin-ladder; Cu 2 (C5H12N2 ) 2 Cl4Heat capacity of Cu 2 (C 5 H 12 N 2 ) 2 Cl 4 in a magnetic #12;eld Masayuki Hagiwara a;1 , Hiroko, D- 30167 Hannover, Germany Abstract Heat capacity measurements down to 0.5 K in a magnetic #12;eld

  4. Anode-cathode voltage drop of a rotating arc in an auto-expansion circuit-breaker filled with SF6-N2 mixtures

    SciTech Connect (OSTI)

    Beauvois, V.; Legros, W.; Scarpa, P. [Inst. Montefiore, Liege (Belgium)] [and others

    1995-12-31T23:59:59.000Z

    In auto-expansion circuit-breakers, the power dissipated by the arc itself heats the surrounding gas, inducing a pressure build up in the {open_quotes}upstream volume{close_quotes} and giving rise to a gas flow which blows the extinguishing arc. Moreover, in the studied apparatus, a magnetic field, due to the current flowing in a coil, provides arc radial stability and leads to arc rotation which efficiently reduces electrode erosion. In such a circuit-breaker, it is obvious that arc-gas and arc-electrode interactions are essential and govern. the energy balance in the plasma region. This paper deals more specifically with the phenomena occurring at the arc-electrode interfaces. It relates results of experiments carried out to determine the anode-cathode voltage drop when the apparatus is filled with different SF6-N2 mixtures.

  5. Neutron scattering evidence for isolated spin-1/2 ladders in (C5D12N)2CuBr4

    SciTech Connect (OSTI)

    Savici, Andrei T [ORNL; Granroth, Garrett E [ORNL; Broholm, Collin L [ORNL; Pajerowski, Daniel M. [University of Florida, Gainesville; Brown, Craig [National Institute of Standards and Technology (NIST); Talham, Daniel R. [University of Florida, Gainesville; Meisel, Mark W. [University of Florida, Gainesville; Schmidt, K. P. [Technische Universit Dortmund, Germany; Uhrig, G. S. [Technische Universit Dortmund, Germany; Nagler, Stephen E [ORNL

    2009-01-01T23:59:59.000Z

    Inelastic neutron scattering was used to determine the spin Hamiltonian for the singlet ground state system (C5D12N)2CuBr4 (BPCB). A 2-leg spin 1/2 ladder model, with J? = 1:084 0:005 meV and Jk = 0:321 0:008 meV, accurately describes the data. The experimental limit on the inter-ladder exchange constant is jJ0j 0.005 meV, and the limit on diagonal, intra-ladder exchange is jJF j 0.1 meV. The experimental ratios of intra-ladder bond energies are consistent with the predictions of continuous unitary transformations calculations.

  6. Faddeev-Senjanovic Quantization of SU(n) N=2 Supersymmetric Gauge Field System with Non-Abelian Chern-Simons Topological Term and Its Fractional Spin

    E-Print Network [OSTI]

    Yong-Chang Huang; Qiu-Hong Huo

    2009-01-13T23:59:59.000Z

    Using Faddeev-Senjanovic path integral quantization for constrained Hamilton system, we quantize SU(n) N=2 supersymmetric gauge field system with non-abelian Chern-Simons topological term in 2+1 dimensions, and use consistency of a gauge condition naturally to deduce another gauge condition. Further, we get the generating functional of Green function in phase space, deduce the angular momentum based on the global canonical Noether theorem at quantum level, obtain the fractional spin of this supersymmetric system, and show that the total angular momentum has the orbital angular momentum and spin angular momentum of the non-abelian gauge field. Finally, we find out the anomalous fractional spin and discover that the fractional spin has the contributions of both the group superscript components and the A_0^s (x) charge.

  7. Health-Compromising Behaviors characteristics

    E-Print Network [OSTI]

    Meagher, Mary

    , cognitive impairments, 15% of health care costs = Etoh abuse treatment, underestimate of health costsHealth-Compromising Behaviors characteristics substance abuse and dependence ­ opponent process theory ­ incentive salience ­ frontal executive effects alcohol abuse and dependence smoking #12

  8. Transpiring purging access probe for particulate laden or hazardous environments

    DOE Patents [OSTI]

    VanOsdol, John G

    2013-12-03T23:59:59.000Z

    An access probe for remote-sensing access through a viewing port, viewing volume, and access port into a vessel. The physical boundary around the viewing volume is partially formed by a porous sleeve lying between the viewing volume and a fluid conduit. In a first mode of operation, a fluid supplied to the fluid conduit encounters the porous sleeve and flows through the porous material to maintain the viewing volume free of ash or other matter. When additional fluid force is needed to clear the viewing volume, the pressure of the fluid flow is increased sufficiently to slidably translate the porous sleeve, greatly increasing the flow into the viewing volume. The porous sleeve is returned to position by an actuating spring. The access probe thereby provides for alternate modes of operation based on the pressure of an actuating fluid.

  9. JGI data loss in /projectb/sandbox area [purge]

    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 SchoolIn12 Investigation PeerNOON 2004 February 12, 2004JGI data loss

  10. Temporal Nodal Regression and Regional Control After Primary Radiation Therapy for N2-N3 Head-and-Neck Cancer Stratified by HPV Status

    SciTech Connect (OSTI)

    Huang, Shao Hui; O'Sullivan, Brian [Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario (Canada); Xu, Wei; Zhao, Helen [Department of Biostatistics, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario (Canada); Chen, Duo-duo [Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario (Canada); Ringash, Jolie; Hope, Andrew [Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario (Canada); Razak, Albiruni [Division of Medical Oncology, Princess Margaret Cancer Centre, Toronto, Ontario (Canada); Gilbert, Ralph; Irish, Jonathan [Department of Otolaryngology-Head and Neck Surgery/Surgical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario (Canada); Kim, John; Dawson, Laura A.; Bayley, Andrew; Cho, B.C. John [Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario (Canada); Goldstein, David; Gullane, Patrick [Department of Otolaryngology-Head and Neck Surgery/Surgical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario (Canada); Yu, Eugene [Department of Radiology, Princess Margaret Cancer Centre, Toronto, Ontario (Canada); Perez-Ordonez, Bayardo; Weinreb, Ilan [Department of Pathology, Princess Margaret Cancer Centre, Toronto, Ontario (Canada); Waldron, John, E-mail: John.Waldron@rmp.uhn.on.ca [Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario (Canada)

    2013-12-01T23:59:59.000Z

    Purpose: To compare the temporal lymph node (LN) regression and regional control (RC) after primary chemoradiation therapy/radiation therapy in human papillomavirus-related [HPV(+)] versus human papillomavirus-unrelated [HPV(?)] head-and-neck cancer (HNC). Methods and Materials: All cases of N2-N3 HNC treated with radiation therapy/chemoradiation therapy between 2003 and 2009 were reviewed. Human papillomavirus status was ascertained by p16 staining on all available oropharyngeal cancers. Larynx/hypopharynx cancers were considered HPV(?). Initial radiologic complete nodal response (CR) (?1.0 cm 8-12 weeks after treatment), ultimate LN resolution, and RC were compared between HPV(+) and HPV(?) HNC. Multivariate analysis identified outcome predictors. Results: A total of 257 HPV(+) and 236 HPV(?) HNCs were identified. The initial LN size was larger (mean, 2.9 cm vs 2.5 cm; P<.01) with a higher proportion of cystic LNs (38% vs 6%, P<.01) in HPV(+) versus HPV(?) HNC. CR was achieved is 125 HPV(+) HNCs (49%) and 129 HPV(?) HNCs (55%) (P=.18). The mean post treatment largest LN was 36% of the original size in the HPV(+) group and 41% in the HPV(?) group (P<.01). The actuarial LN resolution was similar in the HPV(+) and HPV(?) groups at 12 weeks (42% and 43%, respectively), but it was higher in the HPV(+) group than in the HPV(?) group at 36 weeks (90% vs 77%, P<.01). The median follow-up period was 3.6 years. The 3-year RC rate was higher in the HPV(?) CR cases versus non-CR cases (92% vs 63%, P<.01) but was not different in the HPV(+) CR cases versus non-CR cases (98% vs 92%, P=.14). On multivariate analysis, HPV(+) status predicted ultimate LN resolution (odds ratio, 1.4 [95% confidence interval, 1.1-1.7]; P<.01) and RC (hazard ratio, 0.3 [95% confidence interval 0.2-0.6]; P<.01). Conclusions: HPV(+) LNs involute more quickly than HPV(?) LNs but undergo a more prolonged process to eventual CR beyond the time of initial assessment at 8 to 12 weeks after treatment. Post radiation neck dissection is advisable for all non-CR HPV(?)/non-CR N3 HPV(+) cases, but it may be avoided for selected non-CR N2 HPV(+) cases with a significant LN involution if they can undergo continued imaging surveillance. The role of positron emission tomography for response assessment should be investigated.

  11. Radiation Characteristics of Glass Containing Gas Bubbles

    E-Print Network [OSTI]

    Pilon, Laurent; Viskanta, Raymond

    2003-01-01T23:59:59.000Z

    B. L. Drolen, Thermal radiation in particulate media withRadiation Characteristics of Glass Containing Gas Bubblesthermophysical properties and radiation characteristics of

  12. Quantum mechanical study of solvent effects in a prototype S{sub N}2 reaction in solution: Cl{sup ?} attack on CH{sub 3}Cl

    SciTech Connect (OSTI)

    Kuechler, Erich R. [BioMaPS Institute and Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854-8087 (United States) [BioMaPS Institute and Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854-8087 (United States); Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431 (United States); York, Darrin M., E-mail: york@biomaps.rutgers.edu [BioMaPS Institute and Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854-8087 (United States)

    2014-02-07T23:59:59.000Z

    The nucleophilic attack of a chloride ion on methyl chloride is an important prototype S{sub N}2 reaction in organic chemistry that is known to be sensitive to the effects of the surrounding solvent. Herein, we develop a highly accurate Specific Reaction Parameter (SRP) model based on the Austin Model 1 Hamiltonian for chlorine to study the effects of solvation into an aqueous environment on the reaction mechanism. To accomplish this task, we apply high-level quantum mechanical calculations to study the reaction in the gas phase and combined quantum mechanical/molecular mechanical simulations with TIP3P and TIP4P-ew water models and the resulting free energy profiles are compared with those determined from simulations using other fast semi-empirical quantum models. Both gas phase and solution results with the SRP model agree very well with experiment and provide insight into the specific role of solvent on the reaction coordinate. Overall, the newly parameterized SRP Hamiltonian is able to reproduce both the gas phase and solution phase barriers, suggesting it is an accurate and robust model for simulations in the aqueous phase at greatly reduced computational cost relative to comparably accurate ab initio and density functional models.

  13. Relativistic distorted-wave collision strengths for the 49 ?n=0 optically allowed transitions with n=2 in the 67 B-like ions with 26?Z?92

    SciTech Connect (OSTI)

    Fontes, Christopher J., E-mail: cjf@lanl.gov; Zhang, Hong Lin

    2014-05-15T23:59:59.000Z

    Relativistic distorted-wave collision strengths have been calculated for the 49 ?n=0 optically allowed transitions with n=2 in the 67 B-like ions with nuclear charge number Z in the range 26?Z?92. The calculations were made for the four final, or scattered, electron energies E{sup ?}=0.20, 0.42, 0.80, and 1.40, where E{sup ?} is in units of Z{sub eff}{sup 2} Ry with Z{sub eff}=Z?3.33. In the present calculations, an improved top-up method, which employs relativistic plane waves, was used to obtain the high partial-wave contribution for each transition, in contrast to the partial-relativistic CoulombBethe approximation used in previous work by Zhang and Sampson [H.L. Zhang and D.H. Sampson, At. Data Nucl. Data Tables 56 (1994) 41]. In that earlier work, collision strengths were also provided for B-like ions, but for a more comprehensive data set consisting of all 105 ?n=0 transitions, six scattered energies and the 85 ions with Z in the range 8?Z?92. The collision strengths covered in the present work should be more accurate than the corresponding data given by Zhang and Sampson [H.L. Zhang and D.H. Sampson, At. Data Nucl. Data Tables 56 (1994) 41] and are presented here to replace those earlier results.

  14. RESIDENTIAL VENTILATION AND ENERGY CHARACTERISTICS*

    E-Print Network [OSTI]

    RESIDENTIAL VENTILATION AND ENERGY CHARACTERISTICS* Max Sherman Nance Matson Energy Performance Berkeley, California The role of ventilation in the housing stock is to provide fresh air and to dilute to provide this ventilation service, either directly for moving the air or indirectly for conditioning

  15. F O R E S T R E S E A R C H C O R P O R A T E P L A N 2 0 0 2 2 0 0 5

    E-Print Network [OSTI]

    F O R E S T R E S E A R C H #12;C O R P O R A T E P L A N 2 0 0 2 2 0 0 5 F O R E S T R E S E A R C H Forest Research C O R P O R A T E P L A N 2 0 0 2 2 0 0 5 1 #12;C O R P O R A T E P L A N 2 0 0 2 2 0 0 5 F O R E S T R E S E A R C H Acting Chief Executive Peter Freer-Smith Forest Research

  16. Effect of N2 /Ar gas flow ratio on the deposition of TiN/Ti coatings on NiTi shape memory alloy by PIIID

    E-Print Network [OSTI]

    Zheng, Yufeng

    and deposition technique. The effect of nitrogen to argon gas flow ratio on the surface characteristics, chemical in standard uncoated titanium implants [7]. To date, NiTi alloy has found numerous clinical applica- tions. The nitrogen to argon ratio was changed in order to obtain the stoichiometric TiN coating. The surface

  17. Stress corrosion cracking: New experiments, new insights M I T E N E R G Y I N I T I AT I V E A U T U M N 2 0 1 2

    E-Print Network [OSTI]

    Yildiz, Bilge

    % post-consumer recycled content, with the balance coming from responsibly managed sources. Energy. Economic pressures both in the United States and in other key economies around the world threaten T U M N 2 0 1 2 I N T H I S I S S U E Energy Futures Discovering solutions: Undergrads take the lead

  18. JOURNAL DE PHYSIQUE CoZZoque C7, suppl6ment au n07, Tome 40, JuiZZet 1979, page C7-483 LASERfFIBER OPTIC BREAKDOWNOF A PUS CHARGED 90% AT-1096 N2GAS SWITCH

    E-Print Network [OSTI]

    Boyer, Edmond

    . The influence of laser power, gas mixture, focal point location, pressure, time of laser insertion etcFIBER OPTIC BREAKDOWNOF A PUS CHARGED 90% AT-1096 N2GAS SWITCH L.L. Hatfield, H.C. ~arjes',M. ~ristiansen', A initiation of the breakdown in a sions of the technique. pulse charged gas switch i s described. A novel

  19. The concrete theory of numbers : New Mersenne conjectures. Simplicity and other wonderful properties of numbers $L(n) = 2^{2n}\\pm2^n\\pm1$

    E-Print Network [OSTI]

    Boris V. Tarasov

    2008-04-24T23:59:59.000Z

    New Mersenne conjectures. The problems of simplicity, common prime divisors and free from squares of numbers $L(n) = 2^{2n}\\pm2^n\\pm1$ are investigated. Wonderful formulas $gcd $ for numbers $L (n) $ and numbers repunit are proved.

  20. Effect of temperature on the protonation of N-(2-hydroxyethyl) ethylenediamine-N,N'N'-triacetic acid in aqueous solutions: Potentiometric and calorimetric studies

    SciTech Connect (OSTI)

    Xingliang Li; Zhicheng Zhang; Francesco Endrizzi; Leigh Martin; Shunzhong Luo; Linfeng Rao

    2015-01-01T23:59:59.000Z

    The TALSPEAK process (Trivalent Actinide Lanthanide Separations by Phosphorus-reagent Extraction from Aqueous Komplexes) has been demonstrated in several pilot-scale operations to be effective at separating trivalent actinides (An3+) from trivalent lanthanides (Ln3+). However, fundamental studies have revealed undesired aspects of TALSPEAK, such as the signi?cant partitioning of Na+, lactic acid, and water into the organic phase, thermodynamically unpredictable pH dependence, and the slow extraction kinetics. In the modi?ed TALSPEAK process, the combination of the aqueous holdback complexant HEDTA (N-(2-hydroxyethyl)ethylenediamine-N,N0,N0-triacetic acid) with the extractant HEH[EHP] (2-ethyl(hexyl) phosphonic acid mono-2-ethylhexyl ester) in the organic phase has been found to exhibit a nearly ?at pH dependence between 2.5 and 4.5 and more rapid phase transfer kinetics for the heavier lanthanides. To help understand the speciation of Ln3+ and An3+ in the modi?ed TALSPEAK, systematic studies are underway on the thermodynamics of major reactions in the HEDTA system under conditions relevant to the process (e.g., higher temperatures). Thermodynamics of the protonation and complexation of HEDTA with Ln3+ were studied at variable temperatures. Equilibrium constants and enthalpies were determined by a combination of techniques including potentiometry and calorimetry. This paper presents the protonation constants of HEDTA at T = (25 to 70) C. The potentiometric titrations have demonstrated that, stepwise, the ?rst two protonation constants decrease and the third one slightly increases with the increase of temperature. This trend is in good agreement with the enthalpy of proton-ation directly determined by calorimetry. The results of NMR analysis further con?rm that the ?rst two protonation reactions occur on the diamine nitrogen atoms, while the third protonation reaction occurs on the oxygen of a carboxylate group. These data, in conjunction with the thermodynamic parameters of Ln3+/An3+ complexes with HEDTA at different temperatures, will help to predict the speciation and temperature-dependent behavior of Ln3+/An3+ in the modi?ed TALSPEAK process.

  1. Electrochemical Oxidation of H2 Catalyzed by Ruthenium Hydride Complexes Bearing P2N2 Ligands With Pendant Amines as Proton Relays

    SciTech Connect (OSTI)

    Liu, Tianbiao L.; Rakowski DuBois, Mary; DuBois, Daniel L.; Bullock, R. Morris

    2014-11-03T23:59:59.000Z

    Two Ru hydride complexes (Cp*Ru(PPh2NBn2)H, 1-H and (Cp*Ru(PtBu2NBn2)H, 2-H) supported by cyclic PR2NR'2 ligands (Cp* = ?5-C5Me5; 1,5-diaza-3,7-diphosphacyclooctane, where R = Ph or tBu and R' = Bn) have been synthesized and fully characterized. Both complexes are demonstrated to be electrocatalysts for oxidation of H2 (1 atm, 22 C) in the presence of external base, DBU (1,8-diazabicyclo[5.4.0]undec-7-ene). The turnover frequency of 2-H is 1.2 s-1, with an overpotential at Ecat/2 of 0.45 V, while catalysis by 1-H has a turnover frequency of 0.6 s-1 and an overpotential of 0.6 V at Ecat/2. Addition of H2O facilitates oxidation of H2 by 2-H and increases its turnover frequency to 1.9 s-1 while , H2O slows down the catalysis by 1-H. The different effects of H2O for 1-H and 2-H are ascribed to different binding affinities of H2O to the Ru center of the corresponding unsaturated species, [Cp*Ru(PPh2NBn2)]+ and [Cp*Ru(PPh2NBn2)]+. In addition, studies of Cp*Ru(dmpm)H (where dmpm = bis(dimethylphosphino)methane), a control complex lacking pendent amines in its diphosphine ligand, confirms the critical roles of the pendent amines of P2N2 ligands for oxidation of H2. We thank the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences, for supporting initial parts of the work. Current work is supported by the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy.

  2. Characteristics of potential repository wastes

    SciTech Connect (OSTI)

    Notz, K.J.

    1989-01-01T23:59:59.000Z

    The Office of Civilian Radioactive Waste Management (OCRWM) is responsible for the spent fuels and other wastes that will be disposed of in a geologic repository. The two major sources of these materials are commercial light-water reactor (LWR) spent fuel and immobilized high-level waste (HLW). Other wastes that may require long-term isolation include non-LWR spent fuels and miscellaneous sources such as activated metals. Detailed characterizations are required for all of these potential repository wastes. These characterizations include physical, chemical, and radiological properties. The latter must take into account decay as a function of time. This information has been extracted from primary data sources, evaluated, and assembled in a Characteristics Data Base which provides data in four formats: hard copy standard reports, menu-driven personal computer (PC) data bases, program-level PC data bases, and mainframe computer files. The Characteristics Data Base provides a standard set of self-consistent data to the various areas of responsibility including systems integration and waste stream analysis, storage, transportation, and geologic disposal. The data will be used for design studies, evaluation of alternatives, and system optimization by OCRWM and supporting contractors. 7 refs., 5 figs., 7 tabs.

  3. Characteristics of spent nuclear fuel

    SciTech Connect (OSTI)

    Notz, K.J.

    1988-04-01T23:59:59.000Z

    The Office of Civilian Radioactive Waste Management (OCRWM) is responsible for the spent fuels and other wastes that will, or may, eventually be disposed of in a geological repository. The two major sources of these materials are commercial light-water reactor (LWR) spent fuel and immobilized high-level waste (HLW). Other wastes that may require long-term isolation include non-LWR spent fuels and miscellaneous sources such as activated metals. This report deals with spent fuels, but for completeness, the other sources are described briefly. Detailed characterizations are required for all of these potential repository wastes. These characteristics include physical, chemical, and radiological properties. The latter must take into account decay as a function of time. In addition, the present inventories and projected quantities of the various wastes are needed. This information has been assembled in a Characteristics Data Base which provides data in four formats: hard copy standard reports, menu-driven personal computer (PC) data bases, program-level PC data bases, and mainframe computer files. 5 refs., 3 figs., 4 tabs.

  4. Characteristic hypersurfaces in a relativistic superfluid theory

    E-Print Network [OSTI]

    B. Linet

    1998-12-16T23:59:59.000Z

    By discussing the Cauchy problem, we determine the covariant equation of the characteristic hypersurfaces in a relativistic superfluid theory.

  5. Modeling radiation characteristics of semitransparent media

    E-Print Network [OSTI]

    Pilon, Laurent

    and Viskanta8 have proposed a model for the effective radiation characteristics of glass foams. Their analysis

  6. Tier identification (TID) for tiered memory characteristics

    DOE Patents [OSTI]

    Chang, Jichuan; Lim, Kevin T; Ranganathan, Parthasarathy

    2014-03-25T23:59:59.000Z

    A tier identification (TID) is to indicate a characteristic of a memory region associated with a virtual address in a tiered memory system. A thread may be serviced according to a first path based on the TID indicating a first characteristic. The thread may be serviced according to a second path based on the TID indicating a second characteristic.

  7. Doppler characteristics of sea clutter.

    SciTech Connect (OSTI)

    Raynal, Ann Marie; Doerry, Armin Walter

    2010-06-01T23:59:59.000Z

    Doppler radars can distinguish targets from clutter if the target's velocity along the radar line of sight is beyond that of the clutter. Some targets of interest may have a Doppler shift similar to that of clutter. The nature of sea clutter is different in the clutter and exo-clutter regions. This behavior requires special consideration regarding where a radar can expect to find sea-clutter returns in Doppler space and what detection algorithms are most appropriate to help mitigate false alarms and increase probability of detection of a target. This paper studies the existing state-of-the-art in the understanding of Doppler characteristics of sea clutter and scattering from the ocean to better understand the design and performance choices of a radar in differentiating targets from clutter under prevailing sea conditions.

  8. Characteristics of potential repository wastes

    SciTech Connect (OSTI)

    Cowart, C.G.; Notz, K.J.

    1992-10-01T23:59:59.000Z

    This report presents the results of a fully documented peer review of DOE/RW-0184, Rev. 1, Characteristics of Potential Repository Wastes''. The peer review was chaired and administered by oak Ridge National Laboratory (ORNL) for the Department of Energy (DOE), Office of Civilian Radioactive Waste Management (OCRWM) and was conducted in accordance with OCRWM QA procedure QAAP 3.3 Peer Review'' for the purpose of quailing the document for use in OCRWM quality-affecting work. The peer reviewers selected represent a wide range of experience and knowledge particularly suitable for evaluating the subject matter. A total of 596 formal comments were documented by the seven peer review panels, and all were successfully resolved. The peers reached the conclusion that DOE/RW-0184, Rev. 1, is quality determined and suitable for use in quality-affecting work.

  9. Neutron diffraction study at 37 K of sodium triaqua(ethylenediaminetetraacetato)samarate(III) pentahydrate, Na[Sm(C10H12N2O8)(H2O)3].5H2O

    E-Print Network [OSTI]

    Engel, D. W.; Takusagawa, Fusao; Koetzle, T. F.

    1984-01-01T23:59:59.000Z

    at 37 K of Sodium Triaqua(ethylenediamine- tetraacetato)samarate(III) Pentahydrate, Na[Sm(C10H12N2O8)(H2O)3].5H2O* BY DENNIS W . ENGEL*|* Physics Department, University of Durban- Westville, Private Bag X54001, Durban 4000, South Africa AND FUSAO... by 1984 International Union of Crystallography 1688 Na[Sm(C10H12N2O8)(H2O)3].5H2O Hoard, Lee & Lind (1965) and Lee (1967). The authors reported the structures of KLa/1.8H20 and NaTM.8H20 by X-ray diffraction. A further X-ray determination...

  10. Housing Characteristics and Socio-Economic Status

    E-Print Network [OSTI]

    Minnesota, University of

    Housing Characteristics and Socio-Economic Status ROCOG's Environmental Justice Protocol Phil to show relationships between housing characteristics and household income ! Local real property data with survey-based SES data #12;Housing Type & EJ Populations Type of Residence Total Pupils Pupils Eligible

  11. 5, 37233745, 2005 characteristics of ice

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    ACPD 5, 37233745, 2005 Chemical characteristics of ice nuclei in anvil cirrus clouds C. H. Twohy and Physics Discussions Chemical characteristics of ice residual nuclei in anvil cirrus clouds: evidence for homogeneous and heterogeneous ice formation C. H. Twohy 1 and M. R. Poellot 2 1 College of Oceanic

  12. Measurement of the cross sections of the reaction /sup 237/Np (n, 2n) /sup 236/Np (22. 5 h) for neutron energies in the range 7-10 MeV

    SciTech Connect (OSTI)

    Kornilov, N.V.; Balitskii, A.V.; Baryba, V.Y.; Kuz'minov, B.D.; Rudenko, A.P.

    1985-08-01T23:59:59.000Z

    This paper presents experimental results of the study of the energy dependence of the cross section for the formation of /sup 236/PU in the reaction /sup 237/Np (n, 2n). Together with the results for neutron energies near 14 MeV, they present the possibility for describing this cross section in the entire energy interval of importance for fast reactors. The urgency of a theoretical study of the reaction examined here remains, taking into account the quantum characterisitics of the low-lying levels.

  13. On a Theorem on sums of the form 1+2^(2^n)+2^(2^n+1)+...+2^(2^n+m) and a result linking Fermat with Mersenne numbers

    E-Print Network [OSTI]

    Konstantine "Hermes" Zelator

    2008-06-09T23:59:59.000Z

    In his book "250 Problems in Elementary Number Theory", W.Sierpinski shows that the numbers 1+2^(2^n)+2^(2^n+1) are divisible by 21; for n=1,2,.... In this paper, we prove a similar but more general result.Consider the natural numbers of the form I(n.m)= 1+2^(2^n)+2^(2^n+1)+...+2^(2^n+m).In Theorem 1 we prove that for every odd integer N greater than 1, there exist infinitely many natural numbers n and m such that the integers I(n.m) are divisible by N. We give an explicit construction of the numbers n and m, for a given N. As an example, when N=31, and with n=4k and m=94+124i, the numbers I(n,m) are divisible by 31. A similar example is offered for N=(31)(7)=217. In Theorem 2, we prove a result pertaining to Mersenne numbers.There are also three Corollaries in this work, one of which deals with Fermat numbers.

  14. Market characteristics of future oil tanker operations

    E-Print Network [OSTI]

    Willemann, Simmy Dhawan

    2014-01-01T23:59:59.000Z

    This work analyzes the market characteristics of future oil tanker operations with a particular emphasis on those aspects which will have a potential impact on the design of future vessels. The market analysis model used ...

  15. Contractual form, retail price and asset characteristics

    E-Print Network [OSTI]

    Shepard, Andrea

    1991-01-01T23:59:59.000Z

    Predictions derived from a principal-agent analysis of the manufacturer-retailer relationship are derived and tested using microdata on contractual form, outlet characteristics and retail prices for gasoline stations in ...

  16. Power Characteristics of Industrial Air Compressors

    E-Print Network [OSTI]

    Schmidt, C.; Kissock, K.

    The power draw characteristics of air compressors are primarily determined by the type of compressor control and the relationship between the compressor's output capacity and the compressed air demand in the plant. In this paper, we review the most...

  17. Changes in precipitation characteristics and extremes

    E-Print Network [OSTI]

    Allan, Richard P.

    changes in two different climate scenarios. In the Mediterranean region, precipitation amount, frequencyChanges in precipitation characteristics and extremes Comparing Mediterranean to change Swiss with climate change, with potentially severe impacts on human society and ecosystems. This study analyses

  18. Future characteristics of Offshore Support Vessels

    E-Print Network [OSTI]

    Rose, Robin Sebastian Koske

    2011-01-01T23:59:59.000Z

    The objective of this thesis is to examine trends in Offshore Support Vessel (OSV) design and determine the future characteristics of OSVs based on industry insight and supply chain models. Specifically, this thesis focuses ...

  19. ON THE EULER CHARACTERISTIC. JIMMY DILLIES

    E-Print Network [OSTI]

    Dillies, Jimmy

    ON THE EULER CHARACTERISTIC. JIMMY DILLIES 1. Planar graphs A planar graph is a graph that can Platonic solids. Figure 1. Stereographic projection 1 #12;2 JIMMY DILLIES Figure 2. The Platonic Solids

  20. Program Characteristics that Predict Improved Learner Outcomes

    E-Print Network [OSTI]

    Patterson, Margaret; Mellard, Daryl

    2007-06-01T23:59:59.000Z

    This study identifies adult education program characteristics that predict improved learner outcomes through statistical analyses of data across four years in a single state. Data indicate that, collectively, several ...

  1. Mechanical characteristics of a flanged prosthesis

    E-Print Network [OSTI]

    Araujo, Tatiana Ivonne

    1982-01-01T23:59:59.000Z

    IECHANICAL CHARACTERISTICS OF A FLF':ED PROSTHESIS A Thesis by TATIANA IVONNE ARAUJO Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1982 Flajot... Subfect: gioengineering MECHANICAL CHARACTERISTICS OF A FLANGED PROSTHESIS A Thesis by TATIANA IVONNE ARAUJO Approved as to style and content by: (Chairman of Co ittee) (Member) (Member) (Member) (Head of Department) August 1982 ABST. RACT...

  2. A Hydrogen-Evolving Ni(P2N2)2 Electrocatalyst Covalently Attached to a Glassy Carbon Electrode: Preparation, Characterization, and Catalysis. Comparisons With the Homogeneous Analog

    SciTech Connect (OSTI)

    Das, Atanu K.; Engelhard, Mark H.; Bullock, R. Morris; Roberts, John A.

    2014-07-07T23:59:59.000Z

    A hydrogen-evolving homogeneous Ni(P2N2)2 electrocatalyst with peripheral ester groups has been covalently attached to a 1,2,3-triazolyllithium-terminated glassy carbon electrode. The surface-confined complex is an electroctalyst for hydrogen evolution, showing onset of catalytic current at the same potential as the soluble parent complex. X-ray photoemission spectra show excellent agreement between the coupled and homogeneous species. Coverage approaches a dense monolayer. This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy. The XPS measurements were performed at EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory.

  3. OPTIMIZATION OF OPERATIONAL CHARACTERISTICS OF SHOTBLASTING TURBINE

    E-Print Network [OSTI]

    Ale Hribernik; Bojan A?ko; Gorazd Bombek

    A parametric study has been performed in order to optimize the operational characteristics of shotblasting turbine used for surface cleaning of metal products in foundries. The study has been focused on four main parameters: shot velocity, shot distribution, shot mass flow and turbine efficiency. Different turbine designs were experimentally studied which enabled the influence factors to be identified and then quantified by means of comparison of original and modified turbine characteristics. The step-by-step optimization was then performed which resulted in redesigned shotblasting turbine with improved operational characteristics. Up to 35 % higher maximum massflow rate of shot particles has been achieved and turbine efficiency has been improved by more than 6 %. Just slight reduction of shot flow velocity was observed (only 2 %), which confirms an important improvement of shotblasting potentials of new turbine.

  4. Electrospray characteristic curves: in pursuit of improved performance...

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

    Electrospray characteristic curves: in pursuit of improved performance in the nano-flow regime. Electrospray characteristic curves: in pursuit of improved performance in the...

  5. Detailed Assessment of Particulate Characteristics from Low-Temperatur...

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

    Assessment of Particulate Characteristics from Low-Temperature Combustion Engines Detailed Assessment of Particulate Characteristics from Low-Temperature Combustion Engines 2012...

  6. Experimental and Modeling Studies of the Characteristics of Liquid...

    Energy Savers [EERE]

    Experimental and Modeling Studies of the Characteristics of Liquid Biofuels for Enhanced Combustion Experimental and Modeling Studies of the Characteristics of Liquid Biofuels for...

  7. Differences in the Physical Characteristics of Diesel PM with...

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

    Differences in the Physical Characteristics of Diesel PM with Increasing Biofuel Blend Level Differences in the Physical Characteristics of Diesel PM with Increasing Biofuel Blend...

  8. Design and operating characteristics of a transient kinetic analysis...

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

    operating characteristics of a transient kinetic analysis catalysis reactor system employing in situ transmission Design and operating characteristics of a transient kinetic...

  9. An Experimental Study of PM Emission Characteristics of Commercial...

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

    An Experimental Study of PM Emission Characteristics of Commercial Diesel Engine with Urea-SCR System An Experimental Study of PM Emission Characteristics of Commercial Diesel...

  10. Sciences Po Grenoble working paper n.2

    E-Print Network [OSTI]

    Boyer, Edmond

    will first analyse the forms of resistance to hard law based on the widespread secondary literature available. This will then be compared to areas in which soft law reigns, with a view to demonstrate that soft law triggers as much resistance as hard law. Based on this empirical data and using a policy instruments approach, the paper

  11. Ao XI, N2 / 2002 Mayo -Agosto

    E-Print Network [OSTI]

    Gracia, Carlos

    manifiesto que, ms all del calentamiento global, existen dos cinturones en el planeta situados cambios de la temperatura global del planeta han sido inferiores a 1 C por siglo durante los ltimos 10

  12. RSE Table N2.1 and N2.2. Relative Standard Errors for Tables N2.1 and N2.2

    U.S. Energy Information Administration (EIA) 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghurajiConventionalMississippi"site.1 Relative Standard Errors for Table 1.1;"2 RelativeE8.1

  13. Green functions for groups of types E6 and F4 in characteristic 2

    E-Print Network [OSTI]

    Malle, Gunter

    Green functions for groups of types E6 and F4, Germany In this paper we determine the Green functions for the connected groups E6(2n ), 2E 6(2n ) and F4(2n ), and the outer Green functions for the discon- nected groups E6(2n ): 2 and 2E6(2n ): 2

  14. Original article Preconditioning treatment maintains taste characteristic

    E-Print Network [OSTI]

    Crisosto, Carlos H.

    `September Sun' peach following cold storage Rodrigo Infante,1 * Claudio Meneses1 & Carlos H. Crisosto2 1 fruits immediately after harvest and prior to cold storage at 20 °C for 24­48 h in special chambers aimed preconditioned and transferred to cold storage for 12, 26 and 40 days and evaluated for sensory characteristic

  15. PressurePressure Indiana Coal Characteristics

    E-Print Network [OSTI]

    Fernndez-Juricic, Esteban

    TimeTime PressurePressure Indiana Coal Characteristics Indiana Coals for Coke CoalTransportation in Indiana Coal Slurry Ponds Evaluation Site Selection for Coal Gasification Coal-To-Liquids Study, CTL Indiana Coal Forecasting Under-Ground Coal Gasification Benefits of Oxyfuel Combustion Economic

  16. Superconducting wire with improved strain characteristics

    DOE Patents [OSTI]

    Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (E. Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

    1982-01-01T23:59:59.000Z

    A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improves the strain characteristics of the wire.

  17. Superconducting wire with improved strain characteristics

    DOE Patents [OSTI]

    Luhman, Thomas (Westhampton Beach, NY); Klamut, Carl J. (East Patchogue, NY); Suenaga, Masaki (Bellport, NY); Welch, David (Stony Brook, NY)

    1982-01-01T23:59:59.000Z

    A superconducting wire comprising a superconducting filament and a beryllium strengthened bronze matrix in which the addition of beryllium to the matrix permits a low volume matrix to exhibit reduced elastic deformation after heat treating which increases the compression of the superconducting filament on cooling and thereby improve the strain characteristics of the wire.

  18. Measurements of Smoke Characteristics in HVAC Ducts

    E-Print Network [OSTI]

    Wolin, Steven D; Ryder, Noah L; Leprince, Frederic; Milke, James; Mowrer, Frederick; Torero, Jose L

    2001-01-01T23:59:59.000Z

    The characteristics of smoke traveling in an HVAC duct have been observed along with the response of selected duct smoke detectors. The simulated HVAC system consists of a 9 m long duct, 0.45 m in diameter. An exhaust fan is placed at one end...

  19. Performance Characteristics of an Isothermal Freeze Valve

    SciTech Connect (OSTI)

    Hailey, A.E.

    2001-08-22T23:59:59.000Z

    This document discusses performance characteristics of an isothermal freeze valve. A freeze valve has been specified for draining the DWPF melter at the end of its lifetime. Two freeze valve designs have been evaluated on the Small Cylindrical Melter-2 (SCM-2). In order to size the DWPF freeze valve, the basic principles governing freeze valve behavior need to be identified and understood.

  20. Analyzing Characteristics of Incremental Lifecycle by using

    E-Print Network [OSTI]

    Bae, Doo-Hwan

    of increments #12;2006-10-02 5/18 Background(1/2) Incremental lifecycle Divide software product into piecesAnalyzing Characteristics of Incremental Lifecycle by using Simulation 2006.09.13 #12;2006-10-02 2 contribution Research plan #12;2006-10-02 3/18 Motivation(1/2) Flexible lifecycle model has difficulty

  1. Dependability characteristics and safety criteria for an

    E-Print Network [OSTI]

    Johansson, Roger

    in centralized control. Such systems are referred to as Automatic Train Control (ATC) systems [1]. For simplicityDependability characteristics and safety criteria for an embedded distributed brake control system distributed brake control system in railway freight trains ROGER JOHANSSON1 Department of Electrical

  2. Gauge Invariant Spectral Cauchy Characteristic Extraction

    E-Print Network [OSTI]

    Casey J. Handmer; Bla Szilgyi; Jeffrey Winicour

    2015-02-24T23:59:59.000Z

    We present gauge invariant spectral Cauchy characteristic extraction. We compare gravitational waveforms extracted from a head-on black hole merger simulated in two different gauges by two different codes. We show rapid convergence, demonstrating both gauge invariance of the extraction algorithm and consistency between the legacy Pitt null code and the much faster Spectral Einstein Code (SpEC).

  3. Primary and secondary lithium passivation characteristics and effects in the Li/SO sub 2 couple

    SciTech Connect (OSTI)

    Bittner, H.F. (Aerospace Corp., Los Angeles, CA (USA). Chemistry and Physics Lab.)

    1989-11-01T23:59:59.000Z

    This paper presents a study of the characteristics and effects of the lithium passivation layer in the lithium sulfur dioxide (Li/SO{sub 2}) cell. Four aspects have been investigated: passivation layer-induced polarization; effects of long-term, low discharge rates; chemistry of the lithium passivation layer; and kinetics of the passivation layer growth. Polarization studies showed that an initial polarization (voltage delay) was in some cases followed by a secondary polarization. Studies of the effects of long-term, low discharge rates indicated that low discharge rates modified the lithium passivation layer, which resulted in increased lithium corrosion and decreased cell capacity. The degradation was greater at higher temperature. Results of the studies of the chemistry and formation kinetics of the lithium passivation layer were interpreted in terms of a primary layer, which was responsible for the passivation, and a thicker, porous secondary layer. Formation of the secondary layer is exacerbated by partial discharge. The secondary layer results from precipitation of the Li corrosion products, and was found to contain Li{sub 2}S{sub 2}O{sub 4}, Li{sub 2}S{sub 2}O{sub 5}, and Li{sub 2}S{sub n}O{sub 6}, where n > 2. The primary layer is responsible for the initial polarization (voltage delay) under load, whereas the secondary layer induces a second polarization that inhibits high-rate discharge.

  4. Self-Calibration of Neutrino Detectors using characteristic Backgrounds

    E-Print Network [OSTI]

    Joachim Kopp; Manfred Lindner; Alexander Merle

    2007-03-06T23:59:59.000Z

    We introduce the possibility to use characteristic natural neutrino backgrounds, such as Geoneutrinos (\\bar{\

  5. Optimal geometries and harmonic vibrational frequencies of the global minima of water clusters (H2O)n, n=2-6, and several hexamer local minima at the CCSD(T) level of theory

    SciTech Connect (OSTI)

    Miliordos, Evangelos; Apra, Edoardo; Xantheas, Sotiris S.

    2013-09-21T23:59:59.000Z

    We report the first optimum geometries and harmonic vibrational frequencies for the ring pentamer and several water hexamer (prism, cage, cyclic and two book) at the CCSD(T)/aug-cc-pVDZ level of theory. All five hexamer isomer minima previously reported by MP2 are also minima on the CCSD(T) potential energy surface (PES). In addition, all CCSD(T) minimum energy structures for the n=2-6 cluster isomers are quite close to the ones previously obtained by MP2 on the respective PESs, as confirmed by a modified Procrustes analysis that quantifies the difference between any two cluster geometries. The CCSD(T) results confirm the cooperative effect of the homodromic ring networks (systematic contraction of the nearest-neighbor (nn) intermolecular separations with cluster size) previously reported by MP2, albeit with O-O distances shorter by ~0.02 , indicating that MP2 overcorrects this effect. The harmonic frequencies at the minimum geometries were obtained by the double differentiation of the CCSD(T) energy using an efficient scheme based on internal coordinates that reduces the number of required single point energy evaluations by ~15% when compared to the corresponding double differentiation using Cartesian coordinates. Negligible differences between MP2 and CCSD(T) are found for the librational modes, while uniform increases of ~15 and ~25 cm-1 are observed for the bending and free OH harmonic frequencies. The largest differences between MP2 and CCSD(T) are observed for the harmonic hydrogen bonded frequencies. The CCSD(T) red shifts from the monomer frequencies (??) are smaller than the MP2 ones, due to the fact that the former produces shorter elongations (?R) of the respective hydrogen bonded OH lengths from the monomer value with respect to the latter. Both the MP2 and CCSD(T) results for the hydrogen bonded frequencies were found to closely follow the relation - ?? = s ? ?R, with a rate of s = 20.3 cm-1 / 0.001 . The CCSD(T) harmonic frequencies, when corrected using the MP2 anharmonicities obtained from second order vibrational perturbation theory (VPT2), produce anharmonicCCSD(T) estimates that are within < 60 cm-1 from the measured infrared (IR) active bands of the n=2-6 clusters and furthermore trace the observed red shifts with respect to the monomer (??) quite accurately. The energetic order between the various hexamer isomers on the PES (prism has the lowest energy) previously reported at MP2 was found to be preserved at the CCSD(T) level, whereas the inclusion of anharmonic corrections further stabilizes the cage among the hexamer isomers.

  6. 2010 New Mexico Water Research Symposium August 3, 2010 C-1 Curb the Urge to Purge: Is Now the Time to Switch to No-Purge Ground

    E-Print Network [OSTI]

    Johnson, Eric E.

    33965, 970-691-2241 #12;2010 New Mexico Water Research Symposium August 3, 2010 C-3 Living Off-Grid family of three lives comfortably off-grid without a well in an arid region (~9 in/yr, average

  7. Measuring spatial variability in soil characteristics

    DOE Patents [OSTI]

    Hoskinson, Reed L. (Rigby, ID); Svoboda, John M. (Idaho Falls, ID); Sawyer, J. Wayne (Hampton, VA); Hess, John R. (Ashton, ID); Hess, J. Richard (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    The present invention provides systems and methods for measuring a load force associated with pulling a farm implement through soil that is used to generate a spatially variable map that represents the spatial variability of the physical characteristics of the soil. An instrumented hitch pin configured to measure a load force is provided that measures the load force generated by a farm implement when the farm implement is connected with a tractor and pulled through or across soil. Each time a load force is measured, a global positioning system identifies the location of the measurement. This data is stored and analyzed to generate a spatially variable map of the soil. This map is representative of the physical characteristics of the soil, which are inferred from the magnitude of the load force.

  8. Characteristics of potential repository wastes. Volume 1

    SciTech Connect (OSTI)

    Not Available

    1992-07-01T23:59:59.000Z

    This document, and its associated appendices and microcomputer (PC) data bases, constitutes the reference OCRWM data base of physical and radiological characteristics data of radioactive wastes. This Characteristics Data Base (CDB) system includes data on spent nuclear fuel and high-level waste (HLW), which clearly require geologic disposal, and other wastes which may require long-term isolation, such as sealed radioisotope sources. The data base system was developed for OCRWM by the CDB Project at Oak Ridge National Laboratory. Various principal or official sources of these data provided primary information to the CDB Project which then used the ORIGEN2 computer code to calculate radiological properties. The data have been qualified by an OCRWM-sponsored peer review as suitable for quality-affecting work meeting the requirements of OCRWM`s Quality Assurance Program. The wastes characterized in this report include: light-water reactor (LWR) spent fuel and immobilized HLW.

  9. Shrinkage - cracking characteristics of structural lightweight concrete

    E-Print Network [OSTI]

    McKeen, Robert Gordon

    1969-01-01T23:59:59.000Z

    1969 ABSTRACT Shrinkage-Cracking Characteristics of Structural Lightweight Concrete (August 1969) B. S. C. E. , Texas AERY University Directed by: if. B. Ledbetter Tests were conducted to det. trains the effect of coarse. s -gre- gate type...'csults indicated that both unrestrained shrinkage and concret. c water loss relate to restrained shrinkage stress. Unrestrained shrinks e did not indicate. cracking ter. dency while we+ er loss provided an indi cati on of cr cking tendency. ACRRO!Jr. ROOD. i...

  10. Experimental production characteristics of anticlinal reservoirs

    E-Print Network [OSTI]

    Williams, Charles David

    1959-01-01T23:59:59.000Z

    The production characteristics of an anticlinal model reservoir have been studied. The results show the effects of production rate, structural well location, well density, and fluid properties on the oil and gas recovery. The results of this study indicate... the need to shut in high gas- oil ratio wells in order to achieve maximum recovery. An increase in well density increased recovery significantly for both upstructure and downstructure wells. An increase in the production rate appeared to increase re...

  11. Aerosol collection characteristics of ambient aerosol samplers

    E-Print Network [OSTI]

    Ortiz, Carlos A

    1978-01-01T23:59:59.000Z

    are contained in Appendix C. Dichotomous Sam ler The basic principle of operation of the dichotomous, Figure 9, is that aerosol particles are passed through an acceleration nozzle where the particle velocity is increased to a speed V. at the nozzle exit... AEROSOL COLLECTION CHARACTERISTICS OF AMBIENT AEROSOL SAMPLERS A Thesis by CARLOS A. ORTIZ Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1978...

  12. A heat engine with unique characteristics

    SciTech Connect (OSTI)

    Baranescu, G.S. [ATR Corp., Western Springs, IL (United States)

    1996-12-31T23:59:59.000Z

    A heat engine which operates with one heat reservoir is described. The engine transforms the heat input completely into work by using a compressed fluid from a resource of the environment. For this reason the engine is not a perpetual motion machine of the second kind. The characteristics of the engine are analyzed, and the ways for achieving the most economic use of the compressed fluid are described. The principle of operation of the engine shows that the concepts of phenomenological thermodynamics regarding heat and its transformation in other forms of energy are not true.

  13. Psychological characteristics of voluntarily childless individuals

    E-Print Network [OSTI]

    Hall, Claudia Helt

    1978-01-01T23:59:59.000Z

    in the Study, Total Sample (N = 160) 4 F-Values Comparing Those Who Do Not Want Children With a Group That Does on Age, Sex, Education, and Marital Status. 23 24 26 27 PSYCHOLOGICAL CHARACTERISTICS OF VOLUNTARILY CHILDLESS INDIVIDUALS In recent years... but in accord with research predictions, the neuroticism-stability scale revealed no significant dif- ferences among the four groups (mean scores were 9 . 4, 9 . 6, 9. 6, and 9. 2, each p&. 5). Thus it does not appear that voluntarily childless individuals...

  14. Flow characteristics in underground coal gasification

    SciTech Connect (OSTI)

    Chang, H.L.; Himmelblau, D.M.; Edgar, T.F.

    1982-01-01T23:59:59.000Z

    During the underground coal gasification field test at the Hoe Creek site No. 2, Wyoming, helium pulses were introduced to develop information to characterize the flow field, and to estimate the coefficients in dispersion models of the flow. Quantitative analysis of the tracer response curves shows an increasing departure from a plug flow regime with time because of the combined effects of the free and forced convection in addition to the complex non-uniformity of the flow field. The Peclet number was a function of temperature, pressure, gas recovery and characteristic velocity, as well as the split of the gas between the parallel streams in the model. 17 refs.

  15. Characteristic structure of star-forming clouds

    E-Print Network [OSTI]

    Myers, Philip C

    2015-01-01T23:59:59.000Z

    This paper gives a new way to diagnose the star-forming potential of a molecular cloud region from the probability density function of its column density (N-pdf). It gives expressions for the column density and mass profiles of a symmetric filament having the same N-pdf as a filamentary region. The central concentration of this characteristic filament can distinguish regions and can quantify their fertility for star formation. Profiles are calculated for N-pdfs which are pure lognormal, pure power law, or a combination. In relation to models of singular polytropic cylinders, characteristic filaments can be unbound, bound, or collapsing depending on their central concentration. Such filamentary models of the dynamical state of N-pdf gas are more relevant to star-forming regions than are models of spherical collapse. The star formation fertility of a bound or collapsing filament is quantified by its mean mass accretion rate when in radial free fall. For a given mass per length, the fertility increases with the ...

  16. Performance Characteristics of Coal-to-Liquids (CTL) Diesel in...

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

    Characteristics of Coal-to-Liquids (CTL) Diesel in a 50-State Emissions Compliant Passenger Car Performance Characteristics of Coal-to-Liquids (CTL) Diesel in a 50-State Emissions...

  17. Soil Hydraulic Characteristics of a Small Southwest Oregon Watershed Following

    E-Print Network [OSTI]

    Standiford, Richard B.

    --------------------------------------------- Soil Hydraulic Characteristics of a Small Southwest by a high-intensity burn over areas of steep topography. The areal distribution of soil hydraulic of infiltration capacity, saturated hydraulic conductivity, and soil moisture characteristics. Also, measures

  18. Characteristics of a corona discharge with a hot corona electrode

    SciTech Connect (OSTI)

    Kulumbaev, E. B.; Lelevkin, V. M.; Niyazaliev, I. A.; Tokarev, A. V. [Kyrgyz-Russian Slavic University (Kyrgyzstan)

    2011-08-15T23:59:59.000Z

    The effect of the temperature of the corona electrode on the electrical characteristics of a corona discharge was studied experimentally. A modified Townsend formula for the current-voltage characteristic of a one-dimensional corona is proposed. Gasdynamic and thermal characteristics of a positive corona discharge in a coaxial electrode system are calculated. The calculated results are compared with the experimental data.

  19. MENTOR READINESS ASSESSMENT Effective and Ineffective Characteristics of a Mentor

    E-Print Network [OSTI]

    Maranas, Costas

    MENTOR READINESS ASSESSMENT Effective and Ineffective Characteristics of a Mentor The ten characteristics below serve as a measure for determining your readiness to be a mentor. There are five effective Characteristics 1. Spot the Potential & Believe in Others Effective mentors have a positive view of others

  20. Hydrothermally grown nanostructured WO films and their electrochromic characteristics

    E-Print Network [OSTI]

    Demir, Hilmi Volkan

    Hydrothermally grown nanostructured WO 3 films and their electrochromic characteristics.1088/0022-3727/43/28/285501 Hydrothermally grown nanostructured WO3 films and their electrochromic characteristics Zhihui Jiao1 , Xiao Wei and their electrochromic characteristics. Plate-like monoclinic WO3 nanostructures were grown directly on fluorine

  1. Ris-R-1472(EN) Database on Wind Characteristics

    E-Print Network [OSTI]

    Ris-R-1472(EN) Database on Wind Characteristics Contents of Database Bank, revision I Gunner C on Wind Characteristics Contents of the database, revision I Abstract The main objective of IEA R&D Wind Annex XVII - Database on Wind Characteristics - has been to provide wind energy planners, designers

  2. Ris-R-1473(EN) Database on Wind Characteristics

    E-Print Network [OSTI]

    Ris-R-1473(EN) Database on Wind Characteristics Analyses of Wind Turbine Design Loads Gunner C R&D Wind Annex XVII - Database on Wind #12;IEA Annex XVII, Database on Wind Characteristics Analyses of W Characteristics - has been to provide wind energy planners, designers and researchers, as well

  3. Ris-R-1301(EN) Database on Wind Characteristics

    E-Print Network [OSTI]

    Ris-R-1301(EN) Database on Wind Characteristics Contents of Database Bank Gunner C. Larsen Ris XVII, Database on Wind Characteristics - Contents of the database Abstract The main objective of IEA R&D Wind Annex XVII - Database on Wind Characteristics - is to provide wind energy planners and designers

  4. Viscoelastic DampingViscoelastic Damping Characteristics of Indium-Tin/Characteristics of Indium-Tin/SiCSiC

    E-Print Network [OSTI]

    Swan Jr., Colby Corson

    1 Viscoelastic DampingViscoelastic Damping Characteristics of Indium-Tin/Characteristics of Indium-Tin Approach: Based on past experience, indium-tin has well- characterized stiffness/damping. Fabricate

  5. Characteristics of transverse waves in chromospheric mottles

    SciTech Connect (OSTI)

    Kuridze, D.; Mathioudakis, M.; Jess, D. B.; Keenan, F. P. [Astrophysics Research Center, School of Mathematics and Physics, Queen's University, Belfast BT7 1NN (United Kingdom); Verth, G.; Erdlyi, R. [Solar Physics and Space Plasma Research Center (SP2RC), University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (United Kingdom); Morton, R. J. [Mathematics and Information Science, Northumbria University, Camden Street, Newcastle Upon Tyne NE1 8ST (United Kingdom); Christian, D. J., E-mail: dkuridze01@qub.ac.uk [Department of Physics and Astronomy, California State University, Northridge, CA 91330 (United States)

    2013-12-10T23:59:59.000Z

    Using data obtained by the high temporal and spatial resolution Rapid Oscillations in the Solar Atmosphere instrument on the Dunn Solar Telescope, we investigate at an unprecedented level of detail transverse oscillations in chromospheric fine structures near the solar disk center. The oscillations are interpreted in terms of propagating and standing magnetohydrodynamic kink waves. Wave characteristics including the maximum transverse velocity amplitude and the phase speed are measured as a function of distance along the structure's length. Solar magnetoseismology is applied to these measured parameters to obtain diagnostic information on key plasma parameters (e.g., magnetic field, density, temperature, flow speed) of these localized waveguides. The magnetic field strength of the mottle along the ?2 Mm length is found to decrease by a factor of 12, while the local plasma density scale height is ?280 80 km.

  6. Flow characteristics in underground coal gasification

    SciTech Connect (OSTI)

    Chang, H.L.; Himmelblau, D.M.; Edgar, T.F.

    1982-01-01T23:59:59.000Z

    During the Hoe Creek No. 2 (Wyoming) underground-coal-gasification field test, researchers introduced helium pulses to characterize the flow field and to estimate the coefficients in dispersion models of the flow. Flow models such as the axial-dispersion and parallel tanks-in-series models allowed interpretation of the in situ combustion flow field from the residence time distribution of the tracer gas. A quantitative analysis of the Hoe Creek tracer response curves revealed an increasing departure from a plug-flow regime with time, which was due to the combined effects of the free and forced convection in addition to the complex nonuniformity of the flow field. The Peclet number was a function of temperature, pressure, gas recovery, and characteristic velocity, as well as the split of the gas between the parallel streams in the model.

  7. Hydrodynamic force characteristics in the splash zone

    SciTech Connect (OSTI)

    Daliri, M.R.; Haritos, N. [Univ. of Melbourne, Parkville, Victoria (Australia). Dept. of Civil and Environmental Engineering

    1996-12-31T23:59:59.000Z

    A comprehensive experimental study concerned with the hydrodynamic force characteristics of both rigid and compliant surface piercing cylinders, with a major focus on the local nature of these characteristics as realized in the splash zone and in the fully submerged zone immediately below this region, has been in progress at the University of Melbourne for the last three years. This paper concentrates on a portion of this study associated with uni-directional regular wave inputs with wave steepness (H/{lambda}) in the range 0.0005--0.1580 and Keulegan-Carpenter (KC) numbers in the range 2--15 which encompasses inertia force dominant (KC<5) to drag force significant conditions (5

  8. Aluminum Honeycomb Characteristics in Dynamic Crush Environments

    SciTech Connect (OSTI)

    Bateman, Vesta I.; Swanson, Lloyd H.

    1999-07-01T23:59:59.000Z

    Fifteen aluminum honeycomb cubes (3 in.) have been crushed in the Mechanical Shock Laboratory's drop table testing machines. This report summarizes shock experiments with honeycomb densities of 22.1 pcf and 38.0 pcf and with crush weights of 45 lb, 168 lb, and 268 lb. The honeycomb samples were crushed in all three orientations, W, L, and T. Most of the experiments were conducted at an impact velocity of {approx}40 fps, but higher velocities of up to 90 fps were used for selected experiments. Where possible, multiple experiments were conducted for a specific orientation and density of the honeycomb samples. All results are for Hexcel honeycomb except for one experiment with Alcore honeycomb and have been evaluated for validity. This report contains the raw acceleration data measured on the top of the drop table carriage, pictures of the crushed samples, and normalized force-displacement curves for all fifteen experiments. These data are not strictly valid for material characteristics in L and T orientations because the cross-sectional area of the honeycomb changed (split) during the crush. However, these are the best data available at this time. These dynamic crush data do suggest a significant increase in crush strength to 8000 psi ({approximately} 25-30% increase) over quasi-static values of {approximately}6000 psi for the 38.0 pcf Hexcel Honeycomb in the T-orientation. An uncertainty analysis is included and estimates the error in these data.

  9. Measurements of uranium mill tailings consolidation characteristics

    SciTech Connect (OSTI)

    Fayer, M J

    1985-02-01T23:59:59.000Z

    A series of experiments were conducted on uranium mill tailings from the tailings pile in Grand Junction, Colorado, to determine their consolidation characteristics. Three materials (sand, sand/slimes mix, slimes) were loaded under saturated conditions to determine their saturated consolidated behavior. During a separate experiment, samples of the slimes material were kept under a constant load while the pore pressure was increased to determine the partially saturated consolidation behavior. Results of the saturated tests compared well with published data. Sand consolidated the least, while slimes consolidated the most. As each material consolidated, the measured hydraulic conductivity decreased in a linear fashion with respect to the void ratio. Partially saturated experiments with the slimes indicated that there was little consolidation as the pore pressure was increased progressively above 7 kPa. The small amount of consolidation that did occur was only a fraction of the amount of saturated consolidation. Preliminary measurements between pore pressures of 0 and 7 kPa indicated that measurable consolidation could occur in this range of pore pressure, but only if there was no load. 13 references, 13 figures.

  10. The Lyapunov Characteristic Exponents and their computation

    E-Print Network [OSTI]

    Charalampos Skokos

    2009-01-26T23:59:59.000Z

    We present a survey of the theory of the Lyapunov Characteristic Exponents (LCEs) for dynamical systems, as well as of the numerical techniques developed for the computation of the maximal, of few and of all of them. After some historical notes on the first attempts for the numerical evaluation of LCEs, we discuss in detail the multiplicative ergodic theorem of Oseledec \\cite{O_68}, which provides the theoretical basis for the computation of the LCEs. Then, we analyze the algorithm for the computation of the maximal LCE, whose value has been extensively used as an indicator of chaos, and the algorithm of the so--called `standard method', developed by Benettin et al. \\cite{BGGS_80b}, for the computation of many LCEs. We also consider different discrete and continuous methods for computing the LCEs based on the QR or the singular value decomposition techniques. Although, we are mainly interested in finite--dimensional conservative systems, i. e. autonomous Hamiltonian systems and symplectic maps, we also briefly refer to the evaluation of LCEs of dissipative systems and time series. The relation of two chaos detection techniques, namely the fast Lyapunov indicator (FLI) and the generalized alignment index (GALI), to the computation of the LCEs is also discussed.

  11. Quarterly report on the use of the purge water management system at Savannah River Site

    SciTech Connect (OSTI)

    Palmer, E.

    2000-02-09T23:59:59.000Z

    The purpose of this quarterly report is to compare groundwater chemical analysis data collected at four test wells using the PWMS against historical data collected using the standard monitoring well sampling methodology and to determine if the PWMS provides representative monitoring samples.

  12. Fission-product-decay characteristics. Master's thesis

    SciTech Connect (OSTI)

    Millage, K.K.

    1989-03-01T23:59:59.000Z

    This theses determined fission-product decay characteristics , including the total activity, the gamma-ray emission rate (GER) and gamma-ray energy spectra. The activity and GER decay were compared to Way and Wigner's t(exp(-1.2)) approximation, and the effects the spectra, activity, and GER have on the Source Normalization Constant (K) were examined. Most of the fission-product data were obtained from DKPOWR, and were compared with data obtained from ORIGIN2. Since the gamma rays are of primary concern in fallout studies, the GER is used instead of activity. The ratio of GER to activity changes significantly with time. Results of this study calculate a GER of 590 x 10/sup 16/ gamma rays/second per kT of fission yield from U-235 fuel and a K of 7059 R/Hr/(kT/sq.km.). The calculation of K includes the contribution from scattered photons. The GER result is 11% higher than reference values, while the K is within 2% of the current value in Glasstone and Dolan's The Effects of Nuclear Weapons. The Ks for Pu-239 and U-238 were within 5% of the U-235 results. The wax-wigners t(exp(-1.2)) approximation differs from time dependent GER and K up to 85% for times less than 6 months. The approximation is not valid for the GER or K at times greater than 6 months. The approximation is within about 45%, for the activity from fission-product decay to at least 5 years. A more accurate measure of exposure requires a numerical integration of the time dependent GER and Source Normalization Constant.

  13. Industrial structures : an analysis and transformation of their formal characteristics

    E-Print Network [OSTI]

    Strub, Damon

    1988-01-01T23:59:59.000Z

    Industrial structures such as blast furnaces, oil refineries, gravel crushers etc. are often beautiful and fascinating. Furthermore, they exemplify certain formal and organizational characteristics which could be incorporated ...

  14. VIBRATION CHARACTERISTICS OF AN APS LAB FACILITY IN BUILDING...

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

    VIBRATION CHARACTERISTICS OF AN APS LAB FACILITY IN BUILDING 401 by T. J. Royston, Summer Faculty Participant Experimental Facilities Division, Advanced Photon Source, Argonne...

  15. ac loss characteristics: Topics by E-print Network

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

    and solar heat gain characteristics of a home's windows performance by reducing heat loss (in the winter), and cooling loss and solar heat gain (in the summer 86...

  16. Characteristics and Effects of Lubricant Additive Chemistry and...

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

    on the Effects of LubricantAdditive (Low-Ash, Ashless) Characteristics on DPF Degradation Key Parameters Affecting DPF Performance Degradation and Impact on Lifetime Fuel...

  17. Combined Field Integral Equation Based Theory of Characteristic Mode

    E-Print Network [OSTI]

    Qi I. Dai; Qin S. Liu; Hui Gan; Weng Cho Chew

    2015-03-04T23:59:59.000Z

    Conventional electric field integral equation based theory is susceptible to the spurious internal resonance problem when the characteristic modes of closed perfectly conducting objects are computed iteratively. In this paper, we present a combined field integral equation based theory to remove the difficulty of internal resonances in characteristic mode analysis. The electric and magnetic field integral operators are shown to share a common set of non-trivial characteristic pairs (values and modes), leading to a generalized eigenvalue problem which is immune to the internal resonance corruption. Numerical results are presented to validate the proposed formulation. This work may offer efficient solutions to characteristic mode analysis which involves electrically large closed surfaces.

  18. Effects of atmospheres on bonding characteristics of silver and...

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

    temperature. To investigate the effects of atmospheres on the bonding characteristics of ceramic joints brazed with Ag-CuO braze filler metals, alumina joints prepared using a...

  19. Modeling radiation characteristics of semitransparent media containing bubbles or particles.

    E-Print Network [OSTI]

    Randrianalisoa, Jaona; Baillis, Dominique; Pilon, Laurent

    2006-01-01T23:59:59.000Z

    A. G. , and Pilon, L. , Glass foam: formation, transportcharacteristics of glass foams, Journal of the Americanradiation characteristics of glass foams. Their analysis was

  20. S P R I N G C O N V O C AT I O N 2 0 1 4 S F U ' S V I S I O N | T H E E N G A G E D U N I V E R S I T Y

    E-Print Network [OSTI]

    S P R I N G C O N V O C AT I O N 2 0 1 4 #12;S F U ' S V I S I O N | T H E E N G A G E D U N I V E ..............................................................................................................2 P R E S I D E N T ' S W E L C O M E .................................................................................................................................................3 P A R T I C I P A N

  1. Measurement of laser absorptivity for operating parameters characteristic of

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Measurement of laser absorptivity for operating parameters characteristic of laser drilling regime Boulevard de l'Hpital 75013 Paris France E-mail: matthieu.schneider@ensam.eu Abstract Laser drilling. Characteristic laser intensities in the range of 10 MW cm-2 are typically employed for drilling metallic targets

  2. Fractional Method of Characteristics for Fractional Partial Differential Equations

    E-Print Network [OSTI]

    Guo-cheng Wu

    2010-07-10T23:59:59.000Z

    The method of characteristics has played a very important role in mathematical physics. Preciously, it was used to solve the initial value problem for partial differential equations of first order. In this paper, we propose a fractional method of characteristics and use it to solve some fractional partial differential equations.

  3. Study of particle pumping characteristics for different pumping geometries in

    E-Print Network [OSTI]

    Karney, Charles

    Study of particle pumping characteristics for different pumping geometries in JT-60U and DIII, Princeton, New Jersey, United States of America Abstract. Particle pumping characteristics were compared between pumping from the inner side private flux region (IPP) and pumping from both sides of the private

  4. Eect of Job Size Characteristics on Job Scheduling Performance

    E-Print Network [OSTI]

    Feitelson, Dror

    Eect of Job Size Characteristics on Job Scheduling Performance Kento Aida Department an ap- propriate scheduling algorithm that schedules mul- tiple jobs on the computer system eciently. The goal of the work presented in this paper is to inves- tigate mechanisms how job size characteristics

  5. Predicting Panel Ratings for Semantic Characteristics of Lung Nodules

    E-Print Network [OSTI]

    Schaefer, Marcus

    Predicting Panel Ratings for Semantic Characteristics of Lung Nodules Dmitriy Zinovev De@cdm.depaul.edu ABSTRACT In reading CT scans with potentially malignant lung nodules, radiologists make use of high level a second opinion - predicting these semantic characteristics for lung nodules. In our previous work, we

  6. Ris-R-1300(EN) Database on Wind Characteristics

    E-Print Network [OSTI]

    - Database on Wind Characteristics - is to provide wind energy planners and designers, as well. Larsen Wind Energy and Atmospheric Physics Department Ris National Laboratory Post Office Box 49 DK-4000 Denmark, 2001 #12;IEA Annex XVII, Database on Wind Characteristics - Users Manual Ris-R-1300(EN) 3

  7. The Nevada railroad system: Physical, operational, and accident characteristics

    SciTech Connect (OSTI)

    NONE

    1991-09-01T23:59:59.000Z

    This report provides a description of the operational and physical characteristics of the Nevada railroad system. To understand the dynamics of the rail system, one must consider the system`s physical characteristics, routing, uses, interactions with other systems, and unique operational characteristics, if any. This report is presented in two parts. The first part is a narrative description of all mainlines and major branchlines of the Nevada railroad system. Each Nevada rail route is described, including the route`s physical characteristics, traffic type and volume, track conditions, and history. The second part of this study provides a more detailed analysis of Nevada railroad accident characteristics than was presented in the Preliminary Nevada Transportation Accident Characterization Study (DOE, 1990).

  8. N-(N-[2-(3,5-Difluorophenyl)acetyl]-(S)-alanyl)-(S)-phenylglycine tert-butyl ester (DAPT): an inhibitor of ?-secretase, revealing fine electronic and hydrogen-bonding features

    SciTech Connect (OSTI)

    Czerwinski, Andrzej; Valenzuela, Francisco [Peptides International Inc., 11621 Electron Drive, Louisville, KY 40299 (United States); Afonine, Pavel [Lawrence Berkeley National Laboratory, One Cyclotron Road, Building 64R0121, Berkeley, CA 94720 (United States); Dauter, Miroslawa, E-mail: dauter@anl.gov [Basic Research Program, SAIC-Frederick Inc., Synchrotron Radiation Research Section, MCL, NCI, Argonne National Laboratory, Biosciences Division, Building 202, Argonne, IL 60439 (United States); Dauter, Zbigniew [Synchrotron Radiation Research Section, MCL, NCI, Argonne National Laboratory, Biosciences Division, Building 202, Argonne, IL 60439 (United States); Peptides International Inc., 11621 Electron Drive, Louisville, KY 40299 (United States)

    2010-12-01T23:59:59.000Z

    The title compound, C{sub 23}H{sub 26}F{sub 2}N{sub 2}O{sub 4}, is a dipeptidic inhibitor of ?-secretase, one of the enzymes involved in Alzheimers dis@@ease. The mol@@ecule adopts a compact conformation, without intra@@molecular hydrogen bonds. In the crystal structure, one of the amide N atoms forms the only inter@@molecular NH?O hydrogen bond; the second amide N atom does not form hydrogen bonds. High-resolution synchrotron diffraction data permitted the unequivocal location and refinement without restraints of all H atoms, and the identification of the characteristic shift of the amide H atom engaged in the hydrogen bond from its ideal position, resulting in a more linear hydrogen bond. Significant residual densities for bonding electrons were revealed after the usual SHELXL refinement, and modeling of these features as additional inter@@atomic scatterers (IAS) using the program PHENIX led to a significant decrease in the R factor from 0.0411 to 0.0325 and diminished the r.m.s. deviation level of noise in the final difference Fourier map from 0.063 to 0.037 e {sup ?3}.

  9. Marvell NanoLab Member login Lab Manual Contents MercuryWeb Berkeley Microlab Chapter 5.35

    E-Print Network [OSTI]

    Healy, Kevin Edward

    - Quick dump rinse (DI water) 5.2 SRD - Spin rinse dry (DI water and N2 purge) 5.3 RTP - Rapid thermal their own calibration procedure to determine the correct offset needed for their critical runs, as explained if desired. Photoresist coated non-metalized wafers must initially have their photoresist processed

  10. Marvell NanoLab Member login Lab Manual Contents MercuryWeb Berkeley Microlab Chapter 5.34

    E-Print Network [OSTI]

    Healy, Kevin Edward

    - Quick dump rinse (DI water) 5.2 SRD - Spin rinse dry (DI water and N2 purge) 5.3 RTP - Rapid Thermal to determine the correct offset needed for their critical runs, as explained in Appendix 12.1. 8.1 Available8 and Msink6, and an ensuing one minute HF dip for oxide removal if desired. Photoresist coated non

  11. JOURNAL DE PHYSIQUE Colloque C5, supplkment au n05, Tome 50, mai 1989

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    schematicrepresentation of the reactor. FAST -em= PNEUMATIC VALVE HXEP MANUAL VALVE MASS FLOW CONTROLLER Figure 1:Schematic representationof the reactor.Thepurge lines are not drawn to make the schematic clearer) and TMB along the length of the boat. All other reactants, like 02,N2 (only used as purge gas)'and TEOS

  12. Delineating the biosynthesis of gentamicin X2, the common precursor of the gentamicin C antibiotic complex.

    E-Print Network [OSTI]

    Huang, Chuan; Huang, Fanglu; Moison, Eileen; Guo, Junhong; Jian, Xinyun; Duan, Xiaobo; Deng, Zixin; Leadlay, Peter F.; Sun, Yuhui

    2015-01-29T23:59:59.000Z

    added at this point. Cells were harvested by centrifu- gation and resuspended in Binding Buffer (0.5 M NaCl, 20 mM Tris-HCl [pH 7.9]). The Binding Buffer for GenD1 resuspension was purged with N2 for at least 30 min before use. The recombinant protein...

  13. Cardinal Characteristics and Denability n for these classes without parameters

    E-Print Network [OSTI]

    (SDF) 1 3 wellorders are consistent with MA + c = 2 (Caicedo-SDF) BPFA + 1 = L 1 1 3 wellorder Large bring 1 n denability into the study of cardinal characteristics? Theorem (Fischer-SDF) Each

  14. CLASSIFICATION OF QUADRATIC FORMS OVER SKEW FIELDS OF CHARACTERISTIC 2

    E-Print Network [OSTI]

    CLASSIFICATION OF QUADRATIC FORMS OVER SKEW FIELDS OF CHARACTERISTIC 2 MOHAMED ABDOU ELOMARY groups." 1 #12;2 MOHAMED ABDOU ELOMARY AND JEAN-PIERRE TIGNOL Theorem A. Let F be a local or global field

  15. CLASSIFICATION OF QUADRATIC FORMS OVER SKEW FIELDS OF CHARACTERISTIC 2

    E-Print Network [OSTI]

    CLASSIFICATION OF QUADRATIC FORMS OVER SKEW FIELDS OF CHARACTERISTIC 2 MOHAMED ABDOU ELOMARY groups.'' 1 #12; 2 MOHAMED ABDOU ELOMARY AND JEAN­PIERRE TIGNOL Theorem A. Let F be a local or global

  16. abnormal semen characteristics: Topics by E-print Network

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

    20 21 22 23 24 25 Next Page Last Page Topic Index 1 Changes in the characteristics of turkey ejaculated semen and ductus deferens semen with repeated ejaculations Physics Websites...

  17. A study of volatile flavor characteristics of capsicums

    E-Print Network [OSTI]

    Brazier, Craig Delaney

    1989-01-01T23:59:59.000Z

    steam distilled extracts. Table 5 is a listing of the compounds and their characteristic aroma descriptors. Table 5. Representative arana descriptors identified in Capsicum extracts (Chitwood et al. , 1983). Descriptor Source Cis-3-hexen-1-ol...

  18. Wind Shear Characteristics at Central Plains Tall Towers: Preprint

    SciTech Connect (OSTI)

    Schwartz, M.; Elliott, D.

    2006-06-01T23:59:59.000Z

    Conference paper for WindPower 2006 held June 4-7, 2006, in Pittsburgh, PA, describing the wind shear characteristics at tall tower sites in the Central Plains of the United States.

  19. Main Ecosystem Characteristics and Distribution of Wetlands in Boreal and

    E-Print Network [OSTI]

    9 Main Ecosystem Characteristics and Distribution of Wetlands in Boreal and Alpine Landscapes) was conducted during 25 years and generated results that indicate that about 15% of #12;Ecosystems Biodiversity

  20. The GHS Attack in odd Characteristic Claus Diem

    E-Print Network [OSTI]

    Diem, Claus

    The GHS Attack in odd Characteristic Claus Diem March 24, 2003 Abstract The GHS attack is originally an approach to attack the discrete- logarithm problem (DLP) in the group of rational points

  1. Parameterization of Urban Characteristics for Global Climate Modeling

    E-Print Network [OSTI]

    Jackson, Trisha L.

    2011-10-31T23:59:59.000Z

    of varying scales and effects of climate change on urban populations, urbanization must be included in global climate models (GCMs). To properly capture the spatial variability in urban areas, GCMs require global databases of urban extent and characteristics...

  2. Characteristics of a Marine Stratocumulus to Cumulus Cloud Transition

    E-Print Network [OSTI]

    Zapalac, Allison

    2014-12-08T23:59:59.000Z

    The studies in this thesis aim to improve the overall understanding of the characteristics of the marine stratocumulus to shallow cumulus transition over the southeast Pacific Ocean. This study uses observations from CloudSat and CALIPSO satellite...

  3. Chemical and isotopic characteristics of the coso east flank...

    Open Energy Info (EERE)

    and nature of the heat source Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Chemical and isotopic characteristics of the coso east...

  4. The Characteristic Ellipsoid Methodology and Its Application in Power Systems

    SciTech Connect (OSTI)

    Ma, Jian; Makarov, Yuri V.; Diao, Ruisheng; Etingov, Pavel V.; Dagle, Jeffery E.; De Tuglie, Enrico E.

    2012-11-01T23:59:59.000Z

    The characteristic ellipsoid (CELL) method to monitor dynamic behaviors of a power system is proposed. Multidimensional minimum-volume-enclosing characteristic ellipsoids are built using synchronized phasor measurements. System dynamic behaviors are identified by tracking the change rate of the CELLs characteristic indices. Decision tree techniques are used to link the CELLs characteristic indices and the systems dynamic behaviors and to determine types, locations and related information about the dynamic behaviors. The knowledge base of representative transient events is created by offline simulations based on the full Western Electric Coordinating Council (WECC) model. Two case studies demonstrate that the CELL method combined with the decision trees can detect transient events and their features with good accuracy.

  5. The paths and characteristics of real estate entrepreneurs

    E-Print Network [OSTI]

    Kazmierski, Michael (Michael Anthony)

    2008-01-01T23:59:59.000Z

    What paths have real estate entrepreneurs taken to establish their own firm? Also, what characteristics did they develop and utilize in the process? This thesis gives the unique opportunity to better understand the life ...

  6. Characteristics of Wind Turbines Under Normal and Fault Conditions: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Butterfield, C. P.; Parsons, B.; Ellis, A.

    2007-02-01T23:59:59.000Z

    This paper investigates the characteristics of a variable-speed wind turbine connected to a stiff or weak grid under normal and fault conditions and the role of reactive power compensation.

  7. Scattering Characteristics In Heterogeneous Fractured Reservoirs From Waveform Estimation

    E-Print Network [OSTI]

    Shen, Feng

    1998-01-01T23:59:59.000Z

    Offset-dependent characteristics of seismic scattering are useful in the interpretation of fractured reservoirs. Synthetic seismograms generated by a 3-D finite difference modeling are used to study elastic wave propagation ...

  8. Capillary characteristics in microfluidic experiments and computational simulation

    E-Print Network [OSTI]

    Das, Anusuya

    2011-01-01T23:59:59.000Z

    Angiogenesis is crucial during many physiological processes, and is influenced by various biochemical and biomechanical factors. Models have proven useful in understanding the mechanisms of angiogenesis and the characteristics ...

  9. Chemical and light-stable isotope characteristics of waters from...

    Open Energy Info (EERE)

    light-stable isotope characteristics of waters from the raft river geothermal area and environs, Cassia County, Idaho, Box Elder county, Utah Jump to: navigation, search OpenEI...

  10. The effects of surface conditions on boiling characteristics

    E-Print Network [OSTI]

    Lorenz, J. J.

    1972-01-01T23:59:59.000Z

    A unified model relating surface variables to the nucleate pool boiling characteristics was developed. A simple vapor trapping mechanism was postulated and a geometrical model constructed for idealized conical cavities ...

  11. Experimental evaluation of heat transfer characteristics of silica nanofluid

    E-Print Network [OSTI]

    Zhang, Zihao, S.B. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    The laminar convective heat transfer characteristics were investigated for silica nanofluid. An experimental loop was built to obtain heat transfer coefficients for single-phase nanofluids in a circular conduit in laminar ...

  12. On the Characteristics of Spectrum-Agile Communication Networks

    E-Print Network [OSTI]

    Liu, Xin

    , both the Federal Communications Commission (FCC) and the federal government have made important1 On the Characteristics of Spectrum-Agile Communication Networks Xin Liu Wei Wang Department almost all spectrum suitable for wireless communications have been allocated, preliminary studies

  13. A sociological analysis of serial murder: victim and offender characteristics

    E-Print Network [OSTI]

    Dunlap, Donna Jean

    1990-01-01T23:59:59.000Z

    A SOCIOLOGICAL ANALYSIS OF SERIAL MURDER: VICTIM AND OFFENDER CHARACTERISTICS A Thesis by DONNA JEAN DUNLAP 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 August 1990 Major Subject: Sociology A SOCIOLOGICAL ANALYSIS OF SERIAL MURDER: VICTIM AND OFFENDER CHARACTERISTICS A Thesis by DONNA JEAN DUNLAP Approved as to style and content by: Jane Sell (Chair of Committee) Ben M. Crouch...

  14. Characteristics of corn and sorghum for tortilla processing

    E-Print Network [OSTI]

    Gonzalez de Palacios, Maria de Jesus

    1980-01-01T23:59:59.000Z

    CHARACTERISTICS OF CORN AND SORGHUM FOR TORTILLA PROCESSING A Thesis by MARIA DE JESUS GONZALEZ DE PALACIOS Submitted to the Graduate College of Texas A8M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1980 Major Subject: Food Science and Technology CHARACTERISTICS OF CORN AND SORGHUM FOR TORTILLA PROCESSING A Thesis by MARIA DE JESUS GONZALEZ DE PALACIOS Approved as to style and content by: an o omm t em er em er ea o...

  15. Characteristics of corn and sorghum for tortilla processing

    E-Print Network [OSTI]

    Gonzalez de Palacios, Maria de Jesus

    1980-01-01T23:59:59.000Z

    CHARACTERISTICS OF CORN AND SORGHUM FOR TORTILLA PROCESSING A Thesis by MARIA DE JESUS GONZALEZ DE PALACIOS Submitted to the Graduate College of Texas A8M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1980 Major Subject: Food Science and Technology CHARACTERISTICS OF CORN AND SORGHUM FOR TORTILLA PROCESSING A Thesis by MARIA DE JESUS GONZALEZ DE PALACIOS Approved as to style and content by: an o omm t em er em er ea o...

  16. Identification of airfoil characteristics for optimum wind turbine performance / b

    E-Print Network [OSTI]

    Miller, Leonard Scott

    1983-01-01T23:59:59.000Z

    IDENTIFICATION OF AIRFOIL CHARACTERISTICS FOR OPTIMUM WIND TURBINE PERFORMANCE A Thesis by LEONARD SCOTT MILLER Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1983 Major Subject: Aerospace Engineering IDENTIFICATION OF AIRFOIL CHARACTERISTICS FOR OPTIMUM WIND TURBINE PERFORMANCE A Thesis by LEONARD SCOTT MILLER Approved as to Style and Content by: Dr. S. J. Miley (Chairm of Committee...

  17. Seismic Pulses Derivation from the Study of Source Signature Characteristics

    SciTech Connect (OSTI)

    Rahman, Syed Mustafizur; Nawawi, M. N. Mohd.; Saad, Rosli [School of Physics, Univeristi Sains Malaysia, 11800 USM, Pulau Pinang (Malaysia)

    2010-07-07T23:59:59.000Z

    This paper deals with a deterministic technique for the derivation of seismic pulses by the study of source characteristics. The spectral characteristics of the directly or the nearest detected seismic signal is analyzed and considered as the principle source signature. Using this signature seismic pulses are derived with accurate time position in the seismic traces. The technique is applied on both synthetic and field refraction seismic traces. In both cases it has estimated that the accurate time shifts along with amplitude coefficients.

  18. Mike Singleton 65.910 64.338 64.972 65.251Honda S2000 64.338 1616 53.272 Steve Singleton 75.347 73.033 74.939 70.716Honda S2000 70.716 5864 N2 58.553

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    AS Mike Singleton 65.910 64.338 64.972 65.251Honda S2000 64.338 1616 53.272 Steve Singleton 75.347 73.033 74.939 70.716Honda S2000 70.716 5864 N2 58.553 Class Average : 67.527 PAX Multiplier : .828 BS.808Scion xA 71.808 40661 1 55.795 Cory Toyama 82.421 77.158 76.448 75.498Honda Civic 75.498 5977 58

  19. First Year Sedimentological Characteristics and Morphological Evolution of an Artificial Berm at Fort Myers Beach, Florida

    E-Print Network [OSTI]

    US Army Corps of Engineers

    First Year Sedimentological Characteristics and Morphological Evolution of an Artificial Berm Methods and Data Analysis 29 Results and Discussion 34 Sedimentological Characteristics of the Artificial Project Area 45 Control Area Northwest of Berm 47 Discussion of Sedimentological Characteristics 49

  20. Measurement of physical characteristics of materials by ultrasonic methods

    DOE Patents [OSTI]

    Lu, W.Y.; Min, S.

    1998-09-08T23:59:59.000Z

    A method is described for determining and evaluating physical characteristics of a material. In particular, the present invention provides for determining and evaluating the anisotropic characteristics of materials, especially those resulting from such manufacturing processes as rolling, forming, extruding, drawing, forging, etc. In operation, a complex ultrasonic wave is created in the material of interest by any method. The wave form may be any combination of wave types and modes and is not limited to fundamental plate modes. The velocity of propagation of selected components which make up the complex ultrasonic wave are measured and evaluated to determine the physical characteristics of the material including, texture, strain/stress, grain size, crystal structure, etc. 14 figs.

  1. The characteristic stellar mass as a function of redshift

    E-Print Network [OSTI]

    Cathie J. Clarke; Volker Bromm

    2003-05-11T23:59:59.000Z

    We present a model for the star formation process during the initial collapse of dark matter haloes at redshifts z=0-30. We derive a simple expression for the characteristic stellar mass scale during this initial burst of star formation. In our picture, this characteristic scale reflects both the minimum temperature to which the gas can cool (determined by the metallicity and the temperature of the cosmic microwave background) and the pressure of overlying baryons in the collapsing halo. This prescription reproduces both the large mass scales found in simulations of Population III star formation and the near solar values observed for star formation at low redshift.

  2. Spectral Characteristic Evolution: A New Algorithm for Gravitational Wave Propagation

    E-Print Network [OSTI]

    Casey J. Handmer; Bla Szilgyi

    2014-09-24T23:59:59.000Z

    We present a spectral algorithm for solving the full nonlinear vacuum Einstein field equations in the Bondi framework. Developed within the Spectral Einstein Code (SpEC), we demonstrate spectral characteristic evolution as a technical precursor to Cauchy Characteristic Extraction (CCE), a rigorous method for obtaining gauge-invariant gravitational waveforms from existing and future astrophysical simulations. We demonstrate the new algorithm's stability, convergence, and agreement with existing evolution methods. We explain how an innovative spectral approach enables a two orders of magnitude improvement in computational efficiency.

  3. Comparison of pressure-saturation characteristics derived from computed tomography and lattice Boltzmann simulations

    E-Print Network [OSTI]

    Wildenschild, Dorthe

    Comparison of pressure-saturation characteristics derived from computed tomography and lattice), Comparison of pressure-saturation characteristics derived from computed tomography and lattice Boltzmann

  4. Characteristics of meteorological parameters associated with Hurricane Isabel

    E-Print Network [OSTI]

    Singh, Ramesh P.

    Characteristics of meteorological parameters associated with Hurricane Isabel R. Gautam, G. Cervone-sea interactions associated with Hurricane Isabel, which landed on the east coast of the United States on September 18, 2003. Hurricane Isabel is considered to be one of the most significant and severe tropical

  5. Radiation Characteristics of Tunable Graphennas in the Terahertz Band

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    ,chigrin}@uni-wuppertal.de, jmjornet@ece.gatech.edu, lemme@kth.se, eduard.alarcon@upc.edu Abstract. Graphene-enabled wireless nanosys- tems. Indeed, graphene-based plasmonic nano-antennas, or graphennas, just a few micrometers, the important role of the graphene con- ductivity in the characteristics of graphennas is analyzed

  6. Spectral background and transmission characteristics of fiber optic imaging bundles

    E-Print Network [OSTI]

    Gmitro, Arthur F.

    Spectral background and transmission characteristics of fiber optic imaging bundles Joshua Anthony August 2008 The emission and transmission properties of three commercially produced coherent fiber optic optical fibers are used in many imaging applications to allow the flexible relay of image planes over

  7. Characteristics of Aluminum Biosorption by Sargassum fluitans Biomass

    E-Print Network [OSTI]

    Volesky, Bohumil

    Characteristics of Aluminum Biosorption by Sargassum fluitans Biomass Hak Sung Lee1, * and Bohumil3A 2B2, Canada Abstract: Biomass of nonliving brown seaweed Sargassum fluitans pretreated.5. There are indications that the biomass hydroxyl groups were involved in sequestering the aluminum in the form

  8. Ris-R-1299(EN) Database on Wind Characteristics

    E-Print Network [OSTI]

    National Laboratory Kurt S. Hansen MEK, DTU Ris National Laboratory, Roskilde November 2001 #12;IEA Annex XVII, Database on Wind Characteristics - Structure and Philosophy Abstract The main objective of IEA R of IEA R&D Annex XVII falls in three separate parts. Part one deals with the overall structure

  9. Economic and Social Characteristics of Small Boat Fishing in the

    E-Print Network [OSTI]

    Mariana Islands Justin Hospital Courtney Beavers May 2014 Administrative Report H-14-02 #12;About(s). Administrative Reports may be cited as follows: Hospital, J., C. Beavers. May 2014. Economic and Social and Social Characteristics of Small Boat Fishing in the Commonwealth of the Northern Mariana Islands Justin

  10. STUDY OF RADIOACTIVE IMPURITIES IN SOLIDS PART ONE : RADIATION CHARACTERISTICS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    285 STUDY OF RADIOACTIVE IMPURITIES IN SOLIDS PART ONE : RADIATION CHARACTERISTICS F. HARTMANN problem of the emission of radiation by radioactive nuclei is usually treated in a very general form for the computation of relaxation and radiofrequency effects. LE JOURNAL DE PHYSIQUE TOME 33, F?VRIER-MARS 1972

  11. Isolation of stimulus characteristics contributing to Weber's law for position

    E-Print Network [OSTI]

    Nottingham, University of

    Isolation of stimulus characteristics contributing to Weber's law for position David Whitaker a transition between the scales that determine threshold results in the continuum known as Weber's law; Vernier acuity; Weber's law 1. Introduction The ability to accurately and veridically locate objects

  12. G 2 MANIFOLDS WITH PARALLEL CHARACTERISTIC TORSION THOMAS FRIEDRICH

    E-Print Network [OSTI]

    Friedrich, Thomas

    these spaces admit a metric connec tion # c with totally skewsymmetric torsion and a spinor field #1 solvingG 2 MANIFOLDS WITH PARALLEL CHARACTERISTIC TORSION THOMAS FRIEDRICH Abstract. We classify 7dimensional cocalibrated G2manifolds with parallel char acteristic torsion and nonabelian holonomy. All

  13. RESEARCH Open Access Pavement crack characteristic detection based

    E-Print Network [OSTI]

    Joensuu, University of

    RESEARCH Open Access Pavement crack characteristic detection based on sparse representation Xiaoming Sun1 , Jianping Huang1 , Wanyu Liu1* and Mantao Xu2 Abstract Pavement crack detection plays an important role in pavement maintaining and management. The three- dimensional (3D) pavement crack detection

  14. The GHS Attack in odd Characteristic March 24, 2003

    E-Print Network [OSTI]

    Diem, Claus

    The GHS Attack in odd Characteristic Claus Diem March 24, 2003 Abstract The GHS attack is originally an approach to attack the discrete- logarithm problem (DLP) in the group of rational points. In this article we give a generalization of the attack to degree 0 class groups of (hyper-)elliptic curves over

  15. EFFECTIVE TENSILE STRESS-STRAIN CHARACTERISTICS FOR REINFORCED CONCRETE

    E-Print Network [OSTI]

    EFFECTIVE TENSILE STRESS-STRAIN CHARACTERISTICS FOR REINFORCED CONCRETE L. Hwang, Graduate Student of reinforced concrete structures, the concrete continues to contribute to the effective stiffness of structures for reinforced concrete developed for analysis of reinforced and/or prestressed concrete structures. The model

  16. Demographic characteristics of southern flounder, Paralichthys lethostigma, harvested by an

    E-Print Network [OSTI]

    Scharf, Fred

    -level effects and negatively affect long-term fishery yield. K E Y W O R D S : age structure, fishing practices are captured in stationary gillnets and pound nets. Nearly all commercial harvest occurs in estuarine watersDemographic characteristics of southern flounder, Paralichthys lethostigma, harvested

  17. IT'S ABOUT TIME Characteristic times in biogeochemistry and climate

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    , and then It falls to earth: Can you tell me when? Decision making on energy and climate change #12;Impulse responseIT'S ABOUT TIME Characteristic times in biogeochemistry and climate Stephen E. Schwartz Symposium on biogeochemical cycling and climate In honor of Henning Rodhe on the occasion of his retirement from the chair

  18. Effect of core structure irradiation on the RBMK neutron characteristics

    SciTech Connect (OSTI)

    Balygin, A. A., E-mail: balyg@dcnr.vver.kiae.ru; Krayushkin, A. V. [National Research Center Kurchatov Institute (Russian Federation)

    2014-12-15T23:59:59.000Z

    The effect of changes in the graphite density and fuel channel diameters on the RBMK neutron characteristics is estimated. It is shown that uncertainty of those quantities can lead to a noticeable difference between the calculated and experimental values of the steam coefficient of reactivity and the subcriticality of the reactor.

  19. Tanh cascode cell amplifier an arbitrary transfer characteristics amplifier

    E-Print Network [OSTI]

    characteristic, which is highly desirable for analogue circuits such as power amplifiers, low-noise amplifiers technique that offers circuit designers more freedom to engineer various amplifiers TC to their needs but not the specific applications that would benefit from such capability. TCC amplifier: Fig. 2 shows the synthesis

  20. Influence of wind characteristics on turbine performance Ioannis Antoniou (1)

    E-Print Network [OSTI]

    Influence of wind characteristics on turbine performance Ioannis Antoniou (1) , Rozenn Wagner (1 (2) , Peder Enevoldsen (2) , Leo Thesbjerg (3) (1): Wind Energy Department, Ris): Siemens Wind Power (3): Vestas Wind Systems A/S Summary The uncertainty of power performance measurements

  1. VISCOSITY OF NEMATIC-CHIRAL MIXTURES AND THEIR ELECTROOPTICAL CHARACTERISTICS

    E-Print Network [OSTI]

    Boyer, Edmond

    VISCOSITY OF NEMATIC-CHIRAL MIXTURES AND THEIR ELECTROOPTICAL CHARACTERISTICS Z. M. ELASHVILI, M. D of Georgian SSR, Tbilisi 380086, S. Euli str. 5, USSR Abstract. -- We have measured the viscosity in mixtures that the increase of the viscosity at low additive concentration (Cm

  2. Institutional Scholarship Awards: The Role of Student and Institutional Characteristics

    E-Print Network [OSTI]

    Heller, Don

    Institutional Scholarship Awards: The Role of Student and Institutional Characteristics Paper analyzes data from the National Postsecondary Student Aid Study (NPSAS) to examine the awarding are those of the author alone. 2000, Donald E. Heller #12;Institutional Scholarship Awards: The Role

  3. INNOVATION IN AUTOMOTIVE TELEMATICS SERVICES: CHARACTERISTICS OF THE FIELD AND

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    INNOVATION IN AUTOMOTIVE TELEMATICS SERVICES: CHARACTERISTICS OF THE FIELD AND MANAGEMENT is a radical innovation for automotive industry. Therefore traditional design models, such as heavyweight, published in "Int. J. of Automotive Technology et Management 3, 1/2 (2003) 144-159" #12;2 communication

  4. Chaotic characteristics of corona discharges in atmospheric air

    SciTech Connect (OSTI)

    Tan Xiangyu; Zhang Qiaogen; Wang Xiuhuan; Sun Fu; Zha Wei; Jia Zhijie [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, 28 West Xianning Road, Xi'an 710049 (China)

    2008-11-15T23:59:59.000Z

    A point-plane electrode system in atmospheric air is established to investigate the mechanism of the corona discharge. By using this system, the current pulses of the corona discharges under the 50 Hz ac voltage are measured using partial discharge (PD) measurement instrument and constitute the point-plane voltage-current (V-I) characteristic equation together with the voltage. Then, this paper constructs the nonlinear circuit model and differential equations of the system in an attempt to give the underlying dynamic mechanism based on the nonlinear V-I characteristics of the point-plane corona discharges. The results show that the chaotic phenomenon is found in the corona circuit by the experimental study and nonlinear dynamic analysis. The basic dynamic characteristics, including the Lyapunov exponent, the existence of the strange attractors, and the equilibrium points, are also found and analyzed in the development process of the corona circuit. Moreover, the time series of the corona current pulses obtained in the experiment is used to demonstrate the chaotic characteristics of the corona current based on the nonlinear dynamic circuit theory and the experimental basis. It is pointed out that the corona phenomenon is not a purely stochastic phenomenon but a short term deterministic chaotic activity.

  5. accident characteristics: Topics by E-print Network

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

    accident characteristics First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 guia accidents BSICA ...

  6. The effect of bacterial inoculum on the qualitative characteristics, ruminal degradability and PDI

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    the fermentation characteristics (lower content of acetic and butyric acids, large increase in lactic acid

  7. Evolution of Cyclone Characteristics The composite evolution of west and east Atlantic cyclone is likely to

    E-Print Network [OSTI]

    Dacre, Helen

    Evolution of Cyclone Characteristics The composite evolution of west and east Atlantic cyclone. The spatial distribution and evolution characteristics of North Atlantic cyclones. Mon. Wea. Rev. 137, 99 characteristics and the evolution of these characteristics are calculated in composite cyclones. Method Cyclones

  8. U N I V E R S I T Y O F R O C H E S T E R , O N E U N I V E R S I T Y --O N E P L A N 2 0 0 8 C A M P U S M A S T E R P L A N

    E-Print Network [OSTI]

    Portman, Douglas

    U N I V E R S I T Y O F R O C H E S T E R , O N E U N I V E R S I T Y -- O N E P L A N 2 0 0 8 C A M P U S M A S T E R P L A N E x e c u t i v e S u m m a r y #12;U N I V E R S I T Y O F R O C H E S T E R , O N E U N I V E R S I T Y -- O N E P L A N Copyright 2008 AYERS | SAINT | GROSS All Rights

  9. Optical characteristics of a HgBr excilamp

    SciTech Connect (OSTI)

    Malinina, A A; Malinin, A N; Shuaibov, A K [Uzhgorod National University, Uzhgorod (Ukraine)

    2013-08-31T23:59:59.000Z

    Optical characteristics of a coaxial HgBr excilamp on multicomponent mercury dibromide vapour mixtures with helium, nitrogen and sulfur hexafluoride are investigated under pumping by a pulse-periodic barrier discharge. Stable excilamp operation was demonstrated at a pump pulse repetition rate of 3 9 kHz. The component composition of the working system was determined, which provides a maximal average and pulsed specific radiation power of 48.8 mW cm{sup -3} and 40.6 W cm{sup -3}, respectively, at the efficiency of 7.3 % in the blue-green spectral range with the maximal radiation intensity at the wavelength of 502 nm. The reduction in the radiation power after 2.5 10{sup 6} shots is 5 %. Interpretation is given for the results of optimisation of excilamp characteristics. (optical radiation sources)

  10. Strategies for the characteristic extraction of gravitational waveforms

    SciTech Connect (OSTI)

    Babiuc, M. C. [Department of Physics, Marshall University, Huntington, West Virginia 25755 (United States); Bishop, N. T. [Department of Mathematical Sciences, University of South Africa, Unisa 0003 (South Africa); Szilagyi, B. [Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, 14476 Golm (Germany); Theoretical Astrophysics, California Institute of Technology, Pasadena, California 91125 (United States); Winicour, J. [Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, 14476 Golm (Germany); Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)

    2009-04-15T23:59:59.000Z

    We develop, test, and compare new numerical and geometrical methods for improving the accuracy of extracting waveforms using characteristic evolution. The new numerical method involves use of circular boundaries to the stereographic grid patches which cover the spherical cross sections of the outgoing null cones. We show how an angular version of numerical dissipation can be introduced into the characteristic code to damp the high frequency error arising form the irregular way the circular patch boundary cuts through the grid. The new geometric method involves use of the Weyl tensor component {psi}{sub 4} to extract the waveform as opposed to the original approach via the Bondi news function. We develop the necessary analytic and computational formula to compute the O(1/r) radiative part of {psi}{sub 4} in terms of a conformally compactified treatment of null infinity. These methods are compared and calibrated in test problems based upon linearized waves.

  11. Design characteristics for facilities which process hazardous particulate

    SciTech Connect (OSTI)

    Abeln, S.P.; Creek, K.; Salisbury, S.

    1998-12-01T23:59:59.000Z

    Los Alamos National Laboratory is establishing a research and processing capability for beryllium. The unique properties of beryllium, including light weight, rigidity, thermal conductivity, heat capacity, and nuclear properties make it critical to a number of US defense and aerospace programs. Concomitant with the unique engineering properties are the health hazards associated with processing beryllium in a particulate form and the potential for worker inhalation of aerosolized beryllium. Beryllium has the lowest airborne standard for worker protection compared to all other nonradioactive metals by more than an order of magnitude. This paper describes the design characteristics of the new beryllium facility at Los Alamos as they relate to protection of the workforce. Design characteristics to be reviewed include; facility layout, support systems to minimize aerosol exposure and spread, and detailed review of the ventilation system design for general room air cleanliness and extraction of particulate at the source.

  12. Angular characteristics of a multimode fiber surface plasmon resonance sensor

    E-Print Network [OSTI]

    Tan, Zhixin; Li, Xuejin; Chen, Yuzhi; Hong, Xueming; Fan, Ping

    2015-01-01T23:59:59.000Z

    In this paper the angular characteristics of a multimode fiber SPR sensor are investigated theoretically. By separating the contributions of beams incident at different angles, a compact model is presented to predict the shift of the resonance wavelength with respect to the angle and the environmental refractive index. The result suggests that the performance of conventional fiber SPR sensors can be substantially improved by optimizing the incident angle.

  13. Energy dissipation characteristics of rubber crash cushion elements

    E-Print Network [OSTI]

    Thompson, Michael Fowlkes

    1988-01-01T23:59:59.000Z

    Abbreviation ~S1 1. Natural Rubber NR Regal Inter- national, Inc, Natural Rubber/ Butadiene Natural Rubber/ Ethylene-Propylene Natural Rubber/ Butyl Butyl Natural Rubber/ 204 Ethylene-Prop. Neoprene NR/BD NR/E PDM NR/ BU BU NR/20'EPDM NEO... OF SCIENCE December 1988 Major Subject: Civil Engineering ENERGY DISSIPATION CHARACTERISTICS OF RUBBER CRASH CUSHION ELEMENTS A Thesis by MICHAEL FOWLKES THOMPSON Approved as to style and content by: Paul N. Roschke (Chair of Committee) Hayes E. Ros...

  14. Effects of pavement surface characteristics and textures on skid resistance

    E-Print Network [OSTI]

    Tomita, Hisao

    1970-01-01T23:59:59.000Z

    the relationship between the rate of decrea e in skid number caused by an increase in the sl idding speed and the total void 'area at the tire tread- pavemsnt interface, and (2) to determine the relationships between skid numbers and small-scale pa. vemcnt... textures combined with macro- texture parameters. Tire-pavement friction characteristics under various operating modes of the tire, field methods of measuring friction coefficients, nnd methods of measuring surface textures from the literature search...

  15. Morphological characteristics in relation to seed deterioration in sorghum

    E-Print Network [OSTI]

    Ellis, Eugene Bailey

    1972-01-01T23:59:59.000Z

    background, maturity, and disease on seed deterioration was investigated in relation to the above morpholog- ical characteristics. Standard germination tests were conducted on seed harvested at three stages of maturity and on seed from the first... and second har- vests that had been artificially aged for five days at 45 C and 100/ relative humidity. A cold soil emergence test also was con- ducted on the seed from the first and second harvests. The percent of seed infected with fungi was determined...

  16. Controllable nonlinear refraction characteristics in hydrogenated nanocrystalline silicon

    SciTech Connect (OSTI)

    Zheng, D. Q.; Ye, Q. H.; Shen, W. Z., E-mail: wzshen@sjtu.edu.cn [Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, and Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Department of Physics and Astronomy, and Institute of Solar Energy, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240 (China); Su, W. A. [Faculty of Science, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou, Jiangxi 341000 (China)

    2014-02-07T23:59:59.000Z

    Nonlinear refraction (NLR) of hydrogenated nanocrystalline silicon (nc-Si:H) has been investigated through the close aperture Z-scan method. We demonstrate a significant NLR and a unique feature of controllable NLR characteristics between saturable and Kerr NLR with the incident photon energy. We numerically evaluate the proportion of these two mechanisms in different wavelengths by a modified NLR equation. The band tail of nc-Si:H appears to play a crucial role in such NLR responses.

  17. Power Signatures as Characteristics of Commercial and Related Buildings

    E-Print Network [OSTI]

    MacDonald, M.

    1988-01-01T23:59:59.000Z

    at many levels? Readers interested in collecting energy data for commercial buildings should consider this classification scheme as a starting point for or- ganizing data on physical characteristics to assist in making comparisons between buildings... aimed at providing equivalent information, and power signa- tures extend component analysis to allow comparisons of dif- ferent time steps. For both component analysis and power signatures (or other methods), development of an under- standing...

  18. Characteristics of rural bank acquisitions: a logit analysis

    E-Print Network [OSTI]

    Applewhite, Jennifer Lynn

    1994-01-01T23:59:59.000Z

    interstate acquisition of their banks, the rate of acquisitions soared. In 1978, Maine enacted legislation permitting interstate banking on a reciprocal basis. Until mid-1982, Maine was the only state with such a law. In 1982, both New York and Alaska... of U. S. banks using comparative performance profiles and logit analysis. Characteristics of acquired and acquiring banks are compared for five years before the acquisitions and found to have significantly different rates of return on assets...

  19. Characteristics of the cecal microflora during colic in the equine

    E-Print Network [OSTI]

    Goode, Richard Lynn

    1972-01-01T23:59:59.000Z

    there is increased time for fermentation resulting in the production of excess gases and toxins, as well as a greater opportunity for absorption. The cycle continues with one consequence stimulating another repeatedly and the animal becoming more depressed... by the ventral colon, and the least cellulose digestion in the lower intestine occurred in the dorsal colon. Even though it is established that the horse depends on a fermentation type of digestion, little work has been done defining characteristics...

  20. Identification of airfoil characteristics for optimum wind turbine performance / b

    E-Print Network [OSTI]

    Miller, Leonard Scott

    1983-01-01T23:59:59.000Z

    with a performance optimization routine was used to perform the analyses. The relationship between airfoil lift and drag characteristics and turbine performance was determined and discussed. High lift and low drag was found to improve, respectively..., the low and high tip speed ratio power output of the tur bine. An investigation using the NACA 63 series family showed that airfoils with 12 to 15 percent thickness should generate good performance over a broad range of tip speed ratios. iv...

  1. Role of site characteristics in coal gasification. [Hanna, Wyoming

    SciTech Connect (OSTI)

    Bader, B.E.; Glass, R.E.

    1981-12-01T23:59:59.000Z

    Field test data for a series of four underground coal gasification tests (UCG) at a site near Hanna, Wyoming are presented. Results of these field tests were combined with modeling efforts to identify site selective parameters broadly identified as the flow and mechanical properties of a coal seam that can help determine the degree to which any UCG test would be successful. Specifically, the characteristics shown to be important are concluded to be: (1) permeability structure and mobile water, which play a crucial role in determining air flow paths; (2) high permeability zones at midstream and above to act as the primary air flow path; (3) spacing of injection and production wells can be varied to enhance the chance of keeping the air flow paths low in the coal seam; (4) completion of the process wells in a manner that minimizes neighboring permeability inhibits the chance of override; (5) the orthotropic permeability of coal improve UCG results; (6) thermochemical properties of coal are important with respect to the manner of combustion front propogation; and (7) heating will result in stress dependent anisotropic strength characteristics of the coal. Other properties characteristic of a given coal, petrographic constitutents of a coal, chemistry of combustion and the in situ stress distribution are also pointed out as significant factors to be considered in the most efficient use of UCG technique. 14 references, (BLM)

  2. Revue Europenne des Migrations Internationales Volume 8 n2,

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    enfants migrants se traitent d' arabe dans une classe primaire Pierre ACHARD, Gabrielle VARRO, Franois

  3. VOL. 26, N 2, 2007 ISSN 0253-6730

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    mammifres des Balkans. Les niveaux les plus anciens de la squence correspondent au dbut du Plistocne of some taxa of this subfamily were considered in comparison with the main sites of western and eastern of the fundamental biostratigraphic stakes for the large mammals of the Balkans. The older levels are correlated

  4. 1 function fe2d_n 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    E-Print Network [OSTI]

    Garvie, Marcus R

    _ki = triangle_area*s1/(h3*h1); 98 K_ik = K_ki; 99 K_kj = triangle_area*s2/(h3*h2); 100 K_jk = K_kj; 101 K

  5. 1 function fe2dx_n 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    E-Print Network [OSTI]

    Garvie, Marcus R

    _ki = triangle_area*s1/(h3*h1); 98 K_ik = K_ki; 99 K_kj = triangle_area*s2/(h3*h2); 100 K_jk = K_kj; 101 K

  6. Aspects of Four Dimensional N = 2 Field Theory

    E-Print Network [OSTI]

    Xie, Dan

    2011-07-11T23:59:59.000Z

    hypermulti- plets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 22 Left: (p, q)-web realizing the TN theory, with aligned 7-branes. Right: Quiver diagram of the mirror of TN , with gauge groups U(r). The group at the center... gauge groups are U(r). . . 137 xiii FIGURE Page 25 Top: We take two copies of TN and gauge together two SU(N) Higgs symmetries. Bottom: Its mirror. We gauge together two SU(N) Coulomb symmetries. This ends up eliminating the two T[SU(N)] tails. Here...

  7. SSQ V3 N2_Final_13aug13.indd

    National Nuclear Security Administration (NNSA)

    to become the world's first teraflop supercomputer (a teraflop represents one trillion mathematical operations per second.) (b) Raj Hazra of Intel is holding a 1 TF chip in...

  8. Aspects of Four Dimensional N = 2 Field Theory

    E-Print Network [OSTI]

    Xie, Dan

    2011-07-11T23:59:59.000Z

    The Coulomb branch of pure SU(2) gauge theory. There is an auxiliary torus attached at each point. Two singularities appear in the strongly coupled region. There is a circle goes through the singularities representing the marginal stability wall across...) 5-branes; here N = 3. In the figure the D5?s are semi-infinite, while NS5?s and (1, 1) 5-branes terminate each on a 7-brane ? of the same type. The Coulomb branch of the 5d low energy theory is not sensitive to this difference...

  9. N2 Spirit of Management | -Chaire KBL HEC-ULg|

    E-Print Network [OSTI]

    Lige, Universit de

    social responsibility, were formalized at the 2007 Global Compact Leaders Summit held in Geneva last July

  10. SSQ V1 N2_6june11_FINAL

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2ARequest forMod0/%2A enFY12

  11. SSQ V3 N2_Final_13aug13.indd

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andBHoneywell9/%2ARequest forMod0/%2A2 *

  12. ELECTROSTATIC (LANGMUIR) PROBE MEASUREMENTS IN RF DRIVEN He, N2, BCl3, AND BCl3/N2 PLASMAS

    E-Print Network [OSTI]

    Pathak, Bogdan Amaru

    2008-08-01T23:59:59.000Z

    with similar kT e and N e values or using similar etching chemistries. 5 1.3. Plasma Chemistry?Reactive, Inert, and Inhibiting Species Previous work in the University of Kansas Plasma Research Laboratory (KU PRL or KU Plasma Research Lab) has focused...

  13. Observation of a stripping threshold for the reaction N2 ^++CH4?N2H^++CH3

    E-Print Network [OSTI]

    Wyatt, J. R.; Strattan, L. W.; Snyder, S. C.; Hierl, Peter M.

    1976-01-01T23:59:59.000Z

    to possess a threshold at 0.1 eV. At the higher energies there is a large isotope effect favoring abstraction of H over D. The product velocity vector distribution is strongly peaked forward of the center of mass, indicating that the reaction is predominantly...

  14. Molecular Simulation Studies of Separation of CO2/N2, CO2/CH4, and CH4/N2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenterDioxide CaptureSee the Foundry's full equipmentby ZIFs

  15. July 1, 1994 / Vol. 19, No. 13 / OPTICS LETTERS 975 Characteristics of a femtosecondtransform-limited

    E-Print Network [OSTI]

    , 1994 Using an SF6 glass plate as the intracavity Kerr medium and a double-prismpair for dispersion-locked dye lasers. We use SF6 glass as the Kerr medium (n2 = 2.3 x 10-19 m2 /W),7 which has practically for the 100-,gm Rhodamine 590 (R6G) gain jet, one for the 30-,umTCVEBI absorber jet, and one for the 5-mm SF6

  16. Characteristics and development report for the MC3573 thermal battery

    SciTech Connect (OSTI)

    Street, H.K.

    1983-02-01T23:59:59.000Z

    This report describes the design intent, product characteristics, and development history of the MC3573 high-current, electrically activated thermal battery. This battery is required to operate five to six times longer than the usual weapon system power battery. The MC3573 employs the Li(Si)/LiCl.KCl/FeS/sub 2/ electrochemical system. The battery is a right-circular cylinder with attached mounting brackets. It measures 122.1 mm in length, 88.9 mm in diameter, and stands 96.2 mm high. The battery is the power supply for the W81 and W85 JTA telemetry systems.

  17. Dynamical switching characteristics of a bistable injection laser

    SciTech Connect (OSTI)

    Lau, K.Y.; Harder, C.; Yariv, A.

    1982-02-01T23:59:59.000Z

    The switching characteristics of a bistable injection laser with very large hysteresis is examined. Switch-on delays are shown to exhibit a ''critical'' part and a ''noncritical'' part, both of which can be reduced by increasing the overdrive current. It is possible to obtain fairly fast switching time (<20 ns) with a strong overdrive. Nominal delays of 100--200 ns result under moderate overdrives. These long time scales are due to long carrier lifetimes in the carrier-depleted absorption section, a property intrinsic to these bistable injection lasers.

  18. Optical Absorption Characteristics of Silicon Nanowires for Photovoltaic Applications

    E-Print Network [OSTI]

    Parkash, Vidur

    2010-01-01T23:59:59.000Z

    Solar cells have generated a lot of interest as a potential source of clean renewable energy for the future. However a big bottleneck in wide scale deployment of these energy sources remain the low efficiency of these conversion devices. Recently the use of nanostructures and the strategy of quantum confinement have been as a general approach towards better charge carrier generation and capture. In this article we have presented calculations on the optical characteristics of nanowires made out of Silicon. Our calculations show these nanowires form excellent optoelectronic materials and may yield efficient photovoltaic devices.

  19. Optical system for determining physical characteristics of a solar cell

    DOE Patents [OSTI]

    Sopori, Bhushan L. (Denver, CO)

    2001-01-01T23:59:59.000Z

    The invention provides an improved optical system for determining the physical characteristics of a solar cell. The system comprises a lamp means for projecting light in a wide solid-angle onto the surface of the cell; a chamber for receiving the light through an entrance port, the chamber having an interior light absorbing spherical surface, an exit port for receiving a beam of light reflected substantially normal to the cell, a cell support, and an lower aperture for releasing light into a light absorbing baffle; a means for dispersing the reflection into monochromatic components; a means for detecting an intensity of the components; and a means for reporting the determination.

  20. Seed Production Characteristics of Some Introduced Warm-Season Grasses.

    E-Print Network [OSTI]

    Holt, Ethan C.

    1965-01-01T23:59:59.000Z

    -63 Forage production1 Ssed production2 1961 1962 1963 Accession or variety Species 1961 1962 1963 Percent Percent ~eave.' pounds Pounds seed Pounds Pretoria 90 Dicanthium annulatum 3.4 1.5 2.6 27.1 90 8 4 2 11.7 70 Medio Dicanthium caricosum .9 .6 1... production characteristics, ;Ire numerous members of the introtluced bluestems, ey)e(i;~lly members of the Dicnnthizlm complex. Some nl (llcse include Medio, Pretoria 90, Angleton and li1ebe1.g bluestems. Kleingrass, Panicum coloratum, i5 anotller...

  1. Characteristic Lyapunov vectors in chaotic time-delayed systems

    E-Print Network [OSTI]

    Diego Paz; Juan M. Lpez

    2011-01-14T23:59:59.000Z

    We compute Lyapunov vectors (LVs) corresponding to the largest Lyapunov exponents in delay-differential equations with large time delay. We find that characteristic LVs, and backward (Gram-Schmidt) LVs, exhibit long-range correlations, identical to those already observed in dissipative extended systems. In addition we give numerical and theoretical support to the hypothesis that the main LV belongs, under a suitable transformation, to the universality class of the Kardar-Parisi-Zhang equation. These facts indicate that in the large delay limit (an important class of) delayed equations behave exactly as dissipative systems with spatiotemporal chaos.

  2. Phantom Friedmann Cosmologies and Higher-Order Characteristics of Expansion

    E-Print Network [OSTI]

    Mariusz P. Dabrowski; Tomasz Stachowiak

    2005-11-25T23:59:59.000Z

    We discuss a more general class of phantom ($p -1$) matter. We show that many types of evolution which include both Big-Bang and Big-Rip singularities are admitted and give explicit examples. Among some interesting models, there exist non-singular oscillating (or "bounce") cosmologies, which appear due to a competition between positive and negative pressure of variety of matter content. From the point of view of the current observations the most interesting cosmologies are the ones which start with a Big-Bang and terminate at a Big-Rip. A related consequence of having a possibility of two types of singularities is that there exists an unstable static universe approached by the two asymptotic models - one of them reaches Big-Bang, and another reaches Big-Rip. We also give explicit relations between density parameters $\\Omega$ and the dynamical characteristics for these generalized phantom models, including higher-order observational characteristics such as jerk and "kerk". Finally, we discuss the observational quantities such as luminosity distance, angular diameter, and source counts, both in series expansion and explicitly, for phantom models. Our series expansion formulas for the luminosity distance and the apparent magnitude go as far as to the fourth-order in redshift $z$ term, which includes explicitly not only the jerk, but also the "kerk" (or "snap") which may serve as an indicator of the curvature of the universe.

  3. A review of dynamic characteristics of magnetically levitated vehicle systems

    SciTech Connect (OSTI)

    Cai, Y.; Chen, S.S.

    1995-11-01T23:59:59.000Z

    The dynamic response of magnetically levitated (maglev) ground transportation systems has important consequences for safety and ride quality, guideway design, and system costs. Ride quality is determined by vehicle response and by environmental factors such as humidity and noise. The dynamic response of the vehicles is the key element in determining ride quality, while vehicle stability is an important safety-related element. To design a guideway that provides acceptable ride quality in the stable region, vehicle dynamics must be understood. Furthermore, the trade-off between guideway smoothness and levitation and control systems must be considered if maglev systems are to be economically feasible. The link between the guideway and the other maglev components is vehicle dynamics. For a commercial maglev system, vehicle dynamics must be analyzed and tested in detail. This report, which reviews various aspects of the dynamic characteristics, experiments and analysis, and design guidelines for maglev systems, discusses vehicle stability, motion dependent magnetic force components, guideway characteristics, vehicle/ guideway interaction, ride quality, suspension control laws, aerodynamic loads and other excitations, and research needs.

  4. Mechanical properties and energy absorption characteristics of a polyurethane foam

    SciTech Connect (OSTI)

    Goods, S.H.; Neuschwanger, C.L.; Henderson, C.; Skala, D.M.

    1997-03-01T23:59:59.000Z

    Tension, compression and impact properties of a polyurethane encapsulant foam have been measured as a function of foam density. Significant differences in the behavior of the foam were observed depending on the mode of testing. Over the range of densities examined, both the modulus and the elastic collapse stress of the foam exhibited power-law dependencies with respect to density. The power-law relationship for the modulus was the same for both tension and compression testing and is explained in terms of the elastic compliance of the cellular structure of the foam using a simple geometric model. Euler buckling is used to rationalize the density dependence of the collapse stress. Neither tension nor compression testing yielded realistic measurements of energy absorption (toughness). In the former case, the energy absorption characteristics of the foam were severely limited due to the inherent lack of tensile ductility. In the latter case, the absence of a failure mechanism led to arbitrary measures of energy absorption that were not indicative of true material properties. Only impact testing revealed an intrinsic limitation in the toughness characteristics of the material with respect to foam density. The results suggest that dynamic testing should be used when assessing the shock mitigating qualities of a foam.

  5. Kinetic Modeling of Combustion Characteristics of Real Biodiesel Fuels

    SciTech Connect (OSTI)

    Naik, C V; Westbrook, C K

    2009-04-08T23:59:59.000Z

    Biodiesel fuels are of much interest today either for replacing or blending with conventional fuels for automotive applications. Predicting engine effects of using biodiesel fuel requires accurate understanding of the combustion characteristics of the fuel, which can be acquired through analysis using reliable detailed reaction mechanisms. Unlike gasoline or diesel that consists of hundreds of chemical compounds, biodiesel fuels contain only a limited number of compounds. Over 90% of the biodiesel fraction is composed of 5 unique long-chain C{sub 18} and C{sub 16} saturated and unsaturated methyl esters. This makes modeling of real biodiesel fuel possible without the need for a fuel surrogate. To this end, a detailed chemical kinetic mechanism has been developed for determining the combustion characteristics of a pure biodiesel (B100) fuel, applicable from low- to high-temperature oxidation regimes. This model has been built based on reaction rate rules established in previous studies at Lawrence Livermore National Laboratory. Computed results are compared with the few fundamental experimental data that exist for biodiesel fuel and its components. In addition, computed results have been compared with experimental data for other long-chain hydrocarbons that are similar in structure to the biodiesel components.

  6. A simulation model for generation of aquifer characteristics and contaminant concentrations

    E-Print Network [OSTI]

    Deena, Jayaram

    1993-01-01T23:59:59.000Z

    simulation model was developed to generate aquifer characteristics such as hydraulic conductivity, porosity and organic carbon content. The variability of aquifer characteristics is represented by the fields generated using the simulation model. Random...

  7. NANO EXPRESS A Study on Field Emission Characteristics of Planar Graphene

    E-Print Network [OSTI]

    Yang, Eui-Hyeok

    NANO EXPRESS A Study on Field Emission Characteristics of Planar Graphene Layers Obtained from on field emission characteristics of individual graphene layers for vacuum nanoelectronics. Graphene layers enabled electric con- nection with the graphene layers without postfabrication. The maximum emitted

  8. Freight Distribution Tours in Congested Urban Areas: Characteristics and Implications for Carriers' Operations and

    E-Print Network [OSTI]

    Bertini, Robert L.

    trip generation, distribution, or network assignment are scant or nonexistent [1]. ConfidentialityFreight Distribution Tours in Congested Urban Areas: Characteristics and Implications for Carriers;FREIGHT DISTRIBUTION TOURS IN CONGESTED URBAN AREAS: CHARACTERISTICS AND IMPLICATIONS FOR CARRIERS

  9. Lightning location characteristics and vertical structure analysis of isolated storm cells in the TOGA COARE region

    E-Print Network [OSTI]

    Barnaby, Stephen Andrew

    1995-01-01T23:59:59.000Z

    producing storm cells, and non-lightning producing cells over the tropical oceans. The characteristics of lightning locations with respect to radar reflectivity were also examined. Lightning characteristics of flashes associated with TOGA COARE storm cells...

  10. Literature Review of Airflow Fluid Characteristics and their Impact on Human Thermal Comfort

    E-Print Network [OSTI]

    Zhao, R.; Zhang, Y.; Yu, N.; Di, H.

    2006-01-01T23:59:59.000Z

    . The fluctuant characteristics of natural wind and mechanical wind are obviously different. However, the fluctuant characteristics of mechanical wind can shift to those of natural wind in some conditions. With the development of turbulence statistical theory...

  11. Activation analysis and characteristics of the European community water cooled ceramic breeder blanket design proposal for ITER

    SciTech Connect (OSTI)

    Petrizzi, L.; Rado, V. [ENEA-ERG-FUS, Frascati (Italy); Cepraga, D.G. [ENEA-INN-FIS, Bologna (Italy)

    1994-12-31T23:59:59.000Z

    The European Community (EC) Home Team has proposed various alternative blanket designs to the basic concept (essentially integrated first wall, cooled by liquid metal, with structures made by vanadium alloys). One of the EC proposal is the Water Cooled Ceramic Blanket developed on the basis of a common action between NET and ENEA. It is based on a more conservative approach, but involving well proven technologies and qualified materials: SS-316L as structural material, Li{sub 2}ZrO{sub 3} as first breeder material choice (50% Li{sup 6} enrichment) and low temperature water coolant (160/200{degrees}C). Beryllium has been chosen as multiplying material. The nominal performance are: 1 MW/m{sup 2} as average neutron wall load, corresponding to 1.5 GW fusion power, 1 MW-y/m{sup 2} beneath it has been proved to withstand power excursion till 5 GW. The proposed blanket concept is based on a Breeder Inside Tube (BIT) type technology, with poloidal breeding elements, each one consisting of two concentric tubes. Breeder pebbles are filled into the inner tube, the water coolant flows in the annular channel between the two tubes. Beryllium pebbles fill the space of the blanket box outside the outer tube. A helium purge gas flows through the breeder pebbles bed for tritium recovery. Alternative operating water temperature and pressure are proposed, considering also batch tritium recovery.

  12. Distribution and Characteristics of Dentists Licensed to Practice in California, 2008

    E-Print Network [OSTI]

    Nicholson, Gina; Pourat, Nadereh

    2009-01-01T23:59:59.000Z

    Fact Sheet June 2009 Distribution and Characteristics ofADA Survey Center. Distribution of Dentists in the United

  13. OBSERVATION OF FLOW CHARACTERISTICS IN A MODEL I.C. ENGINE CYLINDER

    E-Print Network [OSTI]

    Ishikawa, N.

    2011-01-01T23:59:59.000Z

    Characteristics in an Internal Combustion Engine Cylinder,lIWalls of an Internal Combustion Engine," Sixth Symposium (

  14. Simulation of the frequency dispersion of effective dielectric characteristics of composite materials

    SciTech Connect (OSTI)

    Yakovlev, V. B.; Bardushkin, V. V.; Lavrov, I. V., E-mail: iglavr@mail.ru; Yakovleva, E. N. [National Research University of Electronic Technology (MIET) (Russian Federation)

    2014-12-15T23:59:59.000Z

    The problems of calculating the effective dielectric characteristics of polycrystalline materials are considered taking into account the frequency dependence of the characteristics of individual components. The effective characteristics of ceramics such as lead zirconate-titanate with titanium and zirconium oxide, metal lead, and water inclusions are calculated in the Maxwell-Garnett and Bruggeman approximations. The dependences of the effective dielectric characteristics on the inclusion concentration and applied electromagnetic-field frequency are obtained.

  15. The desorption purge time and thermal stability of 1,3-butadiene in a charcoal sampling tube

    E-Print Network [OSTI]

    Xie, Jianghua

    1997-01-01T23:59:59.000Z

    INTRODUCTION 1, 3-butadiene is a widely used monomer in the production of rubber, latex, butadiene polymers, and ABS resins. Since it exhibits low acute inhalation toxicity, there was an extended debate prior to the decision to lower the Occupational Safety... and Health Administration (OSHA) eight-hour time-weighted average (TWA) of 1000 ppm permissible exposure level (PEL). ' However, after years of toxicity studies, 1, 3-butadiene has been found to be associated with an increased risk of leukemia, lung tumors...

  16. 1995 solid waste 30-year characteristics volume summary

    SciTech Connect (OSTI)

    Templeton, K.J.; DeForest, T.J.; Rice, G.I. [Pacific Northwest Lab., Richland, WA (United States); Valero, O.J. [Westinghouse Hanford Co., Richland, WA (United States)

    1995-10-01T23:59:59.000Z

    The Hanford Site has been designated by the US Department of Energy (DOE) to store, treat, and dispose of solid waste received from both onsite and offsite generators. This waste is currently or planned to be generated from ongoing operations, maintenance and deactivation activities, decontamination and decommissioning (D&D) of facilities, and environmental restoration (ER) activities. This document, prepared by Pacific Northwest Laboratory (PNL) under the direction of Westinghouse Hanford Company (WHC), describes the characteristics of the waste to be shipped to Hanford`s SWOC. The physical waste forms and hazardous constituents are described for the low-level mixed waste (LLMW) and the transuranic - transuranic mixed waste (TW{underscore}TRUM).

  17. Characteristics of mercury desorption from sorbents at elevated temperatures

    SciTech Connect (OSTI)

    Ho, T.C.; Yang, P.; Kuo, T.H.; Hopper, J.R. [Lamar Univ., Beaumont, TX (United States). Dept. of Chemical Engineering] [Lamar Univ., Beaumont, TX (United States). Dept. of Chemical Engineering

    1998-12-31T23:59:59.000Z

    This study investigated the dynamic desorption characteristics of mercury during the thermal treatment of mercury-loaded sorbents at elevated temperatures under fixed-bed operations. Experiments were carried out in a 25.4 mm ID quartz bed enclosed in an electric furnace. Elemental mercury and mercuric chloride were tested with activated carbon and bauxite. The experimental results indicated that mercury desorption from sorbents was strongly affected by the desorption temperature and the mercury-sorbent pair. Elemental mercury was observed to desorb faster than mercuric chloride and activated carbon appeared to have higher desorption limits than bauxite at low temperatures. A kinetic model considering the mechanisms of surface equilibrium, pore diffusion and external mass transfer was proposed to simulate the observed desorption profiles. The model was found to describe reasonably well the experimental results.

  18. Dependence of plasma characteristics on dc magnetron sputter parameters

    SciTech Connect (OSTI)

    Wu, S.Z. [Recording Media Operation, Seagate Technology, 47010 Kato Road, Fremont, California 94538 (United States)

    2005-10-15T23:59:59.000Z

    Plasma discharge characteristics of a dc magnetron system were measured by a single Langmuir probe at the center axis of the dual-side process chamber. Plasma potential, floating potential, electron and ion densities, and electron temperature were extracted with varying dc power and gas pressure during sputter deposition of a metal target; strong correlations were shown between these plasma parameters and the sputter parameters. The electron density was controlled mostly by secondary electron generation in constant power mode, while plasma potential reflects the confinement space variation due to change of discharge voltage. When discharge pressure was varied, plasma density increases with the increased amount of free stock molecules, while electron temperature inversely decreased, due to energy-loss collision events. In low-pressure discharges, the electron energy distribution function measurements show more distinctive bi-Maxwellian distribution, with the fast electron temperature gradually decreases with increased gas pressure.

  19. Distributed utility technology cost, performance, and environmental characteristics

    SciTech Connect (OSTI)

    Wan, Y.; Adelman, S.

    1995-06-01T23:59:59.000Z

    Distributed Utility (DU) is an emerging concept in which modular generation and storage technologies sited near customer loads in distribution systems and specifically targeted demand-side management programs are used to supplement conventional central station generation plants to meet customer energy service needs. Research has shown that implementation of the DU concept could provide substantial benefits to utilities. This report summarizes the cost, performance, and environmental and siting characteristics of existing and emerging modular generation and storage technologies that are applicable under the DU concept. It is intended to be a practical reference guide for utility planners and engineers seeking information on DU technology options. This work was funded by the Office of Utility Technologies of the US Department of Energy.

  20. The electrical and lumen output characteristics of an RF lamp

    SciTech Connect (OSTI)

    Alexandrovich, B.M.; Godyak, V.A.; Piejak, R.B. [Osram Sylvania Inc., Beverly, MA (United States)

    1996-12-31T23:59:59.000Z

    Low pressure rf discharges have been studied for over a century. Their first practical application for lighting was proposed by Tesla in 1891. Since then hundreds of patents have been published attempting to implement rf lighting. However, progress in understanding rf discharge phenomena (mostly driven by plasma processing needs) and dramatic improvement in the performance/cost ratio of rf power sources have recently opened the door for development of rf light sources. Today commercial inductively coupled electrodeless lamps are offered by Matsuhita, Philips and GE. In this work the authors present measurements of the electrical characteristics and lumen output from a 2.65 MHz driven inductively coupled light source. Measurements were made on a spherical lamp of 3.125 inch diameter with a re-entrant cavity that houses a cylindrical ferrite core around which is wrapped the primary coil.

  1. Characteristics of Sn segregation in Ge/GeSn heterostructures

    SciTech Connect (OSTI)

    Li, H.; Chang, C.; Chen, T. P.; Cheng, H. H., E-mail: hhcheng@ntu.edu.tw [Center for Condensed Matter Sciences and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan (China); Shi, Z. W.; Chen, H. [Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

    2014-10-13T23:59:59.000Z

    We report an investigation of Sn segregation in Ge/GeSn heterostructures occurred during the growth by molecular beam epitaxy. The measured Sn profile in the Ge layer shows that: (a) the Sn concentration decreases rapidly near the Ge/GeSn interface, and (b) when moving away from the interface, the Sn concentration reduced with a much slower rate. The 1/e decay lengths of the present system are much longer than those of the conventional group IV system of Ge segregation in the Si overlayer because of the smaller kinetic potential as modeled by a self-limited two-state exchange scheme. The demonstration of the Sn segregation shows the material characteristics of the heterostructure, which are needed for the investigation of its optical properties.

  2. Characteristic nonlinear electromagnetic response of a Dirac Ring

    E-Print Network [OSTI]

    Ching Hua Lee; Xiao Zhang; Bochen Guan

    2015-03-04T23:59:59.000Z

    Recent theoretical development and experimental realizations of materials with exotic bandstructures have opened up new possibilities for engineering applications. One is the possibility of nonlinear electromagnetic devices based on specially designed bandstructure, which is highly sought after for applications like frequency upconversion. Indeed, there has been intense interest in the nonlinear response of graphene, whose linear dispersion lead to purportedly strong frequency multiplication properties. In this work, we theoretically study the nonlinear response of Dirac Ring systems, which we show has a much more exotic characteristic response that remains robust in the presence of finite temperature, chemical potential, mass gap and impurity scattering. Such systems have been experimentally realized in thin films of Bi2Se3 topological insulators. Our results are expected to hold qualitatively even in the absence of a strictly linear Dirac dispersion, as will be the case in more generic samples of Bi2Se3, HgTe quantum wells etc.

  3. Classification of fossil fuels according to structural-chemical characteristics

    SciTech Connect (OSTI)

    A.M. Gyul'maliev; G.S. Golovin; S.G. Gagarin [Institute for Fossil Fuels, Moscow (Russian Federation)

    2007-10-15T23:59:59.000Z

    On the basis of a set of linear equations that relate the amount of major elements n{sub E} (E = C, H, O, N, S) in the organic matter of fossil fuels to structural characteristics, such as the number of cycles R, the number of atoms n{sub E}, the number of mutual chemical bonds, the degree of unsaturation of the structure {delta}, and the extent of its reduction B, a structural-chemical classification of fossil coals that is closely related to the parameters of the industrial-genetic classification (GOST 25543-88) is proposed. Structural-chemical classification diagrams are constructed for power-generating coals of Russia; coking coals; and coals designed for nonfuel purposes including the manufacture of adsorbents, synthetic liquid fuel, ion exchangers, thermal graphite, and carbon-graphite materials.

  4. Delayed Neutron and Delayed Photon Characteristics from Photofission of Actinides

    SciTech Connect (OSTI)

    Dore, D.; Berthoumieux, E.; Leprince, A.; Ridikas, D. [DSM/IRFUS/PhN, CEA/Saclay, Gif-sur-Yvette, F-91191 (France); Ledoux, X. [CEA/DAM/DIF, Arpajon, F-91297 (France); Agelou, M.; Carrel, F.; Gmar, M. [CEA, LIST, Gif-sur-Yvette, F-91191 (France)

    2011-12-13T23:59:59.000Z

    Delayed neutron (DN) and delayed photon (DP) emissions from photofission reactions play an important role for applications involving nuclear material detection and characterization. To provide new, accurate, basic nuclear data for evaluations and data libraries, an experimental programme of DN and DP measurements has been undertaken for actinides with bremsstrahlung endpoint energy in the giant resonance region ({approx}15 MeV). In this paper, the experimental setup and the data analysis method will be described. Experimental results for DN and DP characteristics will be presented for {sup 232}Th, {sup 235,238}U, {sup 237}Np, and {sup 239}Pu. Finally, an example of an application to study the contents of nuclear waste packages will be briefly discussed.

  5. Analysis of characteristic of microwave regeneration for diesel particulate filter

    SciTech Connect (OSTI)

    Ning Zhi; Zhang Guanglong; Lu Yong; Liu Junmin; Gao Xiyan; Liang Iunhui; Chen Jiahua [Dalian Univ. of Technology (China)

    1995-12-31T23:59:59.000Z

    The mathematical model for the microwave regeneration of diesel particulate filter is proposed according to the characteristic of microwave regeneration process. The model is used to calculate the temperature field, distribution of particulate and density field of oxygen in the filter during the process of regeneration with typical ceramic foam particulate filter data. The parametric study demonstrates how some of the main parameters, such as microwave attenuation constant of the filter, filter particulate loading, the power and distribution of microwave energy and so on, affect the efficiency of regeneration, the maximum filter temperature and regeneration duration. The results show that it is possible to regenerate the diesel particulate filters in certain conditions by using microwave energy. This paper can give one a whole understanding to several main factors that have effects on the process of microwave regeneration and provide a theoretical basis for the optimal design of the microwave regeneration system.

  6. Correlations in Characteristic Data of Concentrator Photovoltaics (Poster)

    SciTech Connect (OSTI)

    Sweet, C.; Bosco, N.; Kurtz, S.

    2011-02-01T23:59:59.000Z

    This study is motivated by a reported 1-2% infant mortality rate in concentrator photovoltaic cell assemblies. Approximately 650 bare III-V multi-junction PV cells were initially characterized via electroluminescence imaging and both light and dark current-voltage responses were recorded. The cells were then packaged into receivers and their IV response again evaluated both before and after an outdoor high concentration exposure of at least four hours above 750 DNI. Correlations exist between the initial dark IV characteristic and artifacts found in the EL image. Initial results also suggest that artifacts observed in the bare cell may serve as an indicator for early on-sun degradation, though may not be able to predict the infant mortality population.

  7. Characteristics of the Receptor for the Biosphere Model

    SciTech Connect (OSTI)

    M. Wasiolek; K. Rautenstrauch

    2004-09-09T23:59:59.000Z

    This analysis report is one of a series of technical reports that document the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), a biosphere model supporting the total system performance assessment (TSPA) for the geologic repository at Yucca Mountain. This report is one of the five biosphere reports that develop input parameter values for the biosphere model. The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes the conceptual model, as well as the mathematical model and its input parameters. Figure 1-1 is a graphical representation of the documentation hierarchy for the ERMYN. This figure shows relationships among the products (i.e., scientific analyses and model reports) developed for biosphere modeling and biosphere abstraction products for TSPA, as identified in the ''Technical Work Plan: for Biosphere Modeling and Expert Support'' (BSC 2004 [DIRS 169573]). The purpose of this analysis report is to define values for biosphere model parameters that are related to the dietary, lifestyle, and dosimetric characteristics of the receptor. The biosphere model, consistent with the licensing rule at 10 CFR Part 63 [DIRS 156605], uses a hypothetical person called the reasonably maximally exposed individual (RMEI) to represent the potentially exposed population. The parameters that define the RMEI are based on the behaviors and characteristics of the residents of the unincorporated town of Amargosa Valley, consistent with the requirements of 10 CFR 63.312 [DIRS 156605]. The output of this report is used as direct input in the two analyses identified in Figure 1-1 that calculate the values of biosphere dose conversion factors (BDCFs) for the groundwater and volcanic ash exposure scenarios. The parameter values developed in this report are reflected in the TSPA through the BDCFs. The analysis was performed in accordance with AP-SIII.9Q, ''Scientific Analyses'', and the technical work plan (BSC 2004 [DIRS 169573]).

  8. Alexandria fluidized-bed process-development plant: bubble characteristics

    SciTech Connect (OSTI)

    Not Available

    1982-12-01T23:59:59.000Z

    Recent studies at DOE's Alexandria Atmospheric Fluidized-Bed Combustion (AFBC) Process Development Unit (PDU) have involved experimental verifications of predictions from the Massachusetts Institute of Technology's Coal AFBC Systems Model. Although Model predictions were quite accurate in many instances, there appeared to be several significant discrepancies between predicted values and association experimental data from the 3' x 3' (nominal) combustor at Alexandria. Experimental work at Alexandria related to the MIT Model was initiated in 1980. Readers should consult previous reports for an evaluation of the Model and a comparison between the Model predictions and Alexandria experimental data. As a result of these studies, a number of information gaps within the Model's database were identified, primarily related to the fluid dynamics submodel, which might account for some of the discrepancies noted. In an attempt to support further development and calibration of the MIT Model, facilities at the Alexandria PDU were committed to providing experimental data to alleviate some of the information gaps. The specific information gap focused upon during the period of January to August 1982 involved the bubble growth submodel within the fluid dynamics portion. The specific objective involved a series of tests designed to measure bubble characteristics within both cold and hot beds. Measurements were made under a variety of different conditions. The insights gained from the bubble characteristic related testing have been passed on to DOE and MIT, and used as the basis for implementing additional model refinements. Additional model verification activity is being carried out by DOE/METC. It is recognized that additional work will be necessary for the FBC Model to achieve the goal of being a useful aid for boiler designers.

  9. Distribution of characteristics of LWR [light water reactor] spent fuel

    SciTech Connect (OSTI)

    Reich, W.J.; Notz, K.J. [Oak Ridge National Lab., TN (USA); Moore, R.S. [Automated Sciences Group, Inc., Oak Ridge, TN (USA)

    1991-01-01T23:59:59.000Z

    The purpose of this report is to develop a collective description of the entire spent fuel inventory in terms of various fuel properties relevant to Approved Testing Materials (ATMs) using information available from the Characteristics Data Base (CBD), which is sponsored by the US Department of Energy`s (DOE`s) Office of Civilian Radioactive Waste Management. A number of light-water reactor (LWR) characteristics were analyzed including assembly class representation, fuel burnup, enrichment, fuel fabrication data, defective fuel quantities, and, at PNL`s specific request, linear heat generation rate (LHGR) and the utilization of burnable poisons. A quantitative relationships was developed between burnup and enrichment for BWRs and PWRs. The relationship shows that the existing BWR ATM is near the center of the burnup-enrichment distribution, while the four PWR ATMs bracket the center of the burnup range but are on the low side of the enrichment range. Fuel fabrication data are based on vendor specifications for new fuel. Defective fuel distributions were analyzed in terms of assembly class and vendor design. LHGR values were calculated from utility data on burnup and effective full-power days; these calculations incorporate some unavoidable assumptions which may compromise the value of the results. Only a limited amount of data are available on burnable poisons at this time. Based on this distribution study, suggestions for additional ATMs are made. These are based on the class and design concepts and include BWR/2,3 barrier fuel, and the WE 17 {times} 17 class with integral burnable poison. Both should be at relatively high burnups. 16 refs., 5 figs., 15 tabs.

  10. Characteristics of the Receptor for the Biosphere Model

    SciTech Connect (OSTI)

    M.A. Wasiolek; K.R. Rautenstrauch

    2003-06-27T23:59:59.000Z

    This analysis report is one of the technical reports containing documentation of the Environmental Radiation Model for Yucca Mountain Nevada (ERMYN), a biosphere model supporting the Total System Performance Assessment (TSPA) for the geologic repository at Yucca Mountain. A graphical representation of the documentation hierarchy for the ERMYN is presented in Figure 1-1. This figure shows relationships among the products (i.e., analysis and model reports) developed for biosphere modeling and biosphere abstraction products for TSPA, as identified in the ''Technical Work Plan: for Biosphere Modeling and Expert Support'' (TWP) (BSC 2003). Some documents identified in Figure 1-1 may be under development and not available at the time this report is issued. This figure is included to provide an understanding of how this analysis report contributes to biosphere modeling in support of the license application, and access to the listed documents is not required to understand the contents of this report. This report is one of the reports that develop input parameter values for the biosphere model. The ''Biosphere Model Report'' (BSC 2003), describes the conceptual model as well as the mathematical model and its input parameters. The purpose of this analysis report is to define values for biosphere model parameters that are related to the dietary, lifestyle, and dosimetric characteristics of the receptor. The biosphere model, consistent with the licensing rule at 10 CFR Part 63, uses a hypothetical person called the reasonably maximally exposed individual (RMEI) to represent the potentially exposed population. The parameters that define the RMEI are based on the behaviors and characteristics of the Amargosa Valley population, consistent with the requirements of 10 CFR 63.312. Amargosa Valley is the community, located in the direction of the projected groundwater flow path, where most of the farming in the area occurs. The parameter values developed in this report support the biosphere model and are reflected in the TSPA through the biosphere dose conversion factors (BDCFs). The analysis was performed in accordance with the TWP (BSC 2003). This analysis supports the treatment of fourteen features, events, and processes (FEPs) applicable to the reference biosphere (DTN: MO0303SEPFEPS2.000) and addressed in the biosphere model (BSC 2003). The treatment of these FEPs in the biosphere model is described in the ''Biosphere Model Report'' (BSC 2003, Section 6.2). The parameters developed in this report and the related FEPs are listed in Table 1-1.

  11. Characteristics of the Receptor for the Biosphere Model

    SciTech Connect (OSTI)

    M.A. Wasiolek

    2005-04-05T23:59:59.000Z

    This analysis report is one of a series of technical reports that document the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), a biosphere model supporting the total system performance assessment (TSPA) for the geologic repository at Yucca Mountain. This report is one of the five biosphere reports that develop input parameter values for the biosphere model. The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes the conceptual model, as well as the mathematical model and its input parameters. Figure 1-1 is a graphical representation of the documentation hierarchy for the ERMYN. This figure shows relationships among the products (i.e., scientific analyses and model reports) developed for biosphere modeling and biosphere abstraction products for TSPA, as identified in the ''Technical Work Plan for Biosphere Modeling and Expert Support'' (BSC 2005 [DIRS 172782]). The purpose of this analysis report is to define values for biosphere model parameters that are related to the dietary, lifestyle, and dosimetric characteristics of the receptor. The biosphere model, consistent with the licensing rule at 10 CFR Part 63 [DIRS 173164], uses a hypothetical person called the reasonably maximally exposed individual (RMEI) to represent the potentially exposed population. The parameters that define the RMEI are based on the behaviors and characteristics of the residents of the unincorporated town of Amargosa Valley, consistent with the requirements of 10 CFR 63.312 [DIRS 173164]. The output of this report is used as direct input in the two analyses identified in Figure 1-1 that calculate the values of biosphere dose conversion factors (BDCFs) for the groundwater and volcanic ash exposure scenarios. The parameter values developed in this report are reflected in the TSPA through the BDCFs. The analysis was performed in accordance with LP-SIII.9Q-BSC, ''Scientific Analyses'', and the technical work plan (BSC 2005 [DIRS 172782]). The scope of the revision was to develop dosimetric input parameters for the biosphere model that are consistent with the International Commission on Radiological Protection (ICRP) Publication 72 (ICRP 1996 [DIRS 152446]). The quantities developed previously (BSC 2004 [DIRS 169671]), which reflect the ICRP Publication 30 dosimetric methods (ICRP 30) (ICRP 1979 [DIRS 110386]; ICRP 1980 [DIRS 110351]; ICRP 1981 [DIRS 110352]) were not changed and were retained in this report.

  12. Marvell NanoLab Member login Lab Manual Contents MercuryWeb Berkeley Microlab Chapter 5.33

    E-Print Network [OSTI]

    Healy, Kevin Edward

    ­ Quick Dump Rinse (DI water) 5.2 SRD ­ Spin Rinse Dry (DI water and N2 purge) 5.3 RTP ­ Rapid Thermal the correct offset needed for their critical runs, as explained in Appendix 12.1. 8.1 Available Processes 8, and an ensuing one minute HF dip for oxide removal if desired. Photoresist coated non-metalized wafers must

  13. A Journey from UCSB physics to Audrey Nelson

    E-Print Network [OSTI]

    Akhmedov, Azer

    : CO2, H2O, CO, Hydrocarbons Multiple gas sensing possible in a single sensor (CO2 & H2O) #12;IR lamp spectrum #12;Best Infrared LED sample-RMT Ltd Russian #12;LED spectrum shift under temperature change #12 1.55E-05 1.75E-05 3 3.5 4 4.5 5 5.5 Wavelength (um) Ambient N2 Purge #12;LED Spectrum at different

  14. Antenna system characteristic and solar radio burst observation

    E-Print Network [OSTI]

    Li, Sha; Chen, Zhijun; Wang, Wei; Liu, Donghao

    2015-01-01T23:59:59.000Z

    Chinese Spectral Radio Heliograph (CSRH) is an advanced aperture synthesis solar radio heliograph, developed by National Astronomical Observatories, Chinese Academy of Sciences independently. It consists of 100 reflector antennas, which are grouped into two antenna arrays (CSRH-I and CSRH-II) for low and high frequency bands respectively. The frequency band of CSRH-I is 0.4-2GHz and for CSRH-II, the frequency band is 2-15GHz. In the antenna and feed system, CSRH uses an Eleven feed to receive signals coming from the Sun, the radiation pattern with lower side lobe and back lobe of the feed is well radiated. The characteristics of gain G and antenna noise temperature T effect the quality of solar radio imaging. For CSRH, measured G is larger than 60 dBi and $ T $ is less than 120K, after CSRH-I was established, we have successfully captured a solar radio burst between 1.2-1.6GHz on November 12, 2010 through this instrument and this event was confirmed through the observation of Solar Broadband Radio Spectromete...

  15. Overload characteristics of paper-polypropylene-paper cable

    SciTech Connect (OSTI)

    Ernst, A. (Underground Systems, Inc., Armonk, NY (USA))

    1990-09-01T23:59:59.000Z

    The short-time rating of PPP pipe-type cable may be lower than the equivalent paper cable sized to carry the same normal load. The ratings depend on the relative conductor sizes and the maximum allowable conductor temperatures of the insulation. The insulation thermal resistivity may be a significant parameter for overload times of approximately one hour and should be verified for PPP insulation. The thermal capacitance temperature characteristic of PPP insulation is not known. However, the overload ratings are not very sensitive to this parameter. Overload ratings are given for maximum conductor temperatures from 105 C to 130 C. Use of ratings based on temperatures greater than 105 C would require testing to determine the extent of degradation of the insulation at these higher temperatures. PPP-insulated cable will be thermally stable over a wider range of operating conditions (voltage and current) compared with paper-insulated cable. The short-circuit ratings of PPP- and paper-insulated cable systems and the positive/negative and zero sequence impedances are compared. 21 refs., 22 figs., 5 tabs.

  16. Physical and decay characteristics of commercial LWR spent fuel

    SciTech Connect (OSTI)

    Roddy, J.W.; Claiborne, H.C.; Ashline, R.C.; Johnson, P.J.; Rhyne, B.T.

    1986-01-01T23:59:59.000Z

    Information was collected from the literature and from major manufacturers that will be useful in the design and construction of a mined geologic repository for the disposal of light-water-reactor spent fuel. Pertinent data are included on mechanical design characteristics and materials of construction for fuel assemblies and fuel rods and computed values for heat generation rates, radioactivity, and photon and neutron emission rates as a function of time for four reference cases. Calculations were made with the ORIGEN2 computer code for burnups of 27,500 and 40,000 MWd for a typical boiling-water reactor and 33,000 and 60,000 MWd for a typical pressurized-water reactor. The results are presented in figures depicting the individual contributions per metric ton of initial heavy metal for the activation products, fission products, and actinides and their daughters to the radioactivity and thermal power as a function of time. Tables are also presented that list the contribution of each major nuclide to the radioactivity, thermal power, and photons and neutrons emitted for disposal emitted for disposal periods from 1 to 100,000 years.

  17. Universal Characteristics of Fractal Fluctuations in Prime Number Distribution

    E-Print Network [OSTI]

    A. M. Selvam

    2008-11-12T23:59:59.000Z

    The frequency of occurrence of prime numbers at unit number spacing intervals exhibits selfsimilar fractal fluctuations concomitant with inverse power law form for power spectrum generic to dynamical systems in nature such as fluid flows, stock market fluctuations, population dynamics, etc. The physics of long-range correlations exhibited by fractals is not yet identified. A recently developed general systems theory visualises the eddy continuum underlying fractals to result from the growth of large eddies as the integrated mean of enclosed small scale eddies, thereby generating a hierarchy of eddy circulations, or an inter-connected network with associated long-range correlations. The model predictions are as follows: (i) The probability distribution and power spectrum of fractals follow the same inverse power law which is a function of the golden mean. The predicted inverse power law distribution is very close to the statistical normal distribution for fluctuations within two standard deviations from the mean of the distribution. (ii) Fractals signify quantumlike chaos since variance spectrum represents probability density distribution, a characteristic of quantum systems such as electron or photon. (ii) Fractal fluctuations of frequency distribution of prime numbers signify spontaneous organisation of underlying continuum number field into the ordered pattern of the quasiperiodic Penrose tiling pattern. The model predictions are in agreement with the probability distributions and power spectra for different sets of frequency of occurrence of prime numbers at unit number interval for successive 1000 numbers. Prime numbers in the first 10 million numbers were used for the study.

  18. Emission and spectral characteristics of electrodeless indium halide lamp

    SciTech Connect (OSTI)

    Takeda, M.; Hochi, A.; Horii, S.; Matsuoka, T. [Matsushita Electric Industrial Co., Ltd., Kyoto (Japan). Lighting Research Lab.

    1997-12-31T23:59:59.000Z

    The electrodeless HID lamp excited by microwave has been intensively investigated because of its long life, high efficacy and environmental aspect. This study reports excellent emission and spectral characteristics of electrodeless HID lamp containing indium halides. The authors investigate InI and InBr as ingredients, and measure the microwave excited spectra and luminous intensities of lamps which are made from spherical silica glass in 10--40 mm outer diameter and with various amounts of halides. It is well known that such indium halides in the usual metal-halide lamps have strong blue line emission at 410 and 451nm. But, in the authors` microwave excited lamps, continuous spectrum can be observed in addition in the visible region. Increasing input of power of microwave makes this continuous spectrum stronger. Below 1kW microwave input power, the spectrum of InBr lamp almost resembled the CIE standard illuminant D65. As a consequence of the spectrum, they found that the color rendering and the duv of InBr lamp were excellent as high as 95 and smaller than 0.002, respectively, in the region of 400--800W input power. The efficacy higher than 100 lm/W was further achieved at 400W. The authors confirm that the microwave excited indium halides lamps can be applicable to many fields of lighting.

  19. Magnetostrictive materials and method for improving AC characteristics in same

    DOE Patents [OSTI]

    Pulvirenti, Patricia P. (Chicago, IL); Jiles, David C. (Ames, IA)

    2001-08-14T23:59:59.000Z

    The present invention provides Terfenol-D alloys ("doped" Terfenol) having optimized performances under the condition of time-dependent magnetic fields. In one embodiment, performance is optimized by lowering the conductivity of Terfenol, thereby improving the frequency response. This can be achieved through addition of Group III or IV elements, such as Si and Al. Addition of these types of elements provides scattering sites for conduction electrons, thereby increasing resistivity by 125% which leads to an average increase in penetration depth of 80% at 1 kHz and an increase in energy conversion efficiency of 55%. The permeability of doped Terfenol remains constant over a wider frequency range as compared with undoped Terfenol. These results demonstrate that adding impurities, such as Si and Al, are effective in improving the ac characteristics of Terfenol. A magnetoelastic Gruneisen parameter, .gamma..sub.me, has also been derived from the thermodynamic equations of state, and provides another means by which to characterize the coupling efficiency in magnetostrictive materials on a more fundamental basis.

  20. Moyal's Characteristic Function, the Density Matrix and von Neumann's Idempotent

    E-Print Network [OSTI]

    Basil J. Hiley

    2014-08-25T23:59:59.000Z

    In the Wigner-Moyal approach to quantum mechanics, we show that Moyal's starting point, the characteristic function $M(\\tau,\\theta)=\\int \\psi^{*}(x)e^{i(\\tau {\\hat p}+\\theta{\\hat x})}\\psi(x)dx$, is essentially the primitive idempotent used by von Neumann in his classic paper "Die Eindeutigkeit der Schr\\"odingerschen Operatoren". This paper provides the original proof of the Stone-von Neumann equation. Thus the mathematical structure Moyal develops is simply a re-expression of what is at the heart of quantum mechanics and reproduces exactly the results of the quantum formalism. The "distribution function" $F(X,P,t)$ is simply the quantum mechanical density matrix expressed in an $( X,P)$-representation, where $X$ and $P$ are the mean co-ordinates of a cell structure in phase space. The whole approach therefore clearly has little to do with classical statistical theories but is a consequence of a non-commutative nature of the theory.

  1. Characteristics of plasma scalds in multilayer dielectric films

    SciTech Connect (OSTI)

    Liu Xiaofeng; Zhao Yuan'an; Li Dawei; Hu Guohang; Gao Yanqi; Fan Zhengxiu; Shao Jianda

    2011-07-20T23:59:59.000Z

    Plasma scalding is one of the most typical laser damage morphologies induced by a nanosecond laser with a wavelength of 1053 nm in HfO{sub 2}/SiO{sub 2} multilayer films. In this paper, the characteristics of plasma scalds are systematically investigated with multiple methods. The scalding behaves as surface discoloration under a microscope. The shape is nearly circular when the laser incidence angle is close to normal incidence and is elliptical at oblique incidence. The nodular-ejection pit is in the center of the scalding region when the laser irradiates at the incidence angle close to normal incidence and in the right of the scalding region when the laser irradiates from left to right at oblique incidence. The maximum damage size of the scalding increases with laser energy. The edge of the scalding is high compared with the unirradiated film surface, and the region tending to the center is concave. Plasma scald is proved to be surface damage. The maximum depth of a scald increases with its size. Tiny pits of nanometer scale can be seen in the scalding film under a scanning electronic microscope at a higher magnification. The absorptions of the surface plasma scalds tend to be approximately the same as the lower absorptions of test sites without laser irradiation. Scalds do not grow during further illumination pulses until 65 J/cm{sup 2}. The formation of surface plasma scalding may be related to the occurrence of the laser-supported detonation wave.

  2. Morphologic-cytologic characteristics and drought resistance of selected strains of hairy grama (Bouteloua hirsuta Lag.

    E-Print Network [OSTI]

    Landers, Roger Q

    1955-01-01T23:59:59.000Z

    LIBR4R Y A A M COLLEGE OF TEXAS N(RPHOLOGIC-CYTOLOGIC CHARACTERISTICS AND DROUGHT RESISTANCE OF SELECTED STRAINS OF HAIRY GRANA (Eouteloua hirsuta Lag ) A Thesis Roger g. Landers, Jr. Subad. tted to the Graduate Sohool of the Agrioultural.... Drought Resistance. Drought Resistance of Hairy Grams. Morphologic Cytologic Characteristics, COLLECTION AND PROPAOATION OF STRAINS. DESCRIPTION OF STRAINS, Morphological Characteristics. Cytological Characteristios. DROUGHT RESISTANCE STUDIES...

  3. Catalytic Synthesis of Oxygenates: Mechanisms, Catalysts and Controlling Characteristics

    SciTech Connect (OSTI)

    Kamil Klier; Richard G. Herman

    2005-11-30T23:59:59.000Z

    This research focused on catalytic synthesis of unsymmetrical ethers as a part of a larger program involving oxygenated products in general, including alcohols, ethers, esters, carboxylic acids and their derivatives that link together environmentally compliant fuels, monomers, and high-value chemicals. The catalysts studied here were solid acids possessing strong Br???????¸nsted acid functionalities. The design of these catalysts involved anchoring the acid groups onto inorganic oxides, e.g. surface-grafted acid groups on zirconia, and a new class of mesoporous solid acids, i.e. propylsulfonic acid-derivatized SBA-15. The former catalysts consisted of a high surface concentration of sulfate groups on stable zirconia catalysts. The latter catalyst consists of high surface area, large pore propylsulfonic acid-derivatized silicas, specifically SBA-15. In both cases, the catalyst design and synthesis yielded high concentrations of acid sites in close proximity to one another. These materials have been well-characterization in terms of physical and chemical properties, as well as in regard to surface and bulk characteristics. Both types of catalysts were shown to exhibit high catalytic performance with respect to both activity and selectivity for the bifunctional coupling of alcohols to form ethers, which proceeds via an efficient SN2 reaction mechanism on the proximal acid sites. This commonality of the dual-site SN2 reaction mechanism over acid catalysts provides for maximum reaction rates and control of selectivity by reaction conditions, i.e. pressure, temperature, and reactant concentrations. This research provides the scientific groundwork for synthesis of ethers for energy applications. The synthesized environmentally acceptable ethers, in part derived from natural gas via alcohol intermediates, exhibit high cetane properties, e.g. methylisobutylether with cetane No. of 53 and dimethylether with cetane No. of 55-60, or high octane properties, e.g. diisopropylether with blending octane No. of 105, and can replace aromatics in liquid fuels.

  4. Fabrication Characteristics of Large Grain DUPIC Fuel Using SIMFUEL

    SciTech Connect (OSTI)

    Park, Geun IL; Lee, Jung Won; Lee, Jae Won; Yang, Myung Seung; Song, Kee Chan [Korea Atomic Energy Research Institute, 150-1 Duckjin-Dong, 1045 Daedeokdaero, Yuseong, Daejeon Korea, 305-353 (Korea, Republic of)

    2007-07-01T23:59:59.000Z

    Fabrication characteristics to improve the density and grain size of DUPIC fuel with relation to its fuel performance were experimentally evaluated using SIMFUEL as a surrogate for an actual spent PWR fuel due to the high radioactivity of a spent fuel. Hence, SIMFUELs with a burn-up of 35,000 MWd/tU and 60,000 MWd/tU were used to investigate the influence of fission products contents as an impurity on the fuel powder properties and on the density and grain size of a simulated DUPIC pellet. In order to improve the densification and grain growth of the simulated DUPIC fuel, the effect of the addition of sintering aids was investigated. The specific surface area of the OREOX powders was increased with an increase of the impurities by the dissolved oxides in UO{sub 2} among the impurity groups. The specific surface area of the powders milled after the OXREOX treatment was slightly higher than the UO{sub 2} powder used for a nuclear power plant, thus resulting in sintered pellets with a higher than 95% T.D. (theoretical density). The grain size of the sintered pellets was significantly decreased with increasing amount of the metallic and oxide precipitates. However, on adding the sintering aids such as TiO{sub 2} and Nb{sub 2}O{sub 5}, the grain size of the sintering aids-doped pellets was greatly improved by up to around 3 times that of the raw pellets and their sintered density was also increased by up to 2%. (authors)

  5. Characteristic losses in metals: Al, Be, and Ni

    SciTech Connect (OSTI)

    Madden, H.H.; Landers, R.; Kleiman, G.G. [Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas (UNICAMP), Caixa Postal 6165, 13081-970 Campinas, Sao Paulo, Brasil] [Instituto de Fisica Gleb Wataghin, Universidade Estadual de Campinas (UNICAMP), Caixa Postal 6165, 13081-970 Campinas, Sao Paulo, Brasil; Zehner, D.M. [Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6057 (United States)] [Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6057 (United States)

    1998-07-01T23:59:59.000Z

    Information about the {ital occupied} portion of the surface density of states of materials can be derived from electron-excited Auger electron spectroscopy (AES), which is a standard experimental technique in most surface science laboratories. Surface sensitive experimental techniques that provide information regarding the {ital unoccupied} portion of the surface density of states are often not standard and are not so readily available. Here we explore the possibility of utilizing the same experimental equipment as in AES to derive information about the unoccupied portion of the surface density of states from a characteristic loss spectroscopy, in particular, from core-level inelastic electron-scattering spectroscopy (CLIESS). An important application of this technique is in comparative studies. CLIESS spectra from clean surfaces of aluminum, beryllium and nickel are presented. These data were taken in the first-derivative mode using the reflection of monoenergetic primary beams of 450 eV energy for Be, and 300 eV for Al and Ni. The Al and Be spectra had to be extracted from overlapping plasmon signals using synthesized plasmon spectra based on the behavior of these spectra between the elastic peak energy and the respective core level threshold energies. After applying loss-deconvolution techniques to remove secondary loss spectral distortions, integral spectra were obtained which compared well to corresponding experimental soft x-ray absorption and transmission electron-energy loss data as well as to theoretical calculations of the unoccupied density-of-states for these materials. Comparison similarities as well as some differences are discussed. Finally, in order to illustrate the potential these signals have in serving as {open_quotes}fingerprints{close_quotes} of surface chemistry, derivative metal-CLIESS curves for the three oxide surfaces of the metals are also presented. {copyright} {ital 1998 American Vacuum Society.}

  6. Airfoil Heat Transfer Characteristics in Syngas and Hydrogen Turbines

    SciTech Connect (OSTI)

    Mazzotta, D.W. (Univ. of Pittsburgh); Chyu, M.K. (Univ. of Pittsburgh); Alvin, M.A.

    2007-05-01T23:59:59.000Z

    Hydrogen or coal-derivative syngas turbines promise increased efficiency with exceptionally low NOx emissions compared to the natural gas based turbines. To reach this goal, turbine inlet temperature (TIT) will need to be elevated to a level exceeding 1700C [1, 2]. The thermal load induced by such a temperature increase alone will lead to immense challenges in maintaining material integrity of turbine components. In addition, as working fluid in the gas path will primarily be steam, possibly mixed with carbon oxides, the aero-thermal characteristic in a hydrogen turbine is expected to be far different from that of air/nitrogen enriched gas stream in a gas turbine. For instance, steam has distinctly higher density and specific heat in comparison to a mixture of air and combustion gases as they are expanded in a conventional gas turbine. Even if the temperature limits remain about the same, the expansion in a hydrogen turbine will have to proceed with a greater enthalpy drop and therefore requires a larger number of stages. This also implies that the flow areas may need to be expanded and blade span to be enlarged. Meanwhile, a greater number of stages and hot surfaces need to be protected. This also suggests that current cooling technology available for modern day gas turbines has to be significantly improved. The ultimate goal of the present study is to systematically investigate critical issues concerning cooling technology as it is applicable to oxy-fuel and hydrogen turbine systems, and the main scope is to develop viable means to estimate the thermal load on the turbine gas side, that is eventually to be removed from the coolant side, and to comparatively quantify the implication of external heat load and potential thermal barrier coating (TBC) degradation on the component durability and lifing. The analysis is based on two well-tested commercial codes, FLUENT and ANSYS.

  7. KZ Characteristic Variety as the Zero Set of Classical Calogero-Moser Hamiltonians

    E-Print Network [OSTI]

    Evgeny Mukhin; Vitaly Tarasov; Alexander Varchenko

    2012-10-16T23:59:59.000Z

    We discuss a relation between the characteristic variety of the KZ equations and the zero set of the classical Calogero-Moser Hamiltonians.

  8. Stress response effects on growth, carcass characteristics, and tenderness in Bonsmara-influenced steers

    E-Print Network [OSTI]

    Falkenberg, Shollie Marie

    2006-08-16T23:59:59.000Z

    Half-blood Bonsmara steers were evaluated for temperament during stressful situations to discover the relationships between behavioral stress responses, growth, carcass characteristics and tenderness. Two experiments were ...

  9. Performance Characteristics of Lithium-ion Batteries of Various Chemistries for Plug-in Hybrid Vehicles

    E-Print Network [OSTI]

    Burke, Andrew; Miller, Marshall

    2009-01-01T23:59:59.000Z

    Characteristics of Lithium-ion Batteries of Variousare presented for lithium-ion cells and modules utilizingAdvisor utilizing lithium-ion batteries of the different

  10. [Article 6 of 7]: Research on the Characteristics of a Smart...

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

    Future State The self-healing characteristic, at both transmission and distribution grid levels, will move forward through the integration of advanced capabilities in the...

  11. Performance Characteristics of Lithium-ion Batteries of Various Chemistries for Plug-in Hybrid Vehicles

    E-Print Network [OSTI]

    Burke, Andrew; Miller, Marshall

    2009-01-01T23:59:59.000Z

    the manufacture of lithium batteries (References 2 and 3).Characteristics of Lithium-ion Batteries of VariousAdvisor utilizing lithium-ion batteries of the different

  12. Fuel Cell Powered Vehicles Using Supercapacitors: Device Characteristics, Control Strategies, and Simulation Results

    E-Print Network [OSTI]

    Zhao, Hengbing; Burke, Andy

    2010-01-01T23:59:59.000Z

    Vehicles Using Supercapacitors -- Device Characteristics,With the emergence of large supercapacitors (also know asin conjunction with supercapacitors can create high power

  13. SFSU Clinical Laboratory Science Internship Program Characteristics of a successful CLS applicant

    E-Print Network [OSTI]

    SFSU Clinical Laboratory Science Internship Program Characteristics of a successful CLS applicant the "Essential Requirements of the SFSU CLS Internship Program"). Letters of recommendation Recommendations

  14. Characteristics of Pt-K/MgAl2O4 lean NOx trap catalysts. | EMSL

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

    Pt-KMgAl2O4 lean NOx trap catalysts. Characteristics of Pt-KMgAl2O4 lean NOx trap catalysts. Abstract: We report the various characteristics of Pt-KMgAl2O4 lean NOx trap (LNT)...

  15. Uncertainties in using the hodograph method to retrieve gravity wave characteristics from individual soundings

    E-Print Network [OSTI]

    Plougonven, Riwal

    Uncertainties in using the hodograph method to retrieve gravity wave characteristics from individual soundings Fuqing Zhang and Shuguang Wang Department of Atmospheric Sciences, Texas A&M University] The hodograph method is commonly used to retrieve inertio-gravity wave characteristics from individual vertical

  16. Effect of a lactic acid bacterial inoculant on the fermentation characteristics of cereal and alfalfa forages

    E-Print Network [OSTI]

    Boyer, Edmond

    fermentation (lowering pH, increasing lactic acid to acetic acid ratio, reducing ammonia), especially underEffect of a lactic acid bacterial inoculant on the fermentation characteristics of cereal and corn. Data on the effect of inoculants on the fermentation characteristics of cereal silages

  17. Phosphorus Adsorption-Desorption Characteristics of Two Soils Utilized for Disposal of Animal Wastes1

    E-Print Network [OSTI]

    Florida, University of

    Phosphorus Adsorption-Desorption Characteristics of Two Soils Utilized for Disposal of Animal was to determine the effect of animal waste loading rates on P adsorption-desorption characteristics of two soils to a Norfolk soil decreased adsorption capacity of the soil and increased soluble P (in 0.01A/ CaCU), acid

  18. J Bone Miner Metab . Author manuscript Mineral maturity and crystallinity index are distinct characteristics of bone

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    J Bone Miner Metab . Author manuscript Page /1 13 Mineral maturity and crystallinity index are distinct characteristics of bone mineral Delphine Farlay 1 * , G rard Panczer 2 , Christian Rey 3 , Pierre the hypothesis that mineral maturity and crystallinity index are two different characteristics of bone mineral

  19. Eye-Tracking: Characteristics and Methods Eye-Tracking: Research Areas and Applications

    E-Print Network [OSTI]

    Richardson, Daniel C.

    1 Part 1 Eye-Tracking: Characteristics and Methods Part 2 Eye-Tracking: Research Areas. & Bowlin, G. (Eds.) [ PREPRINT, FEB 2004. PLEASE DO NOT QUOTE ] #12;2 Eye-Tracking: Characteristics and Methods Introduction Eye movements are arguably the most frequent of all human movements (Bridgeman, 1992

  20. Interpretation of Source Code Clusters in Terms of the ISO/IEC-9126 Maintainability Characteristics

    E-Print Network [OSTI]

    Tjortjis, Christos

    Interpretation of Source Code Clusters in Terms of the ISO/IEC-9126 Maintainability Characteristics of the entire system. In this paper, we propose a method for interpreting source code clusters using the ISO/IEC assessment of software systems in terms of the quality characteristics defined by ISO/IEC 9126. These methods

  1. Flux pinning characteristics in cylindrical niobium samples used for superconducting radio frequency cavity fabrication

    E-Print Network [OSTI]

    Flux pinning characteristics in cylindrical niobium samples used for superconducting radio.1088/0953-2048/25/6/065014 Flux pinning characteristics in cylindrical niobium samples used for superconducting radio frequency-grain (LG) and fine-grain (FG) niobium samples used for the fabrication of superconducting radio frequency

  2. Incorporating Operational Characteristics and Startup Costs in Option-Based Valuation of

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Incorporating Operational Characteristics and Startup Costs in Option-Based Valuation of Power characteristics on valuation of generation assets under different modeling assumptions about the energy commodity prices. We find that the impacts of operational constraints on real asset valuation are dependent upon

  3. Soil-Water Characteristic Curve Modeling at Low Water Content: Empirical and Semi-Empirical Approaches

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Soil-Water Characteristic Curve Modeling at Low Water Content: Empirical and Semi model, the Modified Kovacs (MK) model for the determination of soil-water characteristic curve at the low water contents of two horizons of a soil from Burkina Faso. Combining terms from capillary state

  4. BER Estimation for Serial Links Based on Jitter Spectrum and Clock Recovery Characteristics

    E-Print Network [OSTI]

    BER Estimation for Serial Links Based on Jitter Spectrum and Clock Recovery Characteristics Dongwoo technique estimates the BER based on the spectral information of jitter and the characteristics of the clock-volume production testing [1]. One of the major contributors to the BER is jitter. Jitter is defined

  5. The Rotational Propulsion Characteristics of Scaled-up Helical Microswimmers with different heads and magnetic positioning

    E-Print Network [OSTI]

    of the cut-off frequency. The rotational propulsion characteristics of helical swimmers with a magnetic headThe Rotational Propulsion Characteristics of Scaled-up Helical Microswimmers with different heads and magnetic positioning Tiantian Xu1, Gilgueng Hwang2, Nicolas Andreff3 and Stephane Regnier1 Abstract

  6. Thunderstorm lightning and radar characteristics: insights on electrification and severe weather forecasting

    E-Print Network [OSTI]

    Steiger, Scott Michael

    2007-04-25T23:59:59.000Z

    THUNDERSTORM LIGHTNING AND RADAR CHARACTERISTICS: INSIGHTS ON ELECTRIFICATION AND SEVERE WEATHER FORECASTING A Dissertation by SCOTT MICHAEL STEIGER Submitted to the Office of Graduate Studies of Texas A&M University in partial... fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2005 Major Subject: Atmospheric Sciences THUNDERSTORM LIGHTNING AND RADAR CHARACTERISTICS: INSIGHTS ON ELECTRIFICATION AND SEVERE WEATHER...

  7. Convective heat transfer characteristics of China RP-3 aviation kerosene at supercritical pressure

    E-Print Network [OSTI]

    Guo, Zhixiong "James"

    Convective heat transfer characteristics of China RP-3 aviation kerosene at supercritical pressure Keywords: Supercritical pressure Aviation kerosene Convective heat transfer Numerical study a b s t r a c convective in kerosene pipe flow is complicated. Here the convective heat transfer characteristics of China

  8. NOx emission characteristics of counterflow syngas diffusion flames with airstream dilution

    E-Print Network [OSTI]

    Aggarwal, Suresh K.

    NOx emission characteristics of counterflow syngas diffusion flames with airstream dilution Daniel Abstract Syngas is produced through a gasification process using variety of fossil fuels, including coal. Due to its wide flexibility in fuel sources and superior pollutants characteristics, the syngas

  9. Job Characteristics, Occupational Status, and Ambulatory Cardiovascular Activity in Women Linda C. Gallo, Ph.D.

    E-Print Network [OSTI]

    Gallo, Linda C.

    Job Characteristics, Occupational Status, and Ambulatory Cardiovascular Activity in Women Linda C. Moreover, the concurrent effects of occupational sta- tus and job characteristics have rarely been investigated. Some research is consistent with the idea that stressful job characteris- tics are especially

  10. Combustion characteristics of fuel droplets with addition of nano and micron-sized aluminum particles

    E-Print Network [OSTI]

    Qiao, Li

    Combustion characteristics of fuel droplets with addition of nano and micron-sized aluminum Aluminum nanoparticles Microexplosion Particle aggregation a b s t r a c t The burning characteristics of fuel droplets containing nano and micron-sized aluminum particles were investigated. Particle size

  11. Cold Vacuum Drying (CVD) Facility General Service Helium System Design Description

    SciTech Connect (OSTI)

    SHAPLEY, B.J.

    2000-04-20T23:59:59.000Z

    The purpose of this System Design Description (SDD) is to describe the characteristics of the Cold Vacuum Drying (CVD) Facility general service helium system. The general service helium system is a general service facility process support system, but does include safety-class structures, systems and components (SSCs) providing protection to the offsite public. The general service helium system also performs safety-significant functions that provide protection to onsite workers. The general helium system essential function is to provide helium (He) to support process functions during all phases of facility operations. General service helium is used to purge the cask and the MCO in order to maintain their internal atmospheres below hydrogen flammability concentrations. The general service helium system also supplies helium to purge the process water conditioning (PWC) lines and components and the vacuum purge system (VPS) vacuum pump. The general service helium system, if available following an Safety Class Instrument and Control System (SCIC) Isolation and Purge (IS0 and PURGE) Trip, can provide an alternate general service helium system source to supply the Safety-Class Helium (SCHe) System.

  12. Thermal resistance gaps for solid breeder blankets using packed beds

    SciTech Connect (OSTI)

    Gorbis, Z.R.; Raffray, A.R.; Tillack, M.S.; Abdou, M.A.

    1989-03-01T23:59:59.000Z

    The main design features of a new concept for solid breeder blanket thermal resistance gaps are described and analysis is shown for the blanket thermal characteristics. The effective thermal conductivity of a helium-beryllium packed bed configuration is studied, including the effect of a purge stream. Possible applications of this concept to ITER blanket designs are stressed.

  13. Vegetation and sediment characteristics of created and natural Spartina alterniflora marshes in Lower Galveston Bay, Texas

    E-Print Network [OSTI]

    Albertson, Andrea Kai

    1998-01-01T23:59:59.000Z

    Five natural and ten created Spartina altemiflora marshes in the Lower Galveston Bay System, Texas, were compared to determine if there were significantly different vegetative and sediment characteristics associated with each marsh type. Vegetative...

  14. Static downhole characteristics of well CGEH-1 at Coso Hot Springs...

    Open Energy Info (EERE)

    downhole characteristics of well CGEH-1 at Coso Hot Springs, China Lake, California Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Static downhole...

  15. Comparison of direct current and 50?Hz alternating current microscopic corona characteristics on conductors

    SciTech Connect (OSTI)

    Zhang, Shuai, E-mail: zhangshuai94@gmail.com; Zhang, Bo, E-mail: shizbcn@mail.tsinghua.edu.cn; He, Jinliang, E-mail: hejl@tsinghua.edu.cn [State Key Lab of Power Systems, and Department of Electrical Engineering, Tsinghua University, Beijing 100084 (China)

    2014-06-15T23:59:59.000Z

    Corona discharge is one of the major design factors for extra-high voltage and ultra-high voltage DC/AC transmission lines. Under different voltages, corona discharge reveals different characteristics. This paper aims at investigating DC and AC coronas on the microscopic scale. To obtain the specific characteristics of DC and AC coronas, a new measurement approach that utilizes a coaxial wire-cylinder corona cage is designed in this paper, and wires of different diameters are used in the experiment. Based on the measurements, the respective microscopic characteristics of DC and AC coronas are analyzed and compared. With differences in characteristics between DC and AC coronas proposed, this study provides useful insights into DC/AC corona discharges on transmission line applications.

  16. Adsorption characteristics of alkanes onto carbon nanotube bundles: Grand Canonical Monte Carlo simulation

    E-Print Network [OSTI]

    Maruyama, Shigeo

    Adsorption characteristics of alkanes onto carbon nanotube bundles: Grand Canonical Monte Carlo alkane adsorption and separation. Rather than remaining isolated however, nanotubes tend to bundle together, and the adsorption properties of such bundles and subsequent potential for practical alkane

  17. Influences of vegetation characteristics and invertebrate abundance of Rio Grande wild turkey populations, Edwards Plateau, Texas

    E-Print Network [OSTI]

    Randel, Charles Jack

    2005-02-17T23:59:59.000Z

    Since 1970, Rio Grande wild turkey (Meleagris gallapavo intermedia) numbers in the southern region of the Edwards Plateau of Texas have been declining. Nest-site characteristics and invertebrate abundance were hypothesized as limiting wild turkey...

  18. Influence of Inelastic Phenomena on the Actuation Characteristics of High Temperature Shape Memory Alloys

    E-Print Network [OSTI]

    Kumar, Parikshith K.

    2010-07-14T23:59:59.000Z

    Most e orts on High Temperature Shape Memory Alloys (HTSMAs), have focused on improving their work characteristics by thermomechanical treatment methods. However, the in uence of transformation induced plasticity (TRIP) and viscoplasticity during...

  19. 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...

  20. Heat transfer characteristics of a two-pass trapezoidal channel and a novel heat pipe

    E-Print Network [OSTI]

    Lee, Sang Won

    2009-06-02T23:59:59.000Z

    , monocrystalline silicon, beryllium oxide, strontium dichromate, boron oxide, aluminum dichromate, and manganese dichromate, as shown in Fig. 3. The focus of this study is to determine/quantify the thermal characteristics of the QTHP and identify the possible...

  1. Transient method of characteristics via the Adiabatic, Theta, and Multigrid Amplitude Function methods

    E-Print Network [OSTI]

    Shaner, Samuel Christopher

    2014-01-01T23:59:59.000Z

    In this thesis, we investigated the Adiabatic, Theta, and Multigrid Amplitude Function (MAF) methods for solving the Method of Characteristics (MOC) formulation of the time-dependent neutron transport equation. The transient ...

  2. Evaluation of Hydrogen Storage System Characteristics for Light-Duty Vehicle Applications (Poster)

    SciTech Connect (OSTI)

    Thornton, M.; Day, K.; Brooker, A.

    2010-05-01T23:59:59.000Z

    This poster presentation demonstrates an approach to evaluate trade-offs among hydrogen storage system characteristic across several vehicle configurations and estimates the sensitivity of hydrogen storage system improvements on vehicle viability.

  3. Performance characteristics of PM??? samplers in the presence of agricultural dusts

    E-Print Network [OSTI]

    Pargmann, Amber Rae

    2001-01-01T23:59:59.000Z

    , these samplers are not tested in the presence of agriculture dusts, which have a larger mass median diameter (MMD) than urban dusts. This research addressed the performance characteristics of PM??? samplers in the presence of agricultural dusts. Tests in a...

  4. Measurements of static loading characteristics of a Flexurepivot Tilt Pad Hydrodynamic Bearing

    E-Print Network [OSTI]

    Walton, Nicholas Van Edward

    1995-01-01T23:59:59.000Z

    An experimental investigation examining the static loading characteristics of a four-pad, KMC FLEXUREPIVOT Tilt Pad Hydrodynamic Bearing is presented. Tests are conducted on the TRACE Fluid Film Bearing Element Test Rig for journal speeds ranging...

  5. Characteristics of syntactic processing : an examination utilizing behavioral and fMRI techniques

    E-Print Network [OSTI]

    Chen, Evan, 1975-

    2004-01-01T23:59:59.000Z

    This thesis explores two important factors that constrain the syntactic parser of the sentence processing mechanism, syntactic storage costs and plausibility information. It uses behavioral methods to explore the characteristics ...

  6. Cross-domain comparison of quantitative technology improvement using patent derived characteristics

    E-Print Network [OSTI]

    Benson, Christopher Lee

    2014-01-01T23:59:59.000Z

    This thesis compares the performance improvement rates of 28 technological domains with characteristics derived from the patents of the domains, seeking to objectively test theories of how and why technologies change over ...

  7. Apparatus and methods for determining at least one characteristic of a proximate environment

    DOE Patents [OSTI]

    Novascone, Stephen R. (Idaho Falls, ID); West, Phillip B. (Idaho Falls, ID); Anderson, Michael J. (Troy, ID)

    2008-04-15T23:59:59.000Z

    Methods and an apparatus for determining at least one characteristic of an environment are disclosed. A vibrational energy may be imparted into an environment and a magnitude of damping of the vibrational energy may be measured and at least one characteristic of the environment may be determined. Particularly, a vibratory source may be operated and coupled to an environment. At least one characteristic of the environment may be determined based on a shift in at least one steady-state frequency of oscillation of the vibratory source. An apparatus may include at least one vibratory source and a structure for positioning the at least one vibratory source proximate to an environment. Further, the apparatus may include an analysis device for determining at least one characteristic of the environment based at least partially upon shift in a steady-state oscillation frequency of the vibratory source for the given impetus.

  8. A study of hair follicles and their changes as related to wool characteristics in sheep

    E-Print Network [OSTI]

    Patterson, Raleigh Elwood

    1943-01-01T23:59:59.000Z

    ) and Blyth (1926) considered the short fibers that are annual in growth to be characteristic of kemp. The primary difference between kemp and medullated fibers lies almost entirely in their length. Differentiation between the two on this basis is very...

  9. What matters for predicting spatial distributions of trees: Techniques, data, or species characteristics?

    E-Print Network [OSTI]

    Guisan, A.; Zimmermann, N. E.; Elith, J.; Graham, C. H.; Phillips, S.; Peterson, A. Townsend

    2007-10-01T23:59:59.000Z

    Data characteristics and species traits are expected to influence the accuracy with which species' distributions can be modeled and predicted. We compare 10 modeling techniques in terms of predictive power and sensitivity ...

  10. The effect of stratigraphy and soil plasticity on the settlement characteristics of reclaimed surface mined land

    E-Print Network [OSTI]

    Rangel, Jorge Enrique

    1979-01-01T23:59:59.000Z

    THE EFFECT OF STRATIGRAPHY AND SOIL PLASTICITY ON THE SETTLEMENT CHARACTERISTICS OF FECLAIMED SURFACE MINED I~D A Thesis GORGE ENRIQUE RANGEL Submitted to the Graduate College of Texas ASM University in partial fulfillment of the regni ement... for the degree of MASTER OF SCIENCE December 1979 Major Subject: Geology THE EFFECT OF STRATIGRAPHY AND SOIL PLASTICITY ON &HA SETTLEMENT CHARACTERISTICS OF RECLAIMED SURFACE MINED LAI'1D Thesis by JORGE ENRIQDE RANGEL Approved as to style ana content...

  11. A study of the bond characteristics of concrete reinforcing bars coated with epoxy compounds

    E-Print Network [OSTI]

    Desai, Indravadan S

    1964-01-01T23:59:59.000Z

    A STUDY OF THE BOND CHARACTERISTICS OF CONCRETE REINFORCING BARS COATED WITH EPCKY COMPOUNDS A Thesis By Indravadan S. Desai Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May, 1964 Major Subject: Civil Engineering A STUDY OF THE BOND CHARACTERISTICS OF CONCRETE REINFORCING BARS COATED WITH EPOXY COMPOUNDS A Thesis By Indravadan S. Desai Approved as to style and content by: (Chairman...

  12. The Texas Wholesale Meat Distribution Industry -- Structure, Operational Characteristics and Competitive Practices.

    E-Print Network [OSTI]

    Dietrich, Raymond A.

    1976-01-01T23:59:59.000Z

    [Blank Page in Original Bulletin] The Texas Wholesale Meat Distribution Industry - Structure, Operational Characteristics, and Competitive Practices Mentior, of a tradehark or a proprietary product does not constitute a guarantee or warranty... regard to race, color, religion, sex, age, or national origin. [Blank Page in Original Bulletin] CONTENTS Page Highlights Introduction ............9..8...v..000..000*.00.00.t8 1 Structural Characteristics of the U . S . and Texas Wholesale Meat...

  13. The effects of laser irradiation on the electrical characteristics of monolithic resistors

    E-Print Network [OSTI]

    Small, James Edwin

    1980-01-01T23:59:59.000Z

    THE EFFECTS OF LASER IRRADIATION ON THE ELECTRICAL CHARACTERISTICS OF MONOLITHIC RESISTORS A Thesis JAMES EDWIN S~LALL Submitted to the Graduate College of Texas A&K University in partial fulfillment of the requirement for the degree... of MASTER OF' SCIENCE Hay 1980 &'major Subject: Electrical Engineering THE EFFECTS OF LASER IRRADIATION ON THE ELECTRICAL CHARACTERISTICS OF MONOLITHIC RESISTORS A Thesis by JAMES EDr IN SMALL Approved as to content by: (Chairman o Committee) (He...

  14. A study of the bond characteristics of concrete reinforcing bars coated with epoxy compounds

    E-Print Network [OSTI]

    Desai, Indravadan S

    1964-01-01T23:59:59.000Z

    A STUDY OF THE BOND CHARACTERISTICS OF CONCRETE REINFORCING BARS COATED WITH EPCKY COMPOUNDS A Thesis By Indravadan S. Desai Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May, 1964 Major Subject: Civil Engineering A STUDY OF THE BOND CHARACTERISTICS OF CONCRETE REINFORCING BARS COATED WITH EPOXY COMPOUNDS A Thesis By Indravadan S. Desai Approved as to style and content by: (Chairman...

  15. Characteristics of the Department of Energy's Building Inventory 2005-2010

    SciTech Connect (OSTI)

    Loper, Susan A.; Sandusky, William F.

    2012-02-01T23:59:59.000Z

    The Pacific Northwest National Laboratory (PNNL) as part of their on-going support to the Department of Energy's Federal Energy Management Program (FEMP) was asked to analyze special building data for an agency to gain a better understanding of the portfolio characteristics to help better shape implementation of their alternative financing activities. This report provides information for one agency, Department of Energy (DOE), and how those characteristics have changed over time.

  16. Relationships between wool follicle, fleece and body characteristics of Rambouillet rams

    E-Print Network [OSTI]

    Kott, Rodney Wade

    1976-01-01T23:59:59.000Z

    of MASTER OF SCIENCE August 1976 Major Subject: Animal Science RELATIONSHIPS BETWEEN WOOL FOLLICLE, FLEECE AND BODY CHARACTERISTICS OF RAMBOUILLET RAMS A Thesi. s by RODNEY WADE KOTT Approved as to style and content by: (Chairman of Committee...) (Head o f Dep ar tm nt) ~j 7 (Member) (Memb er) August 1976 ABSTRACT Relationships Between Wool Follicle, Fleece and Body Characteristics of Rambouillet Rams. (August 1976) Rodney Wade Kott, B ~ S ~ , Texas A&M University Chairman of Advisory...

  17. End-to-end calculation of the radiation characteristics of VVER-1000 spent fuel assemblies

    SciTech Connect (OSTI)

    Linge, I. I.; Mitenkova, E. F., E-mail: mit@ibrae.ac.ru; Novikov, N. V. [Russian Academy of Sciences, Nuclear Safety Institute (Russian Federation)

    2012-12-15T23:59:59.000Z

    The results of end-to-end calculation of the radiation characteristics of VVER-1000 spent nuclear fuel are presented. Details of formation of neutron and gamma-radiation sources are analyzed. Distributed sources of different types of radiation are considered. A comparative analysis of calculated radiation characteristics is performed with the use of nuclear data from different ENDF/B and EAF files and ANSI/ANS and ICRP standards.

  18. Characteristic initial data and smoothness of Scri. I. Framework and results

    E-Print Network [OSTI]

    Piotr T. Chru?ciel; Tim-Torben Paetz

    2014-09-23T23:59:59.000Z

    We analyze the Cauchy problem for the vacuum Einstein equations with data on a complete light-cone in an asymptotically Minkowskian space-time. We provide conditions on the free initial data which guarantee existence of global solutions of the characteristic constraint equations. We present necessary-and-sufficient conditions on characteristic initial data in $3+1$ dimensions to have no logarithmic terms in an asymptotic expansion at null infinity.

  19. Depositional environment and reservoir characteristics of Frio Sandstone, McCampbell Deep Field, Aransas County, Texas

    E-Print Network [OSTI]

    Turner, James Rickey

    1977-01-01T23:59:59.000Z

    D EPOS ITIONAL ENVIRONMENT AND RESERVOIR CHARACTERISTICS OF FRIO SANDSTONE, MCCAMPBELL DEEP FIELD, ARANSAS COUNI'Y, TEXAS A Thesis by JAMES RICKEY TURNER Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 'l977 Major Subject: Geology DEPOSITIONAL ENVIRONMENT AND RESERVOIR CHARACTERISTICS OF FRIO SANDSTONE& MCCAMPBELL DEEP FIELD& ARANSAS COUNTY, T EXAS A Thesis by JAMES RICKEY TURNER Approved...

  20. Off-design performance characteristics of a twin shaft gas turbine engine with regeneration

    E-Print Network [OSTI]

    Leckie, Todd Stewart

    1984-01-01T23:59:59.000Z

    OFF-DESIGN PERFORMANCE CHARACTERISTICS OF A TWIN SHAFT GAS TURBINE ENGINE WITH RECTION A 'Ihesis TODD STEWART LECKIE Submitted to the Graduate College Texas ABM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1984 Major Subject: Mechanical Engineering OFF-DESIGN PERFORMANCE CHARACTERISTICS OF A TWIN SHAFT GAS TURBINE ENGINE WITH REGENERATION A Thesis by Approved as to style and content by: er E. J 'ns rrman of Corrmittee) Je- 'n Han...

  1. Current characteristics of faculty development in public two-year colleges in Texas

    E-Print Network [OSTI]

    Wesley, Jeanne

    2005-11-01T23:59:59.000Z

    CURRENT CHARACTERISTICS OF FACULTY DEVELOPMENT IN PUBLIC TWO-YEAR COLLEGES IN TEXAS A Dissertation by JEANNE WESLEY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of DOCTOR OF PHILOSOPHY August 2005 Major Subject: Educational Human Resource Development CURRENT CHARACTERISTICS OF FACULTY DEVELOPMENT IN PUBLIC TWO-YEAR COLLEGES IN TEXAS A Dissertation by JEANNE...

  2. Relative radiant heat absorption characteristics of two types of mirror shields and a polished aluminum shield

    E-Print Network [OSTI]

    Herron, Steven Douglas

    1973-01-01T23:59:59.000Z

    RELATIVE RADIANT HEAT ABSORPTION CHARACTERISTICS OF TWO TYPES OF MIRROR SHIELDS AND A POLISHED ALUMINUM SHIELD A Thesis by STEVEN DOUGLAS HERRON Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1973 Major Subject: Industrial Hygiene RELATIVE RADIANT HEAT ABSORPTION CHARACTERISTICS OF TWO TYPES OF MIRROR SHIELDS AND A POLISHED ALUMINUM SHIELD A Thesis by STEVEN DOUGLAS HERRON Approved...

  3. Frictional characteristics of serpentinite from the Motagua fault zone in Guatemala: an experimental study

    E-Print Network [OSTI]

    Dengo, Carlos Arturo

    1978-01-01T23:59:59.000Z

    of the requirement for the degree of MASTER OF SCIENCE December 1978 Mad or Subjec' . " Geology FRICTIONAL CHARACTERISTIC OF SERPENTINITF. FRON THE I", OTAGUA FAULT ZONE Ili GUATENALA: AN EXPERIMENTAL STUDY A Thesis by CARLOS ARTURO DFNGO App", oved... strike-slip, seismogenic faults warrants a systematic i nvesti ga tion to determine ho v it". frictional characteristics may afreet slip along the fault. Five locations aiong the fault zone were sampled to investigate the sliding !rode as a function...

  4. Strength and failure characteristics of sandstones under moderate pore and confining pressures

    E-Print Network [OSTI]

    Neathery, Orphie

    1965-01-01T23:59:59.000Z

    PROCEDURE 31 Selection and Preparation of Samples 31 Procedure for Triaxial Tests 32 Physical Property Determination 33 RESULTS 36 Strength and Failure Characteristics 36 Influence of Physical Properties on Strength Characteristics 45 C ON C L US IO... submerged in the oil until the time of their testing. The remaining unsaturated plugs from each sandstone sample were kept for porosity, permeability, sonic velocity and capillary pressure determinations. 32 Procedure for Triaxial Tests In the triaxial...

  5. The effects of corridor characteristics on motorists' decisions to divert in resonse to time saving messages

    E-Print Network [OSTI]

    Robbins, Charles John

    1993-01-01T23:59:59.000Z

    THE EFFECTS OF CORRIDOR CHARACTERISTICS ON MOTORISTS' DECISIONS TO DIVERT IN RESPONSE TO TIME SAVING MESSAGES A Thesis by CHARLES JOHN ROBBINS Submitted to the Office of Graduate Studies of Texas ASM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1993 Major Subject: Civil Engineering THE EFFECTS OF CORRIDOR CHARACTERISTICS ON MOTORISTS' DECISIONS TO DIVERT IN RESPONSE TO TIME SAVING MESSAGES A Thesis by CHARLES JOHN ROBBINS Approved...

  6. Theory versus experiment of the rotordynamic and leakage characteristics of smooth annular bushing oil seals

    E-Print Network [OSTI]

    Culotta, Vittorio G.

    2005-02-17T23:59:59.000Z

    THEORY VERSUS EXPERIMENT OF THE ROTORDYNAMIC AND LEAKAGE CHARACTERISTICS OF SMOOTH ANNULAR BUSHING OIL SEALS A Thesis by VITTORIO GIUSEPPE CULOTTA 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 2004 Major Subject: Mechanical Engineering THEORY VERSUS EXPERIMENT OF THE ROTORDYNAMIC AND LEAKAGE CHARACTERISTICS OF SMOOTH ANNULAR BUSHING OIL SEALS A...

  7. Mineral Chemistry of Basalts Recovered from Hotspot Snake River Scientific Drilling Project, Idaho: Source and Crystallization Characteristics

    E-Print Network [OSTI]

    Seamons, Kent E.

    between these two sources (deep or shallow mantle). Whole rock compositions were corrected for plagioclase: Source and Crystallization Characteristics Richard W. Bradshaw A thesis submitted to the faculty, Idaho: Source and Crystallization Characteristics Richard W. Bradshaw Department of Geological Sciences

  8. Shower characteristics of particles with momenta from up to 100 GeV in the CALICE Scintillator-Tungsten HCAL

    E-Print Network [OSTI]

    Klempt W

    2015-01-01T23:59:59.000Z

    Shower characteristics of particles with momenta from up to 100 GeV in the CALICE Scintillator-Tungsten HCAL

  9. A parameter study to optimizing scintillator characteristics for increased sensitivity in nuclear nonproliferation, safeguards, and security based applications

    SciTech Connect (OSTI)

    Daniel Shy

    2014-08-01T23:59:59.000Z

    A parameter study to optimizing scintillator characteristics for increased sensitivity in nuclear nonproliferation, safeguards, and security based applications

  10. Hilbert's Tenth Problem over Holomorphy Rings of Function Fields of Characteristic 0 Hilbert's Tenth Problem over Holomorphy

    E-Print Network [OSTI]

    Shlapentokh, Alexandra

    Results 4 What do we know about HTP over Function Fields of Characteristic 0? 5 Proving Undecidability about HTP over Function Fields of Characteristic 0? 5 Proving Undecidability over Function Fields Using about HTP over Function Fields of Characteristic 0? 5 Proving Undecidability over Function Fields Using

  11. Characteristics of ethical leaders and the relationship of those characteristics to the ethical decision-making of successful student leaders: a communitarian perspective

    E-Print Network [OSTI]

    Murphy, Pricilla Karen

    1993-01-01T23:59:59.000Z

    ~CZERISTICS OF EIHICAL LEADERS AND THE RELATIONSHIP OF THOSE CHARACTERISTICS 'IO THE ETHICAL DECISION-MAKING OF SUCCESSFUL STUDENT LEADERS: A COMMUNITARIAN PERSPECTIVE A Thesis PRICILLA KAREN MURPHY Submitted to the Office of Graduate Studies... DECISION-MAKING OF SUCCESSFUL STUDENT LEADERS: A ~ITARIAN PERSPECTIVE A Thesis PRICILLA ~ MURPHY Approved as to style and content by: Christine D. Townsend (Chair of Committee) i ricia A. Alexander (Member) Gary E. Briers (Member) Gary E. Briers...

  12. Building Decision Trees for Characteristic Ellipsoid Method to Monitor Power System Transient Behaviors

    SciTech Connect (OSTI)

    Ma, Jian; Diao, Ruisheng; Makarov, Yuri V.; Etingov, Pavel V.; Zhou, Ning; Dagle, Jeffery E.

    2010-12-01T23:59:59.000Z

    The characteristic ellipsoid is a new method to monitor the dynamics of power systems. Decision trees (DTs) play an important role in applying the characteristic ellipsoid method to system operation and analysis. This paper presents the idea and initial results of building DTs for detecting transient dynamic events using the characteristic ellipsoid method. The objective is to determine fault types, fault locations and clearance time in the system using decision trees based on ellipsoids of system transient responses. The New England 10-machine 39-bus system is used for running dynamic simulations to generate a sufficiently large number of transient events in different system configurations. Comprehensive transient simulations considering three fault types, two fault clearance times and different fault locations were conducted in the study. Bus voltage magnitudes and monitored reactive and active power flows are recorded as the phasor measurements to calculate characteristic ellipsoids whose volume, eccentricity, center and projection of the longest axis are used as indices to build decision trees. The DT performances are tested and compared by considering different sets of PMU locations. The proposed method demonstrates that the characteristic ellipsoid method is a very efficient and promising tool to monitor power system dynamic behaviors.

  13. Geologic and production characteristics of the Tight Mesaverde Group: Piceance Basin, Colorado

    SciTech Connect (OSTI)

    Myal, F.R.; Price, E.H.; Hill, R.E.; Kukal, G.C.; Abadie, P.A.; Riecken, C.C.

    1989-07-01T23:59:59.000Z

    The Mesaverde Group of the Piceance Basin in western Colorado has been a pilot study area for government-sponsored tight gas sand research for over 20 years. This study provides a critical comparison of the geologic, production and reservoir characteristics of existing Mesaverde gas producing areas within the basin to those same characteristics at the MWX site near Rifle, Colorado. As will be discussed, the basin has been partitioned into three areas having similar geologic and production characteristics. Stimulation techniques have been reviewed for each partitioned area to determine the most effective stimulation technique currently used in the Mesaverde. This study emphasizes predominantly the southern Piceance Basin because of the much greater production and geologic data there. There may be Mesaverde gas production in northern areas but because of the lack of production and relatively few penetrations, the northern Piceance Basin was not included in the detailed parts of this study. 54 refs., 31 figs., 7 tabs.

  14. Tunneling characteristics in chemical vapor deposited graphenehexagonal boron nitridegraphene junctions

    SciTech Connect (OSTI)

    Roy, T.; Hesabi, Z. R.; Joiner, C. A.; Vogel, E. M. [School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, Georgia 30332 (United States); Liu, L.; Gu, G. [Department of Electrical Engineering and Computer Science, University of Tennessee, 1520 Middle Drive, Knoxville, Tennessee 37996 (United States); Barrera, S. de la; Feenstra, R. M. [Department of Physics, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, Pennsylvania 15213 (United States); Chakrabarti, B. [School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, Georgia 30332 (United States); Department of Materials Science and Engineering, University of Texas at Dallas, 800 West Campbell Rd., Richardson, Texas 75080 (United States)

    2014-03-24T23:59:59.000Z

    Large area chemical vapor deposited graphene and hexagonal boron nitride was used to fabricate graphenehexagonal boron nitridegraphene symmetric field effect transistors. Gate control of the tunneling characteristics is observed similar to previously reported results for exfoliated graphenehexagonal boron nitridegraphene devices. Density-of-states features are observed in the tunneling characteristics of the devices, although without large resonant peaks that would arise from lateral momentum conservation. The lack of distinct resonant behavior is attributed to disorder in the devices, and a possible source of the disorder is discussed.

  15. The production characteristics of a solution gas-drive reservoir as measured on a centrifugal model

    E-Print Network [OSTI]

    Goodwin, Robert Jennings

    1955-01-01T23:59:59.000Z

    Mixtures and Cetus Oil - Natural Gas Mixtures Reservoir Pez&ormance Characteristics for Test Number 17 Through Well Number Three with Fluid Number One Reservoir Perfozmanco Characteristics for Test Number 32 Through Well Number One with Fluid Number... data to show that recovery 8?9, . 10 is a function of well spacing for the soluti on gas drive producing mecha- 12 nism while Kaveler has countered the proposition with other data. Tomlinson and Craze and 77uckley have interprei, ed the same API 11...

  16. Superplastic forming characteristics of 2090 (OE-16) and 8090 (SP) Al-Li alloys

    E-Print Network [OSTI]

    Khazi-Syed, Razaq H.

    1992-01-01T23:59:59.000Z

    SUPERPLASTIC FORMING CHARACTERISTICS OF 2090 (OE-16) AND 8090 (SP) AL-LI ALLOYS A Thesis by RAZAQ H. KHAZI-SYED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 1992 Major Subject: Mechanical Engineering SUPERPLASTIC FORMING CHARACTERISTICS OF 2090(OE-16) AND 8090 (SP) AL-LI ALLOYS A Thesis by RAZAQ H. KHAZI-SYED Approved as to style and content by: R. E. Goforth (Chair...

  17. Timber Mills Closures and Procurement Zones Characteristics: Is there a Link?

    E-Print Network [OSTI]

    Gray, Matthew

    .S. Forest Products Economic Importance China, Russia, 10% Brazil, 6% World's Major Industrial Roundwood Sustainable Timber Supply to existing Mills · Procurement zone characteristics ­ Landownership1, 2, 9 ­ Level, 2, 10 ­ Distance to mills8, 13 · Increased demand products & services ­ New industry (biofuels)4

  18. RESEARCH ARTICLE Open Access The effect of patient characteristics on second

    E-Print Network [OSTI]

    Boyer, Edmond

    of cancer survival due to more frequent early detection and advances in cancer treatments, the cancerRESEARCH ARTICLE Open Access The effect of patient characteristics on second primary cancer risk11,14 , Anne-Sophie Woronoff12,14 and Michel Velten1,2,13,14 Abstract Background: Although cancer

  19. Multi-fractal thermal characteristics of the southwestern GIN sea upper layer

    E-Print Network [OSTI]

    Chu, Peter C.

    Multi-fractal thermal characteristics of the southwestern GIN sea upper layer Peter C. Chu Naval describes a multi-fractal analysis on a high-resolution temperature dataset to obtain the nonstationarity matter Published by Elsevier Ltd. doi:10.1016/S0960-0779(03)00041-9 Chaos, Solitons and Fractals 19 (2004

  20. DIOPHANTINE UNDECIDABILITY OF HOLOMORPHY RINGS OF FUNCTION FIELDS OF CHARACTERISTIC 0

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    such an equation has solutions in Z? This question, otherwise known as Hilbert's Tenth Problem ("HTP" in the future]. Also, for a general reference on the subject we suggest [11] and [47]. It turned out that solving HTP characteristic. However we do know that HTP is un- decidable over many function fields and rings

  1. Hydrocarbon Characteristics in Fusion Edge Plasmas from Electron-Molecule and Ion-Surface Collision Experiments

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    1 EX/P4-1 Hydrocarbon Characteristics in Fusion Edge Plasmas from Electron- Molecule and Ion proceeding in the volume before and at the wall. Surface processes involving hydrocarbons and their ions, which are probable vacuum contaminants in plasma devices, and the role of hydrocarbon chemistry

  2. AN EXTRATROPICAL CYCLONE ATLAS A tool for illustrating cyclone structure and evolution characteristics

    E-Print Network [OSTI]

    Dacre, Helen

    1 AN EXTRATROPICAL CYCLONE ATLAS A tool for illustrating cyclone structure and evolution CYCLONE ATLAS A tool for illustrating cyclone structure and evolution characteristics BY H. F. DACRE, M. K in determining the day-to-day weather conditions in many parts of the world through their associated wind

  3. RAS mutation is associated with hyperdiploidy and parental characteristics in pediatric acute lymphoblastic leukemia

    E-Print Network [OSTI]

    California at Berkeley, University of

    RAS mutation is associated with hyperdiploidy and parental characteristics in pediatric acute lymphoblastic leukemia JL Wiemels1 , Y Zhang1 , J Chang2 , S Zheng3 , C Metayer2 , L Zhang2 , MT Smith2 , X Ma4 and cytogenetic factors in a case series of children with leukemia. Diagnostic bone marrow samples from 191

  4. Topic Distillation with Query-Dependent Link Connections and Page Characteristics

    E-Print Network [OSTI]

    Wu, Mingfang

    6 Topic Distillation with Query-Dependent Link Connections and Page Characteristics MINGFANG WU about a topic. Finding such results is called topic distillation. Previous research has shown statistics. This article presents a new approach to improve topic distillation by exploring the use

  5. Stratigraphy and textural characteristics of the 198283 tephra of Galunggung volcano (Indonesia): implications

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Stratigraphy and textural characteristics of the 1982­83 tephra of Galunggung volcano (Indonesia Orléans Cedex 2, France Abstract The Galunggung volcano in western Java (Indonesia) was the site activity, and consequently the corresponding increase in explosivity. Author Keywords: Indonesia

  6. Interregional Migration in Germany: Characteristics and Effects for Regions and Migrants

    E-Print Network [OSTI]

    Pfeifer, Holger

    Interregional Migration in Germany: Characteristics and Effects for Regions and Migrants Christian of economic activity in East Germany initiated enormous migration flows from East to West Germany. People from East Germany moved towards West Germany, where wages are higher and em- ployment opportunities are more

  7. Changes in the characteristics of turkey ejaculated semen and ductus deferens semen with repeated ejaculations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Changes in the characteristics of turkey ejaculated semen and ductus deferens semen with repeated after emptying the d. deferens by repeated ejaculations. In both Large and Small White turkeys, the p. High quality turkey semen is imperative for a successful artificial insemination program

  8. DISPLAY OF FRICTION IN VIRTUAL ENVIRONMENTS BASED ON HUMAN FINGER PAD CHARACTERISTICS

    E-Print Network [OSTI]

    Hollerbach, John M.

    DISPLAY OF FRICTION IN VIRTUAL ENVIRONMENTS BASED ON HUMAN FINGER PAD CHARACTERISTICS A. Nahvi, J City, UT 84112 ABSTRACT A friction display system is proposed for virtual environ- ments. Since a user the frictional properties of the human finger pad on 9 subjects by simultaneously recording force and movement

  9. PART I. THERMAL BREAKDOWN CHARACTERISTICS OF MUNICIPAL SOLID WASTE COMPONENTS IN

    E-Print Network [OSTI]

    Columbia University

    Engineering Columbia University in the City of New York - 3 - waste is an area of deep concern both within and Environmental Engineering Columbia University in the City of New York - 2 - Thermal Breakdown Characteristics to the increasing use of and investment in waste- to-energy technologies in Asia, these two realms of knowledge

  10. Electrical noise characteristics of a doped silicon microcantilever heater-thermometer

    E-Print Network [OSTI]

    King, William P.

    microcantilevers during cantilever self-heating over the temperature range 296781 K. The dominant noise source-thermometers are designed to operate with self-heating, while the preferred operation of piezoresis- tive cantilevers is for minimal self-heating.12,16,17 This paper explores how the electrical noise characteristics of a doped

  11. Some characteristics of formula sets in the whole of p-adics.

    E-Print Network [OSTI]

    Some characteristics of formula sets in the whole of p formula set if it can be defined by some formula of predicate calculus in the two-sorted language of valued fields. Let M, N be two formula subsets of a valued field K. They are (formula) equivalent

  12. Investigation of EPS Characteristics and their Effects on Waste Activated Sludge Digestion

    E-Print Network [OSTI]

    Mountziaris, T. J.

    Investigation of EPS Characteristics and their Effects on Waste Activated Sludge Digestion Thomas be accomplished through use of aerobic or anaerobic self digestion, but choice of digestion type in practice on digestibility, especially in regards to the composition of extracellular polymeric substances (EPS). Samples

  13. Extinction Characteristics of Catalyst-Assisted Combustion in a Stagnation-Point Flow Reactor

    E-Print Network [OSTI]

    Im, Hong G.

    -NOx combustion as would be the case in the gas turbine application. In a premixed combustion mode, increasedExtinction Characteristics of Catalyst-Assisted Combustion in a Stagnation-Point Flow Reactor of detailed surface and gas- phase chemical kinetic models. Parametric studies are con- ducted to investigate

  14. Hydrogen absorption characteristics of oxygen-stabilized rare-earth iron intermetallic compounds

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Hydrogen absorption characteristics of oxygen-stabilized rare-earth iron intermetallic compounds M Abstract. -- The thermal behavior of oxygen-stabilized RjFegO^-hydrogen (R = Y, Dy, Ho) systems was studied decade to the study of the hydrogenation characte- ristics of a variety of intermetallic compounds, our

  15. Effects of Cu Content and Preaging on Precipitation Characteristics in Aluminum Alloy 6022

    E-Print Network [OSTI]

    Laughlin, David E.

    Effects of Cu Content and Preaging on Precipitation Characteristics in Aluminum Alloy 6022 W and artificial aging response in aluminum alloy 6022 were investigated using transmission electron microscopy,are an important group of aluminum alloys that can be although its structure has been proposed

  16. Characteristic Operator Functions for Quantum Input-Plant-Output Models & Coherent Control

    E-Print Network [OSTI]

    J. E. Gough

    2015-01-09T23:59:59.000Z

    We introduce the characteristic operator as the generalization of the usual concept of a transfer function of linear input-plant-output systems to arbitrary quantum nonlinear Markovian input-output models. This is intended as a tool in the characterization of quantum feedback control systems that fits in with the general theory of networks. The definition exploits the linearity of noise differentials in both the plant Heisenberg equations of motion and the differential form of the input-output relations. Mathematically, the characteristic operator is a matrix of dimension equal to the number of outputs times the number of inputs (which must coincide), but with entries that are operators of the plant system. In this sense the characteristic operator retains details of the effective plant dynamical structure and is an essentially quantum object. We illustrate the relevance to model reduction and simplification by showing that the convergence of the characteristic operator in adiabatic elimination limit models requires the same conditions and assumptions appearing in the work on limit quantum stochastic differential theorems of Bouten and Silberfarb. This approach also shows in a natural way that the limit coefficients of the quantum stochastic differential equations in adiabatic elimination problems arise algebraically as Schur complements, and amounts to a model reduction where the fast degrees of freedom are decoupled from the slow ones, and eliminated.

  17. Biomass, Flavonol Levels and Sensory Characteristics of Allium cultivars Grown Hydroponically at Ambient and

    E-Print Network [OSTI]

    Par, Paul W.

    04ICES-136 Biomass, Flavonol Levels and Sensory Characteristics of Allium cultivars Grown growth chambers to evaluate the effect of elevated CO2 (1200 ppm) versus ambient CO2 (400 ppm) on biomass planting (dap). Regardless of cultivar or dap, plants grown at elevated CO2 had greater biomass

  18. Experimental Study of Heat Transfer and Flow Characteristics for a New Type of Air Heater

    E-Print Network [OSTI]

    Zheng, H.; Fan, X.; Li, A.

    2006-01-01T23:59:59.000Z

    . It is found that the integrated characteristics of heat transfer and flow friction increase with the hole's diameter at the same hole density (which is equal to the ratio of the hole's total area to the baffle's area), and the heat transfer rate increases...

  19. Performance Characteristics of the First, State-of-the-art Electric Vehicle Implemented in Chile

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Catlica de Chile)

    Performance Characteristics of the First, State-of-the-art Electric Vehicle Implemented in Chile@ing.puc.cl *University of Concepcin Abstract The first, state-of-the-art electric vehicle implemented in Chile to transform a conventional ICE truck to an electric vehicle. The vehicle used for this transformation

  20. Pulsating Heat Pipes: Thermo-fluidic Characteristics and Comparative Study with Single Phase Thermosyphon

    E-Print Network [OSTI]

    Khandekar, Sameer

    Pulsating Heat Pipes: Thermo-fluidic Characteristics and Comparative Study with Single Phase of the PHP operation. The fundamental thermo-fluidic processes occurring in the device operation gradients is to cause non-equilibrium pressure conditions, which is the primary driving force for thermo