Sample records for description abstract diffuse

  1. ABSTRACT

    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 >InternshipDepartmentNeutrino-Induced1 TEMPERATUREii ABSTRACT This report

  2. Description

    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 Power Administration wouldDECOMPOSITIONPortalToDepth Profile ofDeputyDescription The table

  3. Description

    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 Power Administration wouldDECOMPOSITIONPortalToDepth Profile ofDeputyDescription The

  4. Abstract--This paper presents a description of a Mixed Integer Programming (MIP) solution for solving the PJM Unit

    E-Print Network [OSTI]

    McCalley, James D.

    for solving the PJM Unit Commitment problem. Included is a description of the Day- ahead market clearing into production use at PJM in August, 2004 [1]. The benefits of the MIP formulation compared to the Lagrangian-mail: dan.streiffert@areva- td.com and russ.philbrick@areva-td.com) Andrew Ott is with PJM Interconnection

  5. Environmental site description for a Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) production plant at the Portsmouth Gaseous Diffusion Plant site

    SciTech Connect (OSTI)

    Marmer, G.J.; Dunn, C.P.; Filley, T.H.; Moeller, K.L.; Pfingston, J.M.; Policastro, A.J.; Cleland, J.H.

    1991-09-01T23:59:59.000Z

    Uranium enrichment in the United States has utilized a diffusion process to preferentially enrich the U-235 isotope in the uranium product. In the 1970s, the US Department of Energy (DOE) began investigating more efficient and cost-effective enrichment technologies. In January 1990, the Secretary of Energy approved a plan for the demonstration and deployment of the Uranium Atomic Vapor Laser isotope Separation (U-AVLIS) technology with the near-term goal to provide the necessary information to make a deployment decision by November 1992. Initial facility operation is anticipated for 1999. A programmatic document for use in screening DOE sites to locate a U-AVLIS production plant was developed and implemented in two parts. The first part consisted of a series of screening analyses, based on exclusionary and other criteria, that identified a reasonable number of candidate sites. The final evaluation, which included sensitivity studies, identified the Oak Ridge Gaseous Diffusion Plant (ORGDP) site, the Paducah Gaseous Diffusion Plant (PGDP) site, and the Portsmouth Gaseous Diffusion Plant (PORTS) site as having significant advantages over the other sites considered. This environmental site description (ESD) provides a detailed description of the PORTS site and vicinity suitable for use in an environmental impact statement (EIS). This report is based on existing literature, data collected at the site, and information collected by Argonne National Laboratory (ANL) staff during site visits. The organization of the ESD is as follows. Topics addressed in Sec. 2 include a general site description and the disciplines of geology, water resources, biotic resources, air resources, noise, cultural resources, land use. Socioeconomics, and waste management. Identification of any additional data that would be required for an EIS is presented in Sec. 3.

  6. Environmental site description for a Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) production plant at the Paducah Gaseous Diffusion Plant site

    SciTech Connect (OSTI)

    Marmer, G.J.; Dunn, C.P.; Moeller, K.L.; Pfingston, J.M.; Policastro, A.J.; Yuen, C.R.; Cleland, J.H. (ed.)

    1991-09-01T23:59:59.000Z

    Uranium enrichment in the United States has utilized a diffusion process to preferentially enrich the U-235 isotope in the uranium product. The U-AVLIS process is based on electrostatic extraction of photoionized U-235 atoms from an atomic vapor stream created by electron-beam vaporization of uranium metal alloy. The U-235 atoms are ionized when precisely tuned laser light -- of appropriate power, spectral, and temporal characteristics -- illuminates the uranium vapor and selectively photoionizes the U-235 isotope. A programmatic document for use in screening DOE site to locate a U-AVLIS production plant was developed and implemented in two parts. The first part consisted of a series of screening analyses, based on exclusionary and other criteria, that identified a reasonable number of candidate sites. These sites were subjected to a more rigorous and detailed comparative analysis for the purpose of developing a short list of reasonable alternative sites for later environmental examination. This environmental site description (ESD) provides a detailed description of the PGDP site and vicinity suitable for use in an environmental impact statement (EIS). The report is based on existing literature, data collected at the site, and information collected by Argonne National Laboratory (ANL) staff during a site visit. 65 refs., 15 tabs.

  7. Benchmarking the performance of density functional theory and point charge force fields in their description of sI methane hydrate against diffusion Monte Carlo

    SciTech Connect (OSTI)

    Cox, Stephen J.; Michaelides, Angelos, E-mail: angelos.michaelides@ucl.ac.uk [Thomas Young Centre and London Centre for Nanotechnology, 17–19 Gordon Street, London WC1H 0AH (United Kingdom) [Thomas Young Centre and London Centre for Nanotechnology, 17–19 Gordon Street, London WC1H 0AH (United Kingdom); Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom); Towler, Michael D. [Department of Earth Sciences, University College London Gower Street, London WC1E 6BT (United Kingdom) [Department of Earth Sciences, University College London Gower Street, London WC1E 6BT (United Kingdom); Theory of Condensed Matter Group, Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom); Alfè, Dario [Thomas Young Centre and London Centre for Nanotechnology, 17–19 Gordon Street, London WC1H 0AH (United Kingdom) [Thomas Young Centre and London Centre for Nanotechnology, 17–19 Gordon Street, London WC1H 0AH (United Kingdom); Department of Earth Sciences, University College London Gower Street, London WC1E 6BT (United Kingdom)

    2014-05-07T23:59:59.000Z

    High quality reference data from diffusion Monte Carlo calculations are presented for bulk sI methane hydrate, a complex crystal exhibiting both hydrogen-bond and dispersion dominated interactions. The performance of some commonly used exchange-correlation functionals and all-atom point charge force fields is evaluated. Our results show that none of the exchange-correlation functionals tested are sufficient to describe both the energetics and the structure of methane hydrate accurately, while the point charge force fields perform badly in their description of the cohesive energy but fair well for the dissociation energetics. By comparing to ice I{sub h}, we show that a good prediction of the volume and cohesive energies for the hydrate relies primarily on an accurate description of the hydrogen bonded water framework, but that to correctly predict stability of the hydrate with respect to dissociation to ice I{sub h} and methane gas, accuracy in the water-methane interaction is also required. Our results highlight the difficulty that density functional theory faces in describing both the hydrogen bonded water framework and the dispersion bound methane.

  8. Diffusion model of the non-stoichiometric uranium dioxide

    SciTech Connect (OSTI)

    Moore, Emily, E-mail: emily.moore@cea.fr [CEA Saclay, DEN-DPC-SCCME, 91191 Gif-sur-Yvette Cedex (France); Guéneau, Christine, E-mail: christine.gueneau@cea.fr [CEA Saclay, DEN-DPC-SCCME, 91191 Gif-sur-Yvette Cedex (France); Crocombette, Jean-Paul, E-mail: jean-paul.crocombette@cea.fr [CEA Saclay, DEN DEN, Service de Recherches de Métallurgie Physique, 91191 Gif-sur-Yvette Cedex (France)

    2013-07-15T23:59:59.000Z

    Uranium dioxide (UO{sub 2}), which is used in light water reactors, exhibits a large range of non-stoichiometry over a wide temperature scale up to 2000 K. Understanding diffusion behavior of uranium oxides under such conditions is essential to ensure safe reactor operation. The current understanding of diffusion properties is largely limited by the stoichiometric deviations inherent to the fuel. The present DICTRA-based model considers diffusion across non-stoichiometric ranges described by experimentally available data. A vacancy and interstitial model of diffusion is applied to the U–O system as a function of its defect structure derived from CALPHAD-type thermodynamic descriptions. Oxygen and uranium self and tracer diffusion coefficients are assessed for the construction of a mobility database. Chemical diffusion coefficients of oxygen are derived with respect to the Darken relation and migration energies of defects are evaluated as a function of stoichiometric deviation. - Graphical abstract: Complete description of Oxygen–Uranium diffusion as a function of composition at various temperatures according to the developed Dictra model. - Highlights: • Assessment of a uranium–oxygen diffusion model with Dictra. • Complete description of U–O diffusion over wide temperature and composition range. • Oxygen model includes terms for interstitial and vacancy migration. • Interaction terms between defects help describe non-stoichiometric domain of UO{sub 2±x}. • Uranium model is separated into mobility terms for the cationic species.

  9. Oxygen diffusion in titanite: Lattice diffusion and fast-path diffusion in single crystals

    E-Print Network [OSTI]

    Watson, E. Bruce

    Oxygen diffusion in titanite: Lattice diffusion and fast-path diffusion in single crystals X June 2006 Editor: P. Deines Abstract Oxygen diffusion in natural and synthetic single-crystal titanite be recognized as responsible for oxygen diffusion. The diffusion profiles showed two segments: a steep one close

  10. Environmental site description for a Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) production plant at the Oak Ridge Gaseous Diffusion Plant Site

    SciTech Connect (OSTI)

    Not Available

    1991-09-01T23:59:59.000Z

    In January 1990, the Secretary of Energy approved a plan for the demonstration and deployment of the Uranium Atomic Vapor Laser Isotope Separation (U-AVLIS) technology, with the near-term goal to provide the necessary information to make a deployment decision by November 1992. The U-AVLIS process is based on electrostatic extraction of photoionized U-235 atoms from an atomic vapor stream created by electron-beam vaporization of uranium metal alloy. A programmatic document for use in screening DOE sites to locate the U-AVLIS production plant was developed and implemented in two parts (Wolsko et al. 1991). The first part consisted of a series of screening analyses, based on exclusionary and other criteria, that identified a reasonable number of candidate sites. These sites were then subjected to a more rigorous and detailed comparative analysis for the purpose of developing a short list of reasonable alternative sites for later environmental examination. This environmental site description (ESD) provides a detailed description of the ORGDP site and vicinity suitable for use in an environmental impact statement (EIS). The report is based on existing literature, data collected at the site, and information collected by Argonne National Laboratory (ANL) staff during a site visit. The organization of the ESD is as follows. Topics addressed in Sec. 2 include a general site description and the disciplines of geology, water resources, biotic resources, air resources, noise, cultural resources, land use, socioeconomics, and waste management. Identification of any additional data that would be required for an EIS is presented in Sec. 3. Following the site description and additional data requirements, Sec. 4 provides a short, qualitative assessment of potential environmental issues. 37 refs., 20 figs., 18 tabs.

  11. Adsorption, Desorption, and Diffusion of Nitrogen in a Model...

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

    II. Diffusion Limited Kinetics in Amorphous Adsorption, Desorption, and Diffusion of Nitrogen in a Model Nanoporous Material: II. Diffusion Limited Kinetics in Amorphous Abstract:...

  12. Uranium(VI) Diffusion in Low-Permeability Subsurface Materials...

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

    Uranium(VI) Diffusion in Low-Permeability Subsurface Materials. Uranium(VI) Diffusion in Low-Permeability Subsurface Materials. Abstract: Uranium(VI) diffusion was investigated in...

  13. EBS Radionuclide Transport Abstraction

    SciTech Connect (OSTI)

    J. Prouty

    2006-07-14T23:59:59.000Z

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment (TSPA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers advective transport and diffusive transport from a breached waste package. Advective transport occurs when radionuclides that are dissolved or sorbed onto colloids (or both) are carried from the waste package by the portion of the seepage flux that passes through waste package breaches. Diffusive transport occurs as a result of a gradient in radionuclide concentration and may take place while advective transport is also occurring, as well as when no advective transport is occurring. Diffusive transport is addressed in detail because it is the sole means of transport when there is no flow through a waste package, which may dominate during the regulatory compliance period in the nominal and seismic scenarios. The advective transport rate, when it occurs, is generally greater than the diffusive transport rate. Colloid-facilitated advective and diffusive transport is also modeled and is presented in detail in Appendix B of this report.

  14. Program Description

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

    Program Description Discover E (Engineering) is an evening of interesting, interactive and fun engineering, science, math, and technology demonstrations for K-12 students and their...

  15. EBS Radionuclide Transport Abstraction

    SciTech Connect (OSTI)

    J.D. Schreiber

    2005-08-25T23:59:59.000Z

    The purpose of this report is to develop and analyze the engineered barrier system (EBS) radionuclide transport abstraction model, consistent with Level I and Level II model validation, as identified in ''Technical Work Plan for: Near-Field Environment and Transport: Engineered Barrier System: Radionuclide Transport Abstraction Model Report Integration'' (BSC 2005 [DIRS 173617]). The EBS radionuclide transport abstraction (or EBS RT Abstraction) is the conceptual model used in the total system performance assessment for the license application (TSPA-LA) to determine the rate of radionuclide releases from the EBS to the unsaturated zone (UZ). The EBS RT Abstraction conceptual model consists of two main components: a flow model and a transport model. Both models are developed mathematically from first principles in order to show explicitly what assumptions, simplifications, and approximations are incorporated into the models used in the TSPA-LA. The flow model defines the pathways for water flow in the EBS and specifies how the flow rate is computed in each pathway. Input to this model includes the seepage flux into a drift. The seepage flux is potentially split by the drip shield, with some (or all) of the flux being diverted by the drip shield and some passing through breaches in the drip shield that might result from corrosion or seismic damage. The flux through drip shield breaches is potentially split by the waste package, with some (or all) of the flux being diverted by the waste package and some passing through waste package breaches that might result from corrosion or seismic damage. Neither the drip shield nor the waste package survives an igneous intrusion, so the flux splitting submodel is not used in the igneous scenario class. The flow model is validated in an independent model validation technical review. The drip shield and waste package flux splitting algorithms are developed and validated using experimental data. The transport model considers advective transport and diffusive transport from a breached waste package. Advective transport occurs when radionuclides that are dissolved or sorbed onto colloids (or both) are carried from the waste package by the portion of the seepage flux that passes through waste package breaches. Diffusive transport occurs as a result of a gradient in radionuclide concentration and may take place while advective transport is also occurring, as well as when no advective transport is occurring. Diffusive transport is addressed in detail because it is the sole means of transport when there is no flow through a waste package, which may dominate during the regulatory compliance period in the nominal and seismic scenarios. The advective transport rate, when it occurs, is generally greater than the diffusive transport rate. Colloid-facilitated advective and diffusive transport is also modeled and is presented in detail in Appendix B of this report.

  16. Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate...

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

    diffusion in Lead Zirconate Titanate and Barium Titanate. Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate. Abstract: Hydrogen is a potential clean-burning,...

  17. Hierarchical diffusion

    SciTech Connect (OSTI)

    Bachas, C.P.

    1988-02-01T23:59:59.000Z

    We review the solution and properties of the diffusion equation in a hierarchical or ultrametric space. 11 refs.

  18. Bioaugmentation for Reduction of Diffuse Pesticide Contamination

    E-Print Network [OSTI]

    Bioaugmentation for Reduction of Diffuse Pesticide Contamination A Bioprophylactic Concept Karin/Repro, Uppsala 2013 #12;Bioaugmentation for Reduction of Diffuse Pesticide Contamination. A Bioprophylactic Concept. Abstract Pesticides and their residues frequently contaminate surface waters and groundwater so

  19. Technical abstracts: Mechanical engineering, 1990

    SciTech Connect (OSTI)

    Broesius, J.Y. (comp.)

    1991-03-01T23:59:59.000Z

    This document is a compilation of the published, unclassified abstracts produced by mechanical engineers at Lawrence Livermore National Laboratory (LLNL) during the calendar year 1990. Many abstracts summarize work completed and published in report form. These are UCRL-JC series documents, which include the full text of articles to be published in journals and of papers to be presented at meetings, and UCID reports, which are informal documents. Not all UCIDs contain abstracts: short summaries were generated when abstracts were not included. Technical Abstracts also provides descriptions of those documents assigned to the UCRL-MI (miscellaneous) category. These are generally viewgraphs or photographs presented at meetings. An author index is provided at the back of this volume for cross referencing.

  20. Diffusive limit for the random Lorentz gas

    E-Print Network [OSTI]

    Alessia Nota

    2014-10-14T23:59:59.000Z

    We review some recent results concerning the derivation of the diffusion equation and the validation of Fick's law for the microscopic model given by the random Lorentz Gas. These results are achieved by using a linear kinetic equation as an intermediate level of description between our original mechanical system and the diffusion equation.

  1. abstract description approach: Topics by E-print Network

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

    many years find the increasing rigor of GHG reporting burdensome. Guidance documents on GHG inventories and reporting provide extensive detail on the scope and rationale of...

  2. AbstractAbstract Improving efficiency of thermoelectric

    E-Print Network [OSTI]

    Walker, D. Greg

    AbstractAbstract · Improving efficiency of thermoelectric energy conversion devices is a major-classical transport models used to predict ZT can effectively predict thermoelectric performance of bulk materials method proposed to couple quantum and scattering effects to predict thermoelectric performance. · NEGF

  3. STEP Intern Job Description

    Broader source: Energy.gov [DOE]

    STEP Intern Job Description, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  4. Shell Model for Atomistic Simulation of Lithium Diffusion in...

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

    Shell Model for Atomistic Simulation of Lithium Diffusion in Mixed MnTi Oxides. Shell Model for Atomistic Simulation of Lithium Diffusion in Mixed MnTi Oxides. Abstract: Mixed...

  5. Imaging Intrinsic Diffusion of Bridge-Bonded Oxygen Vacancies...

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

    Intrinsic Diffusion of Bridge-Bonded Oxygen Vacancies on TiO2(110). Imaging Intrinsic Diffusion of Bridge-Bonded Oxygen Vacancies on TiO2(110). Abstract: Since oxygen atom...

  6. CODED SPECTROSCOPY FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA

    E-Print Network [OSTI]

    ABSTRACT CODED SPECTROSCOPY FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA by Scott Thomas Mc FOR ETHANOL DETECTION IN DIFFUSE, FLUORESCENT MEDIA by Scott Thomas McCain Department of Electrical

  7. Predictability of extreme events in a branching diffusion model Abstract

    E-Print Network [OSTI]

    2010-01-15T23:59:59.000Z

    slide [62, 63], stock price returns [64–66], number of species per genus [67], and many other ...... Taking the operator ?y out of the integration signs, we find. ?.

  8. ABSTRACT & DISSERTATION FORMAT GUIDELINES

    E-Print Network [OSTI]

    Lu, Yi

    2 ABSTRACT & DISSERTATION FORMAT GUIDELINES The Knowledge Navigation Center (second floor these guidelines. The most up-to-date version of the Abstract and Dissertation Format Guidelines is available;2 Abstract Format Guidelines ABSTRACT Title of the Dissertation by by Student's Name Chair: Chair's name Text

  9. Continental magmatism abstracts

    SciTech Connect (OSTI)

    Not Available

    1989-01-01T23:59:59.000Z

    This document contains abstracts on continental magmatism prepared by the International Association of Volcanology and Chemistry of the Earth's Interior. Abstracts are listed alphabetically by senior author, followed by late arrivals and an index. (KJD)

  10. Beta Diffusion Trees Creighton Heaukulani

    E-Print Network [OSTI]

    Edinburgh, University of

    Beta Diffusion Trees Creighton Heaukulani CKH28@CAM.AC.UK David A. Knowles DAVIDKNOWLES Stanford University, Department of Computer Science, Stanford, CA, USA Abstract We define the beta structures over clusters of the particles. With the beta diffu- sion tree, however, multiple copies

  11. An AMR Capable Finite Element Diffusion Solver

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

    Rd. Berkeley, CA 94720, USA E-mail: fisher47@llnl.gov Abstract. We present a novel method for the solution of the diffusion equation on a composite AMR mesh. This approach is...

  12. Is Arnold diffusion relevant to global diffusion?

    E-Print Network [OSTI]

    Seiichiro Honjo; Kunihiko Kaneko

    2003-07-27T23:59:59.000Z

    Global diffusion of Hamiltonian dynamical systems is investigated by using a coupled standard maps. Arnold web is visualized in the frequency space, using local rotation numbers, while Arnold diffusion and resonance overlaps are distinguished by the residence time distributions at resonance layers. Global diffusion in the phase space is shown to be accelerated by diffusion across overlapped resonances generated by the coupling term, rather than Arnold diffusion along the lower-order resonances. The former plays roles of hubs for transport in the phase space, and accelerate the diffusion.

  13. Diffusion and Adsorption of Uranyl Carbonate Species in Nanosized...

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

    and Adsorption of Uranyl Carbonate Species in Nanosized Mineral Fractures. Diffusion and Adsorption of Uranyl Carbonate Species in Nanosized Mineral Fractures. Abstract: Atomistic...

  14. Adsorption, Desorption, and Diffusion of Nitrogen in a Model...

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

    I. Surface Limited Desorption Kinetics in Adsorption, Desorption, and Diffusion of Nitrogen in a Model Nanoporous Material: I. Surface Limited Desorption Kinetics in Abstract: The...

  15. Energy Research Abstracts. [DOE abstract journal

    SciTech Connect (OSTI)

    Not Available

    1981-01-01T23:59:59.000Z

    Energy Research Abstracts (ERA) provides abstracting and indexing coverage of all scientific and technical reports, journal articles, conference papers and proceedings, books, patents, theses, and monographs originated by the US Department of Energy, its laboratories, energy centers, and contractors. ERA also covers other energy information prepared in report form by federal and state government organizations, foreign governments, and domestic and foreign universities and research organizations. ERA coverage of non-report literature is limited to that generated by Department of Energy activity. ERA is comprehensive in its subject scope, encompassing the DOE's research, development, demonstration, and technological programs resulting from its broad charter for energy sources, conservation, safety, environmental impacts, and regulation. Corporate, author, subject, report number, and contract number indexes are included. ERA is available on an exchange basis to universities, research intitutions, industrial firms, and publishers of scientific information. Federal, state, and municipal agencies concerned with energy development, conservation, and usage may obtain ERA free of charge. Inquiries should be directed to the Technical Information Center, P.O. Box 62, Oak Ridge, Tennessee 37830. ERA is available to the public on a subscription basis for 24 semimonthly issues including a semiannual index and an annual index. All citations announced in ERA exist as separate records in the DOE Energy Data Base.

  16. A study of diffusion in binary solutions using spin echoes 

    E-Print Network [OSTI]

    Rousseau, Cecil Clyde

    1962-01-01T23:59:59.000Z

    of Experimentally Determined Diffusion Coefficients of Cyclohexane and Acetone with the Results of NcCall, Douglass, and Anderson . . . . . . . . . 23 INTRODUCTION The available descriptions of the liquid state form a continuous spectrum that extends from... the liquid with unit velocity. The intrinsic diffusion coefficient is now given by Di kT Equation (1-11) is known as the Einstein relation. Thus far, no explicit statement has been made concerning diffusion in binary systems. In addition to the intrinsic...

  17. Abstract Algebra done Concretely

    E-Print Network [OSTI]

    2004-02-19T23:59:59.000Z

    Feb 19, 2004 ... find a book that covered basic abstract algebra with the level and emphasis that ...... c) Substitute these back into the previous equation. 5. Let a ...

  18. BEMS: Abstract book

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    This volume provides abstracts of presentations made at the Sixteenth Meeting of The Bioelectromagnetics Society held June 12-17, 1994 in Copenhagen, Denmark.

  19. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, H.C.; Cheng, Y.S.

    1984-01-01T23:59:59.000Z

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  20. New Monte Carlo schemes for simulating diffusions in discontinuous media

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    New Monte Carlo schemes for simulating diffusions in discontinuous media Antoine Lejay1,2,3,4,5 Sylvain Maire6,7 April 28, 2012 Abstract We introduce new Monte Carlo simulation schemes for diffusions in a dis- continuous media divided in subdomains with piecewise constant diffusivity. These schemes

  1. New Monte Carlo schemes for simulating diffusions in discontinuous media

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    New Monte Carlo schemes for simulating diffusions in discontinuous media Antoine Lejay1,2,3,4,5 Sylvain Maire6,7 December 13, 2012 Abstract We introduce new Monte Carlo simulation schemes for diffusions in a dis- continuous media divided in subdomains with piecewise constant diffusivity. These schemes

  2. 8. Particle Diffusion and Acceleration Proceedings of the Workshop: ``Diffuse Thermal and Relativistic Plasma in Galaxy Clusters''

    E-Print Network [OSTI]

    Boehringer, Hans

    8. Particle Diffusion and Acceleration #12; #12; Proceedings of the Workshop: ``Diffuse Thermal. Feretti & P. Schuecker, MPE Report 271, pp. 249­253 Turbulent Particle Acceleration in the Diffuse Cluster Abstract. In situ particle acceleration is probably occur­ ing in cluster radio haloes. This is suggested

  3. Atomic description of elementary surface processes: diffusion and dynamics

    E-Print Network [OSTI]

    , Universitaa di Trieste, 34127 Trieste, Italy d Laboratorio TASC­­INFM, Basovizza, 34012 Trieste, Italy author. Address: Dipartimento di Fisica Universitaa di Trieste, 34127 Trieste, Italy. Fax: +39-4037- 58565. E-mail address: renzo.rosei@elettra.trieste.it (R. Rosei). 0039-6028/01/$ - see front matter Ó

  4. Abstracting over Semantic Theories 

    E-Print Network [OSTI]

    Holt, Alexander G B

    The topic of this thesis is abstraction over theories of formal semantics for natural language.It is motivated by the belief that a metatheoretical perspective can contribute both to a better theoretical understanding of ...

  5. Abstracts of contributed papers

    SciTech Connect (OSTI)

    Not Available

    1994-08-01T23:59:59.000Z

    This volume contains 571 abstracts of contributed papers to be presented during the Twelfth US National Congress of Applied Mechanics. Abstracts are arranged in the order in which they fall in the program -- the main sessions are listed chronologically in the Table of Contents. The Author Index is in alphabetical order and lists each paper number (matching the schedule in the Final Program) with its corresponding page number in the book.

  6. Forest Landscape Description and

    E-Print Network [OSTI]

    Standiford, Richard B.

    Forest Landscape Description and Inventories a basis for landplanning and design Pacific Southwest landscape description and inventories ­ a basis for land plan- ning and design. Berkeley, Calif., Pacific SW. Illustrates their application in two inventories made to aid managers and landscape architects in planning

  7. NASA Academy Program Descriptions

    E-Print Network [OSTI]

    Wang, Z. Jane

    NASA Academy Program Descriptions October 2010 #12;NASA Academy Program Descriptions 2011 October 11, 2010 1/5 NASA Academy at ARC, GRC, GSFC, and MSFC Websites: Ames: http://academy.arc.nasa.gov Glenn: http://academy.grc.nasa.gov Goddard: http://academy.gsfc.nasa.gov Marshall: http://academy

  8. JOB DESCRIPTION POSITION DATA

    E-Print Network [OSTI]

    Harms, Kyle E.

    JOB DESCRIPTION POSITION DATA Position Number: Title Description: Title Code: Title Level: Employee: _____ Job Summary: Overview of position and its purpose. Select One Select One Select One Select One Select One Select One Select One Select One Select One Select One #12;Office of Human Resource Management Job

  9. 5, 47394799, 2005 description

    E-Print Network [OSTI]

    Boyer, Edmond

    -range and mesoscale dispersion of air pollutants from point sources, such as after an accident in a nuclear power the long-range and mesoscale transport, diffusion, dry and wet deposition, and5 radioactive decay

  10. Job Description Library Create a New Job Description

    E-Print Network [OSTI]

    Pulfrey, David L.

    UBC eRecruit Job Description Library #12;Page 4 Create a New Job Description Navigation: Job Description Library>Add/Edit/Copy Job Descriptions Step 1: Use this page to enter preliminary Job Description, Location: Enter the codes associated with the department. Employment Group, Job Family, Job Code/Classification

  11. AN ALGEBRAIC DESCRIPTION OF ITERATIVE DECODING SCHEMES

    E-Print Network [OSTI]

    Soljanin, Emina

    AN ALGEBRAIC DESCRIPTION OF ITERATIVE DECODING SCHEMES ELKE OFFER AND EMINA SOLJANIN Abstract University of Technology, D- 80290 Munich, Germany, elke@lnt.e-technik.tu-muenchen.de Mathematical Sciences Research Center, Bell Labs, Lucent Technologies, Murray Hill, NJ 07974, USA. emina@lucent.com 1 #12;2 E

  12. Microfabricated diffusion source

    DOE Patents [OSTI]

    Oborny, Michael C. (Albuquerque, NM); Frye-Mason, Gregory C. (Cedar Crest, NM); Manginell, Ronald P. (Albuquerque, NM)

    2008-07-15T23:59:59.000Z

    A microfabricated diffusion source to provide for a controlled diffusion rate of a vapor comprises a porous reservoir formed in a substrate that can be filled with a liquid, a headspace cavity for evaporation of the vapor therein, a diffusion channel to provide a controlled diffusion of the vapor, and an outlet to release the vapor into a gas stream. The microfabricated diffusion source can provide a calibration standard for a microanalytical system. The microanalytical system with an integral diffusion source can be fabricated with microelectromechanical systems technologies.

  13. Exact ratchet description of Parrondo's games with self-transitions

    E-Print Network [OSTI]

    Toral, Raúl

    Exact ratchet description of Parrondo's games with self-transitions Pau Amengual and Ra´ul Toral It is based upon the ratchet effect2 : the combination of two dynamics, both negatively biased, leading ratchet. We were able to obtain a set of equations relating the drift F(x) and diffusion D

  14. Clean Transportation Internship Description

    E-Print Network [OSTI]

    Clean Transportation Internship Description The NC Solar Center at North Carolina State University to other ongoing projects by focusing on time-sensitive tasks. While the main thrust of this internship

  15. SSRL30 Abstracts

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection245C Unlimited ReleaseWelcome ton n u aOct.BALLOT -- pleaseABSTRACT

  16. ABSTRACTS OF PAPERS PUBLISHED

    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 >InternshipDepartmentNeutrino-Induced1 TEMPERATUREii ABSTRACT This

  17. Thermo-quantum diffusion

    E-Print Network [OSTI]

    Roumen Tsekov

    2011-04-15T23:59:59.000Z

    A new approach to thermo-quantum diffusion is proposed and a nonlinear quantum Smoluchowski equation is derived, which describes classical diffusion in the field of the Bohm quantum potential. A nonlinear thermo-quantum expression for the diffusion front is obtained, being a quantum generalization of the classical Einstein law. The quantum diffusion at zero temperature is also described and a new dependence of the position dispersion on time is derived. A stochastic Bohm-Langevin equation is also proposed.

  18. Energy Research Abstracts; (USA)

    SciTech Connect (OSTI)

    Rutkowski, R.W.; Henline, D.M. (eds.)

    1991-01-01T23:59:59.000Z

    Energy Research Abstracts (ERA) provides abstracting and indexing coverage of all scientific and technical reports and patent applications originated by the US Department of Energy, its laboratories, energy centers, and contractors, as well as theses and conference papers and proceedings issued by these organizations in report form. Audiovisual materials, computer media (magnetic tapes, diskettes, etc.), and engineering drawings are included in this definition. ERA also covers other energy information prepared in report form by federal and state government organizations, foreign governments, and domestic and foreign universities and research organizations, provided that the full text of the document has been received by OSTI. Foreign report information is obtained through the International Energy Agency's fourteen nation Energy Technology Data Exchange, the International Atomic Energy Agency's International Nuclear Information System, or nation-to-nation agreements. The purpose of this publication is to announce documents produced or obtained by DOE that are not so readily available as journal articles, books, or patents. ERA does not cover nonreport literature. The scope of ERA encompasses DOE's research, development, demonstration, and technology programs resulting from its broad charter for energy sources, supplies, safety, environmental impacts, and regulation.

  19. Original Workshop Proposal and Description

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

    and Description Original Workshop Proposal and Description Visualization Requirements for Computational Science and Engineering Applications Proposal for a DoE Workshop to Be Held...

  20. NExpTime-complete Description Logics with Concrete Domains

    E-Print Network [OSTI]

    Baader, Franz

    that reasoning with the concrete do- main D (i.e., testing the satis#12;ability of #12;nite conjunctionsChapter 1 NExpTime-complete Description Logics with Concrete Domains Carsten Lutz Abstract. Description Logics (DLs) incorporating concrete domains are useful formalisms for integrated reasoning about

  1. Abstract adiabatic charge pumping

    E-Print Network [OSTI]

    A. Joye; V. Brosco; F. Hekking

    2010-02-05T23:59:59.000Z

    This paper is devoted to the analysis of an abstract formula describing quantum adiabatic charge pumping in a general context. We consider closed systems characterized by a slowly varying time-dependent Hamiltonian depending on an external parameter $\\alpha$. The current operator, defined as the derivative of the Hamiltonian with respect to $\\alpha$, once integrated over some time interval, gives rise to a charge pumped through the system over that time span. We determine the first two leading terms in the adiabatic parameter of this pumped charge under the usual gap hypothesis. In particular, in case the Hamiltonian is time periodic and has discrete non-degenerate spectrum, the charge pumped over a period is given to leading order by the derivative with respect to $\\alpha$ of the corresponding dynamical and geometric phases.

  2. Generation of Web Service Descriptions and Web Service

    E-Print Network [OSTI]

    Generation of Web Service Descriptions and Web Service Module Implementation for Concept University of Science and Technology Software Systems Institute (STS) #12;Abstract Nowadays web services in order to initiate the communication. A web services endpoint communication interface utilizes

  3. Importance of Diffusion in Methanol Photochemistry on TiO2(110...

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

    Importance of Diffusion in Methanol Photochemistry on TiO2(110). Importance of Diffusion in Methanol Photochemistry on TiO2(110). Abstract: The photoactivity of methanol on the...

  4. Intrinsic Diffusion of Hydrogen on Rutile TiO2(110). | EMSL

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

    Diffusion of Hydrogen on Rutile TiO2(110). Intrinsic Diffusion of Hydrogen on Rutile TiO2(110). Abstract: The combined experimental and theoretical study of intrinsic hydrogen...

  5. Adsorption and diffusion of a single Pt atom on gamma-Al2O3 surfaces...

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

    diffusion of a single Pt atom on gamma-Al2O3 surfaces. Adsorption and diffusion of a single Pt atom on gamma-Al2O3 surfaces. Abstract: Motivated to better understand the...

  6. Lithium Diffusion in Li4Ti5O12 at High Temperatures. | EMSL

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

    Lithium Diffusion in Li4Ti5O12 at High Temperatures. Lithium Diffusion in Li4Ti5O12 at High Temperatures. Abstract: Synthesis of the spinel lithium titanate Li4Ti5O12 by an...

  7. Acetone-Assisted Oxygen Vacancy Diffusion on TiO2(110). | EMSL

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

    Acetone-Assisted Oxygen Vacancy Diffusion on TiO2(110). Acetone-Assisted Oxygen Vacancy Diffusion on TiO2(110). Abstract: We have studied the dynamic relationship between acetone...

  8. CRAC2 model description

    SciTech Connect (OSTI)

    Ritchie, L.T.; Alpert, D.J.; Burke, R.P.; Johnson, J.D.; Ostmeyer, R.M.; Aldrich, D.C.; Blond, R.M.

    1984-03-01T23:59:59.000Z

    The CRAC2 computer code is a revised version of CRAC (Calculation of Reactor Accident Consequences) which was developed for the Reactor Safety Study. This document provides an overview of the CRAC2 code and a description of each of the models used. Significant improvements incorporated into CRAC2 include an improved weather sequence sampling technique, a new evacuation model, and new output capabilities. In addition, refinements have been made to the atmospheric transport and deposition model. Details of the modeling differences between CRAC2 and CRAC are emphasized in the model descriptions.

  9. November 2001 Program Description

    E-Print Network [OSTI]

    LBNL-44789 November 2001 Program Description A PC Program WINDOW 5.0 User Manual For Analyzing November 2001 WINDOW 5.0 User Manual Robin Mitchell, Christian Kohler, and Dariush Arasteh Windows, California Dragan Curcija Carli, Inc Amherst, Massachusetts November 2001 © Regents of the University

  10. Market Research Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    development - Market research for enterprise and education adoption - Plan and execute a company-wide pingMarket Research Company Description: A company focused on developing web-based graphical and future products and then develop the necessary strategies and collateral to stay on the bleeding edge

  11. Marketing Plan Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    productivity without the jitters/crash of normal energy drinks and shots. Short Project Name: Internet groups would generate the most profit? How can we cross-market/up-sell to our email database and 20K the model) Company Description: We are a rapidly growing, subscription-based, finance and technology company

  12. Languages Mentor Job description

    E-Print Network [OSTI]

    Anderson, Jim

    Blue 1 Languages Mentor Job description Department: Student Administration and Registry Location: Varies - as advised by the Outreach and Partnership Team Job title: Languages Mentor Responsible to: UK overall for e-mentoring 4 mentees (based on a rate of £6.42 per hour this amounts an average of 30 minutes

  13. Diffuse optical imaging of the whole head Maria Angela Franceschini

    E-Print Network [OSTI]

    Diffuse optical imaging of the whole head Maria Angela Franceschini Danny K. Joseph Theodore J@nmr.mgh.harvard.edu Abstract. Near-Infrared Spectroscopy NIRS and diffuse optical im- aging DOI are increasingly used to detect of optodes in NIRS instruments has hampered measurement of optical signals from diverse brain regions. Our

  14. Detailed Description of Key NIF Milestones for NNSA Description

    E-Print Network [OSTI]

    1 Detailed Description of Key NIF Milestones for NNSA Short Description NIC EP Rev 4.0 Approved = Milestone Reporting Tool, which NNSA uses to support quarterly status reporting of NIC Level 1-2 milestones

  15. Writing Effective Job Descriptions What is a Job Description?

    E-Print Network [OSTI]

    Weaver, Harold A. "Hal"

    Writing Effective Job Descriptions #12;What is a Job Description? A clear explanation of a job and promoting employees) #12;Writing Effective Job Descriptions Identify what needs to be done, how work is to be performed, what equipment will be used, what working conditions are Describe the Job Define Skills

  16. Diffusion and Propagation Problems in Some Ramified Domains with a Fractal Boundary

    E-Print Network [OSTI]

    Achdou, Yves

    aimed at simulating the diffusion of medical sprays in lungs. Our goal are more modest here, since physical descriptions of the lungs'physiology and for studies concerning the diffusion of oxygen in the lungs. The geometry under consideration is that of a self-similar ramified bidimensional domain, called

  17. TUGboat, Volume 0 (2060), No. 0 1001 A complex drawing in descriptive geometry

    E-Print Network [OSTI]

    Roegel, Denis

    2060-01-01T23:59:59.000Z

    TUGboat, Volume 0 (2060), No. 0 1001 Graphics A complex drawing in descriptive geometry Denis Roegel Abstract This article describes the reproduction of a complex drawing in descriptive geometry be in descriptive geometry. In this article, I go into the details of the con- struction of a complex drawing, taken

  18. A strong form of Arnold diffusion for two and a half degrees of freedom

    E-Print Network [OSTI]

    Johnson, Raymond L.

    Ã?B2Ã?T, namely, a -neighborhood of the orbit contains T2 Ã? B2 Ã? T. Our proof is a combination a "connected" net of 3-dimensional normally hyperbolic invariant manifolds. To construct diffusing orbits along . . . . . . . . . . . . . . . . . . . . . 19 3.2 Description of double resonances and generic properties at high energy 22 3.3 Description

  19. Memory abstractions for parallel programming

    E-Print Network [OSTI]

    Lee, I-Ting Angelina

    2012-01-01T23:59:59.000Z

    A memory abstraction is an abstraction layer between the program execution and the memory that provides a different "view" of a memory location depending on the execution context in which the memory access is made. Properly ...

  20. Abstract

    E-Print Network [OSTI]

    2008-07-23T23:59:59.000Z

    excite seismic body waves in the earth. One detects these waves at seismic stations distributed over the earth's surface. Wave-equation tomography is derived ...

  1. ABSTRACT

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

    Inc., the Management and Operating Contractor for the DOE's Naval Petroleum and Oil Shale Reserves in Colorado, Utah, and Wyoming. Project work was directed by Project...

  2. Abstracts

    E-Print Network [OSTI]

    Feb 24, 2000 ... A free boundary problem where the curvature and the flux balance ... of laminar flames as an asymptotic limit for high activation energy.

  3. Abstracts

    E-Print Network [OSTI]

    2013-11-13T23:59:59.000Z

    Nov 16, 2013 ... Charles Smart, MIT. Sat, Nov 16, 3:00–3:50, MATH 175. Quantitative stochastic homogenization of non-divergence form elliptic equations.

  4. Abstracts

    E-Print Network [OSTI]

    2012-05-26T23:59:59.000Z

    cus on the classification of ancient solutions in the curve shortening flow and the Ricci flow on ... has applications in heat control at the boundary of a domain.

  5. ABSTRACT

    E-Print Network [OSTI]

    Manfred Mauntz; Jürgen Gegner

    A new online diagnostics system for the continuous condition monitoring of lubricating oils in industrial gearboxes is presented. Characteristic features of emerging component damage, such as wear, contamination or chemical aging, are identified in an early stage. The OilQSens ® sensor effectively controls the proper operation conditions of bearings and cogwheels in gears. Also, the condition of insulating oils in transformers can be monitored. The online diagnostics system measures components of the specific complex impedance of oils. For instance, metal abrasion due to wear debris, broken oil molecules, forming acids or oil soaps result in an increase of the electrical conductivity, which directly

  6. ABSTRACT

    Office of Scientific and Technical Information (OSTI)

    environmental complaints in a dataset which was collected from 575 buildings in the USA. 77% of indoor-environmental complaints were about conditions perceived too hot or too...

  7. Abstract

    E-Print Network [OSTI]

    2007-05-17T23:59:59.000Z

    May 27, 2007 ... role of critical exponents. Regularity of the solutions: ... A large part of the material is taken from the following monograph: • J. L. Vázquez ...

  8. Abstracts

    E-Print Network [OSTI]

    2014-10-27T23:59:59.000Z

    Nov 1, 2014 ... The purpose of Wabash Seminar talks is to present surveys of interest to all analysts, including graduate students and scholars working in ...

  9. ABSTRACT

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

    with an advanced reciprocating engine, hot water heat recovery and a single-effect absorption chiller; a Brooklyn laundry retrofitted with two reciprocating engine generators and...

  10. Abstract:

    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 3,625govInstrumentstdmadapInactiveVisiting the TWP TWP Related LinksATHENA couldAbout BudgetAbout

  11. ABSTRACT

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del(ANL-IN-03-032)8Li (59AJ76) (See the Energy Level79AJ01)8AJ01)TablesAAAS5448

  12. ABSTRACT

    Office of Scientific and Technical Information (OSTI)

    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 742EnergyOnItem Not Found Item Not Found The item youTheWSRC-TR-97-0100WHITE.3RDLead-Acidr_+_/.

  13. ABSTRACT

    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 >InternshipDepartmentNeutrino-Induced1 TEMPERATURE

  14. Abstract

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1 Introduction In the designAbout AboutYouNAbstract In

  15. Abstract

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1 Introduction In the designAbout AboutYouNAbstract

  16. Abstract

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1 Introduction In the designAbout AboutYouNAbstract

  17. Abstract

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1 Introduction In the designAbout

  18. Abstract:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1 Introduction In the designAboutAs the

  19. Abstract:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1 Introduction In the designAboutAs theNew

  20. ABSTRACT

    Office of Scientific and Technical Information (OSTI)

    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 AprilAElectronic InputRudolph A. Marcus and HisEnergy,MeasuringA. A. AbrikosovPublished

  1. Abstract

    Office of Scientific and Technical Information (OSTI)

    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 AprilAElectronic InputRudolph A. Marcus and HisEnergy,MeasuringA.ANUDlSiTM-40

  2. Tungsten diffusion in silicon

    SciTech Connect (OSTI)

    De Luca, A.; Texier, M.; Burle, N.; Oison, V.; Pichaud, B. [Aix-Marseille Université, IM2NP UMR 7334, Faculté des Sciences et Techniques, Campus de Saint-Jérôme, Avenue Escadrille Normandie Niemen - Case 142, F-13397 Marseille Cedex (France); Portavoce, A., E-mail: alain.portavoce@im2np.fr [CNRS, IM2NP UMR 7334, Faculté des Sciences et Techniques, Campus de Saint-Jérôme, Avenue Escadrille Normandie Niemen - Case 142, F-13397 Marseille Cedex (France); Grosjean, C. [STMicroelectronics, Rousset (France)

    2014-01-07T23:59:59.000Z

    Two doses (10{sup 13} and 10{sup 15}?cm{sup ?2}) of tungsten (W) atoms were implanted in different Si(001) wafers in order to study W diffusion in Si. The samples were annealed or oxidized at temperatures between 776 and 960?°C. The diffusion profiles were measured by secondary ion mass spectrometry, and defect formation was studied by transmission electron microscopy and atom probe tomography. W is shown to reduce Si recrystallization after implantation and to exhibit, in the temperature range investigated, a solubility limit close to 0.15%–0.2%, which is higher than the solubility limit of usual metallic impurities in Si. W diffusion exhibits unusual linear diffusion profiles with a maximum concentration always located at the Si surface, slower kinetics than other metals in Si, and promotes vacancy accumulation close to the Si surface, with the formation of hollow cavities in the case of the higher W dose. In addition, Si self-interstitial injection during oxidation is shown to promote W-Si clustering. Taking into account these observations, a diffusion model based on the simultaneous diffusion of interstitial W atoms and W-Si atomic pairs is proposed since usual models used to model diffusion of metallic impurities and dopants in Si cannot reproduce experimental observations.

  3. Lithium diffusion mechanisms in layered intercalation compounds A. Van der Ven*

    E-Print Network [OSTI]

    Ceder, Gerbrand

    Lithium diffusion mechanisms in layered intercalation compounds A. Van der Ven* , G. Ceder; accepted 28 December 2000 Abstract We investigate the mechanisms of lithium diffusion in layered intercalation compounds from ®rst-principles. We focus on LixCoO2 and ®nd that lithium diffusion

  4. ORAL REFERENCE: ICF100152OR EFFECTS OF DIFFUSION ON INTERFACIAL FRACTURE OF

    E-Print Network [OSTI]

    Volinsky, Alex A.

    annealing, lead-frame bonding and service at elevated temperature, diffusion and segregation changeORAL REFERENCE: ICF100152OR EFFECTS OF DIFFUSION ON INTERFACIAL FRACTURE OF MULTILAYER HYBRID-0959 **University of Minnesota, Minneapolis, MN 55455 ABSTRACT In this study, the effect of diffusion on gold

  5. Adaptive multigroup radiation diffusion

    E-Print Network [OSTI]

    Williams, Richard B., Sc. D. Massachusetts Institute of Technology

    2005-01-01T23:59:59.000Z

    This thesis describes the development and implementation of an algorithm for dramatically increasing the accuracy and reliability of multigroup radiation diffusion simulations at low group counts. This is achieved by ...

  6. Journal Diffusion Factors a measure of diffusion? Tove Faber Frandsen

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Journal Diffusion Factors ­ a measure of diffusion? Tove Faber Frandsen Royal School of Library In this paper we show that the measure of diffusion introduced by Ian Rowlands called the Journal Diffusion Factor (JDF) is highly negatively correlated with the number of citations, leading highly cited journals

  7. YUCCA MOUNTAIN SITE DESCRIPTION

    SciTech Connect (OSTI)

    A.M. Simmons

    2004-04-16T23:59:59.000Z

    The ''Yucca Mountain Site Description'' summarizes, in a single document, the current state of knowledge and understanding of the natural system at Yucca Mountain. It describes the geology; geochemistry; past, present, and projected future climate; regional hydrologic system; and flow and transport within the unsaturated and saturated zones at the site. In addition, it discusses factors affecting radionuclide transport, the effect of thermal loading on the natural system, and tectonic hazards. The ''Yucca Mountain Site Description'' is broad in nature. It summarizes investigations carried out as part of the Yucca Mountain Project since 1988, but it also includes work done at the site in earlier years, as well as studies performed by others. The document has been prepared under the Office of Civilian Radioactive Waste Management quality assurance program for the Yucca Mountain Project. Yucca Mountain is located in Nye County in southern Nevada. The site lies in the north-central part of the Basin and Range physiographic province, within the northernmost subprovince commonly referred to as the Great Basin. The basin and range physiography reflects the extensional tectonic regime that has affected the region during the middle and late Cenozoic Era. Yucca Mountain was initially selected for characterization, in part, because of its thick unsaturated zone, its arid to semiarid climate, and the existence of a rock type that would support excavation of stable openings. In 1987, the United States Congress directed that Yucca Mountain be the only site characterized to evaluate its suitability for development of a geologic repository for high-level radioactive waste and spent nuclear fuel.

  8. Chemical oxygen diffusion coefficient measurement by conductivity relaxation--correlation between tracer diffusion

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Chemical oxygen diffusion coefficient measurement by conductivity relaxation--correlation between J. P., Grenier J. C., Loup J. P. ABSTRACT Chemical oxygen diusion coecient ¯(D)was measured the oxygen partial pressure in the surrounding atmosphere of the sample. The consequent evolution

  9. Mechanical Engineering Department technical abstracts

    SciTech Connect (OSTI)

    Denney, R.M. (ed.)

    1982-07-01T23:59:59.000Z

    The Mechanical Engineering Department publishes listings of technical abstracts twice a year to inform readers of the broad range of technical activities in the Department, and to promote an exchange of ideas. Details of the work covered by an abstract may be obtained by contacting the author(s). Overall information about current activities of each of the Department's seven divisions precedes the technical abstracts.

  10. Biological & Environmental Research Abstracts Database

    Office of Scientific and Technical Information (OSTI)

    Welcome to the Administrative section of the Biological and Environmental Research Abstracts Database. Please logon. Logon Name: Password: Logon CommentsEmail Us * Security...

  11. ECOAS 2011 Titles and Abstracts

    E-Print Network [OSTI]

    2011-10-11T23:59:59.000Z

    sociated to other families of representations, according to the so-called .... Abstract: We use the technology of linking algebras and linking groupoids to show.

  12. Student Internship Programs Program Description

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

    Student Internship Programs Program Description The objective of the Laboratory's student internship programs is to provide students with opportunities for meaningful hands- on...

  13. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    Endres. William J.

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (Regular; Twelve and ledges and clean fixtures. Maintain building entrances according to conditions by removing snow and ice

  14. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (9 month, part according to conditions by removing snow and ice, applying sand and salt, and removing debris. Adhere

  15. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (9 month, full according to conditions by removing snow and ice, applying sand and salt, and removing debris. Adhere

  16. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (9 month, full and clean fixtures. Maintain building entrances according to conditions by removing snow and ice, applying

  17. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (Regular; Twelve according to conditions by removing snow and ice, applying sand and salt, and removing debris. Adhere

  18. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (12-month, full according to conditions by removing snow and ice, applying sand and salt, and removing debris. Adhere

  19. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: BUILDING MECHANIC II (Pay, parking lots, elevators, snow conditions, HVAC equipment temperature control systems, pool systems, ice

  20. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN/EVENT ASSOCIATE entrances according to conditions by removing snow and ice, applying sand and salt, and removing debris

  1. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (12-month, full and clean fixtures. Maintain building entrances according to conditions by removing snow and ice, applying

  2. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (12 month, part according to conditions by removing snow and ice, applying sand and salt, and removing debris. Adhere

  3. Clinical Rotation Descriptions-2013 Clinical Rotation Description Forms the Student

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Clinical Rotation Descriptions- 2013 Clinical Rotation Description Forms the Student Completes:1 with a PT 2 from rotation (3), allowing the PT 2 to teach the PT 1. GAs * at end of experience, Clinical Performance Evaluation, Physical Therapy Student Evaluation: Clinical Experience and Instruction 1 page form

  4. OpenVL: A Developer-Level Abstraction of Computer Vision Gregor Miller and Sidney Fels

    E-Print Network [OSTI]

    British Columbia, University of

    OpenVL: A Developer-Level Abstraction of Computer Vision Gregor Miller and Sidney Fels Human- ple language model [Miller and Fels 2013]); the third is a detailed description of the individual

  5. MESOSCALE DESCRIPTION OF DEFECTED MATERIALS

    E-Print Network [OSTI]

    Vinals, Jorge

    MESOSCALE DESCRIPTION OF DEFECTED MATERIALS Jorge Vi~nals School of Physics and Astronomy. Laughlin) Small but finite wavenumber and finite frequency ("mesoscale") response functions and transport;MESOSCALE DESCRIPTION B B B B B B B A B A B A A B B A A A A BB A B Microscopic Mesoscopic Macroscopic vn

  6. Logical Full Abstraction and PCF 

    E-Print Network [OSTI]

    Longley, John R; Plotkin, Gordon

    2000-01-01T23:59:59.000Z

    We introduce the concept of logical full abstraction, generalising the usual equational notion. We consider the language PCF and two extensions with “parallel” operations. The main result is that, for standard ...

  7. Abstract Algebra I Course Page

    E-Print Network [OSTI]

    Abstract Algebra I. MW 4:35-5:55, Skiles 246. OFFICE HOURS: Tues 11-12 or by appointment. Textbook: Topics in Algebra by I.M. Herstein. Topics covered:.

  8. Two types of diffusions at the cathode/electrolyte interface in IT-SOFCs

    SciTech Connect (OSTI)

    Li Zhipeng, E-mail: LI.Zhipeng@nims.go.jp [Global Research Center for Environment and Energy based on Nanomaterials Science, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044 (Japan); Mori, Toshiyuki [Global Research Center for Environment and Energy based on Nanomaterials Science, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044 (Japan); Auchterlonie, Graeme John [Centre for Microscopy and Microanalysis, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia); Zou Jin [Centre for Microscopy and Microanalysis, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia); Division of Materials, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia); Drennan, John [Centre for Microscopy and Microanalysis, University of Queensland, St. Lucia, Brisbane, Queensland 4072 (Australia)

    2011-09-15T23:59:59.000Z

    Analytical transmission electron microscopy, in particular with the combination of energy dispersive X-ray spectroscopy (EDX) and electron energy-loss spectroscopy (EELS), has been performed to investigate the microstructure and microchemistry of the interfacial region between the cathode (La{sub 0.6}Sr{sub 0.4}Co{sub 0.8}Fe{sub 0.2}O{sub 3}, LSCF) and the electrolyte (Gd-doped ceria, GDC). Two types of diffusions, mutual diffusion between cathode and electrolyte as well as the diffusion along grain boundaries, have been clarified. These diffusions suggest that the chemical stability of LSCF and GDC are not as good as previously reported. The results are more noteworthy if we take into consideration the fact that such interdiffusions occur even during the sintering process of cell preparation. - Graphical Abstract: Two types of diffusions, the mutual diffusion and the diffusion along grain boundaries, occurred at the cathode/electrolyte interface of intermediate temperature solid state fuel cells, during cell preparation. The mutual diffusion is denoted by black arrows and the diffusion along grain boundaries assigned by pink arrows. Highlights: > All the cations in cathode (LSCF) and electrolyte (GDC) can mutually diffuse into each other. > Diffusing elements will segregate at grain boundaries or triple junctions around the cathode/electrolyte interface. > Two types of diffusions, the mutual diffusion and diffusion along grain boundaries, have been clarified thereafter.

  9. A local composition model for the prediction of mutual diffusion coefficients in binary liquid mixtures from tracer diffusion coefficients

    E-Print Network [OSTI]

    Zhu, Qingyu; Moggridge, Geoff D.; D’Agostino, Carmine

    2015-04-29T23:59:59.000Z

    conventional techniques (e.g. Van Geet and Adamson, 1964). However, none of these efforts is able to give a full description of the temperature and composition dependence of mutual diffusion coefficients for a range of non-ideal liquid mixture. In particular... . Farad. Soc., 45, 801-818. Hwang, S.C., Robinson, R.L., 1977. Vapor–Liquid equilibriums at 25 oC for nine alcohol- hydrocarbon binary systems. J. Chem. Eng. Data 22,319–325. 24 Johnson, P.A., Babb, A.L., 1956. Self-diffusion in liquids. I...

  10. International Pharmaceutical Abstracts (IPA) What is International Pharmaceutical Abstracts?

    E-Print Network [OSTI]

    Saskatchewan, University of

    topic into the search box. #12;2 2. Click on Search to continue. 3. Enter terms to describe another in your search results. "Or" broadens your search by letting you search for related terms or synonyms. #12-related health topics. Searching International Pharmaceutical Abstracts The example below illustrates a step

  11. Calculation of combined diffusion coefficients in SF{sub 6}-Cu mixtures

    SciTech Connect (OSTI)

    Zhong, Linlin; Wang, Xiaohua, E-mail: xhw@mail.xjtu.edu.cn; Rong, Mingzhe, E-mail: mzrong@mail.xjtu.edu.cn; Wu, Yi [State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Murphy, Anthony B. [CSIRO Manufacturing Flagship, P.O. Box 218, Lindfield, NSW 2070 (Australia)

    2014-10-15T23:59:59.000Z

    Diffusion coefficients play an important role in the description of the transport of metal vapours in gas mixtures. This paper is devoted to the calculation of four combined diffusion coefficients, namely, the combined ordinary diffusion coefficient, combined electric field diffusion coefficient, combined temperature diffusion coefficient, and combined pressure diffusion coefficient in SF{sub 6}-Cu mixtures at temperatures up to 30?000?K. These four coefficients describe diffusion due to composition gradients, applied electric fields, temperature gradients, and pressure gradients, respectively. The influence of copper fluoride and sulfide species on the diffusion coefficients is shown to be negligible. The effect of copper proportion and gas pressures on these diffusion coefficients is investigated. It is shown that increasing the proportion of copper generally increases the magnitude of the four diffusion coefficients, except for copper mole fractions of 90% or more. It is further found that increasing the pressure reduces the magnitude of the coefficients, except for the combined temperature diffusion coefficient, and shifts the maximum of all four coefficients towards higher temperatures. The results presented in this paper can be applied to the simulation of high-voltage circuit breaker arcs.

  12. On description of quantum plasma

    E-Print Network [OSTI]

    S. V. Vladimirov; Yu. O. Tyshetskiy

    2011-01-21T23:59:59.000Z

    A plasma becomes quantum when the quantum nature of its particles significantly affects its macroscopic properties. To answer the question of when the collective quantum plasma effects are important, a proper description of such effects is necessary. We consider here the most common methods of description of quantum plasma, along with the related assumptions and applicability limits. In particular, we analyze in detail the hydrodynamic description of quantum plasma, as well as discuss some kinetic features of analytic properties of linear dielectric response function in quantum plasma. We point out the most important, in our view, fundamental problems occurring already in the linear approximation and requiring further investigation. (submitted to Physics-Uspekhi)

  13. SWITCH Model AND Data Description: 2050 Timeframe................................................ 2 SWITCH Model Description ........................................................................................................2

    E-Print Network [OSTI]

    Kammen, Daniel M.

    , Berkeley. SWITCH Model Description 1. Study Years, Months, Dates and Hours To simulate power system1 SWITCH Model AND Data Description: 2050 Timeframe................................................ 2 SWITCH Model Description

  14. OXYGEN DIFFUSION IN HYPOSTOICHIOMETRIC URANIUM DIOXIDE

    E-Print Network [OSTI]

    Kim, Kee Chul

    2010-01-01T23:59:59.000Z

    Research Division OXYGEN DIFFUSION IN HYPOSTOICHIOMETRIC11905 -DISCLAIMER - OXYGEN DIFFUSION IN HYPOSTOICHIOMETRICc o n e e n i g woroxygen self-diffusion coefficient

  15. Amsterdam Oxford Joint Rescue Forces Team Description Paper

    E-Print Network [OSTI]

    Visser, Arnoud

    Amsterdam Oxford Joint Rescue Forces Team Description Paper Virtual Robot competition Rescue van Weelden1 , Chaim Bastiaan1 , Niels Out1 , Olaf Zwennes1 , Sev´aztian Soffia Ot´arola1 , Julian de://www.jointrescueforces.eu Abstract. With the progress made in active exploration, the robots of the Joint Rescue Forces are capable

  16. SMDP a Simple Multimedia Service Description Protocol on the Internet

    E-Print Network [OSTI]

    Lung, Chung-Horng

    SMDP ­ a Simple Multimedia Service Description Protocol on the Internet Qiang Nelson Yin Chung}@sce.carleton.ca Abstract Downloading multimedia content from the Internet becomes more and more popular. Consumers have. Based on the current model, it is time consuming for consumers to obtain the desired multimedia content

  17. NExpTime-complete Description Logics with Concrete Domains

    E-Print Network [OSTI]

    Baader, Franz

    NExpTime-complete Description Logics with Concrete Domains Carsten Lutz LuFG Theoretical Computer Science RWTH Aachen, Germany lutz@cs.rwth-aachen.de Abstract. Concrete domains are an extension \\concrete properties" of objects such as sizes, weights, and durations. It is known that reasoning with ALC

  18. Investigation of porous media structures using NMR restricted diffusion measurements

    E-Print Network [OSTI]

    Miao, Peizhi

    1993-01-01T23:59:59.000Z

    coefficient which produces a new description of molecule diffusion in porous media. Experimental Details Model porous media chosen for investigation are water saturated glass bead packs of different bead sizes from 50 to 300 microns. First the glass beads... is accessible with the aid of sufficiently developed analysis procedures, NMR techniques can be applied to porous structure analysis. For the hypothesis that water saturated in porous media consists of two phases: water removed from domain boundaries...

  19. Museum Educator Volunteer Job Description

    E-Print Network [OSTI]

    Pulfrey, David L.

    Museum Educator Volunteer Job Description The Beaty Biodiversity Museum, a new museum housing UBC's rich biological collections, is dedicated to enhancing to the public. Volunteer Museum Educators play a vital role in the museum mission

  20. The Description of Large Systems

    E-Print Network [OSTI]

    Pitman, Kent

    1984-09-01T23:59:59.000Z

    In this paper we discuss the problems associated with the description and manipulation of large systems when their sources are not maintained as single fields. We show why and how tools that address these issues, such ...

  1. New Business Opportunity Company Description

    E-Print Network [OSTI]

    Dahl, David B.

    report and analysis Company Description: A billion dollar, middle market private equity firm. We just trading and transaction comps from relevant databases. Assist in valuing new deals and marking to market organization of radiant heating

  2. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    Endres. William J.

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN/EVENT ASSOCIATE to conditions by removing snow and ice, applying sand and salt, and removing debris. Adhere to current uniform

  3. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (12 month/40 and clean fixtures. Maintain building entrances according to conditions by removing snow and ice, applying be exercised over seasonal/temporary university employees and student assistants. QUALIFICATION REQUIREMENTS

  4. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (12 month and ice, applying sand and salt, and removing debris. Adhere to current department uniform policy supervision may be exercised over seasonal/temporary university employees and student assistants

  5. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (12 mos and clean fixtures. Maintain building entrances according to conditions by removing snow and ice, applying be exercised over seasonal/temporary university employees and student assistants. QUALIFICATION REQUIREMENTS

  6. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: CUSTODIAN (9 month/20 hours and clean fixtures. Maintain building entrances according to conditions by removing snow and ice, applying be exercised over seasonal/temporary university employees and student assistants. QUALIFICATION REQUIREMENTS

  7. Online Search Aids Petroleum Abstracts

    E-Print Network [OSTI]

    Reynolds, Albert C.

    to enter the words for the query. The center frame will display the list of terms resulting from the queryOnline Search Aids User Guide Petroleum Abstracts® A Division of The University of Tulsa July 1. A compilation of relevant E&P technical index terms and their relationships, covering the areas of geology

  8. Peridynamic thermal diffusion

    SciTech Connect (OSTI)

    Oterkus, Selda [Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721 (United States); Madenci, Erdogan, E-mail: madenci@email.arizona.edu [Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721 (United States); Agwai, Abigail [Intel Corporation, Chandler, AZ 85226 (United States)

    2014-05-15T23:59:59.000Z

    This study presents the derivation of ordinary state-based peridynamic heat conduction equation based on the Lagrangian formalism. The peridynamic heat conduction parameters are related to those of the classical theory. An explicit time stepping scheme is adopted for numerical solution of various benchmark problems with known solutions. It paves the way for applying the peridynamic theory to other physical fields such as neutronic diffusion and electrical potential distribution.

  9. Diffusion in silicon isotope heterostructures

    SciTech Connect (OSTI)

    Silvestri, Hughes Howland

    2004-05-14T23:59:59.000Z

    The simultaneous diffusion of Si and the dopants B, P, and As has been studied by the use of a multilayer structure of isotopically enriched Si. This structure, consisting of 5 pairs of 120 nm thick natural Si and {sup 28}Si enriched layers, enables the observation of {sup 30}Si self-diffusion from the natural layers into the {sup 28}Si enriched layers, as well as dopant diffusion from an implanted source in an amorphous Si cap layer, via Secondary Ion Mass Spectrometry (SIMS). The dopant diffusion created regions of the multilayer structure that were extrinsic at the diffusion temperatures. In these regions, the Fermi level shift due to the extrinsic condition altered the concentration and charge state of the native defects involved in the diffusion process, which affected the dopant and self-diffusion. The simultaneously recorded diffusion profiles enabled the modeling of the coupled dopant and self-diffusion. From the modeling of the simultaneous diffusion, the dopant diffusion mechanisms, the native defect charge states, and the self- and dopant diffusion coefficients can be determined. This information is necessary to enhance the physical modeling of dopant diffusion in Si. It is of particular interest to the modeling of future electronic Si devices, where the nanometer-scale features have created the need for precise physical models of atomic diffusion in Si. The modeling of the experimental profiles of simultaneous diffusion of B and Si under p-type extrinsic conditions revealed that both species are mediated by neutral and singly, positively charged Si self-interstitials. The diffusion of As and Si under extrinsic n-type conditions yielded a model consisting of the interstitialcy and vacancy mechanisms of diffusion via singly negatively charged self-interstitials and neutral vacancies. The simultaneous diffusion of P and Si has been modeled on the basis of neutral and singly negatively charged self-interstitials and neutral and singly positively charged P species. Additionally, the temperature dependence of the diffusion coefficient of Si in Ge was measured over the temperature range of 550 C to 900 C using a buried Si layer in an epitaxially grown Ge layer.

  10. IN-PACKAGE CHEMISTRY ABSTRACTION

    SciTech Connect (OSTI)

    E. Thomas

    2005-07-14T23:59:59.000Z

    This report was developed in accordance with the requirements in ''Technical Work Plan for Postclosure Waste Form Modeling'' (BSC 2005 [DIRS 173246]). The purpose of the in-package chemistry model is to predict the bulk chemistry inside of a breached waste package and to provide simplified expressions of that chemistry as a function of time after breach to Total Systems Performance Assessment for the License Application (TSPA-LA). The scope of this report is to describe the development and validation of the in-package chemistry model. The in-package model is a combination of two models, a batch reactor model, which uses the EQ3/6 geochemistry-modeling tool, and a surface complexation model, which is applied to the results of the batch reactor model. The batch reactor model considers chemical interactions of water with the waste package materials, and the waste form for commercial spent nuclear fuel (CSNF) waste packages and codisposed (CDSP) waste packages containing high-level waste glass (HLWG) and DOE spent fuel. The surface complexation model includes the impact of fluid-surface interactions (i.e., surface complexation) on the resulting fluid composition. The model examines two types of water influx: (1) the condensation of water vapor diffusing into the waste package, and (2) seepage water entering the waste package as a liquid from the drift. (1) Vapor-Influx Case: The condensation of vapor onto the waste package internals is simulated as pure H{sub 2}O and enters at a rate determined by the water vapor pressure for representative temperature and relative humidity conditions. (2) Liquid-Influx Case: The water entering a waste package from the drift is simulated as typical groundwater and enters at a rate determined by the amount of seepage available to flow through openings in a breached waste package.

  11. Towards Semantic Robot Description Languages Lars Kunze, Tobias Roehm, and Michael Beetz

    E-Print Network [OSTI]

    Cremers, Daniel

    Towards Semantic Robot Description Languages Lars Kunze, Tobias Roehm, and Michael Beetz Intelligent Autonomous Systems, Technische Universit¨at M¨unchen {kunzel, roehm, beetz}@cs.tum.edu Abstract

  12. CANISTER HANDLING FACILITY DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    J.F. Beesley

    2005-04-21T23:59:59.000Z

    The purpose of this facility description document (FDD) is to establish requirements and associated bases that drive the design of the Canister Handling Facility (CHF), which will allow the design effort to proceed to license application. This FDD will be revised at strategic points as the design matures. This FDD identifies the requirements and describes the facility design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This FDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This FDD is part of an iterative design process. It leads the design process with regard to the flowdown of upper tier requirements onto the facility. Knowledge of these requirements is essential in performing the design process. The FDD follows the design with regard to the description of the facility. The description provided in this FDD reflects the current results of the design process.

  13. The Harrison Diffusion Kinetics Regimes in Solute Grain Boundary Diffusion

    SciTech Connect (OSTI)

    Belova, Irina [University of Newcastle, NSW, Australia; Fiedler, T [University of Newcastle, NSW, Australia; Kulkarni, Nagraj S [ORNL; Murch, Prof. Graeme [University of Newcastle, NSW, Australia

    2012-01-01T23:59:59.000Z

    Knowledge of the limits of the principal Harrison kinetics regimes (Type-A, B and C) for grain boundary diffusion is very important for the correct analysis of the depth profiles in a tracer diffusion experiment. These regimes for self-diffusion have been extensively studied in the past by making use of the phenomenological Lattice Monte Carlo (LMC) method with the result that the limits are now well established. The relationship of those self-diffusion limits to the corresponding ones for solute diffusion in the presence of solute segregation to the grain boundaries remains unclear. In the present study, the influence of solute segregation on the limits is investigated with the LMC method for the well-known parallel grain boundary slab model by showing the equivalence of two diffusion models. It is shown which diffusion parameters are useful for identifying the limits of the Harrison kinetics regimes for solute grain boundary diffusion. It is also shown how the measured segregation factor from the diffusion experiment in the Harrison Type-B kinetics regime may differ from the global segregation factor.

  14. BASIC STUDIES OF NON-DIFFUSIVE TRANSPORT IN PLASMAS

    SciTech Connect (OSTI)

    MORALES, GEORGE J [UCLA

    2014-10-25T23:59:59.000Z

    The project expanded and developed mathematical descriptions, and corresponding numerical modeling, of non-diffusive transport to incorporate new perspectives derived from basic transport experiments performed in the LAPD device at UCLA, and at fusion devices throughout the world. By non-diffusive it is meant that the transport of fundamental macroscopic parameters of a system, such as temperature and density, does not follow the standard diffusive behavior predicted by a classical Fokker-Planck equation. The appearance of non-diffusive behavior is often related to underlying microscopic processes that cause the value of a system parameter, at one spatial position, to be linked to distant events, i.e., non-locality. In the LAPD experiments the underlying process was traced to large amplitude, coherent drift-waves that give rise to chaotic trajectories. Significant advances were made in this project. The results have lead to a new perspective about the fundamentals of edge transport in magnetically confined plasmas; the insight has important consequences for worldwide studies in fusion devices. Progress was also made in advancing the mathematical techniques used to describe fractional diffusion.

  15. Abstract DNA-type systems

    E-Print Network [OSTI]

    Diederik Aerts; Marek Czachor

    2005-12-22T23:59:59.000Z

    An abstract DNA-type system is defined by a set of nonlinear kinetic equations with polynomial nonlinearities that admit soliton solutions associated with helical geometry. The set of equations allows for two different Lax representations: A von Neumann form and a Darboux-covariant Lax pair. We explain why non-Kolmogorovian probability models occurring in soliton kinetics are naturally associated with chemical reactions. The most general known characterization of soliton kinetic equations is given and a class of explicit soliton solutions is discussed. Switching between open and closed states is a generic behaviour of the helices. The effect does not crucially depend on the order of nonlinearity (i.e. types of reactions), a fact that may explain why simplified models possess properties occuring in realistic systems. We explain also why fluctuations based on Darboux transformations will not destroy the dynamics but only switch between a finite number of helical structures.

  16. Microviscometric studies on thermal diffusion 

    E-Print Network [OSTI]

    Reyna, Eddie

    1959-01-01T23:59:59.000Z

    for its improvement. This in~estigation was supported in part by the Convsir Division of General Dynamics Corporation. TABLE OF CONTENTS Chapter III INTRODUCTION EXPERINENTAL NETHODS AND PROCEDUPJIS Thermal Diffusion Column Viscosity Measurements.... The main interest of 6 tais work was the molecular weight dependence of the thermal diffusion coefficient and the suitability of thermal diffusion as a method of frac- tionation of polymers. Since the work of Debye and Bueche, applications of thermal...

  17. Engineering Scheme Mentor Job description

    E-Print Network [OSTI]

    Anderson, Jim

    1 Engineering Scheme Mentor Job description Department: Student Administration and Registry and Outreach Team Job title: Engineering Scheme Mentor Responsible to: UK Student Recruitment and Outreach Team Payment and benefits: £100 overall for e-mentoring plus £6.42 per additional hour Duration: Activities

  18. POSITION DESCRIPTION 2012 TRANSFER MENTOR

    E-Print Network [OSTI]

    POSITION DESCRIPTION 2012 TRANSFER MENTOR TRANSFER MENTOR AS A STAFF MEMBER Thank you for your interest in the Transfer Mentor position with Orientation and Transition Programs' (OTP) Transfer Mentoring Program. The Transfer Mentor (TM) is a member of the Orientation and Transition Programs' staff

  19. THE UNIVERSITY OF CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    Portman, Douglas

    1 THE UNIVERSITY OF ROCHESTER CLASSIFICATION DESCRIPTION TITLE: Web Specialist and Analyst DATE: 01 ­ Advancement Service and provide assistance in the development and management of web-based assets, direct solicitations support ­ webpages for print and e-mail marketing support, web development, Share

  20. RF test bench automation Description

    E-Print Network [OSTI]

    Dobigeon, Nicolas

    RF test bench automation Description: Callisto would like to implement automated RF test bench. Three RF test benches have to be studied and automated: LNA noise temperature test bench LNA gain phase of the test benches and an implementation of the automation phase. Tasks: Noise temperature

  1. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION Job Title: STAFF ASSISTANT (N6) Department: J. ROBERT VAN PELT LIBRARY Hourly Rate: MINIMUM $12.65 ­ MAXIMUM $16.20 Supervisor: STRATEGIC INITIATIVES LIBRARIAN SUMMARY: This position participates in a variety of digital library and service

  2. MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION

    E-Print Network [OSTI]

    Endres. William J.

    MICHIGAN TECHNOLOGICAL UNIVERSITY CLASSIFICATION DESCRIPTION JOB TITLE: BUILDING MECHANIC II (pay: Accountable for supervision and maintenance of all operating units in the SDC, MacInnes Ice Arena, Child Care, maintenance, sanitation, customer services and enforcement of SDC, MacInnes Ice Arena, Child Care Center

  3. ARCHITECTURE PROGRAMS AND COURSE DESCRIPTIONS

    E-Print Network [OSTI]

    Kamat, Vineet R.

    2009­2010 ARCHITECTURE PROGRAMS AND COURSE DESCRIPTIONS UNIVERSITY OF MICHIGAN #12;© 2008, degree options, and courses for the UM architecture program. This document is available for download from the Taubman College website at http://www.TaubmanCollege. umich.edu/architecture/bulletin/. If you

  4. Sustainable Internet Architecture PROJECT DESCRIPTION

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    Sustainable Internet Architecture PROJECT DESCRIPTION 1 Introduction The Internet currently plays that the problems in the current Internet architecture stem from its lack of sustainability which impedes future de of challenges. Numerous research studies on a new Internet architecture (e.g., [16, 37, 48, 54, 55]) have

  5. Reaction-Diffusion systems for the microscopic cellular model of the cardiac electric field

    E-Print Network [OSTI]

    Veneroni, Marco

    Reaction-Diffusion systems for the microscopic cellular model of the cardiac electric field Marco-diffusion systems arising from the math- ematical models of the electric activity of cardiac ventricular cells Veneroni Abstract. The paper deals with a mathematical model for the electric activity of the heart

  6. Reaction-Diffusion systems for the macroscopic Bidomain model of the cardiac electric field

    E-Print Network [OSTI]

    Veneroni, Marco

    Reaction-Diffusion systems for the macroscopic Bidomain model of the cardiac electric field Marco Veneroni Abstract. The paper deals with a mathematical model for the electric activity of the heart the mathematical viewpoint the model is made up of a degenerate parabolic reaction diffusion system coupled

  7. Image-Based Rendering for Non-Diffuse Synthetic Scenes Dani Lischinski Ari Rappoport

    E-Print Network [OSTI]

    Rappoport, Ari

    Image-Based Rendering for Non-Diffuse Synthetic Scenes Dani Lischinski Ari Rappoport The Hebrew University Abstract. Most current image-based rendering methods operate under the assumption that all with image-based rendering of non-diffuse synthetic scenes. We introduce a new family of image-based scene

  8. Liquid water transport in fuel cell gas diffusion layers Aimy Ming Jii Bazylak

    E-Print Network [OSTI]

    Victoria, University of

    Liquid water transport in fuel cell gas diffusion layers by Aimy Ming Jii Bazylak Bachelor means, without the permission of the author. #12;ii Liquid water transport in fuel cell gas diffusion State University) Abstract Liquid water management has a major impact on the performance and durability

  9. Wax diffusivity under given thermal gradient: a mathematical model , A. Fasano

    E-Print Network [OSTI]

    Primicerio, Mario

    Wax diffusivity under given thermal gradient: a mathematical model S. Correra , A. Fasano , L. Fusi , M. Primicerio , F. Rosso Abstract In this paper we describe how to obtain wax diffusivity and solubility in a saturated crude oil using the measurements of solid wax deposit in the experimental apparatus

  10. Improving the Accuracy of Diffusion MR Tractography Using RESTORE Lin-Ching Chang1,2

    E-Print Network [OSTI]

    Improving the Accuracy of Diffusion MR Tractography Using RESTORE Lin-Ching Chang1,2 , Carlo Pierpaoli2 1 Department of Electrical Engineering and Computer Science The Catholic University of America, Bethesda, MD, USA Abstract Diffusion magnetic resonance (MR) imaging is an effective tool in the assessment

  11. IMAGING WITH DIFFUSE PHOTON DENSITY WAVES Maureen A. O'Leary

    E-Print Network [OSTI]

    IMAGING WITH DIFFUSE PHOTON DENSITY WAVES Maureen A. O'Leary A DISSERTATION in PHYSICS Presented Chairperson #12;COPYRIGHT Maureen Ann O'Leary 1996 #12;DEDICATION This work is dedicated to Mom, Dad, Terry v without David's support. #12;ABSTRACT IMAGING WITH DIFFUSE PHOTON DENSITY WAVES Maureen A. O'Leary

  12. ASYMPTOTIC EQUIVALENCE FOR INHOMOGENEOUS JUMP DIFFUSION PROCESSES AND WHITE NOISE.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ASYMPTOTIC EQUIVALENCE FOR INHOMOGENEOUS JUMP DIFFUSION PROCESSES AND WHITE NOISE. ESTER MARIUCCI Laboratoire Jean Kuntzmann, Grenoble. Abstract. We prove the global asymptotic equivalence between the experi. These asymptotic equivalences are established by constructing explicit Markov kernels that can be used to reproduce

  13. Fast Multipole Representation of Diffusion Curves and Points Timothy Sun

    E-Print Network [OSTI]

    Grinspun, Eitan

    Fast Multipole Representation of Diffusion Curves and Points Timothy Sun Papoj Thamjaroenporn performed on the fast multipole representation. Abstract We propose a new algorithm for random-access evaluation of diffu- sion curve images (DCIs) using the fast multipole method. Unlike all previous methods

  14. AN ANISOTROPIC DIFFUSION APPROACH FOR EARLY DETECTION OF BREAST CANCER

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    AN ANISOTROPIC DIFFUSION APPROACH FOR EARLY DETECTION OF BREAST CANCER Marius George LINGURARU, Oxford OX2 7BZ, United Kingdom mglin@robots.ox.ac.uk Abstract: The prevalence of breast cancer must provide effective clinical methods to detect cancer and improve life expectancy. Considerable

  15. Turing instability in reaction-diffusion systems with nonlinear diffusion

    SciTech Connect (OSTI)

    Zemskov, E. P., E-mail: zemskov@ccas.ru [Russian Academy of Sciences, Dorodnicyn Computing Center (Russian Federation)

    2013-10-15T23:59:59.000Z

    The Turing instability is studied in two-component reaction-diffusion systems with nonlinear diffusion terms, and the regions in parametric space where Turing patterns can form are determined. The boundaries between super- and subcritical bifurcations are found. Calculations are performed for one-dimensional brusselator and oregonator models.

  16. Submitted to SIGGRAPH 2001 Filling holes in complex surfaces using volumetric diffusion

    E-Print Network [OSTI]

    Stanford University

    plausible, visually pleasing geometry, · distinguish in the output model betSubmitted to SIGGRAPH 2001 Filling holes in complex surfaces using volumetric diffusion Steve Marschner James Davis Matt Garr Marc Levoy Stanford University Abstract We address the problem of building

  17. DIFFUSION IN SOLIDSDIFFUSION IN SOLIDS FICK'S LAWS

    E-Print Network [OSTI]

    Subramaniam, Anandh

    Diffusion bonding To comprehend many materials related phenomenon one must understand Diffusion. The focusDIFFUSION IN SOLIDSDIFFUSION IN SOLIDS FICK'S LAWS KIRKENDALL EFFECT ATOMIC MECHANISMS Diffusion in Solids P.G. Shewmon McGraw-Hill, New York (1963) #12;Oxidation Roles of Diffusion Creep Aging

  18. Environmental Restoration Site-Specific Plan for the Portsmouth Gaseous Diffusion Plant, FY 93

    SciTech Connect (OSTI)

    Not Available

    1993-01-15T23:59:59.000Z

    The purpose of this Site-Specific Plan (SSP) is to describe past, present, and future activities undertaken to implement Environmental Restoration and Waste Management goals at the Portsmouth Gaseous Diffusion Plant (PORTS). The SSP is presented in sections emphasizing Environmental Restoration description of activities, resources, and milestones.

  19. Portable vapor diffusion coefficient meter

    DOE Patents [OSTI]

    Ho, Clifford K. (Albuquerque, NM)

    2007-06-12T23:59:59.000Z

    An apparatus for measuring the effective vapor diffusion coefficient of a test vapor diffusing through a sample of porous media contained within a test chamber. A chemical sensor measures the time-varying concentration of vapor that has diffused a known distance through the porous media. A data processor contained within the apparatus compares the measured sensor data with analytical predictions of the response curve based on the transient diffusion equation using Fick's Law, iterating on the choice of an effective vapor diffusion coefficient until the difference between the predicted and measured curves is minimized. Optionally, a purge fluid can forced through the porous media, permitting the apparatus to also measure a gas-phase permeability. The apparatus can be made lightweight, self-powered, and portable for use in the field.

  20. GROUNDWATER PROTECTION MANAGEMENT PROGRAM DESCRIPTION.

    SciTech Connect (OSTI)

    PAQUETTE,D.E.; BENNETT,D.B.; DORSCH,W.R.; GOODE,G.A.; LEE,R.J.; KLAUS,K.; HOWE,R.F.; GEIGER,K.

    2002-05-31T23:59:59.000Z

    THE DEPARTMENT OF ENERGY ORDER 5400.1, GENERAL ENVIRONMENTAL PROTECTION PROGRAM, REQUIRES THE DEVELOPMENT AND IMPLEMENTATION OF A GROUNDWATER PROTECTION PROGRAM. THE BNL GROUNDWATER PROTECTION MANAGEMENT PROGRAM DESCRIPTION PROVIDES AN OVERVIEW OF HOW THE LABORATORY ENSURES THAT PLANS FOR GROUNDWATER PROTECTION, MONITORING, AND RESTORATION ARE FULLY DEFINED, INTEGRATED, AND MANAGED IN A COST EFFECTIVE MANNER THAT IS CONSISTENT WITH FEDERAL, STATE, AND LOCAL REGULATIONS.

  1. Abstract Scalable Performance Engineering Notation | ORNL

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

    Abstract Scalable Performance Engineering Notation May 01, 2013 Aspen (Abstract Scalable Performance Engineering Notation) is a domain specific language for performance modeling...

  2. Accelerated molecular dynamics and equation-free methods for simulating diffusion in solids.

    SciTech Connect (OSTI)

    Deng, Jie; Zimmerman, Jonathan A.; Thompson, Aidan Patrick; Brown, William Michael (Oak Ridge National Laboratories, Oak Ridge, TN); Plimpton, Steven James; Zhou, Xiao Wang; Wagner, Gregory John; Erickson, Lindsay Crowl

    2011-09-01T23:59:59.000Z

    Many of the most important and hardest-to-solve problems related to the synthesis, performance, and aging of materials involve diffusion through the material or along surfaces and interfaces. These diffusion processes are driven by motions at the atomic scale, but traditional atomistic simulation methods such as molecular dynamics are limited to very short timescales on the order of the atomic vibration period (less than a picosecond), while macroscale diffusion takes place over timescales many orders of magnitude larger. We have completed an LDRD project with the goal of developing and implementing new simulation tools to overcome this timescale problem. In particular, we have focused on two main classes of methods: accelerated molecular dynamics methods that seek to extend the timescale attainable in atomistic simulations, and so-called 'equation-free' methods that combine a fine scale atomistic description of a system with a slower, coarse scale description in order to project the system forward over long times.

  3. Extended Abstract Model Formulation and Predictions

    E-Print Network [OSTI]

    , and energy principles supplemented by appropriate geo- metrical and constitutive relations, 3) a description-stirred reactor in which all variables are at most time dependent. The system is broken into three subsystems

  4. Diffuser for augmenting a wind turbine

    DOE Patents [OSTI]

    Foreman, Kenneth M. (North Bellmore, NY); Gilbert, Barry L. (Westbury, NY)

    1984-01-01T23:59:59.000Z

    A diffuser for augmenting a wind turbine having means for energizing the boundary layer at several locations along the diffuser walls is improved by the addition of a short collar extending radially outward from the outlet of the diffuser.

  5. Appendix 14-D Camp/Clinic Description

    E-Print Network [OSTI]

    Swaddle, John

    Appendix 14-D Camp/Clinic Description Revised August 2010 SPORT CAMP/CLINIC DESCRIPTION FORM) ________________________________________________________ Sport: __________ ___________ Name of Camp/Clinic: _______________________________ Camp Director ____ Double Classroom ____ Plumeri Park ____ Other _____________________ #12;Appendix 14-D Camp/Clinic

  6. LOCH: Open Access Facilitator Job Description (DRAFT) 

    E-Print Network [OSTI]

    McMahon, Jacqueline

    2015-03-23T23:59:59.000Z

    DRAFT Job Description for an Open Access Facilitator job in the University of Edinburgh's College of Humanities and Social Sciences. This draft job description is being made available as part of the Jisc-funded LOCH Project....

  7. Independent Oversight Review, Portsmouth Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    January 2013 Independent Oversight Review, Portsmouth Gaseous Diffusion Plant - January 2013 January 2013 Review of the Portsmouth Gaseous Diffusion Plant Work Planning and Control...

  8. Independent Activity Report, Portsmouth Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    Portsmouth Gaseous Diffusion Plant - August 2011 Independent Activity Report, Portsmouth Gaseous Diffusion Plant - August 2011 August 2011 Orientation Visit to the Portsmouth...

  9. Joint estimation of phase and phase diffusion for quantum metrology

    E-Print Network [OSTI]

    Mihai D. Vidrighin; Gaia Donati; Marco G. Genoni; Xian-Min Jin; W. Steven Kolthammer; M. S. Kim; Animesh Datta; Marco Barbieri; Ian A. Walmsley

    2014-10-20T23:59:59.000Z

    Phase estimation, at the heart of many quantum metrology and communication schemes, can be strongly affected by noise, whose amplitude may not be known, or might be subject to drift. Here, we investigate the joint estimation of a phase shift and the amplitude of phase diffusion, at the quantum limit. For several relevant instances, this multiparameter estimation problem can be effectively reshaped as a two-dimensional Hilbert space model, encompassing the description of an interferometer phase probed with relevant quantum states -- split single-photons, coherent states or N00N states. For these cases, we obtain a trade-off bound on the statistical variances for the joint estimation of phase and phase diffusion, as well as optimum measurement schemes. We use this bound to quantify the effectiveness of an actual experimental setup for joint parameter estimation for polarimetry. We conclude by discussing the form of the trade-off relations for more general states and measurements.

  10. A Macroscopic Description of Self-Organized Criticality Systems and Astrophysical Applications

    E-Print Network [OSTI]

    Aschwanden, Markus J

    2013-01-01T23:59:59.000Z

    We suggest a generalized definition of self-organized criticality (SOC) systems: SOC is a critical state of a nonlinear energy dissipation system that is slowly and continuously driven towards a critical value of a system-wide instability threshold, producing scale-free, fractal-diffusive, and intermittent avalanches with powerlaw-like size distributions. We develop here a macroscopic description of SOC systems that provides an equivalent description of the complex microscopic fine structure, in terms of fractal-diffusive transport (FD-SOC). Quantitative values for the size distributions of SOC parameters (length scales $L$, time scales $T$, fluxes $F$, and energies $E$) are derived from first principles, using the scale-free probability theorem, $N(L) dL \\propto L^{-d}$, for Euclidean space dimension $d$. We apply this model to astrophysical SOC systems, such as lunar craters, the asteroid belt, Saturn ring particles, magnetospheric substorms, radiation belt electrons, solar flares, stellar flares, pulsar gl...

  11. Effects of turbulent diffusion on the chemistry of diffuse clouds

    E-Print Network [OSTI]

    P. Lesaffre; M. Gerin; P. Hennebelle

    2007-04-24T23:59:59.000Z

    Aims. We probe the effect of turbulent diffusion on the chemistry at the interface between a cold neutral medium (CNM) cloudlet and the warm neutral medium (WNM). Methods. We perform moving grid, multifluid, 1D, hydrodynamical simulations with chemistry including thermal and chemical diffusion. The diffusion coefficients are enhanced to account for turbulent diffusion. We post-process the steady-states of our simulations with a crude model of radiative transfer to compute line profiles. Results. Turbulent diffusion spreads out the transition region between the CNM and the WNM. We find that the CNM slightly expands and heats up: its CH and H$_2$ content decreases due to the lower density. The change of physical conditions and diffusive transport increase the H$^+$ content in the CNM which results in increased OH and H$_2$O. Diffusion transports some CO out of the CNM. It also brings H$_2$ into contact with the warm gas with enhanced production of CH$^+$, H$_3^+$, OH and H$_2$O at the interface. O lines are sensitive to the spread of the thermal profile in the intermediate region between the CNM and the WNM. Enhanced molecular content at the interface of the cloud broadens the molecular line profiles and helps exciting transitions of intermediate energy. The relative molecular yield are found higher for bigger clouds. Conclusions. Turbulent diffusion can be the source of additional molecular production and should be included in chemical models of the interstellar medium (ISM). It also is a good candidate for the interpretation of observational problems such as warm H$_2$, CH$^+$ formation and presence of H$_3^+$.

  12. SNF AGING SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    L.L. Swanson

    2005-04-06T23:59:59.000Z

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

  13. Descriptive Model of Generic WAMS

    SciTech Connect (OSTI)

    Hauer, John F.; DeSteese, John G.

    2007-06-01T23:59:59.000Z

    The Department of Energy’s (DOE) Transmission Reliability Program is supporting the research, deployment, and demonstration of various wide area measurement system (WAMS) technologies to enhance the reliability of the Nation’s electrical power grid. Pacific Northwest National Laboratory (PNNL) was tasked by the DOE National SCADA Test Bed Program to conduct a study of WAMS security. This report represents achievement of the milestone to develop a generic WAMS model description that will provide a basis for the security analysis planned in the next phase of this study.

  14. Simulation of Diffusive Lithium Evaporation Onto the NSTX Vessel Walls

    SciTech Connect (OSTI)

    Stotler, D. P.; Skinner, C. H.; Blanchard, W. R.; Krstic, P. S.; Kugel, H. W.; Schneider, H.; Zakharov, L. E.

    2010-12-09T23:59:59.000Z

    A model for simulating the diffusive evaporation of lithium into a helium filled NSTX vacuum vessel is described and validated against an initial set of deposition experiments. The DEGAS 2 based model consists of a three-dimensional representation of the vacuum vessel, the elastic scattering process, and a kinetic description of the evaporated atoms. Additional assumptions are required to account for deuterium out-gassing during the validation experiments. The model agrees with the data over a range of pressures to within the estimated uncertainties. Suggestions are made for more discriminating experiments that will lead to an improved model.

  15. Hot carrier diffusion in graphene

    E-Print Network [OSTI]

    Ruzicka, Brian Andrew; Wang, Shuai; Werake, Lalani Kumari; Weintrub, Ben; Loh, Kian Ping; Zhao, Hui

    2010-11-01T23:59:59.000Z

    We report an optical study of charge transport in graphene. Diffusion of hot carriers in epitaxial graphene and reduced graphene oxide samples are studied using an ultrafast pump-probe technique with a high spatial resolution. Spatiotemporal...

  16. Integrated Project Management System description

    SciTech Connect (OSTI)

    NONE

    1994-09-01T23:59:59.000Z

    The Integrated Program Management System (IPMS) Description is a ``working`` document that describes the work processes of the Uranium Mill Tailings Remedial Action Project Office (UMTRA) and IPMS Group. This document has undergone many revisions since the UMTRA Project began; this revision not only updates the work processes but more clearly explains the relationships between the Project Office, contractors, and other participants. The work process flow style has been revised to better describe Project work and the relationships of participants. For each work process, more background and guidance on ``why`` and ``what is expected`` is given. For example, a description of activity data sheets has been added in the work organization and the Project performance and reporting processes, as well as additional detail about the federal budget process and funding management and improved flow charts and explanations of cost and schedule management. A chapter has been added describing the Cost Reduction/Productivity Improvement Program. The Change Control Board (CCB) procedures (Appendix A) have been updated. Project critical issues meeting (PCIM) procedures have been added as Appendix B. Budget risk assessment meeting procedures have been added as Appendix C. These appendices are written to act as stand-alone documentation for each process. As the procedures are improved and updated, the documentation can be updated separately.

  17. Microviscometric studies on thermal diffusion

    E-Print Network [OSTI]

    Reyna, Eddie

    1959-01-01T23:59:59.000Z

    proportions until Clusiui and Dickel introduced a type of therrail diffusion column 4 which caused a thermal circul~tion in addition to thermal diffusion. With tni' equipment they were able to separate chlorine isotopes. Applying this same method..., it was decided to . onstruct equipment which could measure the viscosity and concentration of 0. 1 ml. samples. It was desired to have the reproduceability of the viscosimeter better than I'X since the dilute solutions to be studied had maximum viscosities...

  18. Boron diffusion in silicon devices

    DOE Patents [OSTI]

    Rohatgi, Ajeet (Atlanta, GA); Kim, Dong Seop (Atlanta, GA); Nakayashiki, Kenta (Smyrna, GA); Rounsaville, Brian (Stockbridge, GA)

    2010-09-07T23:59:59.000Z

    Disclosed are various embodiments that include a process, an arrangement, and an apparatus for boron diffusion in a wafer. In one representative embodiment, a process is provided in which a boric oxide solution is applied to a surface of the wafer. Thereafter, the wafer is subjected to a fast heat ramp-up associated with a first heating cycle that results in a release of an amount of boron for diffusion into the wafer.

  19. Nonlinear Data Transformation with Diffusion Map

    E-Print Network [OSTI]

    ) Others: Laplacian eigenmaps, Hessian eigenmaps, LTSA We apply the diffusion map (Coifman & Lafon 2006

  20. Abstraction Layers for Scalable Microfluidic Biocomputers

    E-Print Network [OSTI]

    Amarasinghe, Saman

    Abstraction Layers for Scalable Microfluidic Biocomputers William Thies1 , John Paul Urbanski2 Hatsopoulos Microfluids Laboratory Massachusetts Institute of Technology {thies, urbanski, thorsen, saman}@mit.edu Abstract. Microfluidic devices are emerging as an attractive technol- ogy for automatically orchestrating

  1. The tropical double description method

    E-Print Network [OSTI]

    Allamigeon, Xavier; Goubault, Eric

    2010-01-01T23:59:59.000Z

    We develop a tropical analogue of the classical double description method allowing one to compute an internal representation (in terms of vertices) of a polyhedron defined externally (by inequalities). The heart of the tropical algorithm is a characterization of the extreme points of a polyhedron in terms of a system of constraints which define it. We show that checking the extremality of a point reduces to checking whether there is only one minimal strongly connected component in an hypergraph. The latter problem can be solved in almost linear time, which allows us to eliminate quickly redundant generators. We report extensive tests (including benchmarks from an application to static analysis) showing that the method outperforms experimentally the previous ones by orders of magnitude. The present tools also lead to worst case bounds which improve the ones provided by previous methods.

  2. Continuous description of fluctuating eccentricities

    E-Print Network [OSTI]

    Jean-Paul Blaizot; Wojciech Broniowski; Jean-Yves Ollitrault

    2014-05-14T23:59:59.000Z

    We consider the initial energy density in the transverse plane of a high energy nucleus-nucleus collision as a random field $\\rho(\\x)$, whose probability distribution $P[\\rho]$, the only ingredient of the present description, encodes all possible sources of fluctuations. We argue that it is a local Gaussian, with a short-range 2-point function, and that the fluctuations relevant for the calculation of the eccentricities that drive the anisotropic flow have small relative amplitudes. In fact, this 2-point function, together with the average density, contains all the information needed to calculate the eccentricities and their variances, and we derive general model independent expressions for these quantities. The short wavelength fluctuations are shown to play no role in these calculations, except for a renormalization of the short range part of the 2-point function. As an illustration, we compare to a commonly used model of independent sources, and recover the known results of this model.

  3. PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY

    E-Print Network [OSTI]

    Rathbun, Julie A.

    r PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY 28th ANNUAL MEETING NI\\SI\\National Aeronautit &II LPI #12;PROGRAM AND ABSTRACTS FOR CLAY MINERALS SOCIETY 28th ANNUAL MEETING Houston, Texas October contains abstracts that have been accepted for presentation at the Clay Minerals Society 28th Annual

  4. Classification and Utilization of Abstractions for Optimization

    E-Print Network [OSTI]

    Yi, Qing

    Classification and Utilization of Abstractions for Optimization Dan Quinlan1 , Markus Schordan2.sabjornsen@fys.uio.no Abstract. We define a novel approach to optimize the use of libraries within applications. We propose that library-defined abstractions be clas- sified to support their automated optimization and by leveraging

  5. RIS-M-2361 DESCRIPTION OF THE RIS PUFF DIFFUSION MODEL

    E-Print Network [OSTI]

    for industrial operations and construction planning. The dispersion of such atmospheric pollutants is commonly-dimensional model simulates the release of Gaussian pollutant puffs and predicts their concentration mixing depth have been considered. INIS descriptors; ADVECTION; AIR POLLUTION; BOUNDARY LAYERS; CLUSTER

  6. Puzzling Phenomenon of Diffuse Interstellar Bands

    E-Print Network [OSTI]

    B. Wszolek

    2007-12-10T23:59:59.000Z

    The discovery of the first diffuse interstellar bands (DIBs) dates back to the pioneering years of stellar spectroscopy. Today, we know about 300 absorption structures of this kind. There exists a great variety of the profiles and intensities of DIBs, so they can not be readily described, classified or characterized. To the present day no reliable identification of the DIBs' carriers has been found. Many carriers of DIBs have been proposed over the years. They ranged from dust grains to free molecules of different kinds, and to more exotic specimens, like hydrogen negative ion. Unfortunately, none of them is responsible for observed DIBs. Furthermore, it was shown that a single carrier cannot be responsible for all known DIBs. It is hard to estimate how many carriers can participate in producing these bands. The problem is further complicated by the fact that to this day it is still impossible to find any laboratory spectrum of any substance which would match the astrophysical spectra. Here, a historical outline concerning DIBs is followed by a brief description of their whole population. Then, a special attention is focused on the procedures trying to extract spectroscopic families within the set of all known DIBs.

  7. Linear diffusion into a Faraday cage.

    SciTech Connect (OSTI)

    Warne, Larry Kevin; Lin, Yau Tang; Merewether, Kimball O.; Chen, Kenneth C.

    2011-11-01T23:59:59.000Z

    Linear lightning diffusion into a Faraday cage is studied. An early-time integral valid for large ratios of enclosure size to enclosure thickness and small relative permeability ({mu}/{mu}{sub 0} {le} 10) is used for this study. Existing solutions for nearby lightning impulse responses of electrically thick-wall enclosures are refined and extended to calculate the nearby lightning magnetic field (H) and time-derivative magnetic field (HDOT) inside enclosures of varying thickness caused by a decaying exponential excitation. For a direct strike scenario, the early-time integral for a worst-case line source outside the enclosure caused by an impulse is simplified and numerically integrated to give the interior H and HDOT at the location closest to the source as well as a function of distance from the source. H and HDOT enclosure response functions for decaying exponentials are considered for an enclosure wall of any thickness. Simple formulas are derived to provide a description of enclosure interior H and HDOT as well. Direct strike voltage and current bounds for a single-turn optimally-coupled loop for all three waveforms are also given.

  8. vol. 161, no. 3 the american naturalist march 2003 A Diffusion-Based Theory of Organism Dispersal in

    E-Print Network [OSTI]

    Gilliam, James F.

    vol. 161, no. 3 the american naturalist march 2003 A Diffusion-Based Theory of Organism Dispersal, and predicting the movements of organisms. Classical diffusion-based models are foundational in theories; Accepted August 30, 2002; Electronically published March 7, 2003 abstract: We develop a general theory

  9. INCOMING DOCUMENT CONTROL FORM DOCUMENT DESCRIPTION ORGANIZATIO

    Office of Legacy Management (LM)

    INCOMING DOCUMENT CONTROL FORM DOCUMENT DESCRIPTION ORGANIZATIO )ATE COMPLETED: ACTION NUMBER: I I I DOCUMENT CONTROL DATE INITIALS DATA BASE: ACTION LOG: FILED: To : Doug...

  10. Technical Qualification Program Description - Integrated Support...

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

    to begin the 18 month qualification period). Technical Qualification Program Description Revision 2, November 2010 5 The position's inclusion in the TQP is: * Specified in the PD...

  11. Machinist Pipeline/Apprentice Program Program Description

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

    Machinist PipelineApprentice Program Program Description The Machinist Pipeline Program was created by the Prototype Fabrication Division to fill a critical need for skilled...

  12. Home energy rating systems: Program descriptions

    SciTech Connect (OSTI)

    Vine, E.; Barnes, B.K.; Ritschard, R.

    1987-02-01T23:59:59.000Z

    This report contains the descriptions of home energy rating and labelling programs (HERS) that were surveyed in January 1986 as part of a national evaluation of HERS.

  13. Automation of Termination: Abstracting CCG through MWG Automation of Termination: Abstracting Calling

    E-Print Network [OSTI]

    Ayala-Rincón, Mauricio

    Automation of Termination: Abstracting CCG through MWG Automation of Termination: Abstracting of Termination: Abstracting CCG through MWG Motivation Termination analysis is a fundamental topic in computer science. While classical results state the undecidability of various termination problems, automated

  14. Hindered diffusion of coal liquids

    SciTech Connect (OSTI)

    Tsotsis, T.T.; Sahimi, M. (University of Southern California, Los Angeles, CA (United States). Dept. of Chemical Engineering); Webster, I.A. (Unocal Corp., Los Angeles, CA (United States))

    1992-01-01T23:59:59.000Z

    The molecules comprising coal liquids can range from less than 10 to several hundred [angstrom] in diameter. Their size is, therefore, comparable to the average pore size of most hydroprocessing catalysts. Thus, during processing, transport of these molecules into the catalyst occurs mainly by configurational'' or hindered diffusion,'' which is the result of two phenomena occurring in the pores; the distribution of solute molecules in the pores is affected by the pores and the solute molecules experience an increased hydrodynamic drag. The field of hindered diffusion has been reviewed by Deen [16]. The earliest studies in the filed were by Renkin et al. [17].

  15. Prediction of Room Air Diffusion for Reduced Diffuser Flow Rates 

    E-Print Network [OSTI]

    Gangisetti, Kavita

    2011-02-22T23:59:59.000Z

    and analytical tool for investigating ventilation inside the system and thus to increase thermal comfort and improve indoor air quality. The room air supply diffuser flow rates can be reduced for less loading with the help of a variable air volume unit...

  16. Content of system design descriptions

    SciTech Connect (OSTI)

    NONE

    1998-10-01T23:59:59.000Z

    A System Design Description (SDD) describes the requirements and features of a system. This standard provides guidance on the expected technical content of SDDs. The need for such a standard was recognized during efforts to develop SDDs for safety systems at DOE Hazard Category 2 nonreactor nuclear facilities. Existing guidance related to the corresponding documents in other industries is generally not suitable to meet the needs of DOE nuclear facilities. Across the DOE complex, different contractors have guidance documents, but they vary widely from site to site. While such guidance documents are valuable, no single guidance document has all the attributes that DOE considers important, including a reasonable degree of consistency or standardization. This standard is a consolidation of the best of the existing guidance. This standard has been developed with a technical content and level of detail intended to be most applicable to safety systems at DOE Hazard Category 2 nonreactor nuclear facilities. Notwithstanding that primary intent, this standard is recommended for other systems at such facilities, especially those that are important to achieving the programmatic mission of the facility. In addition, application of this standard should be considered for systems at other facilities, including non-nuclear facilities, on the basis that SDDs may be beneficial and cost-effective.

  17. Analysis of complex networks using aggressive abstraction.

    SciTech Connect (OSTI)

    Colbaugh, Richard; Glass, Kristin. [New Mexico Institute of Mining and Technology, Socorro, NM; Willard, Gerald [Department of Defense, Ft. Meade, MD

    2008-10-01T23:59:59.000Z

    This paper presents a new methodology for analyzing complex networks in which the network of interest is first abstracted to a much simpler (but equivalent) representation, the required analysis is performed using the abstraction, and analytic conclusions are then mapped back to the original network and interpreted there. We begin by identifying a broad and important class of complex networks which admit abstractions that are simultaneously dramatically simplifying and property preserving - we call these aggressive abstractions -- and which can therefore be analyzed using the proposed approach. We then introduce and develop two forms of aggressive abstraction: 1.) finite state abstraction, in which dynamical networks with uncountable state spaces are modeled using finite state systems, and 2.) onedimensional abstraction, whereby high dimensional network dynamics are captured in a meaningful way using a single scalar variable. In each case, the property preserving nature of the abstraction process is rigorously established and efficient algorithms are presented for computing the abstraction. The considerable potential of the proposed approach to complex networks analysis is illustrated through case studies involving vulnerability analysis of technological networks and predictive analysis for social processes.

  18. Sandia Energy - Online Abstracts and Reports

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

    Abstract (16.KB PDF) Report (2.0MB PDF) "Simulation and Testing of Resin Infusion Manufacturing Processes for Large Composite Structures" D.B. Mastbergen October 2007...

  19. CHAOTICITY OF THE STATIONARY DISTRIBUTION OF RANK-BASED INTERACTING DIFFUSIONS

    E-Print Network [OSTI]

    Abstract. The mean-field limit of systems of rank-based interacting diffusions is known to be described. For all n 1, consider the system of rank-based interacting diffusions, or particles, (1) i {1, . . ., n to the nonlinear (in McKean's sense) stochastic differential equation (2) dX(t) = b(Ft(X(t)))dt + dW(t), Ft(x) = P

  20. 1990 fuel cell seminar: Program and abstracts

    SciTech Connect (OSTI)

    Not Available

    1990-12-31T23:59:59.000Z

    This volume contains author prepared short resumes of the presentations at the 1990 Fuel Cell Seminar held November 25-28, 1990 in Phoenix, Arizona. Contained herein are 134 short descriptions organized into topic areas entitled An Environmental Overview, Transportation Applications, Technology Advancements for Molten Carbonate Fuel Cells, Technology Advancements for Solid Fuel Cells, Component Technologies and Systems Analysis, Stationary Power Applications, Marine and Space Applications, Technology Advancements for Acid Type Fuel Cells, and Technology Advancement for Solid Oxide Fuel Cells.

  1. Reservoir description of Yowlumne field

    E-Print Network [OSTI]

    Rudolph, Mark Alton

    1986-01-01T23:59:59.000Z

    than words can describe. I would also like to thank Tenneco Oil Company and the Cr isman Institute for the log, pressure transient test and production data, without which, this thesis would not have been possible. TABLE OF CONTENTS page ABSTRACT.../30/76). 212 838 Pressure Buildup Data For Well 25-11 (12/15/76) 214 B39 Pressure Buildup Data For Well 25-11 (6/5/78) 217 B40 Pressure Buildup Data For Well 33-11 (3/24/76) B41 Pressure Buildup Data For Well 33-11 (6/7/78) 219 221 B42 Pressure...

  2. STUDENT LABOR POSITION DESCRIPTION Forestry Department

    E-Print Network [OSTI]

    Baltisberger, Jay H.

    approved STUDENT LABOR POSITION DESCRIPTION Forestry Department Most Recently Updated 10/17/00 Position Title: Student Forestry Aid Must work 10 hrs/wk. I. Grade Level: 1­3 (includes full-time, summer and other holiday labor positions) II. Description: A. The following are the essential duties for a Forestry

  3. Internship Description Title: Stellar Solutions Engineering Internship

    E-Print Network [OSTI]

    Virginia Tech

    Internship Description Title: Stellar Solutions ­ Engineering Internship Job Description: The internship will be held at the Stellar National Reconnaissance Office in Washington, DC. Tasks will require a background in intelligence, and familiar with all-source analysis. This internship is flexible throughout

  4. WASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED,

    E-Print Network [OSTI]

    Minimization/ Volume Reduction 0 Solid Radioactive Waste $2,168 $0 $2,168 Vial Crusher for glass vialsWASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED, REUSED, RECYCLED OR CONSERVED IN 2004 WASTE TYPE DESCRIPTION DETAILS * Automotive Waste Substitution 510 Hazardous Waste $1,020 $1,000 $1,000 Aqueous Solvent

  5. WASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED,

    E-Print Network [OSTI]

    labeled chemicals Waste Minimization/ Volume Reduction 0 Solid Radioactive Waste $2,168 $3,795 $2,168 VialWASTE DESCRIPTION TYPE OF PROJECT POUNDS REDUCED, REUSED, RECYCLED OR CONSERVED IN 2003 WASTE TYPE DESCRIPTION DETAILS * Radioactive Waste Source Reduction 1,500 Radioactive Waste $6,000 $2,500 $6,000 Waste

  6. Schedule Worksheet -Table of Contents Subject Description

    E-Print Network [OSTI]

    Pittendrigh, Barry

    Subject Description NUPH NUPH-Nuclear Pharmacy NUR NUR-Nursing OBHR OBHR-Orgnztnl Bhvr &Hum Resrce OLS OLS Description CLPH CLPH-Clinical Pharmacy CMCI CMCI-CIC Common Market CMPL CMPL-Comparative Literature CNIT CNIT Sci NS NS-Naval Science NUCL NUCL-Nuclear Engineering #12;Schedule Worksheet - Table of Contents

  7. Schedule Worksheet -Table of Contents Subject Description

    E-Print Network [OSTI]

    Ginzel, Matthew

    ;Schedule Worksheet - Table of Contents Subject Description NUPH NUPH-Nuclear Pharmacy NUR NUR-Nursing NUTR Description CLPH CLPH-Clinical Pharmacy CMCI CMCI-CIC Common Market CMPL CMPL-Comparative Literature CNIT CNIT-Music History & Theory NRES NRES-Natural Res & Environ Sci NS NS-Naval Science NUCL NUCL-Nuclear Engineering #12

  8. CHAPTER 5. PLASMA DESCRIPTIONS I: KINETIC, TWO-FLUID 1 Plasma Descriptions I

    E-Print Network [OSTI]

    Callen, James D.

    CHAPTER 5. PLASMA DESCRIPTIONS I: KINETIC, TWO-FLUID 1 Chapter 5 Plasma Descriptions I: Kinetic, Two-Fluid Descriptions of plasmas are obtained from extensions of the kinetic theory of gases of charged particles in the plasma, and because the electric and magnetic fields in the plasma must

  9. A Guide to the Petroleum Abstracts

    E-Print Network [OSTI]

    Reynolds, Albert C.

    pertaining to petroleum exploration and production. Journals, patent gazettes, full-text patents, conferencePetroleum Abstracts A Guide to the Petroleum Abstracts Information Service Serving the Exploration & Production Sector of the Oil & Gas Industry Including: PA List of Publications Reviewed PA Selected

  10. Abstract Interpretation and Object-oriented Programming

    E-Print Network [OSTI]

    Cortesi, Tino

    and logic programming, have been in the past a very fertile test bed for the development of sophisticated abstract domains and specialized fix- point algorithms. On the other hand, when looking overshadow the great potentialities of abstract interpretation on the mainstream programming platforms where

  11. Synergistic diffuser/heat-exchanger design

    E-Print Network [OSTI]

    Lazzara, David S. (David Sergio), 1980-

    2004-01-01T23:59:59.000Z

    The theoretical and numerical evaluation of synergistic diffusing heat-exchanger design is presented. Motivation for this development is based on current diffuser and heat-exchange technologies in cogeneration plants, which ...

  12. OXYGEN DIFFUSION IN UO2-x

    E-Print Network [OSTI]

    Kim, K.C.

    2013-01-01T23:59:59.000Z

    ~ K.C. K:i.m, "Oxygen Diffusion in Hypostoichiometricsystem for enriching uo 2 in oxygen-18 or for stoichiometry+nal of Nuclear Materials OXYGEN DIFFUSION IN U0 2 _:x K.C.

  13. MICROFLUIDIC CONTROL OF STEM CELL DIFFUSIBLE SIGNALING

    E-Print Network [OSTI]

    Voldman, Joel

    MICROFLUIDIC CONTROL OF STEM CELL DIFFUSIBLE SIGNALING Katarina Blagovi, Lily Y. Kim, Alison M cell differentiation. KEYWORDS: Embryonic stem cells, microfluidic perfusion, diffusible signaling; they secrete molecules to which they respond. Microfluidics offers a potential solution to this challenge

  14. Nuclear criticality safety evaluation of Spray Booth Operations in X-705, Portsmouth Gaseous Diffusion Plant

    SciTech Connect (OSTI)

    Sheaffer, M.K.; Keeton, S.C.

    1993-09-20T23:59:59.000Z

    This report evaluates nuclear criticality safety for Spray Booth Operations in the Decontamination and Recovery Facility, X-705, at the Portsmouth Gaseous Diffusion Plant. A general description of current procedures and related hardware/equipment is presented. Control parameters relevant to nuclear criticality safety are explained, and a consolidated listing of administrative controls and safety systems is developed. Based on compliance with DOE Orders and MMES practices, the overall operation is evaluated, and recommendations for enhanced safety are suggested.

  15. Heat Hyperbolic Diffusion in Planck Gas

    E-Print Network [OSTI]

    Miroslaw Kozlowski; Janina Marciak-Kozlowska

    2006-07-06T23:59:59.000Z

    In this paper we investigate the diffusion of the thermal pulse in Planck Gas. We show that the Fourier diffusion equation gives the speed of diffusion, v > c and breaks the causality of the thermal processes in Planck gas .For hyperbolic heat transport v

  16. Sandia National Laboratories: Online Abstracts and Reports

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

    of Page Abstract (16.KB PDF) Report (2.0MB PDF) "Simulation and Testing of Resin Infusion Manufacturing Processes for Large Composite Structures" D.B. Mastbergen October 2007...

  17. 06241 Abstracts Collection Human Motion -Understanding, Modeling,

    E-Print Network [OSTI]

    06241 Abstracts Collection Human Motion - Understanding, Modeling, Capture and Animation. 13th Summary Human Motion - Understanding, Modeling, Capture and Animation. 13th Workshop Reinhard Klette 06241 Human Motion - Understanding, Modeling, Capture and Animation. 13th Workshop "Theoretical

  18. Pulmonary toxicology of respirable particles. [Lead abstract

    SciTech Connect (OSTI)

    Sanders, C.L.; Cross, F.T.; Dagle, G.E.; Mahaffey, J.A. (eds.)

    1980-09-01T23:59:59.000Z

    Separate abstracts were prepared for the 44 papers presented in these proceedings. The last paper (Stannard) in the proceedings is an historical review of the field of inhalation toxicology and is not included in the analytics. (DS)

  19. Kansas Statistical Abstract 2005 (40th Edition)

    E-Print Network [OSTI]

    Policy Research Institute

    2008-10-21T23:59:59.000Z

    The Kansas Statistical Abstract contains state, county, and city-level data for Kansas on population, vital statistics and health, housing, elections, education, business and manufacturing, exports, employment, income, finance, state and local...

  20. Kansas Statistical Abstract 2013 (48th Edition)

    E-Print Network [OSTI]

    Institute for Policy & Social Research

    2014-09-01T23:59:59.000Z

    The Kansas Statistical Abstract 2013, contains the latest available state, county, and city-level data for Kansas on population, vital statistics and health, housing, education, business and manufacturing, exports, employment, ...

  1. Kansas Statistical Abstract 2001 (36th Edition)

    E-Print Network [OSTI]

    2002-12-01T23:59:59.000Z

    The Kansas Statistical Abstract contains state, county, and city-level data for Kansas on population, vital statistics and health, housing, elections, education, business and manufacturing, exports, employment, income, ...

  2. Kansas Statistical Abstract 2008 (43rd Edition)

    E-Print Network [OSTI]

    Policy Research Institute

    2009-09-21T23:59:59.000Z

    The Kansas Statistical Abstract contains state, county, and city-level data for Kansas on agriculture, banking and finance, business and exports, climate, communications and information, crime, education, employment and ...

  3. Kansas Statistical Abstract 2004 (39th Edition)

    E-Print Network [OSTI]

    Policy Research Institute

    2006-01-31T23:59:59.000Z

    The Kansas Statistical Abstract contains state, county, and city-level data for Kansas on population, vital statistics and health, housing, elections, education, business and manufacturing, exports, employment, income, ...

  4. Kansas Statistical Abstract 2003 (38th Edition)

    E-Print Network [OSTI]

    Policy Research Institute

    2004-09-01T23:59:59.000Z

    The Kansas Statistical Abstract contains state, county, and city-level data for Kansas on population, vital statistics and health, housing, elections, education, business and manufacturing, exports, employment, income, ...

  5. Kansas Statistical Abstract 2012 (47th Edition)

    E-Print Network [OSTI]

    Institute for Policy & Social Research

    2014-05-27T23:59:59.000Z

    The Kansas Statistical Abstract 2012, contains the latest available state, county, and city-level data for Kansas on population, vital statistics and health, housing, education, business and manufacturing, exports, employment, ...

  6. Kansas Statistical Abstract 2002 (37th Edition)

    E-Print Network [OSTI]

    2003-09-01T23:59:59.000Z

    The Kansas Statistical Abstract contains state, county, and city-level data for Kansas on population, vital statistics and health, housing, elections, education, business and manufacturing, exports, employment, income, ...

  7. Kansas Statistical Abstract 2009 (44th Edition)

    E-Print Network [OSTI]

    Policy Research Institute

    2011-03-02T23:59:59.000Z

    The Kansas Statistical Abstract contains state, county, and city-level data for Kansas on agriculture, banking and finance, business and exports, climate, communications and information, crime, education, employment and ...

  8. Abstract Interpretation from a Topological Perspective

    E-Print Network [OSTI]

    Schmidt, David A.

    , then c C such that c U also. (A Scott-open U is like an interval, (c, +], on the real line.) x f f(x) f to abstract interpretation: Cousots' -topology for a.i. [Cousot2 78] defines a Scott-like topology #12;For Galois connection, P() , A, for f : P() P(), an abstract function, f : A A, is sound iff f

  9. Earth Sciences Division collected abstracts: 1980

    SciTech Connect (OSTI)

    Henry, A.L.; Hornady, B.F. (eds.)

    1981-10-15T23:59:59.000Z

    This report is a compilation of abstracts of papers, reports, and talks presented during 1980 at national and international meetings by members of the Earth Sciences Division, Lawrence Livermore National Laboratory. The arrangement is alphabetical (by author). For a given report, a bibliographic reference appears under the name of each coauthor, but the abstract itself is given only under the name of the first author (indicated in capital letters) or the first Earth Sciences Division author.

  10. Service Promotion -Diffusion Raphale LOMBARD

    E-Print Network [OSTI]

    Pellier, Damien

    Service Promotion - Diffusion Raphaële LOMBARD Editions L'Harmattan - 5 Rue de l'Ecole Polytechnique ­ 75005 Paris Tél 01.40.46.79.23 ­ mail : raphaele.lombard@harmattan.fr La mondialisation avance à complémentaires BON DE COMMANDE A retourner à L'HARMATTAN, 7 rue de l'�cole Polytechnique 75005 Paris Veuillez me

  11. Configurational diffusion of coal macromolecules

    SciTech Connect (OSTI)

    Guin, J.A.; Curtis, C.W.; Tarrer, A.R.; Kim, S.; Hwang, D.; Chen, C.C.; Chiou, Z.

    1991-01-01T23:59:59.000Z

    The objective of our research was to obtain fundamental information regarding the functional dependence of the diffusion coefficient of coal molecules on the ratio of molecule to pore diameter. That is, the objective of our study was to examine the effect of molecule size and configuration on hindered diffusion of coal macromolecules through as porous medium. To best accomplish this task, we circumvented the complexities of an actual porous catalyst by using a well defined porous matrix with uniform capillaric pores, i.e., a track-etched membrane. In this way, useful information was obtained regarding the relationship of molecular size and configuration on the diffusion rate of coal derived macromolecules through a pore structure with known geometry. Similar studies were performed using a pellet formed of porous alumina, to provide a link between the idealized membranes and the actual complex pore structure of real catalyst extrudates. The fundamental information from our study will be useful toward the tailoring of catalysts to minimize diffusional influences and thereby increase coal conversion and selectivity for desirable products. (VC)

  12. SEARCHING MULTIMEDIA DATA USING MPEG-7 DESCRIPTIONS IN A BROADCAST TERMINAL

    E-Print Network [OSTI]

    Lalmas, Mounia

    1 SEARCHING MULTIMEDIA DATA USING MPEG-7 DESCRIPTIONS IN A BROADCAST TERMINAL Mounia Lalmas1.putz@ipsi.fraunhofer.de Abstract MPEG-7 is an emerging standard for representing information carried by multimedia data and applications. This paper reports on the development of methods for searching multimedia data using MPEG-7

  13. CHP R&D Project Descriptions

    Broader source: Energy.gov [DOE]

    The CHP R&D project portfolio includes advanced reciprocating engine systems (ARES), packaged CHP systems, high-value applications, fuel-flexible CHP, and demonstrations of these technologies. Project fact sheets and short project descriptions are provided below:

  14. Creation of Computer Animation from Story Descriptions

    E-Print Network [OSTI]

    Kahn, Kenneth Michael

    1979-08-01T23:59:59.000Z

    This report describes a computer system that creates simple computer animation in response to high-level, vague, and incomplete descriptions of films. It makes its films by collecting and evaluating suggestions from ...

  15. Dynamic Scene Description System ---ODYS Jacek Malec

    E-Print Network [OSTI]

    Malec, Jacek

    ODYS (Opis DYnamicznej Sceny robota), is able to analyse descriptions of consecutive frames for analysing and describing dynamic scene of a robot is presented. The system, called ODYS (Opis DYnamicznej

  16. Building English Explanations from Function Descriptions

    E-Print Network [OSTI]

    Roberts, Bruce

    An explanatory component is an important ingredient in any complex AI system. A simple generative scheme to build descriptive phrases from Lisp function calls can produce respectable explanations if explanation generators ...

  17. Multimedia Developer, TBD Job Description Questionnaire (JDQ)

    E-Print Network [OSTI]

    Barrash, Warren

    Multimedia Developer, TBD Job Description Questionnaire (JDQ) Professional Staff Instructions What Below to Certify Approval or Disapproval: Approval Disapproval ( ) ( ) TBD, Multimedia Developer Position Title: Multimedia Developer Employee Name: TBD Phone: Supervisor Name & Title: TBD, Production

  18. National Forest Inventory Description of attributes

    E-Print Network [OSTI]

    National Forest Inventory Description of attributes Woodland_S: Woodland source (a) NFI base map have been mapped in accordance with the NFI mapping rules. National Forest Inventory #12;(f) 2010 AP

  19. Bell Nursery USA, LLC Internship Position Description

    E-Print Network [OSTI]

    Bell Nursery USA, LLC Internship Position Description Internship Program Goal as a grower. Grower/Internship position : It is our goal at Bell to provide a rewarding and educational experience to the student/intern. The internship position

  20. Job Position Description Job Title: Office Assistant

    E-Print Network [OSTI]

    Moore, Paul A.

    Job Position Description Job Title: Office Assistant A. Main purpose of the job: To assist of Campus Operations. B. Primary responsibilities or key duties of the job (tasks performed regularly

  1. Job Position Description Job Title: Locksmith Assistant

    E-Print Network [OSTI]

    Moore, Paul A.

    Job Position Description Job Title: Locksmith Assistant A. Main purpose of the job: Assist responsibilities or key duties of the job (tasks performed regularly): 1. Perform lock changes in all facilities

  2. Job Position Description Job Title: Custodial Worker

    E-Print Network [OSTI]

    Moore, Paul A.

    Job Position Description Job Title: Custodial Worker A. Main purpose of the job: Clean academic buildings and/or residence halls. B. Primary responsibilities or key duties of the job (tasks

  3. JOB DESCRIPTION Requisition ID 4206BR

    E-Print Network [OSTI]

    general office and administrative policies. · May supervise lower level staff members. · Schedules in accordance with established procedures. · Performs research and/or statistical analyses and assistsJOB DESCRIPTION Requisition ID 4206BR ASU Job Title Administrative Secretary Job Title

  4. Photoinduced Hydrogen Abstraction from Phenols by Aromatic Ketones. A New Mechanism for Hydrogen Abstraction by

    E-Print Network [OSTI]

    Leigh, William J.

    Photoinduced Hydrogen Abstraction from Phenols by Aromatic Ketones. A New Mechanism for Hydrogen carried out of the kinetics of inter- and intramolecular phenolic hydrogen abstraction phenolic hydrogen, which yields the corresponding phenoxyl-hemipinacol biradical. The biradicals have also

  5. Smithsonian/NASA ADS Physics/Geophysics Abstract Service Find Similar Abstracts (with default settings below)

    E-Print Network [OSTI]

    Mojahedi, Mohammad

    Smithsonian/NASA ADS Physics/Geophysics Abstract Service · Find Similar Abstracts (with default | Query Form | Preferences | HELP | FAQ Physics/Geophysics arXiv e-prints Send Query Reset #12;

  6. Are Aftershocks of Large Californian Earthquakes Diffusing?

    E-Print Network [OSTI]

    Helmstetter, A; Sornette, D; Helmstetter, Agnes; Ouillon, Guy; Sornette, Didier

    2003-01-01T23:59:59.000Z

    We analyze 21 aftershock sequences of California to test for evidence of space-time diffusion. Aftershock diffusion may result from stress diffusion and is also predicted by any mechanism of stress weakening. Here, we test an alternative mechanism to explain aftershock diffusion, based on multiple cascades of triggering. In order to characterize aftershock diffusion, we develop two methods, one based on a suitable time and space windowing that has been calibrated on the ETAS model of triggered seismicity, the other using a wavelet transform adapted to the removal of background seismicity. Both methods confirm that diffusion of seismic activity is very weak, much weaker than reported in previous studies. A possible mechanism explaining the weakness of observed diffusion is the effect of geometry, including the localization of aftershocks on a fractal fault network and the impact of extended rupture lengths which control the typical distances of interaction between earthquakes.

  7. Don de MR H. BREUIL DESCRIPTION

    E-Print Network [OSTI]

    Boyer, Edmond

    Don de MR H. BREUIL DESCRIPTION D UN SQUELETTE HUMAIN PHEHISTOHIOUE U ['COU Y BUT A ANTHY, près de O R R A Z ET Cio ITUT 3GIE 1U05 · . · r.6o. #12;DESCRIPTION · r SQUELETTE HUMAIN PR�HISTORIQUE à l'époque litcuslre. Voilà 1rs quelques renseignements qu'on m'a communiqués à ce sujet : En

  8. Group classification of systems of non-linear reaction-diffusion equations with general diffusion matrix. II. Generalized Turing systems

    E-Print Network [OSTI]

    A. G. Nikitin

    2007-07-20T23:59:59.000Z

    Group classification of systems of two coupled nonlinear reaction-diffusion equation with a diagonal diffusion matrix is carried out. Symmetries of diffusion systems with singular diffusion matrix and additional first order derivative terms are described.

  9. The shape dynamics description of gravity

    E-Print Network [OSTI]

    Tim Koslowski

    2015-01-13T23:59:59.000Z

    Classical gravity can be described as a relational dynamical system without ever appealing to spacetime or its geometry. This description is the so-called shape dynamics description of gravity. The existence of relational first principles from which the shape dynamics description of gravity can be derived is a motivation to consider shape dynamics (rather than GR) as the fundamental description of gravity. Adopting this point of view leads to the question: What is the role of spacetime in the shape dynamics description of gravity? This question contains many aspects: Compatibility of shape dynamics with the description of gravity in terms of spacetime geometry, the role of local Minkowski space, universality of spacetime geometry and the nature of quantum particles, which can no longer be assumed to be irreducible representations of the Poincare group. In this contribution I derive effective spacetime structures by considering how matter fluctuations evolve along with shape dynamics. This evolution reveals an "experienced spacetime geometry." This leads (in an idealized approximation) to local Minkowski space and causal relations. The small scale structure of the emergent geometric picture depends on the specific probes used to experience spacetime, which limits the applicability of effective spacetime to describe shape dynamics. I conclude with discussing the nature of quantum fluctuations (particles) in shape dynamics and how local Minkowski spacetime emerges from the evolution of quantum particles.

  10. Abstract A Hierarchical Algorithm for Radiosity Daylighting

    E-Print Network [OSTI]

    Gonzalo Besuievsky; Ignacio Martin

    A new daylight simulation method for radiosity environments is presented. Daylight illumination is transported in a first step where sun and sky are represented as a set of directional sources. Light is transported using parallel projections of these sources. The scene mesh is adaptively subdivided using energy and visibility criteria obtained from a extended scan-line algorithm that computes a layered depth image for each projection. In a second step, diffuse intereflection is computed through a hierarchical Monte Carlo radiosity algorithm. The method is feasible for it extension for environments containing specular surfaces. Relative short time view-independent global illumination results can be obtained with the proposed method, which make it suitable for daylight building design and analysis applications for both indoors and outdoors environments. 1

  11. Earth Sciences Division collected abstracts: 1979

    SciTech Connect (OSTI)

    Henry, A.L.; Schwartz, L.L.

    1980-04-30T23:59:59.000Z

    This report is a compilation of abstracts of papers, internal reports, and talks presented during 1979 at national and international meetings by members of the Earth Sciences Division, Lawrence Livermore Laboratory. The arrangement is alphabetical (by author). For a given report, a bibliographic reference appears under the name of each coauthor, but the abstract iself is given only under the name of the first author or the first Earth Sciences Division author. A topical index at the end of the report provides useful cross references, while indicating major areas of research interest in the Earth Sciences Division.

  12. Diffuse Synchrotron Emission from Galactic Cosmic Ray Electrons

    E-Print Network [OSTI]

    Di Bernardo, Giuseppe; Evoli, Carmelo; Gaggero, Daniele

    2015-01-01T23:59:59.000Z

    Synchrotron diffuse radiation (SDR) emission is one of the major Galactic components, in the 100 MHz up to 100 GHz frequency range. Its spectrum and sky map provide valuable measure of the galactic cosmic ray electrons (GCRE) in the relevant energy range, as well as of the strength and structure of the Galactic magnetic fields (GMF), both regular and random ones. This emission is an astrophysical sky foreground for the study of the Cosmic Microwave Background (CMB), and the extragalactic microwave measurements, and it needs to be modelled as better as possible. In this regard, in order to get an accurate description of the SDR in the Galaxy, we use - for the first time in this context - 3-dimensional GCRE models obtained by running the DRAGON code. This allows us to account for a realistic spiral arm pattern of the source distribution, demanded to get a self-consistent treatment of all relevant energy losses influencing the final synchrotron spectrum.

  13. Probing Emissions of Military Cargo Aircraft: Description of...

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

    Emissions of Military Cargo Aircraft: Description of a Joint Field Measurement Strategic Environmental Research and Probing Emissions of Military Cargo Aircraft: Description of a...

  14. Descriptions of Task Order Schedules and Placement of Pricing...

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

    10112007 ATTACHMENT J-5 DESCRIPTIONS OF TASK ORDER SCHEDULES AND PLACEMENT OF PRICING INFORMATION J-5.1 DESCRIPTIONS OF TASK ORDER (TO) SCHEDULES (SCHEDULE TEMPLATES...

  15. PART I: JOB DESCRIPTION Weighted Job Questionnaire (WJQ) Custom

    E-Print Network [OSTI]

    PART I: JOB DESCRIPTION Weighted Job Questionnaire (WJQ) Custom Department Name: Position Number WEIGHTED JOB QUESTIONNAIRE (WJQ) CUSTOM PARTI: JOB DESCRIPTION 1. POSITION IDENTIFICATION Department

  16. Demo Abstract: TOSS: Thermal Occupancy Sensing System

    E-Print Network [OSTI]

    Cerpa, Alberto E.

    materials harnessing passive solar technologies along with increasingly efficient HVAC systems have,jlusby,acerpa}@andes.ucmerced.edu ABSTRACT We propose a system that can accurately determine the oc- cupancy of zones within a building to a building's energy management system in order to control the Heating, Ventilation, Air Condition- ing, (HVAC

  17. Transforming and Refining Abstract Constraint Specifications

    E-Print Network [OSTI]

    Walsh, Toby

    Transforming and Refining Abstract Constraint Specifications Alan M. Frisch1 , Brahim Hnich2 , Ian choose model transformations to reduce greatly the amount of effort that is required to solve a problem by systematic search. It is a consid- erable challenge to automate such transformations. A problem may be viewed

  18. Abstract polymer models with general pair interactions

    E-Print Network [OSTI]

    Aldo Procacci

    2008-11-26T23:59:59.000Z

    A convergence criterion of cluster expansion is presented in the case of an abstract polymer system with general pair interactions (i.e. not necessarily hard core or repulsive). As a concrete example, the low temperature disordered phase of the BEG model with infinite range interactions, decaying polynomially as $1/r^{d+\\lambda}$ with $\\lambda>0$, is studied.

  19. Natural radiation environment III. [Lead Abstract

    SciTech Connect (OSTI)

    Gesell, T.F.; Lowder, W.M. (eds.)

    1980-01-01T23:59:59.000Z

    Separate abstracts were prepared for the 52 research papers presented at this symposium in April 1978. The major topics in this volume deal with penetrating radiation measurements, radiation surveys and population exposure, radioactivity in the indoor environment, and technologically enhanced natural radioactivity. (KRM)

  20. Jitter Regulation for Multiple Streams (Extended Abstract)

    E-Print Network [OSTI]

    Hay, David

    Jitter Regulation for Multiple Streams (Extended Abstract) David Hay and Gabriel Scalosub Computer as possible; the smoothness of a traffic is typically captured by its delay jitter, i.e., the difference between the maximal and minimal end-to-end delays. The task of minimizing the jitter is done by jitter

  1. Managed Data: Modular Strategies for Data Abstraction

    E-Print Network [OSTI]

    Cook, William R.

    these mechanisms to define specific kinds of data. Managed Data allows program- mers to take control of many management mechanism, not properties of individ- ual data types. It is possible to define such featuresManaged Data: Modular Strategies for Data Abstraction Alex Loh University of Texas at Austin

  2. Microscopic diffusion of partly ionized metals in the Sun and metal-poor stars

    E-Print Network [OSTI]

    Schlattl, H

    2002-01-01T23:59:59.000Z

    An improved microscopic diffusion in stars is presented considering in detail the partly ionized stages of metals. Besides,the influence of degenerate electron-gas and of the contribution of radiation to the total pressure has been accounted for. The solution of the diffusion equations is then performed following the scheme of Thoul et al. (1994). By defining one mean charged ion per element very few modifications are necessary to solve the improved diffusion scheme. (A portable FORTRAN routine is provided.) The change in the sound-speed profile of a solar model obtained with the new diffusion description is at most about 25% at r=0.6 R(sun). The biggest effect on low-mass stars is expected near the turn-off, where the convective envelope is shallowest. However, only a difference of at most 40 K in the effective temperature could be observed when assuming either fully or partly ionized metals in the diffusion equation. Nevertheless, the surface metal distribution is strongly altered.

  3. Characterizing unsaturated diffusion in porous tuff gravel

    SciTech Connect (OSTI)

    Hu, Qinhong; Kneafsey, Timothy J.; Roberts, Jeffery J.; Tomutsa, Liviu; Wang, Joseph, S.Y.

    2003-11-12T23:59:59.000Z

    Evaluation of solute diffusion in unsaturated porous gravel is very important for investigations of contaminant transport and remediation, risk assessment, and waste disposal (for example, the potential high-level nuclear waste repository at Yucca Mountain, Nevada). For a porous aggregate medium such as granular tuff, the total water content is comprised of surface water and interior water. The surface water component (water film around grains and pendular water between the grain contacts) could serve as a predominant diffusion pathway. To investigate the extent to which surface water films and contact points affect solute diffusion in unsaturated gravel, we examined the configuration of water using x-ray computed tomography in partially saturated gravel, and made quantitative measurements of diffusion at multiple water contents using two different techniques. In the first, diffusion coefficients of potassium chloride in 2-4 mm granular tuff at multiple water contents were calculated from electrical conductivity measurements using the Nernst-Einstein equation. In the second, we used laser ablation with inductively coupled plasma-mass spectrometry to perform micro-scale mapping, allowing the measurement of diffusion coefficients for a mixture of chemical tracers for tuff cubes and tetrahedrons having two contact geometries (cube-cube and cube-tetrahedron). The x-ray computed tomography images show limited contact between grains, and this could hinder the pathways for diffusive transport. Experimental results show the critical role of surface water in controlling transport pathways and hence the magnitude of diffusion. Even with a bulk volumetric water content of 1.5%, the measured solute diffusion coefficient is as low as 1.5 x 10{sup -14} m{sup 2}/s for tuff gravel. Currently used diffusion models relating diffusion coefficients to total volumetric water content inadequately describe unsaturated diffusion behavior in porous gravel at very low water contents.

  4. Diffusion processes in general relativistic radiating spheres

    SciTech Connect (OSTI)

    Barreto, W.; Herrera, L.; Santos, N.O. (Oriente Universidad, Cumana (Venezuela); Universidad Central de Venezuela, Caracas; Observatorio Nacional do Brasil, Rio de Janeiro (Brazil))

    1989-09-01T23:59:59.000Z

    The influence of diffusion processes on the dynamics of general relativistic radiating spheres is systematically studied by means of two examples. Differences between the streaming-out limit and the diffusion limit are exhibited, for both models, through the evolution curves of dynamical variables. In particular it is shown the Bondi mass decreases, for both models, in the diffusion limit as compared with its value at the streaming-out regime. 15 refs.

  5. Nonlinear diffusion in Acetone-Benzene Solution

    E-Print Network [OSTI]

    Obukhovsky, Vjacheslav V

    2010-01-01T23:59:59.000Z

    The nonlinear diffusion in multicomponent liquids under chemical reactions influence has been studied. The theory is applied to the analysis of mass transfer in a solution of acetone-benzene. It has been shown, that the creation of molecular complexes should be taken into account for the explanation of the experimental data on concentration dependence of diffusion coefficients. The matrix of mutual diffusivities has been found and effective parameters of the system have been computed.

  6. FFCAct Clearinghouse, Directory of abstracts. Revision 1

    SciTech Connect (OSTI)

    Harwood, T.

    1994-05-01T23:59:59.000Z

    The Federal Facility Compliance Act (FFCAct) Clearinghouse is a card catalog of information about the FFCAct and its requirements for developing Site Treatment Plans (STP). The information available in the clearinghouse includes abstracts describing computer applications, technical reports, and a list of technical experts. Information can be accessed for use in responding to FFCAct requirements, and the clearinghouse provides search capabilities on particular topics and issues related to STP development. Appendix A includes: contacts from each site, for which contact has been made, who are developing STPs; the FFCAct Clearinghouse Fact Sheet and; additional hard copy forms to be used to populate the database. This report contains 50 abstracts related to the Radioactive Waste Technical Support Program.

  7. Automatic identification of abstract online groups

    DOE Patents [OSTI]

    Engel, David W; Gregory, Michelle L; Bell, Eric B; Cowell, Andrew J; Piatt, Andrew W

    2014-04-15T23:59:59.000Z

    Online abstract groups, in which members aren't explicitly connected, can be automatically identified by computer-implemented methods. The methods involve harvesting records from social media and extracting content-based and structure-based features from each record. Each record includes a social-media posting and is associated with one or more entities. Each feature is stored on a data storage device and includes a computer-readable representation of an attribute of one or more records. The methods further involve grouping records into record groups according to the features of each record. Further still the methods involve calculating an n-dimensional surface representing each record group and defining an outlier as a record having feature-based distances measured from every n-dimensional surface that exceed a threshold value. Each of the n-dimensional surfaces is described by a footprint that characterizes the respective record group as an online abstract group.

  8. A Rearrangement Inequality for Diffusion Processes /

    E-Print Network [OSTI]

    Gao, Teng

    2013-01-01T23:59:59.000Z

    of the Rearrangement Inequality and its Proba- bilisticRearrangement Inequality . . . . . . 4.5 Some ObservationsSAN DIEGO A Rearrangement Inequality for Diffusion Processes

  9. Independent Oversight Review, Portsmouth Gaseous Diffusion Plant...

    Office of Environmental Management (EM)

    Plant - November 2013 Independent Oversight Review, Portsmouth Gaseous Diffusion Plant - November 2013 November 5, 2013 Review of Preparedness for Severe Natural Phenomena Events...

  10. Independent Oversight Review, Portsmouth Gaseous Diffusion Plant...

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

    April 2013 Independent Oversight Review, Portsmouth Gaseous Diffusion Plant - April 2013 April 2013 Review of the Integrated Safety Management System Phase I Verification Review at...

  11. Topological BF field theory description of topological insulators

    SciTech Connect (OSTI)

    Cho, Gil Young [Department of Physics, University of California, Berkeley, CA 94720 (United States); Moore, Joel E., E-mail: jemoore@berkeley.edu [Department of Physics, University of California, Berkeley, CA 94720 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

    2011-06-15T23:59:59.000Z

    Research Highlights: > We show that a BF theory is the effective theory of 2D and 3D topological insulators. > The non-gauge-invariance of the bulk theory yields surface terms for a bosonized Dirac fermion. > The 'axion' term in electromagnetism is correctly obtained from gapped surfaces. > Generalizations to possible fractional phases are discussed in closing. - Abstract: Topological phases of matter are described universally by topological field theories in the same way that symmetry-breaking phases of matter are described by Landau-Ginzburg field theories. We propose that topological insulators in two and three dimensions are described by a version of abelian BF theory. For the two-dimensional topological insulator or quantum spin Hall state, this description is essentially equivalent to a pair of Chern-Simons theories, consistent with the realization of this phase as paired integer quantum Hall effect states. The BF description can be motivated from the local excitations produced when a {pi} flux is threaded through this state. For the three-dimensional topological insulator, the BF description is less obvious but quite versatile: it contains a gapless surface Dirac fermion when time-reversal-symmetry is preserved and yields 'axion electrodynamics', i.e., an electromagnetic E . B term, when time-reversal symmetry is broken and the surfaces are gapped. Just as changing the coefficients and charges of 2D Chern-Simons theory allows one to obtain fractional quantum Hall states starting from integer states, BF theory could also describe (at a macroscopic level) fractional 3D topological insulators with fractional statistics of point-like and line-like objects.

  12. SATURATED ZONE FLOW AND TRANSPORT MODEL ABSTRACTION

    SciTech Connect (OSTI)

    B.W. ARNOLD

    2004-10-27T23:59:59.000Z

    The purpose of the saturated zone (SZ) flow and transport model abstraction task is to provide radionuclide-transport simulation results for use in the total system performance assessment (TSPA) for license application (LA) calculations. This task includes assessment of uncertainty in parameters that pertain to both groundwater flow and radionuclide transport in the models used for this purpose. This model report documents the following: (1) The SZ transport abstraction model, which consists of a set of radionuclide breakthrough curves at the accessible environment for use in the TSPA-LA simulations of radionuclide releases into the biosphere. These radionuclide breakthrough curves contain information on radionuclide-transport times through the SZ. (2) The SZ one-dimensional (I-D) transport model, which is incorporated in the TSPA-LA model to simulate the transport, decay, and ingrowth of radionuclide decay chains in the SZ. (3) The analysis of uncertainty in groundwater-flow and radionuclide-transport input parameters for the SZ transport abstraction model and the SZ 1-D transport model. (4) The analysis of the background concentration of alpha-emitting species in the groundwater of the SZ.

  13. Oxidation and diffusion of Cu in SrS: Cu grown by MBE for blue phosphors

    E-Print Network [OSTI]

    Wang, Zhong L.

    Oxidation and diffusion of Cu in SrS: Cu grown by MBE for blue phosphors Y.B. Xina,b,*, W. Tonga, ON M9W 5AS, Canada Abstract Systematic studies of MBE grown SrS:Cu thin film blue phosphors Thin film SrS:Cu is a potential candidate for blue electro- luminescent (EL) phosphors. Although recent

  14. Effect of Gas Diffusion on Mobility of Foam for Enhanced Oil Recovery Lars E. Nonnekes1

    E-Print Network [OSTI]

    Cox, Simon

    Effect of Gas Diffusion on Mobility of Foam for Enhanced Oil Recovery Lars E. Nonnekes1 Foam can improve the sweep efficiency of gas injected into oil reservoirs for enhanced oil recovery University William Richard Rossen Email: W.R.Rossen@tudelft.nl Abstract Transport of gas across

  15. A Censoring Strategy for Decentralized Estimation in Energy-Constrained Adaptive Diffusion Networks

    E-Print Network [OSTI]

    Leus, Geert

    A Censoring Strategy for Decentralized Estimation in Energy-Constrained Adaptive Diffusion Networks.j.t.leus}@tudelft.nl Abstract--This paper presents a censoring strategy for dis- tributed estimation over adaptive networks in scenarios where energy resources are limited. Sensors apply selective communi- cation policies in order

  16. RGLES DE SLECTION POUR LA DIFFUSION RAMAN ET L'ABSORPTION INFRAROUGE DANS LA WURTZITE (1)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    689. R�GLES DE S�LECTION POUR LA DIFFUSION RAMAN ET L'ABSORPTION INFRAROUGE DANS LA WURTZITE (1 du groupe de symétrie de la wurtzite aux points 0393, A, M, K de la zone de Brillouin ont été. Abstract. - The irreducible representations of the wurtzite space group corresponding to the 0393, A, M

  17. Numerical Analysis of a one dimensional Diffusion Equation for a single chamber Microbial Fuel Cell using

    E-Print Network [OSTI]

    dimensional Diffusion Equation to model oxygen in a single chamber MFC. A rigorous verification of the effects . . . . . . . . . . . . . . . . . . 12 5 Model Application 13 #12;Advanced Numerical Methods Zielke iii 5.1 System Configuration May 5, 2006 #12;Abstract Renewable energy (RE) applications are becoming a popular means of power

  18. A structural basis for developmental dyslexia: Evidence from diffusion tensor imaging Russell A. Poldrack

    E-Print Network [OSTI]

    Poldrack, Russ

    A structural basis for developmental dyslexia: Evidence from diffusion tensor imaging Russell A: 617-726-7422 Email: poldrack@nmr.mgh.harvard.edu #12;Poldrack ­ DTI and dyslexia 2 Abstract Studies of developmental dyslexia using functional imaging techniques have found disrupted activation of the left angular

  19. 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

  20. A continuous surface tension force formulation for diffuse-interface models

    E-Print Network [OSTI]

    Frey, Pascal

    A continuous surface tension force formulation for diffuse-interface models Junseok Kim October 2004 Available online 30 November 2004 Abstract We present a new surface tension force formulation field because pressure includes the gradient terms resulting from the modified surface tension term

  1. Standard-C hydrogen monitoring system, system design description

    SciTech Connect (OSTI)

    Schneider, T.C., Westinghouse Hanford

    1996-08-29T23:59:59.000Z

    Standard-C cabinet arrangement system design description for the Standard Hydrogen Monitoring System.

  2. Better Buildings Neighborhood Program Business Models Guide: Program Administrator Description

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program Business Models Guide: Program Administrator Business Models, Program Administrator Description.

  3. Lawson Job Description Acknowledgment Instructions Log In to Lawson

    E-Print Network [OSTI]

    Gleeson, Joseph G.

    Lawson Job Description Acknowledgment Instructions · Log In to Lawson o Lawson Web Address: - https. Updated 3/15/10 Page 1 of 6 #12;Lawson Job Description Acknowledgment Instructions Click "My Job Description" · Click "My Job Description" from the Employee Central section of your home page o "My Job

  4. Modelling international wind energy diffusion: Are the patterns of induced diffusion `S'

    E-Print Network [OSTI]

    Feigon, Brooke

    Modelling international wind energy diffusion: Are the patterns of induced diffusion `S' shaped datasets, the paper explores the patterns of international wind energy diffusion in OECD countries. The model employed in the paper predicted that wind energy, as a complex and expensive innovation, would

  5. Turbulent diffusion and turbulent thermal diffusion of aerosols in stratified atmospheric flows

    E-Print Network [OSTI]

    Elperin, Tov

    Turbulent diffusion and turbulent thermal diffusion of aerosols in stratified atmospheric flows M to the turbulent diffusion, and its potential impact on aerosol distribution. This phenomenon was predicted a nondiffusive flux of aerosols in the direction of the heat flux and results in formation of long-living aerosol

  6. STUDENT LABOR POSITION DESCRIPTION Forestry Department

    E-Print Network [OSTI]

    Baltisberger, Jay H.

    approved STUDENT LABOR POSITION DESCRIPTION Forestry Department Most Recently Updated 10/17/00 Position Title: Student Forestry Technician Must work 10 hrs/wk. or 15 hrs/wk (depending on grade). I. The following are the essential duties for a Forestry Technician in the Forestry Department: 1. Supervise other

  7. HOUSING RESOURCES Description of Boston Neighborhoods

    E-Print Network [OSTI]

    HOUSING RESOURCES Boston Description of Boston Neighborhoods http://www.bu.edu/offcampus/tips-resources/bostons-neighborhoods/ Summer Housing Boston http://www.urbaninterns.com/journal/jobseekers/summer-housing-for-boston-interns/ https://www.northeastern.edu/conferences/intern/index.html http://housing.mit.edu/summer_guest/non_mit_summer_internship_housing

  8. The Genetive and Ablative of Description

    E-Print Network [OSTI]

    Cressman, Edmund Dresser

    1911-06-01T23:59:59.000Z

    had not yet become a com­ mon descriptive case. The statistics for the nouns in Cicero are based on Merguet; those in Tacitus, on Gerber and Greef, Abl. Gen, Abl. Gen. Abl. Gen in in in in in in earlyearlyCfcc--Cic­ Tac­ Tac Latin ero ero itus...

  9. Business Development Associate -1493 Job Description

    E-Print Network [OSTI]

    Evans, Paul G.

    Business Development Associate - 1493 Job Description: BioTechnique is a contract manufacturing our Business Development efforts. This will offer a start-up environment, with hands-on opportunities with business development in our consulting, software and investments departments. These new graduates

  10. Business of Fashion Concentration & Minor -Newark Description

    E-Print Network [OSTI]

    Lin, Xiaodong

    Business of Fashion Concentration & Minor - Newark Description The Business of Fashion program was designed to bridge the gap between creativity and business acumen. It is for artistic individuals who want to solidify their understanding of business, as well as for business students who want to learn how to apply

  11. System design description cone penetrometer system

    SciTech Connect (OSTI)

    Seda, R.Y., Westinghouse Hanford

    1996-08-12T23:59:59.000Z

    The system design description documents in detail the design of the cone penetrometer system. The systems includes the cone penetrometer physical package, raman spectroscopy package and moisture sensor package. Information pertinent to the system design, development, fabrication and testing is provided.

  12. FACULTY OF ENGINEERING MODULE DESCRIPTION FORM

    E-Print Network [OSTI]

    Mottram, Nigel

    Office Jan 2003) #12;Level of Achievement Statement for a JBM Accredited Engineering Module Module CodeFACULTY OF ENGINEERING MODULE DESCRIPTION FORM CODE CL508/906 Site Investigation & Risk Assessment Module Registrar: Dr P Sentenac Taught To (Course): Civil Engineering Other Lecturers Involved: Credit

  13. FACULTY OF ENGINEERING MODULE DESCRIPTION FORM

    E-Print Network [OSTI]

    Mottram, Nigel

    Level: NQF 3 Prerequisites: none Module Format and Delivery (hours): Lecture Tutorial Assignments Visits visualisation). Uncovering the role of science and mathematics in the design of structures using case studyFACULTY OF ENGINEERING MODULE DESCRIPTION FORM CL 112 Introduction to Civil Engineering Module Code

  14. DESCRIPTION OF ACCIDENT MSU DRIVERS SIGNATURE

    E-Print Network [OSTI]

    Dyer, Bill

    of Commercial Policy Number) Motor vehicles that are owned, rented, leased, or loaned to Montana State's Name: MSU VEHICLE (VEHICLE #1) Issued Citation: YES NO Explain: Department: Phone: 994 - Vehicle Owner: Use of Vehicle: Vehicle: Make Model Year VIN: Plate Number: State: Description of Damage: Safety

  15. EGGN 100 -INTRODUCTION TO ENGINEERING COURSE DESCRIPTION

    E-Print Network [OSTI]

    de Lijser, Peter

    Engineering design project - Continued Week 13 Field Trip to an Engineering site Project reviews, demosEGGN 100 - INTRODUCTION TO ENGINEERING COURSE DESCRIPTION Introduction to engineering disciplines and their sub-fields, basic tools used in engineering practice, hands-on engineering projects. COURSE OBJECTIVE

  16. Sustainable Energy Scheme Mentor Job description

    E-Print Network [OSTI]

    Anderson, Jim

    1 Sustainable Energy Scheme Mentor Job description Department: Student Administration and Registry and agreement between the Sustainable Energy Scheme Mentor and the UK Student Recruitment and Outreach Team Sustainable Energy Scheme · To participate in both on and off campus mentoring activities throughout

  17. Interns for Indiana (IFI) Project descriptions

    E-Print Network [OSTI]

    with the company after graduation, which allows him to work on cutting edge projects, aid in company growthInterns for Indiana (IFI) Projects Project descriptions: · Software development, database design analysis Past student project Development of animated graphics for web portal and product demos -Kevin

  18. Deriving Security Requirements from Crosscutting Threat Descriptions

    E-Print Network [OSTI]

    Haley, Charles B.

    Deriving Security Requirements from Crosscutting Threat Descriptions Charles B. Haley, Robin C representing threats as crosscutting concerns aids in determining the effect of security requirements on the functional requirements. Assets (objects that have value in a system) are first enumerated, and then threats

  19. Towards A Mathematical Services Description Olga Caprotti

    E-Print Network [OSTI]

    Towards A Mathematical Services Description Language Olga Caprotti Wolfgang Schreiner Research Introduction In the recent years, mathematical software systems, i.e., computer algebra systems like Maple. There are numerous examples in the literature of scien- ti#12;c software needing access to computer algebra methods

  20. RESIDENT ACADEMIC MENTOR DRAFT JOB DESCRIPTION

    E-Print Network [OSTI]

    Caughman, John

    1 RESIDENT ACADEMIC MENTOR DRAFT JOB DESCRIPTION 2015-2016 ACADEMIC YEAR The Resident Academic Mentor (RAM) is a member of the Residence Life team. The RAM is responsible for fostering a supportive, information and resources to residents. Resident Academic Mentors will provide valuable experiences

  1. Educational Leadership Description of the Program

    E-Print Network [OSTI]

    Ravikumar, B.

    Educational Leadership Description of the Program The Administrative Services Credential programs of leadership in P-12 education institutions. All students are admitted starting in the fall of each academic to the Educational Leadership program area of concentration for the M.A. degree in Education. This course of study

  2. The Scottish Forestry Strategy Description of indicators

    E-Print Network [OSTI]

    The Scottish Forestry Strategy Description of indicators Updated December 2011 1 #12;T h e S c o of wood energy plant (in megawatt thermal and electrical) Number of non-domestic, wood fuelled energy sector Forecast wood availability from the national forest estate Timber's contribution to Scottish Value

  3. RECENTER -ADVERSITY INTO TRANSFORMATION Course Description

    E-Print Network [OSTI]

    Coles, William A.

    Center" delivers power tools and real time strategies for creating performance transformation ­ no matter what and practical system for transforming your communication skills from the inside and outside. · Use real timeRECENTER - ADVERSITY INTO TRANSFORMATION Course Description: Knowing how to use adversity

  4. Network architecture functional description and design

    SciTech Connect (OSTI)

    Stans, L.; Bencoe, M.; Brown, D.; Kelly, S.; Pierson, L.; Schaldach, C.

    1989-05-25T23:59:59.000Z

    This report provides a top level functional description and design for the development and implementation of the central network to support the next generation of SNL, Albuquerque supercomputer in a UNIX{reg sign} environment. It describes the network functions and provides an architecture and topology.

  5. WARREN RESIDENTIAL LIFE RESIDENT ASSISTANT POSITION DESCRIPTION

    E-Print Network [OSTI]

    Russell, Lynn

    WARREN RESIDENTIAL LIFE RESIDENT ASSISTANT POSITION DESCRIPTION The position of Resident Assistant for students living within the Warren College residential community. Resident Assistant's (RA's) are principle members of the Warren Residential Life staff. In accordance with the University of California's Personnel

  6. Surveying Diffusion in Complex Geometries. An Essay

    E-Print Network [OSTI]

    Denis Grebenkov

    2009-09-08T23:59:59.000Z

    The surrounding world surprises us by the beauty and variety of complex shapes that emerge from nanometric to macroscopic scales. Natural or manufactured materials (sandstones, sedimentary rocks and cement), colloidal solutions (proteins and DNA), biological cells, tissues and organs (lungs, kidneys and placenta), they all present irregularly shaped "scenes" for a fundamental transport "performance", that is, diffusion. Here, the geometrical complexity, entangled with the stochastic character of diffusive motion, results in numerous fascinating and sometimes unexpected effects like diffusion screening or localization. These effects control many diffusion-mediated processes that play an important role in heterogeneous catalysis, biochemical mechanisms, electrochemistry, growth phenomena, oil recovery, or building industry. In spite of a long and rich history of academic and industrial research in this field, it is striking to see how little we know about diffusion in complex geometries, especially the one which occurs in three dimensions. We present our recent results on restricted diffusion. We look into the role of geometrical complexity at different levels, from boundary microroughness to hierarchical structure and connectivity of the whole diffusion-confining domain. We develop a new approach which consists in combining fast random walk algorithms with spectral tools. The main focus is on studying diffusion in model complex geometries (von Koch boundaries, Kitaoka acinus, etc.), as well as on developing and testing spectral methods. We aim at extending this knowledge and at applying the accomplished arsenal of theoretical and numerical tools to structures found in nature and industry.

  7. DIFFUSE RADIO EMISSION IN ABELL 754

    SciTech Connect (OSTI)

    Kale, Ruta; Dwarakanath, K. S. [Raman Research Institute, Bangalore 560080 (India)], E-mail: ruta@rri.res.in, E-mail: dwaraka@rri.res.in

    2009-07-10T23:59:59.000Z

    We present a low-frequency study of the diffuse radio emission in the galaxy cluster A754. We present a new 150 MHz image of the galaxy cluster A754 made with the Giant Metrewave Radio Telescope and discuss the detection of four diffuse features. We compare the 150 MHz image with the images at 74, 330, and 1363 MHz; one new diffuse feature is detected. The flux density upper limits at 330 and 1363 MHz imply a synchrotron spectral index, {alpha}>2 (S {proportional_to} {nu}{sup -{alpha}}), for the new feature. The 'west relic' detected at 74 MHz is not detected at 150 MHz and is thus consistent with its nondetection at 1363 MHz and 330 MHz. Integrated spectra of all the diffuse features are presented. The fourth diffuse feature is located along the proposed merger axis in A754 and 0.7 Mpc away from the peak of X-ray emission; we refer to it as a relic. We have made use of the framework of the adiabatic compression model to obtain spectra. We show that the spectrum of the fourth diffuse feature is consistent with that of a cocoon of a radio galaxy lurking for about 9 x 10{sup 7} yr; no shock compression is required. The other three diffuse emission have spectra steeper than 1.5 and could be cocoons lurking for longer time. We discuss other possibilities such as shocks and turbulent reacceleration being responsible for the diffuse emission in A754.

  8. Finite-difference schemes for anisotropic diffusion

    SciTech Connect (OSTI)

    Es, Bram van, E-mail: es@cwi.nl [Centrum Wiskunde and Informatica, P.O. Box 94079, 1090GB Amsterdam (Netherlands); FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, Association EURATOM-FOM (Netherlands); Koren, Barry [Eindhoven University of Technology (Netherlands); Blank, Hugo J. de [FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, Association EURATOM-FOM (Netherlands)

    2014-09-01T23:59:59.000Z

    In fusion plasmas diffusion tensors are extremely anisotropic due to the high temperature and large magnetic field strength. This causes diffusion, heat conduction, and viscous momentum loss, to effectively be aligned with the magnetic field lines. This alignment leads to different values for the respective diffusive coefficients in the magnetic field direction and in the perpendicular direction, to the extent that heat diffusion coefficients can be up to 10{sup 12} times larger in the parallel direction than in the perpendicular direction. This anisotropy puts stringent requirements on the numerical methods used to approximate the MHD-equations since any misalignment of the grid may cause the perpendicular diffusion to be polluted by the numerical error in approximating the parallel diffusion. Currently the common approach is to apply magnetic field-aligned coordinates, an approach that automatically takes care of the directionality of the diffusive coefficients. This approach runs into problems at x-points and at points where there is magnetic re-connection, since this causes local non-alignment. It is therefore useful to consider numerical schemes that are tolerant to the misalignment of the grid with the magnetic field lines, both to improve existing methods and to help open the possibility of applying regular non-aligned grids. To investigate this, in this paper several discretization schemes are developed and applied to the anisotropic heat diffusion equation on a non-aligned grid.

  9. CONVERTIBLE BONDS IN A DEFAULTABLE DIFFUSION MODEL

    E-Print Network [OSTI]

    Jeanblanc, Monique

    CONVERTIBLE BONDS IN A DEFAULTABLE DIFFUSION MODEL Tomasz R. Bielecki Department of Applied Research Grant PS12918. #12;2 Convertible Bonds in a Defaultable Diffusion Model 1 Introduction In [4), such as Convertible Bonds (CB), and we provided a rigorous decomposition of a CB into a bond component and a (game

  10. ON DIFFUSION IN HETEROGENEOUS MEDIA YOUXUE ZHANG*,

    E-Print Network [OSTI]

    Liu, Liping

    , heterogeneous media, multi-mineral rocks, multi-phase media, composite materials, kinetics, porous rocks to bulk diffusion, and porous materials (such as plants, soil, rock with partial melt or fluid, sediment of air and moisture in soils, drying of paint, wood, and concrete, diffusion of gases in rubber, movement

  11. Subsurface Biogeochemical Research (SBR) Contractor-Grantee Workshop--Abstracts

    E-Print Network [OSTI]

    Hazen, Terry C.

    2010-01-01T23:59:59.000Z

    sediments undergoing U(VI) bioremediation. Abstracts Designinto subsurface bioremediation. Abstracts BUGS Modeling:attenuation or engineered bioremediation conditions, to

  12. Current Abstracts Nuclear Reactors and Technology

    SciTech Connect (OSTI)

    Bales, J.D.; Hicks, S.C. [eds.

    1993-01-01T23:59:59.000Z

    This publication Nuclear Reactors and Technology (NRT) announces on a monthly basis the current worldwide information available from the open literature on nuclear reactors and technology, including all aspects of power reactors, components and accessories, fuel elements, control systems, and materials. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past month. Also included are US information obtained through acquisition programs or interagency agreements and international information obtained through acquisition programs or interagency agreements and international information obtained through the International Energy Agency`s Energy Technology Data Exchange or government-to-government agreements. The digests in NRT and other citations to information on nuclear reactors back to 1948 are available for online searching and retrieval on the Energy Science and Technology Database and Nuclear Science Abstracts (NSA) database. Current information, added daily to the Energy Science and Technology Database, is available to DOE and its contractors through the DOE Integrated Technical Information System. Customized profiles can be developed to provide current information to meet each user`s needs.

  13. Surveying Diffusion in Complex Geometries. An Essay

    E-Print Network [OSTI]

    Grebenkov, Denis

    2009-01-01T23:59:59.000Z

    The surrounding world surprises us by the beauty and variety of complex shapes that emerge from nanometric to macroscopic scales. Natural or manufactured materials (sandstones, sedimentary rocks and cement), colloidal solutions (proteins and DNA), biological cells, tissues and organs (lungs, kidneys and placenta), they all present irregularly shaped "scenes" for a fundamental transport "performance", that is, diffusion. Here, the geometrical complexity, entangled with the stochastic character of diffusive motion, results in numerous fascinating and sometimes unexpected effects like diffusion screening or localization. These effects control many diffusion-mediated processes that play an important role in heterogeneous catalysis, biochemical mechanisms, electrochemistry, growth phenomena, oil recovery, or building industry. In spite of a long and rich history of academic and industrial research in this field, it is striking to see how little we know about diffusion in complex geometries, especially the one whic...

  14. Inverse diffusion from knowledge of power densities

    E-Print Network [OSTI]

    Bal, Guillaume; Monard, Francois; Triki, Faouzi

    2011-01-01T23:59:59.000Z

    This paper concerns the reconstruction of a diffusion coefficient in an elliptic equation from knowledge of several power densities. The power density is the product of the diffusion coefficient with the square of the modulus of the gradient of the elliptic solution. The derivation of such internal functionals comes from perturbing the medium of interest by acoustic (plane) waves, which results in small changes in the diffusion coefficient. After appropriate asymptotic expansions and (Fourier) transformation, this allow us to construct the power density of the equation point-wise inside the domain. Such a setting finds applications in ultrasound modulated electrical impedance tomography and ultrasound modulated optical tomography. We show that the diffusion coefficient can be uniquely and stably reconstructed from knowledge of a sufficient large number of power densities. Explicit expressions for the reconstruction of the diffusion coefficient are also provided. Such results hold for a large class of boundary...

  15. Image description. Cover Image End of image description. NATIONAL CENTER FOR EDUCATION STATISTICS

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    a context for examining the data they submitted to IPEDS. Our goal is to produce a report that is useful University 2 #12;Image description. Bar chart with 10 groups with 2 items per group.Y scale titled Percent

  16. Time evolution of negative binomial optical field in diffusion channel

    E-Print Network [OSTI]

    Liu Tang-Kun; Wu Pan-Pan; Shan Chuan-Jia; Liu Ji-Bing; Fan Hong-Yi

    2015-04-17T23:59:59.000Z

    We find time evolution law of negative binomial optical field in diffusion channel. We reveal that by adjusting the diffusion parameter, photon number can controlled. Therefore, the diffusion process can be considered a quantum controlling scheme through photon addition.

  17. Microfluidic Investigation of Tracer Dye Diffusion in Alumina Nanofluids 

    E-Print Network [OSTI]

    Ozturk, Serdar 1979-

    2012-10-05T23:59:59.000Z

    on enhanced mass diffusion and the possibility of tailoring mass transport by direct manipulation of molecular diffusion. Therefore, a microfluidic approach capable of directly probing tracer diffusion between nanoparticle-laden fluid streams was developed...

  18. Review of enhanced vapor diffusion in porous media

    SciTech Connect (OSTI)

    Webb, S.W.; Ho, C.K.

    1998-08-01T23:59:59.000Z

    Vapor diffusion in porous media in the presence of its own liquid has often been treated similar to gas diffusion. The gas diffusion rate in porous media is much lower than in free space due to the presence of the porous medium and any liquid present. However, enhanced vapor diffusion has also been postulated such that the diffusion rate may approach free-space values. Existing data and models for enhanced vapor diffusion, including those in TOUGH2, are reviewed in this paper.

  19. Inductive Corrections of Action Descriptions Marcello Balduccini

    E-Print Network [OSTI]

    Zhang, Yuanlin

    description AD is a set of dynamic laws and state constraints1 . A recorded history up to step cT, Hc, its head holds. 1. h(L, T) s law(W), head(W, L), prec h(W, T). % If the preconditions hold and the action occurred, the head holds at the next step. 2. h(L, T + 1) d law(W), head(W, L), prec h(W, T

  20. ar diffusion coefficient: Topics by E-print Network

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

    diffusion is examined. Kazuhiko Seki; Saurabh Mogre; Shigeyuki Komura 2014-02-05 4 Fractal diffusion coefficient from dynamical zeta functions Nonlinear Sciences (arXiv)...

  1. axial diffusion coefficient: Topics by E-print Network

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

    diffusion is examined. Kazuhiko Seki; Saurabh Mogre; Shigeyuki Komura 2014-02-05 5 Fractal diffusion coefficient from dynamical zeta functions Nonlinear Sciences (arXiv)...

  2. Pore-Scale Simulation of Intragranular Diffusion: Effects of...

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

    Simulation of Intragranular Diffusion: Effects of Incomplete Mixing on Macroscopic Manifestations. Pore-Scale Simulation of Intragranular Diffusion: Effects of Incomplete Mixing on...

  3. Quantitative analysis of the diffusion of hydrogen peroxide through teeth

    E-Print Network [OSTI]

    Petersen, Brenden Kyle

    2012-01-01T23:59:59.000Z

    activation  properties  of  hydrogen  peroxide  diffusion  the   transport   properties   of   hydrogen   peroxide  Hydrogen   peroxide   has   been   shown   to   readily   diffuse   through   both   enamel   and   dentin,   with   transport   properties  

  4. Mixing it up - Measuring diffusion in supercooled liquid solutions...

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

    Mixing it up - Measuring diffusion in supercooled liquid solutions of methanol and ethanol at temperatures near the glass Mixing it up - Measuring diffusion in supercooled liquid...

  5. Microscopic Reactive Diffusion of Uranium in the Contaminated...

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

    Reactive Diffusion of Uranium in the Contaminated Sediments at Hanford, United States. Microscopic Reactive Diffusion of Uranium in the Contaminated Sediments at Hanford, United...

  6. Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of...

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

    Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of Titanium Oxygen Diffusion (OD) Dramatically Improves Wear-Resistance of Titanium 2007 Diesel Engine-Efficiency &...

  7. Portsmouth Gaseous Diffusion Plant - Quadrant I Groundwater Investigat...

    Office of Environmental Management (EM)

    Portsmouth Gaseous Diffusion Plant - Quadrant I Groundwater Investigative (5-Unit) Area Plume Portsmouth Gaseous Diffusion Plant - Quadrant I Groundwater Investigative (5-Unit)...

  8. Macroscopic description for networks of spiking neurons

    E-Print Network [OSTI]

    Ernest Montbrió; Diego Pazó; Alex Roxin

    2015-06-22T23:59:59.000Z

    A major goal of neuroscience, statistical physics and nonlinear dynamics is to understand how brain function arises from the collective dynamics of networks of spiking neurons. This challenge has been chiefly addressed through large-scale numerical simulations. Alternatively, researchers have formulated mean-field theories to gain insight into macroscopic states of large neuronal networks in terms of the collective firing activity of the neurons, or the firing rate. However, these theories have not succeeded in establishing an exact correspondence between the firing rate of the network and the underlying microscopic state of the spiking neurons. This has largely constrained the range of applicability of such macroscopic descriptions, particularly when trying to describe neuronal synchronization. Here we provide the derivation of a set of exact macroscopic equations for a network of spiking neurons. Our results reveal that the spike generation mechanism of individual neurons introduces an effective coupling between two biophysically relevant macroscopic quantities, the firing rate and the mean membrane potential, which together govern the evolution of the neuronal network. The resulting equations exactly describe all possible macroscopic dynamical states of the network, including states of synchronous spiking activity. Finally we show that the firing rate description is related, via a conformal map, with a low-dimensional description in terms of the Kuramoto order parameter, called Ott-Antonsen theory. We anticipate our results will be an important tool in investigating how large networks of spiking neurons self-organize in time to process and encode information in the brain.

  9. Molecular diffusion in plasma-polymerized tetrafluoroethylene

    SciTech Connect (OSTI)

    Butler, M.A.; Buss, R.J. (Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States))

    1992-11-01T23:59:59.000Z

    Diffusion of an array of molecules in micrometer-thick films of plasma-polymerized tetrafluoroethylene has been measured using an optical interferometric technique. The diffusivity is approximately independent of molecular size up to a molar volume of about 100 cm{sup 3} and drops rapidly for larger molecules. For much larger molecules no penetration of the films is observed. These results suggest that plasma-polymerized tetrafluoroethylene films are heavily cross linked and that this limits the size of the molecules that can penetrate the polymer. The temperature dependence and the molecular size dependence of the diffusivities are discussed in the context of free-volume theory.

  10. Simultaneous Measurement of Tracer and Interdiffusion Coefficients: An Isotopic Phenomenological Diffusion Formalism for the Binary Alloy

    SciTech Connect (OSTI)

    Belova, Irina [University of Newcastle, NSW, Australia; Kulkarni, Nagraj S [ORNL; Sohn, Yong Ho [University of Central Florida; Murch, Prof. Graeme [University of Newcastle, NSW, Australia

    2013-01-01T23:59:59.000Z

    In this paper, a new development of the classic Onsager phenomenological formalism is derived using relations based on linear response theory. The development concerns the correct description of the fluxes of the atomic isotopes. The resulting expressions in the laboratory frame are surprisingly simple and consist of terms coming from the standard interdiffusion expressions and from Fick s first law where the tracer diffusion coefficient is involved thus providing a better understanding of the relationship between the two approaches - Fick s first law and the Onsager phenomenological formalism. From an experimental application perspective, the new development is applied to the binary alloy case. The formalism provides the means to obtain the interdiffusion coefficient and tracer diffusion coefficients simultaneously from analysis of the interdiffusion concentration profiles in a single experiment.

  11. L\\'evy Fluctuations and Tracer Diffusion in Dilute Suspensions of Algae and Bacteria

    E-Print Network [OSTI]

    Zaid, Irwin M; Yeomans, Julia M

    2010-01-01T23:59:59.000Z

    Swimming microorganisms rely on effective mixing strategies to achieve efficient nutrient influx. Recent experiments, probing the mixing capability of unicellular biflagellates, revealed that passive tracer particles exhibit anomalous non-Gaussian diffusion when immersed in a dilute suspension of self-motile Chlamydomonas reinhardtii algae. Qualitatively, this observation can be explained by the fact that the algae induce a fluid flow that may occasionally accelerate the colloidal tracers to relatively large velocities. A satisfactory quantitative theory of enhanced mixing in dilute active suspensions, however, is lacking at present. In particular, it is unclear how non-Gaussian signatures in the tracers' position distribution are linked to the self-propulsion mechanism of a microorganism. Here, we develop a systematic theoretical description of anomalous tracer diffusion in active suspensions, based on a simplified tracer-swimmer interaction model that captures the typical distance scaling of a microswimmer'...

  12. DOE NABIR PI Workshop: Abstracts 2002

    SciTech Connect (OSTI)

    Hawkes (Editor), Dan

    2002-01-09T23:59:59.000Z

    The mission of the NABIR program is to provide the fundamental science that will serve as the basis for the development of cost-effective bioremediation and long-term stewardship of radionuclides and metals in the subsurface at DOE sites. The focus of the program is on strategies leading to long-term immobilization of contaminants in place to reduce the risk to humans and the environment. Contaminants of special interest are uranium, technetium, plutonium, chromium, and mercury. The focus of the NABIR program is on the bioremediation of these contaminants in the subsurface below the root zone, including both vadose and saturated zones. The program is implemented through four interrelated scientific research elements (Biogeochemistry, Biomolecular Science and Engineering, Biotransformation, and Community Dynamics/Microbial Ecology); and through an element called Bioremediation and its Societal Implications and Concerns (BASIC), which addresses societal issues and potential concerns of stakeholders. The material presented at this year's workshop focuses on approximately 60 research projects funded in FY 2000-2002 by DOE's Office of Biological and Environmental Research (BER). Abstracts of NABIR research projects are provided in this book.

  13. DOE-NABIR PI Workshop: Abstracts 2003

    SciTech Connect (OSTI)

    Various

    2003-01-28T23:59:59.000Z

    The mission of the NABIR program is to provide the fundamental science that will serve as the basis for the development of cost-effective bioremediation and long-term stewardship of radionuclides and metals in the subsurface at DOE sites. The focus of the program is on strategies leading to long-term immobilization of contaminants in situ to reduce the risk to humans and the environment. Contaminants of special interest are uranium, technetium, plutonium, chromium, and mercury. The focus of the NABIR program is on the bioremediation of these contaminants in the subsurface below the root zone, including both vadose and saturated zones. The program consists of four interrelated Science Elements (Biotransformation, Community Dynamics/Microbial Ecology, Biomolecular Science and Engineering, and Biogeochemistry). The program also has a cross-cutting Assessment Element that supports development of innovative approaches and technologies to support the science elements. An element called Bioremediation and its Societal Implications and Concerns (BASIC) addresses potential societal issues of implementing NABIR scientific findings. The material presented at this year's workshop focuses on approximately 60 research projects funded in FY 2000-2003 by the Environmental Remediation Sciences Division in DOE's Office of Biological and Environmental Research (BER) in the Office of Science. Abstracts of NABIR research projects are provided in this book.

  14. ABSTRACT : Wave propagation phenomena in soils can be experimentally simulated using centrifuge scale models. An original excitation device (drop-ball arrangement) is proposed to generate short wave trains.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ABSTRACT : Wave propagation phenomena in soils can be experimentally simulated using centrifuge. Propagation is investigated through dispersion laws. For drop-ball experiments, spherical wave field analysis assuming linear viscoelasticity leads to a complete analytical description of wave propagation. Damping

  15. Transport of heat and mass in a two-phase mixture. From a continuous to a discontinuous description

    E-Print Network [OSTI]

    Kirill Glavatskiy; Dick Bedeaux

    2010-06-30T23:59:59.000Z

    We present a theory which describes the transport properties of the interfacial region with respect to heat and mass transfer. Postulating the local Gibbs relation for a continuous description inside the interfacial region, we derive the description of the Gibbs surface in terms of excess densities and fluxes along the surface. We introduce overall interfacial resistances and conductances as the coefficients in the force-flux relations for the Gibbs surface. We derive relations between the local resistivities for the continuous description inside the interfacial region and the overall resistances of the surface for transport between the two phases for a mixture. It is shown that interfacial resistances depend among other things on the enthalpy profile across the interface. Since this variation is substantial the coupling between heat and mass flow across the surface are also substantial. In particular, the surface puts up much more resistance to the heat and mass transfer then the homogeneous phases over a distance comparable to the thickness of the surface. This is the case not only for the pure heat conduction and diffusion but also for the cross effects like thermal diffusion. For the excess fluxes along the surface and the corresponding thermodynamic forces we derive expressions for excess conductances as integrals over the local conductivities along the surface. We also show that the curvature of the surface affects only the overall resistances for transport across the surface and not the excess conductivities along the surface.

  16. JUMP DIFFUSION OPTION WITH TRANSACTION COSTS

    E-Print Network [OSTI]

    Mocioalca, Oana

    JUMP DIFFUSION OPTION WITH TRANSACTION COSTS "non-systematic" risk, inclusive of transaction costs. We compute the total transac- tion costs and the turnover for different options, transaction costs, and revision intervals

  17. Determination of diffusion coefficient for unsaturated soils 

    E-Print Network [OSTI]

    Sood, Eeshani

    2005-08-29T23:59:59.000Z

    is non-linear but due to the complexity involved it has been simplified to a linear problem. The nonlinear behavior has been studied during this research. Therefore, certain refinements have been applied in the determination of the diffusion coefficient...

  18. Diffusion, dimensionality and noise in transcriptional regulation

    E-Print Network [OSTI]

    Gasper Tkacik; William Bialek

    2007-12-12T23:59:59.000Z

    The precision of biochemical signaling is limited by randomness in the diffusive arrival of molecules at their targets. For proteins binding to the specific sites on the DNA and regulating transcription, the ability of the proteins to diffuse in one dimension by sliding along the length of the DNA, in addition to their diffusion in bulk solution, would seem to generate a larger target for DNA binding, consequently reducing the noise in the occupancy of the regulatory site. Here we show that this effect is largely cancelled by the enhanced temporal correlations in one dimensional diffusion. With realistic parameters, sliding along DNA has surprisingly little effect on the physical limits to the precision of transcriptional regulation.

  19. Diffuse reflectance imaging with astronomical applications

    E-Print Network [OSTI]

    Hasinoff, Samuel W.

    Diffuse objects generally tell us little about the surrounding lighting, since the radiance they reflect blurs together incident lighting from many directions. In this paper we discuss how occlusion geometry can help invert ...

  20. Electrospray emitters For diffusion vacuum pumps

    E-Print Network [OSTI]

    Diaz Gómez Maqueo, Pablo (Pablo Ly)

    2011-01-01T23:59:59.000Z

    Following similar principles as regular diffusion vacuum pumps, an electrospray emitter is set to produce a jet of charged particles that will drag air molecules out of a volume. To be a feasible concept, the emitted ...

  1. Princeton University Diffusion of Networking Technologies

    E-Print Network [OSTI]

    Goldberg, Sharon

    Electronic Commerce (EC'12) Valencia, Spain June 7, 2012 ISP #12;Seedset: A set of nodes that can kick off, photovoltaics, fax, computers, Internet, video games, ... Source: Rogers. "The Diffusion of Home Computers Among

  2. DIFFUSION MEDIATED TRANSPORT AND THE BROWNIAN MOTOR

    E-Print Network [OSTI]

    DIFFUSION MEDIATED TRANSPORT AND THE BROWNIAN MOTOR David Kinderlehrer Center for Nonlinear in small viscous systems and provide brief illustrations to brownian motor or molecular rachet situations which are found in intracellular transport. Keywords: Brownian motor, molecular rachet, motor protein

  3. Novel applications of diffusion-driven flow

    E-Print Network [OSTI]

    Allshouse, Michael R

    2010-01-01T23:59:59.000Z

    Diffusion-driven flow is the result of a conflict between hydrostatic equilibrium in a density stratified fluid and the no-flux boundary condition that must be obeyed on impermeable boundaries that are sloping with respect ...

  4. PART I: JOB DESCRIPTION Weighted Job Questionnaire (WJQ) Custom

    E-Print Network [OSTI]

    PART I: JOB DESCRIPTION Weighted Job Questionnaire (WJQ) Custom Department Name: Student,1412 SIMON FRASER UNIVERSITY & C.U.P.E., Local 3338 JOB DESCRIPTION 1. POSITION IDENTIFICATION Department

  5. PARTI: JOB DESCRIPTION Weighted Job Questionnaire (WJQ) Custom

    E-Print Network [OSTI]

    PARTI: JOB DESCRIPTION Weighted Job Questionnaire (WJQ) Custom Meeting, Event and Conference UNIVERSITY & C.U.P.E., Local 3338 WEIGHTED JOB QUESTIONNAIRE (WJQ) CUSTOM PARTI: JOB DESCRIPTION 1. POSITION

  6. Diffusion Preconditioner for Discontinuous Galerkin Transport Problems

    E-Print Network [OSTI]

    Barbu, Anthony Petru

    2011-08-08T23:59:59.000Z

    DIFFUSION PRECONDITIONER FOR DISCONTINUOUS GALERKIN TRANSPORT PROBLEMS A Thesis by ANTHONY PETRU BARBU Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER... OF SCIENCE May 2011 Major Subject: Nuclear Engineering DIFFUSION PRECONDITIONER FOR DISCONTINUOUS GALERKIN TRANSPORT PROBLEMS A Thesis by ANTHONY PETRU BARBU Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment...

  7. Diffusion Simulation and Lifetime Calculation at RHIC

    SciTech Connect (OSTI)

    Abreu,N.P.; Fischer, W.; Luo, Y.; Robert-Demolaize, G.

    2009-01-02T23:59:59.000Z

    The beam lifetime is an important parameter for any storage ring. For protons in RHIC it is dominated by the non-linear nature of the head-on collisions that causes the particles to diffuse outside the stable area in phase space. In this report we show results from diffusion simulation and lifetime calculation for the 2006 and 2008 polarized proton runs in RHIC.

  8. Selected Abstracts & Bibliography of International Oil Spill Research, through 1998

    E-Print Network [OSTI]

    Louisiana Applied Oil Spill Research & Development Program Electronic Bibliography

    1998-01-01T23:59:59.000Z

    Quarterly. 7(3) Energy Research Abstracts. 1987. Spills-of-Energy Daily. 18:139. Energy Research Abstracts. 1987. FieldResponse. 96pp. ERA (Energy Research Abstracts), ETD (Energy

  9. Process Abstraction in the Verification of Temporal Properties 

    E-Print Network [OSTI]

    Bruns, Glen R

    as abstraction operations. We show that an abstract process satisfies a property expressed as a temporal logic formula just if the original process satisfies a transformed formula. We define various abstraction operators and illustrate their use in verification...

  10. SY101 in situ viscometer instrument system design description

    SciTech Connect (OSTI)

    Pearce, K.L.; Stokes, T.I.; Vagelatos, N.

    1994-08-18T23:59:59.000Z

    This documents the design and description of the in situ viscometer, developed for the hydrogen mitigation project.

  11. STEP Energy Coach and Technical Consultant Job Descriptions

    Broader source: Energy.gov [DOE]

    STEP Energy Coach and Technical Consultant Job Descriptions, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  12. abstracting code specific: Topics by E-print Network

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

    Poster: 4195B656 Abstract Title: Specification of Multiple Ganglion Cell Stimulation Codes for Engineering Websites Summary: ProgramPoster: 4195B656 Abstract Title:...

  13. Composable abstractions for synchronization in dynamic threading platforms

    E-Print Network [OSTI]

    Sukha, Jim

    2011-01-01T23:59:59.000Z

    High-level abstractions for parallel programming simplify the development of efficient parallel applications. In particular, composable abstractions allow programmers to construct a complex parallel application out of ...

  14. ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues...

    Energy Savers [EERE]

    ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues In a Densified Large Square Bale Format ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues In a...

  15. Lawson Job Description Acknowledgment Verification Instructions Log In to Lawson

    E-Print Network [OSTI]

    Gleeson, Joseph G.

    Lawson Job Description Acknowledgment Verification Instructions · Log In to Lawson o Lawson Web Lawson e-mail your password to you. Updated 3/15/10 Page 1 of 3 #12;Lawson Job Description Acknowledgment Verification Instructions Click "Employee's Sign-off of their Job Description" · Click "Employee's Sign

  16. Definite Descriptions, Focus Shift, and a Theory of Discourse Interpretation

    E-Print Network [OSTI]

    Poesio, Massimo

    Definite Descriptions, Focus Shift, and a Theory of Discourse Interpretation Massimo Poesio Centre of situations and their hierarchical organization. 1 Ingredients of a Theory of Definite Description Inter­ pretation A theory of definite description (DD) interpretation must build on a general theory of discourse

  17. Alternative description of particle shower longitudinal profile

    E-Print Network [OSTI]

    Ter-Antonyan, Samvel

    2015-01-01T23:59:59.000Z

    Alternative parameterization of particle shower longitudinal profile is presented. The accuracy of obtained shower profile description is about 2-3% for the 0-1500 g/cm^2 atmosphere slant depths and primary H, He,... Fe nuclei in 1 PeV-10 EeV energy range. It is shown that the shape of shower profile depends only on the nucleon energy, whereas the maximum shower size also depends on the energy of parental nucleus. Results are based on the CORSIKA simulated shower profiles and are presented in comparison with Gaisser-Hillas parameterization.

  18. Description of Energy Intensity Tables (12)

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    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 1,006 492 742 33 111 1,613 122 40CoalLease(Billion2,128 2,469Decade Year-0Cubic Feet)Delaware23. Description

  19. Property:File/Description | 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 beingZealand Jump to:Ezfeedflag Jump to: navigation, search Property Name EzfeedflagDescription Jump to:

  20. Property:Technology Description | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethod Jump to:This property is setSimulatedDescription Property

  1. Determination of Matrix Diffusion Properties of Granite

    SciTech Connect (OSTI)

    Holtta, Pirkko; Siitari-Kauppi, Marja; Huittinen, Nina [Laboratory of Radiochemistry, P.O. Box 55, University of Helsinki, FI-00014 (Finland); Poteri, Antti [VTT Processes, P.O. Box 1608, VTT, FI-02044 (Finland)

    2007-07-01T23:59:59.000Z

    Rock-core column experiments were introduced to estimate the diffusion and sorption properties of Kuru Grey granite used in block-scale experiments. The objective was to examine the processes causing retention in solute transport through rock fractures, especially matrix diffusion. The objective was also to estimate the importance of retention processes during transport in different scales and flow conditions. Rock-core columns were constructed from cores drilled into the fracture and were placed inside tubes to form flow channels in the 0.5 mm gap between the cores and the tube walls. Tracer experiments were performed using uranin, HTO, {sup 36}Cl, {sup 131}I, {sup 22}Na and {sup 85}Sr at flow rates of 1-50 {mu}L.min{sup -1}. Rock matrix was characterized using {sup 14}C-PMMA method, scanning electron microscopy (SEM), energy dispersive X-ray micro analysis (EDX) and the B.E.T. method. Solute mass flux through a column was modelled by applying the assumption of a linear velocity profile and molecular diffusion. Coupling of the advection and diffusion processes was based on the model of generalised Taylor dispersion in the linear velocity profile. Experiments could be modelled applying a consistent parameterization and transport processes. The results provide evidence that it is possible to investigate matrix diffusion at the laboratory scale. The effects of matrix diffusion were demonstrated on the slightly-sorbing tracer breakthrough curves. Based on scoping calculations matrix diffusion begins to be clearly observable for non-sorbing tracer when the flow rate is 0.1 {mu}L.min{sup -1}. The experimental results presented here cannot be transferred directly to the spatial and temporal scales that prevail in an underground repository. However, the knowledge and understanding of transport and retention processes gained from this study is transferable to different scales from laboratory to in-situ conditions. (authors)

  2. diffusion-fundamentals The Open-Access Journal for the Basic Principles of Diffusion Theory, Experiment and Application

    E-Print Network [OSTI]

    Schuck, Götz

    × 10­10 H+ -Diffusion, symmetr. H-bond (TD) ~0.3 4 × 10­09 The method allowing us to isolate specificdiffusion-fundamentals The Open-Access Journal for the Basic Principles of Diffusion Theory, Experiment and Application www.diffusion-fundamentals.org, ISSN 1862-4138; © 2005-2010 Diffusion Fundamentals

  3. An operational semantics of a timely bounded agent abstract machine

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An operational semantics of a timely bounded agent abstract machine Technical Report LIRMM #RR an agent abstract machine and its operational semantics. The dynamics of the agent abstract machine of the agent abstract machine using parallel evaluations. Simplicity and expressiveness are important features

  4. A pumping system for measuring coastal diffusion coefficients 

    E-Print Network [OSTI]

    Bolen, Zane Kevin

    1980-01-01T23:59:59.000Z

    system was used to measure surface horizontal diffusion coefficients in the vicin- ity of the diffuser. These experiments were also used to develop tech- niques of underway sampling as well as measuring site specific horizon- tal diffusion... coefficients. Measurement of horizontal diffusion coef- ficients used a continuous point source of tracer material to produce a plume that could be profiled using the pumping system connected to a fluorometer. The resultant horizontal diffusion coefficients...

  5. Subsurface and surface oceanic diffusion experiments near Freeport, Texas

    E-Print Network [OSTI]

    Berry, Alan Dale

    1981-01-01T23:59:59.000Z

    . The results indicate that a power law relationship between the dye distribution variance and the diffusion time is appropriate for horizontal diffusion and that Fickian diffusion adequately describes vertical diffusion. Recommended horizontal and vertical... as From Equations 2 and 3, it can be seen that K may not increase Y linearly with time, but instead by time raised to a power, which will be discussed later in this report. Harramoes (11) suggests that the Fickian diffusion equation is appropriate when...

  6. The Diffusive Finite State Projection Algorithm for Efficient Simulation of the Stochastic Reaction-Diffusion Master

    E-Print Network [OSTI]

    Petzold, Linda R.

    strategy. A novel formulation of the Finite State Projection (FSP) method, called the Diffusive FSP (DFSP (FSP) method [8], called the Diffusive FSP (DFSP) method, for the efficient and accurate simulation with DFSP and reactions with SSA. The dynamics of spatially inhomogeneous stochastic systems are governed

  7. Description and validation of ERAD: An atmospheric dispersion model for high explosive detonations

    SciTech Connect (OSTI)

    Boughton, B.A.; DeLaurentis, J.M.

    1992-10-01T23:59:59.000Z

    The Explosive Release Atmospheric Dispersion (ERAD) model is a three-dimensional numerical simulation of turbulent atmospheric transport and diffusion. An integral plume rise technique is used to provide a description of the physical and thermodynamic properties of the cloud of warm gases formed when the explosive detonates. Particle dispersion is treated as a stochastic process which is simulated using a discrete time Lagrangian Monte Carlo method. The stochastic process approach permits a more fundamental treatment of buoyancy effects, calm winds and spatial variations in meteorological conditions. Computational requirements of the three-dimensional simulation are substantially reduced by using a conceptualization in which each Monte Carlo particle represents a small puff that spreads according to a Gaussian law in the horizontal directions. ERAD was evaluated against dosage and deposition measurements obtained during Operation Roller Coaster. The predicted contour areas average within about 50% of the observations. The validation results confirm the model`s representation of the physical processes.

  8. Topology, finite time Lyapunov exponents, and barriers for diffusive transport in advection-diffusion problems

    SciTech Connect (OSTI)

    Tang, Xianzhu [College of William and Mary, Williamsburg, VA (United States); Boozer, A.H. [Columbia Univ., New York, NY (United States)

    1996-12-31T23:59:59.000Z

    A wide range of transport problems are of advection-diffusion type. Typical fluid problems of this type are the relaxation of temperature differences in a room or the spread of a contaminant in a river. Important examples in plasma include the relaxation of electrons in a region of stochastic magnetic field lines and the evolution of the magnetic field embedded in a conducting fluid. The archetypal model equation is the advection-diffusion equation. The quantity being transported is {phi}. The flow velocity of the medium, v(x, t), is assumed given and independent of {phi}. The diffusive flux is {Tau}{sub d} = -D{del}{phi}. If the flow is chaotic, the properties of the transport are determined by the spatial and time dependence of the finite time Lyapunov exponent {lambda}({xi}, t). The rapid diffusive transport occurs only along the field line (s line) of the vector s, which defines the stable direction in which neighboring points asymptotically converge. The topology of the s lines affects the diffusive transport through the finite time Lyapunov exponent. We discover that the spatial variation of the finite time Lyapunov exponent along the s lines is smooth and determined by the topology of the s lines. For example, the finite time Lyapunov exponent reaches local minima if the s line makes a sharp bend. These topological bends hinder the diffusive transport and act as a barrier for diffusive relaxation. Such barriers for diffusion reside inside the chaotic region and they persist even the flow is highly chaotic. In the case of the electron relaxation in a region of stochastic field lines, there is a rapid diffusive relaxation of the spatial inhomogeneity in the electron distribution function which is typical of the chaotic transport of a passive scalar. But the diffusive relaxation of the pitch angle distribution is much slower.

  9. A simple mathematical description of an off-grid hybrid solarwind power generating system This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Blasone, Massimo

    A simple mathematical description of an off-grid hybrid solar­wind power generating system/763 Abstract We give a detailed description of the energy balance equation for a stand-alone hybrid solar­wind degree of availability of solar and wind power, renewable sources could in the future fulfil planetary

  10. Fault Characterization using Induced Electric Currents Presumed to Undergo Anomalous Diffusion in Mason, Texas

    E-Print Network [OSTI]

    Murphy, Blaine Cullen

    2014-08-01T23:59:59.000Z

    FAULT CHARACTERIZATION USING INDUCED ELECTRIC CURRENTS PRESUMED TO UNDERGO ANOMALOUS DIFFUSION IN MASON, TEXAS A Thesis by BLAINE CULLEN MURPHY Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial... Blaine Cullen Murphy ABSTRACT A tensorial (9-component) controlled source electromagnetic survey over an oblique slip fault in Mason County, Texas was acquired and the data were analyzed in order to characterize the structure of the fault and observe...

  11. Compensation of the Meyer-Neldel Compensation Law for H diffusion in1 Alan G. Jones, Dublin Institute for Advanced Studies, Dublin 2, Ireland (alan@cp.dias.ie)4

    E-Print Network [OSTI]

    Jones, Alan G.

    Compensation of the Meyer-Neldel Compensation Law for H diffusion in1 minerals2 3 Alan G. Jones/Transport Properties17 Keywords:18 Meyer-Neldel Rule, Compensation Law, Hydrogen Diffusion, Minerals19 #12;Abstract20 The Meyer-Neldel Rule (MNR), or compensation law, linearly relates the pre-exponent term21 to the logarithm

  12. Directions to Petroleum Abstracts Petroleum Abstracts' main office is located in the basement of John Rogers Hall (JRH)

    E-Print Network [OSTI]

    Reynolds, Albert C.

    Directions to Petroleum Abstracts Petroleum Abstracts' main office is located in the basement approximately 2 blocks West of South Harvard Avenue. Petroleum Abstracts' office (Room 1520) is on the basement wish to visit Petroleum Abstracts and they will contact us to direct you to our office in the basement

  13. Reverse-selective diffusion in nanocomposite membranes

    E-Print Network [OSTI]

    Reghan J. Hill

    2005-10-27T23:59:59.000Z

    The permeability of certain polymer membranes with impenetrable nanoinclusions increases with the particle volume fraction (Merkel et al., Science, 296, 2002). This intriguing observation contradicts even qualitative expectations based on Maxwell's classical theory of conduction/diffusion in composites with homogeneous phases. This letter presents a simple theoretical interpretation based on classical models of diffusion and polymer physics. An essential feature of the theory is a polymer-segment depletion layer at the inclusion-polymer interface. The accompanying increase in free volume leads to a significant increase in the local penetrant diffusivity, which, in turn, increases the bulk permeability while exhibiting reverse selectivity. This model captures the observed dependence of the bulk permeability on the inclusion size and volume fraction, providing a straightforward connection between membrane microstructure and performance.

  14. Robust diffusion imaging framework for clinical studies

    E-Print Network [OSTI]

    Maximov, Ivan I; Neuner, Irene; Shah, N Jon

    2015-01-01T23:59:59.000Z

    Clinical diffusion imaging requires short acquisition times and good image quality to permit its use in various medical applications. In turn, these demands require the development of a robust and efficient post-processing framework in order to guarantee useful and reliable results. However, multiple artefacts abound in in vivo measurements; from either subject such as cardiac pulsation, bulk head motion, respiratory motion and involuntary tics and tremor, or imaging hardware related problems, such as table vibrations, etc. These artefacts can severely degrade the resulting images and render diffusion analysis difficult or impossible. In order to overcome these problems, we developed a robust and efficient framework enabling the use of initially corrupted images from a clinical study. At the heart of this framework is an improved least trimmed squares diffusion tensor estimation algorithm that works well with severely degraded datasets with low signal-to-noise ratio. This approach has been compared with other...

  15. Diffusion in a rough potential revisited

    E-Print Network [OSTI]

    Banerjee, Saikat; Seki, Kazuhiko; Bagchi, Biman

    2014-01-01T23:59:59.000Z

    Rugged energy landscapes find wide applications in diverse fields ranging from astrophysics to protein folding. We study the dependence of diffusion coefficient $(D)$ of a Brownian particle on the distribution width $(\\varepsilon)$ of randomness in a Gaussian random landscape by simulations and theoretical analysis. We first show that the elegant expression of Zwanzig [PNAS, 85, 2029 (1988)] for $D(\\varepsilon)$ can be reproduced exactly by using the Rosenfeld diffusion-entropy scaling relation. Our simulations show that Zwanzig's expression overestimates $D$ in an uncorrelated Gaussian random lattice - differing by almost an order of magnitude at moderately high ruggedness. The disparity originates from the presence of "three-site traps" (TST) on the landscape -- which are formed by the presence of deep minima flanked by high barriers on either side. Using mean first passage time formalism, we derive a general expression for the effective diffusion coefficient in the presence of TST, that quantitatively repr...

  16. Cosmic-ray diffusion in magnetized turbulence

    E-Print Network [OSTI]

    Tautz, R C

    2015-01-01T23:59:59.000Z

    The problem of cosmic-ray scattering in the turbulent electromagnetic fields of the interstellar medium and the solar wind is of great importance due to the variety of applications of the resulting diffusion coefficients. Examples are diffusive shock acceleration, cosmic-ray observations, and, in the solar system, the propagation of coronal mass ejections. In recent years, it was found that the simple diffusive motion that had been assumed for decades is often in disagreement both with numerical and observational results. Here, an overview is given of the interaction processes of cosmic rays and turbulent electromagnetic fields. First, the formation of turbulent fields due to plasma instabilities is treated, where especially the non-linear behavior of the resulting unstable wave modes is discussed. Second, the analytical and the numerical side of high-energy particle propagation will be reviewed by presenting non-linear analytical theories and Monte-Carlo simulations. For the example of the solar wind, the im...

  17. EFFECT OF STRESS GRADIENT AT THE VICINITY OF A CRACK TIP ON IONIC DIFFUSION IN SILICATE GLASSES: AN AFM STUDY.

    E-Print Network [OSTI]

    Demouchy, Sylvie

    1 EFFECT OF STRESS GRADIENT AT THE VICINITY OF A CRACK TIP ON IONIC DIFFUSION IN SILICATE GLASSES.marliere@univ-montp2.fr ABSTRACT The slow advance of a crack in sodo-silicate glasses was studied at nanometer scale-micrometric vicinity of the tip of a crack running in silicate glass with mobile ions (as sodium cations) and check

  18. Higher-Order Tensors in Diffusion Imaging Thomas Schultz, Andrea Fuster, Aurobrata Ghosh, Rachid Deriche, Luc Florack,

    E-Print Network [OSTI]

    Lim, Lek-Heng

    Deriche, Luc Florack, Lek-Heng Lim Abstract Diffusion imaging is a noninvasive tool for probing.ghosh,rachid.deriche}@inria.fr Lek-Heng Lim University of Chicago, USA. e-mail: lekheng@uchicago.edu These authors have contributed

  19. 728 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 34, NO. 3, JUNE 2006 The Electron Diffusion Coefficient in Energy

    E-Print Network [OSTI]

    Kaganovich, Igor

    Coefficient in Energy in Bounded Collisional Plasmas Lev D. Tsendin Abstract--The electron energies in typical, the momentum relaxation in collisions with neutrals is sig- nificantly faster than the energy relaxation due be de- scribed by a diffusion coefficient in energy . Both collisional and stochastic heating mechanisms

  20. Description and Drawings of the Human Leg

    E-Print Network [OSTI]

    Bigger, John Dinsmore

    1909-01-01T23:59:59.000Z

    Desoription and drawings of the human l e g . Description and Drawings of The Human Leg. John Bigger 1909. The Human Leg. The purpose of t h i s work i s to enable one to o b t a i n a more v i v i d and l a s t i n g idea of the r e l a t i o n... of the hones, muscles, "blood v e s s e l s , and nerves of the human l e g . To accomplish t h i s we took the r i g h t l e g of a-negro man and made twenty t h r u cross s e c t i o n s c o u n t i n g those of the f o o t . The l e g had "been p i c k l...

  1. Collective phase description of oscillatory convection

    SciTech Connect (OSTI)

    Kawamura, Yoji, E-mail: ykawamura@jamstec.go.jp [Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Yokohama 236-0001 (Japan)] [Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Yokohama 236-0001 (Japan); Nakao, Hiroya [Department of Mechanical and Environmental Informatics, Tokyo Institute of Technology, Tokyo 152-8552 (Japan)] [Department of Mechanical and Environmental Informatics, Tokyo Institute of Technology, Tokyo 152-8552 (Japan)

    2013-12-15T23:59:59.000Z

    We formulate a theory for the collective phase description of oscillatory convection in Hele-Shaw cells. It enables us to describe the dynamics of the oscillatory convection by a single degree of freedom which we call the collective phase. The theory can be considered as a phase reduction method for limit-cycle solutions in infinite-dimensional dynamical systems, namely, stable time-periodic solutions to partial differential equations, representing the oscillatory convection. We derive the phase sensitivity function, which quantifies the phase response of the oscillatory convection to weak perturbations applied at each spatial point, and analyze the phase synchronization between two weakly coupled Hele-Shaw cells exhibiting oscillatory convection on the basis of the derived phase equations.

  2. Self- and zinc diffusion in gallium antimonide

    SciTech Connect (OSTI)

    Nicols, Samuel Piers

    2002-03-26T23:59:59.000Z

    The technological age has in large part been driven by the applications of semiconductors, and most notably by silicon. Our lives have been thoroughly changed by devices using the broad range of semiconductor technology developed over the past forty years. Much of the technological development has its foundation in research carried out on the different semiconductors whose properties can be exploited to make transistors, lasers, and many other devices. While the technological focus has largely been on silicon, many other semiconductor systems have applications in industry and offer formidable academic challenges. Diffusion studies belong to the most basic studies in semiconductors, important from both an application as well as research standpoint. Diffusion processes govern the junctions formed for device applications. As the device dimensions are decreased and the dopant concentrations increased, keeping pace with Moore's Law, a deeper understanding of diffusion is necessary to establish and maintain the sharp dopant profiles engineered for optimal device performance. From an academic viewpoint, diffusion in semiconductors allows for the study of point defects. Very few techniques exist which allow for the extraction of as much information of their properties. This study focuses on diffusion in the semiconductor gallium antimonide (GaSb). As will become clear, this compound semiconductor proves to be a powerful one for investigating both self- and foreign atom diffusion. While the results have direct applications for work on GaSb devices, the results should also be taken in the broader context of III-V semiconductors. Results here can be compared and contrasted to results in systems such as GaAs and even GaN, indicating trends within this common group of semiconductors. The results also have direct importance for ternary and quaternary semiconductor systems used in devices such as high speed InP/GaAsSb/InP double heterojunction bipolar transistors (DHBT) [Dvorak, (2001)]. Many of the findings which will be reported here were previously published in three journal articles. Hartmut Bracht was the lead author on two articles on self-diffusion studies in GaSb [Bracht, (2001), (2000)], while this report's author was the lead author on Zn diffusion results [Nicols, (2001)]. Much of the information contained herein can be found in those articles, but a more detailed treatment is presented here.

  3. Fractal diffusion coefficient from dynamical zeta functions

    E-Print Network [OSTI]

    G. Cristadoro

    2005-09-28T23:59:59.000Z

    Dynamical zeta functions provide a powerful method to analyze low dimensional dynamical systems when the underlying symbolic dynamics is under control. On the other hand even simple one dimensional maps can show an intricate structure of the grammar rules that may lead to a non smooth dependence of global observable on parameters changes. A paradigmatic example is the fractal diffusion coefficient arising in a simple piecewise linear one dimensional map of the real line. Using the Baladi-Ruelle generalization of the Milnor-Thurnston kneading determinant we provide the exact dynamical zeta function for such a map and compute the diffusion coefficient from its smallest zero.

  4. Analytical solutions to matrix diffusion problems

    SciTech Connect (OSTI)

    Kekäläinen, Pekka, E-mail: pekka.kekalainen@helsinki.fi [Laboratory of Radiochemistry, Department of Chemistry, P.O. Box 55, FIN-00014 University of Helsinki (Finland)

    2014-10-06T23:59:59.000Z

    We report an analytical method to solve in a few cases of practical interest the equations which have traditionally been proposed for the matrix diffusion problem. In matrix diffusion, elements dissolved in ground water can penetrate the porous rock surronuding the advective flow paths. In the context of radioactive waste repositories this phenomenon provides a mechanism by which the area of rock surface in contact with advecting elements is greatly enhanced, and can thus be an important delay mechanism. The cases solved are relevant for laboratory as well for in situ experiments. Solutions are given as integral representations well suited for easy numerical solution.

  5. Effect of Diffusion on Bunched Beam Echo

    SciTech Connect (OSTI)

    Stupakov, G.V.; Chao, A.W.; /SLAC

    2011-09-01T23:59:59.000Z

    When a beam receives a dipole kick, its centroid signal decoheres due to the betatron tune spread in the beam. Long after the signal has decohered, however, a followup quadrupole kick to the beam brings a pronounced echo back to the centroid signal. This echo effect has been analyzed for the case of a bunched beam in Ref. [1]. In this work, the perturbation calculation of Ref. [1] is extended to include a diffusion in betatron amplitude. The effect of diffusion on the magnitude of the echo is then parameterized and studied.

  6. Goldschmidt Conference Abstracts 2005 Cosmogenic Nuclides and Surface Processes

    E-Print Network [OSTI]

    Zreda, Marek

    that include uncertainties of the sample and the standard measurement as well as the uncertainty of the blank computation of neutron fluxes at the air-ground interface. The currently-used diffusion equation under intensities; the most important are air pressure and geomagnetic cutoff rigidity of the sample site. The size

  7. Bundle: A Group Based Programming Abstraction for Cyber Physical Systems

    E-Print Network [OSTI]

    Stankovic, John A.

    ). Similar to other programming abstractions, a Bun- dle creates logical collections of sensing devices on feedback from the current members. The Bun- dle abstraction is implemented in Java which ensures ease

  8. On the Hardness of Optimal Auctions (Extended Abstract)

    E-Print Network [OSTI]

    Saberi, Amin

    On the Hardness of Optimal Auctions (Extended Abstract) Amir Ronen #3; Amin Saberi y Abstract We Berkeley. Email: saberi@cc.gatech.edu. problem which is perhaps the most basic in optimal auction design

  9. Policy space abstraction for a lifelong learning agent 

    E-Print Network [OSTI]

    Hawasly, Majd

    2014-11-27T23:59:59.000Z

    This thesis is concerned with policy space abstractions that concisely encode alternative ways of making decisions; dealing with discovery, learning, adaptation and use of these abstractions. This work is motivated by ...

  10. Division of Environmental Control Technology Program, 1979. [Lead abstract

    SciTech Connect (OSTI)

    None

    1980-06-01T23:59:59.000Z

    Separate abstracts were prepared for the 10 sections in this progress report dealing with environmental engineering. (KRM)

  11. JOHNSON-MATTHEY DIFFUSER CHARACTERIZATION TESTING

    SciTech Connect (OSTI)

    Foster, P; James Klein, J; Henry Sessions, H; Gregg Morgan, G

    2007-08-02T23:59:59.000Z

    A diffuser/permeator commercially fabricated by Johnson-Matthey was purchased for characterization testing at the Savannah River National Laboratory (SRNL). A test system was fabricated to not only feed and bleed flows and pressures, but also permeate pressure for flows up to 20 SLPM.

  12. Fluctuation bounds on charge and heat diffusion

    E-Print Network [OSTI]

    Pavel Kovtun

    2014-07-02T23:59:59.000Z

    We study thermal fluctuation corrections to charge and heat conductivity in systems with locally conserved energy and charge, but without locally conserved momentum. Thermal fluctuations may naturally lead to a lower bound on diffusion constants for thermoelectric transport, and need to be taken into account when discussing potential bounds on transport coefficients.

  13. Diffusive Acceleration of Ions at Interplanetary Shocks

    E-Print Network [OSTI]

    Matthew G. Baring; Errol J. Summerlin

    2005-06-08T23:59:59.000Z

    Heliospheric shocks are excellent systems for testing theories of particle acceleration in their environs. These generally fall into two classes: (1) interplanetary shocks that are linear in their ion acceleration characteristics, with the non-thermal ions serving as test particles, and (2) non-linear systems such as the Earth's bow shock and the solar wind termination shock, where the accelerated ions strongly influence the magnetohydrodynamic structure of the shock. This paper explores the modelling of diffusive acceleration at a particular interplanetary shock, with an emphasis on explaining in situ measurements of ion distribution functions. The observational data for this event was acquired on day 292 of 1991 by the Ulysses mission. The modeling is performed using a well-known kinetic Monte Carlo simulation, which has yielded good agreement with observations at several heliospheric shocks, as have other theoretical techniques, namely hybrid plasma simulations, and numerical solution of the diffusion-convection equation. In this theory/data comparison, it is demonstrated that diffusive acceleration theory can, to first order, successfully account for both the proton distribution data near the shock, and the observation of energetic protons farther upstream of this interplanetary shock than lower energy pick-up protons, using a single turbulence parameter. The principal conclusion is that diffusive acceleration of inflowing upstream ions can model this pick-up ion-rich event without the invoking any seed pre-acceleration mechanism, though this investigation does not rule out the action of such pre-acceleration.

  14. Magnetic flux diffusion through HTS shields

    E-Print Network [OSTI]

    Wong, Kai-Wai; Fan, C. X.; Havenhill, A. D.

    1998-06-01T23:59:59.000Z

    Slow field leakage in a polycrystalline superconducting cupshield placed in an external axial field (H-ext) much weaker than H-C1 shows a diffusive time dependence with a time scale of 10(2) s. As the field strength increases but is still less than...

  15. Inverse Problems for Fractional Diffusion Equations

    E-Print Network [OSTI]

    Zuo, Lihua

    2013-06-21T23:59:59.000Z

    and preliminaries in Section 1 and 2, in the third section we consider our first inverse boundary problem. This is where an unknown boundary condition is to be determined from overposed data in a time- fractional diffusion equation. Based upon the fundamental...

  16. Ternary gas mixture for diffuse discharge switch

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); Hunter, Scott R. (Oak Ridge, TN)

    1988-01-01T23:59:59.000Z

    A new diffuse discharge gas switch wherein a mixture of gases is used to take advantage of desirable properties of the respective gases. There is a conducting gas, an insulating gas, and a third gas that has low ionization energy resulting in a net increase in the number of electrons available to produce a current.

  17. Mathematical analysis for fractional diffusion equations: forward

    E-Print Network [OSTI]

    Boyer, Franck

    or dumping WasteGroundwater flow Base rock Underground storage Soil gapsmicro scale about 100m Field: macro-Diffusion equation Result of Field Test (Adams& Gelhar, 1992) t0 t1 t2 t3 t0 Pollution source Model Prediction Univ. #12;· Determination of contamination source t u = u + F We need detailed mathematical researches

  18. Diffusion in Flexible Pipes Susanne Brogaard Kristensen

    E-Print Network [OSTI]

    . . . . . . . . . . . . . . . . . . . . . 51 7.5.3 Carbon dioxide diffusion . . . . . . . . . . . . . . . . . 52 7.5.4 52Effect of C it may cause the outer sheath to burst. Also if large amounts of carbon dioxide, hydrogen sulfide . . . . . . . . . . . . . . . . . . . . . . . 39 1 . #12;7.3 Thermodynamic properties , . . . . . . . . . . . . . . . . . . . 45 7.4 First approach

  19. Forecasting Turbulent Modes with Nonparametric Diffusion Models

    E-Print Network [OSTI]

    Tyrus Berry; John Harlim

    2015-01-27T23:59:59.000Z

    This paper presents a nonparametric diffusion modeling approach for forecasting partially observed noisy turbulent modes. The proposed forecast model uses a basis of smooth functions (constructed with the diffusion maps algorithm) to represent probability densities, so that the forecast model becomes a linear map in this basis. We estimate this linear map by exploiting a previously established rigorous connection between the discrete time shift map and the semi-group solution associated to the backward Kolmogorov equation. In order to smooth the noisy data, we apply diffusion maps to a delay embedding of the noisy data, which also helps to account for the interactions between the observed and unobserved modes. We show that this delay embedding biases the geometry of the data in a way which extracts the most predictable component of the dynamics. The resulting model approximates the semigroup solutions of the generator of the underlying dynamics in the limit of large data and in the observation noise limit. We will show numerical examples on a wide-range of well-studied turbulent modes, including the Fourier modes of the energy conserving Truncated Burgers-Hopf (TBH) model, the Lorenz-96 model in weakly chaotic to fully turbulent regimes, and the barotropic modes of a quasi-geostrophic model with baroclinic instabilities. In these examples, forecasting skills of the nonparametric diffusion model are compared to a wide-range of stochastic parametric modeling approaches, which account for the nonlinear interactions between the observed and unobserved modes with white and colored noises.

  20. New Mexico Hydrogen Fuels Challenge Program Description The New...

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

    New Mexico Hydrogen Fuels Challenge Program Description The New Mexico Hydrogen Fuels Challenge is an event that provides a hands-on opportunity for middle school students (grades...

  1. Community College Institute (CCI) Program Description The Community...

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

    Community College Institute (CCI) Program Description The Community College Internship (CCI) program seeks to encourage community college students to enter technical careers...

  2. June 1998Program Description Windows and Daylighting Group

    E-Print Network [OSTI]

    June 1998Program Description THERM 2.0 Windows and Daylighting Group Building Technologies, and Dariush Arasteh Windows and Daylighting Group Building Technologies Department Environmental Energy

  3. approximation descriptions microscopiques: Topics by E-print...

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

    and Ecology Websites Summary: WASTE DESCRIPTION REDUCED, REUSED, RECYCLED OR CONSERVED POUNDS REDUCED, REUSED, RECYCLED OR CONSERVED IN 2000 WASTE TYPE POTENTIAL COSTS FOR...

  4. assurance program description dwpf: Topics by E-print Network

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

    workforce at LANL. DataImpacts LANL Funding: These Postdocs are paid from programmatic funding within 2 Program Description Queen's University Computer Technologies and...

  5. air program description: Topics by E-print Network

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

    workforce at LANL. DataImpacts LANL Funding: These Postdocs are paid from programmatic funding within 2 Program Description Queen's University Computer Technologies and...

  6. assurance program description: Topics by E-print Network

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

    workforce at LANL. DataImpacts LANL Funding: These Postdocs are paid from programmatic funding within 2 Program Description Queen's University Computer Technologies and...

  7. STEP Energy Coach and Technical Consultant Job Descriptions ...

    Energy Savers [EERE]

    Consultant Job Descriptions.pdf More Documents & Publications Technical Consultant RFP Tool Kit Framework: Small Town University Energy Program (STEP) Technical Consultant...

  8. From Abstract to Concrete Norms in Agent Institutions

    E-Print Network [OSTI]

    Dignum, Frank

    From Abstract to Concrete Norms in Agent Institutions Davide Grossi and Frank Dignum Utrecht accounts for how (abstract) norms can be incorporated in the (concrete) procedures constituting. This abstract is organized as follows. In Section 2 we make the problem we are focusing on concrete by means

  9. The Compositionality of Abstraction for Coloured Petri Nets

    E-Print Network [OSTI]

    Lakos, Charles

    The Compositionality of Abstraction for Coloured Petri Nets Charles Lakos, Electrical Engineering.Lakos@utas.edu.au Abstract: An earlier paper considered the appropriate properties for abstract net components in the Coloured Petri Net formalism. This paper extends that earlier work in refining some definitions

  10. ACOEL on CORAL A COmponent Requirement and Abstraction Language

    E-Print Network [OSTI]

    Leavens, Gary T.

    ACOEL on CORAL A COmponent Requirement and Abstraction Language An Extended Abstract Vugranam C. Sreedhar IBM TJ Watson Research Center Hawthorne, NY 10532 sreedhar@watson.ibm.com ABSTRACT CORAL is a language for specifying properties of ACOEL, a component-oriented extensional language. The design of CORAL

  11. Abstract interpretation from a denotational-semantics perspective

    E-Print Network [OSTI]

    Schmidt, David A.

    MFPS 2009 Abstract interpretation from a denotational-semantics perspective David A. Schmidt principles of abstract interpretation are explained in terms of Scott-Strachey-style denotational semantics-limit construction of a Scott-domain. Abstracted computation functions are defined in terms of an embedding

  12. The Impact of Distributed Programming Abstractions on Application Energy Consumption

    E-Print Network [OSTI]

    Tilevich, Eli

    The Impact of Distributed Programming Abstractions on Application Energy Consumption Young-Woo Kwon of their energy consumption patterns. By varying the abstractions with the rest of the functionality fixed, we measure and analyze the impact of distributed programming abstractions on application energy consumption

  13. AHTR Refueling Systems and Process Description

    SciTech Connect (OSTI)

    Varma, Venugopal Koikal [ORNL; Holcomb, David Eugene [ORNL; Bradley, Eric Craig [ORNL; Zaharia, Nathaniel M [ORNL; Cooper, Eliott J [ORNL

    2012-07-01T23:59:59.000Z

    The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt-cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy's Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The report, however, does include a description of the materials envisioned for the various components and the instrumentation necessary to control the refueling process. The report begins with an overview of the refueling strategy. Next a mechanical description of the AHTR fuel assemblies and core is provided. The reactor vessel upper assemblies are then described. Following this the refueling path structures and the refueling mechanisms and components are described. The sequence of operations necessary to fuel and defuel the reactor is then discussed. The report concludes with a discussion of the levels of maturity of the various SSCs to provide guidance for future technology developments. The conceptual design information presented in this report is very preliminary in nature. Significant uncertainty remains about several aspects of the process and even the radiation and mechanical performance of plate-type coated-particle fuel.

  14. AHTR Refueling Systems and Process Description

    SciTech Connect (OSTI)

    Varma, V.K.; Holcomb, D.E.; Bradley, E.C.; Zaharia, N.M.; Cooper, E.J.

    2012-07-15T23:59:59.000Z

    The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt–cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy’s Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published [1], and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The report, however, does include a description of the materials envisioned for the various components and the instrumentation necessary to control the refueling process. The report begins with an overview of the refueling strategy. Next a mechanical description of the AHTR fuel assemblies and core is provided. The reactor vessel upper assemblies are then described. Following this the refueling path structures and the refueling mechanisms and components are described. The sequence of operations necessary to fuel and defuel the reactor is then discussed. The report concludes with a discussion of the levels of maturity of the various SSCs to provide guidance for future technology developments. The conceptual design information presented in this report is very preliminary in nature. Significant uncertainty remains about several aspects of the process and even the radiation and mechanical performance of plate-type coated-particle fuel.

  15. Probing the brain’s white matter with diffusion MRI and a tissue dependent diffusion model 

    E-Print Network [OSTI]

    Piatkowski, Jakub Przemyslaw

    2014-06-27T23:59:59.000Z

    While diffusion MRI promises an insight into white matter microstructure in vivo, the axonal pathways that connect different brain regions together can only partially be segmented using current methods. Here we present ...

  16. Symplectic map description of Halley's comet dynamics

    E-Print Network [OSTI]

    G. Rollin; P. Haag; J. Lages

    2015-02-02T23:59:59.000Z

    The main features of 1P/Halley chaotic dynamics can be described by a two dimensional symplectic map. Using Mel'nikov integral we semi-analytically determine such a map for 1P/Halley taking into account gravitational interactions from the Sun and the eight planets. We determine the Solar system kick function ie the energy transfer to 1P/Halley along one passage through the Solar system. Our procedure allows to compute for each planet its contribution to the Solar system kick function which appears to be the sum of the Keplerian potential of the planet and of a rotating circular gravitational dipole potential due to the Sun movement around Solar system barycenter. We test the robustness of the symplectic Halley map by directly integrating Newton's equations over $\\sim 2.4\\cdot 10^4$ yr around Y2K and by reconstructing the Solar system kick function. Our results show that the Halley map with fixed parameters gives a reliable description of comet dynamics on time scales of $10^4$ yr while on a larger scales the parameters of the map are slowly changing due to slow oscillations of orbital momentum.

  17. A unifying description of dark energy

    E-Print Network [OSTI]

    Jérôme Gleyzes; David Langlois; Filippo Vernizzi

    2015-01-22T23:59:59.000Z

    We review and extend a novel approach that we introduced recently, to describe general dark energy or scalar-tensor models. Our approach relies on an ADM formulation based on the hypersurfaces where the underlying scalar field is uniform. The advantage of this approach is that it can describe in the same language and in a minimal way a vast number of existing models, such as quintessence models, $F(R)$ theories, scalar tensor theories, their Horndeski extensions and beyond. It also naturally includes Horava-Lifshitz theories. As summarized in this review, our approach provides a unified treatment of the linear cosmological perturbations about a FLRW universe, obtained by a systematic expansion of our general action up to quadratic order. This shows that the behaviour of these linear perturbations is generically characterized by five time-dependent functions. We derive the full equations of motion in the Newtonian gauge, and obtain in particular the equation of state for dark energy perturbations, in the Horndeski case, in terms of these functions. Our unifying description thus provides the simplest and most systematic way to confront theoretical models with current and future cosmological observations.

  18. Transmutation Fuel Campaign Description and Status

    SciTech Connect (OSTI)

    Jon Carmack; Kemal O. Pasamehmetoglu

    2008-01-01T23:59:59.000Z

    This report contains a technical summary package in response to a Level 2 milestone in the transmutation fuel campaign (TFC) management work-package calling for input to the Secretarial decision. At present, the form of the Secretarial decision package is not fully defined, and it is not clear exactly what will be required from the TFC as a final input. However, it is anticipated that a series oftechnical and programmatic documents will need to be provided in support of a wider encompassing document on GNEP technology development activities. The TFC technical leadership team provides this report as initial input to the secretarial decision package which is being developed by the Technical Integration Office (TIO) in support of Secretarial decision. This report contains a summary of the TFC execution plan with a work breakdown structure, highlevel schedule, major milestones, and summary description of critical activities in support of campaign objectives. Supporting documents referenced in this report but provided under separate cover include: • An updated review of the state-of-the art for transmutation fuel development activities considering national as well as international fuel research and development testing activities. • A definition of the Technology Readiness Level (TRL) used to systematically define and execute the transmutation fuel development activities.

  19. Ceramic corrosion/erosion project description

    SciTech Connect (OSTI)

    Nakaishi, C.V.; Carpenter, L.K.

    1981-02-01T23:59:59.000Z

    As a part of the United States Department of Energy's High Temperature Turbine Technology Program, the Morgantown Energy Technology Center is participating in a Ceramics Corrosion/Erosion Materials Study. Objective is to create a technology base for ceramic materials which could be used by stationary gas power turbines operating with a high-temperature, coal-derived, low-Btu gas products of combustion environment. Two facilities are designed and installed to burn a varying low-Btu coal-derived gas in a controlled manner. This report contains the objectives and testing philosophy as well as the operating, specimen handling, and emergency procedures for the facilities. The facilities were checked out in August/September 1980. Testing is scheduled to begin in late 1980 with completion of 1000 hours of ceramic materials exposure to be completed by early 1981. Most of the enclosed is an update of two METC Information Releases (IR), i.e., IR 442 (1979) Test Plan for Ceramic Corrosion/Erosion Project, and IR 817 (1980) Ceramic Corrosion/Erosion Project Description.

  20. Theoretical descriptions of neutron emission in fission

    SciTech Connect (OSTI)

    Madland, D.G.

    1990-01-01T23:59:59.000Z

    Brief descriptions are given of the observables in neutron emission in fission together with early theoretical representations of two of these observables, namely, the prompt fission neutron spectrum N(E) and the average prompt neutron multiplicity {bar {nu}}{sub p}. This is followed by summaries, together with examples, of modern approaches to the calculation of these two quantities. Here, emphasis is placed upon the predictability and accuracy of the new approaches. In particular, the dependencies of N(E) and {bar {nu}}{sub p} upon the fissioning nucleus and its excitation energy are discussed. Then, recent work in multiple-chance fission and other recent work involving new measurements are presented and discussed. Following this, some properties of fission fragments are mentioned that must be better known and better understood in order to calculate N(E) and {bar {nu}}{sub p} with higher accuracy than is currently possible. In conclusion, some measurements are recommended for the purpose of benchmarking simultaneous calculations of neutron emission and gamma emission in fission. 32 refs., 26 figs.

  1. A Diffusion Study of the Federally Mandated School Wellness Policy

    E-Print Network [OSTI]

    Harriger, Dinah Jane

    2012-10-19T23:59:59.000Z

    Using Diffusion of Innovations (DOI) in Organizations as a theoretical framework, this dissertation analyzed the diffusion process of the federally mandated School Wellness Policy (SWP) in three separate studies. Beginning with a content analysis...

  2. The effects of double-diffusion on a baroclinic vortex

    E-Print Network [OSTI]

    Smith, Wendy Marie

    1987-01-01T23:59:59.000Z

    Laboratory experiments were performed to study the combined effects of double-diffusion and rotation on an oceanic intrusion. Intrusions are driven across density-compensated fronts by the divergence of the double-diffusive ...

  3. Diapycnal advection by double diffusion and turbulence in the ocean

    E-Print Network [OSTI]

    St. Laurent, Louis C

    1999-01-01T23:59:59.000Z

    Observations of diapycnal mixing rates are examined and related to diapycnal advection for both double-diffusive and turbulent regimes. The role of double-diffusive mixing at the site of the North Atlantic Tracer Release ...

  4. Moisture Diffusion in Asphalt Binders and Fine Aggregate Mixtures

    E-Print Network [OSTI]

    Vasconcelos, Kamilla L.

    2011-08-08T23:59:59.000Z

    cost in highway maintenance and vehicle operations. One key mechanism of how moisture reaches the asphalt-aggregate interface is by its permeation or diffusion through the asphalt binder or mastic. Different techniques are available for diffusion...

  5. Modelling of unidirectional thermal diffusers in shallow water

    E-Print Network [OSTI]

    Lee, Joseph Hun-Wei

    1977-01-01T23:59:59.000Z

    This study is an experimental and theoretical investigation of the temperature field and velocity field induced by a unidirectional thermal diffuser in shallow water. A multiport thermal diffuser is essentially a pipe laid ...

  6. Spatial curvature effects on molecular transport by diffusion

    E-Print Network [OSTI]

    J. Balakrishnan

    2003-08-25T23:59:59.000Z

    For a substance diffusing on a curved surface, we obtain an explicit relation valid for very small values of the time, between the local concentration, the diffusion coefficient, the intrinsic spatial curvature and the time. We recover the known solution of Fick's law of diffusion in the flat space limit. In the biological context, this result would be useful in understanding the variations in the diffusion rates of integral proteins and other molecules on membranes.

  7. Investigation of porous media structures using NMR restricted diffusion measurements 

    E-Print Network [OSTI]

    Miao, Peizhi

    1993-01-01T23:59:59.000Z

    be observed in the literature. Woessner measured the apparent diffusion coefficients for three systems: water in silica suspensions; water in a sandstone core; and benzene- rubber. He employed a constant field gradient spin-echo technique and observed.... For the application of NMR technique to extract pore structure information from restricted diffusion measurements, we will follow a two-step scheme, 1) determine the distribution of apparent diffusion coefficient from NMR measurement of fluid diffusion in porous...

  8. LETTRES A LA RDACTION DIFFUSION LASTIQUE DES PHOTONS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    spectrometrie par scintillation 6choue, 6 cause des empilements de photons diffus6s de basse énergie. FIG. 1

  9. EFFECT OF BROWNIAN AND THERMOPHORETIC DIFFUSIONS OF NANOPARTICLES ON

    E-Print Network [OSTI]

    Zhang, Yuwen

    EFFECT OF BROWNIAN AND THERMOPHORETIC DIFFUSIONS OF NANOPARTICLES ON NONEQUILIBRIUM HEAT CONDUCTION of Brownian and thermophoretic diffusions on nonequilibrium heat conduction in a nanofluid layer with periodic, and period of the surface heat flux. Effects of Brownian and thermophoretic diffusions of nanoparticles

  10. Technical Note Correction of Eddy-Current Distortions in Diffusion

    E-Print Network [OSTI]

    Technical Note Correction of Eddy-Current Distortions in Diffusion Tensor Images Using the Known,2 Purpose: To correct eddy-current artifacts in diffusion ten- sor (DT) images without the need to obtain- tortions caused by eddy currents induced by large diffusion gradients. We propose a new postacquisition

  11. Convergence Speed of GARCH Option Price to Diffusion Option Price

    E-Print Network [OSTI]

    Wang, Yazhen

    Convergence Speed of GARCH Option Price to Diffusion Option Price Jin-Chuan Duan National constructed GARCH model will weakly converge to a bi- variate diffusion. Naturally the European option price under the GARCH model will also converge to its bivariate diffusion counterpart. This paper investigates

  12. Nonlinear analysis of a reaction-diffusion system: Amplitude equations

    SciTech Connect (OSTI)

    Zemskov, E. P., E-mail: zemskov@ccas.ru [Russian Academy of Sciences, Dorodnicyn Computing Center (Russian Federation)

    2012-10-15T23:59:59.000Z

    A reaction-diffusion system with a nonlinear diffusion term is considered. Based on nonlinear analysis, the amplitude equations are obtained in the cases of the Hopf and Turing instabilities in the system. Turing pattern-forming regions in the parameter space are determined for supercritical and subcritical instabilities in a two-component reaction-diffusion system.

  13. Modelling precipitation of niobium carbide in austenite: multicomponent diffusion, capillarity,

    E-Print Network [OSTI]

    Cambridge, University of

    Modelling precipitation of niobium carbide in austenite: multicomponent diffusion, capillarity, and coarsening N. Fujita and H. K. D. H. Bhadeshia The growth of niobium carbide in austenite involves the diffusion of both niobium and carbon. These elements diffuse at very different rates. A model is presented

  14. Chapter 1 Introduction 1.1 Why Diffusion in Polymers

    E-Print Network [OSTI]

    Goddard III, William A.

    I - 1 Chapter 1 Introduction 1.1 Why Diffusion in Polymers Various industrial applications of polymers involve diffusion of gases through polymersi . Membrane separation of gases in the gas and oil involve impeding the diffusion of gases through thin polymer films, commonly used as packaging food

  15. A Diffusion Model in Population Genetics with Mutation and Dynamic

    E-Print Network [OSTI]

    O'Leary, Michael

    A Diffusion Model in Population Genetics with Mutation and Dynamic Fitness Mike O'Leary Department of Mathematics Towson University May 24, 2008 Mike O'Leary (Towson University) A Diffusion Model in Genetics May Miller, Georgetown University Mike O'Leary (Towson University) A Diffusion Model in Genetics May 24, 2008

  16. Inventory List Item Number Brief Description Price Preferred Vendor

    E-Print Network [OSTI]

    Inventory List UT Austin Item Number Brief Description Price Preferred Vendor L0146 Adapter, Glass w/Screw Top, Amber, 4 dram $0.56 VWRSC 4/21/14 Page - 1 #12;Inventory List UT Austin Item Number;Inventory List UT Austin Item Number Brief Description Price Preferred Vendor S0027 CD, Recordable $0

  17. Adapting Optimization Techniques to Description Logics with Concrete Domains

    E-Print Network [OSTI]

    Haarslev, Volker

    Adapting Optimization Techniques to Description Logics with Concrete Domains Anni-Yasmin Turhan backtracking and model merging can be adapted to description logics with concrete domains. We propose al) a new requirement for concrete domains in order to enable dependency directed backtracking for all clash

  18. Adapting Optimization Techniques to Description Logics with Concrete Domains

    E-Print Network [OSTI]

    Haarslev, Volker

    Adapting Optimization Techniques to Description Logics with Concrete Domains Anni­Yasmin Turhan backtracking and model merging can be adapted to description logics with concrete domains. We propose al) a new requirement for concrete domains in order to enable dependency directed backtracking for all clash

  19. Rising Leader Program (RLP) Mentor Application Program Description

    E-Print Network [OSTI]

    Cantlon, Jessica F.

    1 Rising Leader Program (RLP) Mentor Application Program Description The Rising Leader Program leaders. Rising Leader Program Mentor Job Description Establishing a mentoring relationship. Upperclassmen will serve as mentors to a small group of freshmen. The Mentors will lead the freshmen in various

  20. A paradox in the global description of the multiverse

    E-Print Network [OSTI]

    Raphael Bousso; Ben Freivogel

    2006-10-11T23:59:59.000Z

    We use an argument by Page to exhibit a paradox in the global description of the multiverse: the overwhelming majority of observers arise from quantum fluctuations and not by conventional evolution. Unless we are extremely atypical, this contradicts observation. The paradox does not arise in the local description of the multiverse, but similar arguments yield interesting constraints on the maximum lifetime of metastable vacua.

  1. Database Description with SDM: A Semantic Database Model

    E-Print Network [OSTI]

    McLeod, Dennis

    Database Description with SDM: A Semantic Database Model MICHAEL HAMMER Massachusetts Institute of Technology and DENNIS McLEOD University of Southern California SDM is a high-level semantics-based database description and structuring formalism (database model) for databases. This database model is designed

  2. UO{sub 3} plant turnover - facility description document

    SciTech Connect (OSTI)

    Clapp, D.A.

    1995-01-01T23:59:59.000Z

    This document was developed to provide a facility description for those portions of the UO{sub 3} Facility being transferred to Bechtel Hanford Company, Inc. (BHI) following completion of facility deactivation. The facility and deactivated state condition description is intended only to serve as an overview of the plant as it is being transferred to BHI.

  3. Description Logics as Ontology Languages for the Semantic Web

    E-Print Network [OSTI]

    Baader, Franz

    Description Logics as Ontology Languages for the Semantic Web Franz Baader 1 , Ian Horrocks 2. The vision of a Semantic Web has recently drawn consider- able attention, both from academia and industry. Description logics are often named as one of the tools that can support the Semantic Web and thus help to make

  4. 2012 Graduate School of Science Current Course Descriptions Common Courses

    E-Print Network [OSTI]

    Sano, Masaki

    , and social issues (ELSI) as well as cases of bioethics, climate change and nuclear power. https2012 Graduate School of Science Current Course Descriptions Common Courses Science Communication Courses Course code Course title Instructor Course Description 35620-2001 Theory of Science Communication

  5. Job Title: Research Associate Position #: 016161.0001 Job Description

    E-Print Network [OSTI]

    Job Title: Research Associate Position #: 016161.0001 Job Description: Research associate sought, is helpful, because much of this job requires communication with veterinarians around the country. Applicants://www.cvmbs.colostate.edu/ns/departments/mip/ Job Opportunities for complete job description · CSU is an EO/EA/AA employer · Colorado State

  6. PARTI: JOB DESCRIPTION Weighted Job Questionnaire(WJQ) Custom

    E-Print Network [OSTI]

    Kavanagh, Karen L.

    PARTI: JOB DESCRIPTION Weighted Job Questionnaire(WJQ) Custom Department Name: SFU Document WEIGHTEDJOBQUESTIONNAIRE(WJQ)CUSTO PARTI: JOB DESCRIPTION 1. POSITION IDENTIFICATION Department Position Title: Customer at all times. Provides cost estimates for basic jobs and produces production reports using the Print

  7. Shippingport Spent Fuel Canister System Description

    SciTech Connect (OSTI)

    JOHNSON, D.M.

    2000-03-27T23:59:59.000Z

    In 1978 and 1979, a total of 72 blanket fuel assemblies (BFAs), irradiated during the operating cycles of the Shippingport Atomic Power Station's Pressurized Water Reactor (PWR) Core 2 from April 1965 to February 1974, were transferred to the Hanford Site and stored in underwater storage racks in Cell 2R at the 221-T Canyon (T-Plant). The initial objective was to recover the produced plutonium in the BFAs, but this never occurred and the fuel assemblies have remained within the water storage pool to the present time. The Shippingport Spent Fuel Canister (SSFC) is a confinement system that provides safe transport functions (in conjunction with the TN-WHC cask) and storage for the BFAs at the Canister Storage Building (CSB). The current plan is for these BFAs to be retrieved from wet storage and loaded into SSFCs for dry storage. The sealed SSFCs containing BFAs will be vacuum dried, internally backfilled with helium, and leak tested to provide suitable confinement for the BFAs during transport and storage. Following completion of the drying and inerting process, the SSFCs are to be delivered to the CSB for closure welding and long-term interim storage. The CSB will provide safe handling and dry storage for the SSFCs containing the BFAs. The purpose of this document is to describe the SSFC system and interface equipment, including the technical basis for the system, design descriptions, and operations requirements. It is intended that this document will be periodically updated as more equipment design and performance specification information becomes available.

  8. DOE-RL Integrated Safety Management System Description

    SciTech Connect (OSTI)

    SHOOP, D.S.

    2000-09-01T23:59:59.000Z

    The purpose of this Integrated Safety Management System Description (ISMSD) is to describe the U.S. Department of Energy (DOE), Richland Operations Office (RL) ISMS as implemented through the RL Integrated Management System (RIMS). This ISMSD does not impose additional requirements but rather provides an overview describing how various parts of the ISMS fit together. Specific requirements for each of the core functions and guiding principles are established in other implementing processes, procedures, and program descriptions that comprise RIMS. RL is organized to conduct work through operating contracts; therefore, it is extremely difficult to provide an adequate ISMS description that only addresses RL functions. Of necessity, this ISMSD contains some information on contractor processes and procedures which then require RL approval or oversight. This ISMSD does not purport to contain a full description of the contractors' ISM System Descriptions.

  9. Transverse transport of solutes between co-flowing pressure-driven streams for microfluidic studies of diffusion/reaction processes

    E-Print Network [OSTI]

    Jean-Baptiste Salmon; Armand Ajdari

    2007-02-01T23:59:59.000Z

    We consider a situation commonly encountered in microfluidics: two streams of miscible liquids are brought at a junction to flow side by side within a microchannel, allowing solutes to diffuse from one stream to the other and possibly react. We focus on two model problems: (i) the transverse transport of a single solute from a stream into the adjacent one, (ii) the transport of the product of a diffusion-controlled chemical reaction between solutes originating from the two streams. Our description is made general through a non-dimensionalized formulation that incorporates both the parabolic Poiseuille velocity profile along the channel and thermal diffusion in the transverse direction. Numerical analysis over a wide range of the streamwise coordinate $x$ reveal different regimes. Close to the top and the bottom walls of the microchannel, the extent of the diffusive zone follows three distinct power law regimes as $x$ is increased, characterized respectively by the exponents 1/2, 1/3 and 1/2. Simple analytical arguments are proposed to account for these results.

  10. Methodology and apparatus for diffuse photon imaging

    DOE Patents [OSTI]

    Feng, S.C.; Zeng, F.; Zhao, H.L.

    1997-12-09T23:59:59.000Z

    Non-invasive near infrared optical medical imaging devices for both hematoma detection in the brain and early tumor detection in the breast is achieved using image reconstruction which allows a mapping of the position dependent contrast diffusive propagation constants, which are related to the optical absorption coefficient and scattering coefficient in the tissue, at near infrared wavelengths. Spatial resolutions in the range of 5 mm for adult brain sizes and breast sizes can be achieved. The image reconstruction utilizes WKB approximation on most probable diffusion paths which has as lowest order approximation the straight line-of-sight between the plurality of sources and the plurality of detectors. The WKB approximation yields a set of linear equations in which the contrast optical absorption coefficients are the unknowns and for which signals can be generated to produce a pixel map of the contrast optical resolution of the scanned tissue. 58 figs.

  11. Methodology and apparatus for diffuse photon mimaging

    DOE Patents [OSTI]

    Feng, Shechao C. (Los Angeles, CA); Zeng, Fanan (Los Angeles, CA); Zhao, Hui-Lin (Los Angeles, CA)

    1997-12-09T23:59:59.000Z

    Non-invasive near infrared optical medical imaging devices for both hematoma detection in the brain and early tumor detection in the breast is achieved using image reconstruction which allows a mapping of the position dependent contrast diffusive propagation constants, which are related to the optical absorption coefficient and scattering coefficient in the tissue, at near infrared wavelengths. Spatial resolutions in the range of 5 mm for adult brain sizes and breast sizes can be achieved. The image reconstruction utilizes WKB approximation on most probable diffusion paths which has as lowest order approximation the straight line-of-sight between the plurality of sources and the plurality of detectors. The WKB approximation yields a set of linear equations in which the contrast optical absorption coefficients are the unknowns and for which signals can be generated to produce a pixel map of the contrast optical resolution of the scanned tissue.

  12. Diffusion barriers in modified air brazes

    DOE Patents [OSTI]

    Weil, Kenneth Scott; Hardy, John S; Kim, Jin Yong; Choi, Jung-Pyung

    2013-04-23T23:59:59.000Z

    A method for joining two ceramic parts, or a ceramic part and a metal part, and the joint formed thereby. The method provides two or more parts, a braze consisting of a mixture of copper oxide and silver, a diffusion barrier, and then heats the braze for a time and at a temperature sufficient to form the braze into a bond holding the two or more parts together. The diffusion barrier is an oxidizable metal that forms either a homogeneous component of the braze, a heterogeneous component of the braze, a separate layer bordering the braze, or combinations thereof. The oxidizable metal is selected from the group Al, Mg, Cr, Si, Ni, Co, Mn, Ti, Zr, Hf, Pt, Pd, Au, lanthanides, and combinations thereof.

  13. Diffusive Shock Acceleration: the Fermi Mechanism

    E-Print Network [OSTI]

    Matthew G. Baring

    1997-11-16T23:59:59.000Z

    The mechanism of diffusive Fermi acceleration at collisionless plasma shock waves is widely invoked in astrophysics to explain the appearance of non-thermal particle populations in a variety of environments, including sites of cosmic ray production, and is observed to operate at several sites in the heliosphere. This review outlines the principal results from the theory of diffusive shock acceleration, focusing first on how it produces power-law distributions in test-particle regimes, where the shock dynamics are dominated by the thermal populations that provide the seed particles for the acceleration process. Then the importance of non-linear modifications to the shock hydrodynamics by the accelerated particles is addressed, emphasizing how these subsequently influence non-thermal spectral formation.

  14. State protection under collective damping and diffusion

    SciTech Connect (OSTI)

    Ponte, M. A. de [Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, Caixa Postal 369, 13560-590 Sao Carlos, SP (Brazil); Departamento de Fisica, Universidade Regional do Cariri, 63010-970 Juazeiro do Norte, CE (Brazil); Mizrahi, S. S. [Departamento de Fisica, Universidade Federal de Sao Carlos, 13565-905 Sao Carlos, SP (Brazil); Moussa, M. H. Y. [Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, Caixa Postal 369, 13560-590 Sao Carlos, SP (Brazil)

    2011-07-15T23:59:59.000Z

    In this paper we provide a recipe for state protection in a network of oscillators under collective damping and diffusion. Our strategy is to manipulate the network topology, i.e., the way the oscillators are coupled together, the strength of their couplings, and their natural frequencies, in order to create a relaxation-diffusion-free channel. This protected channel defines a decoherence-free subspace (DFS) for nonzero-temperature reservoirs. Our development also furnishes an alternative approach to build up DFSs that offers two advantages over the conventional method: it enables the derivation of all the network-protected states at once, and also reveals, through the network normal modes, the mechanism behind the emergence of these protected domains.

  15. Diffusion limited reactions in confined environments

    E-Print Network [OSTI]

    Jeremy D. Schmit; Ercan Kamber; Jané Kondev

    2007-11-19T23:59:59.000Z

    We study the effect of confinement on diffusion limited bimolecular reactions within a lattice model where a small number of reactants diffuse amongst a much larger number of inert particles. When the number of inert particles is held constant the rate of the reaction is slow for small reaction volumes due to limited mobility from crowding, and for large reaction volumes due to the reduced concentration of the reactants. The reaction rate proceeds fastest at an intermediate confinement corresponding to volume fraction near 1/2 and 1/3 in two and three dimensions, respectively. We generalize the model to off-lattice systems with hydrodynamic coupling and predict that the optimal reaction rate for monodisperse colloidal systems occurs when the volume fraction is ~0.18. Finally, we discuss the application of our model to bimolecular reactions inside cells as well as the dynamics of confined polymers.

  16. Distributed Energy Resources Market Diffusion Model

    SciTech Connect (OSTI)

    Maribu, Karl Magnus; Firestone, Ryan; Marnay, Chris; Siddiqui,Afzal S.

    2006-06-16T23:59:59.000Z

    Distributed generation (DG) technologies, such as gas-fired reciprocating engines and microturbines, have been found to be economically beneficial in meeting commercial-sector electrical, heating, and cooling loads. Even though the electric-only efficiency of DG is lower than that offered by traditional central stations, combined heat and power (CHP) applications using recovered heat can make the overall system energy efficiency of distributed energy resources (DER) greater. From a policy perspective, however, it would be useful to have good estimates of penetration rates of DER under various economic and regulatory scenarios. In order to examine the extent to which DER systems may be adopted at a national level, we model the diffusion of DER in the US commercial building sector under different technical research and technology outreach scenarios. In this context, technology market diffusion is assumed to depend on the system's economic attractiveness and the developer's knowledge about the technology. The latter can be spread both by word-of-mouth and by public outreach programs. To account for regional differences in energy markets and climates, as well as the economic potential for different building types, optimal DER systems are found for several building types and regions. Technology diffusion is then predicted via two scenarios: a baseline scenario and a program scenario, in which more research improves DER performance and stronger technology outreach programs increase DER knowledge. The results depict a large and diverse market where both optimal installed capacity and profitability vary significantly across regions and building types. According to the technology diffusion model, the West region will take the lead in DER installations mainly due to high electricity prices, followed by a later adoption in the Northeast and Midwest regions. Since the DER market is in an early stage, both technology research and outreach programs have the potential to increase DER adoption, and thus, shift building energy consumption to a more efficient alternative.

  17. Glass Membrane For Controlled Diffusion Of Gases

    DOE Patents [OSTI]

    Shelby, James E. (Alfred Station, NY); Kenyon, Brian E. (Pittsburgh, PA)

    2001-05-15T23:59:59.000Z

    A glass structure for controlled permeability of gases includes a glass vessel. The glass vessel has walls and a hollow center for receiving a gas. The glass vessel contains a metal oxide dopant formed with at least one metal selected from the group consisting of transition metals and rare earth metals for controlling diffusion of the gas through the walls of the glass vessel. The vessel releases the gas through its walls upon exposure to a radiation source.

  18. Collective motion in quantum diffusive environment

    E-Print Network [OSTI]

    V. M. Kolomietz; S. Å berg; S. V. Radionov

    2007-06-16T23:59:59.000Z

    The general problem of dissipation in macroscopic large-amplitude collective motion and its relation to energy diffusion of intrinsic degrees of freedom of a nucleus is studied. By applying the cranking approach to the nuclear many-body system, a set of coupled dynamical equations for the collective classical variable and the quantum mechanical occupancies of the intrinsic nuclear states is derived. Different dynamical regimes of the intrinsic nuclear motion and its consequences on time properties of collective dissipation are discussed.

  19. Uranium enrichment export control guide: Gaseous diffusion

    SciTech Connect (OSTI)

    Not Available

    1989-09-01T23:59:59.000Z

    This document was prepared to serve as a guide for export control officials in their interpretation, understanding, and implementation of export laws that relate to the Zangger International Trigger List for gaseous diffusion uranium enrichment process components, equipment, and materials. Particular emphasis is focused on items that are especially designed or prepared since export controls are required for these by States that are party to the International Nuclear Nonproliferation Treaty.

  20. Metal Nitride Diffusion Barriers for Copper Interconnects

    E-Print Network [OSTI]

    Araujo, Roy A.

    2010-01-14T23:59:59.000Z

    nanocrystalline TiN film enhances grain boundary sliding and grain boundary diffusion related creep phenomena, and the ductility of the coatings is also improved. On the other hand, compositional designed TiN based alloys, such as cubic-phase Ti1-xAlxN thin... Nitrides ...................... 26 2.3 Composition and Structures of TiN, TaN and HfN ................. 33 2.4 Nitride Formation, Electronegativity, Atomic Radius and Bonding...

  1. Gas mixture for diffuse-discharge switch

    DOE Patents [OSTI]

    Christophorou, L.G.; Carter, J.G.; Hunter, S.R.

    1982-08-31T23:59:59.000Z

    Gaseous medium in a diffuse-discharge switch of a high-energy pulse generator is formed of argon combined with a compound selected from the group consisting of CF/sub 4/, C/sub 2/F/sub 6/, C/sub 3/F/sub 8/, n-C/sub 4/F/sub 10/, WF/sub 6/, (CF/sub 3/)/sub 2/S and (CF/sub 3/)/sub 2/O.

  2. Diffusion method of seperating gaseous mixtures

    DOE Patents [OSTI]

    Pontius, Rex B. (Rochester, NY)

    1976-01-01T23:59:59.000Z

    A method of effecting a relatively large change in the relative concentrations of the components of a gaseous mixture by diffusion which comprises separating the mixture into heavier and lighter portions according to major fraction mass recycle procedure, further separating the heavier portions into still heavier subportions according to a major fraction mass recycle procedure, and further separating the lighter portions into still lighter subportions according to a major fraction equilibrium recycle procedure.

  3. Interactive Volume Rendering of Diffusion Tensor Data

    SciTech Connect (OSTI)

    Hlawitschka, Mario; Weber, Gunther; Anwander, Alfred; Carmichael, Owen; Hamann, Bernd; Scheuermann, Gerik

    2007-03-30T23:59:59.000Z

    As 3D volumetric images of the human body become an increasingly crucial source of information for the diagnosis and treatment of a broad variety of medical conditions, advanced techniques that allow clinicians to efficiently and clearly visualize volumetric images become increasingly important. Interaction has proven to be a key concept in analysis of medical images because static images of 3D data are prone to artifacts and misunderstanding of depth. Furthermore, fading out clinically irrelevant aspects of the image while preserving contextual anatomical landmarks helps medical doctors to focus on important parts of the images without becoming disoriented. Our goal was to develop a tool that unifies interactive manipulation and context preserving visualization of medical images with a special focus on diffusion tensor imaging (DTI) data. At each image voxel, DTI provides a 3 x 3 tensor whose entries represent the 3D statistical properties of water diffusion locally. Water motion that is preferential to specific spatial directions suggests structural organization of the underlying biological tissue; in particular, in the human brain, the naturally occuring diffusion of water in the axon portion of neurons is predominantly anisotropic along the longitudinal direction of the elongated, fiber-like axons [MMM+02]. This property has made DTI an emerging source of information about the structural integrity of axons and axonal connectivity between brain regions, both of which are thought to be disrupted in a broad range of medical disorders including multiple sclerosis, cerebrovascular disease, and autism [Mos02, FCI+01, JLH+99, BGKM+04, BJB+03].

  4. Goldschmidt Conference Abstracts 2009 A437 Archaeometric evidence of trade

    E-Print Network [OSTI]

    Sparks, Donald L.

    Goldschmidt Conference Abstracts 2009 A437 Archaeometric evidence of trade of leucite Roman Volcanic province, Italy), a fact that implies an specific and important trade way of heavy

  5. asms conference abstract: Topics by E-print Network

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

    coastal seas Mathematics Websites Summary: Extended abstract to 10th International conference of estuaries and coastal seas October 7-11, 2000, the marine part of the Scheldt...

  6. abstract date structures: Topics by E-print Network

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

    specified, abstracts, and descriptors (subject terms); choose Title from the drop-down search menu to restrict your articles by Kenneth J. Carpenter, click , enter Carpenter K in...

  7. abstract proceedings signal: Topics by E-print Network

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

    can be used to describe biological signalling networks. As for any language, this process is error prone. Thus Feret, Jrme 4 Abstract Wireless indoor localization...

  8. Abstract Domains of Affine Relations MATT ELDER, University of Wisconsin

    E-Print Network [OSTI]

    Reps, Thomas W.

    modulo 2w, for some machine-integer width w). We show that the abstract domains of M¨uller-Olm/Seidl (MOS

  9. Molecular biology of signal transduction in plants. Abstracts

    SciTech Connect (OSTI)

    Not Available

    1991-12-31T23:59:59.000Z

    This volume contains abstracts of oral presentations and poster sessions of the 1991 Cold Springs Harbor Meeting entitled Molecular Biology of Signal Transduction in Plants.

  10. Abstract: Design and Demonstration of an Advanced Agricultural...

    Energy Savers [EERE]

    of an Advanced Agricultural Feedstock Supply System for Lignocellulosic Bioenergy Production Abstract: Design and Demonstration of an Advanced Agricultural Feedstock Supply...

  11. Multi-unit Auctions with Unknown Supply [Extended Abstract

    E-Print Network [OSTI]

    Saberi, Amin

    Multi-unit Auctions with Unknown Supply [Extended Abstract] Mohammad Mahdian Microsoft Research Redmond, WA, USA mahdian@microsoft.com Amin Saberi Stanford University Stanford, CA, USA saberi

  12. 2nd Annual DOE-ERSP PI Meeting: Abstracts

    E-Print Network [OSTI]

    Hazen, Terry C.

    2007-01-01T23:59:59.000Z

    involving the biological removal of uranium from groundwaterAbstracts Sustained Removal of Uranium from Contaminatedfor long-term removal of uranium from the groundwater. As

  13. automatic modular abstractions: Topics by E-print Network

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

    Websites Summary: We propose a method for automatically generating abstract transformers for static analysis permits the analysis of loops and recursive functions. Our...

  14. 7th international symposium on photosynthetic prokaryotes. Abstracts

    SciTech Connect (OSTI)

    Fuller, R.C.

    1991-12-31T23:59:59.000Z

    This book contains the abstracts of all the presentations made either in oral or poster form, at the VII International Symposium on Photosynthetic Prokaryotes.

  15. Reliable and Efficient Programming Abstractions for Wireless Sensor Networks

    E-Print Network [OSTI]

    Kothari, Nupur; Gummadi, Ramakrishna; Millstein, Todd; Govindan, Ramesh

    2007-01-01T23:59:59.000Z

    Macro-programming wireless sensor networks using Kairos. InAbstractions for Wireless Sensor Networks Nupur Kothari ?Keywords Wireless Sensor Networks, Macroprogramming, En-

  16. Selected Translated Abstracts of Chinese-Language Climate Change Publications

    SciTech Connect (OSTI)

    Cushman, R.M.; Burtis, M.D.

    1999-05-01T23:59:59.000Z

    This report contains English-translated abstracts of important Chinese-language literature concerning global climate change for the years 1995-1998. This body of literature includes the topics of adaptation, ancient climate change, climate variation, the East Asia monsoon, historical climate change, impacts, modeling, and radiation and trace-gas emissions. In addition to the biological citations and abstracts translated into English, this report presents the original citations and abstracts in Chinese. Author and title indexes are included to assist the reader in locating abstracts of particular interest.

  17. abstraction reaction efficiencies: Topics by E-print Network

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

    depend on the molecular size. The ratio becomes closer Okamoto, Koichi 22 Merging DBMs Efficiently Extended Abstract Alexandre David1 Computer Technologies and Information...

  18. abstract symbolic semantics: Topics by E-print Network

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

    Semantics Gregory Grefenstette Abstract Quantified self, life logging, digital eyeglasses to induce personal semantic dimensions to sift data and find what is meaningful to...

  19. aluminum tolerance abstract: Topics by E-print Network

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

    thermique de lchantillon. Abstract. 2014 Investigating (001) and (011) oriented monocrystalline thin foils of Cu2O in a conven-tional electron microscope enabled us to...

  20. alloy particles abstract: Topics by E-print Network

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

    thermique de lchantillon. Abstract. 2014 Investigating (001) and (011) oriented monocrystalline thin foils of Cu2O in a conven-tional electron microscope enabled us to...