Sample records for assessment medium discussion

  1. assessing short medium: Topics by E-print Network

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

    W. 66 The Local Interstellar Medium Astrophysics (arXiv) Summary: The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general...

  2. Market Assessment of Biomass Gasification and Combustion Technology for Small- and Medium-Scale Applications

    SciTech Connect (OSTI)

    Peterson, D.; Haase, S.

    2009-07-01T23:59:59.000Z

    This report provides a market assessment of gasification and direct combustion technologies that use wood and agricultural resources to generate heat, power, or combined heat and power (CHP) for small- to medium-scale applications. It contains a brief overview of wood and agricultural resources in the U.S.; a description and discussion of gasification and combustion conversion technologies that utilize solid biomass to generate heat, power, and CHP; an assessment of the commercial status of gasification and combustion technologies; a summary of gasification and combustion system economics; a discussion of the market potential for small- to medium-scale gasification and combustion systems; and an inventory of direct combustion system suppliers and gasification technology companies. The report indicates that while direct combustion and close-coupled gasification boiler systems used to generate heat, power, or CHP are commercially available from a number of manufacturers, two-stage gasification systems are largely in development, with a number of technologies currently in demonstration. The report also cites the need for a searchable, comprehensive database of operating combustion and gasification systems that generate heat, power, or CHP built in the U.S., as well as a national assessment of the market potential for the systems.

  3. Low/medium-Btu coal-gasification assessment program for specific sites of two New York utilities

    SciTech Connect (OSTI)

    Not Available

    1980-12-01T23:59:59.000Z

    The scope of this study is to investigate the technical and economic aspects of coal gasification to supply low- or medium-Btu gas to the two power plant boilers selected for study. This includes the following major studies (and others described in the text): investigate coals from different regions of the country, select a coal based on its availability, mode of transportation and delivered cost to each power plant site; investigate the effects of burning low- and medium-Btu gas in the selected power plant boilers based on efficiency, rating and cost of modifications and make recommendations for each; and review the technical feasibility of converting the power plant boilers to coal-derived gas. The following two coal gasification processes have been used as the basis for this Study: the Combustion Engineering coal gasification process produces a low-Btu gas at approximately 100 Btu/scf at near atmospheric pressure; and the Texaco coal gasification process produces a medium-Btu gas at 292 Btu/scf at 800 psig. The engineering design and economics of both plants are described. Both plants meet the federal, state, and local environmental requirements for air quality, wastewater, liquid disposal, and ground level disposal of byproduct solids. All of the synthetic gas alternatives result in bus bar cost savings on a yearly basis within a few years of start-up because the cost of gas is assumed to escalate at a lower rate than that of fuel oil, approximately 4 to 5%.

  4. Assessing the Battery Cost at Which Plug-In Hybrid Medium-Duty Parcel Delivery Vehicles Become Cost-Effective

    SciTech Connect (OSTI)

    Ramroth, L. A.; Gonder, J. D.; Brooker, A. D.

    2013-04-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL) validated diesel-conventional and diesel-hybrid medium-duty parcel delivery vehicle models to evaluate petroleum reductions and cost implications of hybrid and plug-in hybrid diesel variants. The hybrid and plug-in hybrid variants are run on a field data-derived design matrix to analyze the effect of drive cycle, distance, engine downsizing, battery replacements, and battery energy on fuel consumption and lifetime cost. For an array of diesel fuel costs, the battery cost per kilowatt-hour at which the hybridized configuration becomes cost-effective is calculated. This builds on a previous analysis that found the fuel savings from medium duty plug-in hybrids more than offset the vehicles' incremental price under future battery and fuel cost projections, but that they seldom did so under present day cost assumptions in the absence of purchase incentives. The results also highlight the importance of understanding the application's drive cycle specific daily distance and kinetic intensity.

  5. DiscussionPaper|DiscussionPaper|DiscussionPaper|DiscussionPaper| The Cryosphere Discuss., 7, 20292060, 2013

    E-Print Network [OSTI]

    Stocker, Thomas

    Attribution 3.0 License. Solid Earth penAccess penAccess Solid Earth Discussions The Cryosphere Open of N2, O2 and CO2 mixing ratios in a 1.5 million years old ice core B. Bereiter1,2 , H. Fischer1,2 , J of the International Partnerships in Ice Core Sciences (IPICS), one target is to retrieve an ice core reaching back

  6. Faraday Discuss., 1998, 109, 493516 General Discussion

    E-Print Network [OSTI]

    Kaiser, Ralf I.

    the extra- terrestrial origin of PAHs in the Martian meteorite ALH84001 has been extensively discussed against terrestrial contami- nation and how is this result connected to the origin of the PAHs? 1 J. L responded: Recent measurement of water-soluble amino acids by Bada et al.1 in ALH84001 demonstrated

  7. Carbon Additionality: Discussion Paper

    E-Print Network [OSTI]

    Carbon Additionality: A review Discussion Paper Gregory Valatin November 2009 Forest Research. Voluntary Carbon Standards American Carbon Registry Forest Carbon Project Standard (ACRFCPS) 27 CarbonFix Standard (CFS) 28 Climate, Community and Biodiversity Standard (CCBS) 28 Forest Carbon Standard (FCS) 28

  8. Discussions

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A Potential Microhydro SiteDaytonDestilariaDirectDirect Global

  9. NIST Privacy Engineering Objectives and Risk Model Discussion Draft Introduction

    E-Print Network [OSTI]

    liberties.1 Workshop discussions assessed models provided by other disciplines such as cybersecurity sectors and disciplines. Some key considerations that emerged from the workshop included: 1

  10. DISCUSSIONS AND CLOSURES Discussion of "1907 Static Liquefaction

    E-Print Network [OSTI]

    from the north dike failure of the Wachu sett Dam by force matching the postfailure geometry. The post-------------- DISCUSSIONS AND CLOSURES Discussion of "1907 Static Liquefaction Flow Failure of North Dike of Wachusett Dam" by Scott M. Olson, Timothy D. Stark, William H. Walton, and Gonzalo Castro

  11. The Neutral Medium

    E-Print Network [OSTI]

    Robert Braun

    2005-01-17T23:59:59.000Z

    We consider the physical conditions of the neutral medium within, and in the environments of, galaxies. The basic physical and morphological properties of the neutral medium within galaxy disks are now quite well-constrained. Systematic variations in temperature and phase-balance (of cool versus warm neutral gas) are indicated as a function of both radius and z-height. Interestingly, the cool medium line-widths are observed to be dominated by turbulent energy injection within cells of 10 pc to 1 kpc size. Deep new observations reveal that 5-10% of the neutral medium is associated within an extended halo which rotates more slowly and experiences radial inflow. Much of this component is likely to be associated with a ``galactic fountain'' type of phenomenon. However, compelling evidence is also accumulating for the importance of tidal disruption of satellites as well as continuous accretion (of both diffuse and discrete components) in fueling galaxy halos and disks. Continued fueling is even observed on scales of 100's of kpc in galaxy environments, where the neutral component is likely to be merely a trace constituent of a highly ionized plasma.

  12. Free Energy Code Online Discussion

    E-Print Network [OSTI]

    Free Energy Code Online Discussion for Building Department Personnel Join us for this FREE 90 Bruce Cheney from Anchors Aweigh Energy, LLC want to hear from YOU on residential HVAC changeout issues of the California Energy Commission. Date: 3 dates currently offered, choose the one that works for you

  13. Conclusions 7.1 Discussion

    E-Print Network [OSTI]

    Rodríguez, Inmaculada

    the movement of human characters. In addition to realistic appearance, a virtual human should exhibit realisticChapter 7 Conclusions 7.1 Discussion During the last years, the evolution of realistic animation of virtual characters has been tackled from two directions of research. The first one involves facial

  14. In-medium properties of nucleon resonances

    E-Print Network [OSTI]

    B. Krusche

    2004-12-06T23:59:59.000Z

    Recent experimental results for the in-medium properties of nucleon resonances are discussed. The experiments were done with the TAPS detector at the tagged photon beam of the MAMI accelerator in Mainz. Measured was the photoproduction of mesons (final states $\\pi^o X$, $\\eta X$, $2\\pi^oX$ and $\\pi^o\\pi^{\\pm}X$) from the nuclei $^{12}$C, $^{40}$Ca, $^{93}$Nb, and $^{208}$Pb up to the second resonance region. The results were analyzed in view of the in-medium properties of the P$_{33}$(1232), the D$_{13}$(1520), and the S$_{11}$(1535) resonances.

  15. In-Medium Properties of Hadrons

    E-Print Network [OSTI]

    B. Krusche

    2006-08-24T23:59:59.000Z

    A diverse experimental program for the study of the photoproduction of mesons off nuclei has been carried out - and is still running - at the Mainz MAMI and Bonn ELSA electron accelerators with the TAPS, Crystal Barrel, and Crystal Ball calorimeters. It is motivated as a detailed study of the in-medium properties of hadrons and the meson - nucleus interactions. Typical examples for the in-medium behavior of vector mesons ($\\omega$), scalar mesons ($\\sigma$), and nucleon resonances (P$_{33}$(1232), S$_{11}$(1535), D$_{15}$(1520)) are discussed. Special attention is paid to meson - nucleus final state interactions.

  16. Liquid chromatographic extraction medium

    DOE Patents [OSTI]

    Horwitz, E. Philip (Naperville, IL); Dietz, Mark L. (Evanston, IL)

    1994-01-01T23:59:59.000Z

    A method and apparatus for extracting strontium and technetium values from biological, industrial and environmental sample solutions using a chromatographic column is described. An extractant medium for the column is prepared by generating a solution of a diluent containing a Crown ether and dispersing the solution on a resin substrate material. The sample solution is highly acidic and is introduced directed to the chromatographic column and strontium or technetium is eluted using deionized water.

  17. Liquid chromatographic extraction medium

    DOE Patents [OSTI]

    Horwitz, E.P.; Dietz, M.L.

    1994-09-13T23:59:59.000Z

    A method and apparatus are disclosed for extracting strontium and technetium values from biological, industrial and environmental sample solutions using a chromatographic column. An extractant medium for the column is prepared by generating a solution of a diluent containing a Crown ether and dispersing the solution on a resin substrate material. The sample solution is highly acidic and is introduced directed to the chromatographic column and strontium or technetium is eluted using deionized water. 1 fig.

  18. WTP Communications Strategy Discussion Topics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsing Maps1DOE Awards ContractRebuttalCaseDiscussion Topics

  19. Absolute polarization standards at medium and high energies. [200 to 900 MeV

    SciTech Connect (OSTI)

    McNaughton, M.W.

    1980-01-01T23:59:59.000Z

    Although measurement of a polarization asymmetry is rather easy, the normalization of the measurement to obtain the analyzing power requires an absolute knowledge of the beam polarization or comparison with a known standard analyzing power. Such calibration standards can be hard to find. This paper concentrates on medium and higher energies, and divides the techniques into four categories: double scattering, polarized target methods, polarized source methods, and theoretical methods. Secondary standards are also discussed, and earlier data are assessed. 52 references, 6 figures. (RWR)

  20. Fermion dispersion in axion medium

    E-Print Network [OSTI]

    N. V. Mikheev; E. N. Narynskaya

    2008-12-02T23:59:59.000Z

    The interaction of a fermion with the dense axion medium is investigated for the purpose of finding an axion medium effect on the fermion dispersion. It is shown that axion medium influence on the fermion dispersion under astrophysical conditions is negligible small if the correct Lagrangian of the axion-fermion interaction is used.

  1. Discussion Deadline: January 2003 Online Risk-Based Security Assessment

    E-Print Network [OSTI]

    Gross, George

    -making. Test results on large-scale transmission models retrieved from the energy management system of a U the energy management system of a large U.S. utility are presented and serve to illustrate the benefits stress in bulk transmission systems and the corresponding need to im- prove security monitoring

  2. To discuss illicit nuclear trafficking

    SciTech Connect (OSTI)

    Balatsky, Galya I [Los Alamos National Laboratory; Severe, William R [Los Alamos National Laboratory; Wallace, Richard K [Los Alamos National Laboratory

    2010-01-01T23:59:59.000Z

    The Illicit nuclear trafficking panel was conducted at the 4th Annual INMM workshop on Reducing the Risk from Radioactive and Nuclear Materials on February 2-3, 2010 in Washington DC. While the workshop occurred prior to the Nuclear Security Summit, April 12-13 2010 in Washington DC, some of the summit issues were raised during the workshop. The Communique of the Washington Nuclear Security Summit stated that 'Nuclear terrorism is one of the most challenging threats to international security, and strong nuclear security measures are the most effective means to prevent terrorists, criminals, or other unauthorized actors from acquiring nuclear materials.' The Illicit Trafficking panel is one means to strengthen nuclear security and cooperation at bilateral, regional and multilateral levels. Such a panel promotes nuclear security culture through technology development, human resources development, education and training. It is a tool which stresses the importance of international cooperation and coordination of assistance to improve efforts to prevent and respond to incidents of illicit nuclear trafficking. Illicit trafficking panel included representatives from US government, an international organization (IAEA), private industry and a non-governmental organization to discuss illicit nuclear trafficking issues. The focus of discussions was on best practices and challenges for addressing illicit nuclear trafficking. Terrorism connection. Workshop discussions pointed out the identification of terrorist connections with several trafficking incidents. Several trafficking cases involved real buyers (as opposed to undercover law enforcement agents) and there have been reports identifying individuals associated with terrorist organizations as prospective plutonium buyers. Some specific groups have been identified that consistently search for materials to buy on the black market, but no criminal groups were identified that specialize in nuclear materials or isotope smuggling. In most cases, sellers do not find legitimate buyers; however, there have been specific cases where sellers did find actual terrorist group representatives. There appears to be a connection between terrorist groups engaged in trafficking conventional arms and explosives components that are also looking for both nuclear materials and radioisotopes. Sale opportunities may create additional demand for such materials. As we can observe from Figure 1, many cases in the mid-90s involved kilogram quantities of material. There were smaller amounts of material moved in 2001, 2003 and 2006. While we have seen less trafficking cases involving PujHEU in recent years, the fact that it continues at all is troubling. The trafficking cases can be presented through their life cycle: Diversion of materials leads to Trafficker and then to Terrorist/Proliferator. Most of the information we have in trafficking cases is on the Trafficker. In 16 cases reported by the IAEA, there are 10 prosecutions of the involved trafficker. However, there are no confirmed diversions of material recorded in any of the 18 seizures. Most seizures were sting operations performed by law enforcement or security agents with no actual illicit end-user involved.

  3. DOE Hydrogen Transition Analysis Workshop Discussion Comments...

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

    Workshop Discussion Comments, Questions, and Action Items DOE Hydrogen Transition Analysis Workshop Discussion Comments, Questions, and Action Items Discussion comments, questions,...

  4. Ultimate disposal of low and medium radioactive waste in France

    SciTech Connect (OSTI)

    Ringeard, C. [National Radioactive Waste Management Agency, Fontenay aux Roses (France). Environmental, Safety, Quality Dept.

    1993-12-31T23:59:59.000Z

    The National Radioactive Waste Management Agency (ANDRA) has been entrusted with the long-term management of radioactive waste. This paper presents the methodology of safety assessment used by ANDRA for a land disposal facility of radioactive waste with short or medium half-life and with low or medium specific activity. This methodology was used in the design of ``the Centre de stockage de l`Aube``.

  5. Japanese Computing Center Discusses Potential Collaborations...

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

    Japanese Computing Center Discusses Potential Collaborations Japanese Computing Center Discusses Potential Collaborations February 26, 2011 Representatives from Japan's Tsukuba...

  6. Structure functions of free and in-medium nucleons

    SciTech Connect (OSTI)

    Ian Cloet; W. Bentz; Anthony Thomas

    2005-04-01T23:59:59.000Z

    Spin-dependent quark light-cone momentum distributions are calculated for a nucleon in the nuclear medium. We utilize a modified NJL model where the nucleon is described as a composite quark-diquark state. Scalar and vector mean fields are incorporated in the nuclear medium and these fields couple to the confined quarks in the nucleon. The effect of these fields on the spin-dependent distributions is investigated. Our results for the ''spin-dependent EMC effect'' are also discussed.

  7. Lyman alpha Transfer in a thick, dusty, and static medium

    E-Print Network [OSTI]

    Sang-Hyeon Ahn; Hee-Won Lee; Hyung-Mok Lee

    2000-06-13T23:59:59.000Z

    We developed a Monte Carlo code that describes the resonant Lyman alpha line transfer in an optically thick, dusty, and static medium. The code was tested against the analytic formula derived by Neufeld (1990). We explain the line transfer mechanism for a wide range of line center optical depths by tracing histories of photons in the medium. We find that photons escape from the medium by a series of wing scatterings, during which polarization may develop. We applied our code to examine the amount of dust extinction around the Lyman alpha in primeval galaxies. Brief discussions on the astrophysical application of our work are presented.

  8. Solar radiation resource assessment

    SciTech Connect (OSTI)

    Not Available

    1990-11-01T23:59:59.000Z

    The bulletin discusses the following: introduction; Why is solar radiation resource assessment important Understanding the basics; the solar radiation resource assessment project; and future activities.

  9. Nucleon Electromagnetic Form Factors: Free Space and Medium Modifications

    SciTech Connect (OSTI)

    Wally Melnitchouk

    2003-10-01T23:59:59.000Z

    We review recent developments in the study of electromagnetic form factors of the nucleon, both in free space and in the nuclear medium. For the free nucleon case, we discuss the ratio of electric to magnetic proton form factors, and the influence of two-photon exchange on the form factor extraction. For the bound nucleon, we examine the implications of the small but non-zero modification of proton form factors in the nuclear medium suggested by recent data on polarized proton knockout reactions off He-4, and discuss constraints which it could place on models of the nuclear EMC effect.

  10. [Medium energy meson research

    SciTech Connect (OSTI)

    Crowe, K.M.

    1992-01-01T23:59:59.000Z

    The activities of this group are primarily concerned with experiments using the Crystal Barrel Detector. This detector is installed and operating at the Low Energy Antiproton Ring (LEAR) at CERN. QCD, the modem theory of the strong interaction, is reasonably well understood at high energies, but unfortunately, low-energy QCD is still not well understood, and is far from being adequately tested. The Crystal Barrel experiments are designed to provide some of the tests. The basic line of research involves meson spectroscopy, analyses bearing on the quark and/or gluon content of nuclear states, and the exploration of mechanisms and rules which govern p[bar p] annihilation dynamics. The Crystal Barrel Detector detects and identifies charged and neutral particles with a geometric acceptance close to 100%. The principal component of the detector is an array of 1,380 CsI(TI) crystals. These crystals surround a Jet Drift Chamber (JDC), located in a 1.5 Tesla magnetic field, which measures the momentum and dE/dx of charged particles. One of the very interesting physics goals of the detector is a search for exotic mesonic states -- glueballs and hybrids. Annihilation at rest will be studied with both liquid and gaseous hydrogen targets. The gaseous target offers the possibility of triggering on atomic L-shell X rays so that specific initial angular momentum states can be studied.These topics as well as other related topics are discussed in this report.

  11. [Medium energy meson research

    SciTech Connect (OSTI)

    Crowe, K.M.

    1992-12-01T23:59:59.000Z

    The activities of this group are primarily concerned with experiments using the Crystal Barrel Detector. This detector is installed and operating at the Low Energy Antiproton Ring (LEAR) at CERN. QCD, the modem theory of the strong interaction, is reasonably well understood at high energies, but unfortunately, low-energy QCD is still not well understood, and is far from being adequately tested. The Crystal Barrel experiments are designed to provide some of the tests. The basic line of research involves meson spectroscopy, analyses bearing on the quark and/or gluon content of nuclear states, and the exploration of mechanisms and rules which govern p{bar p} annihilation dynamics. The Crystal Barrel Detector detects and identifies charged and neutral particles with a geometric acceptance close to 100%. The principal component of the detector is an array of 1,380 CsI(TI) crystals. These crystals surround a Jet Drift Chamber (JDC), located in a 1.5 Tesla magnetic field, which measures the momentum and dE/dx of charged particles. One of the very interesting physics goals of the detector is a search for exotic mesonic states -- glueballs and hybrids. Annihilation at rest will be studied with both liquid and gaseous hydrogen targets. The gaseous target offers the possibility of triggering on atomic L-shell X rays so that specific initial angular momentum states can be studied.These topics as well as other related topics are discussed in this report.

  12. MAE 124/ESYS 103 Discussion: Week 7 Transportation Alternatives

    E-Print Network [OSTI]

    Gille, Sarah T.

    MAE 124/ESYS 103 Discussion: Week 7 Transportation Alternatives 0. San Diego government routes. And today is Bike to Work Day. Let's take a Life Cycle Assessment approach to transportation planning? What steps do we need to pursue? 1. Why does SANDAG care about transportation? Why does UCSD

  13. Markets for low- and medium-Btu coal gasification: an analysis of 13 site specific studies

    SciTech Connect (OSTI)

    Not Available

    1981-09-01T23:59:59.000Z

    In 1978 the US Department of Energy (DOE), through its Office of Resource Applications, developed a commercialization plan for low- and medium-Btu coal gasification. Several initial steps have been taken in that process, including a comprehensive study of industrial markets, issuance of a Notice of Program Interest, and funding of proposals under the Alternate Fuels Legislation (P.L. 96-126). To assist it in the further development and administration of the commercialization plan, the Office of Resource Applications has asked Booz, Allen and Hamilton to assess the market prospects for low- and medium-Btu coal gasification. This report covers the detailed findings of the study. Following the introduction which discusses the purpose of the study, approach used for the assignment and current market attitudes on coal gasification, there are three chapters on: systems configurations and applications; economic and finanical attractiveness; and summary of management decisions based on feasibility study results. The final chapter briefly assesses the management decisions. The general consensus seems to be that coal gasification is a technology that will be attractive in the future but is marginal now. 6 figures, 5 tables.

  14. Assistant Secretary Hoffman Discusses Grid Modernization with...

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

    Assistant Secretary Hoffman Discusses Grid Modernization with the New York Times and E&E TV Assistant Secretary Hoffman Discusses Grid Modernization with the New York Times and E&E...

  15. Budget Discussion OHEP May 12, 2008

    E-Print Network [OSTI]

    Wechsler, Risa H.

    Budget Discussion OHEP May 12, 2008 Page 1 SLAC PPA Budget Discussion: FY09 Allocations Among BNR Directorate #12;Budget Discussion OHEP May 12, 2008 Page 2 Purpose of This Meeting * In February, we presented our budget plans for FY09 and beyond, guided by the future scientific program that we laid out

  16. Electrochemical cells for medium- and large-scale energy storage

    SciTech Connect (OSTI)

    Wang, Wei; Wei, Xiaoliang; Choi, Daiwon; Lu, Xiaochuan; Yang, G.; Sun, C.

    2014-12-12T23:59:59.000Z

    This is one of the chapters in the book titled “Advances in batteries for large- and medium-scale energy storage: Applications in power systems and electric vehicles” that will be published by the Woodhead Publishing Limited. The chapter discusses the basic electrochemical fundamentals of electrochemical energy storage devices with a focus on the rechargeable batteries. Several practical secondary battery systems are also discussed as examples

  17. INTERMOUNTAIN INDUSTRIAL ASSESSMENT CENTER

    SciTech Connect (OSTI)

    MELINDA KRAHENBUHL

    2010-05-28T23:59:59.000Z

    The U. S. Department of Energy’s Intermountain Industrial Assessment Center (IIAC) at the University of Utah has been providing eligible small- and medium-sized manufacturers with no-cost plant assessments since 2001, offering cost-effective recommendations for improvements in the areas of energy efficiency, pollution prevention, and productivity improvement.

  18. Global Gevrey Regularity for the B'enard Convection in Porous Medium with Zero

    E-Print Network [OSTI]

    Global Gevrey Regularity for the B'enard Convection in Porous Medium with Zero Darcy­Prandtl Number for the three­dimensional B'enard convection model in porous medium with zero Darcy­Prandtl number using system for energy conservation, enhancing recovery of oil by thermal methods, assessing risks for nuclear

  19. Glasma Evolution in Partonic Medium

    E-Print Network [OSTI]

    A. V. Nazarenko

    2010-11-23T23:59:59.000Z

    We examine a scenario of the abelianized Glasma evolution with accounting for back-reaction of partonic medium in ultrarelativistic heavy-ion collisions. We announce that such a generalization leads to the instabilities and the presence of negative color conductivity in the system.

  20. Canada's Arctic Gateway: Discussion Paper Summary

    E-Print Network [OSTI]

    Martin, Jeff

    Canada's Arctic Gateway: Discussion Paper Summary September 2010 The following summarizes key Canada's Arctic Gateway a reality in terms of both national public policy and international presence the Government of Canada's national gateway policy framework. This discussion paper's use of the term "Arctic

  1. For discussion only Phase Two Process

    E-Print Network [OSTI]

    Sheridan, Jennifer

    For discussion only 1 Phase Two Process 1 Revised per Advisory Committee 10/20/11Advisory Reviews Input on Select Opportunities and Charges AE to Begin Solution Development Process Organizes Work, Identifies Business Process Owners and Affected Constituent, and Refines Data Analysis #12;For discussion

  2. 1 | Forestry, sustainable behaviours and behaviour change: Discussion paper |2012| Discussion Paper: Behaviour Change

    E-Print Network [OSTI]

    1 | Forestry, sustainable behaviours and behaviour change: Discussion paper |2012| Discussion Paper: Behaviour Change Forestry, sustainable behaviours and behaviour change ­ a discussion paper1 Introduction This discussion paper explores what the current focus on behaviour means for the forestry sector, using evidence

  3. Plasma Wave Properties of the Schwarzschild Magnetosphere in a Veselago Medium

    E-Print Network [OSTI]

    M. Sharif; Noureen Mukhtar

    2010-06-18T23:59:59.000Z

    We re-formulate the 3+1 GRMHD equations for the Schwarzschild black hole in a Veselago medium. Linear perturbation in rotating (non-magnetized and magnetized) plasma is introduced and their Fourier analysis is considered. We discuss wave properties with the help of wave vector, refractive index and change in refractive index in the form of graphs. It is concluded that some waves move away from the event horizon in this unusual medium. We conclude that for the rotating non-magnetized plasma, our results confirm the presence of Veselago medium while the rotating magnetized plasma does not provide any evidence for this medium.

  4. Integrated Environmental Assessment Part III: ExposureAssessment

    SciTech Connect (OSTI)

    McKone, Thomas E.; Small, Mitchell J.

    2006-06-01T23:59:59.000Z

    Human exposure assessment is a key step in estimating the environmental and public health burdens that result chemical emissions in the life cycle of an industrial product or service. This column presents the third in a series of overviews of the state of the art in integrated environmental assessment - earlier columns described emissions estimation (Frey and Small, 2003) and fate and transport modeling (Ramaswami, et al., 2004). When combined, these first two assessment elements provide estimates of ambient concentrations in the environment. Here we discuss how both models and measurements are used to translate ambient concentrations into metrics of human and ecological exposure, the necessary precursors to impact assessment. Exposure assessment is the process of measuring and/or modeling the magnitude, frequency and duration of contact between a potentially harmful agent and a target population, including the size and characteristics of that population (IPCS, 2001; Zartarian, et al., 2005). Ideally the exposure assessment process should characterize the sources, routes, pathways, and uncertainties in the assessment. Route of exposure refers to the way that an agent enters the receptor during an exposure event. Humans contact pollutants through three routes--inhalation, ingestion, and dermal uptake. Inhalation occurs in both outdoor environments and indoor environments where most people spend the majority of their time. Ingestion includes both water and food, as well as soil and dust uptake due to hand-to-mouth activity. Dermal uptake occurs through contacts with consumer products; indoor and outdoor surfaces; the water supply during washing or bathing; ambient surface waters during swimming or boating; soil during activities such as work, gardening, and play; and, to a lesser extent, from the air that surrounds us. An exposure pathway is the course that a pollutant takes from an ambient environmental medium (air, soil, water, biota, etc), to an exposure medium (indoor air, food, tap water, etc.) and to an exposed individual. Exposure scenarios are used to define plausible pathways for human contact. Recognition of the multiple pathways possible for exposure highlights the importance of a multimedia, multipathway exposure framework.

  5. HEDS Discussion Paper 10/15 Disclaimer

    E-Print Network [OSTI]

    Oakley, Jeremy

    -related quality of life is an important issue in the treatment of breast cancer and health-state utilities states, 3) adverse events in breast cancer and its treatment, 4) non-specific breast cancer, 5 and length of life are both important to the assessment of treatments for breast cancer. These outcomes can

  6. Conference Discussion of the Nuclear Force

    SciTech Connect (OSTI)

    Franz Gross,Thomas D. Cohen,Evgeny Epelbaum,R. Machleidt

    2010-12-01T23:59:59.000Z

    Discussion of the nuclear force, lead by a round table consisting of T. Cohen, E. Epelbaum, R. Machleidt, and F. Gross (chair). After an invited talk by Machleidt, published elsewhere in these proceedings, brief remarks are made by Epelbaum, Cohen, and Gross, followed by discussion from the floor moderated by the chair. The chair asked the round table and the participants to focus on the following issues: (1)What does each approach (chiral effective field theory, large Nc, and relativistic phenomenology) contribute to our knowledge of the nuclear force? Do we need them all? Is any one transcendent? (2) How important for applications (few body, nuclear structure, EMC effect, for example) are precise fits to the NN data below 350 MeV? How precise do these fits have to be? (3) Can we learn anything about nonperturbative QCD from these studies of the nuclear force? The discussion presented here is based on a video recording made at the conference and transcribed afterward.

  7. The Interstellar Medium Surrounding the Sun

    E-Print Network [OSTI]

    Royer, Dana

    interstellar medium (ISM) suggest an in- homogeneous Galactic environment, with shocks that destroy grainsThe Interstellar Medium Surrounding the Sun Priscilla C. Frisch,1 Seth Redfield,2 and Jonathan D by Annual Reviews. All rights reserved 0066-4146/11/0922-0237$20.00 Keywords interstellar medium

  8. Medium Effects in Parton Distributions

    SciTech Connect (OSTI)

    William Detmold, Huey-Wen Lin

    2011-12-01T23:59:59.000Z

    A defining experiment of high-energy physics in the 1980s was that of the EMC collaboration where it was first observed that parton distributions in nuclei are non-trivially related to those in the proton. This result implies that the presence of the nuclear medium plays an important role and an understanding of this from QCD has been an important goal ever since Here we investigate analogous, but technically simpler, effects in QCD and examine how the lowest moment of the pion parton distribution is modified by the presence of a Bose-condensed gas of pions or kaons.

  9. Consulting Assistance on Economic Discussion Papers

    E-Print Network [OSTI]

    Consulting Assistance on Economic Reform II Discussion Papers The objectives of the Consulting Assistance on Economic Reform (CAER II) project are to contribute to broad-based and sustainable economic, Bureau for Global Programs, Field Support and Research, Center for Economic Growth and Agricultural

  10. Earth: The Early Years We discuss ...

    E-Print Network [OSTI]

    Earth: The Early Years We discuss ... · What happened to the Earth during the first few billion)? · What is the relationship to (early) life? #12;Age of Earth James Ussher (17th C) biblical account: 6: 20-40 m.y. (million years!) Charles Darwin evolution >300 m.y. Lord Kelvin (1880's) cooling Earth: 50

  11. Discussion Papers in Economics Department of Economics

    E-Print Network [OSTI]

    Doran, Simon J.

    Discussion Papers in Economics Department of Economics University of Surrey Guildford Surrey GU2 7 participants at Aberdeen, Essex, LSE, UCL, the Paris School of Economics and from participants in the 2007 Royal Economic Society annual conference held in Warwick, the 2007 American Law and Economics

  12. --Discussion Paper--ORGANIC AND CONVENTIONAL POTATOES

    E-Print Network [OSTI]

    Radeloff, Volker C.

    1 --Discussion Paper-- ORGANIC AND CONVENTIONAL POTATOES: PRICING AND DEMAND, 2000-2005 I. ORGANICS). Among fresh vegetables, the top organic purchases are lettuce, tomatoes, broccoli, onions, and potatoes. Among selected vegetables, a recent US study found the largest organic premium was for potatoes (Zhang

  13. JC3 Medium Impact Assessment Bulletins | Department of Energy

    Office of Environmental Management (EM)

    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 122Commercial602 1,39732on ArmedManufacturing |Time-BasedIrving Pressley

  14. Colorado Statewide Forest Resource Assessment

    E-Print Network [OSTI]

    Colorado Statewide Forest Resource Assessment A Foundation for Strategic Discussion and Private Forestry Redesign Initiative 2 National Guidance for Statewide Forest Resource Assessments 4 The Colorado Statewide Resource Assessment and all appendices are available online on the Colorado State Forest

  15. Summary of experimental discussion session at ILWOG42

    SciTech Connect (OSTI)

    Viera, David J [Los Alamos National Laboratory; Dardenne, Yves M [LLNL

    2010-09-21T23:59:59.000Z

    During the ILWOG-42 held at LANL in May of 2010, a set of discussions between scientists from AWE, LANL, and LLNL was held to develop collaborative experiments that would improve radiochemical diagnostic evaluations. DOE headquarters has asked that a 5-year roadmap be developed to resolve outstanding issues. The goal of this discussion was to explore common areas of interest where collaborative experiments could be undertaken to resolve identified problems and to gain support across the weapons program and DOE for this work. Collaboration was encouraged not only between these laboratories, but with University collaborators who are funded through the NNSA Stewardship Science Academic Alliance. In the development of experiments there were some criteria that were established. The uncertainty budgets will need to be assessed for proposed experiments so that potential gains to the programs can be determined. Measurements using different methods should be encouraged to provide greater confidence (and hopefully improved accuracy) in the result. Six distinct subjects were discussed: (1) Experiments at critical assemblies/14-MeV neutron (D+T) facilities; (2) Fission-chain-yield (FCY) energy dependence; (3) Absolute FCY measurements; (4) Measurements of {sup 147}Nd 531-keV absolute gamma-ray intensity; (5) Atom scale cross calibrations; and (6) Other experimental issues. A short summary of the discussions is given.

  16. Discussion of EIA-411 Data Files

    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 40Coal Stocks at CommercialDecadeReservesYear21CompanySFoot)YearD e sDiscussion

  17. Hydrogen Pipeline Discussion | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D e e&FundingDiscussion Hydrogen Pipeline

  18. Carbon Cycle Discussion After the warm-up quiz, discuss the carbon cycle.

    E-Print Network [OSTI]

    Carrington, Emily

    Carbon Cycle Discussion After the warm-up quiz, discuss the carbon cycle. Carbon is one is without carbon. Where else is carbon on our Earth? In rocks, living organisms, the atmosphere, oceans Does carbon stay in one place? What processes include moving carbon? Introduce residence time: How long does

  19. Interaction of gravitational waves with an elastic solid medium

    E-Print Network [OSTI]

    B. Carter

    2001-02-28T23:59:59.000Z

    Contents. 1. Introduction. 2. Kinematics of a Material Medium: Material Representation. 3. Kinematics of a Material Medium: Convected Differentials. 4. Kinematics of a Perfect Elastic Medium. 5. Small Gravitational Perturbations of an Elastic Medium.

  20. Evaluation of fuel consumption potential of medium and heavy duty vehicles through modeling and simulation.

    SciTech Connect (OSTI)

    Delorme, A.; Karbowski, D.; Sharer, P.; Energy Systems

    2010-03-31T23:59:59.000Z

    The main objective of this report is to provide quantitative data to support the Committee in its task of establishing a report to support rulemaking on medium- and heavy-duty fuel efficiency improvement. In particular, it is of paramount importance for the Committee to base or illustrate their conclusions on established models and actual state-of-the art data. The simulations studies presented in the report have been defined and requested by the members of the National Academy committee to provide quantitative inputs to support their recommendations. As such, various technologies and usage scenarios were considered for several applications. One of the objective is to provide the results along with their associated assumptions (both vehicle and drive cycles), information generally missing from public discussions on literature search. Finally, the advantages and limitations of using simulation will be summarized. The study addresses several of the committee tasks, including: (1) Discussion of the implication of metric selection; (2) Assessing the impact of existing technologies on fuel consumption through energy balance analysis (both steady-state and standard cycles) as well as real world drive cycles; and (3) Impact of future technologies, both individually and collectively.

  1. Enrichment of the Intracluster Medium

    E-Print Network [OSTI]

    D. Thomas

    1998-11-25T23:59:59.000Z

    The relevance of galaxies of different luminosity and mass for the chemical enrichment of the intracluster medium (ICM) is analysed. For this purpose, I adopt the composite luminosity function of cluster galaxies from Trentham (1998), which exhibits a significant rise at the very faint end. The model - adopting a universal Salpeter IMF - is calibrated on reproducing the M_Fe/L_tot, M_Fe/M_*, and alpha/Fe ratios observed in clusters. Although the contribution to total luminosity and ICM metals peaks around L* galaxies (M* approx -20), faint objects with M_B>-18 still provide at least 30 per cent of the metals present in the ICM. In consistency with the solar alpha/Fe ratios determined by {ASCA}, the model predicts that 60 per cent of the ICM iron comes from Type Ia supernovae. The predicted slope of the relation between intracluster gas mass and cluster luminosity emerges shallower than the observed one, indicating that the fraction of primordial gas increases with cluster richness.

  2. Medium and Heavy Duty Vehicle Field Evaluations (Presentation)

    SciTech Connect (OSTI)

    Walkowicz, K.

    2014-06-01T23:59:59.000Z

    This presentation discusses field evaluations of medium- and heavy-duty vehicles performed by NREL. The project provides medium-duty (MD) and heavy-duty (HD) test results, aggregated data, and detailed analysis, including 3rd party unbiased data (data that would not normally be shared by industry in an aggregated and detailed manner). Over 5.6 million miles of advanced technology MD and HD truck data have been collected, documented, and analyzed on over 240 different vehicles since 2002. Data, analysis, and reports are shared within DOE, national laboratory partners, and industry for R&D planning and strategy. The results help guide R&D for new technology development, help define intelligent usage of newly developed technology, and help fleets/users understand all aspects of advanced technology.

  3. Probabilistic picture of in-medium jet evolution

    E-Print Network [OSTI]

    Yacine Mehtar-Tani

    2014-04-29T23:59:59.000Z

    We briefly discuss the recently developed probabilistic picture for in-medium jet evolution that is driven by independent multiple scatterings and branchings. These are controlled by the jet quenching parameter $\\hat q$. In this framework, large radiative corrections to $p_\\perp$-broadening of partons in the jet, enhanced by a double logarithm (DL) of the medium size $L$, are recovered. We argue that these non-local corrections are universal and can be reabsorbed in a renormalization of the jet quenching parameter without spoiling the probabilistic picture. As a consequence, we find that for large media, the mean radiative energy loss result scales as $L^{2+\\gamma}$, where the anomalous dimension $\\gamma=2\\sqrt{\\alpha_sN_c/\\pi}$.

  4. The Baryon Catastrophe and the multiphase intracluster medium

    E-Print Network [OSTI]

    K. F. Gunn; P. A. Thomas

    1995-10-17T23:59:59.000Z

    We review the theories and observations which together have led to the concept of the Baryon Catastrophe: observations of the baryon fraction on the scale of clusters of galaxies appear to be at least three times as high as the universal baryon fraction predicted by the theory of primordial nucleosynthesis in a flat, $\\Omega_0 = 1$, universe. We investigate whether this discrepancy could be eliminated by treating the intracluster gas as a multiphase medium, and find that this treatment both lowers the calculated mass of gas in a cluster and increases the inferred gravitational potential. These combined effects can reduce the calculated baryon fraction by between a quarter and a half: the precise amount depends upon the volume fraction distribution of density phases in the gas but is independent of the temperature profile across the cluster. Thus moving to a multiphase intracluster medium cannot resolve the Baryon Catastrophe by itself; other possible causes and explanations are discussed.

  5. Hot Plasma Waves Surrounding the Schwarzschild Event Horizon in a Veselago Medium

    E-Print Network [OSTI]

    M. Sharif; Noureen Mukhtar

    2011-01-05T23:59:59.000Z

    This paper investigates wave properties of hot plasma in a Veselago medium. For the Schwarzschild black hole, the $3+1$ GRMHD equations are re-formulated which are linearly perturbed and then Fourier analyzed for rotating (non-magnetized and magnetized) plasmas. The graphs of wave vector, refractive index and change in refractive are used to discuss the wave properties. The results obtained confirm the presence of Veselago medium for both rotating (non-magnetized and magnetized) plasmas. This work generalized the isothermal plasma waves in the Veselago medium to hot plasma case.

  6. A renewed look at eta' in medium

    E-Print Network [OSTI]

    Youngshin Kwon; Su Houng Lee; Kenji Morita; Gyuri Wolf

    2012-04-14T23:59:59.000Z

    We revisit the question of whether the U_A(1) symmetry is effectively restored in hot and dense medium. In particular, by generalizing the Witten-Veneziano formula to finite temperature, we investigate whether the mass of eta'-meson will change in medium due to the restoration of chiral symmetry.

  7. Axion-medium effect on fermion dispersion

    SciTech Connect (OSTI)

    Mikheev, N. V., E-mail: mikheev@uniyar.ac.ru; Narynskaya, E. N., E-mail: elenan@uniyar.ac.r [Yaroslavl State University (Russian Federation)

    2008-08-15T23:59:59.000Z

    The interaction of fermions with a dense axion medium is considered with the aim of studying the effect of the axionmediumon fermion dispersion. It is shown that, if use is made of a correct Lagrangian for axion-fermion interaction, the effect of a dense axion medium on fermion dispersion is negligible under real astrophysical conditions.

  8. EERE Leadership Discusses Energy Innovation in Midwest | Department...

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

    EERE Leadership Discusses Energy Innovation in Midwest EERE Leadership Discusses Energy Innovation in Midwest October 28, 2014 - 3:06pm Addthis EERE Leadership Discusses Energy...

  9. In-Medium Energy Loss and Correlations in Pb-Pb Collisions at sqrt(s_NN) = 2.76 TeV

    E-Print Network [OSTI]

    Jan Fiete Grosse-Oetringhaus; for the ALICE collaboration

    2011-09-28T23:59:59.000Z

    ALICE (A Large Ion Collider Experiment) is the dedicated heavy-ion experiment at the LHC. In fall 2010, Pb-Pb collisions were recorded at a center-of-mass energy of 2.76 TeV per nucleon pair, about 14 times higher than the energy achieved in A-A collisions at RHIC. The study of the produced hot and dense matter with an unprecedented energy density allows the characterization of the quark-gluon plasma, the deconfined state of quarks and gluons, predicted by QCD. The study of in-medium partonic energy loss allows insights into the density of the medium and the energy-loss mechanisms. This paper presents results based on inclusive spectra as well as two and more-particle correlations of charged particles. These are well suited to assess in-medium effects, ranging from the suppression of particles (R_AA) and away-side jets (I_AA) at high pT to long-range phenomena attributed to collective effects like the ridge at low pT. The analysis is discussed and the results are presented in the context of earlier RHIC measurements where appropriate.

  10. Holographic Nucleons in the Nuclear Medium

    E-Print Network [OSTI]

    Bum-Hoon Lee; Chanyong Park

    2015-03-12T23:59:59.000Z

    We investigate the nucleon's rest mass and dispersion relation in the nuclear medium which is holographically described by the thermal charged AdS geometry. On this background, the chiral condensate plays an important role to determine the nucleon's mass in both the vacuum and the nuclear medium. It also significantly modifies the nucleon's dispersion relation. The nucleon's mass in the high density regime increases with density as expected, while in the low density regime it slightly decreases. We further study the splitting of the nucleon's masses caused by the isospin interaction with the nuclear medium.

  11. Method to prepare nanoparticles on porous mediums

    DOE Patents [OSTI]

    Vieth, Gabriel M. (Knoxville, TN) [Knoxville, TN; Dudney, Nancy J. (Oak Ridge, TN) [Oak Ridge, TN; Dai, Sheng (Knoxville, TN) [Knoxville, TN

    2010-08-10T23:59:59.000Z

    A method to prepare porous medium decorated with nanoparticles involves contacting a suspension of nanoparticles in an ionic liquid with a porous medium such that the particles diffuse into the pores of the medium followed by heating the resulting composition to a temperature equal to or greater than the thermal decomposition temperature of the ionic liquid resulting in the removal of the liquid portion of the suspension. The nanoparticles can be a metal, an alloy, or a metal compound. The resulting compositions can be used as catalysts, sensors, or separators.

  12. On viscosity, conduction and sound waves in the intracluster medium

    E-Print Network [OSTI]

    A. C. Fabian; C. S. Reynolds; G. B. Taylor; R. J. H. Dunn

    2005-08-04T23:59:59.000Z

    Recent X-ray and optical observations of the Perseus cluster indicate that the viscous and conductive dissipation of sound waves is the mechanism responsible for heating the intracluster medium and thus balancing radiative cooling of cluster cores. We discuss this mechanism more generally and show how the specific heating and cooling rates vary with temperature and radius. It appears that the heating mechanism is most effective above 10^7K, which allows for radiative cooling to proceed within normal galaxy formation but will stifle the growth of very massive galaxies. The scaling of the wavelength of sound waves with cluster temperature and feedback in the system are investigated.

  13. A Discussion on Interstellar Pickup Ions By: Brad Cannon

    E-Print Network [OSTI]

    ;characterized by ram pressure. When the ram pressure equals the thermal pressure of the interstellar plasma the interstellar medium. We call this the heliospheric bow shock. Figure 2 is an example of both of the termination

  14. Incompatibility of Contrast Medium and Trisodium Citrate

    SciTech Connect (OSTI)

    Delcour, Christian, E-mail: christian.delcour@chu-charleroi.be; Bruninx, Guy [CHU de Charleroi, Department of Radiology (Belgium)] [CHU de Charleroi, Department of Radiology (Belgium)

    2013-02-15T23:59:59.000Z

    To test the compatibility of trisodium citrate, a catheter lock solution, with iodinated contrast medium. Iohexol, iobitridol, iodixanol, ioxaglate, ioxithalamate, iomeprol, and iopromide were tested. In all tests, 2 ml of contrast medium were mixed with 2 ml of trisodium citrate solution. Iodixanol and ioxaglate provoked a highly viscous gluelike precipitation when mixed with trisodium citrate. A brief transient precipitate was observed with iohexol, iomeprol, and ioxithalamate. Permanent precipitation occurred with iobitridol and iopromide. One must be aware of the potential for precipitation when contrast medium is mixed with trisodium citrate solution. Before trisodium citrate solution is injected, the catheter should be thoroughly flushed with saline if a contrast medium has previously been injected through it.

  15. Special light trajectories in optical medium

    E-Print Network [OSTI]

    Miroslav Pardy

    2010-08-12T23:59:59.000Z

    The Fermat principle is used to define trajectories in nonhomogenous optical media. The Poincare model of the Lobachevskii geometry is derived. The index of refraction is determined for the light confined in the circular trajectory in the optical medium.

  16. Charmonium in medium: From correlators to experiment

    E-Print Network [OSTI]

    Zhao, Xingbo; Rapp, Ralf.

    2010-01-01T23:59:59.000Z

    We set up a framework in which in-medium charmonium properties are constrained by thermal lattice quantum chromodynamics and subsequently implemented into a thermal rate equation enabling the comparison with experimental data in heavy-ion collisions...

  17. Ethanol production using a soy hydrolysate-based medium or a yeast autolysate-based medium

    DOE Patents [OSTI]

    Ingram, Lonnie O. (Gainesville, FL)

    2000-01-01T23:59:59.000Z

    This invention presents a method for the production of ethanol that utilizes a soy hydrolysate-based nutrient medium or a yeast autolysate-based medium nutrient medium in conjunction with ethanologenic bacteria and a fermentable sugar for the cost-effective production of ethanol from lignocellulosic biomass. The invention offers several advantages over presently available media for use in ethanol production, including consistent quality, lack of toxins and wide availability.

  18. Jet Fragmentation in Medium and Vacuum with the PHENIX Detector

    E-Print Network [OSTI]

    Matthew Nguyen for the PHENIX Collaboration

    2010-08-08T23:59:59.000Z

    One of the most active areas of investigation in relativistic heavy-ion collisions is the study of the jet quenching phenomenon whereby hard partons lose their energy as they traverse the hot, dense matter created in such collisions. Strong parton energy loss has been observed in central nucleus-nucleus collisions as evidenced by the a large suppression of the yield of high pT hadrons as compared to the expected yield based on measurements in p+p collisions. Moreover, measurements of back-to-back correlations of charged hadrons suggest that jet shapes are strongly modified modified by the medium. The quantitative interpretation of single and di-hadron measurements is, however, complicated by the fact that the initial parton energy is unknown. A more informative measurement would be one in which the initial parton energy is known, allowing the determination of the fragmentation function, which may be effectively modified from its vacuum form by the presence of the medium. Two measurements in which the initial parton energy may be estimated are discussed in these proceedings: jet reconstruction and two- particle correlations using direct photons. Jet reconstruction in nuclear collisions is challenging due to the large background of soft particles, fluctuations of which give rise to fake jets. Direct photons can be used to estimate the initial parton energy of the recoil jet without recourse to jet reconstruction algorithms. However, such studies suffer from a smaller rate and the direct photon signal must be disentangled from a large background of decay photons. We present jet reconstruction results which use an algorithm suitable for a high multiplicity environment. We also present results of two-particle correlations using direct photons. These results are discussed in the context of medium modification to the fragmentation function.

  19. Small- and Medium-Size Building Automation and Control System...

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

    Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Emerging...

  20. Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration...

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

    Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and Evaluation Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and Evaluation 2011 DOE...

  1. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

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

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis 2011 DOE Hydrogen and Fuel Cells...

  2. alkaline medium peliculas: Topics by E-print Network

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

    38 The Local Interstellar Medium Astrophysics (arXiv) Summary: The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general...

  3. aeruginosa culture medium: Topics by E-print Network

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

    W. 95 The Local Interstellar Medium Astrophysics (arXiv) Summary: The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general...

  4. activation depolarizes medium: Topics by E-print Network

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

    W. 173 The Local Interstellar Medium Astrophysics (arXiv) Summary: The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general...

  5. Removal of carbon tetrachloride from a layered porous medium...

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

    carbon tetrachloride from a layered porous medium by means of soil vapor extraction enhanced by desiccation and water Removal of carbon tetrachloride from a layered porous medium...

  6. Removal of Carbon Tetrachloride from a Layered Porous Medium...

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

    Carbon Tetrachloride from a Layered Porous Medium by Means of Soil Vapor Extraction Enhanced by Desiccation and Water Removal of Carbon Tetrachloride from a Layered Porous Medium...

  7. EPA`s risk assessment guidelines: Overview

    SciTech Connect (OSTI)

    Patton, D.E. [Environmental Protection Agency, Washington, DC (United States)

    1990-12-31T23:59:59.000Z

    The US Environmental Protection Agency (EPA) risk assessment guidelines for cancer, quantification, and exposure issues are discussed.

  8. Industrial Assessment Center

    SciTech Connect (OSTI)

    Dr. Diane Schaub

    2007-03-05T23:59:59.000Z

    Since its inception, the University of Florida Industrial Assessment Center has successfully completed close to 400 energy assessments of small to medium manufacturing facilities in Florida, southern Georgia and southern Alabama. Through these efforts, recommendations were made that would result in savings of about $5 million per year, with an implementation rate of 20-25%. Approximately 80 engineering students have worked for the UF-IAC, at least 10 of whom went on to work in energy related fields after graduation. Additionally, through the popular course in Industrial Energy Management, many students have graduated from the University of Florida with a strong understanding and support of energy conservation methods.

  9. DOE Hydrogen and Fuel Cell Activities Panel Discussion: 2010...

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

    DOE Hydrogen and Fuel Cell Activities Panel Discussion: 2010 SAE World Congress DOE Hydrogen and Fuel Cell Activities Panel Discussion: 2010 SAE World Congress Presentation by...

  10. Energy Secretary Bodman Travels to Moscow, Baku, Kiev to Discuss...

    Office of Environmental Management (EM)

    Energy Secretary Bodman Travels to Moscow, Baku, Kiev to Discuss Energy and Nuclear Security Energy Secretary Bodman Travels to Moscow, Baku, Kiev to Discuss Energy and Nuclear...

  11. Secretary Chu to Discuss Importance of Electric Grid Modernization...

    Energy Savers [EERE]

    Discuss Importance of Electric Grid Modernization to U.S. Competitiveness at Gridwise Global Forum Secretary Chu to Discuss Importance of Electric Grid Modernization to U.S....

  12. Discussion on a Code Comparison Effort for the Geothermal Technologies...

    Office of Environmental Management (EM)

    Discussion on a Code Comparison Effort for the Geothermal Technologies Program Discussion on a Code Comparison Effort for the Geothermal Technologies Program Code comparison...

  13. DOE Hydrogen and Fuel Cell Activities Panel Discussion: 2010...

    Energy Savers [EERE]

    Activities Panel Discussion: 2010 SAE World Congress DOE Hydrogen and Fuel Cell Activities Panel Discussion: 2010 SAE World Congress Presentation by Sunita Satyapal at the 2010...

  14. Report on discussions with utility engineers about superconducting generators

    SciTech Connect (OSTI)

    none,

    1996-03-01T23:59:59.000Z

    This report relates to a series of discussions with electric utility engineers concerning the integration of high-temperature superconducting (HTS) generators into the present electric power system. The current and future interest of the utilities in the purchase and use of HTS generators is assessed. Various performance and economic factors are also considered as part of this inspection of the utility prospects for HTS generators. Integration of HTS generators into the electric utility sector is one goal of the Superconductivity Partnership Initiative (SPI). The SPI, a major part of the Department of Energy (DOE) Superconductivity Program for Electric Systems, features vertical teaming of a major industrial power apparatus manufacturers, a producer of HTS wire, and an end-user with assistance and technical support for the national laboratories. The SPI effort on HTS generators is headed by a General Electric Corporation internal team comprised of the Corporate Research Laboratories, Power Generation Engineering, and Power Systems Group. Intermagnetics General corporation, which assisted in the development of the superconducting coils, is the HTS wire and tape manufacturer. Additional technical support is provided by the national laboratories: Argonne, Los Alamos, and Oak Ridge, and the New York State Institute on Superconductivity. The end-user is represented by Niagara-Mohawk and the Electric Power Research Institute.

  15. Combustion System Development for Medium-Sized Industrial Gas Turbines: Meeting Tight Emission Regulations while Using

    E-Print Network [OSTI]

    Ponce, V. Miguel

    Combustion System Development for Medium-Sized Industrial Gas Turbines: Meeting Tight Emission and the oil & gas industries. The combustion system used in Solar's products are discussed along- bility for the introduction of new combustion systems for gas turbine products to enhance fuel

  16. Pre-critical Chiral Fluctuations in Nuclear Medium -- precursors of chiral restoration at $?_{B}\

    E-Print Network [OSTI]

    T. Hatsuda; T. Kunihiro

    1999-02-26T23:59:59.000Z

    It is shown that an enhancement in the spectral function near 2$m_{\\pi}$ threshold in the I=J=0 channel is a good signal of the partial restoration of chiral symmetry in nuclear medium. Several experiments are discussed to detect the enhancement, which uses hadron-nucleus and photo-nucleus reactions.

  17. Ethanol Production, Distribution, and Use: Discussions on Key Issues (Presentation)

    SciTech Connect (OSTI)

    Harrow, G.

    2008-05-14T23:59:59.000Z

    From production to the environment, presentation discusses issues surrounding ethanol as a transportation fuel.

  18. SPAWNING AND SETTING OF OYSTERS IN LONG ISLAND SOUND IN 1937, AND DISCUSSION OF THE

    E-Print Network [OSTI]

    seed oysters transplanted to other waters, as well as their rapid growth in a new environment. Heavy. Do. Do. Medium. Heavy. Do. Do. Medium. Failure. Heavy. Medium. Year 190L __ __ . 1902 __ 1903

  19. Numerical simulations of the intergalactic medium

    E-Print Network [OSTI]

    Tom Theuns

    2002-09-05T23:59:59.000Z

    The intergalactic medium at redshifts 2--6 can be studied observationally through the absorption features it produces in the spectra of background quasars. Most of the UV-absorption lines arise in mildly overdense regions, which can be simulated reliably with current hydrodynamical simulations. Comparison of observed and simulated spectra allows one to put contraints on the model's parameters.

  20. What Does Self-Assessment of Safety Culture Look Like? Discussion from the Pantex Plant Perspective

    Broader source: Energy.gov [DOE]

    Presenter: Dr. Suzanne Helfinstine, Staff Engineer High Reliability Operations B&W Pantex Pantex Plant

  1. A Discussion of Conductivity Testing in High Temperature Membranes (lessons learned in assessing transport)

    Broader source: Energy.gov [DOE]

    Presentation on conductivity testing in high temperature membranes given by Jim Boncella of Los Alamos National Laboratory at the High Temperature Membrane Working Group meeting in October 2005.

  2. In-medium nucleon-nucleon cross-sections with non-spherical Pauli blocking

    E-Print Network [OSTI]

    L. White; F. Sammarruca

    2014-06-14T23:59:59.000Z

    We present a formalism to solve the Bethe-Goldstone scattering equation without the use of partial wave expansion which is alternative to the one we developed in a previous work. The present approach is more suitable for the calculation of in-medium nucleon-nucleon cross sections, which are the focal point of this paper. The impact of removing the spherical approximation on the angle and energy dependence of, particularly, in-medium proton-proton and proton-neutron differential cross sections is discussed along with its potential implication.

  3. UNECE TIMBER COMMITTEE Market Discussions, 3-4 October 2006

    E-Print Network [OSTI]

    , carbon and climate change #12;UNECE TIMBER COMMITTEE Market Discussions, 3-4 October 2006 Photo: NTC · Executive summaries available in English and Russia #12;UNECE TIMBER COMMITTEE Market Discussions, 3

  4. Subluminal and superluminal parametric doppler effects in the case of light reflection from a moving smooth medium inhomogeneity

    SciTech Connect (OSTI)

    Rozanov, N. N., E-mail: nrosanov@yahoo.com [Vavilov State Optical Institute (Russian Federation)

    2012-12-15T23:59:59.000Z

    The reflection of test radiation from a smooth inhomogeneity of medium characteristics propagating with a subluminal or superluminal velocity is analyzed. The equations describing the propagation of the forward- and counter-propagating waves in such an inhomogeneous medium are derived. Quasi-phase conjugation is demonstrated in the case of superluminal inhomogeneities. The Bragg resonance conditions are formulated and the conditions for increasing the reflection coefficient of radiation from an inhomogeneity are discussed.

  5. Analysis of ray stability and caustic formation in a layered moving fluid medium

    E-Print Network [OSTI]

    Bergman, David R

    2015-01-01T23:59:59.000Z

    Caustic formation occurs within a ray skeleton as optical or acoustic fields propagate in a medium with variable refractive properties and are unphysical, their presence being an artifact of the ray approximation of the field, and methods of correcting the field near a caustic are well known. Differential geometry provides a novel approach to calculating acoustic intensity, assessing ray stability and locating caustics in acoustic ray traces when the properties of medium are completely arbitrary by identifying points on the caustic with conjugate points along various rays. The method of geodesic deviation is applied to the problem of determining ray stability and locating caustics in 2-dimensional acoustic ray traces in a layered moving medium. Specifically, a general treatment of caustic formation in sound ducts and in piecewise continuous media is presented and applied to various idealized and realistic scenarios.

  6. PNNL Expert Alan Zacher Discusses Bio-Based Fuels

    SciTech Connect (OSTI)

    Alan Zacher

    2011-10-01T23:59:59.000Z

    Chemical Engineer Alan Zacher discusses the process for creating fuels from renewable sources in an efficient manner.

  7. PNNL Expert Alan Zacher Discusses Bio-Based Fuels

    ScienceCinema (OSTI)

    Alan Zacher

    2012-12-31T23:59:59.000Z

    Chemical Engineer Alan Zacher discusses the process for creating fuels from renewable sources in an efficient manner.

  8. Final Discussion | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Final Discussion Scientific User Facilities (SUF) Division SUF Home About User Facilities Projects Accelerator & Detector Research Science Highlights Principal Investigators'...

  9. LOCH: Planning for Open Access in REF - Discussion Points 

    E-Print Network [OSTI]

    Tate, Dominic; Aucock, Janet

    2015-03-19T23:59:59.000Z

    Slides and checklist from facilitated discussion session from ARMA Open Access Good Practice event (London 19-03-2015)....

  10. Gravity currents in a porous medium at an inclined plane

    E-Print Network [OSTI]

    Vella, D; Huppert, Herbert E.; Vella, Dominic

    2006-01-01T23:59:59.000Z

    We consider the release from a point source of relatively heavy fluid into a porous saturated medium above an impermeable slope. We consider the case where the volume of the resulting gravity current increases with time like $t^\\alpha$ and show that for $\\alpha3$, this situation is reversed with spreading occurring predominantly downslope for short times. The governing equations admit similarity solutions whose scaling behaviour we determine, with the full similarity form being evaluated by numerical computations of the governing partial differential equation. We find that the results of these analyses are in good quantitative agreement with a series of laboratory experiments. Finally, we briefly discuss the implications of our work for the sequestration of carbon dioxide in aquifers with a sloping, impermeable cap.

  11. Two-phase flow in a chemically active porous medium

    E-Print Network [OSTI]

    Alexandre Darmon; Michael Benzaquen; Thomas Salez; Olivier Dauchot

    2014-11-20T23:59:59.000Z

    We study the problem of the transformation of a given reactant species into an immiscible product species, as they flow through a chemically active porous medium. We derive the equation governing the evolution of the volume fraction of the species -- in a one-dimensional macroscopic description --, identify the relevant dimensionless numbers, and provide simple models for capillary pressure and relative permeabilities, which are quantities of crucial importance when tackling multiphase flows in porous media. We set the domain of validity of our models and discuss the importance of viscous coupling terms in the extended Darcy's law. We investigate numerically the steady regime and demonstrate that the spatial transformation rate of the species along the reactor is non-monotonous, as testified by the existence of an inflection point in the volume fraction profiles. We obtain the scaling of the location of this inflection point with the dimensionless lengths of the problem. Eventually, we provide key elements for optimization of the reactor.

  12. Nuclear structure studies with medium energy probes. [Northwestern Univ

    SciTech Connect (OSTI)

    Seth, Kamal K.

    1980-01-01T23:59:59.000Z

    Progress in the continuing program of experimental research in nuclear structure with medium-energy probes during the year 1979-1980 is reviewed, and the research activities planned for the year 1980-1981 are discussed. In the study of pion-induced reactions emphasis is placed on investigation of isovector characteristics of nuclear excitations and on double charge exchange reactions. Pion production studies form the major part of the program of experiments with proton beams of 400 to 800 MeV at LAMPF. Current emphasis is on the bearing of these investigations on di-baryon existence. The study of high-spin states and magnetic scattering constitute the main goals of the electron scattering program at Bates. Representative results are presented; completed work is reported in the usual publications. (RWR)

  13. The role of the Interstellar Medium in Galaxy Formation Simulations

    E-Print Network [OSTI]

    Greg L. Bryan

    2007-07-12T23:59:59.000Z

    There is a strong connection between the formation of a disk galaxy and the properties of the interstellar medium (ISM). Theoretical work has typically either focused on the cosmological buildup of a galaxy with a relatively crude model for the gas physics, or examined local processes in the ISM and ignored the global evolution of the galaxy itself. Here, I briefly review what has been learned from both of these approaches, and what can be done to bridge the gap between them. I argue that cosmological simulations need to learn from observational and theoretical work on local ISM properties and adopt more sophisticated models for the processes that they cannot resolve. Since the ISM is still incompletely understood, there are a number of reasonable approaches for these "subgrid" models, and I will discuss the strengths and limitations of each.

  14. Summary Notes from 28 May 2008 Generic Technical Issue Discussion...

    Office of Environmental Management (EM)

    radionuclide inventories for which the primary purpose is safety concerns such as corrosion, flammability or criticality as opposed to performance assessment may not provide...

  15. Brownian motor in a granular medium

    E-Print Network [OSTI]

    Riccardo Balzan; Fergal Dalton; Vittorio Loreto; Alberto Petri; Giorgio Pontuale

    2009-09-21T23:59:59.000Z

    In this work we experimentally study the behavior of a freely-rotating asymmetric probe immersed in a vibrated granular medium. For a wide variety of vibration conditions the probe exhibits a steady rotation whose direction is constant with respect to the asymmetry. By changing the vibration amplitude and by filtering the noise in different frequency bands we show that the velocity of rotation does not depend only on the RMS acceleration $\\Gamma$, but also on the amount of energy provided to two separate frequency bands which are revealed to be important for the dynamics of the granular medium: the first band governs the transfer of energy from the grains to the probe, and the second affects the dynamics by altering the viscosity of the vibro-fluidized material.

  16. Electromagnetic Radiation and in-Medium Effects

    E-Print Network [OSTI]

    Ralf Rapp

    2005-03-14T23:59:59.000Z

    The theory of thermal photon and dilepton emission from a hot and dense hadronic gas, as well as from the Quark-Gluon Plasma, is reviewed in the context of extracting in-medium properties of the matter constituents. In phenomenological applications to ultrarelativistic heavy-ion collisions we focus on recent photon and dilepton spectra as measured by WA98 and CERES/NA45, respectively, at CERN-SPS energies.

  17. Exploring medium effects on the nuclear force

    SciTech Connect (OSTI)

    F. Sammarruca

    2004-04-18T23:59:59.000Z

    This STI product contains a description of results from theoretical studies in nuclear physics. The goal is a systematic investigation of the nuclear force in the nuclear medium. The problems addressed are: density-dependent effective interactions as seen through proton-nucleus reactions, nuclear matter with unequal densities of protons and neutrons, applications to asymmetric nuclei through predictions of neutron radii and neutron skins.

  18. Cosmic Minivoids in the Intergalactic Medium

    E-Print Network [OSTI]

    Avery Meiksin

    1996-11-01T23:59:59.000Z

    The Gunn-Peterson effect, absorption of Lya photons by a homogeneous component of the intergalactic medium (IGM), potentially provides a test of Big Bang Nucleosynthesis (BBN). With a lower limit on the UV radiation field estimated from the contribution due to QSOs, a measurement of the Lya opacity of the intergalactic medium would permit the derivation of a lower bound to the baryonic density of the universe. The effect, however, has continually eluded a convincing detection, both in HI and HeII, despite extensive searches. Recent cosmological hydrodynamical simulations of structure formation in the intergalactic medium suggest an explanation for its absence. In a Cold Dark Matter dominated cosmology, the fragmentation of the baryons is nearly complete, leaving a negligible remnant to comprise a smoothly distributed component. The fragmentation extends even into regions that are underdense, where it gives rise to most of the optically thin HI systems and nearly all of the HeII systems, both thin and saturated. The result is a Lya opacity from a smooth IGM that is suppressed by over two orders of magnitude from the BBN value.

  19. Collisional parton energy loss in a finite size QCD medium revisited: Off mass-shell effects

    E-Print Network [OSTI]

    Alejandro Ayala; J. Magnin; Luis Manuel Montano; Eduardo Rojas

    2008-03-25T23:59:59.000Z

    We study the collisional energy loss mechanism for particles produced off mass-shell in a finite size QCD medium. The off mass-shell effects introduced are to consider particles produced in wave packets instead of plane waves and the length scale associated to an in-medium particles' life-time. We show that these effects reduce the energy loss as compared to the case when the particles are described as freely propagating from the source. The reduction of the energy loss is stronger as this scale becomes of the order or smaller than the medium size. We discuss possible consequences of the result on the description of the energy loss process in the parton recombination scenario.

  20. Analysis of energy-efficiency investment decisions by small and medium-sized manufacturers

    SciTech Connect (OSTI)

    Woodruff, M.G.; Roop, J.M.; Seely, H.E. [Pacific Northwest National Lab., Richland, WA (United States); Muller, M.R. [Rutgers--the State Univ., New Brunswick, NJ (United States); Jones, T.W. [Alliance to Save Energy, Washington, DC (United States); Dowd, J. [USDOE, Washington, DC (United States)

    1996-05-01T23:59:59.000Z

    This report highlights the results of a comprehensive analysis of investment decisions regarding energy-efficiency measures at small and medium-sized manufacturing plants. The analysis is based on the experiences of companies participating in the DOE Industrial Assessment Center (IAC) program. The IAC program is a network of university-based centers that provides energy and waste assessments to small and medium-sized manufacturing plants. The purposes of this report are to do the following: (1) Examine what the data collected reveal about patterns of implementation of recommended energy- efficiency measures, (2) Evaluate how various factors, such as the type of industry, the characteristics of the manufacturing plants, or the cost of the measures, appear to effect implementation rates, (3) Examine reasons why recommended energy-saving measures are accepted or rejected.

  1. Panel Discussion: New Directions in Human Reliability Analysis for Oil & Gas, Cybersecurity, Nuclear, and Aviation

    SciTech Connect (OSTI)

    Harold S. Blackman; Ronald Boring; Julie L. Marble; Ali Mosleh; Najmedin Meshkati

    2014-10-01T23:59:59.000Z

    This panel will discuss what new directions are necessary to maximize the usefulness of HRA techniques across different areas of application. HRA has long been a part of Probabilistic Risk Assessment in the nuclear industry as it offers a superior standard for risk-based decision-making. These techniques are continuing to be adopted by other industries including oil & gas, cybersecurity, nuclear, and aviation. Each participant will present his or her ideas concerning industry needs followed by a discussion about what research is needed and the necessity to achieve cross industry collaboration.

  2. US, UK, France Discuss Stockpile Stewardship, Arms Control and...

    National Nuclear Security Administration (NNSA)

    UK, France Discuss Stockpile Stewardship, Arms Control and Nonproliferation and Visit the Nevada National Security Site | National Nuclear Security Administration Facebook Twitter...

  3. What's Next for Nuclear Energy? MIT Students Discuss Path Forward

    Broader source: Energy.gov [DOE]

    Students at Massachusetts Institute of Technology (MIT) gathered Friday to have a casual discussion with the U.S. government’s foremost expert on nuclear energy

  4. Deputy Secretary Elizabeth Sherwood-Randall Discusses Importance...

    Office of Environmental Management (EM)

    Jeh Johnson, Deputy Secretary Sherwood-Randall discussed building upon the work of the Electricity Sub-Sector Coordinating Council (ESCC), and the importance of expanding and...

  5. Session 6 - Environmentally Concerned Public Sector Panel Discussion...

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

    "The Light-Duty Diesel In America?" Session 6 - Environmentally Concerned Public Sector Panel Discussion "The Light-Duty Diesel In America?" 2003 DEER Conference...

  6. TODAY: Senior Obama Administration Officials to Discuss Progress...

    Energy Savers [EERE]

    Wakarusa, Indiana, factory and is powered by an advanced battery manufactured in Michigan by another Recovery Act recipient, A123 Systems. WHAT: Conference call to discuss...

  7. Wave scattering by small particles in a medium

    E-Print Network [OSTI]

    A. G. Ramm

    2007-02-14T23:59:59.000Z

    Wave scattering is considered in a medium in which many small particles are embedded. Equations for the effective field in the medium are derived when the number of particles tends to infinity.

  8. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

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

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis 2012 DOE Hydrogen and Fuel Cells Program...

  9. List of Topics for Interagency Performance & Risk Assessment...

    Energy Savers [EERE]

    List of Topics for Interagency Performance & Risk Assessment Community of Practice (P&RA CoP) Discussion List of Topics for Interagency Performance & Risk Assessment Community of...

  10. Discussion Paper No. 2013-12 Maria Montero, Alex

    E-Print Network [OSTI]

    Aickelin, Uwe

    Discussion Paper No. 2013-12 Maria Montero, Alex Possajennikov, Martin Sefton and Theodore Turocy.nottingham.ac.uk/cedex/publications/discussion-papers/index.aspx #12;1 Majoritarian Contests with Asymmetric Battlefields: An Experiment1 Maria Montero2 University at the University of East Anglia. 2 Corresponding author. Contact details: maria.montero@nottingham.ac.uk 3 Contact

  11. 7Emissions Trading Workshop Summary Report Discussion Synthesis

    E-Print Network [OSTI]

    7Emissions Trading Workshop Summary Report Discussion Synthesis Background On April 30, 2010, more than 70 people gathered for an all-day workshop on emissions trading at Purdue University's Discovery of different emission trading proposals. The need for such discussion is great. Pollution trading is a high

  12. For discussion purposes only Biofuel and Poverty Nexus

    E-Print Network [OSTI]

    For discussion purposes only Biofuel and Poverty Nexus in Asia 13th Poverty and Environment Partnership Meeting Myo Thant Manila, 11 June 2008 #12;For discussion purposes only Interest in Biofuels has and policies · Number of countries · Different biofuel feedstock · Research on second generation technology #12

  13. Discussion of ``Atmospheric Momentum Roughness Applied to Stage-Discharge

    E-Print Network [OSTI]

    the Darcy-Weisbach equation and conventional log law and derive an alternative log law equation to calculate discussion. Concerning the resistance equations, if their Eq. 2 holds, the Darcy-Weisbach friction factor f equation and the selection of appropriate roughness param- eters. They discuss the merits of different

  14. HH IRP Discussion Paper No. 1419-14

    E-Print Network [OSTI]

    Schulte, Mike

    HH IRP Discussion Paper No. 1419-14 Post-1970 Trends in Within-Country Inequality and Poverty: Rich of a particular area of research. We examine the literature on post-1970 trends in poverty and income inequality of these areas, as well as an integrated discussion of empirical choices made in the measurement of poverty

  15. Jitter-based analysis and discussion of burst assembly algorithms

    E-Print Network [OSTI]

    Aracil, Javier

    Jitter-based analysis and discussion of burst assembly algorithms Javier Aracil, Jos´e Alberto Hern a jitter analysis of size-based burst assembly algorithms and also discusses other burst assem- bly algorithms that use the packet delay as the assembly threshold to provide a bound on jitter. Index Terms

  16. Security Issues in Data Warehousing and Data Mining: Panel Discussion

    E-Print Network [OSTI]

    Lin, Tsau Young

    and mining. Position by Linda Schlipper For most enterprises there is no shortage of data. Operational dataSecurity Issues in Data Warehousing and Data Mining: Panel Discussion Bhavani Thuraisingham Corporation Abstract This paper describes the panel discussion on data warehousing, data mining and security

  17. The Enrichment of the Intracluster Medium

    E-Print Network [OSTI]

    Brad K. Gibson; Francesca Matteucci

    1996-12-13T23:59:59.000Z

    The enrichment of the intracluster medium (ICM) of galaxy clusters, within the framework of the supernovae-driven wind model for elliptical galaxies, has been considered under two extreme assumptions regarding the binding energy-mass-radius relations. Unless the binding energy at the time of wind commencement, for a given galactic mass, was a factor of approximately five lower than that predicted by the present-day relation, at most 20% of the ICM gas could have originated within the cluster ellipticals themselves, the remainder being of primordial origin.

  18. Category:MediumOffice | Open Energy Information

    Open Energy Info (EERE)

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

  19. Guidelines for Assessing the Feasibility of Small Cogeneration Systems

    E-Print Network [OSTI]

    Whiting, M., Jr.

    1984-01-01T23:59:59.000Z

    , hospitals, colleges, and shopping centers. This paper will present guidelines for assessing the feasibility of cogeneration for small to medium sized energy users, and it will describe the commercially available technologies that can be utilized....

  20. Assessing the assessments: Pharmaceuticals in the environment

    SciTech Connect (OSTI)

    Enick, O.V. [Department of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6 (Canada)], E-mail: oana.enick@gov.bc.ca; Moore, M.M. [Department of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6 (Canada)], E-mail: mmoore@sfu.ca

    2007-11-15T23:59:59.000Z

    The relatively new issue of pharmaceutical contamination of the environment offers the opportunity to explore the application of values to the construction, communication and management of risk. The still-developing regulatory policies regarding environmental contamination with pharmaceuticals provide fertile ground for the introduction of values into the definition and management of risk. In this report, we summarize the current knowledge regarding pharmaceutical contamination of the environment and discuss specific attributes of pharmaceuticals that require special consideration. We then present an analysis showing that if values are incorporated into assessing, characterizing and managing risk, the results of risk assessments will more accurately reflect the needs of various stakeholders. Originating from an acknowledgement of the inherent uncertainty and value-laden nature of risk assessment, the precautionary principle (and later, the multi-criteria, integrated risk assessment), provides a direction for further research and policy development.

  1. PNNL Expert Doug McMakin Discusses Millimeter Wave Technology

    ScienceCinema (OSTI)

    Doug McMakin

    2012-12-31T23:59:59.000Z

    Electrical Engineer Doug McMakin discusses Millimeter Wave Holographic technology, which uses non-harmful, ultrahigh-frequency radio waves to penetrate clothing to detect and identify concealed objects, as well as obtain accurate body measurements.

  2. GE Software Expert Julian Keith Loren Discusses Innovation and...

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

    GE Software Expert Julian Keith Loren Discusses Innovation and the Industrial Internet Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window)...

  3. Panel Discussion: Career Paths in Energy & Sustainability: Perspective...

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

    a.m.-7 p.m. The events include: 11:30 a.m.-2 p.m. Panel Discussion "Career Paths in Energy & Sustainability: Perspectives from Successful Women Professionals," including Dr....

  4. Jet Quenching in Evolving QGP Medium

    E-Print Network [OSTI]

    Sangyong Jeon

    2009-09-25T23:59:59.000Z

    A short summary of different approaches to the parton energy loss problem is given. A particular attention is paid to the differences between various models. A possible solution to the problem of distinguishing competing approaches is discussed.

  5. Erosion dynamics of a wet granular medium

    E-Print Network [OSTI]

    Gautier Lefebvre; Pierre Jop

    2014-12-08T23:59:59.000Z

    Liquid may give strong cohesion properties to a granular medium, and confer a solid-like behavior. We study the erosion of a fixed circular aggregate of wet granular matter subjected to a flow of dry grains inside a half-filled rotating drum. During the rotation, the dry grains flow around the fixed obstacle. We show that its diameter decreases linearly with time for low liquid content, as wet grains are pulled-out of the aggregate. This erosion phenomenon is governed by the properties of the liquids. The erosion rate decreases exponentially with the surface tension while it depends on the viscosity to the power -1. We propose a model based on the force fluctuations arising inside the flow, explaining both dependencies: the capillary force acts as a threshold and the viscosity controls the erosion time scale. We also provide experiments using different flowing grains confirming our model.

  6. Double hadron leptoproduction in the nuclear medium

    E-Print Network [OSTI]

    Airapetian, A; Akopov, Z; Amarian, M; Andrus, A; Aschenauer, E C; Augustyniak, W; Avakian, R; Avetisian, A; Avetissian, E; Bailey, P; Belostotskii, S; Bianchi, N; Blok, H P; Böttcher, Helmut B; Borisov, A; Borysenko, A; Brüll, A; Bryzgalov, V; Capiluppi, M; Capitani, G P; Ciullo, G; Contalbrigo, M; Dalpiaz, P F; Deconinck, W; De Leo, R; Demey, M; De Nardo, L; De Sanctis, E; Devitsin, E G; Diefenthaler, M; Di Nezza, P; Dreschler, J; Düren, M; Ehrenfried, M; Elalaoui-Moulay, A; Elbakian, G; Ellinghaus, F; Elschenbroich, U; Fabbri, R; Fantoni, A; Felawka, L; Frullani, S; Funel, A; Gapienko, G; Gapienko, V; Garibaldi, F; Garrow, K; Gavrilov, G; Karibian, V; Giordano, F; Grebenyuk, O; Gregor, I M; Griffioen, K; Guler, H; Hadjidakis, C; Hartig, M; Hasch, D; Hasegawa, T; Hesselink, W H A; Hillenbrand, A; Hoek, M; Holler, Y; Hommez, B; Hristova, I; Iarygin, G; Ivanilov, A; Izotov, A; Jackson, H E; Jgoun, A; Kaiser, R; Keri, T; Kinney, E; Kiselev, A; Kobayashi, T; Kopytin, M; Korotkov, V; Kozlov, V; Krauss, B; Kravchenko, P; Krivokhizhin, V G; Lagamba, L; Lapikas, L; Lenisa, P; Liebing, P; Linden-Levy, L A; Lorenzon, W; Lü, J; Lu, S; Ma, B Q; Maiheu, B; Makins, N C R; Mao, Y; Marianski, B; Marukyan, H; Masoli, F; Mexner, V; Meyners, N; Michler, T; Miklukho, O; Miller, C A; Miyachi, Y; Muccifora, V; Murray, M; Nagaitsev, A; Nappi, E; Naryshkin, Yu; Negodaev, M; Nowak, Wolf-Dieter; Ohsuga, H; Osborne, A; Perez-Benito, R; Pickert, N; Raithel, M; Reggiani, D; Reimer, P E; Reischl, A; Reolon, A R; Riedl, C; Rith, K; Rosner, G; Rostomyan, A; Rubacek, L; Rubin, J; Ryckbosch, D; Salomatin, Y; Sanjiev, I; Savin, I; Schäfer, A; Schnell, G; Schüler, K P; Seele, J; Seidl, R; Seitz, B; Shearer, C; Shibata, T A; Shutov, V; Sinram, K; Stancari, M; Statera, M; Steffens, E; Steijger, J J M; Stenzel, H; Stewart, J; Stinzing, F; Streit, J; Tait, P; Tanaka, H; Taroian, S P; Tchuiko, B; Terkulov, A R; Trzcinski, A; Tytgat, M; Vandenbroucke, A; Van der Nat, P B; van der Steenhoven, G; Van Haarlem, Y; Veretennikov, D; Vikhrov, V; Vogel, C; Wang, S; Ye, Y; Ye, Z; Yen, S; Zihlmann, B; Zupranski, P

    2006-01-01T23:59:59.000Z

    First measurement of double-hadron production in deep-inelastic scattering has been measured with the HERMES spectrometer at HERA using a 27.6 GeV positron beam with deuterium, nitrogen, krypton and xenon targets. The influence of the nuclear medium on the ratio of double-hadron to single-hadron yields has been investigated. Nuclear effects are clearly observed but with substantially smaller magnitude and reduced $A$-dependence compared to previously measured single-hadron multiplicity ratios. The data are in fair agreement with models based on partonic or pre-hadronic energy loss, while they seem to rule out a pure absorptive treatment of the final state interactions. Thus, the double-hadron ratio provides an additional tool for studying modifications of hadronization in nuclear matter.

  7. Utility View of Risk Assessment

    E-Print Network [OSTI]

    Bickham, J.

    This paper will address a utility perspective in regard to risk assessment, reliability, and impact on the utility system. Discussions will also include the critical issues for utilities when contracting for energy and capacity from cogenerators...

  8. LANL Researcher Roger Wiens Discusses ChemCam

    ScienceCinema (OSTI)

    Wiens, Roger

    2014-08-12T23:59:59.000Z

    Discussion of the ChemCam instrument on the Curiosity Rover that occurred during the NASA press conference prior to launch of the Mars Science Laboratory. The ChemCam instrument was developed by Los Alamos National Laboratory and the French Space Institute. Los Alamos National Laboratory researcher Roger Wiens discusses the instrument on this video. ChemCam uses a laser to "zap" features of the Martian landscape and then uses a spectrometer to gather information about the composition of the sample. ChemCam will help the Curiosity Rover determine whether Mars is or was habitable. The Rover is expected to touch down on the Red Planet on August 5, 2012.

  9. A Discussion on the Classifier Projection Space for Classifier Combining

    E-Print Network [OSTI]

    Duin, Robert P.W.

    . Such a space of a low dimensionality is a Classifier Projection Space (CPS). In the first instance, it is used. This is illustrated by some examples. In the end, we discuss how the CPS may also be used as a basis for constructing to essentially different solutions. The concept of diversity is, thereby, crucial [9]. There are various ways

  10. LANL physicists discuss electrical grid in journal article

    E-Print Network [OSTI]

    - 1 - LANL physicists discuss electrical grid in journal article October 17, 2013 Electrical grids of distribution grids. Revolutionary changes to the electric grid will lead to grids that are more random that could make a major impact on the future grid: · probabilistic measures of electrical grid reliability

  11. Discussion Papers in Individual and Group Learning in Crisis Simulations

    E-Print Network [OSTI]

    Discussion Papers in Management Individual and Group Learning in Crisis Simulations Edward-5 January 2002 ISSN 1356-3548 #12;2 Individual and Group Learning in Crisis Simulations Edward Borodzicz1 learning. The issue is raised that simulation exercises may concentrate learning outcomes for exercise

  12. Higgs Boson Digest and Discussion By Tony O'Hagan

    E-Print Network [OSTI]

    O'Hagan, Tony

    Higgs Boson ­ Digest and Discussion By Tony O'Hagan Introduction On July 10th 2012, I posted to consult this list in search of answers. We've heard a lot about the Higgs boson. The news reports say like (in the sense of having some of the right characteristics of) the elusive Higgs boson

  13. Discussion on Agricultural Econometrics: Its History and Its Future

    E-Print Network [OSTI]

    McCarl, Bruce A.

    Discussion on Agricultural Econometrics: Its History and Its Future David A. Bessler Texas A&M UniversityTexas A&M University AAEA Session on History of Econometrics1 Denver, Colorado Tuesday, July 27 Concerns · Partial Answers (Instrumental Variables) · Cautions · Revolution in Econometrics · Mopping

  14. ERIA-DP-2011-03 ERIA Discussion Paper Series

    E-Print Network [OSTI]

    ERIA-DP-2011-03 ERIA Discussion Paper Series Harmonizing Biodiesel Fuel Standards in East Asia Asia (ERIA), Indonesia Shinichi GOTO Research Center for New Fuels and Vehicle Technology (NFV), National Institute of Advanced Industrial Science and Technology (AIST), Japan May 2011 Abstract

  15. TI 2013-055/III Tinbergen Institute Discussion Paper

    E-Print Network [OSTI]

    Chen, Yiling

    TI 2013-055/III Tinbergen Institute Discussion Paper Parallel Sequential Monte Carlo for Efficient Density Combination: The Deco Matlab Toolbox Roberto Casarin1 Stefano Grassi2 Francesco Ravazzolo3 Herman Mahlerplein 117 1082 MS Amsterdam The Netherlands Tel.: +31(0)20 525 8579 #12;PARALLEL SEQUENTIAL MONTE CARLO

  16. BUDGET ADVISORY COMMITTEE DISCUSSION PAPER ON THE OPERATING BUDGET

    E-Print Network [OSTI]

    Brownstone, Rob

    BUDGET ADVISORY COMMITTEE DISCUSSION PAPER ON THE OPERATING BUDGET PLAN FOR 2013-14 REPORT XLIX January 10, 2013 #12;The Budget Advisory Committee (BAC) was established by the President in 1992, and Susan Robertson, Director, Budgets and Financial Analysis. The Committee employs an open

  17. Utility of Social Modeling for Proliferation Assessment - Preliminary Assessment

    SciTech Connect (OSTI)

    Coles, Garill A.; Gastelum, Zoe N.; Brothers, Alan J.; Thompson, Sandra E.

    2009-06-01T23:59:59.000Z

    This Preliminary Assessment draft report will present the results of a literature search and preliminary assessment of the body of research, analysis methods, models and data deemed to be relevant to the Utility of Social Modeling for Proliferation Assessment research. This report will provide: 1) a description of the problem space and the kinds of information pertinent to the problem space, 2) a discussion of key relevant or representative literature, 3) a discussion of models and modeling approaches judged to be potentially useful to the research, and 4) the next steps of this research that will be pursued based on this preliminary assessment. This draft report represents a technical deliverable for the NA-22 Simulations, Algorithms, and Modeling (SAM) program. Specifically this draft report is the Task 1 deliverable for project PL09-UtilSocial-PD06, Utility of Social Modeling for Proliferation Assessment. This project investigates non-traditional use of social and cultural information to improve nuclear proliferation assessment, including nonproliferation assessment, proliferation resistance assessments, safeguards assessments and other related studies. These assessments often use and create technical information about the State’s posture towards proliferation, the vulnerability of a nuclear energy system to an undesired event, and the effectiveness of safeguards. This project will find and fuse social and technical information by explicitly considering the role of cultural, social and behavioral factors relevant to proliferation. The aim of this research is to describe and demonstrate if and how social science modeling has utility in proliferation assessment.

  18. Nuclear thermodynamics and the in-medium chiral condensate

    E-Print Network [OSTI]

    Salvatore Fiorilla; Norbert Kaiser; Wolfram Weise

    2012-04-19T23:59:59.000Z

    The temperature dependence of the chiral condensate in isospin-symmetric nuclear matter at varying baryon density is investigated using thermal in-medium chiral effective field theory. This framework provides a realistic approach to the thermodynamics of the correlated nuclear many-body system and permits calculating systematically the pion-mass dependence of the free energy per particle. One- and two-pion exchange processes, $\\Delta(1232)$-isobar excitations, Pauli blocking corrections and three-body correlations are treated up to and including three loops in the expansion of the free energy density. It is found that nuclear matter remains in the Nambu-Goldstone phase with spontaneously broken chiral symmetry in the temperature range $T\\lesssim 100\\,$MeV and at baryon densities at least up to about twice the density of normal nuclear matter, $2\\rho_0 \\simeq 0.3\\, $fm$^{-3}$. Effects of the nuclear liquid-gas phase transition on the chiral condensate at low temperatures are also discussed.

  19. Pseudo-scalar photon mixing in a magnetized medium

    SciTech Connect (OSTI)

    Ganguly, Avijit K. [Haldia Institute of Technology, Indian Center for Advancement of Research and Education Complex, Haldia 721657 (India)]. E-mail: avijitk@hotmail.com

    2006-06-15T23:59:59.000Z

    Axions are pseudo-scalar particles, those which arise because of breaking of Peccei Queen (PQ) symmetry. Axions have a tree level coupling to two photons. As a consequence there exists a tree level coupling of axion to photon in a magnetic field. However, in an external magnetic field, there exists a new loop induced, axion photon vertex that gives rise to axion photon coupling. The strength of the tree level axion photon coupling in magnetic field is known to be model dependent. However, in a magnetic field, the new loop induced coupling has some interesting features. This note discusses the new axion photon vertex in a magnetized medium and the corrections arising from there. The magnitude of the correction to axion photon coupling, because of magnetized vacuum and matter, is estimated in this note. While making this estimate we note that the form of the axion photon vertex is related to the axial polarization tensor. This vertex is shown to satisfy the Ward identity. The coupling is shown to have a momentum dependent piece in it. Astrophysical importance of this extra modification is also pointed out.

  20. Submerged Medium Voltage Cable Systems at Nuclear Power Plants...

    Office of Scientific and Technical Information (OSTI)

    Submerged Medium Voltage Cable Systems at Nuclear Power Plants: A Review of Research Efforts Relevant to Aging Mechanisms and Condition Monitoring. Re-direct Destination: In a...

  1. Vehicle Technologies Office Issues Notice of Intent for Medium...

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

    Vehicle Technologies Office Issues Notice of Intent for Medium and Heavy-Duty Vehicle Demonstration Funding Opportunity Vehicle Technologies Office Issues Notice of Intent for...

  2. Statistical Characterization of Medium-Duty Electric Vehicle...

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

    new EVs. Within the medium- and heavy-duty commercial vehicle segment, both the Smith Electric Newton and Navistar eStar vehicles qualified for such funding opportunities....

  3. Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration...

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

    arravt068vssmiyasato2011o .pdf More Documents & Publications SCAQMD:Plug-In Hybrid Electric Medium-Duty Commercial Fleet Demonstration and Evaluation Plug-In Hybrid...

  4. acid medium application: Topics by E-print Network

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

    University - TxSpace Summary: substrate and their catalytic function takes place in acid medium. This harsh environment causes an undesired reaction, which is the dissolution of...

  5. acid aqueous medium: Topics by E-print Network

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

    transfer radical polymerization technique ... Yao, Jia 3 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  6. air dense medium: Topics by E-print Network

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

    and X-ray afterglows. Explanations of this behavior include models invoking a dense medium environment which makes the shock wave evolve quickly into the sub-relativistic...

  7. acidic aqueous medium: Topics by E-print Network

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

    transfer radical polymerization technique ... Yao, Jia 3 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  8. adaptive medium access: Topics by E-print Network

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

    cost reduction of wireless technologies, ITS is finding favour, transport efficiency and environment concerns. However, the vehicular network applications require a medium...

  9. Light Vector Mesons in the Nuclear Medium

    E-Print Network [OSTI]

    M. H. Wood; R. Nasseripour; D. P. Weygand; C. Djalali; C. Tur; U. Mosel; P. Muehlich; CLAS Collaboration

    2008-03-04T23:59:59.000Z

    The light vector mesons ($\\rho$, $\\omega$, and $\\phi$) were produced in deuterium, carbon, titanium, and iron targets in a search for possible in-medium modifications to the properties of the $\\rho$ meson at normal nuclear densities and zero temperature. The vector mesons were detected with the CEBAF Large Acceptance Spectrometer (CLAS) via their decays to $e^{+}e^{-}$. The rare leptonic decay was chosen to reduce final-state interactions. A combinatorial background was subtracted from the invariant mass spectra using a well-established event-mixing technique. The $\\rho$ meson mass spectrum was extracted after the $\\omega$ and $\\phi$ signals were removed in a nearly model-independent way. Comparisons were made between the $\\rho$ mass spectra from the heavy targets ($A > 2$) with the mass spectrum extracted from the deuterium target. With respect to the $\\rho$-meson mass, we obtain a small shift compatible with zero. Also, we measure widths consistent with standard nuclear many-body effects such as collisional broadening and Fermi motion.

  10. Discussions on the Cancellation Effect on a Curved Orbit

    SciTech Connect (OSTI)

    Rui Li; Ya. S. Derbenev

    2005-05-16T23:59:59.000Z

    The canonical formulation and the cancellation effect for bunch dynamics under collective interaction on a curved orbit were presented in Ref. [*]. Some possible controversial representations of the cancellation effect were later addressed by Geloni et al.** In this study, we discuss all the points raised in Ref. [**] based on our canonical treatment, and show how these points can be perceived from the view point of the cancellation picture.

  11. GE Scientist Stephan Biller Discusses the Industrial Internet | GE Global

    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 Science (SC) Environmental AssessmentsGeoffrey Campbell isOklahoma City, USA

  12. GE Software Expert Julian Keith Loren Discusses Innovation and the

    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 Science (SC) Environmental AssessmentsGeoffrey Campbell isOklahoma City, USAGE BBQ Center is

  13. Navier-Stokes equation describes the movement of a special superfluid medium

    E-Print Network [OSTI]

    Sbitnev, Valeriy I

    2015-01-01T23:59:59.000Z

    The Navier-Stokes equation contains two terms which have been subjected to slight modification: (a) the viscosity term depends of time (the viscosity in average on time is zero, but its variance is nonzero); (b) the pressure gradient contains an added term describing the entropy gradient multiplied by the pressure. Owing to these modifications, the Navier-Stokes equation can be reduced to the Schr\\"odinger equation describing behavior of a particle into the vacuum, where the vacuum is a superfluid medium. Vortex structures arising in this medium show infinitely long life owing to zero average viscosity. The nonzero variance describes exchange of the vortex energy with zero-point energy of the vacuum. Radius of the vortex trembles around some average value. This observation sheds the light to the Zitterbewegung phenomenon. The vortex has a non-zero core where the vortex velocity vanishes. Its organization is discussed with the point of view of the Calabi-Yau manifold.

  14. BUSINESS CONTINUITY PLANNING RESOURCES FOR SMALL-AND MEDIUM-

    E-Print Network [OSTI]

    BUSINESS CONTINUITY PLANNING RESOURCES FOR SMALL- AND MEDIUM- SIZED BUSINESSES May 2010 Prepared and supported by the Northwest Regional Technology Center for Homeland Security Business Continuity Planning Resources for Small- and Medium- Sized Businesses KS Judd AM Lesperance May 14, 2010 #12;DISCLAIMER

  15. Optical quantum swapping in a coherent atomic medium

    E-Print Network [OSTI]

    Aurelien Dantan

    2011-10-03T23:59:59.000Z

    We propose to realize a passive optical quantum swapping device which allows for the exchange of the quantum fluctuations of two bright optical fields interacting with a coherent atomic medium in an optical cavity. The device is based on a quantum interference process between the fields within the cavity bandwidth arising from coherent population trapping in the atomic medium.

  16. Ray Theory for a Locally Layered Random Medium G. Papanicolaou

    E-Print Network [OSTI]

    Papanicolaou, George C.

    variations in the medium parameters. The pulse is generated by a point source and the medium is modeled the source and the point of observation. The ray is determined by high frequency asymptotics (geometrical is motivated by wave propagation in sedimentary rock. Here the sedimentary cycles produce structures

  17. Invariant measures for a stochastic porous medium equation

    E-Print Network [OSTI]

    Röckner, Michael

    Invariant measures for a stochastic porous medium equation Giuseppe Da Prato (Scuola Normale AMS :76S05,35J25, 37L40 . 1 Introduction The porous medium equation X t = (Xm ), m N, (1 Brownian motion in H and C is a positive definite bounded operator on H of trace class. To be more concrete

  18. Theory of Neutron Noise in a Temporally Fluctuating Multiplying Medium

    E-Print Network [OSTI]

    Pázsit, Imre

    Theory of Neutron Noise in a Temporally Fluctuating Multiplying Medium Lénárd Pál KFKI Atomic, respec- tively. In this paper we develop a theory of neutron fluctuations in a medium randomly varying place in a time-varying environment. I. INTRODUCTION The theory of neutron fluctuations in multiplying

  19. AN ANALYSIS FOR A FORMULATION OF THE POROUS MEDIUM EQUATION

    E-Print Network [OSTI]

    Fadimba, Koffi B.

    a porous medium, with S the saturation of the invading fluid. In this model, one assumption (the wet phase and the dry phase) occupying entirely the pores of the medium, e.g. water and oil, so , we make the assumption that n = 0, (1..4) where n is the outward unit normal vector to the boundary

  20. Waste Heat Recovery Using a Circulating Heat Medium Loop

    E-Print Network [OSTI]

    Manning, E., Jr.

    1981-01-01T23:59:59.000Z

    by a circulating heat medium loop where waste heat is recovered for useful purposes. The heat medium chosen is turbine fuel. It is pumped around the refinery to pick up heat at the crude distilling unit, the hydrocracker, the catalytic cracker...

  1. Transformer Efficiency Assessment - Okinawa, Japan

    SciTech Connect (OSTI)

    Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

    2012-05-01T23:59:59.000Z

    The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

  2. Transformer Efficiency Assessment - Okinawa, Japan

    SciTech Connect (OSTI)

    Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

    2012-08-01T23:59:59.000Z

    The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

  3. President Obama Discusses Solar Power in Nevada | Department of Energy

    Office of Environmental Management (EM)

    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 1112011 Strategic2 OPAM615_CostNSAR - T enAmountCammieReserve |Geothermal and SolarDiscusses

  4. Live Discussion on Energy 101: Fuel Cells | Department of Energy

    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 Science (SC)Integrated Codes |Is Your HomeLatestCenter (LMI-EFRC) -ChoicesListLive Discussion on

  5. Open Discussion of Freeze Related Issues | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in ManyDepartment ofOil's Impact onDepartment of EnergyDiscussion of

  6. Portfolio Manager Space Type Discussion | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in235-1Department of60 DATE: MarchNEPA/309EnergySpace Type Discussion

  7. Audit Services Requirements Discussed In Guide Chapter 42.101-

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName4Services Requirements Discussed In Guide

  8. Yonath discusses visualizing ribosomes and antibiotic resistance | ornl.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhatY-12 recognized forCyclotronYonath discusses

  9. Open bottom mesons in hot asymmetric hadronic medium

    E-Print Network [OSTI]

    Divakar Pathak; Amruta Mishra

    2014-09-02T23:59:59.000Z

    The in-medium masses and optical potentials of $B$ and ${\\bar B}$ mesons are studied in an isospin asymmetric, strange, hot and dense hadronic environment using a chiral effective model. The chiral $SU(3)$ model originally designed for the light quark sector, is generalized to include the heavy quark sector ($c$ and $b$) to derive the interactions of the $B$ and $\\bar B$ mesons with the light hadrons. Due to large mass of bottom quark, we use only the empirical form of these interactions for the desired purpose, while treating the bottom degrees of freedom to be frozen in the medium. Hence, all medium effects are due to the in-medium interaction of the light quark content of these open-bottom mesons. Both $B$ and $\\bar B$ mesons are found to experience net attractive interactions in the medium, leading to lowering of their masses in the medium. The mass degeneracy of particles and antiparticles, ($B^+$, $B^-$) as well as ($B^0$, ${\\bar B}^0$), is observed to be broken in the medium, due to equal and opposite contributions from a vectorial Weinberg-Tomozawa interaction term. Addition of hyperons to the medium lowers further the in-medium mass for each of these four mesons, while a non-zero isospin asymmetry is observed to break the approximate mass degeneracy of each pair of isospin doublets. These medium effects are found to be strongly density dependent, and bear a considerably weaker temperature dependence. The results obtained in the present investigation are compared to predictions from the quark-meson coupling model, heavy meson effective theory, and the QCD Sum Rule approach.

  10. Full Useful Life (120,000 miles) Exhaust Emission Performance of a NOx Adsorber and Diesel Particle Filter Equipped Passenger Car and Medium-duty Engine in Conjunction with Ultra Low Sulfur Fuel (Presentation)

    SciTech Connect (OSTI)

    Thornton, M.; Tatur, M.; Tomazic, D.; Weber, P.; Webb, C.

    2005-08-25T23:59:59.000Z

    Discusses the full useful life exhaust emission performance of a NOx (nitrogen oxides) adsorber and diesel particle filter equipped light-duty and medium-duty engine using ultra low sulfur diesel fuel.

  11. The ING Instrumentation Conference Discussion, Options for a Competitive Observatory

    E-Print Network [OSTI]

    N. A. Walton; S. J. Smartt

    2000-08-10T23:59:59.000Z

    An expert panel initiated discussion on a number of key questions facing the role of 4-m and small telescopes in the new era of 8-m telescopes. The panel and audience agreed that the 4-m class telescope role would necessarily evolve, but would still be important in the coming years. The need for an active development programme of competitive instrumentation for 4-m class telescopes, and in particular the William Herschel Telescope (WHT) was stressed. In conjunction with this, the need to de-commission instrumentation made redundant by 8-m class telescopes was noted. New operational modes, including greater emphasis on survey programmes, and possibly queue scheduling, coupled with changes to the procedures for allocating time were seen as desirable. The panel and audience supported the Isaac Newton Group's emphasis on the development of instrumentation to exploit its imminent deployment of the WHT's facility Adaptive Optics system.

  12. A Pedagogical Discussion on Neutrino Wave-Packet Evolution

    E-Print Network [OSTI]

    Cheng-Hsien Li; Yong-Zhong Qian

    2014-04-04T23:59:59.000Z

    We present a pedagogical discussion on the time evolution of a Gaussian neutrino wave packet in free space. A common treatment is to keep momentum terms up to the quadratic order in the expansion of the energy-momentum relation so that the Fourier transform can be evaluated analytically via Gaussian integrals. This leads to a solution representing a flat Gaussian distribution with a constant longitudinal width and a spreading transverse width, which suggests that special relativity would be violated if the neutrino wave packet were detected on its edge. However, we demonstrate that by including terms of higher order in momentum the correct geometry of the wave packet is restored. The corrected solution has a spherical wave front so that it complies with special relativity.

  13. Enduring Nuclear Fuel Cycle, Proceedings of a panel discussion

    SciTech Connect (OSTI)

    Walter, C. E., LLNL

    1997-11-18T23:59:59.000Z

    The panel reviewed the complete nuclear fuel cycle in the context of alternate energy resources, energy need projections, effects on the environment, susceptibility of nuclear materials to theft, diversion, and weapon proliferation. We also looked at ethical considerations of energy use, as well as waste, and its effects. The scope of the review extended to the end of the next century with due regard for world populations beyond that period. The intent was to take a long- range view and to project, not forecast, the future based on ethical rationales, and to avoid, as often happens, long-range discussions that quickly zoom in on only the next few decades. A specific nuclear fuel cycle technology that could satisfy these considerations was described and can be applied globally.

  14. Metallicity of the Intergalactic Medium Using Pixel Statistics: I. Method

    E-Print Network [OSTI]

    Anthony Aguirre; Joop Schaye; Tom Theuns

    2002-07-04T23:59:59.000Z

    Studies of absorption spectra of high-z QSOs have revealed that the intergalactic medium at z ~ 2-3 is enriched to ~ 0.1%-1% solar for gas densities more than a few times the mean cosmic density, but have not yet produced an accurate metallicity estimate, nor constrained variations in the metallicity with density, redshift, or spatial location. This paper discusses the ``pixel optical depth'' (POD) method of QSO spectrum analysis, using realistic simulated spectra from cosmological simulations. In this method, absorption in Ly-alpha is compared to corresponding metal absorption on a pixel-by-pixel basis, yielding for each analyzed spectrum a single statistical correlation encoding metal enrichment information. Our simulations allow testing and optimization of each step of the technique's implementation. Tests show that previous studies have probably been limited by C IV self-contamination and O VI contamination by HI lines; we have developed and tested an effective method of correcting for both contaminants. We summarize these and other findings, and provide a useful recipe for the POD technique's application to observed spectra. Our tests reveal that the POD technique applied to spectra of presently available quality is effective in recovering useful metallicity information even in underdense gas. We present an extension of the POD technique to directly recover the intergalactic metallicity as a function of gas density. For a given ionizing background, both the oxygen and carbon abundance can be measured with errors of at most a factor of a few over at least an order of magnitude in density, using a single high-quality spectrum.

  15. Single Component Sorption-Desorption Test Experimental Design Approach Discussions

    SciTech Connect (OSTI)

    Phil WInston

    2011-09-01T23:59:59.000Z

    A task was identified within the fission-product-transport work package to develop a path forward for doing testing to determine behavior of volatile fission products behavior and to engage members of the NGNP community to advise and dissent on the approach. The following document is a summary of the discussions and the specific approaches suggested for components of the testing. Included in the summary isare the minutes of the conference call that was held with INL and external interested parties to elicit comments on the approaches brought forward by the INL participants. The conclusion was that an initial non-radioactive, single component test will be useful to establish the limits of currently available chemical detection methods, and to evaluated source-dispersion uniformity. In parallel, development of a real-time low-concentration monitoring method is believed to be useful in detecting rapid dispersion as well as desorption phenomena. Ultimately, the test cycle is expected to progress to the use of radio-traced species, simply because this method will allow the lowest possible detection limits. The consensus of the conference call was that there is no need for an in-core test because the duct and heat exchanger surfaces that will be the sorption target will be outside the main neutron flux and will not be affected by irradiation. Participants in the discussion and contributors to the INL approach were Jeffrey Berg, Pattrick Calderoni, Gary Groenewold, Paul Humrickhouse, Brad Merrill, and Phil Winston. Participants from outside the INL included David Hanson of General Atomics, Todd Allen, Tyler Gerczak, and Izabela Szlufarska of the University of Wisconsin, Gary Was, of the University of Michigan, Sudarshan Loyalka and Tushar Ghosh of the University of Missouri, and Robert Morris of Oak Ridge National Laboratory.

  16. Assessment Documents

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

    Assessments Operational Awareness Record, Waste Treatment and Immobilization Plant - March 2015

    The Office of Nuclear Safety and Environmental...

  17. A framework for combining social impact assessment and risk assessment

    SciTech Connect (OSTI)

    Mahmoudi, Hossein, E-mail: mahmoudi@uni-hohenheim.de [Department of Social Sciences in Agriculture, University of Hohenheim (Germany) [Department of Social Sciences in Agriculture, University of Hohenheim (Germany); Environmental Sciences Research Institute, Shahid Beheshti University, G.C. (Iran, Islamic Republic of); Renn, Ortwin [Department of Technology and Environmental Sociology (and DIALOGIK), University of Stuttgart (Germany)] [Department of Technology and Environmental Sociology (and DIALOGIK), University of Stuttgart (Germany); Vanclay, Frank [Department of Cultural Geography, Faculty of Spatial Sciences, University of Groningen, Groningen (Netherlands)] [Department of Cultural Geography, Faculty of Spatial Sciences, University of Groningen, Groningen (Netherlands); Hoffmann, Volker [Department of Social Sciences in Agriculture, University of Hohenheim (Germany)] [Department of Social Sciences in Agriculture, University of Hohenheim (Germany); Karami, Ezatollah [College of Agriculture, Shiraz University, Shiraz (Iran, Islamic Republic of)] [College of Agriculture, Shiraz University, Shiraz (Iran, Islamic Republic of)

    2013-11-15T23:59:59.000Z

    An increasing focus on integrative approaches is one of the current trends in impact assessment. There is potential to combine impact assessment with various other forms of assessment, such as risk assessment, to make impact assessment and the management of social risks more effective. We identify the common features of social impact assessment (SIA) and social risk assessment (SRA), and discuss the merits of a combined approach. A hybrid model combining SIA and SRA to form a new approach called, ‘risk and social impact assessment’ (RSIA) is introduced. RSIA expands the capacity of SIA to evaluate and manage the social impacts of risky projects such as nuclear energy as well as natural hazards and disasters such as droughts and floods. We outline the three stages of RSIA, namely: impact identification, impact assessment, and impact management. -- Highlights: • A hybrid model to combine SIA and SRA namely RSIA is proposed. • RSIA can provide the proper mechanism to assess social impacts of natural hazards. • RSIA can play the role of ex-post as well as ex-ante assessment. • For some complicated and sensitive cases like nuclear energy, conducting a RSIA is necessary.

  18. Enhanced growth medium and method for culturing human mammary epithelial cells

    DOE Patents [OSTI]

    Stampfer, Martha R. (7290 Sayre Dr., Oakland, CA 94611); Smith, Helene S. (5693 Cabot Dr., Oakland, CA 94611); Hackett, Adeline J. (82 Evergreen Dr., Orinda, CA 94563)

    1983-01-01T23:59:59.000Z

    Methods are disclosed for isolating and culturing human mammary epithelial cells of both normal and malignant origin. Tissue samples are digested with a mixture including the enzymes collagenase and hyaluronidase to produce clumps of cells substantially free from stroma and other undesired cellular material. Growing the clumps of cells in mass culture in an enriched medium containing particular growth factors allows for active cell proliferation and subculture. Clonal culture having plating efficiencies of up to 40% or greater may be obtained using individual cells derived from the mass culture by plating the cells on appropriate substrates in the enriched media. The clonal growth of cells so obtained is suitable for a quantitative assessment of the cytotoxicity of particular treatment. An exemplary assay for assessing the cytotoxicity of the drug adriamycin is presented.

  19. Discussion series on PURPA related topics: load management

    SciTech Connect (OSTI)

    Sturgeon, J I

    1980-08-01T23:59:59.000Z

    The Discussion Series on PURPA Related Topics is composed of five volumes: Metering, Billing, Information to Customers, Load Management Techniques and Master Metering. These reports are based on twenty-five Demonstration and Implementation projects sponsored and directed during the past five years by the US Department of Energy, Office of Utility Systems. Each of the topics bears directly on one or more of the federal standards contained in the Public Utilities Regulatory Policies Act of 1978 (PURPA). This volume, Load Management Techniques, relates primarily to the Time-of-Day rates standard, PURPA IB(d)3. The experiences related in this report deal, in part, with the procedures and equipment which are affected when time-of-day rates are implemented. One goal of this report is to describe how people in a variety of settings have dealt with the many practical issues in load management. Another is to highlight the lessons and summarize the experiences of the Project participants. This report does not stand as a manual nor provide prescriptive guidelines on how to deal with the topic. Rather it offers an account for those charged with the responsibility of implementing PURPA requirements to learn from the insights and problems which occurred during the Rate Demonstration projects.

  20. Assuring the Performance of Buildings and Infrastructures: Report of Discussions

    SciTech Connect (OSTI)

    Hunter, Regina L.

    1999-05-28T23:59:59.000Z

    How to ensure the appropriate performance of our built environment in the face of normal conditions, natural hazards, and malevolent threats is an issue of emerging national and international importance. As the world population increases, new construction must be increasingly cost effective and at the same time increasingly secure, safe, and durable. As the existing infrastructure ages, materials and techniques for retrofitting must be developed in parallel with improvements in design, engineering, and building codes for new construction. Both new and renovated structures are more often being subjected to the scrutiny of risk analysis. An international conference, "Assuring the Performance of Buildings and Infrastructures," was held in May 1997 to address some of these issues. The conference was co-sponsored by the Architectural Engineering Division of the American Society of Civil Engineers (ASCE), the American Institute of Architects, and Sandia National Laboratories and convened in Albuquerque, NM. Many of the papers presented at the conference are found within this issue of Techno20~. This paper presents some of the major conference themes and summarizes discussions not found in the other papers.

  1. Consequence Assessment

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-08-21T23:59:59.000Z

    This volume focuses on the process of performing timely initial assessments necessary to support critical first decisions and the continuous process of refining those initial assessments as more information and resources become available. Canceled by DOE G 151.1-4.

  2. Multiphase turbulent interstellar medium: some recent results from radio astronomy

    E-Print Network [OSTI]

    Roy, Nirupam

    2015-01-01T23:59:59.000Z

    The radio frequency 1.4 GHz transition of the atomic hydrogen is one of the important tracers of the diffuse neutral interstellar medium. Radio astronomical observations of this transition, using either a single dish telescope or an array interferometer, reveal different properties of the interstellar medium. Such observations are particularly useful to study the multiphase nature and turbulence in the interstellar gas. Observations with multiple radio telescopes have recently been used to study these two closely related aspects in greater detail. Using various observational techniques, the density and the velocity fluctuations in the Galactic interstellar medium was found to have a Kolmogorov-like power law power spectra. The observed power law scaling of the turbulent velocity dispersion with the length scale can be used to derive the true temperature distribution of the medium. Observations from a large ongoing atomic hydrogen absorption line survey have also been used to study the distribution of gas at d...

  3. Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration...

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

    Washington D.C. vssarravt068miyasato2010p.pdf More Documents & Publications Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and Evaluation SCAQMD:Plug-In...

  4. aqueous medium including: Topics by E-print Network

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

    19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  5. anisotropic porous medium: Topics by E-print Network

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

    outflows ... Germain, Joel; Martel, Hugo 2009-01-01 24 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  6. aqueous medium propriedades: Topics by E-print Network

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

    19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  7. aqueous medium promoted: Topics by E-print Network

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

    Chennakesava Reddy; Gudimella Santosh Kumar 2012-01-01 2 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  8. absorbing gaseous medium: Topics by E-print Network

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

    2001-01-01 17 Gravitational drag on a point mass in hypersonic motion through a gaseous medium CERN Preprints Summary: We explore a ballistic orbit model to infer the...

  9. areas medium sized: Topics by E-print Network

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

    8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 to Medium Sized Enterprises CiteSeer Summary: Knowledge Management has been identified as a...

  10. aqueous medium formacion: Topics by E-print Network

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

    19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  11. aqueous medium viewing: Topics by E-print Network

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

    19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  12. aqueous alkaline medium: Topics by E-print Network

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

    which is essential for the formation Sahai, Nita 2 Ultrasonic measurement of porous medium in an aqueous environment Texas A&M University - TxSpace Summary: August 1995 Major...

  13. Gluon Radiation off Massive Quarks in a QCD Medium

    E-Print Network [OSTI]

    N. Armesto; C. A. Salgado; U. A. Wiedemann

    2004-05-19T23:59:59.000Z

    Medium-induced gluon radiation from massless and massive quarks is treated in the same formalism. The dead cone which regulates gluon radiation from massive quarks in the vacuum at small angles, is filled in the medium but constitutes a small fraction of the available phase space. Our study indicates that the energy loss for charmed hadrons at RHIC should be smaller than for light hadrons, but still sizable.

  14. Lyman alpha Absorption Systems and the Intergalactic Medium

    E-Print Network [OSTI]

    George Efstathiou; Joop Schaye; Tom Theuns

    2000-04-10T23:59:59.000Z

    The last few years have seen a dramatic improvement in our understanding of the origin of Lyman alpha absorption systems. Hydrodynamic numerical simulations of cold dark matter dominated universes have shown that the many properties of the Lyman alpha absorption systems can be explained by a photoionized, space-filling, intergalactic medium. Lyman alpha lines offer promising probes of the photoionizing background, the amplitude of the mass fluctuations at high redshift and the evolution of the equation of state of the intergalactic medium.

  15. Environmental Assessment

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

    room on August 19, 2009. The following issues were discussed: 1. Removal and replacement of cattle guards and concerns with cattle crossing to the adjacent pasture. 2....

  16. Risk assessment in environmental management

    SciTech Connect (OSTI)

    Asante-Duah, D.K.

    1998-07-01T23:59:59.000Z

    This book is a straightforward exposition of US EPA-based procedures for the risk assessment and risk management of contaminated land, interwoven with discussions on some of the key fundamentals on the fate and transport of chemicals in the environment and the toxic action of environmental chemicals. The book is logically structured, commencing with a general overview of the principles of risk assessment and the interface with environmental legislation. There follows an introduction to environmental fate and transport, modeling, toxicology and uncertainty analysis, and a discussion of the elements of a risk assessment (site characterization, exposure analysis, toxic action and risk characterization), intake of a chemical with its environmental concentration and activity-related parameters such as inhalation rate and exposure time. The book concludes with a discussion on the derivation of risk-based action levels and remediation goals.

  17. Energy efficiency in the US economy technical report four: Analysis of energy-efficiency investment decisions by small and medium-sized manufacturers

    SciTech Connect (OSTI)

    NONE

    1996-03-01T23:59:59.000Z

    This report highlights the results of a comprehensive analysis of investment decisions regarding energy-efficiency measures at small and medium-sized manufacturing plants. The analysis is based primarily on the experiences of companies participating in the US Department of Energy`s Industrial Assessment Center (IAC) program.

  18. Characterization of In-Use Medium Duty Electric Vehicle Driving and Charging Behavior: Preprint

    SciTech Connect (OSTI)

    Duran, A.; Ragatz, A.; Prohaska, R.; Kelly, K.; Walkowicz, K.

    2014-11-01T23:59:59.000Z

    The U.S. Department of Energy's American Recovery and Reinvestment Act (ARRA) deployment and demonstration projects are helping to commercialize technologies for all-electric vehicles (EVs). Under the ARRA program, data from Smith Electric and Navistar medium duty EVs have been collected, compiled, and analyzed in an effort to quantify the impacts of these new technologies. Over a period of three years, the National Renewable Energy Laboratory (NREL) has compiled data from over 250 Smith Newton EVs for a total of over 100,000 days of in-use operation. Similarly, data have been collected from over 100 Navistar eStar vehicles, with over 15,000 operating days having been analyzed. NREL has analyzed a combined total of over 4 million kilometers of driving and 1 million hours of charging data for commercial operating medium duty EVs. In this paper, the authors present an overview of medium duty EV operating and charging behavior based on in-use data collected from both Smith and Navistar vehicles operating in the United States. Specifically, this paper provides an introduction to the specifications and configurations of the vehicles examined; discusses the approach and methodology of data collection and analysis, and presents detailed results regarding daily driving and charging behavior. In addition, trends observed over the course of multiple years of data collection are examined, and conclusions are drawn about early deployment behavior and ongoing adjustments due to new and improving technology. Results and metrics such as average daily driving distance, route aggressiveness, charging frequency, and liter per kilometer diesel equivalent fuel consumption are documented and discussed.

  19. Photoproduction of mesons from nuclei - In-medium properties of hadrons

    E-Print Network [OSTI]

    B. Krusche

    2004-11-18T23:59:59.000Z

    Recent experimental results for the in-medium properties of hadrons obtained with photoproduction of mesons from nuclei are discussed. The experiments were done with the TAPS detector at the tagged photon beam of the MAMI accelerator in Mainz. Measured were the final states $\\pi^o X$, $\\eta X$, $2\\pi^oX$, and $\\pi^o\\pi^{\\pm}X$ for $^{12}$C, $^{40}$Ca, $^{93}$Nb, and $^{208}$Pb up to the second resonance region. The results were used for an investigation of the in-medium properties of the P$_{33}$(1232), the P$_{11}$(1440), the D$_{13}$(1520), and the S$_{11}$(1535) resonances. It was found that the cross sections can be spilt into a component which originates from the low density surface region of the nuclei and a component which scales like the nuclear volume. The energy dependence of the surface component is strikingly similar to the deuteron, it shows a clear signal for the second resonance peak. The volume component is lacking this peak and shows an enhancement at intermediate energies. Furthermore the measurement of coherent $\\eta$-photoproduction and the final state $p\\pi^o$ from $^3$He is discussed in the context of the search for $\\eta$-mesic nuclei.

  20. Risk Assessment

    Broader source: Energy.gov [DOE]

    A set of issues that state and local governments should carefully consider, with the goal of helping them assess and anticipate solutions for some worst case or unfortunate case scenarios as they...

  1. Environmental Assessment

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

    surface and the lower part of the atmosphere; this phenomenon is called the greenhouse effect. U.S. Department of Energy DOEEA-1728D Draft Environmental Assessment 32 June...

  2. Abb Inc. medium-voltage products' supply chain analysis, including inventory, supplier scorecard, and risk assessments

    E-Print Network [OSTI]

    Gaskins, Tamboura E. (Tamboura Elyse)

    2006-01-01T23:59:59.000Z

    In conformance with ABB's process excellence plan, this thesis study was undertaken to support improvements in on-time delivery of components, decreased order cycles, and reduced inventory levels for ADVAC (spring-mechan ...

  3. Energy Assessments: What are the Benefits to Small and Medium Facilities?

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 Federal Register /of Energy 3 BTOWebinar Energy 101ProductivityNovember

  4. Save Energy Now Energy Assessments What Are the Benefits for Small and Medium Facilities?

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 <Department ofDepartment ofEnergyFebruary 19, 2009 Energy

  5. Biofuel Boundaries: Estimating the Medium-Term Supply Potential of Domestic Biofuels

    E-Print Network [OSTI]

    Jones, Andrew; O'Hare, Michael; Farrell, Alexander

    2007-01-01T23:59:59.000Z

    Biofuel Boundaries: Estimating the Medium-Term SupplyAugust 22, 2007 Biofuel Boundaries: Estimating the Medium-significant amount of liquid biofuel (equivalent to 30-100%

  6. Automated Demand Response Technology Demonstration Project for Small and Medium Commercial Buildings

    E-Print Network [OSTI]

    Page, Janie

    2012-01-01T23:59:59.000Z

    Demand Response for Small Commercial Buildings.   Lawrence small?medium buildings’ roles in demand response  efforts.  demand response for small? medium commercial buildings 

  7. Earth Syst. Dynam. Discuss., 4, C312C312, 2013 www.earth-syst-dynam-discuss.net/4/C312/2013/

    E-Print Network [OSTI]

    Scafetta, Nicola

    Earth Syst. Dynam. Discuss., 4, C312­C312, 2013 www.earth-syst-dynam-discuss.net/4/C312 of the Past OpenAccess OpenAccess Climate of the Past Discussions Earth System Dynamics OpenAccess OpenAccess Earth System Dynamics Discussions Geoscientific Instrumentation Methods and Data Systems Open

  8. Discussion of Comments from a Peer Review of A Technique for Human Event Anlysis (ATHEANA)

    SciTech Connect (OSTI)

    Bley, D.C.; Cooper, S.E.; Forester, J.A.; Kolaczkowski, A.M.; Ramey-Smith, A,; Wreathall J.

    1999-01-28T23:59:59.000Z

    In May of 1998, a technical basis and implementation guidelines document for A Technique for Human Event Analysis (ATHEANA) was issued as a draft report for public comment (NUREG-1624). In conjunction with the release of draft NUREG- 1624, a peer review of the new human reliability analysis method its documentation and the results of an initial test of the method was held over a two-day period in June 1998 in Seattle, Washington. Four internationally known and respected experts in HK4 or probabilistic risk assessment were selected to serve as the peer reviewers. In addition, approximately 20 other individuals with an interest in HRA and ATHEANA also attended the peer and were invited to provide comments. The peer review team was asked to comment on any aspect of the method or the report in which improvements could be made and to discuss its strengths and weaknesses. They were asked to focus on two major aspects: Are the basic premises of ATHEANA on solid ground and is the conceptual basis adequate? Is the ATHEANA implementation process adequate given the description of the intended users in the documentation? The four peer reviewers asked questions and provided oral comments during the peer review meeting and provided written comments approximately two weeks after the completion of the meeting. This paper discusses their major comments.

  9. Medium Modifications of Hadron Properties and Partonic Processes

    SciTech Connect (OSTI)

    W. K. Brooks, S. Strauch, K. Tsushima

    2011-06-01T23:59:59.000Z

    Chiral symmetry is one of the most fundamental symmetries in QCD. It is closely connected to hadron properties in the nuclear medium via the reduction of the quark condensate , manifesting the partial restoration of chiral symmetry. To better understand this important issue, a number of Jefferson Lab experiments over the past decade have focused on understanding properties of mesons and nucleons in the nuclear medium, often benefiting from the high polarization and luminosity of the CEBAF accelerator. In particular, a novel, accurate, polarization transfer measurement technique revealed for the first time a strong indication that the bound proton electromagnetic form factors in 4He may be modified compared to those in the vacuum. Second, the photoproduction of vector mesons on various nuclei has been measured via their decay to e+e- to study possible in-medium effects on the properties of the rho meson. In this experiment, no significant mass shift and some broadening consistent with expected collisional broadening for the rho meson has been observed, providing tight constraints on model calculations. Finally, processes involving in-medium parton propagation have been studied. The medium modifications of the quark fragmentation functions have been extracted with much higher statistical accuracy than previously possible.

  10. Gamma-ray burst interaction with dense interstellar medium

    E-Print Network [OSTI]

    Maxim Barkov; Gennady Bisnovatyi-Kogan

    2004-10-07T23:59:59.000Z

    Interaction of cosmological gamma ray burst radiation with the dense interstellar medium of host galaxy is considered. Gas dynamical motion of interstellar medium driven by gamma ray burst is investigated in 2D approximation for different initial density distributions of host galaxy matter and different total energy of gamma ray burst. The maximum velocity of motion of interstellar medium is $1.8\\cdot10^4$ km/s. Light curves of gamma ray burst afterglow are calculated for set of non homogeneous density, distribution gamma ray burst total energy, and different viewing angles. Spectra of gamma ray burst afterglow are modeled taking into account conversion of hard photons (soft X-ray, hard UV) to soft UV and optics photons.

  11. Turbulence production and turbulent pressure support in the intergalactic medium

    E-Print Network [OSTI]

    Iapichino, L; Niemeyer, J C; Merklein, J

    2011-01-01T23:59:59.000Z

    The injection and evolution of turbulence in the intergalactic medium is studied by means of mesh-based hydrodynamical simulations, including a subgrid scale (SGS) model for small-scale unresolved turbulence. The simulations show that the production of turbulence has a different redshift dependence in the intracluster medium (ICM) and the warm-hot intergalactic medium (WHIM). We show that turbulence in the ICM is produced chiefly by merger-induced shear flows, whereas the production in the WHIM is dominated by shock interactions. Secondly, the effect of dynamical pressure support on the gravitational contraction has been studied. This turbulent support is stronger in the WHIM gas at baryon overdensities 1 < delta < 100, and less relevant for the ICM. Although the relative mass fraction of the gas with large vorticity is considerable (52% in the ICM), we find that for only about 10% in mass this is dynamically relevant, namely not associated to an equally large thermal pressure support. According to this...

  12. Energy trapping and shock disintegration in a composite granular medium

    E-Print Network [OSTI]

    C. Daraio; V. F. Nesterenko; E. B. Herbold; S. Jin

    2005-09-24T23:59:59.000Z

    Granular materials demonstrate a strongly nonlinear behavior influencing the wave propagation in the medium. We report the first experimental observation of impulse energy confinement and the resultant disintegration of shock and solitary waves. The medium consists of alternating ensambles of high-modulus vs orders of magnitude lower modulus chains of different masses. The trapped energy is contained within the "softer" portions of the composite chain and is slowly released in the form of weak, separated pulses over an extended period of time. This effect is enhanced by using a specific group assembly and superimposed force.

  13. Integrated Environmental Assessment Part III: Exposure Assessment

    E-Print Network [OSTI]

    McKone, Thomas E.; Small, Mitchell J.

    2006-01-01T23:59:59.000Z

    issues such as life cycle assessment (LCA) fosters the needlife-cycle impact assessment (LCIA) process within in LCA is

  14. Life Cycle Assessments Confirm the Need for Hydropower and Nuclear Energy

    SciTech Connect (OSTI)

    Gagnon, L.

    2004-10-03T23:59:59.000Z

    This paper discusses the use of life cycle assessments to confirm the need for hydropower and nuclear energy.

  15. Save Energy Now Data Center Assessments to Identify Efficiency Opportunities

    Broader source: Energy.gov [DOE]

    Power Point presentation from a Webcast held on November 13, 2008, to discuss DOE's and FEMP's data center assessments that can identify efficiency opportunities.

  16. ITL BULLETIN FOR AUGUST 2010 ASSESSING THE EFFECTIVENESS OF SECURITY CONTROLS IN FEDERAL

    E-Print Network [OSTI]

    discusses the process for assessing the security controls in organizational information systems that are implemented in federal information systems. The selection and assessment of appropriate security controls Controls in Federal Information Systems and Organizations: Building Effective Security Assessment Plans

  17. Theoretical and experimental investigation of thermohydrologic processes in a partially saturated, fractured porous medium

    SciTech Connect (OSTI)

    Green, R.T.; Manteufel, R.D. [Nuclear Regulatory Commission, Washington, DC (United States). Div. of Regulatory Applications; Dodge, F.T.; Svedeman, S.J. [Southwest Research Inst., San Antonio, TX (United States). Center for Nuclear Waste Regulatory Analyses

    1993-07-01T23:59:59.000Z

    The performance of a geologic repository for high-level nuclear waste will be influenced to a large degree by thermohydrologic phenomena created by the emplacement of heat-generating radioactive waste. The importance of these phenomena is manifest in that they can greatly affect the movement of moisture and the resulting transport of radionuclides from the repository. Thus, these phenomena must be well understood prior to a definitive assessment of a potential repository site. An investigation has been undertaken along three separate avenues of analysis: (i) laboratory experiments, (ii) mathematical models, and (iii) similitude analysis. A summary of accomplishments to date is as follows. (1) A review of the literature on the theory of heat and mass transfer in partially saturated porous medium. (2) A development of the governing conservation and constitutive equations. (3) A development of a dimensionless form of the governing equations. (4) A numerical study of the importance and sensitivity of flow to a set of dimensionless groups. (5) A survey and evaluation of experimental measurement techniques. (6) Execution of laboratory experiments of nonisothermal flow in a porous medium with a simulated fracture.

  18. Integrated Assessment Modeling

    SciTech Connect (OSTI)

    Edmonds, James A.; Calvin, Katherine V.; Clarke, Leon E.; Janetos, Anthony C.; Kim, Son H.; Wise, Marshall A.; McJeon, Haewon C.

    2012-10-31T23:59:59.000Z

    This paper discusses the role of Integrated Assessment models (IAMs) in climate change research. IAMs are an interdisciplinary research platform, which constitutes a consistent scientific framework in which the large-scale interactions between human and natural Earth systems can be examined. In so doing, IAMs provide insights that would otherwise be unavailable from traditional single-discipline research. By providing a broader view of the issue, IAMs constitute an important tool for decision support. IAMs are also a home of human Earth system research and provide natural Earth system scientists information about the nature of human intervention in global biogeophysical and geochemical processes.

  19. Case Discussions

    E-Print Network [OSTI]

    Hill, Robin

    2011-01-01T23:59:59.000Z

    racks, cotton, pins, mica, wax, rubber, ink jet prints onracks, cotton, pins, mica, wax, rubber, ink jet prints onfloor juxtaposed with large wax and pigment drawings on the

  20. Discussion Motivation

    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 AdministrationField Campaign:INEA : Papers Subfolders inDiscovery ofmultipleRemote Sensors

  1. Discussion Motivation

    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 AdministrationField Campaign:INEA : Papers Subfolders inDiscovery ofmultipleRemote

  2. Translating Indian miniature paintings into a time-based medium

    E-Print Network [OSTI]

    Vaidya, Aradhana

    2008-10-10T23:59:59.000Z

    : Visualization Sciences iii ABSTRACT Translating Indian Miniature Paintings into a Time-based Medium. (May 2008) Aradhana Vaidya, B.Arch., Nagpur University, India Chair of Advisory Committee: Prof. Carol LaFayette The purpose of this research... ................................ 4 II VISUAL ANALYSIS OF MINIATURE PAINTINGS....................... 8 II.1 Characteristics of Indian miniature paintings..................... 8 II.2 Themes of Indian miniature paintings................................ 23 III...

  3. Dynamics of a Supernova Envelope in a Cloudy Interstellar Medium

    E-Print Network [OSTI]

    Korolev, V V; Kovalenko, I G; Shchekinov, Yu A

    2015-01-01T23:59:59.000Z

    The evolution of a supernova remnant in a cloudy medium as a function of the volume filling factor of the clouds is studied in a three-dimensional axially symmetrical model. The model includes the mixing of heavy elements (metals) ejected by the supernova and their contribution to radiative losses. The interaction of the supernova envelope with the cloudy phase of the interstellar medium leads to nonsimultaneous, and on average earlier, onsets of the radiative phase in different parts of the supernova envelope. Growth in the volume filling factor $f$ leads to a decrease in the time for the transition of the envelope to the radiative phase and a decrease in the envelope's mean radius, due to the increased energy losses by the envelope in the cloudy medium. When the development of hydrodynamical instabilities in the supernova envelope is efficient, the thermal energy falls as $E_t\\sim t^{-2.3}$, for the propagation of the supernova remnant through either a homogeneous or a cloudy medium. When the volume filling...

  4. The Solar Wind and Its Interaction with the Interstellar Medium

    E-Print Network [OSTI]

    Richardson, John

    outward through the solar system and interacts with the interstellar neutrals which slow and heat the wind. The arrows in the top panel show the flow of the solar wind and the interstellar J. D. Richardson CenterThe Solar Wind and Its Interaction with the Interstellar Medium John D. Richardson Abstract

  5. CARIBBEAN SEACRUISE IN LUXURY ABOARD CRYSTAL SERENITY BEST MEDIUM

    E-Print Network [OSTI]

    Spence, Harlan Ernest

    CARIBBEAN SEACRUISE IN LUXURY ABOARD CRYSTAL SERENITY WORLD'S BEST MEDIUM CRUISE LINE SIX and brilliantly colored colonial architecture -- this forms the backdrop for our Cruise the Caribbean Sea program at the Caribbean's many offerings, from picturesque lagoons to quaint towns to bustling beaches. Experience

  6. Coupling free flow / porous-medium flow General idea

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    equation t (v) + div (vv ) - div(v) + p - g - qv = 0 Darcy flow equation t (S) - div K (p - g) - qpmT transport equation t (X) + div (vX - DsteamX) = qsteam 16/14 #12;Backup additional Darcy flow equations-Stokes 1 phase, 2 components, temperature sharp interface porous-medium / Darcy flow 2 phases, 2 component

  7. Mortar spectral element discretization of Darcy's equations in nonhomogeneous medium

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Mortar spectral element discretization of Darcy's equations in nonhomogeneous medium Mouna Daadaa Cedex 05 France. daadaa@ann.jussieu.fr 4 mai 2010 Abstract : We consider Darcy's equations. They turn out to be in good coherency with the theoretical results. R´esum´e : Les ´equations de Darcy mod

  8. Effective medium theory of permeation through ideal polymer networks

    E-Print Network [OSTI]

    Yong Wu

    2007-03-02T23:59:59.000Z

    The diffusion process through an ideal polymer network is studied by applying the effective medium theory (EMT) to a lattice-gas model. Polymers are modeled by random walks on the lattice bonds, across which molecules can hop with a certain probability. The steady state current of the system is calculated using the EMT and the results are compared to the simulations.

  9. Model of innovation transfer in small and medium enterprises (SME)

    E-Print Network [OSTI]

    Model of innovation transfer in small and medium enterprises (SME) Justyna Patalas-Maliszewska1 society, governments and entrepreneurs. In this paper the concept of innovation transfer in SME based of innovation transfer - based on correlations between innovation level in the enterprise sector SME

  10. CalHEAT Research and Market Transformation Roadmap for Medium

    E-Print Network [OSTI]

    California at Davis, University of

    - 8 Work Trucks Work Site Support Tractors - Short Haul/ Regional Class 2b/3 vans/pickup s Class 3 - 8CalHEAT Research and Market Transformation Roadmap for Medium and Heavy Duty Trucks Delivering President CALSTART #12;California Hybrid, Efficient and Advanced Truck Research Center What is Cal

  11. Distributed Medium Access Control for Next Generation CDMA Wireless Networks

    E-Print Network [OSTI]

    Zhuang, Weihua

    Distributed Medium Access Control for Next Generation CDMA Wireless Networks Hai Jiang, Princeton wireless networks are expected to have a simple infrastructure with distributed control. In this article, we consider a generic distributed network model for future wireless multi- media communications

  12. MEDIUM ACCESS CONTROL LAYER FOR UNDERWATER SENSOR NETWORKS*

    E-Print Network [OSTI]

    Chen, Min

    sensor networks, energy-efficient reliable MAC protocol, and slotted FAMA MAC protocol and low1 CHAPTER 1 MEDIUM ACCESS CONTROL LAYER FOR UNDERWATER SENSOR NETWORKS* Yanping Zhang* , Yang Xiao of Alabama Tuscaloosa, AL 35487-0290 USA E-mail: yangxiao@ieee.org + Dept. of Electrical and Computer

  13. FLAME SURFACE DENSITIES IN PREMIXED COMBUSTION AT MEDIUM TO HIGH

    E-Print Network [OSTI]

    Gülder, �mer L.

    premixed combustion diagrams. Small-scale transport of heat and species may be more important and chemistryFLAME SURFACE DENSITIES IN PREMIXED COMBUSTION AT MEDIUM TO HIGH TURBULENCE INTENSITIES O¨ MER L in turbulent premixed propane= air flames were determined experimentally. The instantaneous flame fronts were

  14. System engineering and energy costs of small and medium wind turbines

    SciTech Connect (OSTI)

    Tu, P.K.C.

    1985-07-01T23:59:59.000Z

    A preliminary system-level, computational model was developed to allow broad assessment and optimization of wind turbine design and costs analysis at The Wind Energy Research Center, Solar Energy Research Institute under contract to the US Department of Energy (DOE). This paper briefly describes the basic principles used in the model for energy capture and cost-of-energy (COE), and demonstrates the model's usefulness in determining the effects of rotor and system design modifications. The model's utilization for conducting parametric studies and defining the energy cost of small and medium-sized wind turbines is also shown. Topics of interest to wind turbine engineers and designers include the effects on rotor performance of airfoil geometry, blade pitch angle setting, and the system RPM schedule, etc.

  15. Erroneous coal maturity assessment caused by low temperature oxidation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Erroneous coal maturity assessment caused by low temperature oxidation Y. Copard J. R. Disnar, J. F on different outcrop coals from the French Massif Central revealed abnormally high Tmax values, which initially observed for medium to low volatile bituminous coals (Rr1.5%), was accompanied by a very clear exponential

  16. Quantum storage and cloning of light states in EIT-like medium

    E-Print Network [OSTI]

    A. P. Alodjants; S. M. Arakelian

    2006-09-25T23:59:59.000Z

    In the paper we consider a new approach for storage and cloning of quantum information by three level atomic (molecular) systems in the presence of the electromagnetically induced transparency (EIT) effect. For that, the various schemes of transformation into the bright and dark polaritons for quantum states of optical field in the medium are proposed. Physical conditions of realization of quantum nondemolition (QND) storage of quantum optical state are formulated for the first time. We have shown that the best storage and cloning of can be achieved with the atomic ensemble in the Bose-Einstein condensation state. We discuss stimulated Raman two-color photoassociation for experimental realization of the schemes under consideration.

  17. Homogenization of a locally-periodic medium with areas of low and high diffusivity

    E-Print Network [OSTI]

    van Noorden, T

    2010-01-01T23:59:59.000Z

    We aim at understanding transport in porous materials including regions with both high and low diffusivities. For such scenarios, the transport becomes structured (here: {\\em micro-macro}). The geometry we have in mind includes regions of low diffusivity arranged in a locally-periodic fashion. We choose a prototypical advection-diffusion system (of minimal size), discuss its formal homogenization (the heterogenous medium being now assumed to be made of zones with circular areas of low diffusivity of $x$-varying sizes), and prove the weak solvability of the limit two-scale reaction-diffusion model. A special feature of our analysis is that most of the basic estimates (positivity, $L^\\infty$-bounds, uniqueness, energy inequality) are obtained in $x$-dependent Bochner spaces.

  18. GRB 081007 AND GRB 090424: THE SURROUNDING MEDIUM, OUTFLOWS, AND SUPERNOVAE

    SciTech Connect (OSTI)

    Jin Zhiping; Covino, Stefano; Fugazza, Dino; Melandri, Andrea; Campana, Sergio; D'Avanzo, Paolo [INAF-Osservatorio Astronomico di Brera, via Emilio Bianchi 46, I-23807 Merate (Italy); Della Valle, Massimo [INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello, 16, I-80131 Napoli (Italy); Ferrero, Patrizia [Instituto de Astrofisica de Canarias (IAC), E-38200 La Laguna, Tenerife (Spain); Malesani, Daniele; Fynbo, Johan P. U.; Hjorth, Jens [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen O (Denmark); Pian, Elena [Scuola Normale Superiore di Pisa, Piazza dei Cavalieri 7, I-56126 Pisa (Italy); Salvaterra, Ruben [INAF-IASF Milano, via E. Bassini 15, I-20133 Milano (Italy); Bersier, David [Astrophysics Research Institute, Liverpool John Moores University, Egerton Wharf, Birkenhead CH41 1LD (United Kingdom); Cano, Zach [Centre for Astrophysics and Cosmology, Science Institute, University of Iceland, Reykjavik (Iceland); Castro-Tirado, Alberto J.; Gorosabel, Javier [Instituto de Astrofisica de Andalucia (IAA-CSIC), Glorieta de la Astronomia s/n, E-18008 Granada (Spain); Gomboc, Andreja [Mathematics and Physics, University of Ljubljana, Jadranska ulica 19, 1000 Ljubljana (Slovenia); Guidorzi, Cristiano [Department of Physics, University of Ferrara, via Saragat 1, I-44122 Ferrara (Italy); Haislip, Joshua B., E-mail: jin@pmo.ac.cn [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC 27599 (United States); and others

    2013-09-10T23:59:59.000Z

    We discuss the results of the analysis of multi-wavelength data for the afterglows of GRB 081007 and GRB 090424, two bursts detected by Swift. One of them, GRB 081007, also shows a spectroscopically confirmed supernova, SN 2008hw, which resembles SN 1998bw in its absorption features, while the maximum magnitude may be fainter, up to 0.7 mag, than observed in SN 1998bw. Bright optical flashes have been detected in both events, which allows us to derive solid constraints on the circumburst-matter density profile. This is particularly interesting in the case of GRB 081007, whose afterglow is found to be propagating into a constant-density medium, yielding yet another example of a gamma-ray burst (GRB) clearly associated with a massive-star progenitor which did not sculpt the surroundings with its stellar wind. There is no supernova component detected in the afterglow of GRB 090424, likely due to the brightness of the host galaxy, comparable to the Milky Way. We show that the afterglow data are consistent with the presence of both forward- and reverse-shock emission powered by relativistic outflows expanding into the interstellar medium. The absence of optical peaks due to the forward shock strongly suggests that the reverse-shock regions should be mildly magnetized. The initial Lorentz factor of outflow of GRB 081007 is estimated to be {Gamma} {approx} 200, while for GRB 090424 a lower limit of {Gamma} > 170 is derived. We also discuss the prompt emission of GRB 081007, which consists of just a single pulse. We argue that neither the external forward-shock model nor the shock-breakout model can account for the prompt emission data and suggest that the single-pulse-like prompt emission may be due to magnetic energy dissipation of a Poynting-flux-dominated outflow or to a dissipative photosphere.

  19. Light scattering by radiation fields: the optical medium analogy

    E-Print Network [OSTI]

    Donato Bini; Pierluigi Fortini; Andrea Geralico; Maria Haney; Antonello Ortolan

    2014-08-23T23:59:59.000Z

    The optical medium analogy of a radiation field generated by either an exact gravitational plane wave or an exact electromagnetic wave in the framework of general relativity is developed. The equivalent medium of the associated background field is inhomogeneous and anisotropic in the former case, whereas it is inhomogeneous but isotropic in the latter. The features of light scattering are investigated by assuming the interaction region to be sandwiched between two flat spacetime regions, where light rays propagate along straight lines. Standard tools of ordinary wave optics are used to study the deflection of photon paths due to the interaction with the radiation fields, allowing for a comparison between the optical properties of the equivalent media associated with the different background fields.

  20. Continuum Electrodynamics of a Piecewise-Homogeneous Linear Medium

    E-Print Network [OSTI]

    Crenshaw, Michael E

    2015-01-01T23:59:59.000Z

    The energy--momentum tensor and the tensor continuity equation serve as the conservation laws of energy, linear momentum, and angular momentum for a continuous flow. Previously, we derived equations of motion for macroscopic electromagnetic fields in a homogeneous linear dielectric medium that is draped with a gradient-index antireflection coating (J. Math Phys. 55, 042901 (2014) ). These results are consistent with the electromagnetic tensor continuity equation in the limit that reflections and the accompanying surface forces are negligible thereby satisfying the condition of an unimpeded flow in a thermodynamically closed system. Here, we take the next step and derive equations of motion for the macroscopic fields in the limiting case of a piecewise-homogeneous simple linear dielectric medium. The presence of radiation surface forces on the interface between two different homogeneous linear materials means that the energy--momentum formalism must be modified to treat separate homogeneous media in which the ...

  1. An Improved Treatment of Cosmological Intergalactic Medium Evolution

    E-Print Network [OSTI]

    Manrique, Alberto

    2015-01-01T23:59:59.000Z

    The modeling of galaxy formation and reionization, two central issues of modern cosmology, relies on the accurate follow-up of the intergalactic medium (IGM). Unfortunately, owing to the complex nature of this medium, the differential equations governing its ionization state and temperature are only approximate. In this paper, we improve these master equations. We derive new expression for the distinct composite inhomogeneous IGM phases, including all relevant ionizing/recombining and cooling/heating mechanisms, taking into account inflows/outflows into/from halos, and using more accurate recombination coefficients. Furthermore, to better compute the source functions in the equations we provide an analytic procedure for calculating the halo mass function in ionized environments, accounting for the bias due to the ionization state of their environment. Such an improved treatment of IGM evolution is part of a complete realistic model of galaxy formation presented elsewhere.

  2. Charmonium in a hot medium: melting vs absorption

    E-Print Network [OSTI]

    B. Z. Kopeliovich; I. K. Potashnikova; Ivan Schmidt; M. Siddikov

    2014-08-11T23:59:59.000Z

    A charmonium produced in heavy ion collisions at RHIC and LHC propagates through a dense co-moving matter with a rather high relative momentum, =4-10GeV^2. In spite of Debye screening of the binding potential, the charmonium survives with a substantial probability, even if the c-cbar potential is completely screened in the hot environment. In addition, the color-exchange interaction with the medium is another important source of charmonium suppression. Attenuation in a hot medium caused by both effects is evaluated by means of the path integral technique, which requires ability of boosting the binding potential to a moving reference frame. This problem is solved in the approximation of small intrinsic velocities of the charmed quarks.

  3. IMPORTANCE OF SAFETY CULTURE ASSESSMENT

    SciTech Connect (OSTI)

    Spitalnik, J.

    2004-10-06T23:59:59.000Z

    Safety Management has lately been considered by some Nuclear Regulatory agencies as the tool on which to concentrate their efforts to implement modern regulation structures, because Safety Culture was said to be difficult to monitor. However, Safety Culture can be assessed and monitored even if it is problematical to make Safety Culture the object of regulation. This paper stresses the feasibility and importance of Safety Culture Assessment based on self-assessment applications performed in several nuclear organizations in Latin America. Reasons and ownership for assessing Safety Culture are discussed, and relevant aspects considered for setting up and programming such an assessment are shown. Basic principles that were taken into account, as well as financial and human resources used in actual self-assessments are reviewed, including the importance of adequate statistical analyses and the necessity of proper feed-back of results. The setting up of action plans to enhance Safety Culture is the final step of the assessment program that once implemented will enable to establish a Safety Culture monitoring process within the organization.

  4. RF-MEMS Switched Varactors for Medium Power Applications

    E-Print Network [OSTI]

    Maury, F; Crunteanu, A; Conseil, F; Blondy, P

    2008-01-01T23:59:59.000Z

    In RF (Radio Frequency) domain, one of the limitations of using MEMS (Micro Electromechanical Systems) switching devices for medium power applications is RF power. Failure phenomena appear even for 500 mW. A design of MEMS switched capacitors with an enhanced topology is presented in this paper to prevent it. This kind of device and its promising performances will serve to fabricate a MEMS based phase shifter able to work under several watts.

  5. Diffusion of hidden charm mesons in hadronic medium

    E-Print Network [OSTI]

    Sukanya Mitra; Sabyasachi Ghosh; Santosh K. Das; Sourav Sarkar; Jan-e Alam

    2014-09-16T23:59:59.000Z

    The drag and diffusion coefficients of a hot hadronic medium have been evaluated by using hidden charm mesons as probes. The matrix elements for the evaluation of these coefficients are calculated using an effective theory as well as from scattering lengths. Although the transport coefficients show a significant rise with temperature its effects on the suppression of $J/\\psi$ in hadronic matter is not significant.

  6. Enrichment of the Intergalactic Medium by the Milky Way Subgroup

    E-Print Network [OSTI]

    Leticia Carigi

    2001-08-27T23:59:59.000Z

    I study the effect of the galaxies of the Milky Way subgroup on the chemical enrichment of the diffuse gas within the Local Group. The preferred model predicts that the present-day intergalactic medium mass is 1/22 of the initial baryonic mass and its metallicity is 1/20 $Z_\\odot$. Nearly 80 % of intergalactic metals were produced in the Galactic bulge.

  7. Metal Enrichment in the Intra-Cluster Medium

    E-Print Network [OSTI]

    Sabine Schindler

    2006-11-20T23:59:59.000Z

    The enrichment of the Intra-Cluster Medium (ICM) with heavy elements is reviewed. There is now good observational evidence for enrichment including abundance ratios and metallicity distributions. Various processes involved in the enrichment process -- ram-pressure stripping, galactic winds, galaxy-galaxy interactions, AGN outflows and intra-cluster supernovae -- are described. Simulations of the ICM evolution taking into account metal enrichment are presented.

  8. Assessment Documents

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRA NewslettersPartnership of theArctic Energy Summit26 Assessment

  9. Environmental Assessment

    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 AdministrationField8, 2000ConsumptionInnovationEnvironment,682 Environmental Assessment

  10. Environmental Assessment

    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 AdministrationField8, 2000ConsumptionInnovationEnvironment,682 Environmental Assessment 728D

  11. Environmental Assessment

    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 AdministrationField8, 2000ConsumptionInnovationEnvironment,682 Environmental Assessment

  12. Performance Assessment

    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 Science (SC)IntegratedSpeeding accessPeptoid Nanosheets Offer a Diversity ofPerformance assessment

  13. Ecological Risk Assessments

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

    Ecological Risk Assessments Ecological Risk Assessments Ecological risk assessment is the appraisal of potential adverse effects of exposure to contaminants on plants and animals....

  14. Optical Anisotropy of Schwarzschild Metric within Equivalent Medium Framework

    E-Print Network [OSTI]

    Sina Khorasani; Bizhan Rashidian

    2009-12-16T23:59:59.000Z

    It is has been long known that the curved space in the presence of gravitation can be described as a non-homogeneous anisotropic medium in flat geometry with different constitutive equations. In this article, we show that the eigenpolarizations of such medium can be exactly solved, leading to a pseudo-isotropic description of curved vacuum with two refractive index eigenvalues having opposite signs, which correspond to forward and backward travel in time. We conclude that for a rotating universe, time-reversal symmetry is broken. We also demonstrate the applicability of this method to Schwarzschild metric and derive exact forms of refractive index. We derive the subtle optical anisotropy of space around a spherically symmetric, non-rotating and uncharged blackhole in the form of an elegant closed form expression, and show that the refractive index in such a pseudo-isotropic system would be a function of coordinates as well as the direction of propagation. Corrections arising from such anisotropy in the bending of light are shown and a simplified system of equations for ray-tracing in the equivalent medium of Schwarzschild metric is found.

  15. Polyacrylamide medium for the electrophoretic separation of biomolecules

    DOE Patents [OSTI]

    Madabhushi, Ramakrishna S.; Gammon, Stuart A.

    2003-11-11T23:59:59.000Z

    A polyacryalmide medium for the electrophoretic separation of biomolecules. The polyacryalmide medium comprises high molecular weight polyacrylamides (PAAm) having a viscosity average molecular weight (M.sub.v) of about 675-725 kDa were synthesized by conventional red-ox polymerization technique. Using this separation medium, capillary electrophoresis of BigDye DNA sequencing standard was performed. A single base resolution of .about.725 bases was achieved in .about.60 minute in a non-covalently coated capillary of 50 .mu.m i.d., 40 cm effective length, and a filed of 160 V/cm at 40.degree. C. The resolution achieved with this formulation to separate DNA under identical conditions is much superior (725 bases vs. 625 bases) and faster (60 min. vs. 75 min.) to the commercially available PAAm, such as supplied by Amersham. The formulation method employed here to synthesize PAAm is straight-forward, simple and does not require cumbersome methods such as emulsion polymerizaiton in order to achieve very high molecular weights. Also, the formulation here does not require separation of PAAm from the reaction mixture prior to reconstituting the polymer to a final concentration. Furthermore, the formulation here is prepared from a single average mol. wt. PAAm as opposed to the mixture of two different average mo. wt. PAAm previously required to achieve high resolution.

  16. PNNL Expert Landis Kannberg Discusses the Electrical Grid of the Future

    SciTech Connect (OSTI)

    Landis Kannberg

    2011-10-11T23:59:59.000Z

    Mechanical Engineer Landis Kannberg discusses how PNNL is improving the nation's electricity infrastructure.

  17. PNNL Expert Landis Kannberg Discusses the Electrical Grid of the Future

    ScienceCinema (OSTI)

    Landis Kannberg

    2013-06-10T23:59:59.000Z

    Mechanical Engineer Landis Kannberg discusses how PNNL is improving the nation's electricity infrastructure.

  18. Model-Based Analysis of Electric Drive Options for Medium-Duty Parcel Delivery Vehicles: Preprint

    SciTech Connect (OSTI)

    Barnitt, R. A.; Brooker, A. D.; Ramroth, L.

    2010-12-01T23:59:59.000Z

    Medium-duty vehicles are used in a broad array of fleet applications, including parcel delivery. These vehicles are excellent candidates for electric drive applications due to their transient-intensive duty cycles, operation in densely populated areas, and relatively high fuel consumption and emissions. The National Renewable Energy Laboratory (NREL) conducted a robust assessment of parcel delivery routes and completed a model-based techno-economic analysis of hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle configurations. First, NREL characterized parcel delivery vehicle usage patterns, most notably daily distance driven and drive cycle intensity. Second, drive-cycle analysis results framed the selection of drive cycles used to test a parcel delivery HEV on a chassis dynamometer. Next, measured fuel consumption results were used to validate simulated fuel consumption values derived from a dynamic model of the parcel delivery vehicle. Finally, NREL swept a matrix of 120 component size, usage, and cost combinations to assess impacts on fuel consumption and vehicle cost. The results illustrated the dependency of component sizing on drive-cycle intensity and daily distance driven and may allow parcel delivery fleets to match the most appropriate electric drive vehicle to their fleet usage profile.

  19. Assessor Training Assessment Techniques

    E-Print Network [OSTI]

    NVLAP Assessor Training Assessment Techniques: Communication Skills and Conducting an Assessment listener ·Knowledgeable Assessor Training 2009: Assessment Techniques: Communication Skills & Conducting, truthful, sincere, discrete · Diplomatic · Decisive · Selfreliant Assessor Training 2009: Assessment

  20. Effective model for in-medium $\\bar{K}N$ interactions including the $L=1$ partial wave

    E-Print Network [OSTI]

    Cieplý, Aleš

    2015-01-01T23:59:59.000Z

    Coupled channels model of meson-baryon interactions based on the effective chiral Lagrangian is extended to account explicitly for the $\\Sigma(1385)$ resonance that dominates the $P$-wave $\\bar{K}N$ and $\\pi\\Sigma$ interactions at energies below the $\\bar{K}N$ threshold. The presented model aims at a uniform treatment of the $\\Lambda(1405)$ and $\\Sigma(1385)$ dynamics in the nuclear medium. We demonstrate the applicability of the model by confronting its predictions with the vacuum scattering data, then we follow with discussing the impact of nuclear matter on the $\\pi\\Sigma$ mass spectrum and on the energy dependence of the $K^{-}p$ branching ratios.

  1. Effective model for in-medium $\\bar{K}N$ interactions including the $L=1$ partial wave

    E-Print Network [OSTI]

    Aleš Cieplý; Vojt?ch Krej?i?ík

    2015-01-26T23:59:59.000Z

    Coupled channels model of meson-baryon interactions based on the effective chiral Lagrangian is extended to account explicitly for the $\\Sigma(1385)$ resonance that dominates the $P$-wave $\\bar{K}N$ and $\\pi\\Sigma$ interactions at energies below the $\\bar{K}N$ threshold. The presented model aims at a uniform treatment of the $\\Lambda(1405)$ and $\\Sigma(1385)$ dynamics in the nuclear medium. We demonstrate the applicability of the model by confronting its predictions with the vacuum scattering data, then we follow with discussing the impact of nuclear matter on the $\\pi\\Sigma$ mass spectrum and on the energy dependence of the $K^{-}p$ branching ratios.

  2. Flibe assessments.

    SciTech Connect (OSTI)

    Sze, D. K.; McCarthy, K.; Sawan, M.; Tillack, M.; Ying, A.; Zinkle, S.

    2000-11-15T23:59:59.000Z

    An assessment of the issues on using flibe for fusion applications has been made. It is concluded that sufficient tritium breeding can be achieved for a flibe blanket, especially if a few cm of Be is include in the blanket design. A key issue is the control of the transmutation products such as TF and F{sub 2}. A REDOX (Reducing-Oxidation) reaction has to be demonstrated which is compatible to the blanket design. Also, MHD may have strong impact on heat transfer if the flow is perpendicular to the magnetic field. The issues associated with the REDOX reaction and the MHD issues have to be resolved by both experimental program and numerical solutions.

  3. System-Response Issues Imposed by Biodiesel in a Medium-Duty...

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

    System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine System-Response Issues Imposed by Biodiesel in a Medium-Duty Diesel Engine The objective of the current...

  4. Exploration of the comics medium developed for use on the internet

    E-Print Network [OSTI]

    Piana, Brian James

    2000-01-01T23:59:59.000Z

    A new derivative of the comics medium may be created by incorporating computer and internet technology into the design process. Traditionally a printed medium, comics is now finding its way onto the internet; more comic creators are presenting...

  5. E-Print Network 3.0 - anisotropic random medium Sample Search...

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

    39 Discrete-ordinates solution of short-pulsed laser transport in two-dimensional turbid media Summary: of the medium is L W 10 mm. The medium is anisotropically scattering with...

  6. Assessment 101: The Assessment Cycle, Clear and

    E-Print Network [OSTI]

    Su, Xiao

    Assessment 101: The Assessment Cycle, Clear and Simple October 1, 2014 Kellogg West Conference Center, Pomona, CA Resource Binder #12;2014-2015 WASC Senior College and University Commission is pleased expectations. Assessment 101: The Assessment Cycle, Clear and Simple October 1, 2014. Kellogg West, Pomona, CA

  7. A program in Medium-Energy Nuclear Physics

    SciTech Connect (OSTI)

    Berman, B.L.

    1991-12-31T23:59:59.000Z

    This report discusses research on the following topics: single electron scattering; coincidence electron scattering; photonuclear reactions; pion scattering; and the GWU nuclear detector. (LSP).

  8. A program in Medium-Energy Nuclear Physics

    SciTech Connect (OSTI)

    Berman, B.L.

    1991-01-01T23:59:59.000Z

    This report discusses research on the following topics: single electron scattering; coincidence electron scattering; photonuclear reactions; pion scattering; and the GWU nuclear detector. (LSP).

  9. Interacting FisherWright Diffusions in a Catalytic Medium Andreas Greven

    E-Print Network [OSTI]

    Klenke, Achim

    environment (catalytic medium). Here we introduce a model of interacting Fisher­Wright diffusions where environment, catalytic medium, longtime behaviour, rescaling. AMS Subject Classification: 60K35, 60J70Interacting Fisher­Wright Diffusions in a Catalytic Medium Andreas Greven Mathematisches Institut

  10. Nuclear medium effects in $?(\\bar?)$-nucleus deep inelastic scattering

    E-Print Network [OSTI]

    H. Haider; I. Ruiz Simo; M. Sajjad Athar; M. J. Vicente Vacas

    2011-08-16T23:59:59.000Z

    We study the nuclear medium effects in the weak structure functions $F_2(x,Q^2)$ and $F_3(x,Q^2)$ in the deep inelastic neutrino/antineutrino reactions in nuclei. We use a theoretical model for the nuclear spectral functions which incorporates the conventional nuclear effects, such as Fermi motion, binding and nucleon correlations. We also consider the pion and rho meson cloud contributions calculated from a microscopic model for meson-nucleus self-energies. The calculations have been performed using relativistic nuclear spectral functions which include nucleon correlations. Our results are compared with the experimental data of NuTeV and CDHSW.

  11. Tunneling properties of nonplanar molecules in a gas medium

    SciTech Connect (OSTI)

    Bahrami, Mohammad [Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran (Iran, Islamic Republic of); The Abdus Salam ICTP, Strada Costiera 11, I-34151 Trieste (Italy); Bassi, Angelo [Department of Physics, University of Trieste, Strada Costiera 11, I-34151 Trieste (Italy); Istituto Nazionale di Fisica Nucleare, Trieste Section, Via Valerio 2, I-34127 Trieste (Italy)

    2011-12-15T23:59:59.000Z

    We propose a simple, general, and accurate formula for analyzing the tunneling between classical configurations of a nonplanar molecule in a gas medium, as a function of the thermodynamic parameters of the gas. We apply it to two interesting cases: (i) the shift to zero frequency of the inversion line of ammonia, upon an increase in the pressure of the gas; and (ii) the destruction of the coherent tunneling of D{sub 2}S{sub 2} molecules in a He gas. In both cases, we compare our analysis with previous theoretical and experimental results.

  12. A New Cavity Design For Medium Beta Acceleration

    SciTech Connect (OSTI)

    He, Feisi [Peking University, Beijing (China); Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Wang, Haipeng [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Rimmer, Robert A. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

    2014-02-01T23:59:59.000Z

    Heavy duty or cw, superconducting proton and heavy ion accelerators are being proposed and constructed worldwide. The total length of the machine is one of the main drivers in terms of cost. Thus hwr and spoke cavities at medium beta are usually optimized to achieve low surface field and high gradient. A novel accelerating structure at beta=0.5 evolved from spoke cavity is proposed, with lower surface fields but slightly higher heat load. It would be an interesting option for pulsed and cw accelerators with beam energy of more than 200mev/u.

  13. Reference Buildings by Building Type: Medium office | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of ContaminationHubs+18, 2012EnergyBuilding Type: Medium office Reference Buildings by

  14. Reference Buildings by Building Type: Medium office | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of ContaminationHubs+18, 2012EnergyBuilding Type: Medium office Reference Buildings

  15. Reference Buildings by Building Type: Medium office | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of ContaminationHubs+18, 2012EnergyBuilding Type: Medium office Reference

  16. MELCOR technical assessment at SNL

    SciTech Connect (OSTI)

    Kmetyk, L.N.; Tautges, T.J.

    1993-12-01T23:59:59.000Z

    MELCOR is a fully integrated, engineering-level computer code that models the progression of severe accidents in light water reactor (LWR) nuclear power plants, which is being developed at Sandia National Laboratories for the US Nuclear Regulatory Commission (US-NRC). The entire spectrum of severe accident phenomena, including reactor coolant system and containment thermal/hydraulic response, core heatup, degradation and relocation, and fission product release and transport, is treated in MELCOR in a unified framework for both boiling water reactors (PRWs). The MELCOR computer code has been developed to the point that is now being successfully applied in severe accident analyses, particularly in probabilistic risk assessment (PRA) studies. MELCOR was the first of the severe accident analysis code to undergo a formal peer review process. One of the major conclusions of the recent MELCOR Peer Review was the need for a more comprehensive and more systematic program of MELCOR assessment. This report provides a discussion of this technical assessment.

  17. Screening assessment and requirements for a comprehensive assessment: Volume 1, Draft. Columbia River comprehensive impact assessment

    SciTech Connect (OSTI)

    NONE

    1997-04-01T23:59:59.000Z

    To evaluate the impact to the Columbia River from the Hanford Site-derived contaminants, the U.S. Department of Energy, U.S. Environmental Protection Agency, and Washington State Department of Ecology initiated a study referred to as the Columbia River Comprehensive Impact Assessment (CRCIA). To address concerns about the scope and direction of CRCIA as well as enhance regulator, tribal, stockholder, and public involvement, the CRCIA Management Team was formed in August 1995. The Team agreed to conduct CRCIA using a phased approach. The initial phase, includes two components: 1) a screening assessment to evaluate the potential impact to the river, resulting from current levels of Hanford-derived contaminants in order to support decisions on Interim Remedial Measures, and 2) a definition of the essential work remaining to provide an acceptable comprehensive river impact assessment. The screening assessment is described in Part I of this report. The essential work remaining is Part II of this report. The objective of the screening assessment is to identify areas where the greatest potential exists for adverse effects on humans or the environment. Part I of this report discusses the scope, technical approach, and results of the screening assessment. Part II defines a new paradigm for predecisional participation by those affected by Hanford cleanup decisions.

  18. The People Plan is open for discussion... We Want to Hear from YOU!!

    E-Print Network [OSTI]

    Pulfrey, David L.

    ...........................................................................................3 Taking Stock take the time to read and consider this discussion paper. For some, the University provides a job

  19. The Need for Language Repair The Reformation Algorithm Discussion Reformation: A Domain-Independent Algorithm

    E-Print Network [OSTI]

    St Andrews, University of

    The Need for Language Repair The Reformation Algorithm Discussion Reformation: A Domain of Edinburgh University of St Andrews, 27th November 2013 #12;The Need for Language Repair The Reformation Algorithm Discussion Outline 1 The Need for Language Repair 2 The Reformation Algorithm 3 Discussion #12;The

  20. Law School Admissions Panel Law School representatives will discuss the law school admissions

    E-Print Network [OSTI]

    Brinkmann, Peter

    Law School Admissions Panel Law School representatives will discuss the law school admissions process and talk about their respective schools in a panel discussion format. Join us and learn how in Law School Admissions Panel epresentatives will discuss the law school admissions process and talk

  1. Doppler effect in the oscillator radiation process in the medium

    E-Print Network [OSTI]

    Lekdar Gevorgian; Valeri Vardanyan

    2011-10-15T23:59:59.000Z

    The purpose of this paper is to investigate the radiation process of the charged particle passing through an external periodic field in a dispersive medium. In the optical range of spectrum we will consider two cases: first, the source has not eigenfrequency, and second, the source has eigenfrequency. In the first case, when the Cherenkov radiation occurs, the non-zero eigenfrequency produces a paradox for Doppler effect. It is shown that the absence of the eigenfrequency solves the paradox known in the literature. The question whether the process is normal (i.e. hard photons are being radiated under the small angles) or anomalous depends on the law of the medium dispersion. When the source has an eigenfrequency the Doppler effects can be either normal or anomalous. In the X-ray range of the oscillator radiation spectrum we have two photons radiated under the same angle- soft and hard. In this case the radiation obeys to so-called complicated Doppler effect, i.e. in the soft photon region we have anomalous Doppler effect and in the hard photon region we have normal Doppler effect.

  2. REVIEWING PERFORMANCE ASSESSMENTS SUPPORTING

    E-Print Network [OSTI]

    Robert J. Lewis

    2010-01-01T23:59:59.000Z

    Purpose: To summarize current NRC policy and guidance, which should assist in making informed decisions regarding land disposal of unique low-level radioactive waste streams, including disposal of significant quantities of depleted uranium until a new regulation is implemented. Background: In September 2009, NRC staff conducted two public workshops soliciting early public input on major issues associated with a potential rulemaking for land disposal of unique waste streams including, but not limited to, significant quantities of depleted uranium. During these workshops, a number of stakeholders expressed interest or concern with the review of performance assessments supporting land disposal of unique waste streams prior to completion of the rulemaking process. Discussion: The enclosure contains a summary of existing guidance for reviewing performance assessments with a focus on issues associated with the safe disposal of unique waste streams. NRC staff is providing this guidance to the Agreement States for their information, and for distribution to their licensees, as appropriate. If you have any questions regarding this correspondence, please contact me at 301-415-3340 or the individuals named below.

  3. NATURAL RESOURCES ASSESSMENT

    SciTech Connect (OSTI)

    D.F. Fenster

    2000-12-11T23:59:59.000Z

    The purpose of this report is to summarize the scientific work that was performed to evaluate and assess the occurrence and economic potential of natural resources within the geologic setting of the Yucca Mountain area. The extent of the regional areas of investigation for each commodity differs and those areas are described in more detail in the major subsections of this report. Natural resource assessments have focused on an area defined as the ''conceptual controlled area'' because of the requirements contained in the U.S. Nuclear Regulatory Commission Regulation, 10 CFR Part 60, to define long-term boundaries for potential radionuclide releases. New requirements (proposed 10 CFR Part 63 [Dyer 1999]) have obviated the need for defining such an area. However, for the purposes of this report, the area being discussed, in most cases, is the previously defined ''conceptual controlled area'', now renamed the ''natural resources site study area'' for this report (shown on Figure 1). Resource potential can be difficult to assess because it is dependent upon many factors, including economics (demand, supply, cost), the potential discovery of new uses for resources, or the potential discovery of synthetics to replace natural resource use. The evaluations summarized are based on present-day use and economic potential of the resources. The objective of this report is to summarize the existing reports and information for the Yucca Mountain area on: (1) Metallic mineral and mined energy resources (such as gold, silver, etc., including uranium); (2) Industrial rocks and minerals (such as sand, gravel, building stone, etc.); (3) Hydrocarbons (including oil, natural gas, tar sands, oil shales, and coal); and (4) Geothermal resources. Groundwater is present at the Yucca Mountain site at depths ranging from 500 to 750 m (about 1,600 to 2,500 ft) below the ground surface. Groundwater resources are not discussed in this report, but are planned to be included in the hydrology section of future revisions of the ''Yucca Mountain Site Description'' (CRWMS M&O 2000c).

  4. Connection Between the Circumgalactic Medium and the Interstellar Medium of Galaxies:Results from the COS-GASS Survey

    E-Print Network [OSTI]

    Borthakur, Sanchayeeta; Tumlinson, Jason; Bordoloi, Rongmon; Thom, Christopher; Catinella, Barbara; Schiminovich, David; Dave, Romeel; Kauffmann, Guinevere; Moran, Sean M; Saintonge, Amelie

    2015-01-01T23:59:59.000Z

    We present a study exploring the nature and properties of the Circum-Galactic Medium (CGM) and its connection to the atomic gas content in the interstellar medium (ISM) of galaxies as traced by the HI 21 cm line. Our sample includes 45 low-z (0.026-0.049) galaxies from the GALEX Arecibo SDSS Survey. Their CGM was probed via absorption in the spectra of background Quasi-Stellar Objects at impact parameters of 63 to 231 kpc. The spectra were obtained with the Cosmic Origins Spectrograph aboard the Hubble Space Telescope. We detected neutral hydrogen (Ly{\\alpha} absorption-lines) in the CGM of 92% of the galaxies. We find the radial profile of the CGM as traced by the Ly{\\alpha} equivalent width can be fit as an exponential with a scale length of about 0.85 times the virial radius of the dark matter halo. We found no correlation between the orientation of the galaxies and their Ly{\\alpha} equivalent widths. The velocity spread of the circumgalactic gas is consistent with that seen in the atomic gas in the inters...

  5. A program in medium-energy nuclear physics

    SciTech Connect (OSTI)

    Berman, B.L.; Dhuga, K.S.

    1990-01-01T23:59:59.000Z

    This report discusses the following topics: electron-scattering nuclear-structure studies; coincidence electrodisintegration studies of light nuclei; pion scattering and reactions on the three-body nuclei; and pion scattering from shell-model nuclei.

  6. In 2007 a consortium of public purchasers met to discuss the current initiatives to support sustainable procurement in Manitoba. The discussions identified a need for a

    E-Print Network [OSTI]

    Martin, Jeff

    sustainable procurement in Manitoba. The discussions identified a need for a web based tool to provide practical knowledge to public purchasers. A Sustainable Procurement website working group was established, the working group began meeting on a monthly basis to develop the architecture and content of the website

  7. Buoyancy Instabilities in a Weakly Collisional Intracluster Medium

    E-Print Network [OSTI]

    Kunz, Matthew W; Reynolds, Christopher S; Stone, James M

    2012-01-01T23:59:59.000Z

    The intracluster medium of galaxy clusters is a weakly collisional, high-beta plasma in which the transport of heat and momentum occurs primarily along magnetic-field lines. Anisotropic heat conduction allows convective instabilities to be driven by temperature gradients of either sign, the magnetothermal instability (MTI) in the outskirts of non-isothermal clusters and the heat-flux buoyancy-driven instability (HBI) in their cooling cores. We employ the Athena MHD code to investigate the nonlinear evolution of these instabilities, self-consistently including the effects of anisotropic viscosity (i.e. Braginskii pressure anisotropy), anisotropic conduction, and radiative cooling. We highlight the importance of the microscale instabilities that inevitably accompany and regulate the pressure anisotropies generated by the HBI and MTI. We find that, in all but the innermost regions of cool-core clusters, anisotropic viscosity significantly impairs the ability of the HBI to reorient magnetic-field lines orthogonal...

  8. Kansas Consortium Plug-in Hybrid Medium Duty

    SciTech Connect (OSTI)

    None, None

    2012-03-31T23:59:59.000Z

    On September 30, 2008, the US Department of Energy (DoE), issued a cooperative agreement award, DE-FC26-08NT01914, to the Metropolitan Energy Center (MEC), for a project known as “Kansas Consortium Plug-in Hybrid Medium Duty Certification” project. The cooperative agreement was awarded pursuant to H15915 in reference to H. R. 2764 Congressionally Directed Projects. The original agreement provided funding for The Consortium to implement the established project objectives as follows: (1) to understand the current state of the development of a test protocol for PHEV configurations; (2) to work with industry stakeholders to recommend a medium duty vehicle test protocol; (3) to utilize the Phase 1 Eaton PHEV F550 Chassis or other appropriate PHEV configurations to conduct emissions testing; (4) and to make an industry PHEV certification test protocol recommendation for medium duty trucks. Subsequent amendments to the initial agreement were made, the most significant being a revised Scope of Project Objectives (SOPO) that did not address actual field data since it was not available as originally expected. This project was mated by DOE with a parallel project award given to the South Coast Air Quality Management District (SCAQMD) in California. The SCAQMD project involved designing, building and testing of five medium duty plug-in hybrid electric trucks. SCAQMD had contracted with the Electric Power Research Institute (EPRI) to manage the project. EPRI provided the required match to the federal grant funds to both the SCAQMD project and the Kansas Consortium project. The rational for linking the two projects was that the data derived from the SCAQMD project could be used to validate the protocols developed by the Kansas Consortium team. At the same time, the consortium team would be a useful resource to SCAQMD in designating their test procedures for emissions and operating parameters and determining vehicle mileage. The years between award of the cooperative agreements and their completion were problematic for the US and world economies. This resulted in the President and Congress implementing the American Recovery and Reinvestment Act of 2009, abbreviated ARRA (Pub.L. 111-5), commonly referred to as the Stimulus or The Recovery Act. The stimulus money available for transportation projects encouraged the SCAQMD to seek additional funds. In August of 2009, they eventually were awarded an additional $45.5 M, and the scope of their project was expanded to 378 vehicles. However, as a consequence of the stimulus money and the inundation of DOE with applications for new project under the ARRA, the expected time table for producing and testing vehicles was significantly delayed. As a result, these vehicles were not available for validating the protocols developed by the Kansas Consortium. Therefore, in April of 2011, the Scope of Project Objectives (SOPO) for the project was revised, and limited to producing the draft protocol for PHEV certification as its deliverable.

  9. Heating and Acceleration of Intracluster Medium Electrons by Turbulence

    E-Print Network [OSTI]

    Vahé Petrosian; William E. East

    2008-02-06T23:59:59.000Z

    In this paper we investigate the feasibility of bremsstrahlung radiation from `nonthermal' electrons as a source of hard X-rays from the intracluster medium of clusters of galaxies. With an exact treatment of the Coulomb collisions in a Fokker-Planck analysis of the electron distribution we find that the severe difficulties with lifetimes of `nonthermal' particles found earlier by Petrosian (2001) using a cold target model remain problematic. We then address possible acceleration of background electrons into a nonthermal tail. We assume a simplified but generic acceleration rate and determine the expected evolution of an initially Maxwellian distribution of electrons. We find that strong nonthermal components arise only for rapid rate of acceleration which also heats up the entire plasma. These results confirm the conclusion that if the observed `nonthermal' excesses are due to some process accelerating the background thermal electrons this process must be short lived.

  10. Wavelength calibration of the JWST-MIRI medium resolution spectrometer

    E-Print Network [OSTI]

    Martinez-Galarza, J R; Hernan-Caballero, A; Azzollini, R; Glasse, A; Kendrew, S; Brandl, B; Lahuis, F

    2010-01-01T23:59:59.000Z

    We present the wavelength and spectral resolution characterisation of the Integral Field Unit (IFU) Medium Resolution Spectrometer for the Mid-InfraRed Instrument (MIRI), to fly onboard the James Webb Space Telescope in 2014. We use data collected using the Verification Model of the instrument and develop an empirical method to calibrate properties such as wavelength range and resolving power in a portion of the spectrometer's full spectral range (5-28 microns). We test our results against optical models to verify the system requirements and combine them with a study of the fringing pattern in the instrument's detector to provide a more accurate calibration. We show that MIRI's IFU spectrometer will be able to produce spectra with a resolving power above R=2800 in the wavelength range 6.46-7.70 microns, and that the unresolved spectral lines are well fitted by a Gaussian profile.

  11. Medium Duty ARRA Data Reporting and Analysis (Presentation)

    SciTech Connect (OSTI)

    Walkowicz, K.

    2014-06-01T23:59:59.000Z

    This project compiles medium-duty (MD) aggregated deployment data and provides the compiled detailed analyses to industry. The U.S. Department of Energy's (DOE's) American Recovery and Reinvestment Act (ARRA) deployment and demonstration projects are helping to commercialize technologies for all-electric vehicles, electrified accessories, and electric charging infrastructure. Over 3.2 million miles of in-service all-electric MD truck data from 560 different vehicles have been collected since 2011, and usage data from over 1,000 truck electrification sites have been collected since 2013. Through the DOE's Vehicle Technologies Office, NREL is working to analyze real-time data from these deployment and demonstration projects to quantify the benefits: results and summary statistics are made available through the NREL website as quarterly and annual reports; 23 aggregated reports have been published on the performance and operation of these vehicles; and detailed data are being extracted to help further understand battery use and performance.

  12. Ionization front-driven turbulence in the clumpy interstellar medium

    E-Print Network [OSTI]

    Thomas Peters; Robi Banerjee; Ralf S. Klessen

    2008-08-20T23:59:59.000Z

    We present 3D radiation-gasdynamical simulations of an ionization front running into a dense clump. In our setup, a B0 star irradiates an overdensity which is at a distance of 10 pc and modelled as a supercritical 100 M_sol Bonnor-Ebert sphere. The radiation from the star heats up the gas and creates a shock front that expands into the interstellar medium. The shock compresses the clump material while the ionizing radiation heats it up. The outcome of this "cloud-crushing" process is a fully turbulent gas in the wake of the clump. In the end, the clump entirely dissolves. We propose that this mechanism is very efficient in creating short-living supersonic turbulence in the vicinity of massive stars.

  13. Lorentz-symmetry violating decays in a medium

    SciTech Connect (OSTI)

    Nieves, Jose F.; Pal, Palash B. [Laboratory of Theoretical Physics, Department of Physics, P.O. Box 23343, University of Puerto Rico, Rio Piedras, 00931-3343 (Puerto Rico); Saha Institute of Nuclear Physics, 1/AF Bidhan-Nagar, Calcutta 700064 (India)

    2008-06-01T23:59:59.000Z

    Various decay processes, such as the decay of a spin-1 particle into two photons or the gravitational decay of a spin-1/2 fermion, are forbidden in the vacuum by a combination of requirements, including angular momentum conservation, Lorentz invariance, and gauge invariance. We show that such processes can occur in a medium, such as a thermal background of particles, even if it is homogeneous and isotropic. We carry out a model-independent analysis of the vertex function for such processes in terms of a set of form factors, and show that the amplitude can be nonzero while remaining consistent with the symmetry principles mentioned above. The results simulate Lorentz symmetry violating effects, although in this case they arise from completely Lorentz-invariant physics.

  14. Soot blower using fuel gas as blowing medium

    DOE Patents [OSTI]

    Tanca, Michael C. (Tariffville, CT)

    1982-01-01T23:59:59.000Z

    A soot blower assembly (10) for use in combination with a coal gasifier (14). The soot blower assembly is adapted for use in the hot combustible product gas generated in the gasifier as the blowing medium. The soot blower lance (20) and the drive means (30) by which it is moved into and out of the gasifier is housed in a gas tight enclosure (40) which completely surrounds the combination. The interior of the enclosure (40) is pressurized by an inert gas to a pressure level higher than that present in the gasifier so that any combustible product gas leaking from the soot blower lance (20) is forced into the gasifier rather than accumulating within the enclosure.

  15. Medium-size high-temperature gas-cooled reactor

    SciTech Connect (OSTI)

    Peinado, C.O.; Koutz, S.L.

    1980-08-01T23:59:59.000Z

    This report summarizes high-temperature gas-cooled reactor (HTGR) experience for the 40-MW(e) Peach Bottom Nuclear Generating Station of Philadelphia Electric Company and the 330-MW(e) Fort St. Vrain Nuclear Generating Station of the Public Service Company of Colorado. Both reactors are graphite moderated and helium cooled, operating at approx. 760/sup 0/C (1400/sup 0/F) and using the uranium/thorium fuel cycle. The plants have demonstrated the inherent safety characteristics, the low activation of components, and the high efficiency associated with the HTGR concept. This experience has been translated into the conceptual design of a medium-sized 1170-MW(t) HTGR for generation of 450 MW of electric power. The concept incorporates inherent HTGR safety characteristics (a multiply redundant prestressed concrete reactor vessel (PCRV), a graphite core, and an inert single-phase coolant) and engineered safety features (core auxiliary cooling, relief valve, and steam generator dump systems).

  16. Medium induced jet absorption at relativistic heavy ion collisions

    E-Print Network [OSTI]

    Axel Drees; Haidong Feng; Jiangyong Jia

    2005-05-31T23:59:59.000Z

    The dense medium created in Au + Au collisions at the Relativistic Heavy-Ion Collider (RHIC) significantly suppresses particle production from hard scattering processes and their characteristic back-to-back angular correlation. We present a simple model of jet absorption in dense matter which incorporates a realistic nuclear geometry. Our calculations are performed at the jet level and assume independent jet fragmentation in the vacuum. This model describes quantitatively the centrality dependence of the observed suppression of the high $p_T$ hadron yield and of the back-to-back angular correlations. The azimuthal anisotropy of high $p_T$ particle production can not be accounted for using a realistic nuclear geometry.

  17. Strategic Plan Environmental Assessment

    E-Print Network [OSTI]

    Strategic Plan Environmental Assessment 2009 Clinical Center National Institutes of Health U Institutes of Health Strategic Plan ­ Environmental Assessment 2009 Contents Executive Summary environmental assessment to determine Clinical Center strengths, weaknesses, opportunities, and threats

  18. DETECTION OF DIFFUSE NEUTRAL INTRAGROUP MEDIUM IN HICKSON COMPACT GROUPS

    SciTech Connect (OSTI)

    Borthakur, Sanchayeeta; Yun, Min Su [Astronomy Department, University of Massachusetts, Amherst, MA 01003 (United States); Verdes-Montenegro, Lourdes, E-mail: sanch@astro.umass.ed, E-mail: myun@astro.umass.ed, E-mail: lourdes@iaa.e [Instituto de Astrofisica de AndalucIa, CSIC, Apdo. Correos 3004, E-18080 Granada (Spain)

    2010-02-10T23:59:59.000Z

    We present new Green Bank Telescope (GBT) 21 cm neutral hydrogen (H I) observations of a complete distance-limited sample of 22 Hickson Compact Groups (HCGs) with at least four true members. We detected an average H I mass of 8 x 10{sup 9} M{sub sun} (median = 6 x 10{sup 9} M{sub sun}), which is significantly larger than previous single-dish measurements. Consequently, the H I deficiencies for these HCGs have been reduced, although not completely eliminated. Spectral comparison of the GBT data with complementary Very Large Array data shows significant H I excess in the GBT spectra. The observed excess is primarily due to the high surface brightness (HSB) sensitivity of the GBT detecting diffuse, low column density H I in these groups. The excess gas forms a faint diffused neutral medium which is an intermediate stage in the evolution of HSB H I tidal debris in the intragroup medium (IGM) before it is fully ionized. The excess gas mass fraction, (M(H I){sub GBT} - M(H I){sub VLA})/M(H I){sub GBT}, for our complete sample varies from 5% to 81% with an average of 36% (median = 30%). The excess gas mass fraction is highest in slightly H I deficient groups where the tidal debris has had enough time to evolve. We also find the excess gas content increases with the evolutionary phase of the group described in Verdes-Montenegro et al. Theoretical calculations indicate that an H I cloud of radius >= 200 pc would survive in an IGM of 2 x 10{sup 6} K for more than the typical dynamical lifetime of a group. However, smaller clouds get evaporated and assimilated into the hot IGM in a much shorter timescale.

  19. Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology Landscape

    Broader source: Energy.gov [DOE]

    Bill Gates and Deputy Secretary of Energy Daniel Poneman discuss the future of energy technology during the twenty-second Plenary Meeting of the Nuclear Suppliers Group.

  20. ORISE: Hazard Assessments

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

    assesses both chemical and radiation exposures, and conducts both internal and external radiation dose assessments. Our capabililities include: Linkage of exposure data to site...

  1. Magnetic and electric contributions to the energy loss in a dynamical QCD medium

    E-Print Network [OSTI]

    Magdalena Djordjevic

    2011-05-21T23:59:59.000Z

    The computation of radiative energy loss in a finite size QCD medium with dynamical constituents is a key ingredient for obtaining reliable predictions for jet quenching in ultra-relativistic heavy ion collisions. It was previously shown that energy loss in dynamical QCD medium is significantly higher compared to static QCD medium. To understand this difference, we here analyze magnetic and electric contributions to energy loss in dynamical QCD medium. We find that the significantly higher energy loss in the dynamical case is entirely due to appearance of magnetic contribution in the dynamical medium. While for asymptotically high energies, the energy loss in static and dynamical medium approach the same value, we find that the physical origin of the energy loss in these two cases is different.

  2. Dying Green A Film Screening and Panel Discussion about Green Burial

    E-Print Network [OSTI]

    Virginia Tech

    Dying Green A Film Screening and Panel Discussion about Green Burial March 20, 2014 6:00pm ­ 8:00pm to rest. The "Green Burial" movement is catching on in the U.S., and green cemetery options are now and panel discussion of the award-winning documentary, Dying Green (2011). Panel participants include Joshua

  3. Climate Insights 101 Questions and Discussion Points: Module 1, Lesson 4: An Introduction to Climate Modelling

    E-Print Network [OSTI]

    Pedersen, Tom

    Climate Insights 101 Questions and Discussion Points: Module 1, Lesson 4: An Introduction to Climate Modelling 1 Climate Insights 101 Questions and Discussion Points Module 1, Lesson 4: An Introduction to Climate Modelling Available at http://pics.uvic.ca/education/climate-insights-101 Updated May

  4. Handling QoS in MDA: a discussion on availability and dynamic reconfiguration

    E-Print Network [OSTI]

    van Sinderen, Marten

    Handling QoS in MDA: a discussion on availability and dynamic reconfiguration 1 João Paulo Almeidaa-Driven Architecture (MDA) approach. In order to illustrate our discussion, we consider the introduction-Driven Architecture (MDA) approach [9]. The concept of platform-independence plays a central role in MDA development

  5. Sugar Competition Results Discussion Future Sugar: A SAT-based CSP Solver

    E-Print Network [OSTI]

    Banbara, Mutsunori

    Sugar Competition Results Discussion Future . . . .. . . Sugar: A SAT-based CSP Solver --Results summary of the 3rd intertional CSP solver competition-- Naoyuki Tamura, Tomoya Tanjo, Mutsunori Banbara-based CSP Solver --Results summary of #12;Sugar Competition Results Discussion Future Outline .. Sugar CSP

  6. Non-Coherent Capacity of Secret-Key Agreement with Public Discussion

    E-Print Network [OSTI]

    Khisti, Ashish

    1 Non-Coherent Capacity of Secret-Key Agreement with Public Discussion Anurag Agrawal, Zouheir--We study the non-coherent capacity of secret-key agreement with public discussion over i.i.d. Rayleigh state information (CSI). We present two results. At high Signal-to-Noise Ratio (SNR), the secret

  7. Secret-Key Agreement over Non-Coherent Block-Fading Channels with Public Discussion

    E-Print Network [OSTI]

    Khisti, Ashish

    1 Secret-Key Agreement over Non-Coherent Block-Fading Channels with Public Discussion Ashish Khisti Member, IEEE Abstract Fundamental limits of secret-key generation over a two-way, reciprocal and block establish upper and lower bounds on the secret-key generation capacity with public discussion. The upper

  8. Non-Coherent Capacity of Secret-Key Agreement with Public Discussion

    E-Print Network [OSTI]

    Khisti, Ashish

    1 Non-Coherent Capacity of Secret-Key Agreement with Public Discussion Anurag Agrawal, Zouheir-coherent capacity of secret-key agreement with public discussion, where neither the sender nor the receivers have Signal-to-Noise Ratio (SNR), the secret-key capacity is bounded in SNR, regardless of the number

  9. Linear and nonlinear light propagations in a Doppler-broadened medium via electromagnetically induced transparency

    SciTech Connect (OSTI)

    Li Liang; Huang Guoxiang [Department of Physics and Institute of Theoretical Physics, East China Normal University, Shanghai 200062 (China); State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China and Institute of Nonlinear Physics, Zhejiang Normal University, Zhejiang 321004 (China)

    2010-08-15T23:59:59.000Z

    We present a systematic theoretical study to deal with linear and nonlinear light propagations in a Doppler-broadened three-level {Lambda} system via electromagnetically induced transparency (EIT), with incoherent population exchange between two lower energy levels taken into account. Through a careful analysis of base state and linear excitation, we show that the EIT condition of the system is given by |{Omega}{sub c}|{sup 2{gamma}}{sub 31}>>2{gamma}{sub 21{Delta}{omega}D}{sup 2}, where {Omega}{sub c} is half the Rabi frequency of the control field, {Delta}{omega}{sub D} is the Doppler width, and {gamma}{sub jl} is the decay rate of the coherence between states |j> and |l>. Under this condition, the effect of incoherent population exchange is insignificant, while dephasing dominates the decoherence of the system. This condition also ensures the validity of the weak nonlinear perturbation theory used in this work for solving the Maxwell-Bloch equations with inhomogeneous broadening. We then investigate the nonlinear propagation of the probe field and show that it is possible to form temporal optical solitons in the Doppler-broadened medium. Such solitons have ultraslow propagating velocity and can be generated in very low light power. The possibility of realizing (1+1)-dimensional and (2+1)-dimensional spatial optical solitons in the adiabatic regime of the system is also discussed.

  10. Evaluation of intrusion sensors and video assessment in areas of restricted passage

    SciTech Connect (OSTI)

    Hoover, C.E.; Ringler, C.E.

    1996-04-01T23:59:59.000Z

    This report discusses an evaluation of intrusion sensors and video assessment in areas of restricted passage. The discussion focuses on applications of sensors and video assessment in suspended ceilings and air ducts. It also includes current and proposed requirements for intrusion detection and assessment. Detection and nuisance alarm characteristics of selected sensors as well as assessment capabilities of low-cost board cameras were included in the evaluation.

  11. NRCS CSREES Watershed Assessments

    E-Print Network [OSTI]

    .E.A.P. Conservation Effects Assessment Project #12;Measuring the Environmental Benefits of Conservation;Conservation Effects Assessment Project Please turn off the ringers on your cell phones, pagers, blackberries The Conservation EffectsThe Conservation Effects Assessment ProjectAssessment Project (CEAP)(CEAP) #12;Scope

  12. ASSESSMENT FOR THE SOUTHWEST

    E-Print Network [OSTI]

    Wong, Pak Kin

    SERVICE CLIMATE CHANGE & CULTURAL RESOURCE PLANNING PROGRAM 17 EARTH SYSTEM MODELS 18 CLIMATE ASSESSMENTS

  13. In-Use Performance Results of Medium Duty Electric Vehicles (Presentation)

    SciTech Connect (OSTI)

    Walkowicz, K.

    2012-07-01T23:59:59.000Z

    This presentation describes a DOE program to monitor and report on vehicle performance and energy utilization of medium-duty and heavy-duty electric vehicles.

  14. Clean Cities' Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01T23:59:59.000Z

    Guide describes the alternative fuel and advanced medium- and heavy-duty vehicles available on the market, including buses, vans, refuse haulers, and more.

  15. antigen predicts medium-term: Topics by E-print Network

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

    in both disembodied and embodied technological change, research & development, and the efficiency of resource utilization. We then develop a model to explain the medium term...

  16. addresses medium-term development: Topics by E-print Network

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

    in both disembodied and embodied technological change, research & development, and the efficiency of resource utilization. We then develop a model to explain the medium term...

  17. Vehicle Technologies Office Merit Review 2014: Medium and Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

    Presentation given by National Renewable Energy Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about medium...

  18. Vehicle Technologies Office Merit Review 2015: Medium and Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

    Presentation given by National Renewable Energy Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about medium...

  19. Vehicle Technologies Office Merit Review 2014: Medium Duty ARRA Data Reporting and Analysis

    Broader source: Energy.gov [DOE]

    Presentation given by National Renewable Energy Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about medium...

  20. Vehicle Technologies Office Merit Review 2015: Medium Duty ARRA Data Reporting and Analysis

    Broader source: Energy.gov [DOE]

    Presentation given by National Renewable Energy Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about medium...

  1. The Results of More Than 250 Industrial Assessments for Manufacturing by the Louisiana Industrial Assessment Center for the Past Ten Years

    E-Print Network [OSTI]

    Kozman, T.; Lee, J.

    2010-01-01T23:59:59.000Z

    The Results (Lessons Learned) of more than 250 E nergy Audits (Industrial Assessments) for Manufacturers by the Louisiana Industrial Assessment Center for the past Ten Years Theodore Kozman Jim Lee Director Deputy Director... Industrial Assessment Center University of Louisiana Lafayette Abstrac t This paper and discussion presents the summary and results of energy audits or assessments conducted by the University of Louisiana Lafayette Industrial Assessment Center...

  2. Risk Assessment Technical Expert Working Group (RWG) Conference Call Minutes, March 8, 2010

    Broader source: Energy.gov [DOE]

    Risk Assessment Technical Experts Working Group Charter – The steeringcommittee discussed the draft charter. Two recommended changes were agreed upon:• A sentence will be added to identify that the...

  3. Risk Assessment Technical Expert Working Group (RWG)Conference Call Minutes, February 20, 2010

    Broader source: Energy.gov [DOE]

    Risk Assessment Technical Experts Working Group Charter – discussed whoshould sign and at what level the charter should be authorized. It was concluded thatthe Under Secretaries as the Central...

  4. SU-C-12A-03: The Impact of Contrast Medium On Radiation Dose in CT: A Systematic Evaluation Across 58 Patient Models

    SciTech Connect (OSTI)

    Sahbaee, P [NC State University, Raleigh, NC (United States); Samei, E [Duke University Medical Center, Durham, NC (United States); Segars, W [Duke University, Durham, NC (United States)

    2014-06-01T23:59:59.000Z

    Purpose: To assess the effect of contrast medium on radiation dose as a function of time via Monte Carlo simulation from the liver CT scan across a library of 5D XCAT models Methods: A validated Monte Carlo simulation package (PENELOPE) was employed to model a CT system (LightSpeed 64 VCT, GE Healthcare). The radiation dose was estimated from a common abdomen CT examination. The dose estimation was performed on a library of adult extended cardiac-torso (5D XCAT) phantoms (35 male, 23 female, mean age 51.5 years, mean weight 80.2 kg). The 5D XCAT models were created based on patient-specific iodine concentration-time results from our computational contrast medium propagation model for different intravenous injection protocols. To enable a dynamic estimation of radiation dose, each organ in the model was assigned to its own time-concentration curve via the PENELOPE package, material.exe. Using the Monte Carlo, for each scan time point after the injection, 80 million photons were initiated and tracked through the phantoms. Finally, the dose to the liver was tallied from the deposited energy. Results: Monte Carlo simulation results of radiation dose delivered to the liver from the XCAT models indicated up to 30% increase in dose for different time after the administration of contrast medium. Conclusion: The contrast enhancement is employed in over 60% of imaging modalities, which not only remarkably affects the CT image quality, but also increases the radiation dose by as much as 70%. The postinjection multiple acquisition in several enhanced CT protocols, makes the radiation dose increment through the use of contrast medium, an inevitable factor in optimization of these protocols. The relationship between radiation dose and injected contrast medium as a function of time studied in this work allows optimization of contrast administration for vulnerable individuals.

  5. HVDC power transmission technology assessment

    SciTech Connect (OSTI)

    Hauth, R.L.; Tatro, P.J.; Railing, B.D. [New England Power Service Co., Westborough, MA (United States); Johnson, B.K.; Stewart, J.R. [Power Technologies, Inc., Schenectady, NY (United States); Fink, J.L.

    1997-04-01T23:59:59.000Z

    The purpose of this study was to develop an assessment of the national utility system`s needs for electric transmission during the period 1995-2020 that could be met by future reduced-cost HVDC systems. The assessment was to include an economic evaluation of HVDC as a means for meeting those needs as well as a comparison with competing technologies such as ac transmission with and without Flexible AC Transmission System (FACTS) controllers. The role of force commutated dc converters was to be assumed where appropriate. The assessment begins by identifying the general needs for transmission in the U.S. in the context of a future deregulated power industry. The possible roles for direct current transmission are then postulated in terms of representative scenarios. A few of the scenarios are illustrated with the help of actual U.S. system examples. non-traditional applications as well as traditional applications such as long lines and asynchronous interconnections are discussed. The classical ``break-even distance`` concept for comparing HVDC and ac lines is used to assess the selected scenarios. The impact of reduced-cost converters is reflected in terms of the break-even distance. This report presents a comprehensive review of the functional benefits of HVDC transmission and updated cost data for both ac and dc system components. It also provides some provocative thoughts on how direct current transmission might be applied to better utilize and expand our nation`s increasingly stressed transmission assets.

  6. Probing X-ray Absorption and Optical Extinction in the Interstellar Medium Using Chandra Observations of Supernova Remnants

    E-Print Network [OSTI]

    Foight, Dillon; Ozel, Feryal; Slane, Patrick

    2015-01-01T23:59:59.000Z

    We present a comprehensive study of interstellar X-ray extinction using the extensive Chandra supernova remnant archive and use our results to refine the empirical relation between the hydrogen column density and optical extinction. In our analysis, we make use of the large, uniform data sample to assess various systematic uncertainties in the measurement of the interstellar X-ray absorption. Specifically, we address systematic uncertainties that originate from (i) the emission models used to fit supernova remnant spectra, (ii) the spatial variations within individual remnants, (iii) the physical conditions of the remnant such as composition, temperature, and non-equilibrium regions, and (iv) the model used for the absorption of X-rays in the interstellar medium. Using a Bayesian framework to quantify these systematic uncertainties, and combining the resulting hydrogen column density measurements with the measurements of optical extinction toward the same remnants, we find the empirical relation NH = (2.87+/-...

  7. Brief history of the metal accumulation in the intracluster medium

    E-Print Network [OSTI]

    S. Ettori

    2005-07-09T23:59:59.000Z

    We use models of the rates of Type Ia supernovae (SNe Ia) and core-collapse supernovae, built in such a way that both are consistent with recent observational constraints at zaccumulation in the intra-cluster medium. We show that these SN rates, in unit of SN number per comoving volume and rest-frame year, provide on average a total amount of Iron that is marginally consistent with the value measured in galaxy clusters in the redshift range 0-1, and a relative evolution with redshift that is in agreement with the observational constraints up to z~1.2. Moreover, we verify that the predicted metals to Iron ratios reproduce the measurements obtained in nearby clusters through X-ray analysis, implying that (1) about half of the Iron mass and >75 per cent of the Nickel mass observed locally are produced by SN Ia ejecta, (2) the SN Ia contribution to the metal budget decreases steeply with redshift and by z~1 is already less than half of the local amount and (3) a transition in the abundance ratios relative to the Iron is present between redshifts ~0.5 and 1.4, with core-collapse SN products becoming dominant at higher redshifts.

  8. On the Crystallinity of Silicate Dust in the Interstellar Medium

    E-Print Network [OSTI]

    M. P. Li; G. Zhao; Aigen Li

    2008-08-29T23:59:59.000Z

    An accurate knowledge of the mineralogy (chemical composition and crystal structure) of the silicate dust in the interstellar medium (ISM) is crucial for understanding its origin in evolved stars, the physical and chemical processing in the ISM, and its subsequent incorporation into protostellar nebulae, protoplanetary disks and cometary nuclei where it is subjected to further processing. While an appreciable fraction of silicate dust in evolved stars, in protoplanetary disks around pre-main sequence stars, in debris disks around main sequence stars, and in cometary nuclei is found to be in crystalline form, very recent infrared spectroscopic studies of the dust along the sightline toward the Galactic center source Sgr A* placed an upper limit of ~1.1% on the silicate crystalline fraction, well below the previous estimates of ~5% or ~60% derived from the observed 10 micron absorption profile for the local ISM toward Cyg OB2 No.12. Since the sightline toward SgrA contains molecular cloud materials as revealed by the detection of the 3.1 and 6.0 micron water ice absorption features, we argue that by taking into account the presence of ice mantles on silicate cores, the upper limit on the degree of silicate crystallinity in the ISM is increased to ~3--5%.

  9. Characterizing the Jeans Filtering Scale of the Intergalactic Medium

    E-Print Network [OSTI]

    Kulkarni, Girish; Oñorbe, Jose; Rorai, Alberto; Springel, Volker

    2015-01-01T23:59:59.000Z

    The thermal state of the intergalactic medium (IGM) at z nature and timing of cosmic reionization events, but its inference from the Ly-alpha forest is degenerate with the 3-D structure of the IGM on ~100 kpc scales, where, analogous to the classical Jeans argument, the pressure of the T~$10^4$ K gas supports it against gravity. We simulate the IGM using smoothed particle hydrodynamics, and find that, at z gas density power spectrum does not exhibit the expected Jeans filtering cutoff, because dense gas in collapsed halos dominates the small-scale power masking pressure smoothing effects. We introduce a new statistic, the real-space Ly-alpha flux, $F_\\mathrm{real}$, which naturally suppresses dense gas, and is thus robust against the poorly understood physics of galaxy formation, revealing pressure smoothing in the diffuse IGM. The $F_\\mathrm{real}$ power spectrum is accurately described by a simple fitting function with cutoff at $\\lambda_F$, allowing us to rigorously quanti...

  10. Corrections to Eikonal Approximation for Nuclear Scattering at Medium Energies

    E-Print Network [OSTI]

    Micah Buuck; Gerald A. Miller

    2014-06-12T23:59:59.000Z

    The upcoming Facility for Rare Isotope Beams (FRIB) at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University has reemphasized the importance of accurate modeling of low energy nucleus-nucleus scattering. Such calculations have been simplified by using the eikonal approximation. As a high energy approximation, however, its accuracy suffers for the medium energy beams that are of current experimental interest. A prescription developed by Wallace \\cite{Wallace:1971zz,Wallace:1973iu} that obtains the scattering propagator as an expansion around the eikonal propagator (Glauber approach) has the potential to extend the range of validity of the approximation to lower energies. Here we examine the properties of this expansion, and calculate the first-, second-, and third-order corrections for the scattering of a spinless particle off of a ${}^{40}$Ca nucleus, and for nuclear breakup reactions involving ${}^{11}$Be. We find that, including these corrections extends the lower bound of the range of validity of the down to energies of 40 MeV. At that energy the corrections provide as much as a 15\\% correction to certain processes.

  11. The Impact of Galactic Feedback on the Circumgalactic Medium

    E-Print Network [OSTI]

    Suresh, Joshua; Vogelsberger, Mark; Genel, Shy; Torrey, Paul; Sijacki, Debora; Springel, Volker; Hernquist, Lars

    2015-01-01T23:59:59.000Z

    Galactic feedback strongly affects the way galactic environments are enriched. We examine this connection by performing a suite of cosmological hydrodynamic simulations, exploring a range of parameters based on the galaxy formation model developed in Vogelsberger et al. 2013 (henceforth V13). We examine the effects of AGN feedback, wind mass loading, wind specific energy, and wind metal-loading on the properties of the circumgalactic medium (CGM) of galaxies with $M_\\text{halo} > 10^{11} M_\\odot$. Note that while the V13 model was tuned to match observations including the stellar mass function, no explicit tuning was done for the CGM. The wind energy per unit outflow mass has the most significant effect on the CGM enrichment. High energy winds launch metals far beyond the virial radius. AGN feedback also has a significant effect, but only at $z < 3$. We compare to high redshift HI and CIV observations. All our simulations produce the observed number of Damped Lyman-$\\alpha$ Absorbers. At lower column densi...

  12. Determination of electromagnetic medium from the Fresnel surface

    E-Print Network [OSTI]

    Matias F. Dahl

    2011-03-16T23:59:59.000Z

    We study Maxwell's equations on a 4-manifold where the electromagnetic medium is described by an antisymmetric $2\\choose 2$-tensor $\\kappa$. In this setting, the Tamm-Rubilar tensor density determines a polynomial surface of fourth order in each cotangent space. This surface is called the Fresnel surface and acts as a generalisation of the light-cone determined by a Lorentz metric; the Fresnel surface parameterises electromagnetic wave-speed as a function of direction. Favaro and Bergamin have recently proven that if $\\kappa$ has only a principal part and if the Fresnel surface of $\\kappa$ coincides with the light cone for a Lorentz metric $g$, then $\\kappa$ is proportional to the Hodge star operator of $g$. That is, under additional assumptions, the Fresnel surface of $\\kappa$ determines the conformal class of $\\kappa$. The purpose of this paper is twofold. First, we provide a new proof of this result using Gr\\"obner bases. Second, we describe a number of cases where the Fresnel surface does not determine the conformal class of the original $2\\choose 2$-tensor $\\kappa$. For example, if $\\kappa$ is invertible we show that $\\kappa$ and $\\kappa^{-1}$ have the same Fresnel surfaces.

  13. Commercialization of Medium Voltage HTS Triax TM Cable Systems

    SciTech Connect (OSTI)

    Knoll, David

    2012-12-31T23:59:59.000Z

    The original project scope that was established in 2007 aimed to install a 1,700 meter (1.1 mile) medium voltage HTS Triax{TM} cable system into the utility grid in New Orleans, LA. In 2010, however, the utility partner withdrew from the project, so the 1,700 meter cable installation was cancelled and the scope of work was reduced. The work then concentrated on the specific barriers to commercialization of HTS cable technology. The modified scope included long-length HTS cable design and testing, high voltage factory test development, optimized cooling system development, and HTS cable life-cycle analysis. In 2012, Southwire again analyzed the market for HTS cables and deemed the near term market acceptance to be low. The scope of work was further reduced to the completion of tasks already started and to testing of the existing HTS cable system in Columbus, OH. The work completed under the project included: • Long-length cable modeling and analysis • HTS wire evaluation and testing • Cable testing for AC losses • Optimized cooling system design • Life cycle testing of the HTS cable in Columbus, OH • Project management. The 200 meter long HTS Triax{TM} cable in Columbus, OH was incorporated into the project under the initial scope changes as a test bed for life cycle testing as well as the site for an optimized HTS cable cooling system. The Columbus cable utilizes the HTS TriaxTM design, so it provided an economical tool for these of the project tasks.

  14. The Galactic center interstellar medium as seen by ISO

    E-Print Network [OSTI]

    N. J. Rodriguez-Fernandez; J. Martin-Pintado

    2004-02-09T23:59:59.000Z

    This paper deals with the heating and the ionization of the interstellar medium (ISM) in the 500 central pc of the Milky Way (hereafter Galactic center, GC). We review the results of the Infrared Space Observatory (ISO) observations of a sample of GC molecular clouds located far from thermal radiocontinuum or far-infrared sources. For the first time, we have been able to study in detail the dust continuum spectra from 40 to 190 microns founding a warm (30-40 K) dust component in addition to the well known 15-20 K component. Fine-structure lines observations have revealed the presence of diffuse ionized gas associated with the molecular clouds. The effective temperature of the ionizing radiation is higher than 33000 K. ISO has also allow us to measure the fraction of warm (~ 150 K) H2 in the GC clouds, which is on average of 30 %. The observations of the warm (a few 100 K) neutral gas are compatible with a Photon Dominated Region (PDR) scenario.

  15. The Galactic Center Interstellar Medium: from ISO to FIRST

    E-Print Network [OSTI]

    N. J. Rodriguez-Fernandez; J. Martin-Pintado

    2001-01-19T23:59:59.000Z

    The Infrared Space Observatory (ISO) has shown the complexity of the Galactic center (GC) Interstellar medium (ISM) detecting, not only large column densities of warm molecular gas (H2), but the emission of neutral atoms and ions of low ionization potential (CII, OI, SiII,...) that should arise in shocked or photon-dominated regions (PDRs). In addition, ISO has also detected emission from ions like SIII, NeII, ArII, or NII (in some clouds we have even detected NeIII and OIII) that should arise from HII regions that were previously unsuspected due to the non-detection of Hydrogen recombination lines. Here we review some ISO results on the large scale study of the GC ISM and in particular, on the heating mechanisms of the clouds. Although, shocks should play an important role on the physics and chemistry of the GC ISM, ISO shows that the effect of radiation on the heating of the gas cannot be ruled out with the simple argument that the dust temperature is lower than that of the gas.

  16. On the enrichment of the intergalactic medium by galactic winds

    E-Print Network [OSTI]

    Biman Nath; Neil Trentham

    1997-07-16T23:59:59.000Z

    Observations of metal lines in $\\lyal$ absorption systems of small H~I column density and their ubiquitous nature suggest that the intergalactic medium (IGM) was enriched to about $Z \\sim 0.01 \\> Z_{\\odot}$ by a redshift $z \\sim 3$. We investigate the role of winds from small star-forming galaxies at high $z$ in enriching the IGM. The existence of large numbers of small galaxies at high $z$ follows naturally from hierarchical clustering theories (e.g. CDM). For analytical simplicity we assume that the galactic winds escape the galaxies at a single characteristic redshift $z_{in}$, and we model the galactic winds as spherical shock waves propagating through the IGM. We then calculate the probability distribution of the metallicity of the IGM, as a function of time (for different values of $z_{in}$), adopting plausible galaxy mass functions (from Press-Schechter formalism), cooling physics, star-formation efficiencies, gas ejection dynamics, and nucleosynthesis yields. We compare this expected distribution with the observed distribution of metallicities in the Ly$\\alpha$ forest at $z=3$, the metal poor stars in the halo of our Galaxy, and with other observational constraints on such a scenario. We find that galactic winds at high $z$ could have enriched the IGM to a mean metallicity of $Z \\sim 0.01 Z_{\\odot}$ at $z \\sim 3$, with a standard deviation of the same order, if $z_{in} \\la 5$, and that this satisfies all the observational constraints.

  17. Prospects for future climate change and the reasons for early action: critical review discussion

    SciTech Connect (OSTI)

    Sylvia A. Edgerton; Mark Z. Jacobson; Alberto Ayala; Carol E. Whitman; Mark C. Trexler [Pacific Northwest National Laboratory, Richland, WA (United States)

    2008-11-15T23:59:59.000Z

    This paper presents a discussion of the 2008 A&WMA Critical Review (see Coal Abstracts Oct 2008 00143) by invited panellists and others who chose to comment. It includes written submissions and presentation of transcripts that were, in a few instances, edited for conciseness, to minimize redundancy, and to provide supporting and instructional citations. Substantial deviations from the intent of a discussant are unintentional and can be addressed in a follow-up letter to the journal. The invited discussants are: Dr. Mark Jacobson, Dr. Albertao Ayala, Dr Carol Whiteman and Dr Mark Trexlor. 4 figs.

  18. Medical research: assessing the benefits to society

    E-Print Network [OSTI]

    Rambaut, Andrew

    independent Academy of Medical Sciences promotes advances in medical science and campaigns to ensure from medical advances: `Exceptional Returns' 26 3.6 Discussion and conclusions 27 4 Bringing togetherMay 2006 Medical research: assessing the benefits to society A report by the UK Evaluation Forum

  19. Biomass cogeneration. A business assessment

    SciTech Connect (OSTI)

    Skelton, J.C.

    1981-11-01T23:59:59.000Z

    This guide serves as an overview of the biomass cogeneration area and provides direction for more detailed analysis. The business assessment is based in part on discussions with key officials from firms that have adopted biomass cogeneration systems and from organizations such as utilities, state and federal agencies, and banks that would be directly involved in a biomass cogeneration project. The guide is organized into five chapters: biomass cogeneration systems, biomass cogeneration business considerations, biomass cogeneration economics, biomass cogeneration project planning, and case studies.

  20. Assessment of government tribology programs

    SciTech Connect (OSTI)

    Peterson, M.B.; Levinson, T.M.

    1985-09-01T23:59:59.000Z

    An assessment has been made to determine current tribology research and development work sponsored or conducted by the government. Data base surveys and discussions were conducted to isolate current projects sponsored primarily by 21 different government organizations. These projects were classified by subject, objective, energy relevance, type of research, phenomenon being investigated, variables being studied, type of motion, materials and application. An abstract of each project was prepared which included the classification, sponsor, performing organization and a project description. It was found that current work is primarily materials oriented to meet military requirements. Other than the high temperature programs very few of the tribology projects accomplish energy related objectives.

  1. Department of Energy Plutonium ES&H Vulnerability Assessment Savannah River Site interim compensatory measures

    SciTech Connect (OSTI)

    Bickford, W.E.

    1994-09-15T23:59:59.000Z

    The Savannah River Site (SRS) has recently completed a self-assessment of potential vulnerabilities associated with plutonium and other transuranic materials stored at the site. An independent Working Group Assessment Team (WGAT) appointed by DOE/ES&H also performed an independent assessment, and reviewed and validated the site self-assessment. The purpose of this report is to provide a status of interim compensatory measures at SRS to address hazards in advance of any corrective actions. ES&H has requested this status for all vulnerabilities ranked medium or higher with respect to potential consequences to workers, environment, and the public.

  2. 29 Discussion of the place names of north-west Greenland with Massanguaq Jensen

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 29 Length of track 36 minutes Title of track Discussion of the place names of north...

  3. NORA : no one revises alone : classroom web application facilitating peer feedback & discussion

    E-Print Network [OSTI]

    Sikka, Denzil

    2014-01-01T23:59:59.000Z

    Peer-to-peer interactions, either through discussion forums or the peer review process, provide students with essential articulation skills as they reflect and respond to the ideas of others. Unfortunately, many students ...

  4. Discussion Paper No. 2012-11 J. Arin, V. Feltkamp and

    E-Print Network [OSTI]

    Hopkins, Gail

    Discussion Paper No. 2012-11 J. Arin, V. Feltkamp and M. Montero July 2012 Coalitional Games, Not- tingham NG7 2RD, United Kingdom. Phone: +44 115 9515468. Fax: +44 115 9514159. Email: maria.montero

  5. Comparison And Discussion Of The 6 Km Temperature Maps Of The...

    Open Energy Info (EERE)

    Discussion Of The 6 Km Temperature Maps Of The Western Us Prepared By The Smu Geothermal Lab And The Usgs Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  6. Comment on 'Discussions on common errors in analyzing sea level accelerations, solar trends and global warming'

    E-Print Network [OSTI]

    Benestad, R E

    2013-01-01T23:59:59.000Z

    Comment on Scafetta, Nicola. 'Discussion on Common Errors in Analyzing Sea Level Accelerations, Solar Trends and Global Warming.' arXiv:1305.2812 (May 13, 2013a). doi:10.5194/prp-1-37-2013.

  7. Higgs boson and beyond: the quest for new laws of physics discussed...

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

    Frontiers in Science lectures Higgs boson and beyond: the quest for new laws of physics discussed at Frontiers in Science lectures The lecture series is intended to increase local...

  8. discusses the widespread use of load-following products in regions with

    E-Print Network [OSTI]

    Gross, George

    discusses the widespread use of load- following products in regions with retail competition the lucrative consulting practice to push the load- following product. We are confident that readers will see

  9. A light reception will follow the presentations and discussion. Indiana University Department of Comparative Literature

    E-Print Network [OSTI]

    Indiana University

    A light reception will follow the presentations and discussion. Indiana University Department's On the Heights of Despair (1992) and Tears and Saints (1996) with the University of Chicago Press. In light

  10. NASA Expert Discusses NextGen - the Next Generation Air Transportation...

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

    Expert Discusses NextGen - the Next Generation Air Transportation System on Nov. 18 NEWPORT NEWS, Va., Nov. 7, 2008 -- The U.S. Department of Energy's Jefferson Lab invites the...

  11. Girl Scouts USA CEO visits ORNL to discuss STEM programs | ornl...

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

    -4165 Girl Scouts USA CEO visits ORNL to discuss STEM programs Anna Maria Chavez, middle, CEO of the Girl Scouts USA, visits the Center for Computational Sciences Jan. 30 with two...

  12. Woody Biomass for Energy in Michigan TOPICS FOR DISCUSSION AND INQUIRY EXTENSION BULLETIN E-3094

    E-Print Network [OSTI]

    Woody Biomass for Energy in Michigan TOPICS FOR DISCUSSION AND INQUIRY EXTENSION BULLETIN E-3094 be more flexible about pellet quality. Most of the global pellet market exists in Europe, although demand

  13. Distributed road assessment system

    DOE Patents [OSTI]

    Beer, N. Reginald; Paglieroni, David W

    2014-03-25T23:59:59.000Z

    A system that detects damage on or below the surface of a paved structure or pavement is provided. A distributed road assessment system includes road assessment pods and a road assessment server. Each road assessment pod includes a ground-penetrating radar antenna array and a detection system that detects road damage from the return signals as the vehicle on which the pod is mounted travels down a road. Each road assessment pod transmits to the road assessment server occurrence information describing each occurrence of road damage that is newly detected on a current scan of a road. The road assessment server maintains a road damage database of occurrence information describing the previously detected occurrences of road damage. After the road assessment server receives occurrence information for newly detected occurrences of road damage for a portion of a road, the road assessment server determines which newly detected occurrences correspond to which previously detected occurrences of road damage.

  14. Sound-insulation layer modelling in car computational vibroacoustics in the medium-frequency range

    E-Print Network [OSTI]

    Boyer, Edmond

    Sound-insulation layer modelling in car computational vibroacoustics in the medium-frequency range In a previous article, a simplified low- and medium-frequency model for un- certain automotive sound-insulation. In this paper, the insulation simplified model is implemented in an in- dustrial stochastic vibroacoustic model

  15. A pulser for medium-frequency modulated direct-current reactive sputter deposition of insulators

    E-Print Network [OSTI]

    Cao, Hui

    for medium-frequency modulated direct-current dc reactive sputter deposition of electrical insulators at the target surface inherent to high- deposition-rate reactive sputtering of electrical insulators. TypicallyA pulser for medium-frequency modulated direct-current reactive sputter deposition of insulators G

  16. Thermal recovery from a fractured medium in local thermal non-equilibrium Rachel Geleta,b,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , Australia Abstract Thermal recovery from a hot dry rock reservoir viewed as a deformable fractured mediumThermal recovery from a fractured medium in local thermal non-equilibrium Rachel Geleta phase being made by impermeable solid blocks separated by saturated fractures. The finite element

  17. Range imaging: a new method for high-resolution topographic measurements in small-and medium-

    E-Print Network [OSTI]

    Kirchner, James W.

    Range imaging: a new method for high-resolution topographic measurements in small- and medium is a useful complement or alternative to existing methods for high-resolution measurements in small- to medium has led to a dramatic increase in terrain information and opened up new opportunities for hydro- logic

  18. RANDOM WALK IN RANDOM ENVIRONMENT IN A TWO-DIMENSIONAL STRATIFIED MEDIUM WITH ORIENTATIONS

    E-Print Network [OSTI]

    Pène, Françoise

    RANDOM WALK IN RANDOM ENVIRONMENT IN A TWO-DIMENSIONAL STRATIFIED MEDIUM WITH ORIENTATIONS ALEXIS walk in random environment, random walk in random scenery, functional limit theorem, transience. This research was supported by the french ANR project MEMEMO2. 1 #12;RWRE IN A STRATIFIED ORIENTED MEDIUM 2 Our

  19. RANDOM WALK IN RANDOM ENVIRONMENT IN A TWO-DIMENSIONAL STRATIFIED MEDIUM WITH ORIENTATIONS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    RANDOM WALK IN RANDOM ENVIRONMENT IN A TWO-DIMENSIONAL STRATIFIED MEDIUM WITH ORIENTATIONS ALEXIS oriented lattices, random walk in random environment, random walk in random scenery, functional limit-00634636,version2-24Nov2012 #12;RWRE IN A STRATIFIED ORIENTED MEDIUM 2 We denote by E and E

  20. Virtual Reality and Desktop as a Combined Interaction-Visualisation Medium for

    E-Print Network [OSTI]

    Zudilova-Seinstra, Elena

    these mediums within the same environment. 2. The Simulated Environment for Vascular Reconstruction 2Virtual Reality and Desktop as a Combined Interaction-Visualisation Medium for a Problem-Solving Environment E.V. Zudilova, P.M.A. Sloot Section Computational Science Faculty of Science, University

  1. Behaviour of oil ganglia displaced by a surfactant solution in a porous medium

    E-Print Network [OSTI]

    Boyer, Edmond

    L-97 Behaviour of oil ganglia displaced by a surfactant solution in a porous medium J. C. Moulu'importance relative des forces de viscosité et des forces capillaires. Abstract. 2014 The velocity of oil ganglia residual oil phase by water injection in a porous medium [1, 2]. These studies have demonstrated

  2. Ray Theory for a Locally Layered Random Medium K. S lna G. Papanicolaou y

    E-Print Network [OSTI]

    Papanicolaou, George C.

    variations in the medium parameters. The pulse is generated by a point source and the medium is modeled the source and the point of observation. The ray is determined by high frequency asymptotics (geometrical is motivated by wave propagation in sedimentary rock. Here the sedimentary cycles produce structures

  3. Patterned medium for heat assisted magnetic recording Krat endur1,a

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    medium are compared using finite element method solutions of Maxwell's and the heat transfer equations a magnetic recording medium based on the fundamental principles of optical energy transfer and heat transfer. In this study, the basic principles of Maxwell's and heat transfer equations are utilized to obtain a magnetic

  4. TIMESCALES ON WHICH STAR FORMATION AFFECTS THE NEUTRAL INTERSTELLAR MEDIUM

    SciTech Connect (OSTI)

    Stilp, Adrienne M.; Dalcanton, Julianne J.; Weisz, Daniel R.; Williams, Benjamin F. [Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195 (United States); Warren, Steven R. [Department of Astronomy, University of Maryland, CSS Building, Room 1024, Stadium Drive, College Park, MD 20742-2421 (United States); Skillman, Evan [Minnesota Institute for Astrophysics, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455 (United States); Ott, Juergen [National Radio Astronomy Observatory, P.O. Box O, 1003 Lopezville Road, Socorro, NM 87801 (United States); Dolphin, Andrew E. [Raytheon Company, 1151 East Hermans Road, Tucson, AZ 85756 (United States)

    2013-08-01T23:59:59.000Z

    Turbulent neutral hydrogen (H I) line widths are often thought to be driven primarily by star formation (SF), but the timescale for converting SF energy to H I kinetic energy is unclear. As a complication, studies on the connection between H I line widths and SF in external galaxies often use broadband tracers for the SF rate, which must implicitly assume that SF histories (SFHs) have been constant over the timescale of the tracer. In this paper, we compare measures of H I energy to time-resolved SFHs in a number of nearby dwarf galaxies. We find that H I energy surface density is strongly correlated only with SF that occurred 30-40 Myr ago. This timescale corresponds to the approximate lifetime of the lowest mass supernova progenitors ({approx}8 M{sub Sun }). This analysis suggests that the coupling between SF and the neutral interstellar medium is strongest on this timescale, due either to an intrinsic delay between the release of the peak energy from SF or to the coherent effects of many supernova explosions during this interval. At {Sigma}{sub SFR} > 10{sup -3} M{sub Sun} yr{sup -1} kpc{sup -2}, we find a mean coupling efficiency between SF energy and H I energy of {epsilon} = 0.11 {+-} 0.04 using the 30-40 Myr timescale. However, unphysical efficiencies are required in lower {Sigma}{sub SFR} systems, implying that SF is not the primary driver of H I kinematics at {Sigma}{sub SFR} < 10{sup -3} M{sub Sun} yr{sup -1} kpc{sup -2}.

  5. Metal Enrichment of the Intergalactic Medium in Cosmological Simulations

    E-Print Network [OSTI]

    Anthony Aguirre; Lars Hernquist; Joop Schaye; Neal Katz; David H. Weinberg; Jeffrey Gardner

    2001-07-17T23:59:59.000Z

    Observations have established that the diffuse intergalactic medium (IGM) at z ~ 3 is enriched to ~0.1-1% solar metallicity and that the hot gas in large clusters of galaxies (ICM) is enriched to 1/3-1/2 solar metallicity at z=0. Metals in the IGM may have been removed from galaxies (in which they presumably form) during dynamical encounters between galaxies, by ram-pressure stripping, by supernova-driven winds, or as radiation-pressure driven dust efflux. This study develops a method of investigating the chemical enrichment of the IGM and of galaxies, using already completed cosmological simulations. To these simulations, we add dust and (gaseous) metals, distributing the dust and metals in the gas according to three simple parameterized prescriptions, one for each enrichment mechanism. These prescriptions are formulated to capture the basic ejection physics, and calibrated when possible with empirical data. Our results indicate that dynamical removal of metals from >~ 3*10^8 solar mass galaxies cannot account for the observed metallicity of low-column density Ly-alpha absorbers, and that dynamical removal from >~ 3*10^10 solar mass galaxies cannot account for the ICM metallicities. Dynamical removal also fails to produce a strong enough mass-metallicity relation in galaxies. In contrast, either wind or radiation-pressure ejection of metals from relatively large galaxies can plausibly account for all three sets of observations (though it is unclear whether metals can be distributed uniformly enough in the low-density regions without overly disturbing the IGM, and whether clusters can be enriched quite as much as observed). We investigate in detail how our results change with variations in our assumed parameters, and how results for the different ejection processes compare. (Abridged)

  6. Wind resource assessment with a mesoscale non-hydrostatic model

    E-Print Network [OSTI]

    Boyer, Edmond

    Wind resource assessment with a mesoscale non- hydrostatic model Vincent Guénard, Center for Energy is developed for assessing the wind resource and its uncertainty. The work focuses on an existing wind farm mast measurements. The wind speed and turbulence fields are discussed. It is shown that the k

  7. Effects of plasma particle trapping on dust-acoustic solitary waves in an opposite polarity dust-plasma medium

    SciTech Connect (OSTI)

    Ahmad, Zulfiqar [Institute of Physics and Electronics, University of Peshawar, 25000 Peshawar (Pakistan); Mushtaq, A. [Department of Physics, Abdul Wali Khan University, Mardan 23200 (Pakistan); National Center for Physics, Shahdrah Valley Road, Islamabad 44000 (Pakistan); Mamun, A. A. [Department of Physics, Jahangirnagar University Savar, Dhaka 1342 (Bangladesh)

    2013-03-15T23:59:59.000Z

    Dust acoustic solitary waves in a dusty plasma containing dust of opposite polarity (adiabatic positive and negative dust), non-isothermal electrons and ions (following vortex like distribution) are theoretically investigated by employing pseudo-potential approach, which is valid for arbitrary amplitude structures. The propagation of small but finite amplitude solitary structures is also examined by using the reductive perturbation method. The basic properties of large (small) amplitude solitary structures are investigated by analyzing the energy integral (modified Korteweg-de Vries equation). It is shown that the effects of dust polarity, trapping of plasma particles (electrons and ions), and temperatures of dust fluids significantly modify the basic features of the dust-acoustic solitary structures that are found to exist in such an opposite polarity dust-plasma medium. The relevance of the work in opposite polarity dust-plasma, which may occur in cometary tails, upper mesosphere, Jupiter's magnetosphere, is briefly discussed.

  8. Ab Initio Multi-Reference In-Medium Similarity Renormalization Group Calculations of Even Calcium and Nickel Isotopes

    E-Print Network [OSTI]

    H. Hergert; S. K. Bogner; T. D. Morris; S. Binder; A. Calci; J. Langhammer; R. Roth

    2014-10-28T23:59:59.000Z

    We use the newly developed Multi-Reference In-Medium Similarity Renormalization Group to study all even isotopes of the calcium and nickel isotopic chains, based on two- plus three-nucleon interactions derived from chiral effective field theory. We present results for ground-state and two-neutron separation energies and quantify their theoretical uncertainties. At shell closures, we find excellent agreement with Coupled Cluster results obtained with the same Hamiltonians. Our results highlight the importance of the chiral 3N interaction to obtain a correct reproduction of experimental energy trends, and their subtle impact on the location of the neutron drip lines in the Ca and Ni chains. At the same time, we uncover and discuss deficiencies of the input Hamiltonians which need to be addressed by the next generation of chiral interactions.

  9. Cooling rate and size effects on the medium-range structure of multicomponent oxide glasses simulated by molecular dynamics

    SciTech Connect (OSTI)

    Tilocca, Antonio [Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom)] [Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom)

    2013-09-21T23:59:59.000Z

    A set of molecular dynamics simulations were performed to investigate the effect of cooling rate and system size on the medium-range structure of melt-derived multicomponent silicate glasses, represented by the quaternary 45S5 Bioglass composition. Given the significant impact of the glass degradation on applications of these materials in biomedicine and nuclear waste disposal, bulk structural features which directly affect the glass dissolution process are of particular interest. Connectivity of the silicate matrix, ion clustering and nanosegregation, distribution of ring and chain structural patterns represent critical features in this context, which can be directly extracted from the models. A key issue is represented by the effect of the computational approach on the corresponding glass models, especially in light of recent indications questioning the suitability of conventional MD approaches (that is, involving melt-and-quench of systems containing ?10{sup 3} atoms at cooling rates of 5-10 K/ps) when applied to model these glasses. The analysis presented here compares MD models obtained with conventional and nonconventional cooling rates and system sizes, highlighting the trend and range of convergence of specific structural features in the medium range. The present results show that time-consuming computational approaches involving much lower cooling rates and/or significantly larger system sizes are in most cases not necessary in order to obtain a reliable description of the medium-range structure of multicomponent glasses. We identify the convergence range for specific properties and use them to discuss models of several glass compositions for which a possible influence of cooling-rate or size effects had been previously hypothesized. The trends highlighted here represent an important reference to obtain reliable models of multicomponent glasses and extract converged medium-range structural features which affect the glass degradation and thus their application in different fields. In addition, as a first application of the present findings, the fully converged structure of the 45S5 glass was further analyzed to shed new light on several dissolution-related features whose interpretation has been rather controversial in the past.

  10. Assessing human health risk in the USDA forest service

    SciTech Connect (OSTI)

    Hamel, D.R. [Department of Agriculture-Forest Service, Washington, DC (United States)

    1990-12-31T23:59:59.000Z

    This paper identifies the kinds of risk assessments being done by or for the US Department of Agriculture (USDA) Forest Service. Summaries of data sources currently in use and the pesticide risk assessments completed by the agency or its contractors are discussed. An overview is provided of the agency`s standard operating procedures for the conduct of toxicological, ecological, environmental fate, and human health risk assessments.

  11. Forces, moment and wave pattern for surface combatant in regular Part II. Measurement results and discussions

    E-Print Network [OSTI]

    Gui, Lichuan

    /CFD and uncertainty assessment for DTMB model 5415 (Stern et al. 2000). The DTMB 5512 is a 3.048-m geosym of the 5, heave force, pitch moment and free-surface elevations for DTMB 5512 at steady for- ward speed), Insituto Nazinale per Studi ed Esperienze di Architettura Navale (INSEAN) and DTMB on EFD

  12. INL Director Discusses the Future for Nuclear Energy in the United States

    ScienceCinema (OSTI)

    Grossenbacher, John

    2013-05-28T23:59:59.000Z

    Idaho National Laboratory's Director John Grossenbacher explains that the United States should develop its energy policies based on an assessment of the current events at Japan's Fukushima nuclear reactors and the costs and benefits of providing electricity through various energy sources. For more information about INL's nuclear energy research, visit http://www.facebook.com/idahonationallaboratory.

  13. INL Director Discusses the Future for Nuclear Energy in the United States

    SciTech Connect (OSTI)

    Grossenbacher, John

    2011-01-01T23:59:59.000Z

    Idaho National Laboratory's Director John Grossenbacher explains that the United States should develop its energy policies based on an assessment of the current events at Japan's Fukushima nuclear reactors and the costs and benefits of providing electricity through various energy sources. For more information about INL's nuclear energy research, visit http://www.facebook.com/idahonationallaboratory.

  14. A Comparison of Demand Side Management Data Assessment Procedures for Small and Medium-Sized Manufacturing Plants

    E-Print Network [OSTI]

    Matheidas, M. T.; Heffington, W. M.

    ). Systematic errors are introduced when the operating time length consistently is greater or less than that of the plant....

  15. Impact Assessment of Simulated Doppler Wind Lidars with a Multivariate Variational Assimilation in the Tropics

    E-Print Network [OSTI]

    Stoffelen, Ad

    forecast errors of the European Centre for Medium-Range Weather Forecasts (ECMWF) model. Tropical mass­windImpact Assessment of Simulated Doppler Wind Lidars with a Multivariate Variational Assimilation, De Bilt, Netherlands CHRISTOPHE ACCADIA AND PETER SCHL�SSEL European Organisation

  16. Solar Resource Assessment

    SciTech Connect (OSTI)

    Renne, D.; George, R.; Wilcox, S.; Stoffel, T.; Myers, D.; Heimiller, D.

    2008-02-01T23:59:59.000Z

    This report covers the solar resource assessment aspects of the Renewable Systems Interconnection study. The status of solar resource assessment in the United States is described, and summaries of the availability of modeled data sets are provided.

  17. Edinburgh Motor Assessment (EMAS) 

    E-Print Network [OSTI]

    Bak, Thomas

    2013-12-01T23:59:59.000Z

    Edinburgh Motor Assessment (EMAS) is a brief motor screening test, specifically designed for assessment of patients with dementia, aphasia and other cognitive disorders. It focuses, therefore, on those motor symptoms, ...

  18. Survey of Biomass Resource Assessments and Assessment Capabilities...

    Open Energy Info (EERE)

    Assessment Capabilities in APEC Economies Jump to: navigation, search Logo: Survey of Biomass Resource Assessments and Assessment Capabilities in APEC Economies Name Survey of...

  19. TYPE Ia SUPERNOVAE STRONGLY INTERACTING WITH THEIR CIRCUMSTELLAR MEDIUM

    SciTech Connect (OSTI)

    Silverman, Jeffrey M. [Department of Astronomy, University of Texas, Austin, TX 78712-0259 (United States); Nugent, Peter E. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Gal-Yam, Avishay; Arcavi, Iair; Ben-Ami, Sagi [Benoziyo Center for Astrophysics, Weizmann Institute of Science, Rehovot 76100 (Israel); Sullivan, Mark [School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom); Howell, D. Andrew; Graham, Melissa L. [Las Cumbres Observatory Global Telescope Network, Goleta, CA 93117 (United States); Filippenko, Alexei V.; Bloom, Joshua S.; Cenko, S. Bradley; Clubb, Kelsey I. [Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States); Cao, Yi; Horesh, Assaf; Kulkarni, Shrinivas R. [Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125 (United States); Chornock, Ryan; Foley, Ryan J. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Coil, Alison L. [Department of Physics, University of California, San Diego, La Jolla, CA 92093 (United States); Griffith, Christopher V. [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States); Kasliwal, Mansi M., E-mail: jsilverman@astro.as.utexas.edu [Observatories of the Carnegie Institution of Science, Pasadena, CA 91101 (United States); and others

    2013-07-01T23:59:59.000Z

    Owing to their utility for measurements of cosmic acceleration, Type Ia supernovae (SNe Ia) are perhaps the best-studied class of SNe, yet the progenitor systems of these explosions largely remain a mystery. A rare subclass of SNe Ia shows evidence of strong interaction with their circumstellar medium (CSM), and in particular, a hydrogen-rich CSM; we refer to them as SNe Ia-CSM. In the first systematic search for such systems, we have identified 16 SNe Ia-CSM, and here we present new spectra of 13 of them. Six SNe Ia-CSM have been well studied previously, three were previously known but are analyzed in depth for the first time here, and seven are new discoveries from the Palomar Transient Factory. The spectra of all SNe Ia-CSM are dominated by H{alpha} emission (with widths of {approx}2000 km s{sup -1}) and exhibit large H{alpha}/H{beta} intensity ratios (perhaps due to collisional excitation of hydrogen via the SN ejecta overtaking slower-moving CSM shells); moreover, they have an almost complete lack of He I emission. They also show possible evidence of dust formation through a decrease in the red wing of H{alpha} 75-100 days past maximum brightness, and nearly all SNe Ia-CSM exhibit strong Na I D absorption from the host galaxy. The absolute magnitudes (uncorrected for host-galaxy extinction) of SNe Ia-CSM are found to be -21.3 mag {<=} M{sub R} {<=} -19 mag, and they also seem to show ultraviolet emission at early times and strong infrared emission at late times (but no detected radio or X-ray emission). Finally, the host galaxies of SNe Ia-CSM are all late-type spirals similar to the Milky Way, or dwarf irregulars like the Large Magellanic Cloud, which implies that these objects come from a relatively young stellar population. This work represents the most detailed analysis of the SN Ia-CSM class to date.

  20. Writing Assessment: Additional Resources

    E-Print Network [OSTI]

    Schweik, Charles M.

    29 Appendix A Writing Assessment: Additional Resources #12;30 Where can I find out more into the assessment process. On-campus resources give you with a "real person" to contact should you have questions Resources for Higher Education Outcomes Assessment http://www2.acs.ncsu.edu/UPA/survey/resource.htm Ohio

  1. Assistant Secretary Hoffman Discusses Grid Modernization with the New York Times and E&E TV

    Broader source: Energy.gov [DOE]

    During a New York Times conference on “Energy for Tomorrow: Building Sustainable Cities,” Assistant Secretary Hoffman joined ConEd CEO Kevin Burke, and Euroheat and Power CEO Sabine Froning for a discussion on “Think National but Power Local.” During an interview with E&E TV’s Monica Trauzzi, she discussed how Recovery Act funding is helping utilities achieve important results such as reducing peak load, deferring building of additional generation, improving operations and monitoring the health of the grid more effectively.

  2. Motivation, Design, and Ubiquity: A Discussion of Research Ethics and Computer Science

    E-Print Network [OSTI]

    David R. Wright

    2007-06-04T23:59:59.000Z

    Modern society is permeated with computers, and the software that controls them can have latent, long-term, and immediate effects that reach far beyond the actual users of these systems. This places researchers in Computer Science and Software Engineering in a critical position of influence and responsibility, more than any other field because computer systems are vital research tools for other disciplines. This essay presents several key ethical concerns and responsibilities relating to research in computing. The goal is to promote awareness and discussion of ethical issues among computer science researchers. A hypothetical case study is provided, along with questions for reflection and discussion.

  3. Management Assessment and Independent Assessment Guide

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2001-05-31T23:59:59.000Z

    The revision to this Guide reflects current assessment practices, international standards, and changes in the Department of Energy expectations. Cancels DOE G 414.1-1. Canceled by DOE G 414.1-1B.

  4. Nonlinear instability of an Oldroyd elastico–viscous magnetic nanofluid saturated in a porous medium

    SciTech Connect (OSTI)

    Moatimid, Galal M., E-mail: gal-moa@hotmail.com [Department of Mathematics, Faculty of Education, Ain Shams University, Roxy (Egypt); Alali, Elham M. M., E-mail: dr-elham-alali@hotmail.com; Ali, Hoda S. M., E-mail: hoda-ali-1@hotmail.com [Department of Mathematics, Faculty of Science (Girls Branch), University of Tabuk, Tabuk, P.O. Box 741 (Saudi Arabia)

    2014-09-15T23:59:59.000Z

    Through viscoelastic potential theory, a Kelvin-Helmholtz instability of two semi-infinite fluid layers, of Oldroydian viscoelastic magnetic nanofluids (MNF), is investigated. The system is saturated by porous medium through two semi-infinite fluid layers. The Oldroyd B model is utilized to describe the rheological behavior of viscoelastic MNF. The system is influenced by uniform oblique magnetic field that acts at the surface of separation. The model is used for the MNF incorporated the effects of uniform basic streaming and viscoelasticity. Therefore, a mathematical simplification must be considered. A linear stability analysis, based upon the normal modes analysis, is utilized to find out the solutions of the equations of motion. The onset criterion of stability is derived; analytically and graphs have been plotted by giving numerical values to the various parameters. These graphs depict the stability characteristics. Regions of stability and instability are identified and discussed in some depth. Some previous studies are recovered upon appropriate data choices. The stability criterion in case of ignoring the relaxation stress times is also derived. To relax the mathematical manipulation of the nonlinear approach, the linearity of the equations of motion is taken into account in correspondence with the nonlinear boundary conditions. Taylor's theory is adopted to expand the governing nonlinear characteristic equation according to of the multiple time scales technique. This analysis leads to the well-known Ginzburg–Landau equation, which governs the stability criteria. The stability criteria are achieved theoretically. To simplify the mathematical manipulation, a special case is considered to achieve the numerical estimations. The influence of orientation of the magnetic fields on the stability configuration, in linear as well as nonlinear approaches, makes a dual role for the magnetic field strength in the stability graphs. Stability diagram is plotted for different sets of physical parameters. A new stability as well as instability region, in the parameter space, appears due to the nonlinear effects.

  5. Jet-mass Dependence of the in-Medium Shower Modification

    E-Print Network [OSTI]

    Thorsten Renk

    2012-10-16T23:59:59.000Z

    While the modification of jets by a medium as created in ultrarelativistic heavy-ion collisions is often thought of as a phenomenon affecting a hard near on-shell parton and hence treated as partonic energy loss, a more realistic view is to think of the medium effect as a relatively small correction to the Quantum Chromodynamics (QCD) vacuum radiation pattern which reduces the initial high virtuality of hard partons and leads to the development of a shower. The uncertainty relation can be used to argue that a significant part of this shower is developed even before a medium can be formed. The initial virtuality of a shower-initiating parton is reflected in the final state in the measured invariant mass of a jet - high mass jets are characterized by more branchings, higher multiplicity and a wider angular structure. Since most of this structure is determined before the medium affects the jet, selecting a particular jet mass range strongly biases the partonic configuration that enters the medium, and thus the medium is expected to modify high mass jets more strongly than low mass jets. In this work, this scenario is explored using the in-medium shower evolution code YaJEM and a possible strategy for a measurement is suggested.

  6. Portugal, Canada Discuss Marine Fisheries Results of the first full year of joint

    E-Print Network [OSTI]

    Portugal, Canada Discuss Marine Fisheries Results of the first full year of joint research may be used to obtain deferment of taxes on certain income derived from commercial fishing operations in the Federal Register the week of 22 Sep- tember 1975. Di rector Named for NOAA oes Environment Program Rudolf

  7. QUALITATIVE UPDATED DISCUSSION OF ATLANTIC BASIN SEASONAL HURRICANE ACTIVITY FOR 2012

    E-Print Network [OSTI]

    Gray, William

    QUALITATIVE UPDATED DISCUSSION OF ATLANTIC BASIN SEASONAL HURRICANE ACTIVITY FOR 2012 We anticipate that the 2012 Atlantic basin hurricane season will have reduced activity compared with the 1981 hurricane season. Our first quantitative forecast for 2012 will be issued on Wednesday, April 4. (as of 21

  8. Robot Glossary This appendix section briefly describes each of the robot projects discussed in this thesis.

    E-Print Network [OSTI]

    discussed in this thesis. The glossary is organized in alphabetical order by the robot's name. Baygon Palmer and is pictured on page 80. Blind The second robot of the David Hogg/Katie Lilienkamp team, Blind. Blind exploited the fact that the initial position of the puck was a known distance from the initial

  9. SURVEY OF THE ROBUST CONTROL In this survey, we discuss current approaches to the robug con-

    E-Print Network [OSTI]

    system depite uncertn knowledge of the robot's parmetr Altho ot as to linear control echniquesSURVEY OF THE ROBUST CONTROL OF ROBOTS ABSTRACr In this survey, we discuss current approaches to the robug con- trol of the motion of robots and smmarize the available liteatre on the subj The three major

  10. MAE 124/ESYS 103 Discussion: Week 9 Buildings, Building Codes, Land Use

    E-Print Network [OSTI]

    Gille, Sarah T.

    MAE 124/ESYS 103 Discussion: Week 9 Buildings, Building Codes, Land Use 0. Let's consider apartment complex under construction August 1, 2003 "If you build it we will burn it. The E.L.F.s are mad of life and the planet." Is ELF pursuing a sustainable "smart growth" strategy? 2. Is open space near

  11. A Discussion on Pricing Relational Data Magdalena Balazinska, Bill Howe, Paraschos Koutris,

    E-Print Network [OSTI]

    Anderson, Richard

    of the costs of producing and maintaining the data by charging these pharmaceutical companies a price pricing mechanisms to fail: they have a high and irrecoverable fixed cost (producing the data is expensiveA Discussion on Pricing Relational Data Magdalena Balazinska, Bill Howe, Paraschos Koutris, Dan

  12. Smart Grids: Fact or Fiction? A Discussion of Smart Grids in New Zealand

    E-Print Network [OSTI]

    Hickman, Mark

    May 2013 1 Smart Grids: Fact or Fiction? A Discussion of Smart Grids in New Zealand Dr Allan Miller. Introduction The term `smart grid' is used extensively today, even though there are diverse opinions on what to some extent, and the key questions should not be about what constitutes a `smart grid', but what

  13. GEOSYNTHETICS INTERNATIONAL 2002, VOL. 9, NO. 4 387 Discussion and Response

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    and were prepared by dry tamping. Figure 3 in the paper shows the increase in peak friction angle of the peak strength. However, I am puzzled by the friction angles used. In my discussion, I used 35° and 37 friction angles? Response by J.G. Zornberg Many thanks again to J.P. for his input. The reason

  14. ATOC 3500 Tuesday, March 15, 2011 Discussion of projects (be ready to present ~ 1 page of

    E-Print Network [OSTI]

    Toohey, Darin W.

    by the disaster (earthquake and tsunami) in Japan and the situation with the nuclear reactors. Discussion in a cm3 air" Note ­ on the bottom of page 129 the book mentions a specific surface area of 3 x 10-3 cm2

  15. ENVIR 202: EARTH, AIR, WATER 22 Jan 2003 BACKGROUND DISCUSSION FOR THE SCIENCE CORE: ENERGY

    E-Print Network [OSTI]

    and convection (thermal energy flow in solids and fluids) E7 A Solar Pond (energy conversion and storage, solar to thermal): E8 Your Next Car? The hydrogen fuel cell (energy conversion, chemical to electrical and reverse1 ENVIR 202: EARTH, AIR, WATER 22 Jan 2003 BACKGROUND DISCUSSION FOR THE SCIENCE CORE: ENERGY P

  16. Monthly Theme Hazardous Waste Disposal July 2009 Monthly Theme for discussion at Department Meetings -July 2009

    E-Print Network [OSTI]

    Calgary, University of

    Monthly Theme ­ Hazardous Waste Disposal ­ July 2009 Monthly Theme for discussion at Department Meetings - July 2009 Hazardous Waste Disposal Often a waste pick-up is initiated but the waste isn't picked that it would be beneficial to have a stand and deliver course on Hazardous Waste Disposal offered

  17. Nuclear talks in Austria International representatives will meet in Vienna on Saturday to discuss a

    E-Print Network [OSTI]

    Nuclear talks in Austria International representatives will meet in Vienna on Saturday to discuss a controversial nuclear fusion plan. The technical meeting of experts is intended to pave the way of nuclear fusion say it provides an attractive long-term energy option, because the basic materials needed

  18. DRAFT For Discussion Purposes Only The University of Texas at Austin

    E-Print Network [OSTI]

    Berger, Emery

    ("System"), an agency of the State of Texas, whose address is 201 West 7th Street, Austin, Texas 78701DRAFT ­ For Discussion Purposes Only The University of Texas at Austin Licensee: UTA No.: Page 1 The University of Texas at Austin ("Licensor"), a component institution of The University of Texas System

  19. Discussion Papers No. 386, August 2004 Statistics Norway, Social and Demographic Research

    E-Print Network [OSTI]

    Løw, Erik

    Discussion Papers No. 386, August 2004 Statistics Norway, Social and Demographic Research Nico Commission. Address: Nico Keilman, Statistics Norway, Social and Demographic Research. E-mail: Nico.Keilman@ssb.no Dinh Quang Pham, Statistics Norway, Statistical Methods and Standards. E-mail: dinh.quang.pham @ssb

  20. Introduction to Artificial Intelligence Discuss what is meant by Artificial Intelligence (AI)

    E-Print Network [OSTI]

    Qu, Rong

    - Explicit Induced - Deduced Introduction to Artificial Intelligence AI Techniques Top Down - Expert Systems1 Introduction to Artificial Intelligence Objectives · Discuss what is meant by Artificial intelligence · Introduce the terms to be used through the rest of the course Introduction to Artificial

  1. Total football in innovation policy Discussion paper on the evaluation of innovation policy

    E-Print Network [OSTI]

    innovation policy can be derived. Effective innovation policy addresses the issues within the technology1 Total football in innovation policy Discussion paper on the evaluation of innovation policy Koen Schoots, Bert Daniëls, Rodrigo Rivera ECN Policy Studies The innovation climate in the Netherlands

  2. The Faculty of Business, Economics and Information Systems Discussion on Drobetz, Puhan, and

    E-Print Network [OSTI]

    Schubart, Christoph

    /11 Practical Relevance The study claims high practical relevance. Indexes can be replicated with ETFs in a cost Conference January 13, 2010 Global Value-Momentum Index Portfolio #12;The Faculty of Business, Economics Sebastian Lobe Discussion CfF 2010 4/11 Outline 1 Practical Relevance 2 Portfolio Construction 3 Empirics

  3. 1 Introduction The artificial neural network discussed in this paper is unlike most other neural network

    E-Print Network [OSTI]

    Delaware, University of

    1 1 Introduction The artificial neural network discussed in this paper is unlike most other neural practically all types of artificial neural network architectures were modeled, with varying levels of Connection Patterns for a Dynamic Artificial Neural Network Proceedings of the Combinations of Genetic

  4. Session 4: Creating a Successful and Productive Lab Environment DISCUSSION OUTLINE: SESSION 4

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Session 4: Creating a Successful and Productive Lab Environment DISCUSSION OUTLINE: SESSION 4 Topics: Themes at the core of creating a successful lab environment Groups ­ needs and development Teams and Productive Lab Environment ­ FACILITATOR GUIDELINES Timeline ­ 1.5 Hours Total 10 minutes Themes at the core

  5. BAYESIAN METHODS IN THE ANALYSIS OF CLINICAL TRIALS: A DISCUSSION Dalene K. Stangl, Duke University

    E-Print Network [OSTI]

    West, Mike

    ; Gelfand, design of clinical trials for multiple outcomes; and Spiegelhalter, metaBAYESIAN METHODS IN THE ANALYSIS OF CLINICAL TRIALS: A DISCUSSION Dalene K. Stangl, Duke University , and Spiegelhalter 3 in this section, Bayesian Methods in Clinical Trials, my comments apply more generally

  6. EVALUATING FENESTRATION PRODUCTS FOR ZERO-ENERGY BUILDINGS: ISSUES FOR DISCUSSION

    E-Print Network [OSTI]

    LBNL-61249 EVALUATING FENESTRATION PRODUCTS FOR ZERO-ENERGY BUILDINGS: ISSUES FOR DISCUSSION to compare and distinguish between windows suitable for Zero Energy Buildings and conventional window of accuracy enough to distinguish between products designed for Zero Energy Buildings? Is the current input

  7. Faraday Discuss., 1997, 108, 115130 Excited state dynamics in clusters of oxygen

    E-Print Network [OSTI]

    Continetti, Robert E.

    Faraday Discuss., 1997, 108, 115È130 Excited state dynamics in clusters of oxygen Runjun Li, Karl A clusters of oxygen. Oxygen clusters and liquid oxygen have a com- plicated chemistry due to numerous low) dynamics of small anionic clusters of oxygen. We Ðnd that the dynamics of the neutral DPD pathway

  8. Fresnel Fringes & Penumbra [Raymond Dusser provided a major contribution to the following discussion.

    E-Print Network [OSTI]

    Richmond, Michael W.

    #$ Fresnel Fringes & Penumbra [Raymond Dusser provided a major contribution to the following discussion.] Fresnel diffraction is the diffraction of light at the edge of an obstruction object. Fresnel outline of Fresnel diffraction The mathematics of Fresnel Diffraction The following is the mathematics

  9. TA Orientation 2004 Activity 5 (2 points). Teaching Discussion Sessions at UMn

    E-Print Network [OSTI]

    Minnesota, University of

    questions and comments (2) The Mentor TA will lead a class discussion about your questions. Write important & Useful Information (one per person) OR of useful information to put on board Photocopies of Answer Sheet) passing out Problem & Useful Information and Answer Sheet. · Students sitting and listening · Students

  10. Discussion on Article1: A Mori Perspective on Bicultural Software Development

    E-Print Network [OSTI]

    Keegan, Te Taka

    's about treating people with respect, of raising their importance and needs above yours, of looking after their health and well being often to the detriment of your own needs. I believe it goes further than the treasure of discussion and the dissemination of knowledge is given its due importance and protection

  11. Discussion of "Analysis of a Large Database of GCL Internal Shear

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    .edu The authors have presented an extensive and valuable study on the internal shear strength of geosynthetic clay liners GCLs . The discusser has also performed extensive tests of these materials and can comment for quality geosynthetic shear testing. Some of the test data in the authors' database are also found

  12. Home Energy Assessments

    ScienceCinema (OSTI)

    Dispenza, Jason

    2013-05-29T23:59:59.000Z

    A home energy assessment, also known as a home energy audit, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy efficient. An assessment will show you problems that may, when corrected, save you significant amounts of money over time. This video shows some of the ways that a contractor may test your home during an assessment, and helps you understand how an assessment can help you move toward energy savings. Find out more at: http://www.energysavers.gov/your_home/energy_audits/index.cfm/mytopic=11160

  13. Effect of high frequency modes of medium on an open quantum system

    E-Print Network [OSTI]

    Nirupam Dutta; A. K. Chaudhuri; P. K. Panigrahi

    2014-09-09T23:59:59.000Z

    We present a method to calculate the real time effective propagator of a generic open quantum system, immersed in a medium using a wave function based framework. The medium is characterised by a set of harmonic oscillators having a continuous span of frequencies. This technique has been applied to the Caldeira-Leggett model showing that high frequency modes of the medium do not contribute towards decay of the population of states of the open system. In fact, they cause a Rabi type oscillation. Moreover, our wave function based approach provides an excellent alternative to conventional formalisms involving the density matrix.

  14. FATIMA; A data acquisition system for medium scale experiments

    SciTech Connect (OSTI)

    Watzlawik, K.H.; Nellen, R.; Noll, T.; Karnadi, M.; Machner, H. (Inst. fuer Kernphysik, Forschungszentrum Juelich, Juelich (DE))

    1992-04-01T23:59:59.000Z

    This paper discusses the data acquisition system FATIMA (Fera Amplitude and Time Multiparameter Analyzer) utilizing CAMAC, FERA and a VAX-Station, designed and built for nuclear physics experiments like subthreshold {pi}{sup 0}-production in Heavy Ion Collisions. The major features of the system are fast data readout of up to 352 ADCs and/or TDCs in conjunction with data reduction, event buffering, high speed data transfer and simple interfacing to any workstation. For on-line acquisition, recording and analysis of data as well as experiment control a modular program system was developed on VAX/VMS. Data analysis comprises on-line sort of real and pseudo channels and graphical representation of sorted data.

  15. Evolution of deformations in medium-mass nuclei

    E-Print Network [OSTI]

    H. Sagawa; X. R. Zhou; X. Z. Zhang

    2005-10-28T23:59:59.000Z

    Evolution of quadrupole deformations in $sd$ and $pf$ shell nuclei with mass A= 18$\\sim$56 is studied by using deformed Skyrme Hartree-Fock (HF) model with pairing correlations. We point out that the quadrupole deformations of the nuclei with the isospin T=0 and T=1 show strong mass number dependence as a clear manifestation of dynamical evolution of deformation in nuclear many-body systems. The competition between the deformation driving particle-vibration coupling and the closed shell structure is shown in a systematic study of the ratios between the proton and neutron deformations in nuclei with T=$|$T$_z|$=1. Calculated quadrupole and hexadecapole deformations are compared with shell model results and available experimental data. A relation between the skin thickness and the intrinsic Q$_2$ moments is also discussed.

  16. Survey of Biomass Resource Assessments and Assessment Capabilities

    E-Print Network [OSTI]

    Survey of Biomass Resource Assessments and Assessment Capabilities in APEC Economies Energy ...................................................................................................................................4 Biomass Resource Assessment Products and Assessment Methodologies, Department of Industry, Tourism and Resources, Australia Ms. Siti Hafsah, Office of the Minister of Energy

  17. Propagation of two short laser pulse trains in a $\\Lambda$-type three-level medium under conditions of electromagnetically induced transparency

    E-Print Network [OSTI]

    Buica, Gabriela

    2014-01-01T23:59:59.000Z

    We investigate the dynamics of a pair of short laser pulse trains propagating in a medium consisting of three-level $\\Lambda$-type atoms by numerically solving the Maxwell-Schr\\"odinger equations for atoms and fields. By performing propagation calculations with different parameters, under conditions of electromagnetically induced transparency, we compare the propagation dynamics by a single pair of probe and coupling laser pulses and by probe and coupling laser pulse trains. We discuss the influence of the coupling pulse area, number of pulses, and detunings on the probe laser propagation and realization of electromagnetically induced transparency conditions, as well on the formation of a dark state.

  18. Independent Assessment of Technology Characterizations to Support the Biomass Program Annual State-of-Technology Assessments

    SciTech Connect (OSTI)

    Yeh, B.

    2011-03-01T23:59:59.000Z

    This report discusses an investigation that addressed two thermochemical conversion pathways for the production of liquid fuels and addressed the steps to the process, the technology providers, a method for determining the state of technology and a tool to continuously assess the state of technology. This report summarizes the findings of the investigation as well as recommendations for improvements for future studies.

  19. Measurement of the Time-Resolved Reflection Matrix for Enhancing Light Energy Delivery into a Scattering Medium

    E-Print Network [OSTI]

    Choi, Youngwoon

    Multiple scatterings occurring in a turbid medium attenuate the intensity of propagating waves. Here, we propose a method to efficiently deliver light energy to the desired target depth in a scattering medium. We measure ...

  20. Assessment of Chemical and Radiological Vulnerabilities

    SciTech Connect (OSTI)

    SETH, S.S.

    2000-05-17T23:59:59.000Z

    Following the May 14, 1997 chemical explosion at Hanford's Plutonium Reclamation Facility, the Department of Energy Richland Operations Office and its prime contractor, Fluor Hanford, Inc., completed an extensive assessment to identify and address chemical and radiological safety vulnerabilities at all facilities under the Project Hanford Management Contract. This was a challenging undertaking because of the immense size of the problem, unique technical issues, and competing priorities. This paper focuses on the assessment process, including the criteria and methodology for data collection, evaluation, and risk-based scoring. It does not provide details on the facility-specific results and corrective actions, but discusses the approach taken to address the identified vulnerabilities.

  1. The Results (Lessons Learned) of More than 110 Energy Audits for Manufacturers by the Louisiana Industrial Assessment Center

    E-Print Network [OSTI]

    Kozman, T.; Davies, T.; Reynolds, C.; O'Quin, R.; DaCosta, J.; Galti, T.; Pechon, C.; Stutes, K.

    2005-01-01T23:59:59.000Z

    This paper and discussion presents the summary and results of energy audits or assessments conducted by the University of Louisiana Lafayette Industrial Assessment Center, which is sponsored by the US Department of Energy, for the first four years...

  2. Discussion on Energy-Efficient Technology for the Reconstruction of Residential Buildings in Cold Areas

    E-Print Network [OSTI]

    Zhao, J.; Wang, S.; Chen, H.; Shi, Y.; Li, D.

    2006-01-01T23:59:59.000Z

    , and provides the technical and economic analysis, which may provide reference of the suitable plans for the energy efficient reconstruction of buildings in cold area. 2. ANALYSIS ON HEATING ENERGY CONSUMPTION 2.1 Building Situation Based... on the existing residential building in Beijing, the paper discusses the reconstruction plan of energy saving. The outside air temperature for heating in Beijing is -9 , and the outside mean temperature is -1.6 during the heating period of 125 days...

  3. A discussion on life-cycle costs of residential photovoltaic systems

    SciTech Connect (OSTI)

    THOMAS,MICHAEL G.; CAMERON,CHRISTOPHER P.

    2000-04-11T23:59:59.000Z

    This paper discusses the characteristics and needed improvements/enhancements required for the expansion of the grid-tied residential power systems market. The purpose of the paper is to help establish a common understanding, between the technical community and the customers of the technology, of value and costs and what is required in the longer term for reaching the full potential of this application.

  4. Information Technology Project Execution Model Guide for Small and Medium Projects

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2015-07-07T23:59:59.000Z

    The Guide was developed to provide project management principles and guidelines to small and medium projects that fall outside the scope of DOE O 415.1, Information Technology Project Management, dated 12-3-12.

  5. HIGH-RESOLUTION X-RAY SPECTROSCOPY OF THE MULTIPHASE INTERSTELLAR MEDIUM TOWARD Cyg X-2

    E-Print Network [OSTI]

    Schulz, Norbert S.

    High-resolution X-ray absorption spectroscopy is a powerful diagnostic tool for probing chemical and physical properties of the interstellar medium (ISM) at various phases. We present detections of K transition absorption ...

  6. The design of a compact integral medium size PWR : the CIRIS

    E-Print Network [OSTI]

    Shirvan, Koroush

    2010-01-01T23:59:59.000Z

    The International Reactor Innovative and Secure (IRIS) is an advanced medium size, modular integral light water reactor design, rated currently at 1000 MWt. IRIS design has been under development by over 20 organizations ...

  7. Analysis of asset health : an approach to monitoring and diagnostics for medium voltage circuit breakers

    E-Print Network [OSTI]

    Corona, Erick (Erick Gustavo)

    2013-01-01T23:59:59.000Z

    The Medium Voltage Electric Industry is a very conservative and risk adverse sector that has undergone very little change in the past 30 years when compared to other technologically dependent activities; this reality is ...

  8. "Shelter within my reach" : medium rise apartment housing for the middle income group in Karachi, Pakistan

    E-Print Network [OSTI]

    Mahmood, Saman, 1972-

    1999-01-01T23:59:59.000Z

    This thesis identifies the project development processes of medium rise (five storied or less) apartment housing built by the private formal sector, catering to the middle income groups in Karachi, Pakistan. Middle income ...

  9. Georgia Power- Small and Medium Scale Advanced Solar Initiative (GPASI) (Georgia)

    Broader source: Energy.gov [DOE]

    '''''Note: The application process for the small and medium scale solar programs began on March 1, 2013 and will continue through March 11, 2013. If completed applications exceed program capacity...

  10. The Application of Ultrasonic Energy into Liquid Mediums to Increase Effectiveness

    E-Print Network [OSTI]

    Goodman, M. A.

    1979-01-01T23:59:59.000Z

    The use of high frequency or ultrasonic vibrations transmitted into and through a suitable medium can increase solution effectiveness. This means that in a continuous cleaning process, ultrasonic activation of the cleaning solution can increase...

  11. Breathing dynamics of an asymmetric Gaussian beam propagating in a saturable absorbing medium

    SciTech Connect (OSTI)

    Ianetz, D.; Kaganovskii, Yu.; Rosenbluh, M. [Jack and Pearl Resnick Institute for Advanced Technology, Department of Physics, Bar-Ilan University, Ramat-Gan IL-52900 (Israel); Wilson-Gordon, A. D. [Department of Chemistry, Bar-Ilan University, Ramat Gan IL-52900 (Israel)

    2010-12-15T23:59:59.000Z

    Propagation of an asymmetric Gaussian beam in a medium with saturated nonlinear refractive index is analyzed using a 'collective variable approach' to solve the general nonlinear Schroedinger equation and compared with that of a symmetric beam in both lossless and lossy media. For a lossless medium, we construct a diagram which defines regions of oscillatory and diffractive propagation of an asymmetric beam and compare it with that of a symmetric beam. We detect breathing dynamics of the widths and amplitude of the asymmetric beam in the oscillatory regime of propagation and identify two different types of width and amplitude beating, Type 1 and 2, depending on the initial beam energy and saturation constant of the medium. This is in contrast to a cubic-quintic medium where only one type of beating is obtained.

  12. Development of a Chemically Defined Medium to Assay the Metabolism of Lactic Acid Bacteria

    E-Print Network [OSTI]

    Kim, Inhye

    2014-04-16T23:59:59.000Z

    twelve chemically-defined ingredients. In order to increase the bioavailability of hydrophobic chemical additives, such as the isoflavone genistein (4',5,7-trihydroxyisoflavone), tween 80 was incorporated into the final medium at high levels (10% v...

  13. Margins in high temperature leak-before-break assessments

    SciTech Connect (OSTI)

    Budden, P.J.; Hooton, D.G.

    1997-04-01T23:59:59.000Z

    Developments in the defect assessment procedure R6 to include high-temperature mechanisms in Leak-before-Break arguments are described. In particular, the effect of creep on the time available to detect a leak and on the crack opening area, and hence leak rate, is discussed. The competing influence of these two effects is emphasized by an example. The application to Leak-before-Break of the time-dependent failure assessment diagram approach for high temperature defect assessment is then outlined. The approach is shown to be of use in assessing the erosion of margins by creep.

  14. Use of noninvasive geophysical techniques for the in situ vitrification program. Volume 3, Discussion and recommendations

    SciTech Connect (OSTI)

    Josten, N.E.; Marts, S.T.; Carpenter, G.S.

    1991-11-01T23:59:59.000Z

    In situ vitrification (ISV) is a waste pit remediation technology that can potentially eliminate the need for pit excavation. The ISV program at the Idaho National Engineering Laboratory (INEL) funded this study to evaluate geophysical techniques that might be useful for performing detailed screening of the materials, soil conditions, and local geology of waste pits targeted for remediation. The evaluation focusses on a specific set of characterization objectives developed by ISV engineers. The objectives are based on their assessment of safety, environmental, and cost efficiency issues associated with the ISV process. A literature review of geophysical case histories was conducted and a geophysical survey was performed at the INEL simulated waste pit so that the evaluation could be based on demonstrable results. The literature review shows that all the ISV objectives are theoretically achievable because they involve physical properties (such as electrical conductivity, density, or magnetization) that can be sensed by geophysical instruments. However, most of the ISV objectives require substantially higher resolution than is achieved in typical waste site investigations, or than has been demonstrated by researches using state-of-the-art techniques. The survey at the INEL simulated waste pit yielded useful, qualitative information on subsurface materials and boundaries; but quantitative information, such as depth, size, or composition of buried materials, was subject to significant uncertainty. For ISV, the usefulness of geophysical characterization depends both on the capabilities of geophysical methods and on an assessment of the amount of uncertainty that is acceptable. Based on a preliminary assessment of these factors, the location of trench boundaries and detection of massive metallic objects are the important achievable objectives using current technology.

  15. Green's Function expansion of scalar and vector fields in the presence of a medium

    E-Print Network [OSTI]

    Fardin Kheirandish; Shahriar Salimi

    2010-10-17T23:59:59.000Z

    Based on a canonical approach and functional-integration techniques, a series expansion of Green's function of a scalar field, in the presence of a medium, is obtained. A series expansion for Lifshitz-energy, in finite-temperature, in terms of the susceptibility of the medium is derived and the whole formalism is generalized to the case of electromagnetic field in the presence of some dielectrics. A covariant formulation of the problem is presented.

  16. Use of semiconducting polymer sensors to detect bacterial cultures in medium and in irradiated ground beef

    E-Print Network [OSTI]

    Ivers, Andrea M

    2000-01-01T23:59:59.000Z

    USE OF SEMICONDUCTING POLYMER SENSORS TO DETECT BACTERIAL CULTURES IN MEDIUM AND IN IRRADIATED GROUND BEEF A Thesis by ANDREA M. IVERS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 2000 Major Subject: Food Science and Technology USE OF SEMICONDUCTING POLYMER SENSORS TO DETECT BACTERIAL CULTURES IN MEDIUM AND IN IRRADIATED GROUND BEEF A Thesis by ANDREA M. IVERS Submitted...

  17. Technical Support Document: 50% Energy Savings Design Technology Packages for Medium Office Buildings

    SciTech Connect (OSTI)

    Thornton, Brian A.; Wang, Weimin; Lane, Michael D.; Rosenberg, Michael I.; Liu, Bing

    2009-09-01T23:59:59.000Z

    This Technical Support Document (TSD) describes the process and methodology for development of the Advanced Energy Design Guide for Medium Offices (AEDG-MO or the Guide), a design guidance document which intends to provide recommendations for achieving 50% energy savings in medium office buildings that just meet the requirements of ANSI/ASHRAE/IESNA Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings.

  18. Former Laboratory scientist discusses his perspective on the Cold War in

    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 Science (SC) Environmental Assessments (EA)Budget(DANCE) Target 1AnnualLaboratory

  19. GE's Arnie Lund Discusses User Experience at an Industrial Scale | GE

    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 Science (SC) Environmental AssessmentsGeoffrey Campbell isOklahoma City, USAGEGlobal Research

  20. Better Buildings Residential Network Program Sustainability Peer Exchange Call Series: Community Readiness Assessments Call Slides and Discussion Summary, December 5, 2013

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The FutureCommentsEnergy Christopher|for1,23,Call: Combining Solar Community

  1. ESCO PRELIMINARY ASSESSMENT TEMPLATE

    Broader source: Energy.gov [DOE]

    Document presents a template and example to help energy service companies (ESCOs) conduct preliminary assessments required for Federal energy savings performance contract (ESPC) projects.

  2. Hoisting & Rigging Assessment Form

    Broader source: Energy.gov [DOE]

      Assess the institutional and department/division hoisting and rigging (including forklift, overhead cranes small hoists, and mobile cranes) requirements, policies, procedures, and work practices...

  3. Sandia Energy - Assessment Program

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

    petroleum storage and refineries; and transportation systems. Assessments were an early way to help clarify the systems as they existed in the field. This knowledge has...

  4. NATURAL GAS MARKET ASSESSMENT

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION NATURAL GAS MARKET ASSESSMENT PRELIMINARY RESULTS In Support.................................................................................... 6 Chapter 2: Natural Gas Demand.................................................................................................. 10 Chapter 3: Natural Gas Supply

  5. Guidance document for groundwater protection needs assessments

    SciTech Connect (OSTI)

    Cobb, R.P.; Berg, R.C.; Wehrmann, H.A.

    1995-01-01T23:59:59.000Z

    The purpose of this document is to serve as a guidebook for conducting Groundwater Protection Needs Assessments (GPNA). The intent of a GPNA is to provide a comprehensive evaluation of the groundwater protection measures necessary in order to assure a long-term supply of potable water that is not highly vulnerable to contamination. The Illinois Environmental Protection Agency (IEPA), the Illinois State Geological Survey (ISGS) and the Illinois State Water Survey (ISWS) have developed the approach discussed for undertaking of GPNA.

  6. Ex Parte discussion of commercial fan and blower rulemaking | Department of

    Office of Environmental Management (EM)

    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 1112011 Strategic Plan Departmentof1-SCORECARD-09-21-11April 19,Energy discussion of

  7. Upcoming Live Discussion on Energy 101: Fuel Cells | Department of Energy

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

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

  8. LM Discusses Management of LTS&M Records | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & Gas » MethaneJohnsonKristina Pflanz AboutDiscusses Management

  9. Discussion on a Code Comparison Effort for the Geothermal Technologies Program

    Office of Environmental Management (EM)

    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 1112011AT&T,Office of Policy,Policy ActDetroit EdisonCity, Arizona, SiteDiscussion on a Code

  10. Environmental assessment and social justice

    SciTech Connect (OSTI)

    Vogt, B.M.; Sorensen, J.H. [Oak Ridge National Lab., TN (United States); Hardee, H. [Tennessee Univ., Knoxville, TN (United States)

    1995-03-01T23:59:59.000Z

    The purpose of this document is to describe an approach to assessing environmental justice issues at the start of proposed project. It is a structural approach to screening using readily available census data and commercial products that emphasizes the ability to replicate results and provide systematic data that can be used to identify spatial inequities. While our discussion of the methodology addresses only public health and safety issues related to certain minority and cohort sub-groups, systematic use of methodology could provide a valuable screening tool for identifying impacts particular to low-income groups. While the assumptions can be questioned as to applicability, they are based both on theory and practical knowledge.

  11. Risk assessment and toxicology databases for health effects assessment

    SciTech Connect (OSTI)

    Lu, P.Y.; Wassom, J.S. [Oak Ridge National Laboratory, TN (United States)

    1990-12-31T23:59:59.000Z

    Scientific and technological developments bring unprecedented stress to our environment. Society has to predict the results of potential health risks from technologically based actions that may have serious, far-reaching consequences. The potential for error in making such predictions or assessment is great and multiplies with the increasing size and complexity of the problem being studied. Because of this, the availability and use of reliable data is the key to any successful forecasting effort. Scientific research and development generate new data and information. Much of the scientific data being produced daily is stored in computers for subsequent analysis. This situation provides both an invaluable resource and an enormous challenge. With large amounts of government funds being devoted to health and environmental research programs and with maintenance of our living environment at stake, we must make maximum use of the resulting data to forecast and avert catastrophic effects. Along with the readily available. The most efficient means of obtaining the data necessary for assessing the health effects of chemicals is to utilize applications include the toxicology databases and information files developed at ORNL. To make most efficient use of the data/information that has already been prepared, attention and resources should be directed toward projects that meticulously evaluate the available data/information and create specialized peer-reviewed value-added databases. Such projects include the National Library of Medicine`s Hazardous Substances Data Bank, and the U.S. Air Force Installation Restoration Toxicology Guide. These and similar value-added toxicology databases were developed at ORNL and are being maintained and updated. These databases and supporting information files, as well as some data evaluation techniques are discussed in this paper with special focus on how they are used to assess potential health effects of environmental agents. 19 refs., 5 tabs.

  12. Shift manager workload assessment - A case study

    SciTech Connect (OSTI)

    Berntson, K.; Kozak, A. [Bruce Power, P O Box 1540 B10, Tiverton, Ont. N0G 2T0 (Canada); Malcolm, J. S. [Atomic Energy of Canada Ltd., 2251 Speakman Drive, Mississauga, Ont. L5K 1B2 (Canada)

    2006-07-01T23:59:59.000Z

    In early 2003, Bruce Power restarted two of its previously laid up units in the Bruce A generating station, Units 3 and 4. However, due to challenges relating to the availability of personnel with active Shift Manager licenses, an alternate shift structure was proposed to ensure the safe operation of the station. This alternate structure resulted in a redistribution of responsibility, and a need to assess the resulting changes in workload. Atomic Energy of Canada Limited was contracted to perform a workload assessment based on the new shift structure, and to provide recommendations, if necessary, to ensure Shift Managers had sufficient resources available to perform their required duties. This paper discusses the performance of that assessment, and lessons learned as a result of the work performed during the Restart project. (authors)

  13. A discussion of the results of an in-situ comparison of three full-vector anemometers

    SciTech Connect (OSTI)

    Kelley, N.D.; Scott, G.N.; Allread, J.S.

    1990-10-01T23:59:59.000Z

    Extensive field measurements and the numerical modeling of dynamic responses associated with wind turbine rotor blades have pointed to strong interactions with coherent turbulent structures in the turbine inflow. These interactions are thought to be a major source of high-cycle fatigue in the primary structural components of wind turbines. The sources of such turbulent structures are not only natural terrain features but also the wakes from upwind turbines. Many unsteady aerodynamic processes are excited by turbulent eddies ranging in size from several rotor diameters down to the dimensions of the mean blade chord. These processes are responsible for inducing large, fluctuating loads on the turbine rotor blades. For the wind turbine generators now in use, this encompasses a spatial range of about 0.1 to 300 m. To assess our ability to measure the coherent properties of inflow turbulence over such a wide range of spatial range, we performed a study to compare three full-vector anemometers. We believe that to identify the dominant fluid dynamic properties of such flows, the instrumentation used must be capable of good fidelity measurements over the desired spatial range. The sonic anemometer is a primary candidate; we also wanted to compare the results associated with a well-designed mechanical instrument which is available at considerably less cost. Two sonic designs and as propeller-bivane were exposed to turbulent flows downstream of both extremely complex and moderately rolling terrain. This paper discusses some of the results of these comparisons with an emphasis on the measurements of turbulent fluctuations.

  14. Assessments A Training Manual

    E-Print Network [OSTI]

    Modern Industrial Assessments A Training Manual Version 2.0 Sponsored by: Produced by: Dr. Michael. Modern Industrial Assessments: A Training Manual, grew from the desires of the United States Department conservation and waste minimization / pollution prevention training courses and information agencies sponsored

  15. Service Assessment HURRICANE FRAN

    E-Print Network [OSTI]

    Service Assessment HURRICANE FRAN August 28 - September 8, 1996 U.S.Department of Commerce National-12 Visible, 753 a.m. EDT, September4, 1996. #12;Service Assessment HURRICANE FRAN August 28 Bureau Hurricane Series ERRATA NOTICE One or more conditions of the original document may affect

  16. Final Draft ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Waliser, Duane E.

    Final Draft ENVIRONMENTAL ASSESSMENT FOR THE CONSTRUCTION, MODIFICATION, AND OPERATION OF THREE OF THE CONSTELLATION PROGRAM, JOHN F. KENNEDY SPACE CENTER, FLORIDA Abstract This Environmental Assessment addresses AERONAUTICS AND SPACE ADMINISTRATION JOHN F. KENNEDY SPACE CENTER ENVIRONMENTAL PROGRAM OFFICE KENNEDY SPACE

  17. Assessment Statute Academic Policy

    E-Print Network [OSTI]

    Frean, Marcus

    ) and reliability (accurately representing the student's performance). #12;Assessment Statute Academic Policy to write clearly and accurately may be an important component of the assessment. 4.2 Passing a Course (a items. Lectures, tutorials, electronic and other distance- learning resources, practical and fieldwork

  18. Tiger Team Assessment of the Los Alamos National Laboratory

    SciTech Connect (OSTI)

    Not Available

    1991-11-01T23:59:59.000Z

    This report documents the Tiger Team Assessment of the Los Alamos National Laboratory (LANL) located in Los Alamos, New Mexico. LANL is operated for the US Department of Energy (DOE) by the University of California. The Tiger Team Assessment was conducted from September 23 to November 8, 1991, under the auspices of the DOE Office of Special Projects, Office of Assistant Secretary for Environment, Safety and Health. The assessment was comprehensive, encompassing environmental, safety, and health (ES H) disciplines; management; and contractor and DOE self-assessments. Compliance with applicable Federal, state, and local regulations; applicable DOE Orders; best management practices; and internal LANL site requirements was assessed. In addition, an evaluation of the adequacy and effectiveness of the DOE and the site contractors' management of ES H/quality assurance programs was conducted. This volume discusses findings concerning the environmental assessment.

  19. Supercritical Water Reactor Cycle for Medium Power Applications

    SciTech Connect (OSTI)

    BD Middleton; J Buongiorno

    2007-04-25T23:59:59.000Z

    Scoping studies for a power conversion system based on a direct-cycle supercritical water reactor have been conducted. The electric power range of interest is 5-30 MWe with a design point of 20 MWe. The overall design objective is to develop a system that has minimized physical size and performs satisfactorily over a broad range of operating conditions. The design constraints are as follows: Net cycle thermal efficiency {ge}20%; Steam turbine outlet quality {ge}90%; and Pumping power {le}2500 kW (at nominal conditions). Three basic cycle configurations were analyzed. Listed in order of increased plant complexity, they are: (1) Simple supercritical Rankine cycle; (2) All-supercritical Brayton cycle; and (3) Supercritical Rankine cycle with feedwater preheating. The sensitivity of these three configurations to various parameters, such as reactor exit temperature, reactor pressure, condenser pressure, etc., was assessed. The Thermoflex software package was used for this task. The results are as follows: (a) The simple supercritical Rankine cycle offers the greatest hardware simplification, but its high reactor temperature rise and reactor outlet temperature may pose serious problems from the viewpoint of thermal stresses, stability and materials in the core. (b) The all-supercritical Brayton cycle is not a contender, due to its poor thermal efficiency. (c) The supercritical Rankine cycle with feedwater preheating affords acceptable thermal efficiency with lower reactor temperature rise and outlet temperature. (d) The use of a moisture separator improves the performance of the supercritical Rankine cycle with feedwater preheating and allows for a further reduction of the reactor outlet temperature, thus it was selected for the next step. Preliminary engineering design of the supercritical Rankine cycle with feedwater preheating and moisture separation was performed. All major components including the turbine, feedwater heater, feedwater pump, condenser, condenser pump and pipes were modeled with realistic assumptions using the PEACE module of Thermoflex. A three-dimensional layout of the plant was also generated with the SolidEdge software. The results of the engineering design are as follows: (i) The cycle achieves a net thermal efficiency of 24.13% with 350/460 C reactor inlet/outlet temperatures, {approx}250 bar reactor pressure and 0.75 bar condenser pressure. The steam quality at the turbine outlet is 90% and the total electric consumption of the pumps is about 2500 kWe at nominal conditions. (ii) The overall size of the plant is attractively compact and can be further reduced if a printed-circuit-heat-exchanger (vs shell-and-tube) design is used for the feedwater heater, which is currently the largest component by far. Finally, an analysis of the plant performance at off-nominal conditions has revealed good robustness of the design in handling large changes of thermal power and seawater temperature.

  20. Fossil energy materials needs assessment

    SciTech Connect (OSTI)

    King, R.T.; Judkins, R.R. (comps.)

    1980-07-01T23:59:59.000Z

    An assessment of needs for materials of construction for fossil energy systems was prepared by ORNL staff members who conducted a literature search and interviewed various individuals and organizations that are active in the area of fossil energy technology. Critical materials problems associated with fossil energy systems are identified. Background information relative to the various technologies is given and materials research needed to enhance the viability and improve the economics of fossil energy processes is discussed. The assessment is presented on the basis of materials-related disciplines that impact fossil energy material development. These disciplines include the design-materials interface, materials fabrication technology, corrosion and materials compatibility, wear phenomena, ceramic materials, and nondestructive testing. The needs of these various disciplines are correlated with the emerging fossil energy technologies that require materials consideration. Greater emphasis is given to coal technology - particularly liquefaction, gasification, and fluidized bed combustion - than to oil and gas technologies because of the perceived inevitability of US dependence on coal conversion and utilization systems as a major part of our total energy production.

  1. Ammonia as an Alternative Energy Storage Medium for Hydrogen Fuel Cells: Scientific and Technical Review for Near-Term Stationary Power Demonstration Projects, Final Report

    E-Print Network [OSTI]

    Lipman, Tim; Shah, Nihar

    2007-01-01T23:59:59.000Z

    DTIC Review: Energy Supply Alternatives: ADA433359, 2004.Ammonia as an Alternative Energy Storage Medium for Hydrogen2007 Ammonia As an Alternative Energy Storage Medium for

  2. Environmental assessment of electricity scenarios with Life Cycle Assessment

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    been assessed with Life Cycle Assessment (LCA) studies [1], [2], [3] and [4]. However environmentalEnvironmental assessment of electricity scenarios with Life Cycle Assessment Touria Larbi1 impacts assessment of scenarios is very rarely evaluated through a life cycle perspective partly because

  3. Summing up of discussion on improvement trends in coke-oven gas purification flowsheets

    SciTech Connect (OSTI)

    Zemblevskii, K.K.

    1983-01-01T23:59:59.000Z

    Reference is made to a previously published article that included flowsheets for purification of coke-oven gas. It is concluded that the flowsheets for a process using arsenic-soda and vacuum-carbonate methods of sulfur removal in which the gas is cooled to 303-308/sup 0/K are seriously in error. Schemes involving minor refrigeration, sulfur removal by the circulating ammonia method and ammonia recovery as ammonia liquor are seen as promising but in need of further improvement. One scheme discussed (the VUKhIN scheme) involves ammonia recovery by the circulating phosphate method and sulfur removal by the circulating ammonia method is seen as a replacement for the minor refrigeration method. Since liquid ammonia consumption in agriculture is continually increasing, schemes that result in production of liquid ammonia rather than ammonia liquor should be seriously considered.

  4. Discussion on common errors in analyzing sea level accelerations, solar trends and global warming

    E-Print Network [OSTI]

    Scafetta, Nicola

    2013-01-01T23:59:59.000Z

    Errors in applying regression models and wavelet filters used to analyze geophysical signals are discussed: (1) multidecadal natural oscillations (e.g. the quasi 60-year Atlantic Multidecadal Oscillation (AMO), North Atlantic Oscillation (NAO) and Pacific Decadal Oscillation (PDO)) need to be taken into account for properly quantifying anomalous accelerations in tide gauge records such as in New York City; (2) uncertainties and multicollinearity among climate forcing functions prevent a proper evaluation of the solar contribution to the 20th century global surface temperature warming using overloaded linear regression models during the 1900-2000 period alone; (3) when periodic wavelet filters, which require that a record is pre-processed with a reflection methodology, are improperly applied to decompose non-stationary solar and climatic time series, Gibbs boundary artifacts emerge yielding misleading physical interpretations. By correcting these errors and using optimized regression models that reduce multico...

  5. Discussion of comments from a peer review of a technique for human event analysis (ATHEANA)

    SciTech Connect (OSTI)

    Forester, J.A. [Sandia National Labs., Albuquerque, NM (United States); Ramey-Smith, A. [Nuclear Regulatory Commission, Washington, DC (United States); Bley, D.C. [Buttonwood Consulting, Inc. (United States); Kolaczkowski, A.M.; Cooper, S.E. [Science Applications International Corp. (United States); Wreathall, J. [John Wreathall and Company (United States)

    1998-09-01T23:59:59.000Z

    In May of 1998, a technical basis and implementation guidelines document for A Technique for Human Event Analysis (ATHEANA) was issued as a draft report for public comment (NUREG-1624). In conjunction with the release of the draft NUREG, a paper review of the method, its documentation, and the results of an initial test of the method was held over a two-day period in Seattle, Washington, in June of 1998. Four internationally-known and respected experts in human reliability analysis (HRA) were selected to serve as the peer reviewers and were paid for their services. In addition, approximately 20 other individuals with an interest in HRA and ATHEANA also attended the peer review meeting and were invited to provide comments. The peer review team was asked to comment on any aspect of the method or the report in which improvements could be made and to discuss its strengths and weaknesses. All of the reviewers thought the ATEANA method had made significant contributions to the field of PRA/HRA, in particular by addressing the most important open questions and issues in HRA, by attempting to develop an integrated approach, and by developing a framework capable of identifying types of unsafe actions that generally have not been considered using existing methods. The reviewers had many concerns about specific aspects of the methodology and made many recommendations for ways to improve and extend the method, and to make its application more cost effective and useful to PRA in general. Details of the reviewers` comments and the ATHEANA team`s responses to specific criticisms will be discussed.

  6. Visualizing multiphase flow and trapped fluid configurations in a model three-dimensional porous medium

    E-Print Network [OSTI]

    Amber T. Krummel; Sujit S. Datta; Stefan Münster; David A. Weitz

    2013-01-21T23:59:59.000Z

    We report an approach to fully visualize the flow of two immiscible fluids through a model three-dimensional (3D) porous medium at pore-scale resolution. Using confocal microscopy, we directly image the drainage of the medium by the non-wetting oil and subsequent imbibition by the wetting fluid. During imbibition, the wetting fluid pinches off threads of oil in the narrow crevices of the medium, forming disconnected oil ganglia. Some of these ganglia remain trapped within the medium. By resolving the full 3D structure of the trapped ganglia, we show that the typical ganglion size, and the total amount of residual oil, decreases as the capillary number Ca increases; this behavior reflects the competition between the viscous pressure in the wetting fluid and the capillary pressure required to force oil through the pores of the medium. This work thus shows how pore-scale fluid dynamics influence the trapped fluid configurations in multiphase flow through 3D porous media.

  7. System and method for monitoring water content or other dielectric influences in a medium

    DOE Patents [OSTI]

    Cherry, Robert S. (Idaho Falls, ID); Anderson, Allen A. (Firth, ID)

    2001-01-01T23:59:59.000Z

    A sensor system is provided that measures water content or other detectable properties in a medium along the entire length of the sensor at any point in time. The sensor system includes an electromagnetic signal generator and a transmission line disposed in a medium to be monitored. Alternatively, the transmission line can be configured for movement across a medium to be monitored, or the transmission line can be fixed relative to a moving medium being monitored. A signal is transmitted along the transmission line at predetermined frequencies, and the signal is returned back along the transmission line and/or into an optional receive line in proximity to the transmission line. The returned signal is processed to generate a one-dimensional data output profile that is a function of a detectable property of the medium. The data output profile can be mapped onto a physical system to generate a two-dimensional or three-dimensional profile if desired. The sensor system is useful in a variety of different applications such as agriculture, horticulture, biofiltration systems for industrial offgases, leak detection in landfills or drum storage facilities at buried waste sites, and in many other applications.

  8. Process for producing biodiesel, lubricants, and fuel and lubricant additives in a critical fluid medium

    DOE Patents [OSTI]

    Ginosar, Daniel M.; Fox, Robert V.

    2005-05-03T23:59:59.000Z

    A process for producing alkyl esters useful in biofuels and lubricants by transesterifying glyceride- or esterifying free fatty acid-containing substances in a single critical phase medium is disclosed. The critical phase medium provides increased reaction rates, decreases the loss of catalyst or catalyst activity and improves the overall yield of desired product. The process involves the steps of dissolving an input glyceride- or free fatty acid-containing substance with an alcohol or water into a critical fluid medium; reacting the glyceride- or free fatty acid-containing substance with the alcohol or water input over either a solid or liquid acidic or basic catalyst and sequentially separating the products from each other and from the critical fluid medium, which critical fluid medium can then be recycled back in the process. The process significantly reduces the cost of producing additives or alternatives to automotive fuels and lubricants utilizing inexpensive glyceride- or free fatty acid-containing substances, such as animal fats, vegetable oils, rendered fats, and restaurant grease.

  9. Method for electrically producing dispersions of a nonconductive fluid in a conductive medium

    DOE Patents [OSTI]

    DePaoli, David W. (Knoxville, TN); Tsouris, Constantinos (Oak Ridge, TN); Feng, James Q. (Fairport, NY)

    1998-01-01T23:59:59.000Z

    A method for use in electrically forming dispersions of a nonconducting fluid in a conductive medium that minimizes power consumption, gas generation, and sparking between the electrode of the nozzle and the conductive medium. The method utilizes a nozzle having a passageway, the wall of which serves as the nozzle electrode, for the transport of the nonconducting fluid into the conductive medium. A second passageway provides for the transport of a flowing low conductivity buffer fluid which results in a region of the low conductivity buffer fluid immediately adjacent the outlet from the first passageway to create the necessary protection from high current drain and sparking. An electrical potential difference applied between the nozzle electrode and an electrode in contact with the conductive medium causes formation of small droplets or bubbles of the nonconducting fluid within the conductive medium. A preferred embodiment has the first and second passageways arranged in a concentric configuration, with the outlet tip of the first passageway withdrawn into the second passageway.

  10. Method for electrically producing dispersions of a nonconductive fluid in a conductive medium

    DOE Patents [OSTI]

    DePaoli, D.W.; Tsouris, C.; Feng, J.Q.

    1998-06-09T23:59:59.000Z

    A method is described for use in electrically forming dispersions of a nonconducting fluid in a conductive medium that minimizes power consumption, gas generation, and sparking between the electrode of the nozzle and the conductive medium. The method utilizes a nozzle having a passageway, the wall of which serves as the nozzle electrode, for the transport of the nonconducting fluid into the conductive medium. A second passageway provides for the transport of a flowing low conductivity buffer fluid which results in a region of the low conductivity buffer fluid immediately adjacent the outlet from the first passageway to create the necessary protection from high current drain and sparking. An electrical potential difference applied between the nozzle electrode and an electrode in contact with the conductive medium causes formation of small droplets or bubbles of the nonconducting fluid within the conductive medium. A preferred embodiment has the first and second passageways arranged in a concentric configuration, with the outlet tip of the first passageway withdrawn into the second passageway. 4 figs.

  11. Integrated assessment briefs

    SciTech Connect (OSTI)

    NONE

    1995-04-01T23:59:59.000Z

    Integrated assessment can be used to evaluate and clarify resource management policy options and outcomes for decision makers. The defining characteristics of integrated assessment are (1) focus on providing information and analysis that can be understood and used by decision makers rather than for merely advancing understanding and (2) its multidisciplinary approach, using methods, styles of study, and considerations from a broader variety of technical areas than would typically characterize studies produced from a single disciplinary standpoint. Integrated assessment may combine scientific, social, economic, health, and environmental data and models. Integrated assessment requires bridging the gap between science and policy considerations. Because not everything can be valued using a single metric, such as a dollar value, the integrated assessment process also involves evaluating trade-offs among dissimilar attributes. Scientists at Oak Ridge National Laboratory (ORNL) recognized the importance and value of multidisciplinary approaches to solving environmental problems early on and have pioneered the development of tools and methods for integrated assessment over the past three decades. Major examples of ORNL`s experience in the development of its capabilities for integrated assessment are given.

  12. NREL's DRIVE tool delivers precise and easy-to-interpret assessments in a fraction of the time.

    E-Print Network [OSTI]

    NREL's DRIVE tool delivers precise and easy-to-interpret assessments in a fraction of the time and Evaluation (DRIVE) tool produces representative testable drive cycles at record speed from vehicle data of medium- and heavy-duty vehicle fleets, use of the tool has expanded to encompass the full range

  13. Do Markets Reduce Costs? Assessing the Impact of Regulatory Restructuring on U.S. Electric Generation Efficiency

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Do Markets Reduce Costs? Assessing the Impact of Regulatory Restructuring on U.S. Electric-of-service regulation to market-oriented environments for many U.S. electric generating plants. Our estimates of input their wholesale electricity markets improved the most. The results suggest modest medium-term efficiency benefits

  14. An Analysis of Two Industrial Assessment Center Extended Assessments

    E-Print Network [OSTI]

    Farouz, H. E.; Gafford, G. D.; Eggebrecht, J. A.; Heffington, W. M.

    The Industrial Assessment Center at Texas A&M University extended assessments by spending about two extra days at each of three manufacturing plants. The extended assessments are characterized by use of sophisticated electronic monitoring equipment...

  15. Radiation drag driven mass accretion in clumpy interstellar medium: implications for the supermassive black hole-to-bulge relation

    E-Print Network [OSTI]

    Nozomu Kawakatu; Masayuki Umemura

    2001-11-22T23:59:59.000Z

    We quantitatively scrutinize the effects of the radiation drag arising from the radiation fields in a galactic bulge in order to examine the possibility that the radiation drag could be an effective mechanism to extract angular momentum in a spheroidal system like a bulge and allow plenty of gas to accrete onto the galactic center. For this purpose, we numerically solve the relativistic radiation hydrodynamical equation coupled with the accurate radiative transfer and quantitatively assess the radiation drag efficiency. As a result, we find that in an optically thick regime the radiation drag efficiency is sensitively dependent on the density distributions of interstellar medium (ISM). The efficiency drops according to $\\tau_{\\rm T}^{-2}$ in an optically thick {\\it uniform} ISM, where $\\tau_{\\rm T}$ is the total optical depth of the dusty ISM, whereas the efficiency remains almost constant at a high level if the ISM is {\\it clumpy}. Hence, if the bulge formation begins with a star formation event in a clumpy ISM, the radiation drag will effectively work to remove the angular momentum and the accreted gas may form a supermassive black hole. As a natural consequence, this mechanism reproduces a putative linear relation between the mass of a supermassive black hole and the mass of a galactic bulge, although further detailed modeling for stellar evolution is required for the more precise prediction.

  16. Energy dependence of $\\bar{K}N$ interaction in nuclear medium

    E-Print Network [OSTI]

    A. Cieply

    2011-12-05T23:59:59.000Z

    When the $\\bar{K}N$ system is submerged in nuclear medium the $\\bar{K}N$ scattering amplitude and the final state branching ratios exhibit a strong energy dependence when going to energies below the $\\bar{K}N$ threshold. A sharp increase of $\\bar{K}N$ attraction below the $\\bar{K}N$ threshold provides a link between shallow $\\bar{K}$-nuclear potentials based on the chiral $\\bar{K}N$ amplitude evaluated at threshold and the deep phenomenological optical potentials obtained in fits to kaonic atoms data. We show the energy dependence of the in-medium $K^{-}p$ amplitude and demonstrate the impact of energy dependent branching ratios on the $\\Lambda$-hypernuclear production rates. \\keywords{kaon-nucleon amplitude \\and nuclear medium \\and hypernuclei

  17. Skewon-Axion Medium and Soft-and-Hard/DB Boundary Condition

    E-Print Network [OSTI]

    Ismo V. Lindell; Ari Sihvola

    2012-01-20T23:59:59.000Z

    The class of skewon-axion media can be defined in a simple and natural manner applying four-dimensional differential-form representation of electromagnetic fields and media. It has been recently shown that an interface of a uniaxial skewon-axion medium acts as a DB boundary requiring vanishing normal components of the D and B vectors. In the present paper a more general skewon-axion medium is considered. It is shown that a planar interface of such a medium acts as a boundary generalizing both soft-and-hard (SH) and DB boundary conditions to SHDB conditions. Reflection of a plane wave from a planar SHDB boundary is studied. It is shown that for the two eigenpolarizations the boundary can be replaced by equivalent PEC or PMC boundaries. The theory is tested with a numerical example.

  18. Selective coupling of optical energy into the fundamental diffusion mode of a scattering medium

    E-Print Network [OSTI]

    Ojambati, Oluwafemi S; Lagendijk, Ad; Mosk, Allard P; Vos, Willem L

    2015-01-01T23:59:59.000Z

    We demonstrate experimentally that optical wavefront shaping selectively couples light into the fundamental diffusion mode of a scattering medium. The total energy density inside a scattering medium of zinc oxide (ZnO) nanoparticles was probed by measuring the emitted fluorescent power of spheres that were randomly positioned inside the medium. The fluorescent power of an optimized incident wave front is observed to be enhanced compared to a non-optimized incident front. The observed enhancement increases with sample thickness. Based on diffusion theory, we derive a model wherein the distribution of energy density of wavefront-shaped light is described by the fundamental diffusion mode. The agreement between our model and the data is striking not in the least since there are no adjustable parameters. Enhanced total energy density is crucial to increase the efficiency of white LEDs, solar cells, and of random lasers, as well as to realize controlled illumination in biomedical optics.

  19. Can the Abraham Light Momentum and Energy in a Medium Constitute a Lorentz Four-Vector?

    E-Print Network [OSTI]

    Changbiao Wang

    2014-09-04T23:59:59.000Z

    By analyzing the Einstein-box thought experiment with the principle of relativity, it is shown that Abraham's light momentum and energy in a medium cannot constitute a Lorentz four-vector, and they consequentially break global momentum and energy conservation laws. In contrast, Minkowski's momentum and energy always constitute a Lorentz four-vector no matter whether in a medium or in vacuum, and the Minkowski's momentum is the unique correct light momentum. A momentum-associated photon mass in a medium is exposed, which explains why only the Abraham's momentum is derived in the traditional "center-of-mass-energy" approach. The EM boundary-condition matching approach, combined with Einstein light-quantum hypothesis, is proposed to analyze this thought experiment, and it is found for the first time that only from Maxwell equations without resort to the relativity, the correctness of light momentum definitions cannot be identified. Optical pulling effect is studied as well.

  20. Time Evolution of Tunneling in Thermal Medium -- Environment-driven Excited Tunneling --

    E-Print Network [OSTI]

    Sh. Matsumoto; M. Yoshimura

    2003-07-18T23:59:59.000Z

    Time evolution of tunneling phenomena proceeding in thermal medium is studied using a standard model of environment interaction. A semiclassical probability formula for the particle motion in a metastable state of one dimensional system put in thermal medium is combined with the formula of quantum penetration factor through a potential barrier, to derive the tunneling rate in medium. Effect of environment, its influence on time evolution in particular, is clarified in a real-time formalism. A nonlinear resonance effect is shown to enhance the tunneling rate at finite times of order $2/\\eta $, with $\\eta $ the friction coefficient. In the linear approximation this effect has relevance to the parametric resonance. This effect enhances the possibility of early termination of the cosmological phase transition much prior to the typical Hubble time.