Sample records for modified energy factor

  1. Computing modified Newton directions using a partial Cholesky factorization

    SciTech Connect (OSTI)

    Forsgren, A. [Royal Inst. of Tech., Stockholm (Sweden). Dept. of Mathematics; Gill, P.E. [California Univ., San Diego, La Jolla, CA (United States); Murray, W. [Stanford Univ., CA (United States). Systems Optimization Lab.

    1993-03-01T23:59:59.000Z

    The effectiveness of Newton`s method for finding an unconstrained minimizer of a strictly convex twice continuously differentiable function has prompted the proposal of various modified Newton inetliods for the nonconvex case. Linesearch modified Newton methods utilize a linear combination of a descent direction and a direction of negative curvature. If these directions are sufficient in a certain sense, and a suitable linesearch is used, the resulting method will generate limit points that satisfy the second-order necessary conditions for optimality. We propose an efficient method for computing a descent direction and a direction of negative curvature that is based on a partial Cholesky factorization of the Hessian. This factorization not only gives theoretically satisfactory directions, but also requires only a partial pivoting strategy, i.e., the equivalent of only two rows of the Schur complement need be examined at each step.

  2. Computing modified Newton directions using a partial Cholesky factorization

    SciTech Connect (OSTI)

    Forsgren, A. (Royal Inst. of Tech., Stockholm (Sweden). Dept. of Mathematics); Gill, P.E. (California Univ., San Diego, La Jolla, CA (United States)); Murray, W. (Stanford Univ., CA (United States). Systems Optimization Lab.)

    1993-03-01T23:59:59.000Z

    The effectiveness of Newton's method for finding an unconstrained minimizer of a strictly convex twice continuously differentiable function has prompted the proposal of various modified Newton inetliods for the nonconvex case. Linesearch modified Newton methods utilize a linear combination of a descent direction and a direction of negative curvature. If these directions are sufficient in a certain sense, and a suitable linesearch is used, the resulting method will generate limit points that satisfy the second-order necessary conditions for optimality. We propose an efficient method for computing a descent direction and a direction of negative curvature that is based on a partial Cholesky factorization of the Hessian. This factorization not only gives theoretically satisfactory directions, but also requires only a partial pivoting strategy, i.e., the equivalent of only two rows of the Schur complement need be examined at each step.

  3. Consumer Acceptance of Genetically Modified Foods in Korea: Factor and Cluster Analysis

    E-Print Network [OSTI]

    Neimark, Alexander V.

    Consumer Acceptance of Genetically Modified Foods in Korea: Factor and Cluster Analysis Benjamin #12;Consumer Acceptance of Genetically Modified Foods In Korea: Factor and Cluster Analysis Abstract and desirability of food biotechnology 2 #12;Introduction Consumer acceptance of genetically modified (GM) 1 food

  4. Kaluza-Klein Cosmology With Modified Holographic Dark Energy

    E-Print Network [OSTI]

    M. Sharif; Farida Khanum

    2011-06-13T23:59:59.000Z

    We investigate the compact Kaluza-Klein cosmology in which modified holographic dark energy is interacting with dark matter. Using this scenario, we evaluate equation of state parameter as well as equation of evolution of the modified holographic dark energy. Further, it is shown that the generalized second law of thermodynamics holds without any constraint.

  5. Modified Regge calculus as an explanation of dark energy

    E-Print Network [OSTI]

    W. M. Stuckey; T. J. McDevitt; M. Silberstein

    2012-01-26T23:59:59.000Z

    Using Regge calculus, we construct a Regge differential equation for the time evolution of the scale factor $a(t)$ in the Einstein-de Sitter cosmology model (EdS). We propose two modifications to the Regge calculus approach: 1) we allow the graphical links on spatial hypersurfaces to be large, as in direct particle interaction when the interacting particles reside in different galaxies, and 2) we assume luminosity distance $D_L$ is related to graphical proper distance $D_p$ by the equation $D_L = (1+z)\\sqrt{\\overrightarrow{D_p}\\cdot \\overrightarrow{D_p}}$, where the inner product can differ from its usual trivial form. The modified Regge calculus model (MORC), EdS and $\\Lambda$CDM are compared using the data from the Union2 Compilation, i.e., distance moduli and redshifts for type Ia supernovae. We find that a best fit line through $\\displaystyle \\log{(\\frac{D_L}{Gpc})}$ versus $\\log{z}$ gives a correlation of 0.9955 and a sum of squares error (SSE) of 1.95. By comparison, the best fit $\\Lambda$CDM gives SSE = 1.79 using $H_o$ = 69.2 km/s/Mpc, $\\Omega_{M}$ = 0.29 and $\\Omega_{\\Lambda}$ = 0.71. The best fit EdS gives SSE = 2.68 using $H_o$ = 60.9 km/s/Mpc. The best fit MORC gives SSE = 1.77 and $H_o$ = 73.9 km/s/Mpc using $R = A^{-1}$ = 8.38 Gcy and $m = 1.71\\times 10^{52}$ kg, where $R$ is the current graphical proper distance between nodes, $A^{-1}$ is the scaling factor from our non-trival inner product, and $m$ is the nodal mass. Thus, MORC improves EdS as well as $\\Lambda$CDM in accounting for distance moduli and redshifts for type Ia supernovae without having to invoke accelerated expansion, i.e., there is no dark energy and the universe is always decelerating.

  6. Modified GBIG Scenario as a Successful Alternative for Dark Energy

    E-Print Network [OSTI]

    Nozari, Kourosh

    2009-01-01T23:59:59.000Z

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  7. Modified GBIG Scenario as an Alternative for Dark Energy

    E-Print Network [OSTI]

    Kourosh Nozari; Narges Rashidi

    2009-09-02T23:59:59.000Z

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  8. Modified definition of group velocity and electromagnetic energy conservation equation

    E-Print Network [OSTI]

    Changbiao Wang

    2015-01-19T23:59:59.000Z

    The classical definition of group velocity has two flaws: (a) the group velocity can be greater than the phase velocity in a non-dispersive, lossless, non-conducting, anisotropic uniform medium; (b) the definition is not consistent with the principle of relativity for a plane wave in a moving isotropic uniform medium. To remove the flaws, a modified definition is proposed. A criterion is set up to identify the justification of group velocity definition. A "superluminal power flow" is constructed to show that the electromagnetic energy conservation equation cannot uniquely define the power flow if the principle of Fermat is not taken into account.

  9. Introduction to Modified Gravity and Gravitational Alternative for Dark Energy

    E-Print Network [OSTI]

    S. Nojiri; S. D. Odintsov

    2006-03-31T23:59:59.000Z

    We review various modified gravities considered as gravitational alternative for dark energy. Specifically, we consider the versions of $f(R)$, $f(G)$ or $f(R,G)$ gravity, model with non-linear gravitational coupling or string-inspired model with Gauss-Bonnet-dilaton coupling in the late universe where they lead to cosmic speed-up. It is shown that some of such theories may pass the Solar System tests. On the same time, it is demonstrated that they have quite rich cosmological structure: they may naturally describe the effective (cosmological constant, quintessence or phantom) late-time era with a possible transition from decceleration to acceleration thanks to gravitational terms which increase with scalar curvature decrease. The possibility to explain the coincidence problem as the manifestation of the universe expansion in such models is mentioned. The late (phantom or quintessence) universe filled with dark fluid with inhomogeneous equation of state (where inhomogeneous terms are originated from the modified gravity) is also described.

  10. Structure formation in modified gravity models alternative to dark energy

    E-Print Network [OSTI]

    Kazuya Koyama

    2006-01-10T23:59:59.000Z

    We study structure formation in phenomenological models in which the Friedmann equation receives a correction of the form $H^{\\alpha}/r_c^{2-\\alpha}$, which realize an accelerated expansion without dark energy. In order to address structure formation in these model, we construct simple covariant gravitational equations which give the modified Friedmann equation with $\\alpha=2/n$ where $n$ is an integer. For $n=2$, the underlying theory is known as a 5D braneworld model (the DGP model). Thus the models interpolate between the DGP model ($n=2, \\alpha=1$) and the LCDM model in general relativity ($n \\to \\infty, \\alpha \\to 0$). Using the covariant equations, cosmological perturbations are analyzed. It is shown that in order to satisfy the Bianchi identity at a perturbative level, we need to introduce a correction term $E_{\\mu \

  11. Structure formation in modified gravity models alternative to dark energy

    E-Print Network [OSTI]

    Koyama, K

    2006-01-01T23:59:59.000Z

    We study structure formation in phenomenological models in which the Friedmann equation receives a correction of the form $H^{\\alpha}/r_c^{2-\\alpha}$, which realize an accelerated expansion without dark energy. In order to address structure formation in these model, we construct simple covariant gravitational equations which give the modified Friedmann equation with $\\alpha=2/n$ where $n$ is an integer. For $n=2$, the underlying theory is known as a 5D braneworld model (the DGP model). Thus the models interpolate between the DGP model ($n=2, \\alpha=1$) and the LCDM model in general relativity ($n \\to \\infty, \\alpha \\to 0$). Using the covariant equations, cosmological perturbations are analyzed. It is shown that in order to satisfy the Bianchi identity at a perturbative level, we need to introduce a correction term $E_{\\mu \

  12. Introduction to Modified Gravity and Gravitational Alternative for Dark Energy

    E-Print Network [OSTI]

    Nojiri, S

    2006-01-01T23:59:59.000Z

    We review various modified gravities considered as gravitational alternative for dark energy. Specifically, we consider the versions of $f(R)$, $f(G)$ or $f(R,G)$ gravity, model with non-linear gravitational coupling or string-inspired model with Gauss-Bonnet-dilaton coupling in the late universe where they lead to cosmic speed-up. It is shown that some of such theories may pass the Solar System tests. On the same time, it is demonstrated that they have quite rich cosmological structure: they may naturally describe the effective (cosmological constant, quintessence or phantom) late-time era with a possible transition from decceleration to acceleration thanks to gravitational terms which increase with scalar curvature decrease. The possibility to explain the coincidence problem as the manifestation of the universe expansion in such models is mentioned. The late (phantom or quintessence) universe filled with dark fluid with inhomogeneous equation of state (where inhomogeneous terms are originated from the modif...

  13. Planck 2015 results. XIV. Dark energy and modified gravity

    E-Print Network [OSTI]

    Ade, P A R; Arnaud, M; Ashdown, M; Aumont, J; Baccigalupi, C; Banday, A J; Barreiro, R B; Bartolo, N; Battaner, E; Battye, R; Benabed, K; Benoît, A; Benoit-Lévy, A; Bernard, J -P; Bersanelli, M; Bielewicz, P; Bonaldi, A; Bonavera, L; Bond, J R; Borrill, J; Bouchet, F R; Bucher, M; Burigana, C; Butler, R C; Calabrese, E; Cardoso, J -F; Catalano, A; Challinor, A; Chamballu, A; Chiang, H C; Christensen, P R; Church, S; Clements, D L; Colombi, S; Colombo, L P L; Combet, C; Couchot, F; Coulais, A; Crill, B P; Curto, A; Cuttaia, F; Danese, L; Davies, R D; Davis, R J; de Bernardis, P; de Rosa, A; de Zotti, G; Delabrouille, J; Désert, F -X; Diego, J M; Dole, H; Donzelli, S; Doré, O; Douspis, M; Ducout, A; Dupac, X; Efstathiou, G; Elsner, F; Enßlin, T A; Eriksen, H K; Fergusson, J; Finelli, F; Forni, O; Frailis, M; Fraisse, A A; Franceschi, E; Frejsel, A; Galeotta, S; Galli, S; Ganga, K; Giard, M; Giraud-Héraud, Y; Gjerløw, E; González-Nuevo, J; Górski, K M; Gratton, S; Gregorio, A; Gruppuso, A; Gudmundsson, J E; Hansen, F K; Hanson, D; Harrison, D L; Heavens, A; Helou, G; Henrot-Versillé, S; Hernández-Monteagudo, C; Herranz, D; Hildebrandt, S R; Hivon, E; Hobson, M; Holmes, W A; Hornstrup, A; Hovest, W; Huang, Z; Huffenberger, K M; Hurier, G; Jaffe, A H; Jaffe, T R; Jones, W C; Juvela, M; Keihänen, E; Keskitalo, R; Kisner, T S; Knoche, J; Kunz, M; Kurki-Suonio, H; Lagache, G; Lähteenmäki, A; Lamarre, J -M; Lasenby, A; Lattanzi, M; Lawrence, C R; Leonardi, R; Lesgourgues, J; Levrier, F; Lewis, A; Liguori, M; Lilje, P B; Linden-Vørnle, M; López-Caniego, M; Lubin, P M; Ma, Y -Z; Macías-Pérez, J F; Maggio, G; Mandolesi, N; Mangilli, A; Marchini, A; Martin, P G; Martinelli, M; Martínez-González, E; Masi, S; Matarrese, S; Mazzotta, P; McGehee, P; Meinhold, P R; Melchiorri, A; Mendes, L; Mennella, A; Migliaccio, M; Mitra, S; Miville-Deschênes, M -A; Moneti, A; Montier, L; Morgante, G; Mortlock, D; Moss, A; Munshi, D; Murphy, J A; Narimani, A; Naselsky, P; Nati, F; Natoli, P; Netterfield, C B; Nørgaard-Nielsen, H U; Noviello, F; Novikov, D; Novikov, I; Oxborrow, C A; Paci, F; Pagano, L; Pajot, F; Paoletti, D; Pasian, F; Patanchon, G; Pearson, T J; Perdereau, O; Perotto, L; Perrotta, F; Pettorino, V; Piacentini, F; Piat, M; Pierpaoli, E; Pietrobon, D; Plaszczynski, S; Pointecouteau, E; Polenta, G; Popa, L; Pratt, G W; Prézeau, G; Prunet, S; Puget, J -L; Rachen, J P; Reach, W T; Rebolo, R; Reinecke, M; Remazeilles, M; Renault, C; Renzi, A; Ristorcelli, I; Rocha, G; Rosset, C; Rossetti, M; Roudier, G; Rowan-Robinson, M; Rubiño-Martín, J A; Rusholme, B; Salvatelli, V; Sandri, M; Santos, D; Savelainen, M; Savini, G; Schaefer, B M; Scott, D; Seiffert, M D; Shellard, E P S; Spencer, L D; Stolyarov, V; Stompor, R; Sudiwala, R; Sunyaev, R; Sutton, D; Suur-Uski, A -S; Sygnet, J -F; Tauber, J A; Terenzi, L; Toffolatti, L; Tomasi, M; Tristram, M; Tucci, M; Tuovinen, J; Valenziano, L; Valiviita, J; Van Tent, B; Viel, M; Vielva, P; Villa, F; Wade, L A; Wandelt, B D; Wehus, I K; White, M; Yvon, D; Zacchei, A; Zonca, A

    2015-01-01T23:59:59.000Z

    We study the implications of Planck data for models of dark energy (DE) and modified gravity (MG), beyond the cosmological constant scenario. We start with cases where the DE only directly affects the background evolution, considering Taylor expansions of the equation of state, principal component analysis and parameterizations related to the potential of a minimally coupled DE scalar field. When estimating the density of DE at early times, we significantly improve present constraints. We then move to general parameterizations of the DE or MG perturbations that encompass both effective field theories and the phenomenology of gravitational potentials in MG models. Lastly, we test a range of specific models, such as k-essence, f(R) theories and coupled DE. In addition to the latest Planck data, for our main analyses we use baryonic acoustic oscillations, type-Ia supernovae and local measurements of the Hubble constant. We further show the impact of measurements of the cosmological perturbations, such as redshif...

  14. Separating Dark Physics from Physical Darkness: Minimalist Modified Gravity vs. Dark Energy

    E-Print Network [OSTI]

    Huterer, Dragan

    2009-01-01T23:59:59.000Z

    Modified Gravity vs. Dark Energy Dragan Huterer 1 and EricModi?ed Gravity vs. Dark Energy Dragan Huterer 1 and Eric V.arising from a physical dark energy or a modi?ed Fried- mann

  15. Douglas Factors | 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 1112011AT&T,Office of Policy,Policy ActDetroit7471 FederalDonna Friend Donna

  16. From Saudi Arabia to Venezuela: Energy Resources, Market Factors & ConflictsEnergy Resources, Market Factors & Conflicts

    E-Print Network [OSTI]

    O'Donnell, Tom

    (Brazil, Russia, India and China) will end U.S. supremacy in the dollar based oil market? Lastly, weFrom Saudi Arabia to Venezuela: Energy Resources, Market Factors & ConflictsEnergy Resources, Market Factors & Conflicts Dr. Tom O'Donnell Friday, 12:00 ­ 2:48 PM Room 125, Mendenhall Laboratory

  17. Can We Improve Energy Efficiency of Secure Disk Systems without Modifying Security Mechanisms?

    E-Print Network [OSTI]

    Qin, Xiao

    Can We Improve Energy Efficiency of Secure Disk Systems without Modifying Security Mechanisms--Improving energy efficiency of security-aware storage systems is challenging, because security and energy security and energy efficiency is to profile encryption algorithms to decide if storage systems would

  18. EcoFactor Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazel Crest, Illinois: EnergyEastport, Maine:EauEcoFactor Inc Jump to:

  19. Statefinder diagnostic and stability of modified gravity consistent with holographic and new agegraphic dark energy

    E-Print Network [OSTI]

    M. R. Setare; Mubasher Jamil

    2010-08-27T23:59:59.000Z

    Recently one of us derived the action of modified gravity consistent with the holographic and new-agegraphic dark energy. In this paper, we investigate the stability of the Lagrangians of the modified gravity as discussed in [M. R. Setare, Int. J. Mod. Phys. D 17 (2008) 2219; M. R. Setare, Astrophys. Space Sci. 326 (2010) 27]. We also calculate the statefinder parameters which classify our dark energy model.

  20. Energy Carrier Transport In Surface-Modified Carbon Nanotubes 

    E-Print Network [OSTI]

    Ryu, Yeontack

    2012-11-30T23:59:59.000Z

    on carbon nanotubes was employed to enhance their electrical conductivity, to improve thermoelectric power factor by modulating their electrical conductance and thermopower, or to obtain n-type converted carbon nanotube. The electrical conductivity of double...

  1. Factor CO2 | Open Energy Information

    Open Energy Info (EERE)

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

  2. Nevada Application Modify Water Right | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall, Pennsylvania: EnergyEnergyPPCR) JumpAir Quality Permitting Webpage JumpRight

  3. Novel modified zeolites for energy-efficient hydrocarbon separations.

    SciTech Connect (OSTI)

    Arruebo, Manuel (University of Colorado, Boulder, CO); Dong, Junhang; Anderson, Thomas (Burns and McDonnell, Kansas City, MO); Gu, Xuehong; Gray, Gary (Goodyear Chemical Company, Akron, OH); Bennett, Ron (Goodyear Chemical Company, Akron, OH); Nenoff, Tina Maria; Kartin, Mutlu; Johnson, Kaylynn (Goodyear Chemical Company, Akron, OH); Falconer, John (University of Colorado, Boulder, CO); Noble, Richard (University of Colorado, Boulder, CO)

    2006-11-01T23:59:59.000Z

    We present synthesis, characterization and testing results of our applied research project, which focuses on the effects of surface and skeletal modification of zeolites for significant enhancements in current hydrocarbon (HC) separations. Zeolites are commonly used by the chemical and petroleum industries as catalysts and ion-exchangers. They have high potential for separations owing to their unique pore structures and adsorption properties and their thermal, mechanical and chemical properties. Because of zeolites separation properties, low cost, and robustness in industrial process, they are natural choice for use as industrial adsorbents. This is a multidisciplinary effort to research, design, develop, engineer, and test new and improved materials for the separation of branched vs. linear organic molecules found in commercially important HC streams via adsorption based separations. The focus of this project was the surface and framework modification of the commercially available zeolites, while tuning the adsorption properties and the selectivities of the bulk and membrane separations. In particular, we are interested with our partners at Goodyear Chemical, on how to apply the modified zeolites to feedstock isoprene purification. For the characterization and the property measurements of the new and improved materials powder X-ray diffraction (PXRD), Residual Gas Analyzer-Mass Spectroscopy (RGA-MS), Electron Microscopy (SEM/EDAX), temperature programmed desorption (TPD) and surface area techniques were utilized. In-situ carbonization of MFI zeolite membranes allowed for the maximum separation of isoprene from n-pentane, with a 4.1% enrichment of the binary stream with n-pentane. In four component streams, a modified MFI membrane had high selectivities for n-pentane and 1-3-pentadiene over isoprene but virtually no separation for the 2-methyl-2-butene/isoprene pair.

  4. Modified Yeast with Enhanced Tolerance for GVL Biomass Solvent - Energy

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

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  5. Modified Gauss-Bonnet theory as gravitational alternative for dark energy

    E-Print Network [OSTI]

    Shin'ichi Nojiri; Sergei D. Odintsov

    2005-10-06T23:59:59.000Z

    We suggest the modified gravity where some arbitrary function of Gauss-Bonnet (GB) term is added to Einstein action as gravitational dark energy. It is shown that such theory may pass solar system tests. It is demonstrated that modified GB gravity may describe the most interesting features of late-time cosmology: the transition from deceleration to acceleration, crossing the phantom divide, current acceleration with effective (cosmological constant, quintessence or phantom) equation of state of the universe.

  6. Energy Carrier Transport In Surface-Modified Carbon Nanotubes

    E-Print Network [OSTI]

    Ryu, Yeontack

    2012-11-30T23:59:59.000Z

    can be dramatically changed by the modification. This is ideal for developing high-performance materials for thermoelectric and photovoltaic energy conversion applications. In this research, decoration of various organic/inorganic nanomaterials...

  7. Modified epoxy coatings on mild steel: Tribology and surface energy Witold Brostow a,b

    E-Print Network [OSTI]

    North Texas, University of

    Modified epoxy coatings on mild steel: Tribology and surface energy Witold Brostow a,b , Madhuri 30, 30 ­ 059 Cracow, Poland a r t i c l e i n f o Article history: Received 19 December 2009 Received coatings Mild steel Dynamic friction Wear Surface energy a b s t r a c t A commercial epoxy diglycidylether

  8. Furanic Modified Amine-based Curatives - Energy Innovation Portal

    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,Dist.Newof EnergyFunding Opportunity from NOAA's OfficeIndustrial

  9. Modified Microbes Tolerate 50-Fold More Organic Acid - Energy Innovation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA /Ml'. William HirstLong-TermPossibilityModification

  10. Modified Yeast Ferments Biomass Xylose - Energy Innovation Portal

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

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

  11. 47TH ANNUAL CONFERENCE ON INFORMATION SCIENCES AND SYSTEMS, MARCH 2013 1 A Modified Bethe Free Energy Approximation for

    E-Print Network [OSTI]

    Regalia, Phillip A.

    to a modified Bethe free energy function. Applications to distributed coding in sensor networks are also of the side information diminishes. Index Terms--belief propagation, Bethe free energy, codeword quantization connection with a modified Bethe free energy approximation. We likewise illustrate its performance

  12. Dissipation of Modified Entropic Gravitational Energy Through Gravitational Waves

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2011-11-04T23:59:59.000Z

    The phenomenological nature of a new gravitational type interaction between two different bodies derived from Verlinde's entropic approach to gravitation in combination with Sorkin's definition of Universe's quantum information content, is investigated. Assuming that the energy stored in this entropic gravitational field is dissipated under the form of gravitational waves and that the Heisenberg principle holds for this system, one calculates a possible value for an absolute minimum time scale in nature $\\tau=15/16 \\frac{\\Lambda^{1/2}\\hbar G}{c^4}\\sim9.27\\times10^{-105}$ seconds, which is much smaller than the Planck time $t_{P}=(\\hbar G/c^5)^{1/2}\\sim 5.38\\times10^{-44}$ seconds. This appears together with an absolute possible maximum value for Newtonian gravitational forces generated by matter $F_g=32/30\\frac{c^7}{\\Lambda \\hbar G^2}\\sim 3.84\\times 10^{165}$ Newtons, which is much higher than the gravitational field between two Planck masses separated by the Planck length $F_{gP}=c^4/G\\sim1.21\\times10^{44}$ Newtons.

  13. Note on the Zero-Energy-Limit Solution for the Modified Gross-Pitaevskii Equation

    E-Print Network [OSTI]

    A. Kwang-Hua Chu

    2006-12-06T23:59:59.000Z

    The modified Gross-Pitaevskii equation was derived and solved to obtain the 1D solution in the zero-energy limit. This stationary solution could account for the dominated contributions due to the kinetic effect as well as the chemical potential in inhomogeneous Bose gases.

  14. Thermodynamical description of modified generalized Chaplygin gas model of dark energy

    E-Print Network [OSTI]

    H. Ebadi; H. Moradpour

    2015-04-15T23:59:59.000Z

    We consider a universe filled by a modified generalized Chaplygin gas together with a pressureless dark matter component. We get a thermodynamical interpretation for the modified generalized Chaplygin gas confined to the apparent horizon of FRW universe, whiles dark sectors do not interact with each other. Thereinafter, by taking into account a mutual interaction between the dark sectors of the cosmos, we find a thermodynamical interpretation for interacting modified generalized Chaplygin gas. Additionally, probable relation between the thermal fluctuations of the system and the assumed mutual interaction is investigated. Finally, we show that if one wants to solve the coincidence problem by using this mutual interaction, then the coupling constants of the interaction will be constrained. The corresponding constraint is also addressed. Moreover, the thermodynamic interpretation of using either a generalized Chaplygin gas or a Chaplygin gas to describe dark energy is also addressed throughout the paper.

  15. Multi-Factor Energy Price Models Exotic Derivatives Pricing

    E-Print Network [OSTI]

    Jaimungal, Sebastian

    Multi-Factor Energy Price Models and Exotic Derivatives Pricing by Samuel Hikspoors A thesis of Statistics University of Toronto c Copyright by Samuel Hikspoors 2008 #12;Multi-Factor Energy Price Models and practitioners alike recently started to develop the tools of energy derivatives pricing

  16. Improving biofuel feedstocks by modifying xylan biosynthesis (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

    SciTech Connect (OSTI)

    Lau, Jane [JBEI

    2013-03-01T23:59:59.000Z

    Jane Lau of the Joint BioEnergy Institute on "Improving biofuel feedstocks by modifying xylan biosynthesis" at the 8th Annual Genomics of Energy & Environment Meeting on March 28, 2013 in Walnut Creek, Calif.

  17. File:Construction SW NOI modified 7-18-2011.pdf | 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 are8COaBulkTransmissionSitingProcess.pdf Jump to: navigation,Size of this preview:File EditSW NOI modified

  18. Two-Factor Authentication | 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 Spin Transition in2,EHSS A-Zandof EnergyTwoTwo new

  19. IPCC Emission Factor Database | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | OpenHunan Runhua New Energy DevelopmentListIIFCIINTA Jump to:Emission

  20. Solvation Free Energy of Biomacromolecules: Parameters for a Modified Generalized Born Model Consistent with the AMBER Force Field

    E-Print Network [OSTI]

    Jayaram, Bhyravabotla

    Solvation Free Energy of Biomacromolecules: Parameters for a Modified Generalized Born Model provides rapid estimates of the electrostatic free energies of solvation for diverse molecules of parameters compatible with the AMBER force field is described. The method is used to estimate free energies

  1. Emission Factors (EMFAC) | Open Energy Information

    Open Energy Info (EERE)

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

  2. Surface modified CFx cathode material for ultrafast discharge and high energy density

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

    Dai, Yang [Shanghai Inst. of Space Power Sources, Shanghai (China); Zhu, Yimei [Brookhaven National Lab. (BNL), Upton, NY (United States); Cai, Sendan [Shanghai Inst. of Space Power Sources, Shanghai (China); Wu, Lijun [Brookhaven National Lab. (BNL), Upton, NY (United States); Yang, Weijing [Shanghai Inst. of Space Power Sources, Shanghai (China); Xie, Jingying [Shanghai Inst. of Space Power Sources, Shanghai (China); Shanghai Engineering Center for Power and Energy Storage Systems, Shanghai (China); Wen, Wen [BL14B1 Shanghai Synchrotron Radiation Facility, Shanghai (China); Zheng, Jin-Cheng [Xiamen Univ., Xiamen (China); Zheng, Yi [Shanghai Inst. of Space Power Sources, Shanghai (China)

    2014-01-01T23:59:59.000Z

    Li/CFx primary possesses the highest energy density of 2180 W h kg?¹ among all primary lithium batteries. However, a key limitation for the utility of this type of battery is in its poor rate capability because the cathode material, CFx, is an intrinsically poor electronic conductor. Here, we report on our development of a controlled process of surface de-fluorination under mild hydrothermal conditions to modify the highly fluorinated CFx. The modified CFx, consisting of an in situ generated shell component of F-graphene layers, possesses good electronic conductivity and removes the transporting barrier for lithium ions, yielding a high-capacity performance and an excellent rate-capability. Indeed, a capacity of 500 mA h g?¹ and a maximum power density of 44 800 W kg?¹ can be realized at the ultrafast rate of 30 C (24 A g?¹), which is over one order of magnitude higher than that of the state-of-the-art primary lithium-ion batteries.

  3. Surface modified CFx cathode material for ultrafast discharge and high energy density

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

    Dai, Yang; Zhu, Yimei; Cai, Sendan; Wu, Lijun; Yang, Weijing; Xie, Jingying; Wen, Wen; Zheng, Jin-Cheng; Zheng, Yi

    2014-01-01T23:59:59.000Z

    Li/CFx primary possesses the highest energy density of 2180 W h kg?¹ among all primary lithium batteries. However, a key limitation for the utility of this type of battery is in its poor rate capability because the cathode material, CFx, is an intrinsically poor electronic conductor. Here, we report on our development of a controlled process of surface de-fluorination under mild hydrothermal conditions to modify the highly fluorinated CFx. The modified CFx, consisting of an in situ generated shell component of F-graphene layers, possesses good electronic conductivity and removes the transporting barrier for lithium ions, yielding a high-capacity performance andmore »an excellent rate-capability. Indeed, a capacity of 500 mA h g?¹ and a maximum power density of 44 800 W kg?¹ can be realized at the ultrafast rate of 30 C (24 A g?¹), which is over one order of magnitude higher than that of the state-of-the-art primary lithium-ion batteries.« less

  4. Model-independent constraints on dark energy and modified gravity with the SKA

    E-Print Network [OSTI]

    Zhao, Gong-Bo; Maartens, Roy; Santos, Mario; Raccanelli, Alvise

    2015-01-01T23:59:59.000Z

    Employing a nonparametric approach of the principal component analysis (PCA), we forecast the future constraint on the equation of state $w(z)$ of dark energy, and on the effective Newton constant $\\mu(k,z)$, which parameterise the effect of modified gravity, using the planned SKA HI galaxy survey. Combining with the simulated data of Planck and Dark Energy Survey (DES), we find that SKA Phase 1 (SKA1) and SKA Phase 2 (SKA2) can well constrain $3$ and $5$ eigenmodes of $w(z)$ respectively. The errors of the best measured modes can be reduced to 0.04 and 0.023 for SKA1 and SKA2 respectively, making it possible to probe dark energy dynamics. On the other hand, SKA1 and SKA2 can constrain $7$ and $20$ eigenmodes of $\\mu(k,z)$ respectively within 10\\% sensitivity level. Furthermore, 2 and 7 modes can be constrained within sub percent level using SKA1 and SKA2 respectively. This is a significant improvement compared to the combined datasets without SKA.

  5. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    0 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2010 Report describes the 2010 edition of energy price indices and discount factors for performing...

  6. Establishing Standard Source Energy and Emission Factors for Energy Use in Buildings

    SciTech Connect (OSTI)

    Deru, M.

    2007-01-01T23:59:59.000Z

    This procedure provides source energy factors and emission factors to calculate the source (primary) energy and emissions from a building's annual site energy consumption. This report provides the energy and emission factors to calculate the source energy and emissions for electricity and fuels delivered to a facility and combustion of fuels at a facility. The factors for electricity are broken down by fuel type and presented for the continental United States, three grid interconnections, and each state. The electricity fuel and emission factors are adjusted for the electricity and the useful thermal output generated by combined heat and power (CHP) plants larger than one megawatt. The energy and emissions from extracting, processing, and transporting the fuels, also known as the precombustion effects, are included.

  7. Modified Friedmann model in Randers-Finsler space of approximate Berwald type as a possible alternative to dark energy hypothesis

    E-Print Network [OSTI]

    Chang, Zhe

    2009-01-01T23:59:59.000Z

    Gravitational field equations in Randers-Finsler space of approximate Berwald type are investigated. A modified Friedmann model is proposed. It is showed that the accelerated expanding universe is guaranteed by a constrained Randers-Finsler structure without invoking dark energy. The geodesic in Randers-Finsler space is studied. The additional term in the geodesic equation acts as repulsive force against the gravity.

  8. Modified Friedmann model in Randers-Finsler space of approximate Berwald type as a possible alternative to dark energy hypothesis

    E-Print Network [OSTI]

    Zhe Chang; Xin Li

    2009-01-08T23:59:59.000Z

    Gravitational field equations in Randers-Finsler space of approximate Berwald type are investigated. A modified Friedmann model is proposed. It is showed that the accelerated expanding universe is guaranteed by a constrained Randers-Finsler structure without invoking dark energy. The geodesic in Randers-Finsler space is studied. The additional term in the geodesic equation acts as repulsive force against the gravity.

  9. First Climate formerly Factor Consulting | 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 are8COaBulkTransmissionSitingProcess.pdf Jump to:ar-80m.pdfFillmore County, Minnesota:Island,Factor Consulting Jump to:

  10. Amplitudes for High Energy Factorization via BCFW recursion

    E-Print Network [OSTI]

    Serino, Mirko

    2015-01-01T23:59:59.000Z

    Recently, an extension of the BCFW on-shell recursion relation suitable to compute gauge invariant scattering amplitudes with off-shell particles has been presented for Yang-Mills theories with fermions. In particular, 4- and 5-point amplitudes have been completely worked out. The results are needed for the study of multi-parton scattering at hadron colliders in the framework of High Energy Factorization (HEF).

  11. Experimental investigation of energy dissipation behavior of the modified friction device

    E-Print Network [OSTI]

    Zahner, Robert Marne

    2011-01-01T23:59:59.000Z

    As building materials become stronger, dynamic design and structural control are effective means of improving serviceability in the future's ever lighter structures. The recently proposed modified friction device (MFD) ...

  12. An analysis of modified convective available potential energy and Richardson number in mid-latitude squall line environments

    E-Print Network [OSTI]

    Stricherz, James Nicholas

    1989-01-01T23:59:59.000Z

    modified convective available potential energy (MCAPE) and Richardson number (MRI) were computed for each upper air sounding in a synoptic ? scale data network. The resulting fields were contoured and compared to the development, growth and decay of mid... ? latitude squall lines in several cases studies. The results indicate that, though the squall lines remained in the vicinity of MCAPE maxima and MRI minima there was no quantitative association. The squall lines also appeared to avoid these regions...

  13. Off-shell helicity amplitudes in high-energy factorization

    E-Print Network [OSTI]

    Piotr Kotko

    2013-09-20T23:59:59.000Z

    In the Catani-Ciafaloni-Hautmann high-energy factorization approach a cross section is expressed as a convolution of unintegrated gluon densities and a gauge-invariant hard process, in which two incoming gluons are off-shell with momenta satisfying certain high-energy kinematics. We present two methods of evaluating the tree-level hard process with multiple final states. The first one assumes that only one of the gluons is off-shell and relies on the Slavnov-Taylor identities. Such asymmetric configuration of incoming gluons is phenomenologically important in small x probing by forward processes. The second method deals also with two off-shell gluons and is based on the analytic continuation of the off-shell gluons momenta to the complex space. The methods were implemented into Monte Carlo computer programs and used in phenomenological applications. The results of both methods are straightforwardly related to Lipatov's effective vertices in quasi-multi-regge kinematics.

  14. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis-2014 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis-2014 Handbook describes the...

  15. Evaluation of a modified quadruple energy window scatter subtraction algorithm for quantitative imaging with In-111 

    E-Print Network [OSTI]

    Sadler,John J.

    2000-01-01T23:59:59.000Z

    spatial resolution broadens the curve by giving false indication of where individual counts register. Another effect of having the dual-energy gamma rays &om In-111 in particular is that Compton scatter from the higher energy 246 keV gamma.... Attenuation and Scatter Correction with the Quadruple Energy Window Scatter Subtraction Method 1. 10. 1. The Original Quadruple Energy Window Scatter Subtraction Algorithm Scatter subtraction methods based on a dual-energy window image acquisition scheme...

  16. Using Hessian update formulae to construct modified Shepard interpolated potential energy surfaces: Application to vibrating surface atoms

    SciTech Connect (OSTI)

    Frankcombe, Terry J., E-mail: tjf@rsc.anu.edu.au [Research School of Chemistry, Australian National University, ACT 0200 (Australia)

    2014-03-21T23:59:59.000Z

    Modified Shepard interpolation based on second order Taylor series expansions has proven to be a flexible tool for constructing potential energy surfaces in a range of situations. Extending this to gas–surface dynamics where surface atoms are allowed to move represents a substantial increase in the dimensionality of the problem, reflected in a dramatic increase in the computational cost of the required Hessian (matrix of second derivatives) evaluations. This work demonstrates that using approximate Hessians derived from well known Hessian update formulae and a single accurate Hessian can provide an effective way to avoid this expensive accurate Hessian determination.

  17. Modified Hotspot Cache Architecture: A Low Energy Fast Cache for Embedded Processors

    E-Print Network [OSTI]

    Aboelaze, Mokhtar

    consumption of the processor, however the energy consumption in the on-chip cache account to almost 40% of the total energy consumption of the processor. In this paper, we propose a cache architecture cache. Our design has both a faster access time and less energy consumption compared to both the filter

  18. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    2 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2012 Report provides tables of present-value factors for use in the life-cycle cost analysis of capital...

  19. How effective is new variable modified Chaplygin gas to play the role of dark energy- A dynamical system analysis in RS II Brane model

    E-Print Network [OSTI]

    Prabir Rudra; Chayan Ranjit; Sujata Kundu

    2013-03-19T23:59:59.000Z

    Motivated by some previous works of Rudra et al we set to explore the background dynamics when dark energy in the form of New Variable Modified Chaplygin gas is coupled to dark matter with a suitable interaction in the universe described by brane cosmology. The main idea is to find out the efficiency of New variable modified Chaplygin gas to play the role of DE. As a result we resort to the technique of comparison with standard dark energy models. Here the RSII brane model have been considered as the gravity theory. An interacting model is considered in order to search for a possible solution of the cosmic coincidence problem. A dynamical system analysis is performed because of the high complexity of the system . The statefinder parameters are also calculated to classify the dark energy model. Graphs and phase diagrams are drawn to study the variations of these parameters and get an insight into the effectiveness of the dark energy model. It is also seen that the background dynamics of New Variable Modified Chaplygin gas is consistent with the late cosmic acceleration. After performing an extensive mathematical analysis, we are able to constrain the parameters of new variable modified Chaplygin gas as $mNew Variable Modified Chaplygin gas is not as effective as other Chaplygin gas models to play the role of dark energy.

  20. File:Modify App Geothermal 06-2012 (1).pdf | 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 are8COaBulkTransmissionSitingProcess.pdf Jump to: navigation,SizeEthiopiametstak.pdfMFSA06-2012 (1).pdf Jump to:

  1. Polyaniline modified graphene and carbon nanotube composite electrode for asymmetric supercapacitors of high energy density

    E-Print Network [OSTI]

    Qin, Lu-Chang

    electron microscopy and transmission electron microscopy. The excellent performance of the assembled super- capacitors is also discussed and it is attributed to (i) effective utilization of the large surface area vehicles (HEV), there have been increasing demands of high-performance energy storage devices. Super

  2. Universal geometrical factor of protein conformations as a consequence of energy

    E-Print Network [OSTI]

    the EPL website to read the latest articles published in cutting-edge fields of research from acrossOFFPRINT Universal geometrical factor of protein conformations as a consequence of energy of the referees to making all final acceptance decisions Impact Factor ­ The 2010 Impact Factor is 2.753; your

  3. Energy oscillations and a possible route to chaos in a modified Riga dynamo

    E-Print Network [OSTI]

    Stefani, Frank; Gerbeth, Gunter

    2010-01-01T23:59:59.000Z

    Starting from the present version of the Riga dynamo experiment with its rotating magnetic eigenfield dominated by a single frequency we ask for those modifications of this set-up that would allow for a non-trivial magnetic field behaviour in the saturation regime. Assuming an increased ratio of azimuthal to axial flow velocity, we obtain energy oscillations with a frequency below the eigenfrequency of the magnetic field. These new oscillations are identified as magneto-inertial waves that result from a slight imbalance of Lorentz and inertial forces. Increasing the azimuthal velocity further, or increasing the total magnetic Reynolds number, we find transitions to a chaotic behaviour of the dynamo.

  4. Time and Energy Efficient Matrix Factorization using FPGAs

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    algorithmic techniques that use a block based approach to obtain time and energy efficient designs in FPGAs

  5. Appraisal of the M factor and the role of building thermal mass in energy conservation

    SciTech Connect (OSTI)

    Childs, K.W.

    1980-07-01T23:59:59.000Z

    A new concept in heat transfer calculations known as the M factor has been introduced to account for thermal storage due to mass in building walls. This report reviews the assumptions behind the development of the M factor. The effect of mass in walls on seasonal or annual energy transmission through walls is examined, as well as the applicability of the M factor as a correction to account for any mass effects. In connection with the effect of mass on seasonal energy consumption, the use of a M factor correction when checking a building for compliance with energy conservation standards such as ASHRAE Standard 90-75 is investigated. The suitability of applying the M factor correction to the peak load determined by a steady-state calculation for equipment sizing is also explored. In addition, the relationship of thermal mass to other parameters that determine loads and energy consumption is investigated, and the role of thermal mass in energy conservation is discussed.

  6. Binding of transcription factors adapts to resolve information-energy trade-off

    E-Print Network [OSTI]

    Kagan, Yonatan Savir Jacob

    2015-01-01T23:59:59.000Z

    We examine the binding of transcription factors to DNA in terms of an information transfer problem. The input of the noisy channel is the biophysical signal of a factor bound to a DNA site, and the output is a distribution of probable DNA sequences at this site. This task involves an inherent tradeoff between the information gain and the energetics of the binding interaction - high binding energies provide higher information gain but hinder the dynamics of the system as factors are bound too tightly. We show that adaptation of the binding interaction towards increasing information transfer under energy constraints implies that the information gain per specific binding energy at each base-pair is maximized. We analyze hundreds of prokaryote and eukaryote transcription factors from various organisms to evaluate the discrimination energies. We find that, in accordance with our theoretical argument, binding energies nearly maximize the information gain per energy. This work suggests the adaptation of information ...

  7. Wormholes in viable $f(R)$ modified theories of gravity and Weak Energy Condition

    E-Print Network [OSTI]

    Petar Pavlovi?; Marko Sossich

    2015-02-19T23:59:59.000Z

    In this work wormholes in viable $f(R)$ gravity models are analysed. We are interested in exact solutions for stress-energy tensor components depending on different shape and redshift functions. Several solutions of gravitational equations for different $f(R)$ models are examined. Found solutions imply no need for exotic material, while this need is implied in the standard general theory of relativity. Simple expression for WEC violation near the throat is derived and analysed. High curvature regime is also discussed, as well as the question of the highest possible values of Ricci scalar for which WEC is not violated near the throat, and corresponding functions are calculated for the several models. The approach here differs from the one that has been common since no additional assumptions to simplify the equations are made, and functions in $f(R)$ models are not taken to be arbitrary functions, but rather a feature of the theory that has to be evaluated on the basis of consistency with observations for the Solar System and cosmological evolution.

  8. Analytic spectrum of relic gravitational waves modified by neutrino free streaming and dark energy

    SciTech Connect (OSTI)

    Miao, H. X.; Zhang, Y. [Astrophysics Center, University of Science and Technology of China, Hefei, Anhui (China)

    2007-05-15T23:59:59.000Z

    We include the effect of neutrino free streaming into the spectrum of relic gravitational waves (RGWs) in the currently accelerating universe. For the realistic case of a varying fractional neutrino energy density and a nonvanishing derivative of the mode function at the neutrino decoupling, the integro-differential equation of RGWs is solved by a perturbation method for the period from the neutrino decoupling to the matter-dominant stage. Incorporating it into the analytic solution of RGWs for the whole history of expansion of the universe, the analytic solution of RGWs is obtained, evolving from inflation up to the current acceleration. The resulting spectrum of RGWs covers the whole range of frequency (10{sup -19}-10{sup 10}) Hz and improves the previous results. It is found that neutrino free streaming causes a reduction of the spectral amplitude by {approx}20% in the range (10{sup -16}-10{sup -10}) Hz, and leaves the other portion of the spectrum almost unchanged. This agrees with the earlier numerical calculations. Examination is made on the difference between the accelerating and nonaccelerating models, and our analysis shows that the ratio of the spectral amplitude in the accelerating {lambda}CDM model over that in the CDM model is {approx}0.7, and within the various accelerating models of {omega}{sub {lambda}}>{omega}{sub m} the spectral amplitude is proportional to {omega}{sub m}/{omega}{sub {lambda}} for the whole range of frequency. Comparison with LIGO S5 run sensitivity shows that RGWs are not yet detectable by the present LIGO, and in the future LISA may be able to detect RGWs in some inflationary models.

  9. Two-Factor Identify Proofing Process | 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 Spin Transition in2,EHSS A-Zandof EnergyTwoTwo newIdentify Proofing

  10. The Modified Dirac Equation

    E-Print Network [OSTI]

    Burra G. Sidharth

    2009-11-10T23:59:59.000Z

    We consider the behavior of the particles at ultra relativistic energies, for both the Klein-Gordon and Dirac equations. We observe that the usual description is valid for energies such that we are outside the particle's Compton wavelength. For higher energies however, both the Klein-Gordon and Dirac equations get modified and this leads to some new effects for the particles, including the appearance of anti particles with a slightly different energy.

  11. LEDSGP/DIA-Toolkit/Factors | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMALTexas:KujuBiographysource History View

  12. Module: Emission Factors for Deforestation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose BendMiasole IncMinuteman WindMoana(Tempel, EtModestoActivity

  13. EPA - Rainfall Erosivity Factor Calculator webpage | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE FacilityDimondale,South, NewDyer County,ECO2Ltd Place:Notice| Open

  14. EPA Rainfall Erosivity Factor Calculator Website | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE FacilityDimondale,South, NewDyer County,ECO2LtdLegalClassRainfall Erosivity

  15. Property:Geothermal/LoadFactor | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska:PrecourtOid Jump to:DocketFlowGpm Jump to: navigation,

  16. Handbook of Emission Factors for Road Transport (HBEFA) | Open Energy

    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 AGeothermal/ExplorationGoodsGuangzhou,GuizhouGuyana:HaeHalcyonHan

  17. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    Life-Cycle Cost Analysis - 2015 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2015 Handbook describes the annual supplements to the NIST Handbook 135 and...

  18. Energy Price Indices and Discount Factors for Life-Cycle Cost...

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

    NISTIR 85-3273-29 Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis - 2014 Annual Supplement to NIST Handbook 135 Amy S. Rushing Joshua D. Kneifel Priya...

  19. Dynamic Simulation and Analysis of Factors Impacting the Energy Consumption of Residential Buildings

    E-Print Network [OSTI]

    Lian, Y.; Hao, Y.

    2006-01-01T23:59:59.000Z

    Buildings have a close relationship with climate. There are a lot of important factors that influence building energy consumption such as building shape coefficient, insulation work of building envelope, covered area, and the area ratio of window...

  20. Dynamic Simulation and Analysis of Factors Impacting the Energy Consumption of Residential Buildings 

    E-Print Network [OSTI]

    Lian, Y.; Hao, Y.

    2006-01-01T23:59:59.000Z

    Buildings have a close relationship with climate. There are a lot of important factors that influence building energy consumption such as building shape coefficient, insulation work of building envelope, covered area, and the area ratio of window...

  1. Energy Policy 34 (2006) 32183232 Beyond the learning curve: factors influencing cost reductions

    E-Print Network [OSTI]

    Kammen, Daniel M.

    2006-01-01T23:59:59.000Z

    in photovoltaics Gregory F. Nemetà Energy and Resources Group, University of California, 310 Barrows Hall 3050 changed more dramatically than photovoltaics (PV), the cost of which has declined by a factor of nearly in the most impor- tant factors--plant size, module efficiency, and the cost of silicon. Ways in which

  2. Overview of Existing Literature On Diversity Factors and Schedules for Energy and Cooling Load Calculations

    E-Print Network [OSTI]

    Abushakra, B.; Haberl, J.S.; Claridge, D.E

    used in simulation. The goal of ASHRAE 1093-RP was to compile a library of schedules and diversity factors based on measured electricity consumption data for use in energy simulations and peak cooling load calculations in office buildings... consumption data for commercial buildings. The literature on diversity factors and load shapes was examined with particular attention to the descriptions of methods used, references to existing databases of monitored whole-building energy use and end...

  3. Novel Modified Optical Fibers for High Temperature In-Situ Miniaturized Gas Sensors in Advanced Fossil Energy Systems

    SciTech Connect (OSTI)

    Pickrell, Gary; Scott, Brian

    2014-06-30T23:59:59.000Z

    This report covers the technical progress on the program “Novel Modified Optical Fibers for High Temperature In-Situ Miniaturized Gas Sensors in Advanced Fossil Energy Systems”, funded by the National Energy Technology Laboratory of the U.S. Department of Energy, and performed by the Materials Science & Engineering and Electrical & Computer Engineering Departments at Virginia Tech, and summarizes technical progress from July 1st, 2005 –June 30th, 2014. The objective of this program was to develop novel fiber materials for high temperature gas sensors based on evanescent wave absorption in optical fibers. This project focused on two primary areas: the study of a sapphire photonic crystal fiber (SPCF) for operation at high temperature and long wavelengths, and a porous glass based fiber optic sensor for gas detection. The sapphire component of the project focused on the development of a sapphire photonic crystal fiber, modeling of the new structures, fabrication of the optimal structure, development of a long wavelength interrogation system, testing of the optical properties, and gas and temperature testing of the final sensor. The fabrication of the 6 rod SPCF gap bundle (diameter of 70?m) with a hollow core was successfully constructed with lead-in and lead-out 50?m diameter fiber along with transmission and gas detection testing. Testing of the sapphire photonic crystal fiber sensor capabilities with the developed long wavelength optical system showed the ability to detect CO2 at or below 1000ppm at temperatures up to 1000°C. Work on the porous glass sensor focused on the development of a porous clad solid core optical fiber, a hollow core waveguide, gas detection capabilities at room and high temperature, simultaneous gas species detection, suitable joining technologies for the lead-in and lead-out fibers and the porous sensor, sensor system sensitivity improvement, signal processing improvement, relationship between pore structure and fiber geometry to optical properties, and the development of a sensor packaging prototype for laboratory testing. Analysis and experiments determined that a bonding technique using a CO2 laser is the most suitable joining technique. Pore morphology alteration showed that transmission improved with increasing annealing temperature (producing smaller pores), while the sensor response time increased and the mechanical strength decreased with increasing annealing temperature. Software was developed for data acquisition and signal processing to collect and interpret spectral gas absorption data. Gas detection on porous glass sensors was completed and the detection limit was evaluated using acetylene and was found to be around 1- 200ppm. A complete materials package for porous glass sensors was manufactured for testing.

  4. Human Factors Engineering Analysis Tool - Energy Innovation Portal

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

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

  5. Evaluation of the energy states of hydrogen atom using Schroedinger equation with a Coulomb potential modified by the interaction between the magnetic moments of the proton and electron

    E-Print Network [OSTI]

    Voicu Dolocan

    2014-04-06T23:59:59.000Z

    In this paper we have performed the calculus of the energy states of hydrogen atom by using the Schroedinger equation with a Coulomb potential which is modified by the interaction between the magnetic moments of the proton and the electron, respectively. The important result is that the Lamb shift appears as a natural result of the solution of Schroedinger equation. The obtained results are in a good agreement with experimental data.

  6. Neutron dose per fluence and weighting factors for use at high energy accelerators

    SciTech Connect (OSTI)

    Cossairt, J.Donald; Vaziri, Kamran; /Fermilab

    2008-07-01T23:59:59.000Z

    In June 2007, the United States Department of Energy incorporated revised values of neutron weighting factors into its occupational radiation protection Regulation 10 CFR Part 835 as part of updating its radiation dosimetry system. This has led to a reassessment of neutron radiation fields at high energy proton accelerators such as those at the Fermi National Accelerator Laboratory (Fermilab). Values of dose per fluence factors appropriate for accelerator radiation fields calculated elsewhere are collated and radiation weighting factors compared. The results of this revision to the dosimetric system are applied to americium-beryllium neutron energy spectra commonly used for instrument calibrations. A set of typical accelerator neutron energy spectra previously measured at Fermilab are reassessed in light of the new dosimetry system. The implications of this revision are found to be of moderate significance.

  7. Guidance Regarding Refinancing, Restructuring, or Modifying Loan...

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

    addresses potential refinancing, restructuring, or modifying of a loan agreement entered into by an energy services company under a federal energy savings performance contract....

  8. Guidance Regarding Refinancing, Restructuring, or Modifying ESPC...

    Office of Environmental Management (EM)

    or modifying of a loan agreement entered into by an energy services company (ESCO) under a Federal energy savings performance contract (ESPC). 14idiqrefinance.pdf More...

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

    E-Print Network [OSTI]

    C. Sivaram; Kenath Arun

    2010-08-31T23:59:59.000Z

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

  10. Quenching Factor for Low Energy Nuclear Recoils in a Plastic Scintillator

    E-Print Network [OSTI]

    L. Reichhart; D. Yu. Akimov; H. M. Araujo; E. J. Barnes; V. A. Belov; A. A. Burenkov; V. Chepel; A. Currie; L. DeViveiros; B. Edwards; V. Francis; C. Ghag; A. Hollingsworth; M. Horn; G. E. Kalmus; A. S. Kobyakin; A. G. Kovalenko; V. N. Lebedenko; A. Lindote; M. I. Lopes; R. Luscher; P. Majewski; A. St J. Murphy; F. Neves; S. M. Paling; J. Pinto da Cunha; R. Preece; J. J. Quenby; P. R. Scovell; C. Silva; V. N. Solovov; N. J. T. Smith; P. F. Smith; V. N. Stekhanov; T. J. Sumner; C. Thorne; R. J. Walker

    2011-11-09T23:59:59.000Z

    Plastic scintillators are widely used in industry, medicine and scientific research, including nuclear and particle physics. Although one of their most common applications is in neutron detection, experimental data on their response to low-energy nuclear recoils are scarce. Here, the relative scintillation efficiency for neutron-induced nuclear recoils in a polystyrene-based plastic scintillator (UPS-923A) is presented, exploring recoil energies between 125 keV and 850 keV. Monte Carlo simulations, incorporating light collection efficiency and energy resolution effects, are used to generate neutron scattering spectra which are matched to observed distributions of scintillation signals to parameterise the energy-dependent quenching factor. At energies above 300 keV the dependence is reasonably described using the semi-empirical formulation of Birks and a kB factor of (0.014+/-0.002) g/MeVcm^2 has been determined. Below that energy the measured quenching factor falls more steeply than predicted by the Birks formalism.

  11. The Astrophysical S-factor of the 12C(?,?)16O Reaction at Solar Energies

    E-Print Network [OSTI]

    H. Sadeghi; R. Ghasemi; H. Khalili

    2013-12-13T23:59:59.000Z

    The astrophysical S-factor of the 4He-12C radiative capture is calculated in the potential model at the energy range 0.1-2.0 MeV. Radiative capture 12C(\\alpha,\\gamma)16O is extremely relevant for the fate of massive stars and determines if the remnant of a supernova explosion becomes a black hole or a neutron star. Because this reaction occurs at low-energies the experimental measurements is very difficult and perhaps impossible. In this paper, radiative capture of the 12C(\\alpha,\\gamma)16O reaction at very low-energies is taken as a case study. In comparison with other theoretical methods and available experimental data, excellent agreement is achieved for the astrophysical S-factor of this process.

  12. Energy Guideline Factors Provide a Better Measure of Refinery Energy Performance

    E-Print Network [OSTI]

    Libbers, D. D.

    1980-01-01T23:59:59.000Z

    Exxon Company, U.S.A. refineries reduced energy consumption by 25% between 1972 and 1978 compared with an 18% reduction for the U.S. Petroleum Refining Industry over the same period. The Exxon approach to conserving energy in petroleum refining...

  13. Viscosity in modified gravity

    E-Print Network [OSTI]

    Iver Brevik

    2012-11-23T23:59:59.000Z

    A bulk viscosity is introduced in the formalism of modified gravity. It is shown that, on the basis of a natural scaling law for the viscosity, a simple solution can be found for quantities such as the Hubble parameter and the energy density. These solutions may incorporate a viscosity-induced Big Rip singularity. By introducing a phase transition in the cosmic fluid, the future singularity can nevertheless in principle be avoided.

  14. Reconstructing f(R) modified gravity from ordinary and entropy-corrected versions of the holographic and new agegraphic dark energy models

    E-Print Network [OSTI]

    K. Karami; M. S. Khaledian

    2011-03-13T23:59:59.000Z

    Here, we peruse cosmological usage of the most promising candidates of dark energy in the framework of f(R) theory. We reconstruct the different f(R) modified gravity models in the spatially flat FRW universe according to the ordinary and entropy-corrected versions of the holographic and new agegraphic dark energy models, which describe accelerated expansion of the universe. We also obtain the equation of state parameter of the corresponding f(R)-gravity models. We conclude that the holographic and new agegraphic f(R)-gravity models can behave like phantom or quintessence models. Whereas the equation of state parameter of the entropy-corrected models can transit from quintessence state to phantom regime as indicated by recent observations.

  15. Factors affecting the eversion of sorghum grain using microwave energy in the 2450-mc range

    E-Print Network [OSTI]

    Beerwinkle, Kenneth Ray

    1967-01-01T23:59:59.000Z

    for the degree of NASTER OF SCIENCE AUGUST 1967 Hajor Subject: Agricultural Engineering FACTORS AFFECTING THE EVERSION OF SORGHUM GRAIN USING MICROWAVE ENERGY IN THE 2450-MC RANGE A Thesis By KENNETH RAY BEERWINKCE Approved as to style and content by... OF FIGURES Figure Page Phasor Representation of Total Current, I, Trans- vezsing a Condenser. Parallel Equivalent Circuit of a Dielectric in a Condenser. Laboratory Microwave Test Equipment. A. Oven Appli- cator. B. Wave Guide. C. Directional Po. . er...

  16. Fermi energy dependence of linewidth enhancement factor of GaAlAs buried heterostructure lasers

    SciTech Connect (OSTI)

    Arakawa, Y.; Yariv, A.

    1985-11-01T23:59:59.000Z

    The linewidth enhancement factor ..cap alpha.. is measured in a number of GaAlAs lasers with different internal losses. It is found that ..cap alpha.. decreases monotonically with the increase of the loss (Fermi energy level) in agreement with the theoretical prediction. On the basis of these results the design of cavity length and mirror reflection in order to reduce the spectral linewidth of the laser output is discussed.

  17. Transportation Energy Futures Series: Effects of the Built Environment on Transportation: Energy Use, Greenhouse Gas Emissions, and Other Factors

    SciTech Connect (OSTI)

    Porter, C. D.; Brown, A.; Dunphy, R. T.; Vimmerstedt, L.

    2013-03-01T23:59:59.000Z

    Planning initiatives in many regions and communities aim to reduce transportation energy use, decrease emissions, and achieve related environmental benefits by changing land use. This report reviews and summarizes findings from existing literature on the relationship between the built environment and transportation energy use and greenhouse gas emissions, identifying results trends as well as potential future actions. The indirect influence of federal transportation and housing policies, as well as the direct impact of municipal regulation on land use are examined for their effect on transportation patterns and energy use. Special attention is given to the 'four D' factors of density, diversity, design and accessibility. The report concludes that policy-driven changes to the built environment could reduce transportation energy and GHG emissions from less than 1% to as much as 10% by 2050, the equivalent of 16%-18% of present-day urban light-duty-vehicle travel. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  18. On Modified Gravity

    E-Print Network [OSTI]

    Ivan Dimitrijevic; Branko Dragovich; Jelena Grujic; Zoran Rakic

    2012-04-09T23:59:59.000Z

    We consider some aspects of nonlocal modified gravity, where nonlocality is of the type $R \\mathcal{F}(\\Box) R$. In particular, using ansatz of the form $\\Box R = c R^\\gamma,$ we find a few $R(t)$ solutions for the spatially flat FLRW metric. There are singular and nonsingular bounce solutions. For late cosmic time, scalar curvature R(t) is in low regime and scale factor a(t) is decelerated. R (t) = 0 satisfies all equations when k = -1.

  19. A New Technique for Studying the Fano Factor And the Mean Energy Per Ion Pair in Counting Gases

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

    Panksky, A.; Breskin, A.; Chechik, R.

    1996-04-01T23:59:59.000Z

    A new method is presented for deriving the Fano factor and the mean energy per ion pair in the ultrasoft x-ray energy range. It is based on counting electrons deposited by a photon in a low-pressure gas, and is applicable for all counting gases. The energy dependence of these parameters for several hydrocarbons and gas mixtures is presented.

  20. The Energy Sensor AMP-activated Protein Kinase Directly Regulates the Mammalian FOXO3 Transcription Factor*S

    E-Print Network [OSTI]

    Brunet, Anne

    The Energy Sensor AMP-activated Protein Kinase Directly Regulates the Mammalian FOXO3 Transcription of homeostasis throughout an organism's life span requires constant adaptation to changes in energy lev- els. The AMP-activated protein kinase (AMPK) plays a critical role in the cellular responses to low energy

  1. Self-accelerated universe induced by repulsive effects as an alternative to dark energy and modified gravities

    E-Print Network [OSTI]

    Orlando Luongo; Hernando Quevedo

    2015-07-23T23:59:59.000Z

    The existence of current-time universe's acceleration is usually modeled by means of two main strategies. The first makes use of a dark energy barotropic fluid entering \\emph{by hand} the energy-momentum tensor of Einstein's theory. The second lies on extending the Hilbert-Einstein action giving rise to the class of extended theories of gravity. In this work, we propose a third approach, derived as an intrinsic geometrical effect of space-time, which provides repulsive regions under certain circumstances. We demonstrate that the effects of repulsive gravity naturally emerge in the field of a homogeneous and isotropic universe. To this end, we use an invariant definition of repulsive gravity based upon the behavior of the curvature eigenvalues. Moreover, we show that repulsive gravity counterbalances the standard gravitational attraction influencing both late and early times of the universe evolution. This phenomenon leads to the present speed up and to the fast expansion due to the inflationary epoch. In so doing, we are able to unify both dark energy and inflation in a single scheme, showing that the universe changes its dynamics when ${\\ddot H\\over H}=-2\\dot H$, at the repulsion onset time where this condition is satisfied. Further, we argue that the spatial scalar curvature can be taken as vanishing because it does not affect at all the emergence of repulsive gravity. We check the goodness of our approach through two cosmological fits involving the most recent union 2.1 supernova compilation.

  2. f(T) modified teleparallel gravity models as an alternative for holographic and new agegraphic dark energy models

    E-Print Network [OSTI]

    K. Karami; A. Abdolmaleki

    2011-08-18T23:59:59.000Z

    In the present work, we reconstruct different f(T)-gravity models corresponding to the original and entropy-corrected version of the holographic and new agegraphic dark energy models. We also obtain the equation of state parameters of the corresponding f(T)-gravity models. We conclude that the holographic and new agegraphic f(T)-gravity models behave like phantom or quintessence model. Whereas in the entropy-corrected models, the equation of state parameter can justify the transition from the quintessence state to the phantom regime as indicated by the recent observations.

  3. Self-accelerated universe induced by repulsive effects as an alternative to dark energy and modified gravities

    E-Print Network [OSTI]

    Luongo, Orlando

    2015-01-01T23:59:59.000Z

    The existence of current-time universe's acceleration is usually modeled by means of two main strategies. The first makes use of a dark energy barotropic fluid entering \\emph{by hand} the energy-momentum tensor of Einstein's theory. The second lies on extending the Hilbert-Einstein action giving rise to the class of extended theories of gravity. In this work, we propose a third approach, derived as an intrinsic geometrical effect of space-time, which provides repulsive regions under certain circumstances. We demonstrate that the effects of repulsive gravity naturally emerge in the field of a homogeneous and isotropic universe. To this end, we use an invariant definition of repulsive gravity based upon the behavior of the curvature eigenvalues. Moreover, we show that repulsive gravity counterbalances the standard gravitational attraction influencing both late and early times of the universe evolution. This phenomenon leads to the present speed up and to the fast expansion due to the inflationary epoch. In so d...

  4. Summary We investigated key factors controlling mass and energy exchange by a young (6-year-old) ponderosa pine

    E-Print Network [OSTI]

    Cohen, Ronald C.

    forest type in the western United States, occupying approximately 20% of unreserved forest area (Powell with tree size and age influence the ecosystem-scale energy balance, transpiration rates, and net carbon uptake. Our objective was to compare the factors con- trolling energy balance and net carbon uptake over

  5. Zero-point energy of vacuum fluctuation as a candidate for dark energy versus a new conjecture of antigravity based on the modified Einstein field equation in general relativity

    E-Print Network [OSTI]

    Guang-jiong Ni

    2005-06-02T23:59:59.000Z

    In order to clarify why the zero-point energy associated with the vacuum fluctuations cannot be a candidate for the dark energy in the universe, a comparison with the Casimir effect is analyzed in some detail. A principle of epistemology is stressed that it is meaningless to talk about an absolute (isolated) thing. A relative thing can only be observed when it is changing with respect to other things. Then a new conjecture of antigravity --the repulsive force between matter and antimatter derived from the modified Einstein field equation in general relativity-- is proposed. this is due to the particle-antiparticle symmetry based on a new understanding about the essence of special relativity. Its possible consequences in the theory of cosmology are discussed briefly, including a new explanation for the accelerating universe and gamma-ray-bursts.

  6. Guidance Regarding Refinancing, Restructuring, or Modifying ESPC Loan Agreements

    Broader source: Energy.gov [DOE]

    Document addresses potential refinancing, restructuring, or modifying of a loan agreement entered into by an energy services company (ESCO) under a Federal energy savings performance contract (ESPC).

  7. Compilation of Diversity Factors and Schedules for Energy and Cooling Load Calculations, ASHRAE Research Project 1093, Phase III Draft Report, Compilation of Diversity Factors and Load Shapes

    E-Print Network [OSTI]

    Abushakra, B.; Haberl, J. S.; Claridge, D. E.; Sreshthaputra, A.

    2000-01-01T23:59:59.000Z

    and diversity factors from: ? 27 Office Buildings monitored by ESL ? 9 Office Buildings provided by LBNL (Energy-Edge Buildings). If time allows we will process 28 additional buildings provided to us by PNNL. These additional buildings were monitored under... The Final set of the RP-1093 buildings. 7 Further Data from PNNL Mr. Todd Taylor, from PNNL, provided us with 28 ELCAP office buildings data. These ELCAP buildings are in Seattle (WA), Oregon, and Idaho, and were monitored by the Bonneville Power...

  8. Directed modified Cholesky factorizations and convex quadratic ...

    E-Print Network [OSTI]

    2014-07-03T23:59:59.000Z

    Jul 3, 2014 ... analysis, constraint satisfaction problems, bounding ellipsoids, interval hull, rounding .... 1 if Aii failure;.

  9. Universal geometrical factor of protein conformations as a consequence of energy minimization

    E-Print Network [OSTI]

    Wu, Ming-Chya; Ma, Wen-Jong; Kouza, Maksim; Hu, Chin-Kun; 10.1209/0295-5075/96/68005

    2012-01-01T23:59:59.000Z

    The biological activity and functional specificity of proteins depend on their native three-dimensional structures determined by inter- and intra-molecular interactions. In this paper, we investigate the geometrical factor of protein conformation as a consequence of energy minimization in protein folding. Folding simulations of 10 polypeptides with chain length ranging from 183 to 548 residues manifest that the dimensionless ratio (V/(A)) of the van der Waals volume V to the surface area A and average atomic radius of the folded structures, calculated with atomic radii setting used in SMMP [Eisenmenger F., et. al., Comput. Phys. Commun., 138 (2001) 192], approach 0.49 quickly during the course of energy minimization. A large scale analysis of protein structures show that the ratio for real and well-designed proteins is universal and equal to 0.491\\pm0.005. The fractional composition of hydrophobic and hydrophilic residues does not affect the ratio substantially. The ratio also holds for intrinsically disorde...

  10. Energy Factors, Leasing Structure and the Market Price of Office Buildings in the U.S.

    E-Print Network [OSTI]

    Jaffee, Dwight; Stanton, Richard; Wallace, Nancy

    2012-01-01T23:59:59.000Z

    requirements in building codes, energy efficiency policiesto improve the building’s energy efficiency. Lease contractsimprove the building’s energy efficiency. We focus first on

  11. Energy Factors, Leasing Structure and the Market Price of Office Buildings in the U.S.

    E-Print Network [OSTI]

    Jaffee, Dwight; Stanton, Richard; Wallace, Nancy

    2012-01-01T23:59:59.000Z

    the link between the energy risk exposure of a building andreal estate mortgages. Energy risk pricing technology foroffice buildings and their energy risk characteristics. The

  12. Energy Factors, Leasing Structure and the Market Price of Office Buildings in the U.S.

    E-Print Network [OSTI]

    Jaffee, Dwight M.; Stanton, Richard; Wallace, Nancy E.

    2010-01-01T23:59:59.000Z

    the link between the energy risk exposure of a building andreal estate mortgages. Energy risk pricing technology foro?ce buildings and their energy risk characteristics. The

  13. LORENTZ-FACTOR-ISOTROPIC-LUMINOSITY/ENERGY CORRELATIONS OF GAMMA-RAY BURSTS AND THEIR INTERPRETATION

    SciTech Connect (OSTI)

    Lue Jing; Zou Yuanchuan; Lei Weihua; Wu Qingwen; Wang Dingxiong [School of Physics, Huazhong University of Science and Technology, Wuhan 430074 (China); Zhang Bing; Lue Houjun [Department of Physics and Astronomy, University of Nevada Las Vegas, 4505 Maryland Parkway, Box 454002, Las Vegas, NV 89154-4002 (United States); Liang Enwei, E-mail: zouyc@hust.edu.cn, E-mail: leiwh@hust.edu.cn, E-mail: zhang@physics.unlv.edu [Department of Physics, Guangxi University, Nanning 530004 (China)

    2012-05-20T23:59:59.000Z

    The bulk Lorentz factor of the gamma-ray burst (GRB) ejecta ({Gamma}{sub 0}) is a key parameter to understanding GRB physics. Liang et al. have discovered a correlation between {Gamma}{sub 0} and isotropic {gamma}-ray energy: {Gamma}{sub 0}{proportional_to}E{sup 0.25}{sub {gamma},iso,52}. By including more GRBs with updated data and more methods to derive {Gamma}{sub 0}, we confirm this correlation and obtain {Gamma}{sub 0} {approx_equal} 91E{sup 0.29}{sub {gamma},iso,52}. Evaluating the mean isotropic {gamma}-ray luminosities L{sub {gamma},iso} of the GRBs in the same sample, we discover an even tighter correlation {Gamma}{sub 0} {approx_equal} 249L{sup 0.30}{sub {gamma},iso,52}. We propose an interpretation to this later correlation. Invoking a neutrino-cooled hyperaccretion disk around a stellar mass black hole as the central engine of GRBs, we derive jet luminosity powered by neutrino annihilation and baryon loading from a neutrino-driven wind. Applying beaming correction, we finally derive {Gamma}{sub 0}{proportional_to}L{sup 0.22}{sub {gamma},iso}, which is consistent with the data. This suggests that the central engine of long GRBs is likely a stellar mass black hole surrounded by a hyper-accreting disk.

  14. Test particle motion in modified gravity theories

    E-Print Network [OSTI]

    Mahmood Roshan

    2013-02-05T23:59:59.000Z

    We derive the equations of motion of an electrically neutral test particle for modified gravity theories in which the covariant divergence of the ordinary matter energy-momentum tensor dose not vanish (i.e. $\

  15. The Astrophysical S-factor of the 12C(\\alpha,\\gamma)16O Reaction at Solar Energies

    E-Print Network [OSTI]

    Sadeghi, H; Khalili, H

    2013-01-01T23:59:59.000Z

    The astrophysical S-factor of the 4He-12C radiative capture is calculated in the potential model at the energy range 0.1-2.0 MeV. Radiative capture 12C(\\alpha,\\gamma)16O is extremely relevant for the fate of massive stars and determines if the remnant of a supernova explosion becomes a black hole or a neutron star. Because this reaction occurs at low-energies the experimental measurements is very difficult and perhaps impossible. In this paper, radiative capture of the 12C(\\alpha,\\gamma)16O reaction at very low-energies is taken as a case study. In comparison with other theoretical methods and available experimental data, excellent agreement is achieved for the astrophysical S-factor of this process.

  16. SUMMARY OF 2009 RHEOLOGY MODIFIER PROGRAM

    SciTech Connect (OSTI)

    Hansen, E.

    2009-12-08T23:59:59.000Z

    The overall objective of the EM-31 Rheological Modifiers and Wetting Agents program is to utilize commercially available rheology modifiers to increase the solids fraction of radioactive sludge based waste streams, resulting in an increase in throughput and decreasing the overall processing time. The program first investigates the impact of rheology modifiers on slurry simulants and then utilizes the most effective rheology modifiers on radioactive slurries. The work presented in this document covers the initial investigation of rheology modifier testing with simulants. This task is supported by both the Savannah River National Laboratory (SRNL) and Pacific Northwest National Laboratory (PNNL). The SRNL EM-31 task, for this year, was to investigate the use of rheology modifiers on simulant Defense Waste Processing Facility (DWPF) melter feeds. The task is to determine, based on the impact of the rheology modifier, if there are rheology modifiers that could reduce the water content of the slurry going to the DWPF melter, hence increasing the melt rate by decreasing the water loading. The rheology modifier in essence would allow a higher solids content slurry to have the same type of rheology or pumpability of a lower solids slurry. The modifiers selected in this report were determined based on previous modifiers used in high level waste melter feed simulants, on-going testing performed by counterparts at PNNL, and experiences gain through use of modifiers in other Department of Energy (DOE) processes such as grout processing. There were 12 rheology modifiers selected for testing, covering both organic and inorganic types and they were tested at four different concentrations for a given melter feed. Five different DWPF melter feeds were available and there was adequate material in one of the melter feeds to increase the solids concentration, resulting in a total of six simulants for testing. The mass of melter feed available in each simulant was not adequate for testing each rheology modifier, hence based on the changes in rheology for a given rheology modifier, rheology modifiers were either dropped or added between simulants. Three rheology modifiers were used on all simulants. The results from this testing indicate that citric acid or polycarboxylate based rheology modifiers are the most effective in reducing the yield stress, by as much as 70% at the higher rheology modifier additions and were effective on most of the tested simulants. These rheology modifiers are organic, hence the can also be used as reductants in melter operations. The most effective non-organic rheology modifiers, sodium metasilicate reduced the yield stress by 10%. It is recommended that both citric acid and commercially available polycarboxylate rheology modifiers be further investigated. Different molecular weight polycarboxylates and different types of polycarboxylates used in other industries must be considered. These polycarboxylates are extensively utilized in the cement, ceramic, and water treatment processes, hence readily available. Future work on DWPF melter feeds involving rheology modifiers should include, assuming the present method of processing sludge through DPWF does not change, is: (1) Investigate the use of polycarboxylate in various processes and procure polycarboxylates for testing. Limit rheology modifier selection and future testing between four and eight different types. (2) Test rheology modifiers on at least two different chemical types or bounding DWPF SME product simulants. Test to include the impact of boiling and the effectiveness in reducing water content via rheology versus weight percent curves. (3) Based on selected modifiers, perform testing on actual radioactive melter feed based on results from simulant testing.

  17. revision:19970323 modified:19970323

    E-Print Network [OSTI]

    Shelah, Saharon

    596 revision:1997­03­23 modified:1997­03­23 Some independence results on reflection James Cummings. Publication number 596. 1 #12; 596 revision:1997­03­23 modified:1997­03­23 Baumgartner proved in [1­reflection principle captures 2 #12; 596 revision:1997­03­23 modified:1997­03­23 exactly that part of # which is useful

  18. Factors affecting the availability of wood energy from nonindustrial private forest lands in the Northeast. Forest Service Resource Bulletin (Final)

    SciTech Connect (OSTI)

    Lindsay, J.J.; Gilbert, A.H.; Birch, T.W.

    1992-05-01T23:59:59.000Z

    The report describes the factors that affect the availability of fuelwood from NIPF lands in the Northeastern United States (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, Maryland, New Jersey, New York, and Pennsylvania). It is part of a comprehensive wood-for-energy study entitled 'The Production, Consumption, and Marketing of Wood for Energy in the Northeast (Northeast Regional Study 142).'' The study is designed to: (1) Estimate the demand for wood energy in the Northeast by consuming sectors, state, and region; (2) Analyze the managment and supply of wood for energy processing as well as marketing structures; (3) Identify goals and effectiveness of actual and alternative local, state, and Federal forest policies and contrast these with the objectives of forest owners with regard to the use of wood for energy. The objective of the study is to analyze the supply of wood energy, that is, to identify and describe the factors that influence NIPF owners to harvest, or permit the harvest, of fuelwood from their land.

  19. Factors Influencing Water Heating Energy Use and Peak Demand in a Large Scale Residential Monitoring Study

    E-Print Network [OSTI]

    Bouchelle, M. P.; Parker, D. S.; Anello, M. T.

    2000-01-01T23:59:59.000Z

    , as well as obtain improved appliance energy consumption indexes and load profiles. A portion of the monitoring measures water heater energy use and demand in each home on a 15-minute basis....

  20. Economic and Policy Factors Affecting Energy Efficiency Improvements in the U. S. Paper Industry

    E-Print Network [OSTI]

    Freund, S. H.

    1984-01-01T23:59:59.000Z

    The U.S. pulp, paper and paperboard industry has made significant improvements over the past eleven years in the energy efficiency of its operations. The industry is firmly committed to: increased utilization of important renewable domestic energy...

  1. Modified Boltzmann Transport Equation and Freeze Out

    E-Print Network [OSTI]

    Csernai, L P; Molnár, E; Nyiri, A; Tamosiunas, K

    2005-01-01T23:59:59.000Z

    We study Freeze Out process in high energy heavy ion reaction. The description of the process is based on the Boltzmann Transport Equation (BTE). We point out the basic limitations of the BTE approach and introduce Modified BTE. The Freeze Out dynamics is presented in the 4-dimensional space-time in a layer of finite thickness, and we employ Modified BTE for the realistic Freeze Out description.

  2. Modified Boltzmann Transport Equation and Freeze Out

    E-Print Network [OSTI]

    L. P. Csernai; V. K. Magas; E. Molnar; A. Nyiri; K. Tamosiunas

    2005-05-26T23:59:59.000Z

    We study Freeze Out process in high energy heavy ion reaction. The description of the process is based on the Boltzmann Transport Equation (BTE). We point out the basic limitations of the BTE approach and introduce Modified BTE. The Freeze Out dynamics is presented in the 4-dimensional space-time in a layer of finite thickness, and we employ Modified BTE for the realistic Freeze Out description.

  3. Energy technology characterizations handbook: environmental pollution and control factors. Third edition

    SciTech Connect (OSTI)

    Not Available

    1983-03-01T23:59:59.000Z

    This Handbook deals with environmental characterization information for a range of energy-supply systems and provides supplementary information on environmental controls applicable to a select group of environmentally characterized energy systems. Environmental residuals, physical-resource requirements, and discussion of applicable standards are the principal information provided. The quantitative and qualitative data provided are useful for evaluating alternative policy and technical strategies and for assessing the environmental impact of facility siting, energy production, and environmental controls.

  4. Using Two-Factor RSA Token with WebVPN | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group current C3EDepartment of Energy OfficeFactEnergy Bob UnderYour RSA

  5. Extrapolation of the astrophysical S factor for ^7Be(p,gamma)^8B to solar energies

    E-Print Network [OSTI]

    B. K. Jennings; S. Karataglidis; T. D. Shoppa

    1998-08-07T23:59:59.000Z

    We investigate the energy dependence of the astrophysical $S$ factor for the reaction $^7$Be$(p,\\gamma)^8$B, the primary source of high-energy solar neutrinos in the solar $pp$ chain. Using simple models we explore the model dependence in the extrapolation of the experimental data to the region of astrophysical interest near 20 keV. We find that below approximately 400 keV the energy dependence is very well understood and constrained by the data for the elastic scattering of low energy neutrons from $^7$Li. Above 400 keV nuclear distortion of the wave function of the incident proton introduces a significant model dependence. This is particularly important for the s-wave contribution to the $S$ factor. The extracted value of S(0) is $19.0 \\pm 1.0 \\pm 0.2$~eVb. The first error is experimental while the second is an estimate of the theoretical error in the extrapolation.

  6. Human factors design guidelines for maintainability of Department of Energy nuclear facilities

    SciTech Connect (OSTI)

    Bongarra, J.P. Jr.; VanCott, H.P.; Pain, R.F.; Peterson, L.R.; Wallace, R.I.

    1985-06-18T23:59:59.000Z

    Intent of these guidelines is to provide design and design review teams of DOE nuclear facilities with human factors principles to enhance the design and aid in the inspection of DOE nuclear facilities, systems, and equipment. These guidelines are concerned with design features of DOE nuclear facilities which can potentially affect preventive and corrective maintenance of systems within DOE nuclear facilities. Maintenance includes inspecting, checking, troubleshooting, adjusting, replacing, repairing, and servicing activities. Other factors which influence maintainability such as repair and maintenance suport facilities, maintenance information, and various aspects of the environment are also addressed.

  7. The ABC's of Snowmelt: A Topographically Factorized Energy Component Snowmelt Model

    E-Print Network [OSTI]

    Tarboton, David

    index models and more intricate energy balance models. The index models, like the degree- day the energy balance models, though they are complicated and require large amounts of data, can represent plays a crucial role in the hydrology of the United States as well as in many other parts of the world

  8. The ABC's of snowmelt: a topographically factorized energy component snowmelt model

    E-Print Network [OSTI]

    Tarboton, David

    of models: conceptual index models and more intricate energy balance models. The index models, like purposes; while the energy balance models, though they are complicated and require large amounts of data States as well as in many other parts of the world. In the western United States, approximately 75

  9. Optimizing the LU Factorization for Energy Efficiency on a Many-Core Architecture

    E-Print Network [OSTI]

    Gao, Guang R.

    .S.A. {egarcia@,jaime@,rspavel@,ggao@capsl.}udel.edu Abstract. Power consumption and energy efficiency have become a ma- jor bottleneck in the design of new systems for high performance com- puting. The path the use of scalable models for energy consumption and the reorientation of optimization techniques

  10. Energy Price Indices and Discount Factors for Life Cycle Cost Analysis,

    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,OfficeEnd of Year 2010 SNFEnergy Policy ActEnergy | DepartmentVerDatePolicy2013 |

  11. Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis -

    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,OfficeEnd of Year 2010 SNFEnergy Policy ActEnergy | DepartmentVerDatePolicy2013

  12. Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis -

    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,OfficeEnd of Year 2010 SNFEnergy Policy ActEnergy |

  13. Research on Factors Relating to Density and Climate Change | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation,Maze - Making the Path for(Colorado) |theGrowth

  14. Effects of the Built Environment on Transportation: Energy Use, Greenhouse Gas Emissions, and Other Factors (Transportation Energy Futures Series)

    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 :Work4/11ComputationalEdNERSC:Effectand NMRDEMAND Effects

  15. Energy Policy 35 (2007) 15841598 Public opinion about large offshore wind power: Underlying factors

    E-Print Network [OSTI]

    Firestone, Jeremy

    2007-01-01T23:59:59.000Z

    Energy Policy 35 (2007) 1584­1598 Public opinion about large offshore wind power: Underlying opinion regarding offshore wind power based on a survey of residents near a proposed development off Cape, the first offshore wind proposal in North America, in Nantucket Sound (MA, USA) has generated a strong

  16. Modified Advection-Aridity Model of Evapotranspiration Jozsef Szilagyi1

    E-Print Network [OSTI]

    Szilagyi, Jozsef

    Modified Advection-Aridity Model of Evapotranspiration Jozsef Szilagyi1 ; Michael T. Hobbins2=empirically derived constant correction factor. Szilagyi 2007 suggested a temperature-dependent expression for b

  17. Nuclear modification factor in intermediate-energy heavy-ion collisions

    E-Print Network [OSTI]

    M. Lv; Y. G. Ma; G. Q. Zhang; J. H. Chen; D. Q. Fang

    2014-04-16T23:59:59.000Z

    The transverse momentum dependent nuclear modification factors (NMF), namely $R_{CP}$, is investigated for protons produced in Au + Au at 1$A$ GeV within the framework of the isospin-dependent quantum molecular dynamics (IQMD) model. It is found that the radial collective motion during the expansion stage affects the NMF at low transverse momentum a lot. By fitting the transverse mass spectra of protons with the distribution function from the Blast-Wave model, the magnitude of radial flow can be extracted. After removing the contribution from radial flow, the $R_{CP}$ can be regarded as a thermal one and is found to keep unitary at transverse momentum lower than 0.6 GeV/c and enhance at higher transverse momentum, which can be attributed to Cronin effect.

  18. Review Of Rheology Modifiers For Hanford Waste

    SciTech Connect (OSTI)

    Pareizs, J. M.

    2013-09-30T23:59:59.000Z

    As part of Savannah River National Laboratory (SRNL)'s strategic development scope for the Department of Energy - Office of River Protection (DOE-ORP) Hanford Tank Waste Treatment and Immobilization Plant (WTP) waste feed acceptance and product qualification scope, the SRNL has been requested to recommend candidate rheology modifiers to be evaluated to adjust slurry properties in the Hanford Tank Farm. SRNL has performed extensive testing of rheology modifiers for use with Defense Waste Processing Facility (DWPF) simulated melter feed - a high undissolved solids (UDS) mixture of simulated Savannah River Site (SRS) Tank Farm sludge, nitric and formic acids, and glass frit. A much smaller set of evaluations with Hanford simulated waste have also been completed. This report summarizes past work and recommends modifiers for further evaluation with Hanford simulated wastes followed by verification with actual waste samples. Based on the review of available data, a few compounds/systems appear to hold the most promise. For all types of evaluated simulated wastes (caustic Handford tank waste and DWPF processing samples with pH ranging from slightly acidic to slightly caustic), polyacrylic acid had positive impacts on rheology. Citric acid also showed improvement in yield stress on a wide variety of samples. It is recommended that both polyacrylic acid and citric acid be further evaluated as rheology modifiers for Hanford waste. These materials are weak organic acids with the following potential issues: The acidic nature of the modifiers may impact waste pH, if added in very large doses. If pH is significantly reduced by the modifier addition, dissolution of UDS and increased corrosion of tanks, piping, pumps, and other process equipment could occur. Smaller shifts in pH could reduce aluminum solubility, which would be expected to increase the yield stress of the sludge. Therefore, it is expected that use of an acidic modifier would be limited to concentrations that do not appreciably change the pH of the waste; Organics are typically reductants and could impact glass REDOX if not accounted for in the reductant addition calculations; Stability of the modifiers in a caustic, radioactive environment is not known, but some of the modifiers tested were specifically designed to withstand caustic conditions; These acids will add to the total organic carbon content of the wastes. Radiolytic decomposition of the acids could result in organic and hydrogen gas generation. These potential impacts must be addressed in future studies with simulants representative of real waste and finally with tests using actual waste based on the rheology differences seen between SRS simulants and actual waste. The only non-organic modifier evaluated was sodium metasilicate. Further evaluation of this modifier is recommended if a reducing modifier is a concern.

  19. Energy Price Indices and Discount Factors for Life-Cycle Cost Analysis -

    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:RevisedAdvisoryStandard |in STEMEnergyI.ofTrack(CHP) White Paper, April2012

  20. Performance Evaluation and Impact of Weighting Factors on an Energy and Delay Aware Dynamic Source Routing Protocol

    E-Print Network [OSTI]

    Rekik, Jihen Drira; Ghezala, Henda Ben

    2011-01-01T23:59:59.000Z

    Typical applications of the mobile ad-hoc network, MANET, are in disaster recovery operations which have to respect time constraint needs. Since MANET is affected by limited resources such as power constraints, it is a challenge to respect the deadline of a real-time data. This paper proposes the Energy and Delay aware based on Dynamic Source Routing protocol, ED-DSR. ED-DSR efficiently utilizes the network resources such as the intermediate mobile nodes energy and load. It ensures both timeliness and energy efficiency by avoiding low-power and overloaded intermediate mobile nodes. Through simulations, we compare our proposed routing protocol with the basic routing protocol Dynamic Source Routing, DSR. Weighting factors are introduced to improve the route selection. Simulation results, using the NS-2 simulator, show that the proposed protocol prolongs the network lifetime (up to 66%), increases the volume of packets delivered while meeting the data flows real-time constraints and shortens the endto- end delay...

  1. Energy Unit Conversion Factors / 1Joule (J) equals 1 2.78 x lO-7 9.49 x 1o-4

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    Energy Unit Conversion Factors J kWh Btu -~ / 1Joule (J) equals 1 2.78 x lO-7 9.49 x 1o-4 1 electron volt (eV) equals 1.60 x lo-l9 4.45 x lo-26 1.52 x 1o-22 Energy Equivalents Crude petroleum (42

  2. Modified Faraday cup

    DOE Patents [OSTI]

    Elmer, John W. (Pleasanton, CA); Teruya, Alan T. (Livermore, CA); O'Brien, Dennis W. (Livermore, CA)

    1996-01-01T23:59:59.000Z

    A tomographic technique for measuring the current density distribution in electron beams using electron beam profile data acquired from a modified Faraday cup to create an image of the current density in high and low power beams. The modified Faraday cup includes a narrow slit and is rotated by a stepper motor and can be moved in the x, y and z directions. The beam is swept across the slit perpendicular thereto and controlled by deflection coils, and the slit rotated such that waveforms are taken every few degrees form 0.degree. to 360.degree. and the waveforms are recorded by a digitizing storage oscilloscope. Two-din-tensional and three-dimensional images of the current density distribution in the beam can be reconstructed by computer tomography from this information, providing quantitative information about the beam focus and alignment.

  3. Modified Faraday cup

    DOE Patents [OSTI]

    Elmer, J.W.; Teruya, A.T.; O`Brien, D.W.

    1996-09-10T23:59:59.000Z

    A tomographic technique for measuring the current density distribution in electron beams using electron beam profile data acquired from a modified Faraday cup to create an image of the current density in high and low power beams is disclosed. The modified Faraday cup includes a narrow slit and is rotated by a stepper motor and can be moved in the x, y and z directions. The beam is swept across the slit perpendicular thereto and controlled by deflection coils, and the slit rotated such that waveforms are taken every few degrees from 0{degree} to 360{degree} and the waveforms are recorded by a digitizing storage oscilloscope. Two-dimensional and three-dimensional images of the current density distribution in the beam can be reconstructed by computer tomography from this information, providing quantitative information about the beam focus and alignment. 12 figs.

  4. The 3He(alpha,gamma)7Be S-factor at solar energies: the prompt gamma experiment at LUNA

    E-Print Network [OSTI]

    H. Costantini; D. Bemmerer; F. Confortola; A. Formicola; Gy. Gyürky; P. Bezzon; R. Bonetti; C. Broggini; P. Corvisiero; Z. Elekes; Zs. Fülöp; G. Gervino; A. Guglielmetti; C. Gustavino; G. Imbriani; M. Junker; M. Laubenstein; A. Lemut; B. Limata; V. Lozza; M. Marta; R. Menegazzo; P. Prati; V. Roca; C. Rolfs; C. Rossi Alvarez; E. Somorjai; O. Straniero; F. Strieder; F. Terrasi; H. P. Trautvetter

    2008-09-30T23:59:59.000Z

    The 3He(alpha,gamma)7Be process is a key reaction in both Big-Bang nucleosynthesis and p-p chain of Hydrogen Burning in Stars. A new measurement of the 3He(alpha,gamma)7Be cross section has been performed at the INFN Gran Sasso underground laboratory by both the activation and the prompt gamma detection methods. The present work reports full details of the prompt gamma detection experiment, focusing on the determination of the systematic uncertainty. The final data, including activation measurements at LUNA, are compared with the results of the last generation experiments and two different theoretical models are used to obtain the S-factor at solar energies.

  5. Interaction between Tachyon and Hessence (or Hantom) dark energies

    E-Print Network [OSTI]

    Surajit Chattopadhyay; Ujjal Debnath

    2010-10-07T23:59:59.000Z

    In this paper, we have considered that the universe is filled with tachyon, hessence (or hantom) dark energies. Subsequently we have investigated the interactions between tachyon and hessence (hantom) dark energies and calculated the potentials considering the power law form of the scale factor. It has been revealed that the tachyonic potential always decreases and hessence (or hantom) potential increases with corresponding fields. Furthermore, we have considered a correspondence between the hessence (or hantom) dark energy density and new variable modified Chaplygin gas energy density. From this, we have found the expressions of the arbitrary positive constants B0 and C of new variable modified Chaplygin gas.

  6. Sensitivity of Pion versus Parton-Jet Nuclear Modification Factors to the Path-Length Dependence of Jet-Energy Loss at RHIC and LHC

    E-Print Network [OSTI]

    Betz, Barbara

    2015-01-01T23:59:59.000Z

    We compare the jet-path length and beam-energy dependence of the pion nuclear modification factor and a parton-jet nuclear modification factor at RHIC and LHC. We contrast predictions based on a linear pQCD and a highly non-linear hybrid-AdS holographic model of jet-energy loss. We find that both models require a reduction of the jet-medium coupling from RHIC to LHC to account for the measured pion nuclear modification factor. In case of the parton-jet nuclear modification factor, however, which serves as a lower bound for the LO jet nuclear modification factor of reconstructed jets, the extracted data can be characterized without a reduced jet-medium coupling at LHC energies. We conclude that while reconstructed jets are sensitive to both quarks and gluons and thus provide more information than the pion nuclear modification factor, their information regarding the jet-medium coupling is limited due to the superimposition with NLO and medium effects. Hence, a detailed description of the underlying physics requ...

  7. Development of a Cell-Based Fluorescence Resonance Energy Transfer Reporter for Bacillus anthracis Lethal Factor Protease

    SciTech Connect (OSTI)

    Kimura, R H; Steenblock, E R; Camarero, J A

    2007-03-22T23:59:59.000Z

    We report the construction of a cell-based fluorescent reporter for anthrax lethal factor (LF) protease activity using the principle of fluorescence resonance energy transfer (FRET). This was accomplished by engineering an Escherichia coli cell line to express a genetically encoded FRET reporter and LF protease. Both proteins were encoded in two different expression plasmids under the control of different tightly controlled inducible promoters. The FRET-based reporter was designed to contain a LF recognition sequence flanked by the FRET pair formed by CyPet and YPet fluorescent proteins. The length of the linker between both fluorescent proteins was optimized using a flexible peptide linker containing several Gly-Gly-Ser repeats. Our results indicate that this FRET-based LF reporter was readily expressed in E. coli cells showing high levels of FRET in vivo in the absence of LF. The FRET signal, however, decreased 5 times after inducing LF expression in the same cell. These results suggest that this cell-based LF FRET reporter may be used to screen genetically encoded libraries in vivo against LF.

  8. Polyoxometalate-Graphene Nanocomposite Modified Electrode for...

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

    Polyoxometalate-Graphene Nanocomposite Modified Electrode for Electrocatalytic Detection of Ascorbic Acid. Polyoxometalate-Graphene Nanocomposite Modified Electrode for...

  9. Power Factor Improvement

    E-Print Network [OSTI]

    Viljoen, T. A.

    1979-01-01T23:59:59.000Z

    Power factor control is a necessary ingredient in any successful Energy Management Program. Many companies are operating with power factors of 70% or less and are being penalized through the electrical utility bill. This paper starts by describing...

  10. Demoing the Modified TALON Robot

    Broader source: Energy.gov [DOE]

    A technician at Idaho National Laboratory demonstrates the modified TALON robot; which is being sent to assist emergency workers at Japan's Fukishima nuclear reactor.

  11. Relative Response to Low-Energy Photons and Determination of Instrument Correction Factors for Portable Radiation Instrumentation

    E-Print Network [OSTI]

    Wagoner, David Andrew

    2011-10-21T23:59:59.000Z

    > +20%. From the relative response plots, instrument correction factors are not necessary for the following; Eberline RO-20, Thermo RadEye B20, and Bicron Micro Rem LE. Correction factors of 0.7 and 1.5 should be applied for photons between 80 ? 120... keV for the Eberline Teletector 6112B low and high-range detectors, respectively. A correction factor of 0.8 should be applied for photons below 120 keV for the Eberline RO-7-BM. For the Thermo Mk2 EPD, a correction factor of 1.25 should...

  12. Our Favorite Electrical Energy Saving Opportunities

    E-Print Network [OSTI]

    Turner, W. C.; Estes, C. B.; Spivey, V.

    units. Required Data: Nameplate Data: Voltage Full Load Amps Phase Power Factor Horsepower Current Sequence of Units Local Temperature Data: Total Hours/Year at Observe OF Cost of Energy $0.038/KWH Labor Cost (Electrician) $25.00/Hr... an electrician would take to modify the existing electronic controls. The wage estimate includes overhead and profit. 1. c = current 2. p = proposed ESL-IE-86-06-131 Proceedings from the Eighth Annual Industrial Energy Technology Conference, Houston, TX...

  13. Cosmology of modified (but second order) gravity

    E-Print Network [OSTI]

    Tomi S. Koivisto

    2009-10-21T23:59:59.000Z

    This is a brief review of modified gravity cosmologies. Generically extensions of gravity action involve higher derivative terms, which can result in ghosts and instabilities. There are three ways to circumvent this: Chern-Simons terms, first order variational principle and nonlocality. We consider recent cosmological applications of these three classes of modified gravity models, in particular to the dark energy problem. The viable parameter spaces can be very efficiently constrained by taking into account cosmological data from all epochs in addition to Solar system tests and stability considerations. We make some new remarks concerning so called algebraic scalar-tensor theories, biscalar reformulation of nonlocal actions involving the inverse d'Alembertian, and a possible covariant formulation holographic cosmology with nonperturbative gravity.

  14. Compilation of Diversity Factors and Schedules for Energy and Cooling Load Calculations, ASHRAE Research Project 1093-RP, Final Report

    E-Print Network [OSTI]

    Abushakra, B.; Sreshthaputra, A.; Haberl, J. S.; Claridge, D. E.

    2001-01-01T23:59:59.000Z

    of the diversity factor calculations are applied to the data collected for this project. The buildings analyzed for this report consisted of office buildings monitored by the ESL, and office buildings provided by the LBNL....

  15. MODIFIED ZONE METHOD CALCULATOR

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, InaprilU . S . D e p a r t m e n t

  16. Modified acyl-ACP desaturase

    DOE Patents [OSTI]

    Cahoon, Edgar B. (Shoreham, NY); Shanklin, John (Shoreham, NY); Lindgvist, Ylva (Jarfalla, SE); Schneider, Gunter (Jarfalla, SE)

    1998-01-06T23:59:59.000Z

    Disclosed is a methods for modifying the chain length and double bond positional specificities of a soluble plant fatty acid desaturase. More specifically, the method involves modifying amino acid contact residues in the substrate binding channel of the soluble fatty acid desaturase which contact the fatty acid. Specifically disclosed is the modification of an acyl-ACP desaturase. Amino acid contact residues which lie within the substrate binding channel are identified, and subsequently replaced with different residues to effect the modification of activity.

  17. Modified Acyl-ACP desaturase

    DOE Patents [OSTI]

    Cahoon, Edgar B. (Shoreham, NY); Shanklin, John (Shoreham, NY); Lindqvist, Ylva (Jarfalla, SE); Schneider, Gunter (Jarfalla, SE)

    1999-03-30T23:59:59.000Z

    Disclosed is a method for modifying the chain length and double bond positional specificities of a soluble plant fatty acid desaturase. More specifically, the method involves modifying amino acid contact residues in the substrate binding channel of the soluble fatty acid desaturase which contact the fatty acid. Specifically disclosed is the modification of an acyl-ACP desaturase. Amino acid contact residues which lie within the substrate binding channel are identified, and subsequently replaced with different residues to effect the modification of activity.

  18. New measurement of $\\rm S_{bare}(E)$ factor of the d(d,p)t reaction at astrophysical energies via the Trojan-horse method

    E-Print Network [OSTI]

    Li, Chengbo; Fu, Yuanyong; Zhou, Jing; Zhou, Shuhua; Meng, Qiuying; Spitaleri, C; Tumino, A; Pizzone, R G; Lamia, L

    2015-01-01T23:59:59.000Z

    The study of d(d,p)t reaction is very important for the nucleosynthesis in both standard Big Bang and stellar evolution, as well as for the future fusion reactor planning of energy production. The d(d,p)t bare nucleus astrophysical S(E) factor has been measured indirectly at energies from about 400 keV down to several keV by means of the Trojan horse method applied to the quasi-free process $\\rm {}^2H({}^6Li,pt){}^4He$ induced at the lithium beam energy of 9.5 MeV, which is closer to the zero quasi-free energy point, in CIAE HI-13 tandem accelerator laboratory. An accurate analysis leads to the determination of the d(d,p)t $\\rm S(E)$ factor $\\rm S_{bare}(0)=56.7 \\pm 2.0 keV*b$ and of the corresponding electron screening potential $\\rm U_e = 13.2 \\pm 4.3 eV$. In addition, this work also gives an updated test for the Trojan horse nucleus invariance comparing with previous indirect investigations using $\\rm {}^3He=(d+p)$ breakup.

  19. New measurement of $\\rm S_{bare}(E)$ factor of the d(d,p)t reaction at astrophysical energies via the Trojan-horse method

    E-Print Network [OSTI]

    Chengbo Li; Qungang Wen; Yuanyong Fu; Jing Zhou; Shuhua Zhou; Qiuying Meng; C. Spitaleri; A. Tumino; R. G. Pizzone; L. Lamia

    2015-04-08T23:59:59.000Z

    The study of d(d,p)t reaction is very important for the nucleosynthesis in both standard Big Bang and stellar evolution, as well as for the future fusion reactor planning of energy production. The d(d,p)t bare nucleus astrophysical S(E) factor has been measured indirectly at energies from about 400 keV down to several keV by means of the Trojan horse method applied to the quasi-free process $\\rm {}^2H({}^6Li,pt){}^4He$ induced at the lithium beam energy of 9.5 MeV, which is closer to the zero quasi-free energy point, in CIAE HI-13 tandem accelerator laboratory. An accurate analysis leads to the determination of the d(d,p)t $\\rm S(E)$ factor $\\rm S_{bare}(0)=56.7 \\pm 2.0 keV*b$ and of the corresponding electron screening potential $\\rm U_e = 13.2 \\pm 4.3 eV$. In addition, this work also gives an updated test for the Trojan horse nucleus invariance comparing with previous indirect investigations using $\\rm {}^3He=(d+p)$ breakup.

  20. Creating a Multi-functional Library of Grass Transcription Factors for the Energy Crop Model System Brachypodium Distachyon (2014 DOE JGI Genomics of Energy & Environment Meeting)

    SciTech Connect (OSTI)

    Coomey, Joshua [University of Massashusetts Amherst

    2014-03-20T23:59:59.000Z

    Joshua Coomey of the University of Massachusetts Amherst, speaks at the 9th Annual Genomics of Energy & Environment Meeting on March 20, 2014 in Walnut Creek, Calif.

  1. Elastin protein levels are a vital modifier affecting normal lung development and susceptibility to emphysema

    E-Print Network [OSTI]

    Mecham, Robert

    Elastin protein levels are a vital modifier affecting normal lung development and susceptibility modifier affecting normal lung development and susceptibility to emphysema. Am J Physiol Lung Cell Mol-induced emphysema is highly variable, and numerous genetic and environmental factors are thought to mitigate lung

  2. DNA polymerase with modified processivity

    DOE Patents [OSTI]

    Bedford, Ella (Brookline, MA); Tabor, Stanley (Cambridge, MA); Richardson, Charles C. (Chestnut Hill, MA)

    1999-01-01T23:59:59.000Z

    Chimeric DNA polymerase having a DNA polymerase domain and processivity factor binding domain not naturally associated with DNA polymerase domain.

  3. Can Holographic dark energy increase the mass of the wormhole?

    E-Print Network [OSTI]

    Surajit Chattopadhyay; Davood Momeni; Aziza Altaibayeva; Ratbay Myrzakulov

    2014-11-26T23:59:59.000Z

    In this work, we have studied accretion of dark energy (DE) onto Morris- Thorne wormhole with three different forms, namely, holographic dark energy, holographic Ricci dark energy and modified holographic Ricci dark energy . Considering the scale factor in power-law form we have observed that as the holographic dark energy accretes onto wormhole, the mass of the wormhole is decreasing. In the next phase we considered three parameterization schemes that are able to get hold of quintessence as well as phantom phases. Without any choice of scale factor we reconstructed Hubble parameter from conservation equation and dark energy densities and subsequently got the mass of the wormhole separately for accretion of the three dark energy candidates. It was observed that if these dark energies accrete onto the wormhole, then for quintessence stage, wormhole mass decreases up to a certain finite value and then again increases to aggressively during phantom phase of the universe.

  4. Particle Acceleration in Rotating Modified Hayward and Bardeen Black Holes

    E-Print Network [OSTI]

    Behnam Pourhassan; Ujjal Debnath

    2015-06-10T23:59:59.000Z

    In this paper we consider rotating modified Hayward and Bardeen black holes as particle accelerators. We investigate the the center of mass energy of two colliding neutral particles with same rest masses falling from rest at infinity to near the horizons of the mentioned black holes. We also investigate the range of the particle's angular momentum and the orbit of the particle.

  5. Particle Acceleration in Rotating Modified Hayward and Bardeen Black Holes

    E-Print Network [OSTI]

    Pourhassan, Behnam

    2015-01-01T23:59:59.000Z

    In this paper we consider rotating modified Hayward and Bardeen black holes as particle accelerators. We investigate the the center of mass energy of two colliding neutral particles with same rest masses falling from rest at infinity to near the horizons of the mentioned black holes. We also investigate the range of the particle's angular momentum and the orbit of the particle.

  6. A dynamic kernel modifier for linux

    SciTech Connect (OSTI)

    Minnich, R. G. (Ronald G.)

    2002-09-03T23:59:59.000Z

    Dynamic Kernel Modifier, or DKM, is a kernel module for Linux that allows user-mode programs to modify the execution of functions in the kernel without recompiling or modifying the kernel source in any way. Functions may be traced, either function entry only or function entry and exit; nullified; or replaced with some other function. For the tracing case, function execution results in the activation of a watchpoint. When the watchpoint is activated, the address of the function is logged in a FIFO buffer that is readable by external applications. The watchpoints are time-stamped with the resolution of the processor high resolution timers, which on most modem processors are accurate to a single processor tick. DKM is very similar to earlier systems such as the SunOS trace device or Linux TT. Unlike these two systems, and other similar systems, DKM requires no kernel modifications. DKM allows users to do initial probing of the kernel to look for performance problems, or even to resolve potential problems by turning functions off or replacing them. DKM watchpoints are not without cost: it takes about 200 nanoseconds to make a log entry on an 800 Mhz Pentium-Ill. The overhead numbers are actually competitive with other hardware-based trace systems, although it has less 'Los Alamos National Laboratory is operated by the University of California for the National Nuclear Security Administration of the United States Department of Energy under contract W-7405-ENG-36. accuracy than an In-Circuit Emulator such as the American Arium. Once the user has zeroed in on a problem, other mechanisms with a higher degree of accuracy can be used.

  7. Consistent Modified Gravity Analysis of Anisotropic Galaxy Clustering Using BOSS DR11

    E-Print Network [OSTI]

    Song, Yong-Seon; Linder, Eric; Koyama, Kazuya; Sabiu, Cristiano G; Zhao, Gong-Bo; Bernardeau, Francis; Nishimichi, Takahiro; Okumura, Teppei

    2015-01-01T23:59:59.000Z

    We analyse the clustering of cosmic large scale structure using a consistent modified gravity perturbation theory, accounting for anisotropic effects along and transverse to the line of sight. The growth factor has a particular scale dependence in f(R) gravity and we fit for the shape parameter f_{R0} simultaneously with the distance and the large scale (general relativity) limit of the growth function. Using more than 690,000 galaxies in the Baryon Oscillation Spectroscopy Survey Data Release 11, we find no evidence for extra scale dependence, with the 95\\% confidence upper limit |f_{R0}| <8 \\times 10^{-4}. Future clustering data, such as from the Dark Energy Spectroscopic Instrument, can use this consistent methodology to impose tighter constraints.

  8. SCIENCE AT THE CROSSROADS Genetically Modified Foods

    E-Print Network [OSTI]

    Newman, Stuart A.

    SCIENCE AT THE CROSSROADS Genetically Modified Foods and the Attack on Nature Stuart A. NewmanBy:[Newman,StuartA.]At:16:493July2009 #12;about, genetically modified (GM) food as scientifically ignorant, economically and Arpad Pusztai, ``Effect of Diets Containing Genetically Modified Potatoes Expressing galanthus nivalis

  9. Adhesives from modified soy protein

    DOE Patents [OSTI]

    Sun, Susan (Manhattan, KS); Wang, Donghai (Manhattan, KS); Zhong, Zhikai (Manhattan, KS); Yang, Guang (Shanghai, CN)

    2008-08-26T23:59:59.000Z

    The, present invention provides useful adhesive compositions having similar adhesive properties to conventional UF and PPF resins. The compositions generally include a protein portion and modifying ingredient portion selected from the group consisting of carboxyl-containing compounds, aldehyde-containing compounds, epoxy group-containing compounds, and mixtures thereof. The composition is preferably prepared at a pH level at or near the isoelectric point of the protein. In other preferred forms, the adhesive composition includes a protein portion and a carboxyl-containing group portion.

  10. EVALUATING NATIONAL ENVIRONMENTAL SUSTAINABILITY: PERFORMANCE MEASURES AND INFLUENTIAL FACTORS FOR

    E-Print Network [OSTI]

    development, industrial structure, energy prices, environmental governance, pollution abatement and control, environmental governance, and energy prices are major influential factors, with energy prices the most important components factor analysis to help build subindices measuring waste and pollution, sustainable energy

  11. Method of modifying a surface

    DOE Patents [OSTI]

    Renk, Timothy J. (Albuquerque, NM); Sorensen, Neil R. (Albuquerque, NM); Senft, Donna Cowell (Albuquerque, NM); Buchheit, Jr., Rudolph G. (Columbus, OH); Thompson, Michael O. (Ithaca, NY); Grabowski, Kenneth S. (Alexandria, VA)

    2000-01-01T23:59:59.000Z

    The present invention provides a surface modification method that provides beneficial changes in surface properties, can modify a surface to a greater depth than previous methods, and that is suitable for industrial application. The present method comprises applying a thin-film coating to a surface of a substrate, then subjecting the coated surface to an ion beam. The ion beam power pulse heats the coated surface, leading to alloying between the material in the coating and the material of the substrate. Rapid cooling of the alloyed layer after an ion beam pulse can lead to formation of metastable alloys and microstructures not accessible by conventional alloying methods or intense ion beam treatment of the substrate alone.

  12. An integrated analytical framework for quantifying the LCOE of waste-to-energy facilities for a range of greenhouse gas emissions policy and technical factors

    SciTech Connect (OSTI)

    Townsend, Aaron K., E-mail: aarontownsend@utexas.edu [Department of Mechanical Engineering, University of Texas at Austin, 1 University Station C2200, Austin, TX 78712 (United States); Webber, Michael E. [Department of Mechanical Engineering, University of Texas at Austin, 1 University Station C2200, Austin, TX 78712 (United States)

    2012-07-15T23:59:59.000Z

    This study presents a novel integrated method for considering the economics of waste-to-energy (WTE) facilities with priced greenhouse gas (GHG) emissions based upon technical and economic characteristics of the WTE facility, MSW stream, landfill alternative, and GHG emissions policy. The study demonstrates use of the formulation for six different policy scenarios and explores sensitivity of the results to ranges of certain technical parameters as found in existing literature. The study shows that details of the GHG emissions regulations have large impact on the levelized cost of energy (LCOE) of WTE and that GHG regulations can either increase or decrease the LCOE of WTE depending on policy choices regarding biogenic fractions from combusted waste and emissions from landfills. Important policy considerations are the fraction of the carbon emissions that are priced (i.e. all emissions versus only non-biogenic emissions), whether emissions credits are allowed due to reducing fugitive landfill gas emissions, whether biogenic carbon sequestration in landfills is credited against landfill emissions, and the effectiveness of the landfill gas recovery system where waste would otherwise have been buried. The default landfill gas recovery system effectiveness assumed by much of the industry yields GHG offsets that are very close to the direct non-biogenic GHG emissions from a WTE facility, meaning that small changes in the recovery effectiveness cause relatively larger changes in the emissions factor of the WTE facility. Finally, the economics of WTE are dependent on the MSW stream composition, with paper and wood being advantageous, metal and glass being disadvantageous, and plastics, food, and yard waste being either advantageous or disadvantageous depending upon the avoided tipping fee and the GHG emissions price.

  13. Modified Accelerated Cost-Recovery System (MACRS)

    Broader source: Energy.gov [DOE]

    Under the federal Modified Accelerated Cost-Recovery System (MACRS), businesses may recover investments in certain property through depreciation deductions. The MACRS establishes a set of class l...

  14. 2009 Guidelines to Defra / DECC's GHG Conversion Factors for Company Reporting Produced by AEA for the Department of Energy and Climate Change (DECC)

    E-Print Network [OSTI]

    , emissions factors have only been provided for CO2. The 2009 update provides emissions factors for the non-CO to landfill) into kilograms of carbon dioxide equivalent (CO2eq). Carbon dioxide equivalent is a universal and refrigeration have been added. v. International electricity emission factors have been added Major changes

  15. Linking Continuous Energy Management and Open Automated Demand Response

    E-Print Network [OSTI]

    Piette, Mary Ann

    2009-01-01T23:59:59.000Z

    description of six energy and demand management concepts.how quickly it can modify energy demand. This is not a newimprovements in both energy efficiency and demand response (

  16. Determination of the 3He+alpha\\to 7Be asymp. normalization coefficients (nucl. vertex constants) and their application for extrapolation of the 3He(alpha,gamma)7Be astroph. S-factors to the solar energy region

    E-Print Network [OSTI]

    S. B. Igamov; Q. I. Tursunmahatov; R. Yarmukhamedov

    2010-11-22T23:59:59.000Z

    A new analysis of the modern precise measured astrophysical $S$ factors for the direct capture $^3He(\\alpha,\\gamma)^7{\\rm {Be}}$ reaction [B.S. Nara Singh {\\it et al.}, Phys.Rev.Lett. {\\bf 93}, 262503 (2004); D. Bemmerer {\\it et al.}, Phys.Rev.Lett. {\\bf 97}, 122502 (2006); F.Confortola {\\it et al.}, Phys.Rev.C {\\bf 75}, 065803 (2007), T.A.D.Brown {\\it et al.}, Phys.Rev. C {\\bf 76}, 055801 (2007) and A Di Leva, {\\it et al.},Phys.Rev.Lett. {\\bf 102}, 232502 (2009)] populating to the ground and first excited states of $^7{\\rm Be}$ is carried out based on the modified two - body potential approach. New estimates are obtained for the $^{\\glqq}$indirectly determined\\grqq\\, values of the asymptotic normalization constants (the nuclear vertex constants) for $^3{\\rm {He}}+\\alpha\\to{\\rm {^7Be}}$(g.s.) and $^3{\\rm {He}}+\\alpha\\to{\\rm {^7Be}}$(0.429 MeV) as well as the astrophysical $S$ factors $S_{34}(E)$ at E$\\le$ 90 keV, including $E$=0. The values of asymptotic normalization constants have been used for getting information about the $\\alpha$-particle spectroscopic factors for the mirror (${\\rm{^7Li}}{\\rm {^7Be}}$)-pair.

  17. Diabat L., Remund J., Wald L., 2003. Linke turbidity factors for several sites in Africa. Solar Energy, 75, 2, 111-119. Copyright UFAE Meteotest -Ecole des Mines de Paris Armines 1

    E-Print Network [OSTI]

    Boyer, Edmond

    Energy, 75, 2, 111-119. Copyright UFAE ­ Meteotest - Ecole des Mines de Paris ­ Armines 1 LINKE TURBIDITY turbidity factor (TL) has been estimated at sixteen locations in Africa (9 stations in Egypt, 2 month with a sufficient accuracy. Though limited to the Mediterranean area, Egypt and sub

  18. HYPERION/ODS MODIFYING CANNED QUERIES

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    HYPERION/ODS MODIFYING CANNED QUERIES **Quick review of the Hyperion Query Pane: Sections: Where, Criteria, Views and Joins. Hyperion/ODS ­ Modifying Canned Queries 1 #12;What Canned Queries are Available Note: Go to http://ods.binghamton.edu to view the canned query support documentation for detailed

  19. Determination of the 3He+alpha\\to 7Be asymp. normalization coefficients (nucl. vertex constants) and their application for extrapolation of the 3He(alpha,gamma)7Be astroph. S-factors to the solar energy region

    E-Print Network [OSTI]

    S. B. Igamov; K. I. Tursunmakhatov; R. Yarmukhamedov

    2008-05-28T23:59:59.000Z

    A new analysis of the precise experimental astrophysical $S$-factors for the direct capture $^3He(\\alpha,\\gamma)^7{\\rm {Be}}$ reaction [B.S. Nara Singh et al., Phys.Rev.Lett. {\\bf 93} (2004) 262503; D. Bemmerer et al., Phys.Rev.Lett. {\\bf 97} (2006) 122502; F.Confortola et al., Phys.Rev. {\\bf C 75} (2007) 065803 and T.A.D.Brown et al., Phys.Rev. {\\bf C 76} (2007) 055801] populating to the ground and first excited states of $^7{\\rm Be}$ is carried out based on the modified two - body potential approach in which the direct astrophysical $S$-factor, $S_{34}(E)$, is expressed in terms of the asymptotic normalization constants for $^3{\\rm {He}}+\\alpha\\to ^7{\\rm {Be}}$ and two additional conditions are involved to verify the peripheral character of the reaction under consideration. The Woods--Saxon potential form is used for the bound ($\\alpha+^3{\\rm {He}}$)- state and the $^3{\\rm {He}}\\alpha$- scattering wave functions. New estimates are obtained for the "indirectly measured", values of the asymptotic normalization constants (the nuclear vertex constants) for $^3{\\rm {He}}+\\alpha\\to^7{\\rm {Be}}(g.s.)$ and $^3{\\rm {He}}+\\alpha\\to^7{\\rm {Be}}(0.429 MeV)$ as well as the astrophysical $S$-factors $S_{34}(E)$ at E$\\le$ 90 keV, including $E$=0. The values of asymptotic normalization constants have been used for getting information about the $\\alpha$-particle spectroscopic factors for the mirror ($^7Li^7{\\rm {Be}}$)-pair.

  20. TV Energy Consumption Trends and Energy-Efficiency Improvement Options

    E-Print Network [OSTI]

    Park, Won Young

    2011-01-01T23:59:59.000Z

    LBNL-pend TV Energy Consumption Trends and Energy-EfficiencyTrends and Energy Consumption ..TV Technology Trends and Energy Consumption. 1.2.3. Factors

  1. Nanoparticles modified with multiple organic acids

    DOE Patents [OSTI]

    Cook, Ronald Lee (Lakewood, CO); Luebben, Silvia DeVito (Golden, CO); Myers, Andrew William (Arvada, CO); Smith, Bryan Matthew (Boulder, CO); Elliott, Brian John (Superior, CO); Kreutzer, Cory (Brighton, CO); Wilson, Carolina (Arvada, CO); Meiser, Manfred (Aurora, CO)

    2007-07-17T23:59:59.000Z

    Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In particular, the nanoparticle surface is modified by reactions with two or more different carboxylic acids, at least one of which is an organic carboxylic acid. The product is a surface modified boehmite nanoparticle that has an inorganic aluminum oxyhydroxide core, or part aluminum oxyhydroxide core and a surface-bonded organic shell. Organic carboxylic acids of this invention contain at least one carboxylic acid group and one carbon-hydrogen bond. One embodiment of this invention provides boehmite nanoparticles that have been surface modified with two or more acids one of which additional carries at least one reactive functional group. Another embodiment of this invention provides boehmite nanoparticles that have been surface modified with multiple acids one of which has molecular weight or average molecular weight greater than or equal to 500 Daltons. Yet, another embodiment of this invention provides boehmite nanoparticles that are surface modified with two or more acids one of which is hydrophobic in nature and has solubility in water of less than 15 by weight. The products of the methods of this invention have specific useful properties when used in mixture with liquids, as filler in solids, or as stand-alone entities.

  2. Binding Energies of the Alpha Particle and the A=3 Isobars from a Theoretical Geometric Model

    E-Print Network [OSTI]

    Gustavo R. Gonzalez-Martin

    2008-05-03T23:59:59.000Z

    We assume a triple geometric structure for the electromagnetic nuclear interaction. This nuclear electromagnetism is used to calculate the binding energies of the alpha particle and the A=3 isobar nuclides. The approximation for the resultant wave equation which lead to the deuteron binding energy from the modified Mathieu equation for the radial eigenvalue equation also establishes proton-electron-proton magnetic bonds in these nuclides and determines their binding energies. Completely theoretical calculations give 28.5 Mev., 7.64 Mev. and 8.42 Mev. for the binding energies of the alpha particle, the helium 3 isotope and tritium respectively. These values admit correction factors due to the approximations made.

  3. Chemically modified graphite for electrochemical cells

    DOE Patents [OSTI]

    Greinke, R.A.; Lewis, I.C.

    1998-05-26T23:59:59.000Z

    This invention relates to chemically modified graphite particles: (a) that are useful in alkali metal-containing electrode of a electrochemical cell comprising: (1) the electrode, (2) a non-aqueous electrolytic solution comprising an organic aprotic solvent which solvent tends to decompose when the electrochemical cell is in use, and an electrically conductive salt of an alkali metal, and (3) a counter electrode; and (b) that are chemically modified with fluorine, chlorine, iodine or phosphorus to reduce such decomposition. This invention also relates to electrodes comprising such chemically modified graphite and a binder and to electrochemical cells containing such electrodes. 3 figs.

  4. Determination of the 3He+alpha\\to 7Be asymp. normalization coefficients (nucl. vertex constants) and their application for extrapolation of the 3He(alpha,gamma)7Be astroph. S-factors to the solar energy region

    E-Print Network [OSTI]

    Igamov, S B; Yarmukhamedov, R

    2009-01-01T23:59:59.000Z

    A new analysis of the precise experimental astrophysical $S$ factors for the direct capture $^3He(\\alpha,\\gamma)^7{\\rm {Be}}$ reaction [B.S. Nara Singh et al., Phys.Rev.Lett. {\\bf 93} (2004) 262503; D. Bemmerer et al., Phys.Rev.Lett. {\\bf 97} (2006) 122502; F.Confortola et al., Phys.Rev.C {\\bf 75} (2007) 065803 and T.A.D.Brown et al., Phys.Rev. C {\\bf 76} (2007) 055801] populating to the ground and first excited states of $^7{\\rm Be}$ is carried out based on the modified two - body potential approach in which the direct astrophysical $S$ factor, $S_{34}(E)$, is expressed in terms of the asymptotic normalization constants for $^3{\\rm {He}}+\\alpha\\to ^7{\\rm {Be}}$ and two additional conditions are involved to verify the peripheral character of the reaction under consideration. The Woods--Saxon potential form is used for the bound ($\\alpha+^3{\\rm {He}}$)- state and the $^3{\\rm {He}}\\alpha$- scattering wave functions. New estimates are obtained for the $^{\\glqq}$indirectly measured\\grqq values of the asymptotic n...

  5. Asymptotic normalization coefficients (nuclear vertex constants) for $p+^7Be\\to ^8B$ and the direct $^7Be(p,?)^8B$ astrophysical S-factors at solar energies

    E-Print Network [OSTI]

    S. B. Igamov; R. Yarmukhamedov

    2008-04-01T23:59:59.000Z

    A new analysis of the precise experimental astrophysical S-factors for the direct capture $^7Be(p,\\gamma)$ $^8B$ reaction [A.J.Junghans et al.Phys.Rev. C 68 (2003) 065803 and L.T. Baby et al. Phys.Rev. C 67 (2003) 065805] is carried out based on the modified two - body potential approach in which the direct astrophysical S-factor, $ {\\rm S_{17}(E)}$, is expressed in terms of the asymptotic normalization constants for $p+^7Be\\to ^8B$ and two additional conditions are involved to verify the peripheral character of the reaction under consideration. The Woods-Saxon potential form is used for the bound ($p+^7Be$)- state wave function and for the $p^7Be$- scattering wave function. New estimates are obtained for the $^{\\glqq}$indirectly measured\\grqq values of the asymptotic normalization constants (the nuclear vertex constants) for the $p+^7Be\\to ^8B$ and $S_{17}(E)$ at E$\\le$ 115 keV, including $E$=0. These values of $S_{17}(E)$ and asymptotic normalization constants have been used for getting information about the $^{\\glqq}$indirectly measured\\grqq values of the $s$ wave average scattering length and the $p$ wave effective range parameters for $p^7Be$- scattering.

  6. 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 for4,645 3,625govInstrumentstdmadapInactiveVisitingContractElectron-StateEnergy /newsroom/_assets/images/energy-icon.png Energy

  7. Poplar trees could be genetically modified to

    E-Print Network [OSTI]

    for bioethanol production Flickr/Robert Crum OPINIONS Are new biofuels the ethical answer? Joyce Tait and Banji-modified poplar tree that is a more accessible source of cellulose for bioethanol production. And the emerging

  8. Compatibilizer for crumb rubber modified asphalt

    SciTech Connect (OSTI)

    Labib, M.E. [New Jersey Institute of Technology, Newark, NJ (United States); Memon, G.M.; Chollar, B.H. [Federal Highway Administration, McLean, VA (United States)

    1996-12-31T23:59:59.000Z

    The United States of America discards more than 300 million tires each year, and out of that a large fraction of the tires is dumped into stock piles. This large quantity of tires creates an environmental problem. The use of scrap tires is limited. There is a usage potential in such fields as fuel for combustion and Crumb Rubber-Modified Asphalt binder (CRMA). The use of crumb rubber in modifying asphalt is not a new technique; it is been used since early 1960 by pavement engineers. Crumb rubber is a composite of different blends of natural and synthetic rubber (natural rubber, processing oils, polybutadiene, polystyrene butadiene, and filler). Prior research had concluded that the performance of crumb rubber modified asphalt is asphalt dependent. In some cases it improves the Theological properties and in some cases it degrades the properties of modified asphalt.

  9. Modified Fourier expansions: theory, construction and applications

    E-Print Network [OSTI]

    Adcock, Ben

    2010-10-12T23:59:59.000Z

    Modified Fourier expansions present an alternative to more standard algorithms for the approximation of nonperiodic functions in bounded domains. This thesis addresses the theory of such expansions, their effective construction and computation...

  10. SMAC Advisor: A Decision-Support Tool on Coexistence of Genetically-Modified and Conventional Maize

    E-Print Network [OSTI]

    Bohanec, Marko

    is the introduction of genetically modified (GM) crops. On one hand, GM crops have genetical charateristics. On the other hand, the use of GM crops raises many concerns about their potential ecological and economic impacts. Decision-making about GM crops turns out to be extremely difficult as it involves many factors

  11. Electrical and Production Load Factors 

    E-Print Network [OSTI]

    Sen, Tapajyoti

    2010-07-14T23:59:59.000Z

    Load factors are an important simplification of electrical energy use data and depend on the ratio of average demand to peak demand. Based on operating hours of a facility they serve as an important benchmarking tool for ...

  12. Electrical and Production Load Factors

    E-Print Network [OSTI]

    Sen, Tapajyoti

    2010-07-14T23:59:59.000Z

    Load factors are an important simplification of electrical energy use data and depend on the ratio of average demand to peak demand. Based on operating hours of a facility they serve as an important benchmarking tool for the industrial sector...

  13. DNA polymerase having modified nucleotide binding site for DNA sequencing

    DOE Patents [OSTI]

    Tabor, Stanley (Cambridge, MA); Richardson, Charles (Chestnut Hill, MA)

    1997-01-01T23:59:59.000Z

    Modified gene encoding a modified DNA polymerase wherein the modified polymerase incorporates dideoxynucleotides at least 20-fold better compared to the corresponding deoxynucleotides as compared with the corresponding naturally-occurring DNA polymerase.

  14. DNA polymerase having modified nucleotide binding site for DNA sequencing

    DOE Patents [OSTI]

    Tabor, S.; Richardson, C.

    1997-03-25T23:59:59.000Z

    A modified gene encoding a modified DNA polymerase is disclosed. The modified polymerase incorporates dideoxynucleotides at least 20-fold better compared to the corresponding deoxynucleotides as compared with the corresponding naturally-occurring DNA polymerase. 6 figs.

  15. ECOSMOG: An Efficient Code for Simulating Modified Gravity

    E-Print Network [OSTI]

    Baojiu Li; Gong-Bo Zhao; Romain Teyssier; Kazuya Koyama

    2011-10-06T23:59:59.000Z

    We introduce a new code, ECOSMOG, to run N-body simulations for a wide class of modified gravity and dynamical dark energy theories. These theories generally have one or more new dynamical degrees of freedom, the dynamics of which are governed by their (usually rather nonlinear) equations of motion. Solving these non-linear equations has been a great challenge in cosmology. Our code is based on the RAMSES code, which solves the Poisson equation on adaptively refined meshes to gain high resolutions in the high-density regions. We have added a solver for the extra degree(s) of freedom and performed numerous tests for the f(R) gravity model as an example to show its reliability. We find that much higher efficiency could be achieved compared with other existing mesh/grid-based codes thanks to two new features of the present code: (1) the efficient parallelisation and (2) the usage of the multigrid relaxation to solve the extra equation(s) on both the regular domain grid and refinements, giving much faster convergence even under much more stringent convergence criteria. This code is designed for performing high-accuracy, high-resolution and large-volume cosmological simulations for modified gravity and general dark energy theories, which can be utilised to test gravity and the dark energy hypothesis using the upcoming and future deep and high-resolution galaxy surveys.

  16. 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 for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasRelease Date:researchEmerging ThreatsEmployment Openings

  17. Separation of Peptide Isomers with Variant Modified Sites by...

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

    Isomers with Variant Modified Sites by High-Resolution Differential Ion Mobility Spectrometry. Separation of Peptide Isomers with Variant Modified Sites by High-Resolution...

  18. Glucose oxidase-graphene-chitosan modified electrode for direct...

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

    oxidase-graphene-chitosan modified electrode for direct electrochemistry and glucose sensing. Glucose oxidase-graphene-chitosan modified electrode for direct electrochemistry and...

  19. Disposable Carbon Nanotube Modified Screen-Printed Biosensor...

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

    Carbon Nanotube Modified Screen-Printed Biosensor for Amperometric Detection of Organophosphorus Pesticides and Nerve Disposable Carbon Nanotube Modified Screen-Printed Biosensor...

  20. A comparison of dose and dose-rate conversion factors from the Soviet Union, United Kingdom, US Department of Energy, and the Idaho National Engineering Laboratory Fusion Safety Program

    SciTech Connect (OSTI)

    Rood, A.S.; Abbott, M.L.

    1991-12-01T23:59:59.000Z

    Several independent data sets of radiological dose and dose-rate conversion factors (DCF/DRCF) have been tabulated or developed by the international community both for fission and fusion safety purposes. This report compares sets from the US Department of Energy, the Soviet Union, and the United Kingdom with those calculated by the Idaho National Engineering Laboratory Fusion Safety Program. The objectives were to identify trends and potential outlying values for specific radionuclides and contribute to a future benchmark evaluation of the CARR computer code. Fifty-year committed effective dose equivalent factors were compared for the inhalation and ingestion pathways. External effective dose equivalent rates were compared for the air immersion and ground surface exposure pathways. Comparisons were made by dividing dose factors in the different data bases by the values in the FSP data base. Differences in DCF/DRCF values less than a factor of 2 were considered to be in good agreement and are likely due to the use of slightly different decay data, variations in the number of organs considered for calculating CEDE, and rounding errors. DCF/DRCF values that differed by greater than a factor of 10 were considered to be significant. These differences are attributed primarily to the use of different radionuclide decay data, selection and nomenclature for different isomeric states, treatment of progeny radionuclides, differences in calculational methodology, and assumptions on a radionuclide's chemical form.

  1. A comparison of dose and dose-rate conversion factors from the Soviet Union, United Kingdom, US Department of Energy, and the Idaho National Engineering Laboratory Fusion Safety Program

    SciTech Connect (OSTI)

    Rood, A.S.; Abbott, M.L.

    1991-12-01T23:59:59.000Z

    Several independent data sets of radiological dose and dose-rate conversion factors (DCF/DRCF) have been tabulated or developed by the international community both for fission and fusion safety purposes. This report compares sets from the US Department of Energy, the Soviet Union, and the United Kingdom with those calculated by the Idaho National Engineering Laboratory Fusion Safety Program. The objectives were to identify trends and potential outlying values for specific radionuclides and contribute to a future benchmark evaluation of the CARR computer code. Fifty-year committed effective dose equivalent factors were compared for the inhalation and ingestion pathways. External effective dose equivalent rates were compared for the air immersion and ground surface exposure pathways. Comparisons were made by dividing dose factors in the different data bases by the values in the FSP data base. Differences in DCF/DRCF values less than a factor of 2 were considered to be in good agreement and are likely due to the use of slightly different decay data, variations in the number of organs considered for calculating CEDE, and rounding errors. DCF/DRCF values that differed by greater than a factor of 10 were considered to be significant. These differences are attributed primarily to the use of different radionuclide decay data, selection and nomenclature for different isomeric states, treatment of progeny radionuclides, differences in calculational methodology, and assumptions on a radionuclide`s chemical form.

  2. Electrical and Production Load Factors

    E-Print Network [OSTI]

    Sen, T.; Heffington, W. M.

    88 96 104 112 120 128 136 144 152 160 168 Operating Hours per Week R e l a t i v e F r e q ue nc y ESL-IE-09-05-31 Proceedings of the Thirty-First Industrial Energy Technology Conference, New Orleans, LA, May 12-15, 2009 The hours in the database... instead of billing hours. Equation 2 was modified as shown in Equation 4 to use the annual values from the IAC database. ESL-IE-09-05-31 Proceedings of the Thirty-First Industrial Energy Technology Conference, New Orleans, LA, May 12-15, 2009 anoh...

  3. Modified Entropic Gravitation in Superconductors

    E-Print Network [OSTI]

    Clovis Jacinto de Matos

    2011-08-19T23:59:59.000Z

    Verlinde recently developed a theoretical account of gravitation in terms of an entropic force. The central element in Verlinde's derivation is information and its relation with entropy through the holographic principle. The application of this approach to the case of superconductors requires to take into account that information associated with superconductor's quantum vacuum energy is not stored on Planck size surface elements, but in four volume cells with Planck-Einstein size. This has profound consequences on the type of gravitational force generated by the quantum vacuum condensate in superconductors, which is closely related with the cosmological repulsive acceleration responsible for the accelerated expansion of the Universe. Remarkably this new gravitational type force depends on the level of breaking of the weak equivalence principle for cooper pairs in a given superconducting material, which was previously derived by the author starting from similar principles. It is also shown that this new gravitational force can be interpreted as a surface force. The experimental detection of this new repulsive gravitational-type force appears to be challenging.

  4. Monthly energy review, October 1995

    SciTech Connect (OSTI)

    NONE

    1995-10-25T23:59:59.000Z

    This is the June report by the Energy Information Administration. The contents of the report include an energy overview, energy consumption, petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, and international energy. Included are appendices containing thermal conversion factors, metric and other physical conversion factors, and carbon dioxide emission factors for coal.

  5. Monthly energy review, June 1995

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    This is the June report by the Energy Information Administration. The contents of the report include an energy overview, energy consumption, petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, and international energy. Included are appendices containing thermal conversion factors, metric and other physical conversion factors, and carbon dioxide emission factors for coal.

  6. Astrophysical S(E) factor of the (15)N(p, alpha)(12)C reaction at sub-Coulomb energies via the Trojan horse method

    E-Print Network [OSTI]

    La Cognata, M.; Romano, S.; Spitaleri, C.; Cherubini, S.; Crucilla, V.; Gulino, M.; Lamia, L.; Pizzone, R. G.; Tumino, A.; Tribble, Robert E.; Fu, Changbo; Goldberg, V. Z.; Mukhamedzhanov, A. M.; Schmidt, D.; Tabacaru, G.; Trache, L.; Irgaziev, B. F.

    2007-01-01T23:59:59.000Z

    -off-energy-shell resonant R-matrix method that takes into account off-energy-shell effects and initial- and final-state interactions. In particular it has been shown that inclusion of Coulomb (15)N-d scattering and off-shell effects do not affect the determination...

  7. Energy

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling CorpNew 1325.8.Enaineer;/:4,4 (; ...) "..

  8. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, E.M.; Chang, C.; Bleecker, A.B.

    1997-11-18T23:59:59.000Z

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype. 31 figs.

  9. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, E.M.; Chang, C.; Bleecker, A.B.

    1998-10-20T23:59:59.000Z

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype. 67 figs.

  10. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, Elliott M. (Pasadena, CA); Chang, Caren (Pasadena, CA); Bleecker, Anthony B. (Madison, WI)

    1997-01-01T23:59:59.000Z

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype.

  11. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, Elliot M. (Pasadena, CA); Chang, Caren (Pasadena, CA); Bleecker, Anthony B. (Madison, WI)

    1998-01-01T23:59:59.000Z

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype.

  12. Opportunities for Energy Efficiency and Automated Demand Response in Industrial Refrigerated Warehouses in California

    E-Print Network [OSTI]

    Lekov, Alex

    2009-01-01T23:59:59.000Z

    in significant energy and demand savings for refrigeratedbe modified to reduce energy demand during demand responsein refrigerated warehouse energy demand if they are not

  13. 2011 Guidelines to Defra / DECC's GHG Conversion Factors for Company Reporting Produced by AEA for the Department of Energy and Climate Change (DECC)

    E-Print Network [OSTI]

    that allows the global warming potential of different GHGs to be compared. Values for CH4 and N2O are presented as CO2 equivalents (CO2e) using Global Warming Potential (GWP) factors*, consistent with reporting resulting from electricity supplied to the consumer that are counted in both Scope 2 (electricity GENERATED

  14. Apportionment of ambient primary and secondary fine particulate matter at the Pittsburgh National Energy Laboratory particulate matter characterization site using positive matrix factorization and a potential source contributions function analysis

    SciTech Connect (OSTI)

    Donald V. Martello; Natalie J. Pekney; Richard R. Anderson (and others) [U.S. Department of Energy, Pittsburgh, PA (United States). National Energy Technology Laboratory

    2008-03-15T23:59:59.000Z

    Fine particulate matter (PM2.5) concentrations associated with 202 24-hr samples collected at the National Energy Technology Laboratory particulate matter characterization site in south Pittsburgh from October 1999 through September 2001 were used to apportion PM2.5 into primary and secondary contributions using Positive Matrix Factorization (PMF2). Input included the concentrations of PM2.5 mass determined with a Federal Reference Method (FRM) sampler, semi-volatile PM2.5 organic material, elemental carbon (EC), and trace element components of PM2.5. A total of 11 factors were identified. The results of potential source contributions function analysis using PMF2 factors and HYSPLIT-calculated back-trajectories were used to identify those factors associated with specific meteorological transport conditions. The 11 factors were identified as being associated with emissions from various specific regions and facilities including crustal material, gasoline combustion, diesel combustion, and three nearby sources high in trace metals. Three sources associated with transport from coal-fired power plants to the southeast, a combination of point sources to the northwest, and a steel mill and associated sources to the west were identified. In addition, two secondary-material-dominated sources were identified, one was associated with secondary products of local emissions and one was dominated by secondary ammonium sulfate transported to the NETL site from the west and southwest. Of these 11 factors, the four largest contributors to PM2.5 were the secondary transported material, local secondary material, diesel combustion emissions, and gasoline combustion emissions. 26 refs., 10 figs., 1 tab.

  15. Electrochemical apparatus comprising modified disposable rectangular cuvette

    DOE Patents [OSTI]

    Dattelbaum, Andrew M; Gupta, Gautam; Morris, David E

    2013-09-10T23:59:59.000Z

    Electrochemical apparatus includes a disposable rectangular cuvette modified with at least one hole through a side and/or the bottom. Apparatus may include more than one cuvette, which in practice is a disposable rectangular glass or plastic cuvette modified by drilling the hole(s) through. The apparatus include two plates and some means of fastening one plate to the other. The apparatus may be interfaced with a fiber optic or microscope objective, and a spectrometer for spectroscopic studies. The apparatus are suitable for a variety of electrochemical experiments, including surface electrochemistry, bulk electrolysis, and flow cell experiments.

  16. Modified discrete random walk with absorption

    E-Print Network [OSTI]

    Theo van Uem

    2009-03-02T23:59:59.000Z

    We obtain expected number of arrivals, probability of arrival, absorption probabilities and expected time before absorption for a modified discrete random walk on the (sub)set of integers. In a [pqrs] random walk the particle can move one step forward or backward, stay for a moment in the same state or it can be absorbed immediately in the current state. M[pqrs] is a modified version, where probabilities on both sides of a multiple function barrier M are of different [pqrs] type.

  17. Holographic reconstruction of $f(G)$ Gravity for scale factors pertaining to Emergent, Logamediate and Intermediate scenarios

    E-Print Network [OSTI]

    Abdul Jawad; Antonio Pasqua; Surajit Chattopadhyay

    2014-05-04T23:59:59.000Z

    In this paper, we reconstruct the holographic dark energy in the framework of $f(G)$ modified theory of gravity, where $G$ is Gauss-Bonnet invariant. In this context, we choose the infrared cut-off as Granda-Oliveros cut-off which is proportional to the Hubble parameter $H$ and its first derivative with respect to the cosmic time $t$. We reconstruct $f(G)$ model with the inclusion of HDE and three well-known forms of the scale factor $a(t)$, i.e. the emergent, the logamediate and the intermediate scale factors. The reconstructed model as well as equation of state parameter are discussed numerically with the help of graphical representation to explore the accelerated expansion of the universe. Moreover, the stability of the models incorporating all the scale factors is checked through squared speed of sound $v_s^2$.

  18. Compilation of Diversity Factors and Schedules for Energy and Cooling Load Calculations, Phase II Report - Identified Relevant Data Sets, Methods, and Variability Analysis

    E-Print Network [OSTI]

    Abushakra, B.; Haberl, J. S.; Claridge, D. E.

    1999-01-01T23:59:59.000Z

    for classifying the Office building categories; (3) the relevant methods for daytyping necessary for creating the typical load shapes for energy and cooling load calculation; (4) the relevant robust variability (uncertainty) analysis; (5) typical load shapes...

  19. Compilation of Diversity Factors and Schedules for Energy and Cooling Load Calculations, ASHRAE Research Project 1093, Preliminary Report, Literature Review and Database Search

    E-Print Network [OSTI]

    Abushakra, B.; Haberl, J. S.; Claridge, D. E.

    buildings). This study provides some guidelines as to what to look for in the current database search. Wall et al. (1984) presented an extensive data collection effort for new energy-efficient commercial buildings, in a continuing systematic... and refrigerators on the peak day, (3) to determine the effect of substituting more energy efficient ACs and refrigerators, and (4) to attempt to develop a model for estimating end-use profiles based on total load and demographic data without the need for end...

  20. A New Model of Nonlocal Modified Gravity

    E-Print Network [OSTI]

    Ivan Dimitrijevic; Branko Dragovich; Jelena Grujic; Zoran Rakic

    2014-11-18T23:59:59.000Z

    We consider a new modified gravity model with nonlocal term of the form $R^{-1} \\mathcal{F}(\\Box) R. $ This kind of nonlocality is motivated by investigation of applicability of a few unusual ans\\"atze to obtain some exact cosmological solutions. In particular, we find attractive and useful quadratic ansatz $\\Box R = q R^{2}.$

  1. Modified 2/11/2003 PATENT CERTIFICATION

    E-Print Network [OSTI]

    Pennycook, Steve

    DOE/ORO Modified 2/11/2003 PATENT CERTIFICATION Interim Certification Subcontractor Final and disclosing subject inventions as required by the patent clause of the subcontract have been followed. The completion date of this Subcontract is as follows: . The following period is covered by this patent

  2. Organic electroanalysis with chemically modified electrodes

    SciTech Connect (OSTI)

    Guadalupe, A.R.; Abruna, H.D.

    1986-01-01T23:59:59.000Z

    The analytical utility of electrodes modified with functionalized polymer films for the determination of aromatic amines is demonstrated. The analysis is based on the preconcentration of the protonated amines into a functionalized polymer film that contains styrene sulfonate groups. Good sensitivity and high reproducibility were obtained for concentrations down to 10/sup -5/ M. Aliphatic amines do not interfere in the determination.

  3. Reconstruction of Einstein-Aether Gravity from other Modified Gravity Models

    E-Print Network [OSTI]

    Chayan Ranjit; Ujjal Debnath

    2014-09-08T23:59:59.000Z

    We briefly describe the modified Friedmann equations for Einstein-Aether gravity theory and we find the effective density and pressure. The purpose of our present work is to reconstruction of Einstein-Aether Gravity from other modified gravities like $f(T)$, $f(R)$, $f(G)$, $f(R,T)$ and $f(R,G)$ and check its viability. The scale factor is chosen in power law form. The free function $F(K)$ for Einstein-Aether gravity (where $K$ is proportional to $H^{2}$) have been found in terms for $K$ by the correspondence between Einstein-Aether gravity and other modified gravities and the nature of $F(K)$ vs $K$ have been shown graphically for every cases. Finally, we analyzed the stability of each reconstructed Einstein-Aether gravity model.

  4. 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 Your Destiny:RevisedAdvisory Board Contributions EMEM RecoveryManagement'sJuneAprilEMS U.S.

  5. 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. DOEThe Bonneville Power AdministrationField Campaign:INEAWater UseCElizabethTwoJaniceEnerG2Energetics of Hydrogen .M

  6. Education Toolbox Search | Department of Energy

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

    capillary water in the soil, and then modify their designs to be more efficient. http:energy.goveereeducationdownloadssurvival-still Download What Does the Sun Give Us? (5...

  7. Monthly energy review, December 1998

    SciTech Connect (OSTI)

    NONE

    1998-12-01T23:59:59.000Z

    Sections of this report include the following: Energy overview; Energy consumption; Petroleum; Natural gas; Oil and gas resource development; Coal; Electricity; Nuclear energy; Energy prices; and International energy. Appendices contain thermal conversion factors, metric and other physical conversion factors, carbon dioxide emission factors for coal, list of feature articles that have appeared since 1994, and a glossary.

  8. European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2BO.3.1 ELECTRON AND HOLE MOBILITY REDUCTION AND HALL FACTOR IN PHOSPHORUS-

    E-Print Network [OSTI]

    25th European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2BO.3.1 1 of Engineering, The Australian National University, Canberra, ACT 0200, Australia 2 Department of Electronic Materials Engineering, The Australian National University, Canberra ACT 0200, Australia 3 Institut für

  9. Astrophysical S(E) factor of the (15)N(p, alpha)(12)C reaction at sub-Coulomb energies via the Trojan horse method 

    E-Print Network [OSTI]

    La Cognata, M.; Romano, S.; Spitaleri, C.; Cherubini, S.; Crucilla, V.; Gulino, M.; Lamia, L.; Pizzone, R. G.; Tumino, A.; Tribble, Robert E.; Fu, Changbo; Goldberg, V. Z.; Mukhamedzhanov, A. M.; Schmidt, D.; Tabacaru, G.; Trache, L.; Irgaziev, B. F.

    2007-01-01T23:59:59.000Z

    The low-energy bare-nucleus cross section for (15)N(p, alpha)(12)C is extracted by means of the Trojan horse method applied to the (2)H((15)N,alpha(12)C)n reaction at E(beam) = 60 MeV. For the first time we applied the ...

  10. Apportionment of ambient primary and secondary fine particulate matter at the Pittsburgh National Energy Laboratory particulate matter characterization site using positive matrix factorization and a potential source contributions function analysis

    SciTech Connect (OSTI)

    Martello, D.V.; Pekney, N.J.; Anderson, R.R.; Davidson, C.I. (Carnegie Mellon U., Pittsburgh, PA); Hopke, P.K. (Clarkson University, Potsdam, NY); Kim, E. (Clarkson University, Potsdam, NY); Christensen, W.F. (Brigham Young Univ., Provo, UT); Mangelson, N.F. (Brigham Young Univ., Provo, UT); Eatough, D.J. (Brigham Young Univ., Provo, UT)

    2008-03-01T23:59:59.000Z

    Fine particulate matter (PM2.5) concentrations associated with 202 24-hr samples collected at the National Energy Technology Laboratory (NETL) particulate matter (PM) characterization site in south Pittsburgh from October 1999 through September 2001 were used to apportion PM2.5 into primary and secondary contributions using Positive Matrix Factorization (PMF2). Input included the concentrations of PM2.5 mass determined with a Federal Reference Method (FRM) sampler, semi-volatile PM2.5 organic material, elemental carbon (EC), and trace element components of PM2.5. A total of 11 factors were identified. The results of potential source contributions function (PSCF) analysis using PMF2 factors and HYSPLIT-calculated back-trajectories were used to identify those factors associated with specific meteorological transport conditions. The 11 factors were identified as being associated with emissions from various specific regions and facilities including crustal material, gasoline combustion, diesel combustion, and three nearby sources high in trace metals. Three sources associated with transport from coal-fired power plants to the southeast, a combination of point sources to the northwest, and a steel mill and associated sources to the west were identified. In addition, two secondary-material-dominated sources were identified, one was associated with secondary products of local emissions and one was dominated by secondary ammonium sulfate transported to the NETL site from the west and southwest. Of these 11 factors, the four largest contributors to PM2.5 were the secondary transported material (dominated by ammonium sulfate) (47%), local secondary material (19%), diesel combustion emissions (10%), and gasoline combustion emissions (8%). The other seven factors accounted for the remaining 16% of the PM2.5 mass. The findings are consistent with the major source of PM2.5 in the Pittsburgh area being dominated by ammonium sulfate from distant transport and so decoupled from local activity emitting organic pollutants in the metropolitan area. In contrast, the major local secondary sources are dominated by organic material.

  11. Apportionment of ambient primary and secondary fine particulate matter at the Pittsburgh National Energy Laboratory particulate matter characterization site using positive matrix factorization and a potential source contributions function analysis

    SciTech Connect (OSTI)

    Martello, DV [Martello, Donald V.; Pekney, NJ [Pekney, Natalie J.; Anderson, RR [Anderson, Richard; R,; Davidson, CI [Davidson, Cliff I.; Hopke, PK [Hopke, Philip K.; Kim, E [Kim, Eugene; Christensen, WF; (Christensen, William F.); Mangelson, NF [Mangelson, Nolan F.; Eatough, DJ [Eatough, Delbert J.

    2008-03-01T23:59:59.000Z

    Fine particulate matter (PM2.5) concentrations associated with 202 24-hr amples collected at the National Energy Technology Laboratory (NETL) particulate matter (PM) characterization site in south Pittsburgh from October 1999 through September 2001 were used to apportion PM2.5 into primary and secondary contributions using Positive Matrix Factorization (PMF2). Input included the concentrations of PM2.5 mass determined with a Federal Reference Method (FRM) sampler, semi-volatile PM2.5, organic material, elemental carbon (EC), and trace element components of PM2.5. A total of 11 factors were identified. The results of potential source contributions function (PSCF) analysis using PMF2 factors and HYSPLIT-calculated back-trajectories were used to identify those factors associated with specific meteorological transport conditions. The 11 factors were identified as being associated with emissions from various specific regions and facilities including crustal material, gasoline combustion, diesel combustion, and three nearby sources high in trace metals. Three sources associated with transport from coal-fired power plants to the southeast, a combination of point sources to the northwest, and a steel mill and associated sources to the west were identified. In addition, two secondary-material-dominated sources were identified, one was associated with secondary products of local emissions and one was dominated by secondary ammonium sulfate transported to the NETL site from the west and southwest. Of these 11 factors, the four largest contributors to PM2.5, were the secondary transported material (dominated by ammonium sulfate) (47%), local secondary material (19%), diesel combustion emissions (10%), and gasoline combustion emissions (8%). The other seven factors accounted for the remaining 16% of the PM2.5 mass. The findings are consistent with the major source of PM2.5 in the Pittsburgh area being dominated by ammonium sulfate from distant transport and so decoupled from local activity emitting organic pollutants in the metropolitan area. In contrast, the major local secondary sources are dominated by organic material.

  12. Apportionment of Ambient Primary and Secondary Fine Particulate Matter at the Pittsburgh National Energy Laboratory Particulate Matter Characterization Site Using Positive Matrix Factorization and a Potential Source Contributions Function Analysis

    SciTech Connect (OSTI)

    Martello, Donald [National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); Pekney, Natalie [National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); Anderson, Richard [National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States); Davidson, Cliff [Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA; Hopke, Philip [Clarkson Univ., Potsdam, NY (United States). Center for Air Resources Engineering and Science, and Dept. of Chemical Engineering; Kim, Eugene [Clarkson Univ., Potsdam, NY (United States). Center for Air Resources Engineering and Science, and Dept. of Chemical Engineering; Christensen, William [Brigham Young Univ., Provo, UT (United States). Dept. of Statistics; Mangelson, Nolan [Brigham Young Univ., Provo, UT (United States). Dept. of Chemistry and Biochemistry; Eatough, Delbert [Brigham Young Univ., Provo, UT (United States). Dept. of Chemistry and Biochemistry

    2008-03-01T23:59:59.000Z

    Fine particulate matter (PM2.5) concentrations associated with 202 24-hr samples collected at the National Energy Technology Laboratory (NETL) particulate matter (PM) characterization site in south Pittsburgh from October 1999 through September 2001 were used to apportion PM2.5 into primary and secondary contributions using Positive Matrix Factorization (PMF2). Input included the concentrations of PM2.5 mass determined with a Federal Reference Method (FRM) sampler, semi-volatile PM2.5, organic material, elemental carbon (EC), and trace element components of PM2.5. A total of 11 factors were identified. The results of potential source contributions function (PSCF) analysis using PMF2 factors and HYSPLIT-calculated back-trajectories were used to identify those factors associated with specific meteorological transport conditions. The 11 factors were identified as being associated with emissions from various specific regions and facilities including crustal material, gasoline combustion, diesel combustion, and three nearby sources high in trace metals. Three sources associated with transport from coal-fired power plants to the southeast, a combination of point sources to the northwest, and a steel mill and associated sources to the west were identified. In addition, two secondary-material-dominated sources were identified, one was associated with secondary products of local emissions and one was dominated by secondary ammonium sulfate transported to the NETL site from the west and southwest. Of these 11 factors, the four largest contributors to PM2.5, were the secondary transported material (dominated by ammonium sulfate) (47%), local secondary material (19%), diesel combustion emissions (10%), and gasoline combustion emissions (8%). The other seven factors accounted for the remaining 16% of the PM2.5 mass. The findings are consistent with the major source of PM2.5 in the Pittsburgh area being dominated by ammonium sulfate from distant transport and so decoupled from local activity emitting organic pollutants in the metropolitan area. In contrast, the major local secondary sources are dominated by organic material.

  13. MODIFIED EQUIPARTITION CALCULATION FOR SUPERNOVA REMNANTS. CASES ? = 0.5 AND ? = 1

    SciTech Connect (OSTI)

    Arbutina, B.; Uroševi?, D.; Vu?eti?, M. M.; Pavlovi?, M. Z. [Department of Astronomy, Faculty of Mathematics, University of Belgrade, Studentski trg 16, 11000 Belgrade (Serbia); Vukoti?, B., E-mail: arbo@math.rs [Astronomical Observatory, Volgina 7, 11060 Belgrade 38 (Serbia)

    2013-11-01T23:59:59.000Z

    The equipartition or minimum energy calculation is a well-known procedure for estimating the magnetic field strength and the total energy in the magnetic field and cosmic ray particles by using only the radio synchrotron emission. In one of our previous papers, we have offered a modified equipartition calculation for supernova remnants (SNRs) with spectral indices 0.5 < ? < 1. Here we extend the analysis to SNRs with ? = 0.5 and ? = 1.

  14. Guidance Regarding Refinancing, Restructuring, or Modifying Loan...

    Office of Environmental Management (EM)

    (collectively called a "debt modification") entered into by an Energy Services Company (ESCO) under federal Energy Savings Performance Contracts (ESPCs). In considering the impact...

  15. Modified Newton's law, braneworlds, and the gravitational quantum well

    E-Print Network [OSTI]

    F. Buisseret; B. Silvestre-Brac; V. Mathieu

    2007-01-18T23:59:59.000Z

    Most of the theories involving extra dimensions assume that only the gravitational interaction can propagate in them. In such approaches, called brane world models, the effective, 4-dimensional, Newton's law is modified at short as well as at large distances. Usually, the deformation of Newton's law at large distances is parametrized by a Yukawa potential, which arises mainly from theories with compactified extra dimensions. In many other models however, the extra dimensions are infinite. These approaches lead to a large distance power-law deformation of the gravitational newtonian potential $V_N(r)$, namely $V(r)=(1+k_b/r^b)V_N(r)$, which is less studied in the literature. We investigate here the dynamics of a particle in a gravitational quantum well with such a power-law deformation. The effects of the deformation on the energy spectrum are discussed. We also compare our modified spectrum to the results obtained with the GRANIT experiment, where the effects of the Earth's gravitational field on quantum states of ultra cold neutrons moving above a mirror are studied. This comparison leads to upper bounds on $b$ and $k_b$.

  16. Black Hole Thermodynamics in Modified Gravity

    E-Print Network [OSTI]

    Jonas R. Mureika; John W. Moffat; Mir Faizal

    2015-03-03T23:59:59.000Z

    We analyze the thermodynamics of a non-rotating and rotating black hole in a modified theory of gravity that includes scalar and vector modifications to general relativity, which results in a modified gravitational constant $G = G_N(1+\\alpha)$ and a new gravitational charge $Q = \\sqrt{\\alpha G_N}M$. The influence of the parameter $\\alpha$ alters the non-rotating black hole's lifetime, temperature and entropy profiles from the standard Schwarzschild case. The thermodynamics of a rotating black hole is analyzed and it is shown to possess stable, cold remnants. The thermodynamic properties of a vacuum solution regular at $r=0$ are investigated and the solution without a horizon called a "gray hole" is not expected to possess an information loss problem.

  17. Examination of the factors and issues for an environmental technology utilization partnership between the private sector and the Department of Energy. Final report

    SciTech Connect (OSTI)

    Brouse, P.

    1997-05-01T23:59:59.000Z

    The Department of Energy (DOE) held a meeting on November 12, 1992 to evaluate the DOE relations with industry and university partners concerning environmental technology utilization. The goal of this meeting was to receive feedback from DOE industry and university partners for the identification of opportunities to improve the DOE cooperative work processes with the private sector. The meeting was designed to collect information and to turn that information into action to improve private sector partnerships with DOE.

  18. Modified Newtonian dynamics from acceleration fluctuations

    E-Print Network [OSTI]

    Thomas F. Jordan

    2004-02-16T23:59:59.000Z

    A speculative mathematical model is used to generate the modified Newtonian dynamics called MOND from fluctuations of the number of quanta of quantized acceleration. The one new parameter can be chosen either to make the transition to modification comparable to that obtained from the functions used to fit data with MOND, or to make the modification at larger accelerations comparable in magnitude to the unexplained accelerations of Pioneer 10 and 11.

  19. Modified Empirical Parametrization of Fragmentation Cross Sections

    E-Print Network [OSTI]

    K. Sümmerer; B. Blank

    1999-11-17T23:59:59.000Z

    New experimental data obtained mainly at the GSI/FRS facility allow to modify the empirical parametrization of fragmentation cross sections, EPAX. It will be shown that minor modifications of the parameters lead to a much better reproduction of measured cross sections. The most significant changes refer to the description of fragmentation yields close to the projectile and of the memory effect of neutron-deficient projectiles.

  20. Characterization of electrochemically modified polycrystalline platinum surfaces

    SciTech Connect (OSTI)

    Krebs, L.C.; Ishida, Takanobu

    1991-12-01T23:59:59.000Z

    The characterization of electrochemically modified polycrystalline platinum surfaces has been accomplished through the use of four major electrochemical techniques. These were chronoamperometry, chronopotentiommetry, cyclic voltammetry, and linear sweep voltammetry. A systematic study on the under-potential deposition of several transition metals has been performed. The most interesting of these were: Ag, Cu, Cd, and Pb. It was determined, by subjecting the platinum electrode surface to a single potential scan between {minus}0.24 and +1.25 V{sub SCE} while stirring the solution, that the electrocatalytic activity would be regenerated. As a consequence of this study, a much simpler method for producing ultra high purity water from acidic permanganate has been developed. This method results in water that surpasses the water produced by pyrocatalytic distillation. It has also been seen that the wettability of polycrystalline platinum surfaces is greatly dependent on the quantity of oxide present. Oxide-free platinum is hydrophobic and gives a contact angle in the range of 55 to 62 degrees. We have also modified polycrystalline platinum surface with the electrically conducting polymer poly-{rho}-phenylene. This polymer is very stable in dilute sulfuric acid solutions, even under applied oxidative potentials. It is also highly resistant to electrochemical hydrogenation. The wettability of the polymer modified platinum surface is severely dependent on the choice of supporting electrolyte chosen for the electrochemical polymerization. Tetraethylammonium tetrafluoroborate produces a film that is as hydrophobic as Teflon, whereas tetraethylammonium perchlorate produces a film that is more hydrophilic than oxide-free platinum.

  1. How can we compare or add up our energy consumption?

    Reports and Publications (EIA)

    2012-01-01T23:59:59.000Z

    Energy in Brief article on the use of energy conversion factors to compare energy usage from different fuels.

  2. Fusion-fission reactions with modified Woods-Saxon potential

    E-Print Network [OSTI]

    Ning Wang; Kai Zhao; Werner Scheid; Xizhen Wu

    2007-12-15T23:59:59.000Z

    A modified Woods-Saxon potential model is proposed for a unified description of the entrance channel fusion barrier and the fission barrier of fusion-fission reactions based on the Skyrme energy-density functional approach. The fusion excitation functions of 120 reactions have been systematically studied. The fusion (capture) cross sections are well described with the calculated potential and an empirical barrier distribution. Incorporating a statistical model (HIVAP code) for describing the decay of the compound nucleus, the evaporation residue (and fission) cross sections of 51 fusion-fission reactions have been systematically investigated. Optimal values of some key parameters of the HIVAP code are obtained based on the experimental data of these reactions. The experimental data are reasonably well reproduced by the calculated results. The upper and lower confidence limits of the systematic errors of the calculated results are given.

  3. Modifiers of Exposure-Response Estimates for Lung Cancer among Miners Exposed to Radon Progeny

    E-Print Network [OSTI]

    Richard W. Hornung; James Deddens; Robert Roscoe

    The association between lung cancer and exposure to radon decay products has been well established. Despite agreement on this point, there is still some degree of uncertainty regarding characteristics of the exposure-response relationship. The use of studies of underground miners to estimate lung cancer risks due to residential radon exposure depends upon a better understanding of factors potentially modifying the exposure-response relationship. Given the diversity in study populations regarding smoking status, mining conditions, risk analysis methodology, and referent populations, the risk estimates across studies are quite similar. However, several factors partially contributing to differences in risk estimates are modified by attained age, time since last exposure, exposure rate, and cigarette smoking patterns. There is growing agreement across studies that relative risk decreases with attained age and time since last exposure. Several studies have also found an inverse exposure-rate effect, i.e., low exposure rates for protracted duration of exposure are more hazardous than equivalent cumulative exposures received at higher rates for shorter periods of time. Additionally, the interaction between radon exposure and cigarette smoking appears to be intermediate between additive and multiplicative in a growing number of studies. Quantitative estimates of these modifying factors are given using a new analysis of data from the latest update of the Colorado Plateau uranium miners cohort.- Environ Health Perspect 1 03(Suppl 2):49-53 (1995)

  4. Dust-shell Universe in the modified gravity scenario

    E-Print Network [OSTI]

    Michael Maziashvili

    2005-04-15T23:59:59.000Z

    The dynamics of the dust-shell model of universe is exactly solved for the modified Schwarzschild solution. This solution is used to derive the cosmology corresponding to the modified gravity.

  5. Developing energy-efficiency packages for new production homes

    SciTech Connect (OSTI)

    Brown, R.E.; Atkinson, C.S.; Warner, J.L.; Roberson, J.A.; Sanchez, M.C.; Bretz, S.E.; Koomey, J.G.

    1998-07-01T23:59:59.000Z

    The Environmental Protection Agency's ENERGY STAR{reg{underscore}sign} Homes program promotes the construction of new homes that consume at least 30% less energy than the 1993 Model Energy Code specifications for heating, cooling, and water heating end-uses, as determined using the draft National Home Energy Rating System (HERS) Guidelines. The authors developed packages of energy-efficiency measures to help production home builders in 14 US metropolitan areas meet the guidelines of this program. They evaluated the energy savings and costs of over 70 commercially available measures for the building shell and heating, cooling, and water heating equipment to optimize these packages for broad categories of new homes. The authors began by developing building prototypes for energy analysis, based on a survey of construction practices in the 14 cities. They also compiled the best published price data for the more than 70 energy-efficiency measures. They then applied the draft HERS guidelines using the DOE-2 building simulation model, to accurately estimate the energy savings for a wide variety of efficiency measures. To select cost-optimized packages of measures that meet the ENERGY STAR guidelines, they devised an automated economic model that used the building simulation results and measure cost data. This model ordered the measures by cost-effectiveness, accounting for measure interactions to avoid double-counting of energy savings. The resulting packages of measures were modified for certain locations to counting of energy savings. The resulting packages of measures were modified for certain locations to eliminate measures that builders are reluctant to adopt because of limited product availability, home buyer concerns, and other factors. The packages were also adjusted to ensure greater consistency within each city.

  6. SAFETY EVALUATION OF THE SINGLE SHELL TANKS (SST) MODIFIED SLUICING WASTE RETRIEVAL SYSTEM

    SciTech Connect (OSTI)

    SMITH, R.D.

    2005-03-21T23:59:59.000Z

    The purpose of this safety evaluation is to determine if the potential risk associated with using the single-shell tank (SST) modified sluicing system for retrieval of the 100-series SSTs in the tank farms is adequately addressed and bounded by the current tank farms safety basis (documented safety analysis [DSA]) and to determine if additional controls may be required. This safety evaluation also supports the requirement to perform a generic safety basis amendment for the retrieval of any additional SSTs (other than 241-S-112, and 241-U-107) by modified sluicing from the U.S. Department of Energy, Office of River Protection (ORP) Safety Evaluation Report (SER) 03-TED-066, ''Safety Evaluation Report (SER) for Approval of Justification for Continued Operation (JCO) for Tank Farms Single-Shell Tank (SST) Retrieval/Closure Modified Sluicing''.

  7. Dynamic shape factors for hydox-generated plutonium dioxide-type non-sperical objects 

    E-Print Network [OSTI]

    Lohaus, James Harold

    1999-01-01T23:59:59.000Z

    The dynamic shape factors of HYDOX-generated plutonium dioxide-type non-spherical objects were estimated with computational methods. Leith's empirical methods were used to modify classical Stokes's law for aerosol dynamics (1987). The dynamic shape...

  8. Organically modified silicate coatings for optical fibers A. B. Wojcik

    E-Print Network [OSTI]

    Matthewson, M. John

    Organically modified silicate coatings for optical fibers A. B. Wojcik L. C. Klein V. V. Rondinella 909 Piscataway, NJ 08855-0909 ABSTRACT Three kinds of UV-curable organically modified silicates have linked to inorganics. In particular, organically modified silicates were investigated. In the search

  9. Monthly energy review, September 1995

    SciTech Connect (OSTI)

    NONE

    1995-09-25T23:59:59.000Z

    An ``energy snapshot`` article is included on housing characteristics in 1993 (survey of 7,111 households). The rest of the document is divided into: energy overview, energy consumption, petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, international energy, and appendices (conversion factors, CO2 emission factors from coal, index, glossary).

  10. Evaluation of polyethylene-modified asphalt blends

    E-Print Network [OSTI]

    Consuegra Granger, Fernando

    1990-01-01T23:59:59.000Z

    aggregate and asphalt modified with LDPE (binder contents of 4. 8%%u and 5. 87'). 42 Table 9. Summary of statistical parameters derived from IDT testing on crushed granite mixtures bound with AC-20 + LDPE (4. 8%, and 5. 8/ binder). 46 Table 10. Summary... of creep to rupture data for crushed granite mixtures. 71 Table 11. Summary of the results of IDT repeated load fatigue testing of river gravel mixtures bound with Texaco asphalt: AC- 10, AC-10 + LDPE and AC-20. Table 12. K, ' and n, values of river...

  11. Dark Energy Generated by Warped Cosmic Strings

    E-Print Network [OSTI]

    Reinoud Jan Slagter

    2014-07-29T23:59:59.000Z

    If we live on the weak brane in a warped 5D bulk spacetime, gravitational waves and brane fluctuations can be generated by a part of the 5D Weyl tensor and carries information of the gravitational field outside the brane. We consider the U(1) self-gravitating scalar-gauge field on the warped spacetime without bulk matter. It turns out that "branons" can be formed dynamically, due to the modified energy-momentum tensor components of the cosmic string. It turns out that the parameter $\\alpha$, i.e., the gauge-to-scalar mass, changes from a value $>1$ to a value $wave energy. It is the time-dependent part of the warp factor which triggers this extraordinary behavior.

  12. Monthly energy review, March 1995

    SciTech Connect (OSTI)

    NONE

    1995-03-28T23:59:59.000Z

    This publication presents statistical data on the following topics: Energy Consumption; Petroleum; Natural Gas; Oil and Gas Resource Development; Coal; Electricity; Nuclear Energy; Energy Prices; and International Energy. Appendices are included on: Thermal Conversion Factors; Metric and Other Physical Conversion Factors; Carbon Dioxide Emission Factors for Coal. A Glossary is included.

  13. Chemically modified carbonic anhydrases useful in carbon capture systems

    DOE Patents [OSTI]

    Novick, Scott J; Alvizo, Oscar

    2013-10-29T23:59:59.000Z

    The present disclosure relates to chemically modified carbonic anhydrase polypeptides and soluble compositions, homogenous liquid formulations comprising them. The chemically modified carbonic anhydrase polypeptides have improved properties relative to the same carbonic anhydrase polypeptide that is not chemically modified including the improved properties of increased activity and/or stability in the presence of amine compounds, ammonia, or carbonate ion. The present disclosure also provides methods of preparing the chemically modified polypeptides and methods of using the chemically modified polypeptides for accelerating the absorption of carbon dioxide from a gas stream into a solution as well as for the release of the absorbed carbon dioxide for further treatment and/or sequestering.

  14. Chemically modified carbonic anhydrases useful in carbon capture systems

    DOE Patents [OSTI]

    Novick, Scott; Alvizo, Oscar

    2013-01-15T23:59:59.000Z

    The present disclosure relates to chemically modified carbonic anhydrase polypeptides and soluble compositions, homogenous liquid formulations comprising them. The chemically modified carbonic anhydrase polypeptides have improved properties relative to the same carbonic anhydrase polypeptide that is not chemically modified including the improved properties of increased activity and/or stability in the presence of amine compounds, ammonia, or carbonate ion. The present disclosure also provides methods of preparing the chemically modified polypeptides and methods of using the chemically modified polypeptides for accelerating the absorption of carbon dioxide from a gas stream into a solution as well as for the release of the absorbed carbon dioxide for further treatment and/or sequestering.

  15. The rapidity and centrality dependence of nuclear modification factors at RHIC - what does bulk particle production tell us about the nuclear medium?

    E-Print Network [OSTI]

    B. H. Samset; for the BRAHMS Collaboration

    2004-03-31T23:59:59.000Z

    The BRAHMS experiment at RHIC has measured the production of charged hadrons as a function of pseudorapidity and transverse momentum in Au+Au, d+Au and p+p collisions at a common energy of sqrt(s_NN)=200GeV, and from these spectra we construct the nuclear modification factors for both ``hot'' and ``cold'' nuclear matter. In this contribution I will show how these factors evolve with pseudorapidity and collision centrality. We see a Cronin-like enhancement in d+Au collisions at midrapidity, going to a strong suppression at eta >= 2. In central Au+Au collisions we find a suppression both at mid- and forward rapidities that vanishes for peripheral collisions. We interpret this as signs of several different medium related effects modifying bulk particle production in Au+Au and d+Au collisions at RHIC energies.

  16. Smart Energy

    E-Print Network [OSTI]

    Morrison, W.

    2012-01-01T23:59:59.000Z

    Email ? Web Portal ? Gadget ? Energy Monitor ? Mobile/Text Alerts ? Pricing Plans ? Payment Plans ? Solar Leasing ? Home Services 21 Convenience: Thermostats/Controllers ? 2012 Reliant Proprietary and Confidential Information ?WiFi / Zig...Bee ?WiFi ?Demand Response 3M Computime Thermostat with EcoFactor ?WiFi ?GPS Proximity Control Allure Energy ?WiFi ?Learning NEST Learning Thermostat Reliant e-Sense? Ideal Temp program with EcoFactor - an easy solution that lets you control...

  17. High energy hadron-hadron collisions

    SciTech Connect (OSTI)

    Chou, T.T.

    1991-12-01T23:59:59.000Z

    Results of a study on high energy collision with the geometrical model are summarized in three parts: (1) the elastic hadron-hadron collision, (2) the inelastic hadron-hadron collision, and (3) the e{sup +}e{sup {minus}} annihilation. More recent studies are highlighted below. For elastic scattering, a modified form for the hadronic matter form factor of the proton was proposed which remains to be dipole in form but contains an energy-dependent range parameter. This new expression of the opacity function fits the elastic {bar p}p scattering very well from the ISR to S{bar p}pS energies. Extrapolation of this theory also yielded results in good agreement with the {bar p}p differential cross section measured at the Tevatron. For inelastic hadron-hadron collisions, we have made a systematic investigation of the single-particle momentum spectra in the entire S{bar p}pS energy region. Results are useful for the extrapolation of angular distribution to the higher SSC energies. In e{sup +}e{sup {minus}} annihilation, a detailed analysis of all available experimental multiplicity data from PETRA to LEP energies has been performed. We discovered that the cluster size of emitted hadrons increases steadily with energy and is close to 2 as we predicted.

  18. Boron modified molybdenum silicide and products

    DOE Patents [OSTI]

    Meyer, Mitchell K. (Idaho Falls, ID); Akinc, Mufit (Ames, IA)

    1999-02-02T23:59:59.000Z

    A boron-modified molybdenum silicide material having the composition comprising about 80 to about 90 weight % Mo, about 10 to about 20 weight % Si, and about 0.1 to about 2 weight % B and a multiphase microstructure including Mo.sub.5 Si.sub.3 phase as at least one microstructural component effective to impart good high temperature creep resistance. The boron-modified molybdenum silicide material is fabricated into such products as electrical components, such as resistors and interconnects, that exhibit oxidation resistance to withstand high temperatures in service in air as a result of electrical power dissipation, electrical resistance heating elements that can withstand high temperatures in service in air and other oxygen-bearing atmospheres and can span greater distances than MoSi.sub.2 heating elements due to improved creep resistance, and high temperature structural members and other fabricated components that can withstand high temperatures in service in air or other oxygen-bearing atmospheres while retaining creep resistance associated with Mo.sub.5 Si.sub.3 for structural integrity.

  19. Boron modified molybdenum silicide and products

    DOE Patents [OSTI]

    Meyer, M.K.; Akinc, M.

    1999-02-02T23:59:59.000Z

    A boron-modified molybdenum silicide material is disclosed having the composition comprising about 80 to about 90 weight % Mo, about 10 to about 20 weight % Si, and about 0.1 to about 2 weight % B and a multiphase microstructure including Mo{sub 5}Si{sub 3} phase as at least one microstructural component effective to impart good high temperature creep resistance. The boron-modified molybdenum silicide material is fabricated into such products as electrical components, such as resistors and interconnects, that exhibit oxidation resistance to withstand high temperatures in service in air as a result of electrical power dissipation, electrical resistance heating elements that can withstand high temperatures in service in air and other oxygen-bearing atmospheres and can span greater distances than MoSi{sub 2} heating elements due to improved creep resistance, and high temperature structural members and other fabricated components that can withstand high temperatures in service in air or other oxygen-bearing atmospheres while retaining creep resistance associated with Mo{sub 5}Si{sub 3} for structural integrity. 7 figs.

  20. Low-income consumers, though less aware of genetically modified foods, are concerned and want labels

    E-Print Network [OSTI]

    King, Nicelma J.

    2003-01-01T23:59:59.000Z

    sentiment about genetically modified food. Pew Initia- tiveless aware of genetically modified foods, are concerned andattitudes about genetically modified foods have been

  1. Power Factor Compensation (PFC) Power Factor Compensation

    E-Print Network [OSTI]

    Knobloch,Jürgen

    Power Factor Compensation (PFC) Power Factor Compensation The power factor (PF) is defined as the ratio between the active power and the apparent power of a system. If the current and voltage are periodic with period , and [ ), then the active power is defined by ( ) ( ) (their inner product

  2. Associations between potentially modifiable risk factors and Alzheimer's disease: A Mendelian random

    E-Print Network [OSTI]

    Østergaard, Søren D.; Mukherjee, Shubhabrata; Sharp, Stephen J.; Proitsi, Petroula; Lotta, Luca A.; Day, Felix; Perry, John R. B.; Boehme, Kevin L.; Walter, Stefan; Kauwe, John S.; Gibbons, Laura E.; Alzheimer’s Disease Genetics Consortium; The Genetic and Environmental Risk in AD Consortium; The EPIC-InterAct consortium; Larson, Eric B.; Powell, John F.; Laugenberg, Claudia; Crane, Paul K.; Wareham, Nicholas J.; Scott, Robert A.

    2015-06-09T23:59:59.000Z

    of insulin resistance and body fat distribution in type 2 diabetes, independently of obesity. Diabetes. 2014. 16. Speliotes EK, Willer CJ, Berndt SI, Monda KL, Thorleifsson G, Jackson AU, et al. Association analyses of 249,796 individuals reveal 18 new... with autopsy-confirmed diagnosis and no clinical diagnosis, the age at death was used for age at diagnosis. For all studies, the age used for CNEs was the age of last exam or age at death for those for whom age at exam was not available. Case and CNE subjects...

  3. Evaluating Indoor Air Quality (IAQ) as Modifying Factor in Designing Public School Buildings in Jordan

    E-Print Network [OSTI]

    Ali, H. H.; Al-Momani, H.

    2004-01-01T23:59:59.000Z

    , location, which healthy symptoms did the students have; headache, Fatigue, erythematic, throat irritation, cough, nausea?etc to expect the causes. Some variables are scored by giving weight for each one ranged from 0 (min) to 5 (max), others...

  4. Identification of host cell factors required for intoxication through use of modified cholera toxin

    E-Print Network [OSTI]

    Guimaraes, Carla P.

    We describe a novel labeling strategy to site-specifically attach fluorophores, biotin, and proteins to the C terminus of the A1 subunit (CTA1) of cholera toxin (CTx) in an otherwise correctly assembled and active CTx ...

  5. Search results | Department of Energy

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

    and build a solar still to capture drinking water from the capillary water in the soil, and then modify their designs to be more efficient. http:energy.goveereeducation...

  6. Explicit symplectic multidimensional exponential fitting modified ...

    E-Print Network [OSTI]

    2012-08-30T23:59:59.000Z

    Mar 7, 2012 ... are more efficient than some well-known numerical methods appeared in the scien- ...... and the energy conservation for different methods.

  7. Nitroimidazoles as modifiers of nitrosourea pharmacokinetics

    SciTech Connect (OSTI)

    Lee, F.Y.F.; Workman, P.

    1984-09-01T23:59:59.000Z

    The effect of a number of nitroimidazole sensitizers of varying lipophilicity has been studied on the pharmacokinetics of CCNU in mice. It was found that the effectiveness of these compounds in producing pharmacokinetic effects correlated directly with their lipophilicity. The effects of MISO on the pharmacokinetics of 4 nitrosoureas of differing lipophilicity were also investigated. The plasma clearances of CCNU, BCNU and MeCCNU (high lipophilicity) were slowed by MISO whereas that of chlorozotocin (Chlz) (low lipophilicity) was unaffected. Thus, it seems that for a pharmacokinetic interaction to occur between a nitroimidazole and a nitrosourea, both the modifier and the cytotoxic agent must have a requisite degree of lipophilicity. As the same requirement appears to hold for enhancement of tumor response, these data provide further evidence that pharmacokinetic modification plays a major role in chemosensitization.

  8. Dynamical friction in modified Newtonian dynamics

    E-Print Network [OSTI]

    C. Nipoti; L. Ciotti; J. Binney; P. Londrillo

    2008-03-31T23:59:59.000Z

    We have tested a previous analytical estimate of the dynamical friction timescale in Modified Newtonian Dynamics (MOND) with fully non-linear N-body simulations. The simulations confirm that the dynamical friction timescale is significantly shorter in MOND than in equivalent Newtonian systems, i.e. systems with the same phase-space distribution of baryons and additional dark matter. An apparent conflict between this result and the long timescales determined for bars to slow and mergers to be completed in previous N-body simulations of MOND systems is explained. The confirmation of the short dynamical-friction timescale in MOND underlines the challenge that the Fornax dwarf spheroidal poses to the viability of MOND.

  9. The Magellanic Stream in Modified Newtonian Dynamics

    E-Print Network [OSTI]

    Hossein Haghi; Sohrab Rahvar; Akram Hasani-Zonooz

    2007-01-09T23:59:59.000Z

    The dynamics of the Magellanic Stream (MS) as a series of clouds extending from the Magellanic Clouds (MCs) to the south Galactic pole is affected by the distribution and the amount of matter in the Milky Way. We calculate the gravitational effect of the Galactic disk on the MS in the framework of modified Newtonian dynamics(MOND) and compare with observations of the Stream's radial velocity. We consider the tidal force of the Galaxy, which strips material from the MCs to form the MS, and, using a no-halo model of the Galaxy, we ignore the effect of the drag of the Galactic halo on the MS. We also compare the MONDian dynamics with that in logarithmic and power-law dark halo models and show that the MOND theory seems plausible for describing the dynamics of satellite galaxies such as the MCs. Finally, we perform a maximum likelihood analysis to obtain the best MOND parameters for the Galactic disk.

  10. Modified Newtonian Dynamics In Dimensionless Form

    E-Print Network [OSTI]

    W. F. Kao

    2005-04-01T23:59:59.000Z

    Modified Newtonian dynamics proposed that gravitational field needs modifications when the field strength $g$ is weaker than a critical value $g_0$. This has been shown to be a good candidate as an alternative to cosmic dark matter. There is another way to look at this theory as a length scale dependent theory. One will show that modification of the Newtonian field strength depends on the mass distribution and the coordinate scale of the system. It is useful to separate the effective gravitation field $g(r)$ into a small scale (or short-distance)$g_s$ field and a large scale (or a long-distance) $g_l$ field that should be helpful for a better understanding of the underlying physics. The effective potential is also derived.

  11. Monthly energy review, August 1995

    SciTech Connect (OSTI)

    NONE

    1995-08-24T23:59:59.000Z

    Two brief articles are presented: measuring dependence on imported oil; and preliminary estimates of household energy consumption and expenditures in 1993. Then statistical tables are presented: energy overview, energy consumption, petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, and international energy. Appendices present thermal conversion factors, metric and other physical conversion factors, CO{sub 2} emission factors for coal, and listing of previous articles. A glossary is also included.

  12. Carbon Dioxide Emission Factors for Coal

    Reports and Publications (EIA)

    1994-01-01T23:59:59.000Z

    The Energy Information Administration (EIA) has developed factors for estimating the amount of carbon dioxide emitted, accounting for differences among coals, to reflect the changing "mix" of coal in U.S. coal consumption.

  13. Power flattening on modified CANDLE small long life gas-cooled fast reactor

    SciTech Connect (OSTI)

    Monado, Fiber [Nuclear Physics and Biophysics Research Group, Dept. of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Bandung, Indonesia and Dept. of Physics, Faculty of Mathematics and Natural Sciences, Sriwijaya University (Indonesia); Su'ud, Zaki; Waris, Abdul; Basar, Khairul [Nuclear Physics and Biophysics Research Group, Dept. of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology, Bandung (Indonesia); Ariani, Menik [Dept. of Physics, Faculty of Mathematics and Natural Sciences, Sriwijaya University (Indonesia); Sekimoto, Hiroshi [CRINES, Tokyo Institute of Technology, O-okoyama, Meguro-ku, Tokyo 152-8550 (Japan)

    2014-09-30T23:59:59.000Z

    Gas-cooled Fast Reactor (GFR) is one of the candidates of next generation Nuclear Power Plants (NPPs) that expected to be operated commercially after 2030. In this research conceptual design study of long life 350 MWt GFR with natural uranium metallic fuel as fuel cycle input has been performed. Modified CANDLE burn-up strategy with first and second regions located near the last region (type B) has been applied. This reactor can be operated for 10 years without refuelling and fuel shuffling. Power peaking reduction is conducted by arranging the core radial direction into three regions with respectively uses fuel volume fraction 62.5%, 64% and 67.5%. The average power density in the modified core is about 82 Watt/cc and the power peaking factor decreased from 4.03 to 3.43.

  14. Essays on energy and environmental policy

    E-Print Network [OSTI]

    Novan, Kevin Michael

    2012-01-01T23:59:59.000Z

    1 Valuing the Wind: Renewable Energy Policies and Air Pollu-Emissions Reductions from Wind Energy: Location, Location,High-capacity factor wind energy systems, Jounal of Solar

  15. Energy-Efficiency-Related Conference Papers and Workshop Summarys

    U.S. Energy Information Administration (EIA) Indexed Site

    Home > Households, Buildings & Industry > Energy Efficiency > Conference Papers Conference Papers Page Last Modified: September 2007 The Growth in Electricity Demand in U.S....

  16. Large Scale GSHP as Alternative Energy for American Farmers Geothermal...

    Open Energy Info (EERE)

    Scale GSHP as Alternative Energy for American Farmers Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Large Scale GSHP as Alternative...

  17. Analysis of Energy, Environmental and Life Cycle Cost Reduction...

    Open Energy Info (EERE)

    Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Analysis of Energy, Environmental and Life Cycle Cost Reduction Potential of Ground Source...

  18. Method of modifying a volume mesh using sheet insertion

    DOE Patents [OSTI]

    Borden, Michael J. (Albuquerque, NM); Shepherd, Jason F. (Albuquerque, NM)

    2006-08-29T23:59:59.000Z

    A method and machine-readable medium provide a technique to modify a hexahedral finite element volume mesh using dual generation and sheet insertion. After generating a dual of a volume stack (mesh), a predetermined algorithm may be followed to modify (refine) the volume mesh of hexahedral elements. The predetermined algorithm may include the steps of locating a sheet of hexahedral mesh elements, determining a plurality of hexahedral elements within the sheet to refine, shrinking the plurality of elements, and inserting a new sheet of hexahedral elements adjacently to modify the volume mesh. Additionally, another predetermined algorithm using mesh cutting may be followed to modify a volume mesh.

  19. Neutrino Flavor Ratios Modified by Cosmic Ray Re-acceleration

    E-Print Network [OSTI]

    Kawanaka, Norita

    2015-01-01T23:59:59.000Z

    Re-acceleration of $\\pi$'s and $\\mu$'s modifies the flavor ratio at Earth (at astrophysical sources) of neutrinos produced by $\\pi$ decay, $\

  20. A globally convergent modified conjugate-gradient line-search ...

    E-Print Network [OSTI]

    Wenwen Zhou

    2009-09-23T23:59:59.000Z

    Sep 23, 2009 ... Further, we provide a new variant of modified conjugate gradient algorithms ... optimization, trust region methods, conjugate gradient method.

  1. activated carbons modified: Topics by E-print Network

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

    polymer Composite Materials Modified by Carbon Nanotube is introduced, it contains composite materials based ester, composite materials based resin matrix, composite materials...

  2. acid modified carbon: Topics by E-print Network

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

    polymer Composite Materials Modified by Carbon Nanotube is introduced, it contains composite materials based ester, composite materials based resin matrix, composite materials...

  3. activated carbon modified: Topics by E-print Network

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

    polymer Composite Materials Modified by Carbon Nanotube is introduced, it contains composite materials based ester, composite materials based resin matrix, composite materials...

  4. aqueous nickel-nitrilotriacetate modified: Topics by E-print...

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

    we examine the effective interactions introduced between the droplets of an oil in water microemulsion upon progressive addition of hydrophobically modified water soluble...

  5. Institute of Computer Science A modified limited-memory BNS ...

    E-Print Network [OSTI]

    2014-03-12T23:59:59.000Z

    Institute of Computer Science. Academy of Sciences of the Czech Republic. A modified limited-memory BNS method for unconstrained minimization based on ...

  6. arabica genetically modified: Topics by E-print Network

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

    Modified Foods and the Attack on Nature Stuart A. Newman to improve foods and other crop plants by introducing exogenous genes (experi- mental transgenesis, a type Newman,...

  7. Reducing Power Factor Cost | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 < prevQuick Guide:U.N.June 8,PastRadiationReducing LEDReducing

  8. Non-Singular Cosmology in Modified Gravity

    E-Print Network [OSTI]

    J. W. Moffat

    2007-10-24T23:59:59.000Z

    A non-singular cosmology is derived in modified gravity (MOG) with a varying gravitational coupling strength $G(t)=G_N\\xi(t)$. Assuming that the curvature $k$, the cosmological constant $\\Lambda$ and $\\rho$ vanish at $t=0$, we obtain a non-singular universe with a negative pressure, $p_G < 0$. Quantum fluctuations at $t\\sim 0$ produce creation of pairs of particles from the vacuum explaining the origin of matter. The universe expands for $t\\to \\infty$ according to the standard radiation and matter dominated solutions. The arrow of time reverses at $t=0$ always pointing in the direction of increasing entropy ${\\cal S}$ and the entropy is at a minimum value at $t=0$, solving the conundrum of the Second Law of Thermodynamics. The Hubble radius $H^{-1}(t)$ is infinite at $t=0$ removing the curvature and particle horizons. The negative pressure $p_G$ generated by the scalar field $\\xi$ at $t\\sim 0$ can produce quantum spontaneous creation of particles explaining the origin of matter and radiation.

  9. Calibration of a Modified Californium Shuffler

    SciTech Connect (OSTI)

    Sadowski, E.T.; Armstrong, F. [Westinghouse Savannah River Company, AIKEN, SC (United States); Oldham, R. [USDOE New Brunswick Lab., Argonne, IL (United States); Ceo, R.; Williams, N. [Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States)

    1995-06-01T23:59:59.000Z

    A californium shuffler originally designed to assay hollow cylindrical pieces of UA1 has been modified to assay solid cylinders. Calibration standards were characterized via chemical analysis of the molten UA1 taken during casting of the standards. The melt samples yielded much more reliable characterization data than drill samples taken from standards after the standards had solidified. By normalizing one well-characterized calibration curve to several standards at different enrichments, a relatively small number of standards was required to develop an enrichment-dependent calibration. The precision of this shuffler is 0.65%, and the typical random and systematic uncertainties are 0.53% and 0.73%, respectively, for a six minute assay of an ingot containing approximately 700 grams of {sup 235}U. This paper will discuss (1) the discrepancies encountered when UA1 standards were characterized via melt samples versus drill samples, (2) a calibration methodology employing a small number of standards, and (3) a comparison of results from a previously unused shuffler with an existing shuffler. A small number of UA1 standards have been characterized using samples from the homogeneous molten state and have yielded enrichment-dependent and enrichment-independent calibration curves on two different shufflers.

  10. Monthly Energy Review

    SciTech Connect (OSTI)

    NONE

    1996-05-28T23:59:59.000Z

    This publication presents an overview of the Energy information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. Two brief ``energy plugs`` (reviews of EIA publications) are included, as well.

  11. The PPP model of alternant cyclic polyenes with modified boundary conditions

    SciTech Connect (OSTI)

    Bendazzoli, G.L.; Evangelisti, S. [Dipartimento di Chimica Fisica ed Inorganica, Bologna (Italy)

    1995-08-15T23:59:59.000Z

    The extension of the PPP Hamiltonian for alternant cyclic polyenes to noninteger values of the pseudomomentum by imposing modified boundary conditions is discussed in detail. It is shown that a computer program for periodic boundary conditions can be easily adapted to the new boundary conditions. Full CI computations are carried out for some low-lying states of the PPP model of alternant cyclic polyenes (CH){sub N} (N even) at half-filling. The energy values obtained by using periodic (Bloch) and antiperiodic (Moebius) orbitals are used to perform energy extrapolations for N {yields} {infinity}. 38 refs., 2 figs., 5 tabs.

  12. Testing of the Modified Anomalous Diffraction Approximation with T-Matrix Calculations for Hexagonal Columns

    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 Our InstagramStructureProposedPAGESafetyTed Donat About Usof the Modified Anomalous

  13. Dose factor entry and display tool for BNCT radiotherapy

    DOE Patents [OSTI]

    Wessol, Daniel E. (Bozeman, MT); Wheeler, Floyd J. (Idaho Falls, ID); Cook, Jeremy L. (Greeley, CO)

    1999-01-01T23:59:59.000Z

    A system for use in Boron Neutron Capture Therapy (BNCT) radiotherapy planning where a biological distribution is calculated using a combination of conversion factors and a previously calculated physical distribution. Conversion factors are presented in a graphical spreadsheet so that a planner can easily view and modify the conversion factors. For radiotherapy in multi-component modalities, such as Fast-Neutron and BNCT, it is necessary to combine each conversion factor component to form an effective dose which is used in radiotherapy planning and evaluation. The Dose Factor Entry and Display System is designed to facilitate planner entry of appropriate conversion factors in a straightforward manner for each component. The effective isodose is then immediately computed and displayed over the appropriate background (e.g. digitized image).

  14. Human factors methods in DOE nuclear facilities

    SciTech Connect (OSTI)

    Bennett, C.T.; Banks, W.W. (Lawrence Livermore National Lab., CA (United States)); Waters, R.J. (Department of Energy, Washington, DC (United States))

    1993-01-01T23:59:59.000Z

    The US Department of Energy (DOE) is in the process of developing a series of guidelines for the use of human factors standards, procedures, and methods to be used in nuclear facilities. This paper discusses the philosophy and process being used to develop a DOE human factors methods handbook to be used during the design cycle. The following sections will discuss: (1) basic justification for the project; (2) human factors design objectives and goals; and (3) role of human factors engineering (HFE) in the design cycle.

  15. Structure Growth and the CMB in Modified Gravity (MOG)

    E-Print Network [OSTI]

    J. W. Moffat

    2014-09-02T23:59:59.000Z

    An important piece of evidence for dark matter is the need to explain the growth of structure from the time of horizon entry and radiation-matter equality to the formation of stars and galaxies. This cannot be explained by using general relativity without dark matter. So far, dark matter particles have not been detected in laboratory measurements or at the LHC. We demonstrate that enhanced structure growth can happen in a modified gravity theory (MOG). The vector field and particle introduced in the theory to explain galaxy and cluster dynamics plays an important role in generating the required structure growth. The particle called the phion (a light hidden photon) is neutral and is a dominant, pressureless component in the MOG Friedmann equations, before the time of decoupling. The dominant energy density of the phion particle in the early universe, generates an explanation for the growth of density perturbations. The angular acoustical power spectrum due to baryon-photon pressure waves is in agreement with the Planck 2013 data. As the universe expands and large scale structures are formed, the density of baryons dominates and the rotation curves of galaxies and the dynamics of clusters are explained in MOG, when the phion particle in the present universe is ultra-light. The matter power spectrum determined by the theory is in agreement with current galaxy redshift surveys.

  16. Additional reductions in the k-constrained modified KP hierarchy

    E-Print Network [OSTI]

    Oleksandr Chvartatskyi; Yuriy Sydorenko

    2013-12-30T23:59:59.000Z

    Additional reductions in the modified k-constrained KP hierarchy are proposed. As a result we obtain generalizations of Kaup-Broer system, Korteweg-de Vries equation and a modification of Korteweg-de Vries equation that belongs to modified k-constrained KP hierarchy. We also propose solution generating technique based on binary Darboux transformations for the obtained equations.

  17. Role of Modified Chaplygin Gas in Accelerated Universe

    E-Print Network [OSTI]

    Ujjal Debnath; Asit Banerjee; Subenoy Chakraborty

    2004-11-02T23:59:59.000Z

    In this paper we have considered a model of modified Chaplygin gas and its role in accelerating phase of the universe. We have assumed that the equation of state of this modified model is valid from the radiation era to $\\Lambda$CDM model. We have used recently developed statefinder parameters in characterizing different phase of the universe diagrammatically.

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

    E-Print Network [OSTI]

    Jahns, Jürgen

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

  19. Modified Dry Grind Ethanol Process Vijay Singh1

    E-Print Network [OSTI]

    Modified Dry Grind Ethanol Process Vijay Singh1 , Kent D. Rausch1 *, Ping Yang2 , Hosein Shapouri3-265-0697). #12;Modified Dry Grind Ethanol Process ­ University of Illinois 2 Table of Contents 1. Introductory.....................................................................................................7 3.2. Dry Grind Ethanol

  20. Geometric and Electronic Properties of Graphene Modified by “External” N-Containing Groups

    SciTech Connect (OSTI)

    Wang, Xinde; Cai, Qiuxia; Zhuang, Guilin; Zhong, Xing; Mei, Donghai; Li, Xiaonian; Wang, Jianguo

    2014-10-14T23:59:59.000Z

    By means of the first-principles spin polarized density functional theory (DFT) calculations, we investigated structures and electronic properties of “external” nitrogen-containing groups (pyridine derivatives) modified graphene via single or double bonding mode. This study of single-bond pyridine derivatives modified graphene (SBPG) shows that the ortho-carbon is the most favorable adsorption site for pyridine derivatives on graphene, as confirmed by bader charge analysis. The external stability of pyridine derivatives on graphene by [2+2] cycloaddition is caused by the match between frontier orbitals of pyridine derivatives and those of graphene, which leading to the formation of stronger chemical bonds. Interestingly, electronic structure analysis reveals that the spin-up and spin-down parts DOS of SBPG clearly split, while it is not found for double-bonds pyridine derivatives modified graphene (DBPG). This work was supported by the 973 project (2013CB733501) and the National Natural Science Foundation of China ( 21101137, 21136001, 21176221, 21306169 and 91334013). D. Mei is supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. Pacific Northwest National Laboratory (PNNL) is a multiprogram national laboratory operated for DOE by Battelle.

  1. High energy hadron-hadron collisions. Annual progress report

    SciTech Connect (OSTI)

    Chou, T.T.

    1992-12-31T23:59:59.000Z

    Results of a study on high energy collisions with the geometrical model are summarized in three parts: (1) the elastic hadron-hadron collision, (2) the inelastic hadron-hadron collision, and (3) e{sup +}e{sup {minus}} annihilation. For elastic scattering, a modified form for the hadronic matter form factor of the proton was proposed which is still dipole in form but contains an energy--dependent range parameter. This new expression of the opacity function fits the elastic {bar p}p scattering very well from the ISR to S{bar p}pS energies. Extrapolation of this theory also yielded results {bar p}p in good agreement with the {bar p}p differential cross section measured at the Tevatron. For inelastic hadron-hadron collisions, we have made a systematic investigation of the single-particle momentum spectra in the entire S{bar p}pS energy region. Results are useful for the extrapolation of angular distribution to the higher SSC energies. In e{sup +}e{sup {minus}} annihilation, a detailed analysis of all available experimental multiplicity data from PETRA to LEP energies has been performed. The cluster size of emitted hadrons increases gradually with energy. Aside from high-energy collisions, the giant fullerene molecules were studied and precise algebraic eigenvalue expressions of the Hueckel problem for carbon-240 were obtained.

  2. Modified Hamiltonian formalism for Regge Teitelboim Cosmology

    E-Print Network [OSTI]

    Pinaki Patra; Md. Raju; Gargi Manna; Jyoti Prasad Saha

    2014-12-10T23:59:59.000Z

    The Ostrogradski approach for the Hamiltonian formalism of higher derivative theory is not satisfactory because of the reason that the Lagrangian cannot be viewed as a function on the tangent bundle to coordinate manifold. In this article, we have used an alternative approach which leads directly to the Lagrangian which, being a function on the tangent manifold, gives correct equation of motion; no new coordinate variables need to be added. This approach can be directly used to the singular (in Ostrogradski sense) Lagrangian. We have used this method for the Regge Teitelboim (RT) minisuperspace cosmological model. We have obtained the Hamiltonian of the dynamical equation of the scale factor of RT model.

  3. This document is a preprint version of the final paper: M. Soshinskaya, W. H. J. Graus, J. M. Guerrero, and J. C. Vasquez, "Microgrids: experiences, barriers and success factors," Renewable and Sustainable Energy Reviews, 2014 Elsevier.

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    ; Renewable Energy; Islanding; Distributed Generation; Energy Storage; Barriers Acronyms greenhouse gas (GHG); distributed generation (DG); distributed energy resources (DER); distributed storage (DS); Distribution System production. This has led to increased implementation of distributed generation (DG) technologies, which

  4. Non-linear equation: energy conservation and impact parameter dependence

    E-Print Network [OSTI]

    Andrey Kormilitzin; Eugene Levin

    2010-09-08T23:59:59.000Z

    In this paper we address two questions: how energy conservation affects the solution to the non-linear equation, and how impact parameter dependence influences the inclusive production. Answering the first question we solve the modified BK equation which takes into account energy conservation. In spite of the fact that we used the simplified kernel, we believe that the main result of the paper: the small ($\\leq 40%$) suppression of the inclusive productiondue to energy conservation, reflects a general feature. This result leads us to believe that the small value of the nuclear modification factor is of a non-perturbative nature. In the solution a new scale appears $Q_{fr} = Q_s \\exp(-1/(2 \\bas))$ and the production of dipoles with the size larger than $2/Q_{fr}$ is suppressed. Therefore, we can expect that the typical temperature for hadron production is about $Q_{fr}$ ($ T \\approx Q_{fr}$). The simplified equation allows us to obtain a solution to Balitsky-Kovchegov equation taking into account the impact parameter dependence. We show that the impact parameter ($b$) dependence can be absorbed into the non-perturbative $b$ dependence of the saturation scale. The solution of the BK equation, as well as of the modified BK equation without $b$ dependence, is only accurate up to $\\pm 25%$.

  5. Energy States of Universe and New Phantom Energy

    E-Print Network [OSTI]

    Mahgoub Salih

    2009-06-20T23:59:59.000Z

    Energy states of the universe is obtained when the scale factor is defined as a=At^n, and n varies as -1energy, which it`s energy density increases with time while w=-1/3 .

  6. Dark Energy, or Worse

    ScienceCinema (OSTI)

    Professor Sean Carroll

    2010-01-08T23:59:59.000Z

    General relativity is inconsistent with cosmological observations unless we invoke components of dark matter and dark energy that dominate the universe. While it seems likely that these exotic substances really do exist, the alternative is worth considering: that Einstein's general relativity breaks down on cosmological scales. I will discuss models of modified gravity, tests in the solar system and elsewhere, and consequences for cosmology.

  7. Dark Energy, or Worse

    SciTech Connect (OSTI)

    Carroll, Sean (CalTech) [CalTech

    2006-11-13T23:59:59.000Z

    General relativity is inconsistent with cosmological observations unless we invoke components of dark matter and dark energy that dominate the universe. While it seems likely that these exotic substances really do exist, the alternative is worth considering: that Einstein's general relativity breaks down on cosmological scales. I will discuss models of modified gravity, tests in the solar system and elsewhere, and consequences for cosmology.

  8. High energy hadron-hadron collisions. Annual progress report

    SciTech Connect (OSTI)

    Chou, T.T.

    1991-12-01T23:59:59.000Z

    Results of a study on high energy collision with the geometrical model are summarized in three parts: (1) the elastic hadron-hadron collision, (2) the inelastic hadron-hadron collision, and (3) the e{sup +}e{sup {minus}} annihilation. More recent studies are highlighted below. For elastic scattering, a modified form for the hadronic matter form factor of the proton was proposed which remains to be dipole in form but contains an energy-dependent range parameter. This new expression of the opacity function fits the elastic {bar p}p scattering very well from the ISR to S{bar p}pS energies. Extrapolation of this theory also yielded results in good agreement with the {bar p}p differential cross section measured at the Tevatron. For inelastic hadron-hadron collisions, we have made a systematic investigation of the single-particle momentum spectra in the entire S{bar p}pS energy region. Results are useful for the extrapolation of angular distribution to the higher SSC energies. In e{sup +}e{sup {minus}} annihilation, a detailed analysis of all available experimental multiplicity data from PETRA to LEP energies has been performed. We discovered that the cluster size of emitted hadrons increases steadily with energy and is close to 2 as we predicted.

  9. ARM - Campaign Instrument - psp-eppley-modified

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492air Comments? We would love to hear from you!jpl Comments?govInstrumentsprecipiso Comments?

  10. Electrochemical Apparatus with Disposable and Modifiable Parts

    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:INEAWater Use GoalResourcesInnovationPortalandSensors,

  11. Dynamics of interacting phantom and quintessence dark energies

    E-Print Network [OSTI]

    M. Umar Farooq; Mubasher Jamil; Ujjal Debnath

    2011-04-20T23:59:59.000Z

    We present models, in which phantom energy interacts with two different types of dark energies including variable modified Chaplygin gas (VMCG) and new modified Chaplygin gas (NMCG). We then construct potentials for these cases. It has been shown that the potential of the phantom field decreases from a higher value with the evolution of the Universe.

  12. Home Energy Displays: Consumer Adoption and Response

    SciTech Connect (OSTI)

    LaMarche, J.; Cheney, K.; Akers, C.; Roth, K.; Sachs, O.

    2012-12-01T23:59:59.000Z

    The focus of this project was to investigate the factors influencing consumer adoption of Home Energy Displays (HEDs) and to evaluate electricity consumption in households with basic HEDs versus enhanced feedback methods - web portals or alerts. We hypothesized that providing flexible and relatable information to users, in addition to a basic HED, would make feedback more effective and achieve persistent energy savings. In Phase I, we conducted three user research studies and found preferences for aesthetically pleasing, easy to understand feedback that is accessible through multiple media and offered free of charge. The deployment of HEDs in 150 households planned for Phase II encountered major recruitment and HED field deployment problems. First, after extensive outreach campaigns to apartment complexes with 760 units, only 8% of building's tenants elected to receive a free HED in their homes as part of the field study. Second, the HED used, a leading market model, had a spectrum of problems, including gateway miscommunications, failure to post to a data-hosting third party, and display malfunctions. In light of these challenges, we are pursuing a modified study investigating the energy savings of a web portal versus alert-based energy feedback instead of a physical HED.

  13. Idaho Application for Permit to Construct Modify or Maintain...

    Open Energy Info (EERE)

    LibraryAdd to library Legal Document- RegulationRegulation: Idaho Application for Permit to Construct Modify or Maintain an Injection Well - Form 42-39-1Legal Published NA...

  14. Modified Ricci flow and asymptotically non-flat spaces

    E-Print Network [OSTI]

    Shubhayu Chatterjee; Narayan Banerjee

    2013-04-08T23:59:59.000Z

    The present work extends the application of a modified Ricci flow equation to an asymptotically non flat space, namely Marder's cylindrially symmetric space. It is found that the flow equation has a solution at least in a particular case.

  15. TR-031 Ecology March 2004 A modified timber cruise

    E-Print Network [OSTI]

    TR-031 Ecology March 2004 A modified timber cruise for the inventory of dead wood in Coastal-751-7001 Research Disciplines: Ecology ~ Geology ~ Geomorphology ~ Hydrology ~ Pedology ~ Silviculture ~ Wildlife 2004 Research Section, Coast Forest Region, BCMOF Research Disciplines: Ecology ~ Geology

  16. Genetically modified food and crops: perceptions of risks 

    E-Print Network [OSTI]

    Hall, Clare R.

    2010-01-01T23:59:59.000Z

    The debate around genetically modified food and crops has proved to be complex and far-reaching, involving diverse stakeholder groups and many issues. Although the extent of global uptake of GM crops has been substantial (23 countries and 114...

  17. Computing hypersurfaces which minimize surface energy plus bulk energy

    E-Print Network [OSTI]

    Sullivan, John M.

    such energies is an important step in the definition of flat curvature flows [ATW]. By modifying the bulk energy this precise by working in the context of currents, as in [ATW] or [S].) Here, if S and S0 are contained

  18. Monthly energy review

    SciTech Connect (OSTI)

    NONE

    1997-12-01T23:59:59.000Z

    This document presents an overview of the Energy Information Administration`s (EIA) recent monthly energy statistics. The statistics cover the major activities of U.S. production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors.

  19. California Energy Commission

    E-Print Network [OSTI]

    presents its audit report concerning our review of the California Energy Commission's (energy commission Recommendation 40 Response to the Audit California Energy Commission 41 #12;1 SUMMARY RESULTS IN BRIEF C oncernsCalifornia Energy Commission: Although External Factors Have Caused Delays in Its Approval of Sites

  20. Optimizing Thermoelectric Power Factor by Means of a Potential Barrier

    E-Print Network [OSTI]

    1 Optimizing Thermoelectric Power Factor by Means of a Potential Barrier Neophytos Neophytou}@iue.tuwien.ac.at Abstract Large efforts in improving thermoelectric energy conversion are devoted to energy filtering design, ~40% improvement in the thermoelectric power factor can be achieved if the following conditions

  1. Modified shielding jet model for twin-jet shielding analysis

    E-Print Network [OSTI]

    Gilbride, Jennifer Frances

    1983-01-01T23:59:59.000Z

    MODIFIED SHIELDING JET MODEL FOR TWIN-JET SHIELDING ANALYSIS A Thesis by JENNIFER FRANCES GILBRIDE Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1983 Major Subject: Mechanical Engineering MODIFIED SHIELDING JET MODEL FOR TWIN-JET SHIELDING ANALYSIS A Thesis by JENNIFER FRANCES GILBRIDE Approved as to stvle and content by: 'Carl H. Gerhold (Chairman of Committee) J. Craag Dutton...

  2. Solar System experiments do not yet veto modified gravity models

    E-Print Network [OSTI]

    Valerio Faraoni

    2006-07-05T23:59:59.000Z

    The dynamical equivalence between modified and scalar-tensor gravity theories is revisited and it is concluded that it breaks down in the limit to general relativity. A gauge-independent analysis of cosmological perturbations in both classes of theories lends independent support to this conclusion. As a consequence, the PPN formalism of scalar-tensor gravity and Solar System experiments do not veto modified gravity, as previously thought.

  3. Method for modifying trigger level for adsorber regeneration

    DOE Patents [OSTI]

    Ruth, Michael J.; Cunningham, Michael J.

    2010-05-25T23:59:59.000Z

    A method for modifying a NO.sub.x adsorber regeneration triggering variable. Engine operating conditions are monitored until the regeneration triggering variable is met. The adsorber is regenerated and the adsorbtion efficiency of the adsorber is subsequently determined. The regeneration triggering variable is modified to correspond with the decline in adsorber efficiency. The adsorber efficiency may be determined using an empirically predetermined set of values or by using a pair of oxygen sensors to determine the oxygen response delay across the sensors.

  4. The Market Effect of a Food Scare: The Case of Genetically Modified StarLink Corn

    E-Print Network [OSTI]

    Carter, Colin A.; Smith, Aaron

    2004-01-01T23:59:59.000Z

    risk from genetically modified (GM) food. We analyze theof a Food Scare: The Case of Genetically Modified StarLinkof a Food Scare: The Case of Genetically Modified StarLink

  5. Encapsulation of mixed radioactive and hazardous waste contaminated incinerator ash in modified sulfur cement

    SciTech Connect (OSTI)

    Kalb, P.D.; Heiser, J.H. III; Colombo, P.

    1990-01-01T23:59:59.000Z

    Some of the process waste streams incinerated at various Department of Energy (DOE) facilities contain traces of both low-level radioactive (LLW) and hazardous constituents, thus yielding ash residues that are classified as mixed waste. Work is currently being performed at Brookhaven National Laboratory (BNL) to develop new and innovative materials for encapsulation of DOE mixed wastes including incinerator ash. One such material under investigation is modified sulfur cement, a thermoplastic developed by the US Bureau of Mines. Monolithic waste forms containing as much as 55 wt % incinerator fly ash from Idaho national Engineering Laboratory (INEL) have been formulated with modified sulfur cement, whereas maximum waste loading for this waste in hydraulic cement is 16 wt %. Compressive strength of these waste forms exceeded 27.6 MPa. Wet chemical and solid phase waste characterization analyses performed on this fly ash revealed high concentrations of soluble metal salts including Pb and Cd, identified by the Environmental Protection Agency (EPA) as toxic metals. Leach testing of the ash according to the EPA Toxicity Characteristic Leaching Procedure (TCLP) resulted in concentrations of Pb and Cd above allowable limits. Encapsulation of INEL fly ash in modified sulfur cement with a small quantity of sodium sulfide added to enhance retention of soluble metal salts reduced TCLP leachate concentrations of Pb and Cd well below EPA concentration criteria for delisting as a toxic hazardous waste. 12 refs., 4 figs., 2 tabs.

  6. Energy Flow: A Multimodal `Ready' Indication For Electric Vehicles

    E-Print Network [OSTI]

    and current energy consumption [18]. Furthermore, factors such as regenerative braking and low noise driving

  7. India Energy Outlook: End Use Demand in India to 2020

    E-Print Network [OSTI]

    de la Rue du Can, Stephane

    2009-01-01T23:59:59.000Z

    nuclear hydro Energy output Own Uses Transmission and distribution loses Electricity delivered Primary factor The Agriculture

  8. Energy enhancement for deuteron beam fast ignition of a precompressed inertial confinement fusion target

    SciTech Connect (OSTI)

    Yang Xiaoling; Miley, George H. [Department of Nuclear, Plasma and Radiological Engineering, University of Illinois, Urbana, Illinois 61801 (United States); Flippo, Kirk A. [P-24 Plasma Physics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Hora, Heinrich [University of New South Wales, Sydney 2052 (Australia)

    2011-03-15T23:59:59.000Z

    Fast Ignition (FI) is recognized as a potentially promising approach to achieve the high-energy-gain target performance needed for commercial inertial confinement fusion. Here we consider deuteron beam driven FI which provides not only the 'hot spot' ignition spark, but also extra ''bonus'' fusion energy through reactions in the target. In this study, we estimate the impact of the added deposition energy due to the fusion reactions occurring, based on calculations using a modified energy multiplication factor F{sub c}. The deuteron beam energy deposition range and time are also evaluated in order to estimate the desired deuteron initial energy. It is shown that an average of 30% extra energy can be gained from deuterons with 1 MeV initial energy and 12% from deuterons with 3 MeV initial energy. These results indicate that the energy benefit of this approach could be significant, but a much more comprehensive calculation is needed to realize a full 3D design for realistic experimental studies.

  9. New Agegraphic Dark Energy in $f(R)$ Gravity

    E-Print Network [OSTI]

    M. R. Setare

    2009-08-03T23:59:59.000Z

    In this paper we study cosmological application of new agegraphic dark energy density in the $f(R)$ gravity framework. We employ the new agegraphic model of dark energy to obtain the equation of state for the new agegraphic energy density in spatially flat universe. Our calculation show, taking $nnew agegraphic dark energy model in flat universe in the modified gravity cosmology framework. Also we develop a reconstruction scheme for the modified gravity with $f(R)$ action.

  10. EIS-0407: Amended Notice of Intent to Modify the Scope of the...

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

    Notice of Intent to Modify the Scope of the Environmental Impact Statement Abengoa Refinery Project near Hugoton, Kansas Amended Notice of Intent to Modify the Scope of the...

  11. Power Factor Reactive Power

    E-Print Network [OSTI]

    motor power: 117.7 V x 5.1 A = 600 W? = 0.6 kW? NOT the power measured by meter #12;Page 9 PSERC: displacement power factor: angle between voltage and current = 0 degrees pf = cos(0 degrees) = 1.0 true powerPage 1 PSERC Power Factor and Reactive Power Ward Jewell Wichita State University Power Systems

  12. Medium modifications of photon-tagged jet fragmentation function in high-energy heavy-ion collisions

    E-Print Network [OSTI]

    Guo-Liang Ma

    2014-06-24T23:59:59.000Z

    Based on a multiphase transport model, medium modifications of prompt photon-tagged jet fragmentation function are investigated by comparing prompt photon-tagged hadron azimuthal correlation in Au+Au collisions (0-40\\%) with that in p+p collisions at $\\sqrt{s_{_{\\rm NN}}}$ = 200 GeV. The measured modification factor, $I_{AA}$, increases with the increasing integration range of the away side, which reveals a medium-modified jet shape in which the medium enhancement of soft particles is preferentially located far away from the jet axis. The $I_{AA}$ largely results from strong interactions between jets and partonic matter. However, both hadronization of coalescence and hadronic rescatterings play certain roles to modify the $I_{AA}$. These behaviors reflect a dynamical evolution of modifications of the prompt photon-tagged jet fragmentation function in high-energy heavy-ion collisions.

  13. Infrared modified gravity with dynamical torsion

    SciTech Connect (OSTI)

    Nikiforova, V. [Physics Department, Moscow State University, Moscow, 119899 (Russian Federation); Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect, 7a, Moscow, 117312 (Russian Federation); Randjbar-Daemi, S. [Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, I-34014, Trieste (Italy); Rubakov, V. [Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect, 7a, Moscow, 117312 (Russian Federation)

    2009-12-15T23:59:59.000Z

    We continue the recent study of the possibility of constructing a consistent infrared modification of gravity by treating the vierbein and connection as independent dynamical fields. We present the generalized Fierz-Pauli equation that governs the propagation of a massive spin-2 mode in a model of this sort in the backgrounds of arbitrary torsionless Einstein manifolds. We show explicitly that the number of propagating degrees of freedom in these backgrounds remains the same as in flat space-time. This generalizes the recent result that the Boulware-Deser phenomenon does not occur in de Sitter and anti-de Sitter backgrounds. We find that, at least for weakly curved backgrounds, there are no ghosts in the model. We also discuss the interaction of sources in flat background. It is generally believed that the spinning matter is the only source of torsion. Our flat space study shows that this is not the case. We demonstrate that an ordinary conserved symmetric energy-momentum tensor can also generate torsion fields and thus excite massive spin-2 degrees of freedom.

  14. Human factors evaluation of the engineering test reactor control room

    SciTech Connect (OSTI)

    Banks, W.W.; Boone, M.P.

    1981-03-01T23:59:59.000Z

    The Reactor and Process Control Rooms at the Engineering Test Reactor were evaluated by a team of human factors engineers using available human factors design criteria. During the evaluation, ETR, equipment and facilities were compared with MIL-STD-1472-B, Human Engineering design Criteria for Military Systems. The focus of recommendations centered on: (a) displays and controls; placing displays and controls in functional groups; (b) establishing a consistent color coding (in compliance with a standard if possible); (c) systematizing annunciator alarms and reducing their number; (d) organizing equipment in functional groups; and (e) modifying labeling and lines of demarcation.

  15. Autonomous Vehicles Have a Wide Range of Possible Energy Impacts (Poster)

    SciTech Connect (OSTI)

    Brown, A.; Repac, B.; Gonder, J.

    2013-07-01T23:59:59.000Z

    This poster presents initial estimates of the net energy impacts of automated vehicles (AVs). Automated vehicle technologies are increasingly recognized as having potential to decrease carbon dioxide emissions and petroleum consumption through mechanisms such as improved efficiency, better routing, lower traffic congestion, and by enabling advanced technologies. However, some effects of AVs could conceivably increase fuel consumption through possible effects such as longer distances traveled, increased use of transportation by underserved groups, and increased travel speeds. The net effect on petroleum use and climate change is still uncertain. To make an aggregate system estimate, we first collect best estimates for the energy impacts of approximately ten effects of AVs. We then use a modified Kaya Identity approach to estimate the range of aggregate effects and avoid double counting. We find that depending on numerous factors, there is a wide range of potential energy impacts. Adoption of automated personal or shared vehicles can lead to significant fuel savings but has potential for backfire.

  16. The Cost of Transmission for Wind Energy: A Review of Transmission Planning Studies

    E-Print Network [OSTI]

    Mills, Andrew D.

    2009-01-01T23:59:59.000Z

    cost levelized using 15% per year levelizing factor (3) Energycost levelized using 15% per year levelizing factor (3) Energy

  17. Projections of Full-Fuel-Cycle Energy and Emissions Metrics

    E-Print Network [OSTI]

    Coughlin, Katie

    2013-01-01T23:59:59.000Z

    of fuel output. By definition, the energy consumption of theEnergy Accounting ..6 2.2 Definitioncycle. Definition of FFC Factors for Energy and Emissions

  18. Energy prices and the adoption of energy-saving technology

    E-Print Network [OSTI]

    Linn, Joshua

    2006-01-01T23:59:59.000Z

    This paper investigates the link between factor prices, technology and factor demands. I estimate the effect of price-induced technology adoption on energy demand in the U.S. manufacturing sector, using plant data from the ...

  19. HCFC1 is a common component of active human CpG-island promoters and coincides with ZNF143, THAP11, YY1, and GABP transcription factor occupancy

    E-Print Network [OSTI]

    JnBaptiste, Courtney Kenneil

    In human transcriptional regulation, DNA-sequence-specific factors can associate with intermediaries that orchestrate interactions with a diverse set of chromatin-modifying enzymes. One such intermediary is HCFC1 (also ...

  20. California Energy Commission DEC.13 2012

    E-Print Network [OSTI]

    .energy.ca.gov NOTICE OF RECEIPT PETITION TO AMEND THE ENERGY COMMISSION DECISION for the GILROY COGENERATION PROJECT.P. filed a petition with the California Energy Commission requesting to modify the Gilroy Cogeneration Cogeneration Project (84-AFC-4C) Page 2 docket number (84-AFC-4C) in the subject line or first paragraph

  1. ANALYSIS OF OUT OF DATE MCU MODIFIER LOCATED IN SRNL

    SciTech Connect (OSTI)

    Crawford, C.

    2014-10-22T23:59:59.000Z

    SRNL recently completed density measurements and chemical analyses on modifier samples stored in drums within SRNL. The modifier samples date back to 2008 and are in various quantities up to 40 gallons. Vendor information on the original samples indicates a shelf life of 5 years. There is interest in determining if samples that have been stored for more than the 5 year shelf life are still acceptable for use. The Modular Caustic Side Solvent Extraction Unit (MCU) Solvent component Cs-7SB [(2,2,3,3- tetraflouropropoxy)-3-(4-sec-butylphenoxy)-2-propanol, CAS #308362-88-1] is used as a diluent modifier to increase extractant solubility and provide physical characteristics necessary for diluent trimming.

  2. Thermal cracking of rubber modified pavements, May 1995. Final report

    SciTech Connect (OSTI)

    Raad, L.; Yuan, X.; Saboundjian, S.

    1995-05-01T23:59:59.000Z

    In accordance with the original ISTEA mandate (1991) to use crumb tire rubber in pavements, Alaska would be required to use about 250 tons of used tire rubber starting in 1994 and increasing to about 1,000 tons of rubber in 1997 and each year thereafter. A number of pavements using crumb rubber modifiers have been built in the state and have been in service for periods of 8 to 15 years. Knowledge of the behavior of these rubber-modified pavements under extreme climate conditions, particularly in relation to their low temperature cracking resistance, is necessary for future design and construction of rubberized pavements in Alaska. This report presents results of a study to determine the low temperature cracking resistance of rubber modified pavements in Alaska in comparison with conventional asphalt concrete pavements.

  3. Method of detecting luminescent target ions with modified magnetic microspheres

    DOE Patents [OSTI]

    Shkrob, Ilya A; Kaminski, Michael D

    2014-05-13T23:59:59.000Z

    This invention provides methods of using modified magnetic microspheres to extract target ions from a sample in order to detect their presence in a microfluidic environment. In one or more embodiments, the microspheres are modified with molecules on the surface that allow the target ions in the sample to form complexes with specific ligand molecules on the microsphere surface. In one or more embodiments, the microspheres are modified with molecules that sequester the target ions from the sample, but specific ligand molecules in solution subsequently re-extract the target ions from the microspheres into the solution, where the complexes form independent of the microsphere surface. Once the complexes form, they are exposed to an excitation wavelength light source suitable for exciting the target ion to emit a luminescent signal pattern. Detection of the luminescent signal pattern allows for determination of the presence of the target ions in the sample.

  4. Impedimetric investigation of gold nanoparticles - guanine modified electrode

    SciTech Connect (OSTI)

    Vulcu, A.; Pruneanu, S.; Berghian-Grosan, C.; Olenic, L. [National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca (Romania)] [National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca (Romania); Muresan, L. M. [Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca (Romania)] [Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca (Romania); Barbu-Tudoran, L. [Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca (Romania)] [Faculty of Biology and Geology, Babes-Bolyai University, Cluj-Napoca (Romania)

    2013-11-13T23:59:59.000Z

    In this paper we report the preparation of a modified electrode with gold nanoparticles and guanine. The colloidal suspension of gold nanoparticles was obtained by Turkevich method and was next analyzed by UV-Vis spectroscopy and Transmission Electron Microscopy (TEM). The gold electrode was modified by self-assembling the gold nanoparticles with guanine, the organic molecule playing also the role of linker. The electrochemical characteristics of the bare and modified electrode were investigated by Electrochemical Impedance Spectroscopy (EIS). A theoretical model was developed based on an electrical equivalent circuit which contain solution resistance (R{sub s}), charge transfer resistance (R{sub ct}), Warburg impedance (Z{sub W}) and double layer capacitance (C{sub dl})

  5. Dense LU Factorization on Multicore Supercomputer Nodes

    SciTech Connect (OSTI)

    Lifflander, Jonathan [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Miller, Phil [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Venkataraman, Ramprasad [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Arya, Anshu [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Jones, Terry R [ORNL] [ORNL; Kale, Laxmikant V [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign

    2012-01-01T23:59:59.000Z

    Dense LU factorization is a prominent benchmark used to rank the performance of supercomputers. Many implementations, including the reference code HPL, use block-cyclic distributions of matrix blocks onto a two-dimensional process grid. The process grid dimensions drive a trade-off between communication and computation and are architecture- and implementation-sensitive. We show how the critical panel factorization steps can be made less communication-bound by overlapping asynchronous collectives for pivot identification and exchange with the computation of rank-k updates. By shifting this trade-off, a modified block-cyclic distribution can beneficially exploit more available parallelism on the critical path, and reduce panel factorization's memory hierarchy contention on now-ubiquitous multi-core architectures. The missed parallelism in traditional block-cyclic distributions arises because active panel factorization, triangular solves, and subsequent broadcasts are spread over single process columns or rows (respectively) of the process grid. Increasing one dimension of the process grid decreases the number of distinct processes in the other dimension. To increase parallelism in both dimensions, periodic 'rotation' is applied to the process grid to recover the row-parallelism lost by a tall process grid. During active panel factorization, rank-1 updates stream through memory with minimal reuse. In a column-major process grid, the performance of this access pattern degrades as too many streaming processors contend for access to memory. A block-cyclic mapping in the more popular row-major order does not encounter this problem, but consequently sacrifices node and network locality in the critical pivoting steps. We introduce 'striding' to vary between the two extremes of row- and column-major process grids. As a test-bed for further mapping experiments, we describe a dense LU implementation that allows a block distribution to be defined as a general function of block to processor. Other mappings can be tested with only small, local changes to the code.

  6. Accelerated Cosmological Models in Modified Gravity tested by distant Supernovae SNIa data

    E-Print Network [OSTI]

    Andrzej Borowiec; Wlodzimierz Godlowski; Marek Szydlowski

    2006-08-03T23:59:59.000Z

    Recent supernovae of type Ia measurements and other astronomical observations suggest that our universe is in accelerating phase of evolution at the present epoch. While a dark energy of unknown form is usually proposed as the most feasible mechanism for the acceleration, there are appears some alternative conception that some effects arising from generalization of Einstein equation can mimic dark energy through a modified Friedmann equation. In this work we investigate some observational constraints on modified Friedmann equation obtained from generalized Lagrangian ${\\cal L} \\propto R^n$ in minimal coupling with matter in Palatini formalism. We mainly concentrate on the constraints of model parameters from distant supernovae but other constraint from baryon oscillation prior is also considered. We obtain the confidence levels on two additional model parameter ($n$,$\\Omega_{m,0}$). We conclude that the FRW model of First-Order Non-linear gravity survives several observational test like SNIa observation and baryon oscillation peaks. We find preferred value of $\\Omega_{m,0} \\simeq 0.3$ from combined analysis of supernovae data and baryon oscillation peak. For deeper statistical analysis we apply Akaike and Bayesian information criteria of model selection for comparison prediction of the model with prediction of concordance $\\Lambda$CDM model.

  7. Spectrum of Cosmic Microwave Fluctuations and the Formation of Galaxies in a Modified Gravity Theory

    E-Print Network [OSTI]

    J. W. Moffat

    2006-02-27T23:59:59.000Z

    A modified gravity (MOG) possesses a light, neutral vector particle called a ``phion'' associated with a vector field $\\phi^\\mu$, which forms a cold fluid of Bose-Einstein condensates before recombination with zero pressure and zero shear viscosity. The energy density associated with this Bose-Einstein condensate fluid dominates the energy density before recombination and produces a density parameter, $\\Omega_\\phi\\sim 0.3$, that together with the fractional baryon density $\\Omega_b\\sim 0.04$, and a cosmological constant parameter $\\Omega_\\Lambda\\sim 0.7$ yields an approximate fit to the data for the acoustical oscillations in the CMB power spectrum. The quantum phion condensate fluid is abundant well before recombination and can clump and form the primordial structure for galaxies. At late times in the expanding universe, in local bound systems such as galaxies ordinary baryonic matter dominates the matter density. For galactic systems in the present epoch, the modified Newtonian acceleration law determined by MOG describes well galaxy rotation curve data and X-ray cluster mass profile data.

  8. Evaluation of a Modified Scheme for Shallow Convection: Implementation of CuP and Case Studies

    SciTech Connect (OSTI)

    Berg, Larry K.; Gustafson, William I.; Kassianov, Evgueni I.; Deng, Liping

    2013-01-01T23:59:59.000Z

    A new treatment for shallow clouds has been introduced into the Weather Research and Forecasting (WRF) model. The new scheme, called the cumulus potential (CuP) scheme, replaces the ad-hoc trigger function used in the Kain-Fritsch cumulus parameterization with a trigger function related to the distribution of temperature and humidity in the convective boundary layer via probability density functions (PDFs). An additional modification to the default version of WRF is the computation of a cumulus cloud fraction based on the time scales relevant for shallow cumuli. Results from three case studies over the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) site in north central Oklahoma are presented. These days were selected because of the presence of shallow cumuli over the ARM site. The modified version of WRF does a much better job predicting the cloud fraction and the downwelling shortwave irradiance thancontrol simulations utilizing the default Kain-Fritsch scheme. The modified scheme includes a number of additional free parameters, including the number and size of bins used to define the PDF, the minimum frequency of a bin within the PDF before that bin is considered for shallow clouds to form, and the critical cumulative frequency of bins required to trigger deep convection. A series of tests were undertaken to evaluate the sensitivity of the simulations to these parameters. Overall, the scheme was found to be relatively insensitive to each of the parameters.

  9. Miniature modified Faraday cup for micro electron beams

    DOE Patents [OSTI]

    Teruya, Alan T. (Livermore, CA); Elmer, John W. (Danville, CA); Palmer, Todd A. (Livermore, CA); Walton, Chris C. (Berkeley, CA)

    2008-05-27T23:59:59.000Z

    A micro beam Faraday cup assembly includes a refractory metal layer with an odd number of thin, radially positioned traces in this refractory metal layer. Some of the radially positioned traces are located at the edge of the micro modified Faraday cup body and some of the radially positioned traces are located in the central portion of the micro modified Faraday cup body. Each set of traces is connected to a separate data acquisition channel to form multiple independent diagnostic networks. The data obtained from the two diagnostic networks are combined and inputted into a computed tomography algorithm to reconstruct the beam shape, size, and power density distribution.

  10. Time Delay Predictions in a Modified Gravity Theory

    E-Print Network [OSTI]

    J. W. Moffat

    2006-06-01T23:59:59.000Z

    The time delay effect for planets and spacecraft is obtained from a fully relativistic modified gravity theory including a fifth force skew symmetric field by fitting to the Pioneer 10/11 anomalous acceleration data. A possible detection of the predicted time delay corrections to general relativity for the outer planets and future spacecraft missions is considered. The time delay correction to GR predicted by the modified gravity is consistent with the observational limit of the Doppler tracking measurement reported by the Cassini spacecraft on its way to Saturn, and the correction increases to a value that could be measured for a spacecraft approaching Neptune and Pluto.

  11. Differentiating Between Modified Gravity Theories in the Solar System

    E-Print Network [OSTI]

    Ali Mozaffari

    2014-03-21T23:59:59.000Z

    Building on previous work, we re-examine the possibility of testing MOdified Newtonian Dynamics near the saddle points of gravitational potentials in the Solar System, through an extension of the forthcoming LISA Pathfinder mission. We extend present analysis to include quasi-linear formulations of these theories, resulting from fully relativistic modified gravity theories. Using similar quantitative and qualitative tools, we demonstrate that in general, both the instrumental response and typical Signal to Noise Ratios for such a test will be different. Finally we investigate constraints from a negative result and parameterised free functions.

  12. Modified gaseous atmospheres for storage of beef, lamb and pork

    E-Print Network [OSTI]

    Davis, George Theodore

    1979-01-01T23:59:59.000Z

    ) ( Member ) (He d of Depar ent) December 1979 ABSTRACT Modified Gaseous Atmospheres for Storage of Bee f, Pork and Lamb (December 1979) George Theodore Davis III, B. S. , Texas AsM University Co-Chairmen of Advisory Committee: Dr. Z. L. Carpenter...MODIFIED G'~. ' . . OUS ATMOSPHERI. S FOR STORAGE OI REEF, I. PMB AND PORK A Thesis by GEORGE THEODORE DAVIS I II Submitted to thc. graduate college of Texas AsM University in partial fulfillment of the rec, u. 'rement fox the degree...

  13. FGF growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY); Takahashi, Kazuyuki (Germantown, MD)

    2012-07-24T23:59:59.000Z

    The present invention provides a fibroblast growth factor heparin-binding analog of the formula: ##STR00001## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, Y and Z are as defined, pharmaceutical compositions, coating compositions and medical devices including the fibroblast growth factor heparin-binding analog of the foregoing formula, and methods and uses thereof.

  14. Electromagetic proton form factors

    E-Print Network [OSTI]

    M Y Hussein

    2006-10-31T23:59:59.000Z

    The electromagnetic form factors are crucial to our understanding of the proton internal structure, and thus provide a strong constraint of the distributions of the charge and magnetization current within the proton. We adopted the quark-parton model for calculating and understanding the charge structure of the proton interms of the electromagnetic form factors. A remarkable agreement with the available experimental evidence is found.

  15. Overview of the Electrical Energy Segment of the Energy Information Administration/ Manufacturing Consumption Report 

    E-Print Network [OSTI]

    Lockhead, S.

    1999-01-01T23:59:59.000Z

    , liquefied petroleum gas, coke and breeze, coal, and electricity, only the electricity segment is overviewed. Along with pure electrical energy consumption information, newly available data covers methods that manufacturers used to purchase and modify...

  16. Overview of the Electrical Energy Segment of the Energy Information Administration/ Manufacturing Consumption Report

    E-Print Network [OSTI]

    Lockhead, S.

    , liquefied petroleum gas, coke and breeze, coal, and electricity, only the electricity segment is overviewed. Along with pure electrical energy consumption information, newly available data covers methods that manufacturers used to purchase and modify...

  17. Monthly energy review, May 1999

    SciTech Connect (OSTI)

    NONE

    1999-05-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs., 61 tabs.

  18. Monthly energy review, November 1996

    SciTech Connect (OSTI)

    NONE

    1996-11-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 75 tabs.

  19. Monthly energy review, August 1997

    SciTech Connect (OSTI)

    NONE

    1997-08-01T23:59:59.000Z

    The Monthly Energy Review for the month of August 1997, presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of U.S. production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors.

  20. Monthly energy review, November 1997

    SciTech Connect (OSTI)

    NONE

    1997-11-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs., 91 tabs.

  1. Monthly energy review, June 1998

    SciTech Connect (OSTI)

    NONE

    1998-06-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 36 figs., 61 tabs.

  2. Monthly energy review, July 1998

    SciTech Connect (OSTI)

    NONE

    1998-07-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs. 73 tabs.

  3. Monthly energy review, November 1998

    SciTech Connect (OSTI)

    NONE

    1998-11-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs., 61 tabs.

  4. Monthly energy review, January 1999

    SciTech Connect (OSTI)

    NONE

    1999-01-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs., 61 tabs.

  5. Monthly energy review, March 1999

    SciTech Connect (OSTI)

    NONE

    1999-03-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs., 74 tabs.

  6. Monthly energy review, February 1999

    SciTech Connect (OSTI)

    NONE

    1999-02-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs., 73 tabs.

  7. Monthly energy review, October 1998

    SciTech Connect (OSTI)

    NONE

    1998-10-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. 37 figs., 61 tabs.

  8. Shrinkage and microstructural development during drying of organically modified silica xerogels

    SciTech Connect (OSTI)

    Raman, N.K. [New Mexico Univ., Albuquerque, NM (United States); Wallace, S. [Nanopore Corp., Albuquerque, NM (United States); Brinker, C.J. [New Mexico Univ., Albuquerque, NM (United States)]|[Sandia National Labs., Albuquerque, NM (United States)

    1996-07-01T23:59:59.000Z

    We have studied the different driving forces behind syneresis in MTES/TEOS gels by aging them in different H{sub 2}O/EtOH pore fluids. We show using shrinkage, density, contact angle, and N{sub 2} sorption measurements, the influence of gel/solvent interactions on the microstructural evolution during drying. Competing effects of syneresis (that occurs during aging) and drying shrinkage resulted in the overall linear shrinkage of the organically modified gels to be constant at {approximately}50%. Increasing the hydrophobicity of the gels caused the driving force for syneresis to change from primarily condensation reactions to a combination of condensation and solid/liquid interfacial energy. In addition the condensation driven shrinkage was observed to be irreversible, whereas the interfacial free energy driven shrinkage was observed to be partially reversible. Nitrogen sorption experiments show that xerogels with the same overall extent of shrinkage can have vastly different microstructures due to the effects of microphase separation.

  9. Effects of carboxylic acids on the rheological properties of crumb rubber modified asphalt

    SciTech Connect (OSTI)

    Tauer, J.E.; Robertson, R.E. [Western Research Institute, Laramie, WY (United States)

    1996-12-31T23:59:59.000Z

    The Federal mandate of 1991-1995 on the use of scrap tires in Federal roadway construction sparked a major interest in gaining a fundamental understanding of the behavior of rubber in asphalt. This study is a systematic elucidation of what chemistry controls the final crumb rubber modified asphalt (CRMA) product quality. We discovered that the type and total acid content in the asphalt are the most influential chemical factors that determine the changes in the important roadway properties of shear modulus (G*) and loss angle ({delta}) of CRMA. Low acid (<0.005 m/L) asphalts were modified with three types of carboxylic acid and each made into CRMA using typical field mixing conditions of 1 hour at 175{degrees}C. Rheological measurements were then made at various storage times up to 192 hours following storage at both 156 and 200{degrees}C. We found the changes in CRMA theological properties correspond to the acid type spiked into the asphalt.

  10. Plastic wastes as modifiers of the thermoplasticity of coal

    SciTech Connect (OSTI)

    M.A. Diez; C. Barriocanal; R. Alvarez [Instituto Nacional del Carbon (INCAR), Oviedo (Spain)

    2005-12-01T23:59:59.000Z

    Plastic waste recycling represents a major challenge in environmental protection with different routes now available for dealing with mechanical, chemical, and energy recycling. New concepts in plastic waste recycling have emerged so that now such wastes can be used to replace fossil fuels, either as an energy source or as a secondary raw material. Our objective is to explore the modification of the thermoplastic properties of coal in order to assess the possibility of adding plastic waste to coal for the production of metallurgical coke. Two bituminous coals of different rank and thermoplastic properties were used as a base component of blends with plastic wastes such as high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), polystyrene (PS), poly(ethylene terephthalate) (PET), and acrilonitrile-butadiene-styrene copolymer (ABS). In all cases, the addition of plastic waste led to a reduction in Gieseler maximum fluidity, the extent of the reduction depending on the fluidity of the base coal, and the amount, the molecular structure, and the thermal behavior of the polymer. As a consequence, the amount of volatile matter released by the plastic waste before, during, and after the maximum fluidity of the coal and the hydrogen-donor and hydrogen-acceptor capacities of the polymer were concluded to be key factors in influencing the extent of the reduction in fluidity and the development of anisotropic carbons. The incorporation of the plastic to the carbon matrix was clearly established in semicokes produced from blends of a high-fluid coal and the plastic tested by SEM examination. 42 refs., 10 figs., 7 tabs.

  11. Solution Structure of the Yeast Ubiquitin-Like Modifier Protein Hub1

    SciTech Connect (OSTI)

    Ramelot, Theresa A.(BATTELLE (PACIFIC NW LAB)) [BATTELLE (PACIFIC NW LAB); Cort, John R.(BATTELLE (PACIFIC NW LAB)) [BATTELLE (PACIFIC NW LAB); Yee, Adelinda (Ontario Cancer Institute) [Ontario Cancer Institute; Semsesi, Anthony (University of Toronto) [University of Toronto; Edwards, Aled M.(University of Toronto) [University of Toronto; Arrowsmith, Cheryl H.(9012) [9012; Kennedy, Michael A.(BATTELLE (PACIFIC NW LAB)) [BATTELLE (PACIFIC NW LAB)

    2003-12-01T23:59:59.000Z

    The Hub1 protein from Saccharomyces cerevisiae (NESG ID: YTYst190 / PIR: S78735/ GI: 7493880) is a ubiquitin-like modifier protein (UBL) that is essential for proper cell polarization during the formation of mating projections in S. cerevisiae. Hub1 conjugation to the cell polarity factors Sph1 and Hbt1 was required for their proper subcellular localization (1). Hub1 belongs to a conserved family of eukaryotic proteins. S. cerevisiae and human Hub1 share 65% identity. The sequence identity with ubiquitin is 22%. Here we describe the solution structure of Hub1 determined by NMR spectroscopy. We compare the structure of Hub1 to ubiquitin and find that although the overall fold is almost identical, critical surface residues in ubiquitin are not conserved in Hub1. These differences probably reflect the different functions of the UBL Hub1.

  12. Patterned Assembly of Genetically Modified Viral Nanotemplates via

    E-Print Network [OSTI]

    Rubloff, Gary W.

    arrangements of charged amino acids along the surface of the TMV virion can function in the nucleationPatterned Assembly of Genetically Modified Viral Nanotemplates via Nucleic Acid Hybridization The patterning of nanoparticles represents a significant obstacle in the assembly of nanoscale materials

  13. Method of storing radioactive wastes using modified tobermorite

    DOE Patents [OSTI]

    Komarneni, Sridhar (State College, PA); Roy, Della M. (State College, PA)

    1985-01-01T23:59:59.000Z

    A new cation exchanger is a modified tobermorite containing aluminum isomorphously substituted for silicon and containing sodium or potassium. The exchanger is selective for lead, rubidium, cobalt and cadmium and is selective for cesium over calcium or sodium. The tobermorites are compatable with cement and are useful for the long-term fixation and storage of radioactive nuclear wastes.

  14. Computer software engineers design, create, and modify computer applications.

    E-Print Network [OSTI]

    Computer software engineers design, create, and modify computer applications. Computer Software Engineers (0*NET 15-1031.00, 15-1032.00) Significant Points Computer software engineers are projected are expected for college graduates with at least a bachelor's degree in computer engineering or computer

  15. A test of Taylor- and modified Taylor-expansion

    E-Print Network [OSTI]

    Max Wilfling; Christof Gattringer

    2014-04-08T23:59:59.000Z

    We compare Taylor expansion and a modified variant of Taylor expansion, which incorporates features of the fugacity series, for expansions in the chemical potential around a zero-density lattice field theory. As a first test we apply both series to the cases of free fermions and free bosons. Convergence and other properties are analyzed.

  16. A Modified Reactive Control Framework for Cooperative Mobile Robots

    E-Print Network [OSTI]

    A Modified Reactive Control Framework for Cooperative Mobile Robots J. Salido a , J.M. Dolan a , J Dept. of Electrical & Computer Engineering, Carnegie Mellon Univ. Pittsburgh, PA 15213­3890 USA. Purely reactive approaches such as that of Brooks are efficient, but lack a mechanism for global control

  17. On the test of the modified BCS at finite temperature

    E-Print Network [OSTI]

    Nguyen Dinh Dang; Akito Arima

    2006-10-06T23:59:59.000Z

    The results and conclusions by Ponomarev and Vdovin [Phys. Rev. C {\\bf 72}, 034309 (2005)] are inadequate to judge the applicability of the modified BCS because they were obtained either in the temperature region, where the use of zero-temperature single-particle spectra is no longer justified, or in too limited configuration spaces.

  18. Tracking and Modifying Upper-body Human Motion Data

    E-Print Network [OSTI]

    Zordan, Victor

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

  19. SURFACE CHARACTERIZATION OF CHEMICALLY MODIFIED WOOD: DYNAMIC WETTABILITY1

    E-Print Network [OSTI]

    wetting slope and K value) were used to illustrate the dynamic wetting process. Dynamic contact angle the dynamic wettability of wood surfaces modified with different coupling agents. Keywords: Chemical articles on dynamic wetting process for wood adhesion have been published (Scheikl and Dunky 1998

  20. ORIGINAL PAPER Genetically modified crops and aquatic ecosystems

    E-Print Network [OSTI]

    Gruner, Daniel S.

    of genetically modified (GM) crops. The ERA for terrestrial agroecosystems is well-developed, whereas guidance for ERA of GM crops in aquatic ecosystems is not as well-defined. The purpose of this document studies are necessary to inform the risk assessment for a specific GM crop should be done on a case

  1. Optimizing Power Factor Correction

    E-Print Network [OSTI]

    Phillips, R. K.; Burmeister, L. C.

    = energy charge from 5 above, $/mo c) $0.024 per kWh for the next 250 kWh per kVA 7. The bill is then adjusted for times the billing capacity; plus a) fuel and purchased energy under the energy d) $0.022 per kWh for all remaining kWh. cost adjustment... are neglected. A linear capacitor cost model is assumed that has an initial cost plus a cost per kVAR of .? ESL-IE-86-06-132 Proceedings from the Eighth Annual Industrial Energy Technology Conference, Houston, TX, June 17-19, 1986 capacitance. Although...

  2. A low-$z$ test for interacting dark energy

    E-Print Network [OSTI]

    Goncalves, R S; Alcaniz, J S

    2015-01-01T23:59:59.000Z

    A non-minimal coupling between the dark matter and dark energy components may offer a way of solving the so-called coincidence problem. In this paper we propose a low-$z$ test for such hypothesis using measurements of the gas mass fraction $f_{\\rm{gas}}$ in relaxed and massive galaxy clusters. The test applies to any model whose dilution of dark matter is modified with respect to the standard $a^{-3}$ scaling, as usual in interacting models, where $a$ is the cosmological scale factor. We apply the test to current $f_{\\rm{gas}}$ data and perform Monte Carlo simulations to forecast the necessary improvements in number and accuracy of upcoming observations to detect a possible interaction in the cosmological dark sector. Our results show that improvements in the present relative error $\\sigma_{\\rm{gas}}/f_{\\rm{gas}}$ are more effective to achieve this goal than an increase in the size of the $f_{\\rm{gas}}$ sample.

  3. Multi-factor authentication

    DOE Patents [OSTI]

    Hamlet, Jason R; Pierson, Lyndon G

    2014-10-21T23:59:59.000Z

    Detection and deterrence of spoofing of user authentication may be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a user of the hardware device. The cryptographic fingerprint unit includes an internal physically unclonable function ("PUF") circuit disposed in or on the hardware device, which generates a PUF value. Combining logic is coupled to receive the PUF value, combines the PUF value with one or more other authentication factors to generate a multi-factor authentication value. A key generator is coupled to generate a private key and a public key based on the multi-factor authentication value while a decryptor is coupled to receive an authentication challenge posed to the hardware device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key.

  4. Opportunities for Energy Efficiency and Open Automated Demand Response in Wastewater Treatment Facilities in California -- Phase I Report

    E-Print Network [OSTI]

    Lekov, Alex

    2010-01-01T23:59:59.000Z

    produce the greatest energy and demand savings. Aeration andand C.Y. Chang (2005). "Energy Demand in Sludge Dewatering."be modified to reduce energy demand during demand response

  5. Effects of the Running of the QCD Coupling on the Energy Loss in the Quark-Gluon Plasma

    E-Print Network [OSTI]

    Jens Braun; Hans-Jürgen Pirner

    2006-10-25T23:59:59.000Z

    Finite temperature modifies the running of the QCD coupling alpha_s(k,T) with resolution k. After calculating the thermal quark and gluon masses selfconsistently, we determine the quark-quark and quark-gluon cross sections in the plasma based on the running coupling. We find that the running coupling enhances these cross sections by factors of two to four depending on the temperature. We also compute the energy loss dE/dx of a high-energy quark in the plasma as a function of temperature. Our study suggests that, beside t-channel processes, inverse Compton scattering is a relevant process for a quantitative understanding of the energy loss of an incident quark in a hot plasma.

  6. Effects of the running of the QCD coupling on the energy loss in the quark-gluon plasma

    SciTech Connect (OSTI)

    Braun, Jens [Institute for Theoretical Physics, University of Heidelberg, Philosophenweg 19, 69120 Heidelberg (Germany); Pirner, Hans-Juergen [Institute for Theoretical Physics, University of Heidelberg, Philosophenweg 19, 69120 Heidelberg (Germany); Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany)

    2007-03-01T23:59:59.000Z

    Finite temperature modifies the running of the QCD coupling {alpha}{sub s}(k,T) with resolution k. After calculating the thermal quark and gluon masses self-consistently, we determine the quark-quark and quark-gluon cross sections in the plasma based on the running coupling. We find that the running coupling enhances these cross sections by factors of two to four depending on the temperature. We also compute the energy loss (dE/dx) of a high-energy quark in the plasma as a function of temperature. Our study suggests that, beside t-channel processes, inverse Compton scattering is a relevant process for a quantitative understanding of the energy loss of an incident quark in a hot plasma.

  7. On Improving the Intelligibility of Synchronized Over-lap-and-Add (SOLA) at Low TSM Factor

    E-Print Network [OSTI]

    Wong, Peter Hon-Wah

    On Improving the Intelligibility of Synchronized Over- lap-and-Add (SOLA) at Low TSM Factor Peter H-7053** ABSTRACT In this paper, we propose an algorithm to modify the Synchronized Overlap-and-Add (SOLA) technique. SOLA is a popular technique for time scale modification of speech and audio signal. It changes the time

  8. Mastoparan Activates Calcium Spiking Analogous to Nod Factor-Induced Responses in Medicago truncatula

    E-Print Network [OSTI]

    Downie, J. Allan

    PERCEPTION and DMI2 and in the putative cation channel DMI1, which are all required for Nod factor induction phosphate (NAADP), cADP-Rib (cADPR), and calcium itself can function as secondary messengers directly or indirectly modifying calcium channels to activate calcium release (Sanders et al., 2002). In ani- mal cells

  9. DNA binding shifts the redox potential of the transcription factor SoxR

    E-Print Network [OSTI]

    Dietrich, Lars

    DNA binding shifts the redox potential of the transcription factor SoxR Alon A. Gorodetsky , Lars E-modified electrodes are used to probe the effects of binding to DNA on the redox potential of SoxR, a transcription in the absence of DNA. Using Redmond red as a covalently bound redox reporter affixed above the SoxR binding site

  10. Parametric Analysis of the Factors Controlling the Costs of Sedimentary Geothermal Systems - Preliminary Results (Poster)

    SciTech Connect (OSTI)

    Augustine, C.

    2013-10-01T23:59:59.000Z

    Parametric analysis of the factors controlling the costs of sedimentary geothermal systems was carried out using a modified version of the Geothermal Electricity Technology Evaluation Model (GETEM). The sedimentary system modeled assumed production from and injection into a single sedimentary formation.

  11. Power-Factor Compensation

    E-Print Network [OSTI]

    Stankoviæ, Aleksandar

    frequency. The phase shift arises largely due to energy flows characterizing electric motors that dominate IEEE CONTROL SYSTEMS MAGAZINE » APRIL 2007 1066-033X/07/$25.00©2007IEEE #12;A fundamental energy, where nonlinear phenomena cannot be neglected. These trends have resulted in the widespread presence

  12. Dissecting Soft Radiation with Factorization

    E-Print Network [OSTI]

    Iain W. Stewart; Frank J. Tackmann; Wouter J. Waalewijn

    2015-02-10T23:59:59.000Z

    An essential part of high-energy hadronic collisions is the soft hadronic activity that underlies the primary hard interaction. It includes soft radiation from the primary hard partons, secondary multiple parton interactions (MPI), and factorization-violating effects. The invariant mass spectrum of the leading jet in $Z$+jet and $H$+jet events is directly sensitive to these effects, and we use a QCD factorization theorem to predict its dependence on the jet radius $R$, jet $p_T$, jet rapidity, and partonic process for both the perturbative and nonperturbative components of primary soft radiation. We prove that the nonperturbative contributions involve only odd powers of $R$, and the linear $R$ term is universal for quark and gluon jets. The hadronization model in PYTHIA8 agrees well with these properties. The perturbative soft initial state radiation (ISR) has a contribution that depends on the jet area in the same way as the underlying event, but this degeneracy is broken by dependence on the jet $p_T$. The size of this soft ISR contribution is proportional to the color state of the initial partons, yielding the same positive contribution for $gg\\to Hg$ and $gq\\to Zq$, but a negative interference contribution for $q\\bar q\\to Z g$. Hence, measuring these dependencies allows one to separate hadronization, soft ISR, and MPI contributions in the data.

  13. Factors Affecting Photosynthesis!

    E-Print Network [OSTI]

    Kudela, Raphael M.

    Factors Affecting Photosynthesis! Temperature Eppley (1972) Light Sverdrup's Critical Depth-493, but the general concept is still valid! ! #12;PB opt & Temperature! #12;Photosynthesis & Temperature! Remember: in the laboratory, we can measure photosynthesis versus irradiance (PvsE) and calculate Ek, Pmax, and alpha

  14. Public Health FAT FACTORS

    E-Print Network [OSTI]

    Qian, Ning

    : THE UNITED STATES SPENDS MORE ON HEALTH CARE THAN ANY OTHER COUNTRY. YET WE CONTINUE TO FALL FAR BEHIND States spends an astonishing percent of our gross domestic product on health care--significantly moreColumbia Public Health HOT TOPIC Climate Change FAT FACTORS Obesity Prevention BOOK SMART

  15. SciTech Connect: Industrial Power Factor Analysis Guidebook.

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

    factor is a way of measuring the percentage of reactive power in an electrical system. Reactive power represents wasted energy--electricity that does no useful work because the...

  16. Wind Energy Facilities and Residential Properties: The Effect of Proximity and View on Sales Prices

    E-Print Network [OSTI]

    Hoen, Ben

    2010-01-01T23:59:59.000Z

    Offshore Wind Power: Underlying Factors. Energy Policy. 35(Wind Development on Local Property Values. Renewable Energy Policy

  17. Wind Energy Facilities and Residential Properties: The Effect of Proximity and View on Sales Prices

    E-Print Network [OSTI]

    Hoen, Ben

    2012-01-01T23:59:59.000Z

    Offshore Wind Power: Underlying Factors. Energy Policy,Wind Development on Local Property Values. Renewable Energy Policy

  18. Measurement of astrophysical S factors and electron screening potentials for d(d, n){sup 3}He reaction In ZrD{sub 2}, TiD{sub 2}, D{sub 2}O, and CD{sub 2} targets in the ultralow energy region using plasma accelerators

    SciTech Connect (OSTI)

    Bystritsky, V. M. [Joint Institute for Nuclear Research (Russian Federation); Bystritskii, Vit. M. [University of California, Department of Physics and Astronomy (United States); Dudkin, G. N. [National Scientific Research Tomsk Polytechnical University (Russian Federation); Filipowicz, M. [University of Science and Technology, Faculty of Fuels and Energy, AGH (Poland); Gazi, S.; Huran, J. [Institute of Electrical Engineering SAS (Slovakia); Kobzev, A. P. [Joint Institute for Nuclear Research (Russian Federation); Mesyats, G. A. [Lebedev Physical Institute of the Russian Academy of Sciences (Russian Federation); Nechaev, B. A.; Padalko, V. N. [National Scientific Research Tomsk Polytechnical University (Russian Federation); Parzhitskii, S. S. [Joint Institute for Nuclear Research (Russian Federation); Pen'kov, F. M. [Institute of Nuclear Physics NNC (Kazakhstan); Philippov, A. V. [Joint Institute for Nuclear Research (Russian Federation); Kaminskii, V. L. [National Scientific Research Tomsk Polytechnical University (Russian Federation); Tuleushev, Yu. Zh. [Institute of Nuclear Physics NNC (Kazakhstan); Wozniak, J. [University of Science and Technology, Faculty of Physics and Applied Computer Sciences, AGH (Poland)

    2012-01-15T23:59:59.000Z

    The paper is devoted to study electron screening effect influence on the rate of d(d, n){sup 3}He reaction in the ultralow deuteron collision energy range in the deuterated polyethylene (CD{sub 2}), frozen heavy water (D{sub 2}O) and deuterated metals (ZrD{sub 2} and TiD{sub 2}). The ZrD{sub 2} and TiD{sub 2} targets were fabricated via magnetron sputtering of titanium and zirconium in gas (deuterium) environment. The experiments have been carried out using high-current plasma pulsed accelerator with forming of inverse Z pinch (HCEIRAS, Russia) and pulsed Hall plasma accelerator (NPI at TPU, Russia). The detection of neutrons with energy of 2.5MeV from dd reaction was done with plastic scintillation spectrometers. As a result of the experiments the energy dependences of astrophysical S factor for the dd reaction in the deuteron collision energy range of 2-7 keV and the values of the electron screening potential U{sub e} of interacting deuterons have been measured for the indicated above target: U{sub e}(CD{sub 2}) Less-Than-Or-Slanted-Equal-To 40 eV; U{sub e}(D{sub 2}O) Less-Than-Or-Slanted-Equal-To 26 eV; U{sub e}(ZrD{sub 2}) = 157 {+-} 43 eV; U{sub e}(TiD{sub 2}) = 125{+-}34 eV. The value of astrophysical S factor, corresponding to the deuteron collision energy equal to zero, in the experiments with D{sub 2}O target is found: S{sub b}(0) = 58.6 {+-} 3.6 keV b. The paper compares our results with other available published experimental and calculated data.

  19. Using computational tools to factor wind into architectural environment design

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    and an acceptable thermal comfort level, by means of passive cooling or natural ventilation. On the other hand, wind tools to factor wind into architectural environment design," Energy and Buildings, 36, 1197-1209. #121 Using computational tools to factor wind into architectural environment design Qingyan (Yan) Chen

  20. Generalized second law of thermodynamics on the apparent horizon in modified Gauss-Bonnet gravity

    E-Print Network [OSTI]

    Abdolmaleki, A

    2015-01-01T23:59:59.000Z

    Modified gravity and generalized second law (GSL) of thermodynamics are interesting topics in the modern cosmology. In this regard, we investigate the GSL of gravitational thermodynamics in the framework of modified Gauss-Bonnet gravity or f(G)-gravity. We consider a spatially FRW universe filled with the matter and radiation enclosed by the dynamical apparent horizon with the Hawking temperature. For two viable f(G) models, we first numerically solve the set of differential equations governing the dynamics of f(G)-gravity. Then, we obtain the evolutions of the Hubble parameter, the Gauss-Bonnet curvature invariant term, the density and equation of state parameters as well as the deceleration parameter. In addition, we check the energy conditions for both models and finally examine the validity of the GSL. For the selected f(G) models, we conclude that both models have a stable de Sitter attractor. The equation of state parameters behave quite similar to those of the LCDM model in the radiation/matter dominat...

  1. A Modified Equation for Neural Conductance and Resonance

    E-Print Network [OSTI]

    M. Robert Showalter

    1999-05-06T23:59:59.000Z

    A modified equation, the S-K equation, fits data that the current neural conduction equation, the K-R equation, does not. The S-K equation is a modified Heaviside equation, based on a new interpretation of cross terms. Elements of neural anatomy and function are reviewed to put the S-K equation into context. The fit between S-K and resonance-like neural data is then shown. Appendix 1: Derivation of crossterms that represent combinations of physical laws for a line conductor of finite length. Appendix 2: Evaluation of crossterms that represent combinations of physical laws according to consistency arguments. Appendix 3: Some background on resonance. Appendix 4: Web access to some brain modeling, correspondence with NATURE, and discussion of the work in George Johnson's New York Times forums.

  2. Environment Dependence of Dark Matter Halos in Symmetron Modified Gravity

    E-Print Network [OSTI]

    Hans A. Winther; David F. Mota; Baojiu Li

    2011-10-28T23:59:59.000Z

    We investigate the environment dependence of dark matter halos in the symmetron modified gravity scenario. The symmetron is one of three known mechanisms for screening a fifth-force and thereby recovering General Relativity in dense environments. The effectiveness of the screening depends on both the mass of the object and the environment it lies in. Using high-resolution N-body simulations we find a significant difference, which depends on the halos mass and environment, between the lensing and dynamical masses of dark matter halos similar to the f(R) modified gravity. The symmetron can however yield stronger signatures due to a freedom in the strength of the coupling to matter.

  3. Galactic space-times in modified theories of gravity

    E-Print Network [OSTI]

    Dipanjan Dey; Kaushik Bhattacharya; Tapobrata Sarkar

    2014-07-01T23:59:59.000Z

    We study Bertrand space-times (BSTs), which have been proposed as viable models of space-times seeded by galactic dark matter, in modified theories of gravity. We first critically examine the issue of galactic rotation curves in General Relativity, and establish the usefulness of BSTs to fit experimental data in this context. We then study BSTs in metric $f(R)$ gravity and in Brans-Dicke theories. For the former, the nature of the Newtonian potential is established, and we also compute the effective equation of state and show that it can provide good fits to some recent experimental results. For the latter, we calculate the Brans-Dicke scalar analytically in some limits and numerically in general, and find interesting constraints on the parameters of the theory. Our results provide evidence for the physical nature of Bertrand space-times in modified theories of gravity.

  4. N-body simulations in modified Newtonian dynamics

    E-Print Network [OSTI]

    Carlo Nipoti; Pasquale Londrillo; Luca Ciotti

    2008-11-18T23:59:59.000Z

    We describe some results obtained with N-MODY, a code for N-body simulations of collisionless stellar systems in modified Newtonian dynamics (MOND). We found that a few fundamental dynamical processes are profoundly different in MOND and in Newtonian gravity with dark matter. In particular, violent relaxation, phase mixing and galaxy merging take significantly longer in MOND than in Newtonian gravity, while dynamical friction is more effective in a MOND system than in an equivalent Newtonian system with dark matter.

  5. Resorption Rate Tunable Bioceramic: Si, Zn-Modified Tricalcium Phosphate

    SciTech Connect (OSTI)

    Xiang Wei

    2006-08-09T23:59:59.000Z

    This dissertation is organized in an alternate format. Several manuscripts which have already been published or are to be submitted for publication have been included as separate chapters. Chapter 1 is a general introduction which describes the dissertation organization and introduces the human bone and ceramic materials as bone substitute. Chapter 2 is the background and literature review on dissolution behavior of calcium phosphate, and discussion of motivation for this research. Chapter 3 is a manuscript entitled ''Si,Zn-modified tricalcium phosphate: a phase composition and crystal structure study'', which was published in ''Key Engineering Materials'' [1]. Chapter 4 gives more crystal structure details by neutron powder diffraction, which identifies the position for Si and Zn substitution and explains the stabilization mechanism of the structure. A manuscript entitled ''Crystal structure analysis of Si, Zn-modified Tricalcium phosphate by Neutron Powder Diffraction'' will be submitted to Biomaterials [2]. Chapter 5 is a manuscript, entitled ''Dissolution behavior and cytotoxicity test of Si, Zn-modified tricalcium phosphate'', which is to be submitted to Biomaterials [3]. This paper discusses the additives effect on the dissolution behavior of TCP, and cytotoxicity test result is also included. Chapter 6 is the study of hydrolysis process of {alpha}-tricalcium phosphate in the simulated body fluid, and the phase development during drying process is discussed. A manuscript entitled ''Hydrolysis of {alpha}-tricalcium phosphate in simulated body fluid and phase transformation during drying process'' is to be submitted to Biomaterials [4]. Ozan Ugurlu is included as co-authors in these two papers due to his TEM contributions. Appendix A is the general introduction of the materials synthesis, crystal structure and preliminary dissolution result. A manuscript entitled ''Resorption rate tunable bioceramic: Si and Zn-modified tricalcium phosphate'' was published in Ceramic Engineering and Science Proceedings (the 29th International Conference on Advanced Ceramics and Composites - Advances in Bioceramics and Biocomposites) [5].

  6. Modified Newtonian Dynamics as an extra dimensional effect

    E-Print Network [OSTI]

    W. F. Kao

    2006-03-13T23:59:59.000Z

    Modified Newtonian dynamics can be considered as an effect derived from a squeezable extra dimension space. The third law of Newtonian dynamics can be managed to remain valid in the 5-space. The critical acceleration parameter $a_0$ appears naturally as the bulk acceleration that has to do with the expanding universe in this setup. A simple toy model is presented in this Letter to show that consistent theory can be built with the help of the extra dimensional space.

  7. Qubits entanglement dynamics modified by an effective atomic environment

    E-Print Network [OSTI]

    I. Sainz; A. B. Klimov; Luis Roa

    2005-11-28T23:59:59.000Z

    We study entanglement dynamics of a couple of two-level atoms resonantly interacting with a cavity mode and embedded in a dispersive atomic environment. We show that in the absence of the environment the entanglement reaches its maximum value when only one exitation is involved. Then, we find that the atomic environment modifies that entanglement dynamics and induces a typical collapse-revival structure even for an initial one photon Fock state of the field.

  8. Beyond the growth rate of cosmic structure: Testing modified gravity models with an extra degree of freedom

    E-Print Network [OSTI]

    Burrage, Clare; Seery, David

    2015-01-01T23:59:59.000Z

    In 'modified' gravity the observed acceleration of the universe is explained by changing the gravitational force law or the number of degrees of freedom in the gravitational sector. Both possibilities can be tested by measurements of cosmological structure formation. In this paper we elaborate the details of such tests using the Galileon model as a case study. We pay attention to the possibility that each new degree of freedom may have stochastically independent initial conditions, generating different types of potential well in the early universe and breaking complete correlation between density and velocity power spectra. This 'stochastic bias' can confuse schemes to parametrize the predictions of modified gravity models, such as the use of the growth parameter f alone. Using data from the WiggleZ Dark Energy Survey we show that it will be possible to obtain constraints using information about the cosmological-scale force law embedded in the multipole power spectra of redshift-space distortions. As an examp...

  9. Electrochemical and spectroelectrochemical properties of polyviologen complex modified electrodes

    SciTech Connect (OSTI)

    Akahoshi, H.; Toshima, S.; Itaya, K.

    1981-04-02T23:59:59.000Z

    The electrochemistry and the spectroelectrochemistry of the polymer complex polyviologens-poly(styrenesulfonate) modified electrodes were examined in an aqueous solution. The surface waves observed at -0.65 and -1.20 V vs. SCE were due to reductions of the electrochemical active centers (viologen moieties) in the polymer layer. Excellent stability of the polymer complex modified electrodes was obtained on repeated scanning over the first wave, between +0.5 and -0.8 V vs. SCE, causing only a 5% decrease in the peak height after 100 cycles at a scan rate of 50 mV/s. The redox behavior of Fe(CN)/sub 6//sup 3-/4-/ was examined at the modified electrodes, demonstrating a mediated electron-transfer reaction through the redox centers in the polymer film. The change of the color of the polymer film on electrodes could be seen as red-purple. The absorption coefficient (..cap alpha..) at 560 nm of the polymer film was obtained as 1.7 x 10/sup 4/ cm/sup -1/.

  10. Diffusivity anomaly in modified Stillinger-Weber liquids

    SciTech Connect (OSTI)

    Sengupta, Shiladitya [TIFR Centre for Interdisciplinary Sciences, 21 Brundavan Colony, Narsingi, Hyderabad 500089 (India)] [TIFR Centre for Interdisciplinary Sciences, 21 Brundavan Colony, Narsingi, Hyderabad 500089 (India); Vasisht, Vishwas V. [Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur Campus, Bangalore 560064 (India)] [Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur Campus, Bangalore 560064 (India); Sastry, Srikanth [TIFR Centre for Interdisciplinary Sciences, 21 Brundavan Colony, Narsingi, Hyderabad 500089 (India) [TIFR Centre for Interdisciplinary Sciences, 21 Brundavan Colony, Narsingi, Hyderabad 500089 (India); Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur Campus, Bangalore 560064 (India)

    2014-01-28T23:59:59.000Z

    By modifying the tetrahedrality (the strength of the three body interactions) in the well-known Stillinger-Weber model for silicon, we study the diffusivity of a series of model liquids as a function of tetrahedrality and temperature at fixed pressure. Previous work has shown that at constant temperature, the diffusivity exhibits a maximum as a function of tetrahedrality, which we refer to as the diffusivity anomaly, in analogy with the well-known anomaly in water upon variation of pressure at constant temperature. We explore to what extent the structural and thermodynamic changes accompanying changes in the interaction potential can help rationalize the diffusivity anomaly, by employing the Rosenfeld relation between diffusivity and the excess entropy (over the ideal gas reference value), and the pair correlation entropy, which provides an approximation to the excess entropy in terms of the pair correlation function. We find that in the modified Stillinger-Weber liquids, the Rosenfeld relation works well above the melting temperatures but exhibits deviations below, with the deviations becoming smaller for smaller tetrahedrality. Further we find that both the excess entropy and the pair correlation entropy at constant temperature go through maxima as a function of the tetrahedrality, thus demonstrating the close relationship between structural, thermodynamic, and dynamical anomalies in the modified Stillinger-Weber liquids.

  11. Journal Information Journal Impact Factor

    E-Print Network [OSTI]

    Krejcí, Pavel

    Journal Information Journal Impact Factor 5-Year Journal Impact Factor Journal Self Cites Journal Immediacy Index Journal Cited Half-Life 2012 JCR Science Edition Journal: CZECHOSLOVAK MATHEMATICAL JOURNAL Mark Journal Title ISSN Total Cites Impact Factor 5-Year Impact Factor Immediacy Index Citable Items

  12. Monthly energy review, January 1996

    SciTech Connect (OSTI)

    NONE

    1996-01-01T23:59:59.000Z

    This document presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of U.S. production, consumption, trade, stocks, and prices for petroleum,natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal metric conversion factors.

  13. Monthly energy review, November 1995

    SciTech Connect (OSTI)

    NONE

    1995-11-01T23:59:59.000Z

    This document presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. International energy and thermal and metric conversion factors are included.

  14. Monthly Energy Review, February 1996

    SciTech Connect (OSTI)

    NONE

    1996-02-26T23:59:59.000Z

    This monthly publication presents an overview of EIA`s recent monthly energy statistics, covering the major activities of U.S. production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. Two brief descriptions (`energy plugs`) on two EIA publications are presented at the start.

  15. Monthly energy review, July 1996

    SciTech Connect (OSTI)

    NONE

    1996-07-01T23:59:59.000Z

    This document presents an overview of the recent monthly energy statistics from the Energy Information Administration (EIA). Statistical data covers activities of U.S. production, consumption, trade, stocks, and prices for fossil fuels , nuclear energy, and electricity. Also included are international energy and thermal and metric conversion factors.

  16. Monthly energy review, April 1999

    SciTech Connect (OSTI)

    NONE

    1999-04-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. The MER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public.

  17. Monthly energy review, December 1991

    SciTech Connect (OSTI)

    Not Available

    1991-12-23T23:59:59.000Z

    This publication contains data and informative feature articles pertaining to various energy sources. The following topics are discussed: Section 1. energy overview; section 2. energy consumption; Section 3. petroleum; Section 4. natural gas; Section 5. Oil and gas resource development; Section 6. Coal; Section 7. electricity; Section 8. nuclear energy; Section 9. energy prices and Section 10. international energy. Appendix conversion factors a glossary is included. 57 tabs.,

  18. Monthly energy review, August 1998

    SciTech Connect (OSTI)

    NONE

    1998-08-01T23:59:59.000Z

    The Monthly Energy Review (MER) presents an overview of the Energy Information Administration`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. The MER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. 37 figs., 73 tabs.

  19. Lorentz Coherence and the Proton Form Factor

    E-Print Network [OSTI]

    Kim, Young S

    2015-01-01T23:59:59.000Z

    The dipole cutoff behavior for the proton form factor has been and still is one of the major issues in high-energy physics. It is shown that this dipole behavior comes from the coherence between the Lorentz contraction of the proton size and the decreasing wavelength of the incoming photon signal. The contraction rates are the same for both cases. This form of coherence is studied also in the momentum-energy space. The coherence effect in this space can be explained in terms of two overlapping wave functions.

  20. Lorentz Coherence and the Proton Form Factor

    E-Print Network [OSTI]

    Young S. Kim

    2015-02-28T23:59:59.000Z

    The dipole cutoff behavior for the proton form factor has been and still is one of the major issues in high-energy physics. It is shown that this dipole behavior comes from the coherence between the Lorentz contraction of the proton size and the decreasing wavelength of the incoming photon signal. The contraction rates are the same for both cases. This form of coherence is studied also in the momentum-energy space. The coherence effect in this space can be explained in terms of two overlapping wave functions.

  1. Self-gravitating clouds of generalized Chaplygin and modified anti-Chaplygin Gases

    E-Print Network [OSTI]

    T. C. Lipscombe

    2008-12-08T23:59:59.000Z

    The Chaplygin gas has been proposed as a possible dark energy, dark matter candidate. As a working fluid in a Friedmann-Robertson-Walker universe, it exhibits early behavior reminiscent of dark matter, but at later times is more akin to a cosmological constant. In any such universe, however, one can expect local perturbations to form. Here we obtain the general equations for a self-gravitating relativistic Chaplygin gas. We solve these equations and obtain the mass-radius relationship for such structures, showing that only in the phantom regime is the mass-radius relationship large enough to be a serious candidate for highly compact massive objects at the galaxy core. In addition, we study the cosmology of a modified anti-Chaplygin gas. A self-gravitating cloud of this matter is an exact solution to Einstein's equations.

  2. Dark Energy From Fifth Dimension

    E-Print Network [OSTI]

    H. Alavirad; N. Riazi

    2008-01-21T23:59:59.000Z

    Observational evidence for the existence of dark energy is strong. Here we suggest a model which is based on a modified gravitational theory in 5D and interpret the 5th dimension as a manifestation of dark energy in the 4D observable universe. We also obtain an equation of state parameter which varies with time. Finally, we match our model with observations by choosing the free parameters of the model.

  3. Thin Metal Oxide Films to Modify a Window Layer in CdTe-Based...

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

    Thin Metal Oxide Films to Modify a Window Layer in CdTe-Based Solar Cells for Improved Performance. Thin Metal Oxide Films to Modify a Window Layer in CdTe-Based Solar Cells for...

  4. Degradation of perchloroethylene and nitrate by high-activity modified green rusts 

    E-Print Network [OSTI]

    Choi, Jeong Yun

    2006-10-30T23:59:59.000Z

    produce high-activity modified green rusts (HMGRs) that demonstrate higher degradation rates. Methods of modifying GRs to obtain high reactivity for degradation of PCE and nitrate were developed and reduction kinetics of PCE and nitrate by HMGRs were...

  5. Human Factors Aspects of Advanced Process Control

    E-Print Network [OSTI]

    Shaw, J. A.

    HUMAN FACTORS ASPECTS OF ADVANCED PRO?CESS CONTROL John A. Shaw Combustion Engineering Taylor Instrument Division Rochester, New York ABSTRACT Energy conservation practices, such as heat recovery and integration, require that many... chemical and related processes use advanced control systems. Many of the more advanced process control strategies and algorithms can cause operator confusion, leading to incorrect operator actions and negating the advantages of the advanced control...

  6. $?$ and $?'$ transition form factors from Padé approximants

    E-Print Network [OSTI]

    Pablo Sanchez-Puertas; Pere Masjuan

    2014-11-17T23:59:59.000Z

    We employ a systematic and model-independent method to extract, from space- and time-like data, the $\\eta$ and $\\eta'$ transition form factors (TFFs) obtaining the most precise determination for their low-energy parameters and discuss the $\\Gamma_{\\eta\\rightarrow\\gamma\\gamma}$ impact on them. Using TFF data alone, we also extract the $\\eta-\\eta'$ mixing parameters, which are compatible to those obtained from more sophisticated and input-demanding procedures.

  7. Measurement of the ??*?? and ??*??' transition form factors

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

    del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu.?G.; Lynch, G.; Osipenkov, I. L.; Koch, H.; Schroeder, T.; Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Khan, A.; Blinov, V. E.; Botov, A. A.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu.?I.; Solodov, E. P.; Todyshev, K.?Yu.; Yushkov, A. N.; Bondioli, M.; Curry, S.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Martin, E. C.; Stoker, D. P.; Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C. A.; Eisner, A. M.; Heusch, C. A.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Winstrom, L. O.; Cheng, C. H.; Doll, D. A.; Echenard, B.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.; Andreassen, R.; Dubrovin, M. S.; Meadows, B. T.; Sokoloff, M. D.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.; Ayad, R.; Toki, W. H.; Jasper, H.; Petzold, A.; Spaan, B.; Kobel, M. J.; Schubert, K. R.; Schwierz, R.; Bernard, D.; Verderi, M.; Clark, P. J.; Playfer, S.; Watson, J. E.; Andreotti, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cecchi, A.; Cibinetto, G.; Fioravanti, E.; Franchini, P.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.; Petrella, A.; Piemontese, L.; Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Nicolaci, M.; Pacetti, S.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Lee, C. L.; Morii, M.; Edwards, A. J.; Adametz, A.; Marks, J.; Uwer, U.; Bernlochner, F. U.; Ebert, M.; Lacker, H. M.; Lueck, T.; Volk, A.; Dauncey, P. D.; Tibbetts, M.; Behera, P. K.; Mallik, U.; Chen, C.; Cochran, J.; Crawley, H. B.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. E.; Gritsan, A. V.; Guo, Z. J.; Arnaud, N.; Davier, M.; Derkach, D.; Firmino da Costa, J.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Perez, A.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wang, L.; Wormser, G.; Lange, D. J.; Wright, D. M.; Bingham, I.; Chavez, C. A.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Hutchcroft, D. E.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.; Cowan, G.; Paramesvaran, S.; Wren, A. C.; Brown, D. N.; Davis, C. L.; Denig, A. G.; Fritsch, M.; Gradl, W.; Hafner, A.; Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.; Anderson, J.; Cenci, R.; Jawahery, A.; Roberts, D. A.; Simi, G.; Tuggle, J. M.; Dallapiccola, C.; Salvati, E.; Cowan, R.; Dujmic, D.; Sciolla, G.; Zhao, M.; Lindemann, D.; Patel, P. M.; Robertson, S. H.; Schram, M.; Biassoni, P.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.; Nguyen, X.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Raven, G.; Snoek, H. L.; Jessop, C. P.; Knoepfel, K. J.; LoSecco, J. M.; Wang, W. F.; Corwin, L. A.; Honscheid, K.; Kass, R.; Blount, N. L.; Brau, J.; Frey, R.; Igonkina, O.; Kolb, J. A.; Rahmat, R.; Sinev, N. B.; Strom, D.; Strube, J.; Torrence, E.; Castelli, G.; Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Prendki, J.; Sitt, S.; Biasini, M.; Manoni, E.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Paoloni, E.; Rizzo, G.; Walsh, J. J.; Lopes Pegna, D.; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Baracchini, E.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Mazzoni, M. A.; Piredda, G.; Renga, F.; Buenger, C.; Hartmann, T.; Leddig, T.; Schröder, H.; Waldi, R.; Adye, T.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yèche, Ch.; Allen, M. T.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Franco Sevilla, M.; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.

    2011-09-01T23:59:59.000Z

    We study the reactions e?e??e?e??(') in the single-tag mode and measure the ??*??(') transition form factors in the momentum-transfer range from 4 to 40 GeV². The analysis is based on 469 fb?¹ of integrated luminosity collected at PEP-II with the BABAR detector at e?e? center-of-mass energies near 10.6 GeV.

  8. Parton Energy Loss with Detailed Balance

    E-Print Network [OSTI]

    Enke Wang; Xin-Nian Wang

    2001-06-28T23:59:59.000Z

    Stimulated gluon emission and thermal absorption in addition to induced radiation are considered for an energetic parton propagating inside a quark- gluon plasma. In the presence of thermal gluons, stimulated emission reduces while absorption increases the parton's energy. The net effect is a reduction of the parton energy loss. Though decreasing asymptotically as $T/E$ with the parton energy, the relative reduction is found to be important for intermediate energies. The modified energy dependence of the energy loss will affect the shape of suppression of moderately high $p_T$ hadrons due to jet quenching in high-energy heavy-ion collisions.

  9. Energy Tracking Software Platform

    SciTech Connect (OSTI)

    Ryan Davis; Nathan Bird; Rebecca Birx; Hal Knowles

    2011-04-04T23:59:59.000Z

    Acceleration has created an interactive energy tracking and visualization platform that supports decreasing electric, water, and gas usage. Homeowners have access to tools that allow them to gauge their use and track progress toward a smaller energy footprint. Real estate agents have access to consumption data, allowing for sharing a comparison with potential home buyers. Home builders have the opportunity to compare their neighborhood's energy efficiency with competitors. Home energy raters have a tool for gauging the progress of their clients after efficiency changes. And, social groups are able to help encourage members to reduce their energy bills and help their environment. EnergyIT.com is the business umbrella for all energy tracking solutions and is designed to provide information about our energy tracking software and promote sales. CompareAndConserve.com (Gainesville-Green.com) helps homeowners conserve energy through education and competition. ToolsForTenants.com helps renters factor energy usage into their housing decisions.

  10. Reducing Power Factor Cost

    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, 2012Energy ReliabilityNews FlashesRedbirdPetroleum, One

  11. A Geothermal District-Heating System and Alternative Energy Research...

    Open Energy Info (EERE)

    District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title A...

  12. South Korea Public Preferences for Genetically Modified Foods: a Random Parameter Model

    E-Print Network [OSTI]

    Neimark, Alexander V.

    South Korea Public Preferences for Genetically Modified Foods: a Random Parameter Model Benjamin for Genetically Modified Foods: a Random Parameter Model Abstract Food biotechnology promises to deliver a wide foods for Southern Korea. #12;South Korea public Preferences for Genetically Modified Foods: a Random

  13. 96 Journal of Student Research in Environmental Science at Appalachian Genetically Modified Maize (Bt corn) and

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    to produce their own pesticides or insecticides. The engineering of genetically modified food is a rel96 Journal of Student Research in Environmental Science at Appalachian Genetically Modified Maize the short-term effects of genetically modified (GM) maize, specifically MON810 and MON863, on laboratory

  14. 596revision:1997-03-23modified:1997-03-23 Some independence results on reflection

    E-Print Network [OSTI]

    Shelah, Saharon

    596revision:1997-03-23modified:1997-03-23 Some independence results on reflection James Cummings;596revision:1997-03-23modified:1997-03-23 Baumgartner proved in [1] that if is weakly compact, GCH holds sense the strong non-reflection principle captures 2 #12;596revision:1997-03-23modified:1997

  15. Top Quark Mass Measurement in the Lepton plus Jets Channel Using a Modified Matrix Element Method

    SciTech Connect (OSTI)

    Aaltonen, T.; /Helsinki Inst. of Phys.; Adelman, J.; /Chicago U., EFI; Akimoto, T.; /Tsukuba U.; Alvarez Gonzalez, B.; /CSIC, Catalunya; Amerio, S.; /INFN, Padua; Amidei, D.; /Michigan U.; Anastassov, A.; /Northwestern U.; Annovi, A.; /Frascati; Antos, J.; /Comenius U.; Apollinari, G.; /Fermilab; Apresyan, A.; /Purdue U. /Waseda U.

    2008-12-01T23:59:59.000Z

    The authors report a measurement of the top quark mass, m{sub t}, obtained from p{bar p} collisions at {radical}s = 1.96 TeV at the Fermilab Tevatron using the CDF II detector. They analyze a sample corresponding to an integrated luminosity of 1.9 rfb{sup -1}. They select events with an electron or muon, large missing transverse energy, and exactly four high-energy jets in the central region of the detector, at least one of which is tagged as coming from a b quark. They calculate a signal likelihood using a matrix element integration method, where the matrix element is modified by using effective propagators to take into account assumptions on event kinematics. The event likelihood is a function of m{sub t} and a parameter JES that determines in situ the calibration of the jet energies. They use a neural network discriminant to distinguish signal from background events. They also apply a cut on the peak value of each event likelihood curve to reduce the contribution of background and badly reconstructed events. Using the 318 events that pass all selection criteria, they find m{sub t} = 172.7 {+-} 1.8 (stat. + JES) {+-} 1.2(syst.) GeV/c{sup 2}.

  16. Factors Affecting Photosynthesis!

    E-Print Network [OSTI]

    Kudela, Raphael M.

    grow faster, die younger as temperature increases ·In general, warm water species are smaller and have transporters (nutrients) It slows down (curves) because the dark reactions can't process fast enough Light and NADPH Therefore, some of the energy from PSII and PSI goes to nutrients, NOT to the Calvin- Benson

  17. Solar Correction Factors of Building Envelope in Tebei

    E-Print Network [OSTI]

    Wang, D.; Tang, M.

    2006-01-01T23:59:59.000Z

    Tebei has very rich solar energy in China and needs heating in winter,but the present energy building design code has no solar correction factor for the overall heat transfer coefficient of building envelope for Tebei. Based on the typical year...

  18. Solar Correction Factors of Building Envelope in Tebei 

    E-Print Network [OSTI]

    Wang, D.; Tang, M.

    2006-01-01T23:59:59.000Z

    Tebei has very rich solar energy in China and needs heating in winter,but the present energy building design code has no solar correction factor for the overall heat transfer coefficient of building envelope for Tebei. Based on the typical year...

  19. Hydrogen peroxide modified sodium titanates with improved sorption capabilities

    DOE Patents [OSTI]

    Nyman, May D. (Albuquerque, NM); Hobbs, David T. (North Augusta, SC)

    2009-02-24T23:59:59.000Z

    The sorption capabilities (e.g., kinetics, selectivity, capacity) of the baseline monosodium titanate (MST) sorbent material currently being used to sequester Sr-90 and alpha-emitting radioisotopes at the Savannah River Site are significantly improved when treated with hydrogen peroxide; either during the original synthesis of MST, or, as a post-treatment step after the MST has been synthesized. It is expected that these peroxide-modified MST sorbent materials will have significantly improved sorption capabilities for non-radioactive cations found in industrial processes and waste streams.

  20. Spherical thin-shell wormholes and modified Chaplygin gas

    SciTech Connect (OSTI)

    Sharif, M.; Azam, M., E-mail: msharif.math@pu.edu.pk, E-mail: azammath@gmail.com [Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, Lahore-54590 (Pakistan)

    2013-05-01T23:59:59.000Z

    The purpose of this paper is to construct spherical thin-shell wormhole solutions through cut and paste technique and investigate the stability of these solutions in the vicinity of modified Chaplygin gas. The Darmois-Israel formalism is used to formulate the stresses of the surface concentrating the exotic matter. We explore the stability of the wormhole solutions by using the standard potential method. We conclude that there exist more stable as well as unstable solutions than the previous study with generalized Chaplygin gas [19].

  1. Quantized Media with Absorptive Scatterers and Modified Atomic Emission Rates

    E-Print Network [OSTI]

    L. G. Suttorp; A. J. van Wonderen

    2011-02-14T23:59:59.000Z

    Modifications in the spontaneous emission rate of an excited atom that are caused by extinction effects in a nearby dielectric medium are analyzed in a quantummechanical model, in which the medium consists of spherical scatterers with absorptive properties. Use of the dyadic Green function of the electromagnetic field near a a dielectric sphere leads to an expression for the change in the emission rate as a series of multipole contributions for which analytical formulas are obtained. The results for the modified emission rate as a function of the distance between the excited atom and the dielectric medium show the influence of both absorption and scattering processes.

  2. Cosmological Exact Solutions in Some Modified Gravitational Theories

    E-Print Network [OSTI]

    Yousef Bisabr

    2015-04-22T23:59:59.000Z

    In a homogenous and isotropic cosmology, we introduce general exact solutions for some modified gravity models. In particular, we introduce exact solutions for power-law $f(R)$ gravity and Brans-Dicke theory in Einstein and Jordan conformal frames. In the Brans-Dicke case, the solutions are presented for both single and double exponential potentials in Einstein frame which correspond to power-law potentials in Jordan frame. Our analysis for extracting general exact solutions can also be generalized to those scalar-tensor theories in which the scalar field has an exponential coupling to Ricci scalar.

  3. High temperature performance of scrap tire rubber modified asphalt concrete

    SciTech Connect (OSTI)

    Coomarasamy, A. [Ministry of Transportation, Downsview, Ontario (Canada); Manolis, S.; Hesp, S. [Queen`s Univ., Kingston, Ontario (Canada)

    1996-12-31T23:59:59.000Z

    Wheel track rutting tests on mixes modified with 30 mesh, 80 mesh, and very fine colloidal crumb rubber particles show that a very significant improvement in performance occurs with a reduction in the rubber particle size. The SHRP binder test for rutting, which was originally developed for homogeneous systems only, does not predict the performance improvement for smaller rubber particles. If these new scrap rubber binder systems are to be used in pavements then rutting tests on the asphalt-aggregate mixture should be conducted in order to accurately predict high temperature performance.

  4. On the vacuum fluctuations, Pioneer Anomaly and Modified Newtonian Dynamics

    E-Print Network [OSTI]

    Dragan Slavkov Hajdukovic

    2011-02-08T23:59:59.000Z

    We argue that the so-called "Pioneer Anomaly" is related to the quantum vacuum fluctuations. Our approach is based on the hypothesis of the gravitational repulsion between matter and antimatter, what allows considering, the virtual particle-antiparticle pairs in the physical vacuum, as gravitational dipoles. Our simplified calculations indicate that the anomalous deceleration of the Pioneer spacecrafts could be a consequence of the vacuum polarization in the gravitational field of the Sun. At the large distances, the vacuum polarization by baryonic matter could mimic dark matter what opens possibility that dark matter do not exist, as advocated by the Modified Newtonian Dynamics (MOND).

  5. Modified SIMD architecture suitable for single-chip implementation

    E-Print Network [OSTI]

    Junichiro Makino

    2005-09-11T23:59:59.000Z

    We describe a modified SIMD architecture suitable for single-chip integration of a large number of processing elements, such as 1,000 or more. Important differences from traditional SIMD designs are: a) The size of the memory per processing elements is kept small. b) The processors are organized into groups, each with a small buffer memory. Reduction operation over the groups is done in hardware. The first change allows us to integrate a very large number of processing elements into a single chip. The second change allows us to achieve a close-to-peak performance for many scientific applications like particle-based simulations and dense-matrix operations.

  6. Cosmological Exact Solutions in Some Modified Gravitational Theories

    E-Print Network [OSTI]

    Yousef Bisabr

    2015-05-04T23:59:59.000Z

    In a homogenous and isotropic cosmology, we introduce general exact solutions for some modified gravity models. In particular, we introduce exact solutions for power-law $f(R)$ gravity and Brans-Dicke theory in Einstein and Jordan conformal frames. In the Brans-Dicke case, the solutions are presented for both single and double exponential potentials in Einstein frame which correspond to power-law potentials in Jordan frame. Our analysis for extracting general exact solutions can also be generalized to those scalar-tensor theories in which the scalar field has an exponential coupling to Ricci scalar.

  7. Cosmological Exact Solutions in Some Modified Gravitational Theories

    E-Print Network [OSTI]

    Bisabr, Yousef

    2015-01-01T23:59:59.000Z

    In a homogenous and isotropic cosmology, we introduce general exact solutions for some modified gravity models. In particular, we introduce exact solutions for power-law $f(R)$ gravity and Brans-Dicke theory in Einstein and Jordan conformal frames. In the Brans-Dicke case, the solutions are presented for both single and double exponential potentials in Einstein frame which correspond to power-law potentials in Jordan frame. Our analysis for extracting general exact solutions can also be generalized to those scalar-tensor theories in which the scalar field has an exponential coupling to Ricci scalar.

  8. Regulating the Regulators: The Increased Role for the Federal Judiciary in Monitoring the Debate over Genetically Modified Crops

    E-Print Network [OSTI]

    Denton, Blake

    2007-01-01T23:59:59.000Z

    Regulation of Genetically Modified Foods, 35 U. MICH. J.L.Over Labeling of Genetically Modified Foods in the UnitedPolicy on Genetically Modified Food and Agriculture, 44 B.C.

  9. Factorization of the Cross Section for the {sup 12}C(p,p{alpha}){sup 8}Be(g.s.) Reaction at an Incident Energy of 100 MeV

    SciTech Connect (OSTI)

    Cowley, A. A.; Mabiala, J. [iThemba LABS, PO Box 722, Somerset West 7129 (South Africa); Physics Department, Stellenbosch University, Private Bag X1, Matieland 7602 (South Africa); Buthelezi, E. Z.; Foertsch, S. V.; Neveling, R.; Smit, F. D.; Steyn, G. F. [iThemba LABS, PO Box 722, Somerset West 7129 (South Africa); Zyl, J. J. van [Physics Department, Stellenbosch University, Private Bag X1, Matieland 7602 (South Africa)

    2009-08-26T23:59:59.000Z

    Cross sections and analyzing powers for the reaction {sup 12}C(p,p{alpha}){sup 8}Be at an incident energy of 100 MeV, measured over a range of quasifree scattering angle pairs, are compared with elastic scattering of protons from {sup 4}He. Remarkable agreement between angular distributions of the two sets of data, presented as a function of the scattering angle in the two-body centre-of mass, is found. Thus the {alpha}-cluster reacts to the projectile just like a free particle.

  10. Essays on the Economics of Environmental Issues: The Environmental Kuznets Curve to Optimal Energy Portfolios

    E-Print Network [OSTI]

    Meininger, Aaron G.

    2012-01-01T23:59:59.000Z

    Factors are Most Supportive to Green Energy Penetrationare Most Supportive to Green Energy Penetration Introductionin the di?usion of green energy technology. After this

  11. Preliminary Findings from an Analysis of Building Energy Information System Technologies

    E-Print Network [OSTI]

    Granderson, Jessica

    2009-01-01T23:59:59.000Z

    4) enterprise energy management (EEM) tools [Motegi 2003].Facilimetrix, Energy WorkSite, EEM Suite, Pulse Energy).with client zip codes • Ion EEM determines emissions factors

  12. One of These Homes is Not Like the Other: Residential Energy Consumption Variability

    E-Print Network [OSTI]

    Kelsven, Phillip

    2013-01-01T23:59:59.000Z

    the total annual energy consumption. The behavior patternsin total residential energy consumption per home, even whenthe variability in energy consumption can vary by factors of

  13. EIA - Annual Energy Outlook (AEO) 2011 Data Tables

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

    75. Imported Liquids by Source XLS Table 76. Conversion Factors XLS About the Annual Energy Outlook Contact Information and Staff About the National Energy Modeling System (NEMS)...

  14. Structural effects on the oxidation of HCOOH by bismuth-modified Pt(111) electrodes with (100) monatomic steps

    SciTech Connect (OSTI)

    Smith, S.P.E.; Ben-Dor, K.F.; Abruna, H.D.

    1999-10-12T23:59:59.000Z

    Significant enhancements in the electrocatalytic oxidation of HCOOH are obtained on deliberately stepped platinum surfaces with (111) terraces and (100) monatomic steps when bismuth is deposited on terrace and/or step sites. The bismuth-modified surfaces with higher step densities/narrower terrace widths exhibit higher catalytic activity in the oxidation of HCOOH than surfaces with lower step densities/wider terrace widths, behavior which is opposite to that exhibited by the analogous bare (unmodified) surfaces. For Bi/Pt(544) and Bi/Pt(755), with nine- and six-atom wide (111) terraces, respectively, maximum catalytic behavior occurs when bismuth is deposited only on the steps, suggesting that a critical ensemble (critical size), two atoms wide, enhances the reactive intermediate pathway for the complete oxidation of HCOOH over the poisoning reaction pathway. Moreover, the potential for the onset of oxidation of HCOOH shifts to less positive potentials as the terrace width of the bismuth-modified surfaces becomes narrower, suggesting a diminution in the activation energy barrier as the ensemble size becomes smaller. Contrary to the behavior on the stepped surfaces, bismuth-modified, polyoriented spherical platinum electrodes, which contain a random distribution of (111), (100), and (110) faces, exhibit a continuous rise in catalytic activity for HCOOH oxidation with bismuth coverage, even at bismuth coverages approaching 100%.

  15. Nucleon Electromagnetic Form Factors

    SciTech Connect (OSTI)

    Marc Vanderhaeghen; Charles Perdrisat; Vina Punjabi

    2007-10-01T23:59:59.000Z

    There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at JLab, MAMI, and MIT-Bates. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.

  16. Modified Gravity N-body Code Comparison Project

    E-Print Network [OSTI]

    Hans A. Winther; Fabian Schmidt; Alexandre Barreira; Christian Arnold; Sownak Bose; Claudio Llinares; Marco Baldi; Bridget Falck; Wojciech A. Hellwing; Kazuya Koyama; Baojiu Li; David F. Mota; Ewald Puchwein; Robert Smith; Gong-Bo Zhao

    2015-06-21T23:59:59.000Z

    Self-consistent ${\\it N}$-body simulations of modified gravity models are a key ingredient to obtain rigorous constraints on deviations from General Relativity using large-scale structure observations. This paper provides the first detailed comparison of the results of different ${\\it N}$-body codes for the $f(R)$, DGP, and Symmetron models, starting from the same initial conditions. We find that the fractional deviation of the matter power spectrum from $\\Lambda$CDM agrees to better than $1\\%$ up to $k \\sim 5-10~h/{\\rm Mpc}$ between the different codes. These codes are thus able to meet the stringent accuracy requirements of upcoming observational surveys. All codes are also in good agreement in their results for the velocity divergence power spectrum, halo abundances and halo profiles. We also test the quasi-static limit, which is employed in most modified gravity ${\\it N}$-body codes, for the Symmetron model for which the most significant non-static effects among the models considered are expected. We conclude that this limit is a very good approximation for all of the observables considered here.

  17. Carbon dioxide pressure swing adsorption process using modified alumina adsorbents

    DOE Patents [OSTI]

    Gaffney, T.R.; Golden, T.C.; Mayorga, S.G.; Brzozowski, J.R.; Taylor, F.W.

    1999-06-29T23:59:59.000Z

    A pressure swing adsorption process for absorbing CO[sub 2] from a gaseous mixture containing CO[sub 2] comprises introducing the gaseous mixture at a first pressure into a reactor containing a modified alumina adsorbent maintained at a temperature ranging from 100 C and 500 C to adsorb CO[sub 2] to provide a CO[sub 2] laden alumina adsorbent and a CO[sub 2] depleted gaseous mixture and contacting the CO[sub 2] laden adsorbent with a weakly adsorbing purge fluid at a second pressure which is lower than the first pressure to desorb CO[sub 2] from the CO[sub 2] laden alumina adsorbent. The modified alumina adsorbent which is formed by depositing a solution having a pH of 3.0 or more onto alumina and heating the alumina to a temperature ranging from 100 C and 600 C, is not degraded by high concentrations of water under process operating conditions. 1 fig.

  18. Carbon dioxide pressure swing adsorption process using modified alumina adsorbents

    DOE Patents [OSTI]

    Gaffney, Thomas Richard (Allentown, PA); Golden, Timothy Christopher (Allentown, PA); Mayorga, Steven Gerard (Allentown, PA); Brzozowski, Jeffrey Richard (Bethlehem, PA); Taylor, Fred William (Allentown, PA)

    1999-01-01T23:59:59.000Z

    A pressure swing adsorption process for absorbing CO.sub.2 from a gaseous mixture containing CO.sub.2 comprising introducing the gaseous mixture at a first pressure into a reactor containing a modified alumina adsorbent maintained at a temperature ranging from 100.degree. C. and 500.degree. C. to adsorb CO.sub.2 to provide a CO.sub.2 laden alumina adsorbent and a CO.sub.2 depleted gaseous mixture and contacting the CO.sub.2 laden adsorbent with a weakly adsorbing purge fluid at a second pressure which is lower than the first pressure to desorb CO.sub.2 from the CO.sub.2 laden alumina adsorbent. The modified alumina adsorbent which is formed by depositing a solution having a pH of 3.0 or more onto alumina and heating the alumina to a temperature ranging from 100.degree. C. and 600.degree. C., is not degraded by high concentrations of water under process operating conditions.

  19. Unscreening modified gravity in the matter power spectrum

    E-Print Network [OSTI]

    Lucas Lombriser; Fergus Simpson; Alexander Mead

    2015-01-20T23:59:59.000Z

    Viable modifications of gravity that may produce cosmic acceleration need to be screened in high-density regions such as the Solar System, where general relativity is well tested. Screening mechanisms also prevent strong anomalies in the large-scale structure and limit the constraints that can be inferred on these gravity models from cosmology. We find that by suppressing the contribution of the screened high-density regions in the matter power spectrum, allowing a greater contribution of unscreened low densities, modified gravity models can be more readily discriminated from the concordance cosmology. Moreover, by variation of density thresholds, degeneracies with other effects may be dealt with more adequately. Specializing to chameleon gravity as a worked example for screening in modified gravity, employing N-body simulations of f(R) models and the halo model of chameleon theories, we demonstrate the effectiveness of this method. We find that a percent-level measurement of the clipped power at k Solar System tests or distance indicators in unscreened dwarf galaxies.

  20. Unscreening modified gravity in the matter power spectrum

    E-Print Network [OSTI]

    Lombriser, Lucas; Mead, Alexander

    2015-01-01T23:59:59.000Z

    Viable modifications of gravity that may produce cosmic acceleration need to be screened in high-density regions such as the Solar System, where general relativity is well tested. Screening mechanisms also prevent strong anomalies in the large-scale structure and limit the constraints that can be inferred on these gravity models from cosmology. We find that by suppressing the contribution of the screened high-density regions in the matter power spectrum, allowing a greater contribution of unscreened low densities, modified gravity models can be more readily discriminated from the concordance cosmology. Moreover, by variation of density thresholds, degeneracies with other effects may be dealt with more adequately. Specializing to chameleon gravity as a worked example for screening in modified gravity, employing N-body simulations of f(R) models and the halo model of chameleon theories, we demonstrate the effectiveness of this method. We find that a percent-level measurement of the clipped power at k < 0.3 h...

  1. Morphological studies on block copolymer modified PA 6 blends

    SciTech Connect (OSTI)

    Poindl, M., E-mail: marcus.poindl@ikt.uni-stuttgart.de, E-mail: christian.bonten@ikt.uni-stuttgart.de; Bonten, C., E-mail: marcus.poindl@ikt.uni-stuttgart.de, E-mail: christian.bonten@ikt.uni-stuttgart.de [Institut für Kunststofftechnik, University of Stuttgart (Germany)

    2014-05-15T23:59:59.000Z

    Recent studies show that compounding polyamide 6 (PA 6) with a PA 6 polyether block copolymers made by reaction injection molding (RIM) or continuous anionic polymerization in a reactive extrusion process (REX) result in blends with high impact strength and high stiffness compared to conventional rubber blends. In this paper, different high impact PA 6 blends were prepared using a twin screw extruder. The different impact modifiers were an ethylene propylene copolymer, a PA PA 6 polyether block copolymer made by reaction injection molding and one made by reactive extrusion. To ensure good particle matrix bonding, the ethylene propylene copolymer was grafted with maleic anhydride (EPR-g-MA). Due to the molecular structure of the two block copolymers, a coupling agent was not necessary. The block copolymers are semi-crystalline and partially cross-linked in contrast to commonly used amorphous rubbers which are usually uncured. The combination of different analysis methods like atomic force microscopy (AFM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) gave a detailed view in the structure of the blends. Due to the partial cross-linking, the particles of the block copolymers in the blends are not spherical like the ones of ethylene propylene copolymer. The differences in molecular structure, miscibility and grafting of the impact modifiers result in different mechanical properties and different blend morphologies.

  2. Packaging design criteria modified fuel spacer burial box. Revision 1

    SciTech Connect (OSTI)

    Stevens, P.F.

    1994-09-13T23:59:59.000Z

    Various Hanford facilities must transfer large radioactively contaminated items to burial/storage. Presently, there are eighteen Fuel Spacer Burial Boxes (FSBBs) available on the Hanford Site for transport of such items. Previously, the FSBBS were transported from a rail car to the burial trench via a drag-off operation. To allow for the lifting of the boxes into the burial trench, it will be necessary to improve the packagings lifting attachments and provide structural reinforcement. Additional safety improvements to the packaging system will be provided by the addition of a positive closure system and package ventilation. FSBBs that are modified in such a manner are referred to as Modified Fuel Spacer Burial Boxes (MFSBs). The criteria provided by this PDC will be used to demonstrate that the transfer of the MFSB will provide an equivalent degree of safety as would be provided by a package meeting offsite transportation requirements. This fulfills the onsite transportation safety requirements implemented in WHC-CM-2-14, Hazardous Material Packaging and Shipping. A Safety Analysis Report for Packaging (SARP) will be prepared to evaluate the safety of the transfer operation. Approval of the SARP is required to authorize transfer. Criteria are also established to ensure burial requirements are met.

  3. Identification of toroidal field errors in a modified betatron accelerator

    SciTech Connect (OSTI)

    Loschialpo, P. (Beam Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States)); Marsh, S.J. (SFA Inc., Landover, Maryland 20785 (United States)); Len, L.K.; Smith, T. (FM Technologies Inc., 10529-B Braddock Road, Fairfax, Virginia 22032 (United States)); Kapetanakos, C.A. (Beam Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States))

    1993-06-01T23:59:59.000Z

    A newly developed probe, having a 0.05% resolution, has been used to detect errors in the toroidal magnetic field of the NRL modified betatron accelerator. Measurements indicate that the radial field components (errors) are 0.1%--1% of the applied toroidal field. Such errors, in the typically 5 kG toroidal field, can excite resonances which drive the beam to the wall. Two sources of detected field errors are discussed. The first is due to the discrete nature of the 12 single turn coils which generate the toroidal field. Both measurements and computer calculations indicate that its amplitude varies from 0% to 0.2% as a function of radius. Displacement of the outer leg of one of the toroidal field coils by a few millimeters has a significant effect on the amplitude of this field error. Because of uniform toroidal periodicity of these coils this error is a good suspect for causing the excitation of the damaging [ital l]=12 resonance seen in our experiments. The other source of field error is due to the current feed gaps in the vertical magnetic field coils. A magnetic field is induced inside the vertical field coils' conductor in the opposite direction of the applied toroidal field. Fringe fields at the gaps lead to additional field errors which have been measured as large as 1.0%. This source of field error, which exists at five toroidal locations around the modified betatron, can excite several integer resonances, including the [ital l]=12 mode.

  4. India Energy Outlook: End Use Demand in India to 2020

    E-Print Network [OSTI]

    de la Rue du Can, Stephane

    2009-01-01T23:59:59.000Z

    input Coal gas oil nuclear hydro Energy output Own Uses Transmission and distribution loses Electricity delivered Primary factor The Agriculture

  5. DEVELOPMENT OF MODIFIED WIND TURBINE: A PAST REVIEW

    E-Print Network [OSTI]

    Rob Res; N R Deshmukh; S J Deshmukh; N R Deshmukh; S J Deshmukh

    Wind energy represents a viable alternative, as it is a virtually endless resource. Through the next several decades, renewable energy technologies, thanks to their continually improving performance and cost, and growing recognition of their Environmental, economic and social values, will grow increasingly competitive with Traditional energy technologies, so that by the middle of the 21 st century, renewable Energy, in its various forms, should be supplying half of the world’s energy needs. In this paper various types of wind turbine are reviewed to understand and the development and modification of horizontal axis wind turbine and how more power can be generated compared to bare turbine of the same rotor blade diameter.

  6. Landscaping for Energy Savings Compiled by staff of the WSU Extension Energy Library

    E-Print Network [OSTI]

    Collins, Gary S.

    to the Energy Information Administration, almost a third of the residential electricity consumption in the U landscaping around residential homes, commercial structures, office buildings, and government-owned buildings control, and water usage all affect energy consumption and this consumption can be modified to some extent

  7. New measurements of the astrophysical S factor for {sup 12}C(p,{gamma}){sup 13}N reaction at low energies and the asymptotic normalization coefficient (nuclear vertex constant) for the p+{sup 12}C{yields}{sup 13}N reaction

    SciTech Connect (OSTI)

    Burtebaev, N.; Zazulin, D. M. [Institute of Nuclear Physics, 050032 Almaty (Kazakhstan); Igamov, S. B.; Yarmukhamedov, R. [Institute of Nuclear Physics, 100214 Tashkent (Uzbekistan); Peterson, R. J. [Department of Physics, University of Colorado, Boulder, Colorado 80309-0390 (United States)

    2008-09-15T23:59:59.000Z

    New measurements of differential and total cross sections for the {sup 12}C(p,{gamma}){sup 13}N reaction have been made at beam energies of E{sub p}=354,390,460,463,565,750, and 1061 keV. Analysis of the astrophysical S factor S(E) for the {sup 12}C(p,{gamma}){sup 13}N reaction at low energies and of the reaction rates has been carried out within the R-matrix approach by using the previously measured nuclear vertex constant (or the respective asymptotic normalization coefficient) for the virtual decay {sup 13}N{yields}p+{sup 12}C to fix the direct capture part of the amplitude in S(E). It is demonstrated that the R-matrix approach, using the measured asymptotic normalization coefficient, can be employed as an ideal tool, minimizing the uncertainties associated with a calculation of the direct capture cross section of the {sup 12}C(p,{gamma}){sup 13}N reaction at extremely low energies. New information on the proton and {gamma} width for the first excited state of {sup 13}N is obtained.

  8. Comprehensive national energy strategy

    SciTech Connect (OSTI)

    NONE

    1998-04-01T23:59:59.000Z

    This Comprehensive National Energy Strategy sets forth a set of five common sense goals for national energy policy: (1) improve the efficiency of the energy system, (2) ensure against energy disruptions, (3) promote energy production and use in ways that respect health and environmental values, (4) expand future energy choices, and (5) cooperate internationally on global issues. These goals are further elaborated by a series of objectives and strategies to illustrate how the goals will be achieved. Taken together, the goals, objectives, and strategies form a blueprint for the specific programs, projects, initiatives, investments, and other actions that will be developed and undertaken by the Federal Government, with significant emphasis on the importance of the scientific and technological advancements that will allow implementation of this Comprehensive National Energy Strategy. Moreover, the statutory requirement of regular submissions of national energy policy plans ensures that this framework can be modified to reflect evolving conditions, such as better knowledge of our surroundings, changes in energy markets, and advances in technology. This Strategy, then, should be thought of as a living document. Finally, this plan benefited from the comments and suggestions of numerous individuals and organizations, both inside and outside of government. The Summary of Public Comments, located at the end of this document, describes the public participation process and summarizes the comments that were received. 8 figs.

  9. Matter & Energy Solar Energy

    E-Print Network [OSTI]

    Rogers, John A.

    See Also: Matter & Energy Solar Energy· Electronics· Materials Science· Earth & Climate Energy at the University of Illinois, the future of solar energy just got brighter. Although silicon is the industry Electronics Over 1.2 Million Electronics Parts, Components and Equipment. www.AlliedElec.com solar energy

  10. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Federal buildings which begin the planning process by 2020 to achieve zero-net energy by 2030 PotentialEnergy Efficiency & Renewable Energy Overview of Hydrogen and Fuel Cell Activities Dr. Sunita of Energy Military Energy and Alternative Fuels Conference March 17-18, 2010 San Diego, CA #12;2 1. Overview

  11. Monthly energy review, December 1995

    SciTech Connect (OSTI)

    NONE

    1995-12-21T23:59:59.000Z

    This publication presents an overview of EIA`s recent monthly energy statistics. The statistics cover the major activities of US production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. Also included are international energy and thermal and metric conversion factors. An energy preview of alternative fuel providers vehicle fleet surveys is included. The publication is intended for use by members of Congress, Federal and State agencies, energy analysts, and the general public.

  12. Appendix G: Conversion factors

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 111 1,613 122 40CoalLease(Billion CubicPotentialNov-14 Dec-14 Jan-1538,469Appendix E44D-2 Table4

  13. Anthrax Lethal Factor

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProductsAlternative FuelsSanta3 Tableimpurity ion heating fromAnthonyThiang

  14. A general design for energy test procedures

    SciTech Connect (OSTI)

    Meier, Alan

    2000-06-15T23:59:59.000Z

    Appliances are increasingly controlled by microprocessors. Unfortunately, energy test procedures have not been modified to capture the positive and negative contributions of the microprocessor to the appliance's energy use. A new test procedure is described which captures both the mechanical and logical features present in many new appliances. We developed an energy test procedure for refrigerators that incorporates most aspects of the proposed new approach. Some of the strengths and weaknesses of the new test are described.

  15. Dark Energy in Global Brane Universe

    E-Print Network [OSTI]

    Yongli Ping; Lixin Xu; Chengwu Zhang; Hongya Liu

    2007-12-20T23:59:59.000Z

    We discuss the exact solutions of brane universes and the results indicate the Friedmann equations on the branes are modified with a new density term. Then, we assume the new term as the density of dark energy. Using Wetterich's parametrization equation of state (EOS) of dark energy, we obtain the new term varies with the red-shift z. Finally, the evolutions of the mass density parameter $\\Omega_2$, dark energy density parameter $\\Omega_x$ and deceleration parameter q_2 are studied.

  16. Modified natural inflation: A small single field model with a large tensor to scalar ratio

    E-Print Network [OSTI]

    Debaprasad Maity; Pankaj Saha

    2015-01-09T23:59:59.000Z

    In this paper we explored in detail a phenomenological model of modified single field natural inflation in light of recent cosmological experiments, BICEP2. Our main goal is to construct an inflationary model which not only predicts the important cosmological quantities such as $(n_s, r)$ compatible with experimental observation, but also is consistent with the low energy effective theory framework. Therefore, all the fundamental scale apart from $M_p$ and quantities of our interest should be within the sub-Planckian region. In order to achieve our goal we modify the usual single field natural inflationary model by a specific form of higher derivative kinetic term called kinetic gravity braiding (KGB). One of our guiding principles to construct such a model is the constant shift symmetry of the axion. We have chosen the form of the KGB term in such a way that it predicts the required value of $n_s\\simeq 0.96$ and a large tensor to scalar ratio $r> 0.1$. Importantly for a wide range of parameter space our model has sub-Planckian axion decay constant $f$ and the scale of inflation $\\Lambda$. However, the reheating after the end of inflation limits the value of $f$ so that we are unable to get $f$ to be significantly lower than $M_p$. Furthermore, we find sub-Planckian field excursion for the axion field $\\Delta \\phi \\simeq f$ for the sufficient number of e-folding ${\\cal N} \\gtrsim 50 $. We also discussed in detail about the natural preheating mechanism in our model based on the recently proposed Chern-Simon coupling. We found this gravity mediated preheating is very difficult to achieve in our model. With our general analytic argument, we also would like to emphasize that Chern-Simons mediated preheating is very unlikely to happen in any slow roll inflationary model.

  17. Achieving Energy Savings Through Residential Energy Use Behavior

    E-Print Network [OSTI]

    Office PIER Buildings End-use Energy Efficiency Research Program www.energy.ca.gov/research/buildings May and purchasing decisions, are important factors in achieving energy savings in buildings. However, little efficiency programs for the residential sector? Technologies such as smart meters and home area networks

  18. Scalar and Vector Field Constraints, Deflection of Light and Lensing in Modified Gravity (MOG)

    E-Print Network [OSTI]

    J. W. Moffat

    2014-10-06T23:59:59.000Z

    A conformal coupling of the metric in the Jordan frame to the energy-momentum tensor, screens the scalar field gravitational coupling strength $G$ in modified gravity (MOG). The scalar field acquires a mass which depends on the local matter density: the scalar field particle is massive for the Sun and earth, where the density is high compared to low density environments in cosmology and astrophysics. Together with the screening of the vector field $\\phi_\\mu$, this guarantees that solar system tests of gravity are satisfied. The conformal metric is coupled to the electromagnetic matter field and energy-momentum tensor, screening $G$ for the Sun and the deflection of light by the Sun and the Shapiro time delay in MOG are in agreement with general relativity. For galaxies and galactic clusters the enhanced gravitational coupling constant $G$ leads to agreement with gravitational lensing without dark matter. For compact binary pulsars the screening of $G$ removes the monopole and dipole gravitational radiation modes in agreement with the binary pulsar timing data.

  19. It Pays to Modify Existing Crude Preheat Trains to Conserve More Energy!

    E-Print Network [OSTI]

    Feintuch, H. M.; Peer, V.; Wong, W. H.

    1982-01-01T23:59:59.000Z

    called EXTRA (EXchanger TRAin) which can be used to determine which modifications to an existing crude preheat train will be most effective in economically recovering additional waste heat. The program can rigorously develop temperature profiles and heat...

  20. Problems with Modified Theories of Gravity, as Alternatives to Dark Energy

    E-Print Network [OSTI]

    Norbert Straumann

    2008-09-30T23:59:59.000Z

    In this contribution to the conference "Beyond Einstein: Historical Perspectives on Geometry, Gravitation and Cosmology in the Twentieth Century", we give a critical status report of attempts to explain the late accelerated expansion of the universe by modifications of general relativity. Our brief review of such alternatives to the standard cosmological model addresses mainly readers who have not pursued the vast recent literature on this subject.

  1. Problems with Modified Theories of Gravity, as Alternatives to Dark Energy

    E-Print Network [OSTI]

    Straumann, Norbert

    2008-01-01T23:59:59.000Z

    In this contribution to the conference "Beyond Einstein: Historical Perspectives on Geometry, Gravitation and Cosmology in the Twentieth Century", we give a critical status report of attempts to explain the late accelerated expansion of the universe by modifications of general relativity. Our brief review of such alternatives to the standard cosmological model addresses mainly readers who have not pursued the vast recent literature on this subject.

  2. Highly porous chemically modified carbon cryogels and their coherent nanocomposites for energy applications

    E-Print Network [OSTI]

    Cao, Guozhong

    the pores, porous media for natural gas (methane) storage at reduced pressure, and scaffolds for hydride the pores, porous media for natural gas (m of Mechanical Science and Engineering, Huazhong University of Science & Technology, Wuhan, 430074, China d

  3. Evaluation of a modified quadruple energy window scatter subtraction algorithm for quantitative imaging with In-111

    E-Print Network [OSTI]

    Sadler,John J.

    2000-01-01T23:59:59.000Z

    be considered. The tracer principle has been the foundation for treating thousands of thyroid cancer patients with I-131. All radionuclide therapy treatments rely on the principle that assumes the in-vivo pharmacokinetic information for a therapeutic... have identical chemical properties and in-vivo distribution as Y-90 MoAbs if it is to be used to provide the pharmacokinetic information required for planning the RIT dose for the patient. Tumor uptake and in-vivo distribution of the antibody...

  4. Copper nanocrystal modified activated carbon for supercapacitors with enhanced volumetric energy and power density

    E-Print Network [OSTI]

    Cao, Guozhong

    capacitors (EDLCs) have evoked wide interest in recent years due to their ability to supply high power of EDLCs is based on the quick formation of a double layer of surface charges and counter materials for EDLCs should have large surface area to accumulate a large amount of charges, and a size

  5. Enhanced Energy Conversion Efficiency of the Sr2+-Modified Nanoporous TiO2 Electrode Sensitized

    E-Print Network [OSTI]

    Huang, Yanyi

    efficiency achieved with dye-sensitized solar cells may be attributed to the nanoporous TiO2 electrode.3 photon to current efficiency of a solar cell based on the dye Ru[LL(NCS)2] (L ) 2,2-bipyridine-4 cell based on dye-sensitized nanoporous TiO2 thin film electrode, and power conversion efficiency

  6. Chemically Modified Metal Oxide Nanostructure for Photoelectrochemical Water Splitting

    E-Print Network [OSTI]

    Wang, Gongming

    2013-01-01T23:59:59.000Z

    for onboard Vehicular Hydrogen Storage, 2006, US Departmenttheir potential use as hydrogen storage materials. Recently,of Energy targets for hydrogen storage in transportation

  7. DOE Announces Webinars on Genetically Modified Algae, NREL's...

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

    Ready Homes, Building Stronger More Efficient Homes, and More DOE Announces Webinars on Fuel Cells at NASCAR, an Advanced Energy Retrofit Guide for Healthcare Facilities, and...

  8. Webinar: Genetically Modified Algae: A Risk-Benefit Assessment | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradley Nickell DirectorThe& Federal EnergyEnergy 7,Juneof

  9. Monthly energy review, April 1997

    SciTech Connect (OSTI)

    NONE

    1997-04-01T23:59:59.000Z

    This report presents an overview of monthly energy statistics. The statistics cover the major activities of U.S. production, consumption, trade, stocks, and prices for petroleum, natural gas, coal, electricity, and nuclear energy. International energy and thermal metric conversion factors are included.

  10. Geothermal energy: a brief assessment

    SciTech Connect (OSTI)

    Lunis, B.C.; Blackett, R.; Foley, D. (eds.)

    1982-07-01T23:59:59.000Z

    This document includes discussions about geothermal energy, its applications, and how it is found and developed. It identifies known geothermal resources located in Western's power marketing area, and covers the use of geothermal energy for both electric power generation and direct applications. Economic, institutional, environmental, and other factors are discussed, and the benefits of the geothermal energy resource are described.

  11. On the stability of a galactic disk in modified gravity

    E-Print Network [OSTI]

    Roshan, Mahmood

    2015-01-01T23:59:59.000Z

    We find the dispersion relation for tightly wound spiral density waves in the surface of rotating, self-gravitating disks in the framework of Modified Gravity (MOG). Also, the Toomre-like stability criterion for differentially rotating disks has been derived for both fluid and stellar disks. More specifically, the stability criterion can be expressed in terms of a matter density threshold over which the instability occurs. In other words the local stability criterion can be written as $\\Sigma_0sound speed), $\\kappa$ (epicycle frequency) and $\\alpha$ and $\\mu_0$ are the free parameters of the theory. In the case of a stellar disk the radial velocity dispersion $\\sigma_r$ appears in $\\Sigma_{\\text{crit}}$ instead of $v_s$. We find the exact form of the function $\\Sigma_{\\text{crit}}$ for both stellar and fluid self-gravitating disks. Also, we use a sub-sample of THINGS catalog of spiral galaxies in order to ...

  12. Modified Magnicon for High-Gradient Accelerator R&D

    SciTech Connect (OSTI)

    Jay L. Hirshfield

    2011-12-19T23:59:59.000Z

    Analysis, and low-power cold tests are described on a modified design intended for the Ka-band pulsed magnicon now in use for high-gradient accelerator R and D and rare elementary particle searches at the Yale University Beam Physics Laboratory. The modification is mainly to the output cavity of the magnicon, which presently operates in the TM310 mode. It is proposed to substitute for this a dual-chamber TE311 cavity structure. The first chamber is to extract about 40% of the beam power (about 25 MW) at 34.272 GHz, while the second chamber is to convey the power to four WR-28 output waveguides. Minor design changes are also proposed for the penultimate 11.424 GHz cavity and the beam collector. The intention of these design changes is to allow the magnicon to operate reliably 24/7, with minor sensitivity to operating parameters.

  13. Thermodynamics of Modified Chaplygin Gas and Tachyonic Field

    E-Print Network [OSTI]

    Samarpita Bhattacharya; Ujjal Debnath

    2010-12-26T23:59:59.000Z

    Here we generalize the results of the work of ref. [10] in modified Chaplygin gas model and tachyonic field model. Here we have studied the thermodynamical behaviour and the equation of state in terms of volume and temperature for both models. We have used the solution and the corresponding equation of state of our previous work [12] for tachyonic field model. We have also studied the thermodynamical stability using thermal equation of state for the tachyonic field model and have shown that there is no critical points during thermodynamical expansion. The determination of $T_{*}$ due to expansion for the tachyonic field have been discussed by assuming some initial conditions. Here, the thermal quantities have been investigated using some reduced parameters.

  14. Thermodynamics of apparent horizon and modified Friedman equations

    E-Print Network [OSTI]

    Ahmad Sheykhi

    2010-12-02T23:59:59.000Z

    Starting from the first law of thermodynamics, $dE=T_hdS_h+WdV$, at apparent horizon of a FRW universe, and assuming that the associated entropy with apparent horizon has a quantum corrected relation, $S=\\frac{A}{4G}-\\alpha \\ln \\frac{A}{4G}+\\beta \\frac{4G}{A}$, we derive modified Friedmann equations describing the dynamics of the universe with any spatial curvature. We also examine the time evolution of the total entropy including the quantum corrected entropy associated with the apparent horizon together with the matter field entropy inside the apparent horizon. Our study shows that, with the local equilibrium assumption, the generalized second law of thermodynamics is fulfilled in a region enclosed by the apparent horizon.

  15. The Metastability Threshold for Modified Bootstrap Percolation in d Dimensions

    E-Print Network [OSTI]

    Alexander E. Holroyd

    2006-04-03T23:59:59.000Z

    In the modified bootstrap percolation model, sites in the cube {1,...,L}^d are initially declared active independently with probability p. At subsequent steps, an inactive site becomes active if it has at least one active nearest neighbour in each of the d dimensions, while an active site remains active forever. We study the probability that the entire cube is eventually active. For all d>=2 we prove that as L\\to\\infty and p\\to 0 simultaneously, this probability converges to 1 if L=exp^{d-1} (lambda+epsilon)/p, and converges to 0 if L=exp^{d-1} (lambda-epsilon)/p, for any epsilon>0. Here exp^n denotes the n-th iterate of the exponential function, and the threshold lambda equals pi^2/6 for all d.

  16. Test of modified BCS model at finite temperature

    E-Print Network [OSTI]

    V. Yu. Ponomarev; A. I. Vdovin

    2005-08-24T23:59:59.000Z

    A recently suggested modified BCS (MBCS) model has been studied at finite temperature. We show that this approach does not allow the existence of the normal (non-superfluid) phase at any finite temperature. Other MBCS predictions such as a negative pairing gap, pairing induced by heating in closed-shell nuclei, and ``superfluid -- super-superfluid'' phase transition are discussed also. The MBCS model is tested by comparing with exact solutions for the picket fence model. Here, severe violation of the internal symmetry of the problem is detected. The MBCS equations are found to be inconsistent. The limit of the MBCS applicability has been determined to be far below the ``superfluid -- normal'' phase transition of the conventional FT-BCS, where the model performs worse than the FT-BCS.

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

    DOE Patents [OSTI]

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

    2007-07-24T23:59:59.000Z

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

  18. Tests of Modified Gravity Theories in the Solar System

    E-Print Network [OSTI]

    Ali Mozaffari

    2014-04-01T23:59:59.000Z

    We review the case for testing preferred acceleration scale theories of gravity (sometimes falling under the guise of MOdified Newtonian Dynamics) in the Solar System using the forthcoming LISA Pathfinder (LPF) mission. Using a combination of analytical and numerical results, we suggest that different types of theory should be detectable using the predicted anomalous tidal stresses effects around the saddle points of the Newtonian gravitational field. The saddle point bubbles expected extent of $\\sim 400$ km are to be contrasted with potential miss parameters of $\\leq 10$ km, making such a test in easy reach of LPF. We also consider routes to constraining our theories from data, based on scenarios of both null and positive results.

  19. The Impact of Organic Friction Modifiers on Engine Oil Tribofilms

    E-Print Network [OSTI]

    Ratoi, Monica; Alghawel, Husam; Suen, Yat Fan; Nelson, Kenneth

    2013-01-01T23:59:59.000Z

    Organic friction modifiers (OFMs) are important additives in the lubrication of machines and especially of car engines where performance improvements are constantly sought-after. Together with zinc dialkyldithiophosphates (ZDDPs) antiwear additives, OFMs have a predominant impact on the tribological behaviour of the lubricant. In the current study, the influence of OFMs on the generation, tribological properties and chemistry of ZDDP tribofilms has been investigated by combining tribological experiments (MTM) with in-situ film thickness measurements through optical interference imaging (SLIM), Alicona profilometry and X-ray photoelectron spectroscopy. OFMs and antiwear additives have been found to competitively react/adsorb on the rubbing ferrous substrates in a tribological contact. The formation and removal (through wear) of tribofilms are dynamic processes which result from the simultaneous interaction of these two additives with the surface of the wear track. By carefully selecting the chemistry of OFMs, ...

  20. The Navier-Stokes problem modified by an absorption term

    E-Print Network [OSTI]

    Hermenegildo Borges de Oliveira

    2009-03-31T23:59:59.000Z

    In this work we consider the Navier-Stokes problem modified by the absorption term $|\\textbf{u}|^{\\sigma-2}\\textbf{u}$, where $\\sigma>1$, which is introduced in the momentum equation. % For this new problem, we prove the existence of weak solutions for any dimension $N\\geq 2$ and its uniqueness for N=2. % Then we prove that, for zero body forces, the weak solutions extinct in a finite time if $12$. % We prove also that for a general non-zero body forces, the weak solutions exponentially decay in time for any $\\sigma>1$. In the special case of a suitable forces field which vanishes at some instant, we prove that the weak solutions extinct at the same instant provided $1<\\sigma<2$.